CN107822582B

CN107822582B - Multi-instrument channel hysteroscope

Info

Publication number: CN107822582B
Application number: CN201710981495.4A
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Anqing Medical Co Ltd
Current assignee: Anqing Medical Co Ltd
Priority date: 2017-10-20
Filing date: 2017-10-20
Publication date: 2024-06-07
Anticipated expiration: 2037-10-20
Also published as: CN107822582A

Abstract

The invention discloses a multi-instrument channel hysteroscope, which comprises: the device comprises an insertion part and an operation part, wherein the operation part comprises a handle and a handgrip forming a certain angle with the handle, at least two instrument inlets are arranged on the handle, an instrument outlet is arranged on the front end face of the insertion part, and any instrument inlet is communicated with the instrument outlet through an instrument channel penetrating through the interior of the handle and the inner cavity of the insertion tube; the handle is provided with a water inlet base and a water outlet base, the front end of the insertion part is provided with a water inlet and a water outlet, and the water inlet base and the water outlet base are respectively communicated with the water inlet and the water outlet through a water inlet channel and a water outlet channel which are arranged in the handle and the inner cavity of the insertion pipe in a penetrating manner. The invention has two instrument channels, so that two medical instruments can be inserted into the human body for treatment at the same time, and the two medical instruments can be matched with each other to achieve better treatment effect, thereby greatly shortening the operation time, relieving the pain of patients, improving the treatment effect of the operation and having good practical value.

Description

Multi-instrument channel hysteroscope

Technical Field

The invention relates to the field of medical instruments, in particular to a multi-instrument channel hysteroscope.

Background

The hysteroscope is mainly used for examining and treating the uterine cavity, and the hysteroscope enters the uterine cavity by utilizing the front part of the lens body so as to intuitively and accurately become the first-choice examination method for gynecological hemorrhagic diseases and intrauterine lesions. However, in the prior art, when examining the uterus of a patient, a hysteroscope is usually required to be stretched into the uterus from the patient, the patient is observed, and after the focus is found, the hysteroscope is taken out to treat the patient, or the hysteroscope is kept in the patient, and a therapeutic instrument is stretched into the patient at the same time to treat the patient.

The first embodiment discloses a hysteroscope, including mirror sheath, speculum, the speculum is located in the mirror sheath, is equipped with water inlet and delivery port on the outer sheath of sheath and is equipped with operating electrode between speculum and inner sheath, and operating electrode is connected with the operating handle who establishes outside the mirror sheath the speculum is equipped with the slider in the activity outside the speculum with be equipped with the suction tube that is used for adsorbing the tissue between the inner sheath, the activity is equipped with the baffle that is used for opening and shutting the suction tube port in the suction tube.

The second embodiment discloses a hysteroscope, including insert tube, camera, light source and display part, the inserted end of insert tube is located to camera and light source, and the rear end of insert tube is provided with display part, and display part is connected with the camera, and this hysteroscope still includes: the ring taking device is arranged in the insertion tube and can extend out of the insertion tube or retract into the insertion tube from the insertion end of the insertion tube; and the telescopic-clamping control device is connected with the ring taking device, can control the ring taking device to extend out of or retract into the insertion tube from the insertion end of the insertion tube, and can control the ring taking device to clamp the intrauterine device when the ring taking device extends out.

The third embodiment discloses a hysteroscope with electric sintering machine, including insert tube, camera, light source, display part and handle, the insertion end of insert tube is located to camera and light source, and the non-end of inserting of insert tube is provided with the handle, and display part is connected with the camera, and this hysteroscope with electric sintering machine still includes: the electric sintering machine is fixedly arranged at the insertion end of the insertion tube, and the telescopic switch control device is connected with the electric sintering machine and can control the electric sintering machine to extend out of or retract into the insertion tube from the insertion end of the insertion tube, and when the electric sintering machine extends out, the electric sintering machine is controlled to be started or closed.

In the operation process, physiological saline is required to be injected into the uterus of a patient for uterine dilatation, and no device for blocking the outflow of liquid in the uterine cavity is arranged outside the insertion tube on the three hysteroscopes, namely, a barrier is not arranged at the uterine cavity opening of the patient, so that the liquid is very easy to outflow.

The fourth prior embodiment discloses a medical operation mirror, in particular to a hysteroscope applied to gynecological minimally invasive surgery. The utility model provides a hysteroscope, includes the mirror tube, the one end of mirror tube is equipped with the objective, is connected with the main part at the other end of mirror tube, the mirror tube include bending section and straightway, bending section be equipped with objective and prism, straightway and main part be connected, be equipped with imaging channel and the working channel that are parallel to each other in the mirror tube, imaging channel and working channel run through whole mirror tube, the objective be located imaging channel's tip, still be equipped with prism and image transmission optic fibre in imaging channel, be provided with the light guide beam interface in the main part, be equipped with the light guide beam in the light guide beam interface, the light guide beam is located the mirror tube.

The medical surgical mirror has a complex structure and high cost, cannot be used as a disposable medical instrument, and is easy to cause secondary pollution when the cleaning work is not done in place, so that patients are subjected to unnecessary injury.

The fifth embodiment of the invention discloses a medical instrument, in particular to a hysteroscope water leakage preventing device, which comprises a transparent film which can be adhered to a vulva, wherein a hysteroscope operation support is arranged at the center of the transparent film, an operation hole is formed in the middle of the operation support, a rubber plug for sealing the hole is matched in the operation hole, and the hysteroscope can penetrate through the operation support to extend into a uterine cavity after the rubber plug is sealed on the hysteroscope.

The hysteroscope is complex to operate in actual use and has lower safety and reliability.

In the prior art taking the hysteroscope as an example, the hysteroscope has the defects of more operation parts, poor sealing performance and the like, the arrangement of all parts on the handle of the hysteroscope is not quite reasonable, an operator is inconvenient in the operation process, and the production cost of the hysteroscope is high, so that the hysteroscope needs to be repeatedly used for a plurality of times, disinfection is needed before each use, the use is more complicated, and the probability of cross infection among patients is also very high.

In addition, in the prior art, the medical instrument is inserted into the human body through the hysteroscope, and only a single medical instrument can be used for operation at a time, so that the operation efficiency is greatly limited.

Disclosure of Invention

The invention discloses a multi-instrument channel hysteroscope, which comprises: the insertion part comprises an insertion tube and an imaging module seat fixed at the front end of the insertion tube, and an optical observation device and a light source are arranged in the imaging module seat; the operation part is connected to the tail end of the insertion part through a rigid connecting piece and comprises a handle and a handle forming a certain angle with the handle, the handle and the handle form a pistol shape together, and a self-locking type quick connector electrically connected with the optical observation device and the light source is arranged on the handle; wherein, at least two instrument inlets are arranged on the handle, an instrument outlet is arranged on the front end face of the insertion part, and any instrument inlet is communicated with the instrument outlet through an instrument channel penetrating the interior of the handle and the inner cavity of the insertion tube; the handle is provided with a water inlet base and a water outlet base, the front end of the insertion part is provided with a water inlet and a water outlet, the water inlet base is communicated with the water inlet through a water inlet channel penetrating the interior of the handle and the inner cavity of the insertion pipe, and the water outlet base is communicated with the water outlet through a water inlet channel penetrating the interior of the handle and the inner cavity of the insertion pipe.

Preferably, two instrument inlets are arranged on the handle, namely a first instrument inlet and a second instrument inlet, an instrument outlet is arranged on the front end face of the insertion part, the first instrument inlet is communicated with the instrument outlet through a first instrument channel penetrating through the interior of the handle and the inner cavity of the insertion tube, and the second instrument inlet is communicated with the instrument outlet through a second instrument channel penetrating through the interior of the handle and the inner cavity of the insertion tube

Further, the first instrument channel and the second instrument channel are mutually isolated, a first instrument outlet and a second instrument outlet which are mutually separated are arranged on the front end face of the insertion part, the first instrument inlet is communicated with the first instrument outlet through the first instrument channel penetrating through the inside of the handle and the inner cavity of the insertion tube, and the second instrument inlet is communicated with the second instrument outlet through the second instrument channel penetrating through the inside of the handle and the inner cavity of the insertion tube.

Preferably, the second instrument channel is located below the first instrument channel.

Preferably, one of the first instrument channel and the second instrument channel shares the same pipeline with the water inlet channel, one end of the same pipeline is communicated with the same outlet arranged on the front end face of the insertion part, the other end of the same pipeline is provided with two branch pipes in a three-way valve shape, the same outlet is respectively communicated with the second instrument inlet and the water inlet base, the same outlet is a circular outlet or a special-shaped outlet, and the special-shaped outlet refers to an outlet with an irregular geometric shape in section.

Further, the first instrument channel, the second instrument channel and the water inlet channel share the same pipeline, one end of the same pipeline is communicated with the same outlet arranged on the front end face of the insertion part, the other end of the same pipeline is provided with three branch pipes which are respectively communicated with the first instrument inlet nozzle, the second instrument inlet nozzle and the water inlet base, wherein the irregular outlet is an outlet with an irregular shape, the same outlet is a circular outlet or an irregular outlet, and the irregular outlet refers to an outlet with an irregular geometric shape in section.

Further, the maximum effective internal diameter of the cross section of the profiled outlet is 2.5mm-2.9mm.

Preferably, the first instrument nozzle and the second instrument nozzle are located side by side above the handle; or the first instrument inlet is positioned above the handle, and the second instrument inlet is arranged at the tail end of the handle along the extension line of the axis of the handle.

Further, the water inlet base and the water outlet base are both positioned at the tail end of the handle or are both positioned below the handle.

Preferably, the water inlet and the water outlet are both positioned on the front end face of the insertion tube; or the water inlet is positioned on the front end face of the insertion tube, and the water outlet is positioned on the front side face of the insertion tube.

Further, the insertion tube is provided with a bending part, and the axis of the insertion end of the insertion tube forms an acute angle with the axis of the non-insertion end of the insertion tube.

Preferably, the acute angle is in the range of 15-30 degrees.

Preferably, the first instrument nozzle and the second instrument nozzle are provided with waterproof plugs.

Further, the operation portion is made of a nonmetallic material.

Preferably, the outer shell of the operation part is composed of an upper shell and a lower shell, and the upper shell and the lower shell are respectively formed integrally.

Further, a printed circuit board is fixedly arranged in the operation part, and the optical imaging device, the light source, the printed circuit board and the self-locking type quick connector are connected through an electric connecting wire in sequence.

Preferably, the handle is provided with a holding part, and the holding part comprises a plurality of anti-slip structures formed by arranging a plurality of protrusions at intervals.

Further, the insertion tube is made of a flexible material.

The hysteroscope with the double instrument channels provided by the invention can be used for simultaneously inserting two medical instruments into a human body for treatment due to the two instrument channels, and the two medical instruments can be mutually matched to achieve a better treatment effect.

In order to make the above-mentioned objects of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The invention will now be described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of a hysteroscope with dual instrument channels according to a first embodiment of the present invention;

FIG. 2-1 is a perspective view of the internal structure of a hysteroscope with dual instrument channels according to a first embodiment of the invention;

FIG. 2-2 is a schematic view of the structure of the included angle between the handle and the handgrip in various embodiments of the invention;

FIG. 3 is a schematic view of a pipe structure in which one of two instrument channels and a water inlet channel share a common pipe in a second embodiment of the present invention;

FIG. 4 is a schematic view of a pipe structure in which two instrument channels and a water inlet channel share a common pipe in the second embodiment of the present invention;

FIG. 5-1 is a schematic view of a front end of an insertion portion of a hysteroscope according to a first embodiment of the present invention;

FIG. 5-2 is a schematic view of another front end of an insertion portion of a hysteroscope according to a second embodiment of the present invention

Fig. 5-3 are schematic front end views of an insertion portion of a hysteroscope according to a second embodiment of the present invention;

FIGS. 5-4 are front end and side schematic views of an insertion portion of a hysteroscope in accordance with a second embodiment of the present invention;

FIG. 6-1 is a schematic view of the overall structure of a dual instrument channel hysteroscope according to a third embodiment of the present invention;

FIG. 6-2 is a schematic view of another overall structure of a dual instrument channel hysteroscope according to a third embodiment of the present invention;

fig. 7 is a schematic view of a bending portion on an insertion tube of a hysteroscope according to an embodiment of the present invention.

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present invention with specific examples.

In the present invention, the upper, lower, left and right in fig. 1 and fig. 2-1 are regarded as the upper, lower, left and right of the hysteroscope described in the present specification.

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the examples described herein, which are provided to fully and completely disclose the present invention and fully convey the scope of the invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, like elements/components are referred to by like reference numerals.

Unless otherwise indicated, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, it will be understood that terms defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

First embodiment

As shown in fig. 1 and 5-1, a first embodiment of the present invention discloses a hysteroscope comprising: the insertion part comprises an insertion tube 1 and an imaging module seat 2 fixed at the front end of the insertion tube, and an optical imaging device 21 and a light source 22 are arranged in the imaging module seat 2; the operation part is connected to the tail end of the insertion part through a rigid connecting piece and comprises a handle 3 and a handle 4 forming a certain angle with the handle, the handle 3 and the handle 4 form a pistol shape together, and the handle 3 is provided with a self-locking quick connector 5 electrically connected with the optical imaging device 21 and the light source 22; 2-1 and 5-1, at least two instrument inlets are arranged on the handle, and the number of the two instrument inlets is preferably two, namely a first instrument inlet 61a and a second instrument inlet 61b, a first instrument outlet 62a and a second instrument outlet 62b are respectively arranged on the front end face of the insertion part, the first instrument inlet 61a is communicated with the first instrument outlet 62a through a first instrument channel 63a penetrating through the interior of the handle 3 and the inner cavity of the insertion tube 1, and the second instrument inlet 61b is communicated with the second instrument outlet 62b through a second instrument channel 63b penetrating through the interior of the handle 3 and the inner cavity of the insertion tube 1; the handle 4 is provided with a water inlet base 71 and a water outlet base 81, the front end of the insertion part is provided with a water inlet 72 and a water outlet 82, the water inlet base 71 is communicated with the water inlet 72 through a water inlet channel 73 penetrating the interior of the handle and the inner cavity of the insertion pipe, and the water outlet base 81 is communicated with the water outlet 82 through a water outlet channel 83 penetrating the interior of the handle and the inner cavity of the insertion pipe.

The dual-instrument-channel hysteroscope component disclosed by the embodiment is simple in structural design, attractive and elegant in shape, an operator can conveniently hold the hysteroscope to enter the human body for operation treatment, and a second medical instrument can be inserted into the traditional single-instrument-channel hysteroscope after one medical instrument operation is completed, so that the hysteroscope operation is performed by using the dual-instrument-channel hysteroscope provided by the embodiment.

Specifically, the front end of the insertion tube 1 is fixedly provided with an imaging module seat 2, the imaging module seat 2 is of a cylindrical structure, an optical imaging device 21 and a light source 22 can be fixedly embedded in the imaging module seat 2, the optical imaging device 21 is usually a camera, and the optical imaging device 21 and the light source 22 are electrically connected with a self-locking quick connector 5 arranged on the handle 3. In order to make the picture shot by the camera clearer, the camera is arranged on the top end face of the imaging module seat 2; the light source 22 is preferably an LED light source, which has the advantages of small volume, long service life, high brightness, low heat and the like, and further improves diagnosis efficiency and diagnosis accuracy. However, the present invention is not limited thereto, and any light emitting member capable of emitting light may be used as the light source 22, such as an optical fiber, a light emitting diode, or the like. Further, as shown in fig. 5, the number of the light sources 22 may be one or more, and when there are a plurality of light sources 22, it is preferable to uniformly arrange the light sources 22 around the camera to form the effect of the shadowless lamp, so as to avoid misdiagnosis or missed diagnosis caused by shadow generated by folds on the inner wall of the viscera. The light source 22 may be disposed on an end surface of the imaging module holder or on a side wall of the imaging module holder.

Further, after the camera 21 and the light source 22 are assembled in the imaging module seat 2, the assembled imaging module seat 2 can be regarded as a camera module, and in the production process, the assembled camera module can be directly assembled with the insertion tube 1, so that the assembly efficiency is improved. Furthermore, in order to make the matching between the camera module and the insertion tube 1 more reliable, a buckle or other connection structure can be directly arranged on the housing of the imaging module seat 2, and a corresponding bayonet or connection structure is arranged at the position corresponding to the insertion tube 1, so that the connection reliability between the camera module and the insertion tube 1 is increased.

Further, in this embodiment, the operation portion is preferably pistol-shaped, the pistol-shaped operation portion is easier to grasp, the comfort level of the operator is higher, and the operation is more flexible. The operation part comprises a handle 3 connected with the insertion tube 1 and a handle 4 forming a certain angle with the handle, as shown in fig. 2-2, the handle 4 is connected below the handle 3 from about one quarter of the rear end of the handle 3, and the handle 4 extends to the rear lower side of the handle 3 along the self axis of the handle 4, so that an included angle 32 is formed between the handle 4 and about one quarter of the rear end of the handle 3, the included angle 32 is an acute angle, the handle 3 and the handle 4 form a pistol shape in the whole shape, the handle 3 corresponds to a gun barrel part of the pistol, the handle 4 corresponds to a gun barrel part of the pistol, and a medical staff can hold the handle 4 and the handle 3 during operation, thereby being very convenient for the medical staff to hold the hysteroscope for operation. In order to prevent the hysteroscope from sliding off or slipping off accidentally during the use process of the operator, the handle 4 is provided with a holding part 41, the position of the holding part 41 is preferably arranged at the position corresponding to the trigger of the pistol on the operating part, the holding part 41 comprises a plurality of anti-slip structures formed by arranging a plurality of protrusions at intervals, the protrusions can be linear, circular arc or wavy, and can also be in other irregular shapes, and the anti-slip structures formed by the protrusions can increase the use comfort and the safety of the operator.

In the first embodiment of the present invention, the first instrument channel 63a and the second instrument channel 63b are isolated from each other, the first instrument outlet 62a and the second instrument outlet 62b are provided on the front end face of the insertion portion, which are separated from each other, the first instrument inlet 61a is communicated with the first instrument outlet 62a via the first instrument channel 63a penetrating the inside of the handle and the inner cavity of the insertion tube, and the second instrument inlet 61b is communicated with the second instrument outlet 62b via the second instrument channel 63b penetrating the inside of the handle and the inner cavity of the insertion tube. The two instrument channels are mutually isolated, so that the mutual influence caused by staggering, collision and the like between two medical instruments inserted simultaneously in the surgical treatment process can be avoided, the judgment of an operator is influenced, and the surgical treatment effect is influenced.

Preferably, the second instrument channel 63b is located below the first instrument channel 63a, both instrument channels being arranged along the axis of the insertion tube 1, and the two instrument nozzles being arranged side by side above the handle 3 for the convenience of the operator. As shown in fig. 2-1, in the present embodiment, the first instrument inlet 61a and the second instrument inlet 61b are located above the handle 3, the first instrument outlet 62a and the second instrument outlet 62b are provided on the front end face of the insertion portion, the first instrument channel 63a is penetrated through the interior of the handle 3 and the inner cavity of the insertion tube 1 to communicate the first instrument inlet 61a with the first instrument outlet 62a, and the second instrument channel 63b is penetrated through the interior of the handle 3 and the inner cavity of the insertion tube 1 to communicate the second instrument inlet 61b with the second instrument outlet 62b to form a channel for inserting a medical instrument into the interior of the human body. The device inlet nozzle is arranged above the handle 3, when an operator performs operation treatment, the operator can hold the handle below the handle by one hand, the other hand inserts the medical device into the device channel from the device inlet nozzle above the handle, the operation action lines of the two are not mutually influenced, the operation is very convenient, and the situation that the operator hands touch the inserted medical device by mistake when the operator holds the handle to move the operation part is avoided.

The water inlet base 71 and the water outlet base 81 of the present embodiment are both located at the tail end of the handle 4, and the water inlet base 71 and the water outlet base 81 are disposed at the rear lower side of the self-locking quick connector 5 of the handle 3, that is, in actual operation, the water inlet base 71 and the water outlet base 81 are located at the rear of the operator, so that interference to the operator caused by water pipes externally connected with the water inlet base 71 and the water outlet base 81 in the use process can be completely avoided, and interference to the patient can be avoided. The water inlet seat bottom 71 and the water outlet seat bottom 81 are respectively provided with a water inlet valve 74 or a water outlet valve 84 for opening and closing, so that water inlet or water outlet can be freely controlled according to actual use requirements, and water inlet or water outlet amount can be conveniently adjusted.

Further, in this embodiment, the water inlet seat bottom 71 is communicated with the water inlet 72 disposed on the front end face of the insertion portion via the water inlet channel 73, the water outlet seat 81 is communicated with the water outlet 82 disposed on the front end face of the insertion portion via the water outlet channel 83, the water inlet channel 73 and the water outlet channel 83 are two mutually independent pipes, the water inlet channel 73 and the water outlet channel 83 can be disposed in the inner cavity of the insertion tube 1 and extend along the insertion tube 1, the water inlet 72 and the water outlet 82 can be disposed on the end face of the insertion end of the imaging module seat 2, and it is ensured that physiological saline can be injected into the patient or blood turbid liquid affecting the definition of the camera in the patient during operation can be timely removed. As shown in fig. 5 to 4, the water inlet 72 may be disposed on an end surface of the insertion end of the imaging module holder 2, and the water outlet 82 may be disposed on a front side wall of the insertion portion, so that a certain distance is provided between the water inlet 82 and the water inlet 72 located on the front end surface, thereby preventing water injected into a human body from the water inlet 72 from being immediately discharged from the water outlet 82 beside the human body, and such arrangement is beneficial to increasing the distance of water circulation, improving cleaning efficiency, and saving cleaning time.

The other ends of the water inlet channel 73 and the water outlet channel 83 are respectively communicated with the water inlet seat bottom 71 and the water outlet seat bottom 81, and the water inlet amount in the water inlet channel 73 and the water outlet amount in the water outlet channel 83 can be respectively controlled by the water inlet valve 74 and the water outlet valve 84. Preferably, in the present invention, the inner diameters of the water inlet channel 73 and the water outlet channel 83 are set to 1.1mm to 1.5mm, preferably 1.2mm or 1.3mm, to meet the requirement of water inlet and outlet amount during the operation.

As shown in fig. 7, the insertion tube 1 is provided with a bending portion 11, so that an included angle between a central axis of an insertion end portion of the insertion tube 1 and a central axis of a non-insertion end of the insertion tube 1 is an acute angle 12, the angle of the acute angle 12 is preferably 15 degrees to 30 degrees, further, the angle of the acute angle 12 is preferably 25 degrees, 28 degrees or 30 degrees, when a doctor examines a patient, the doctor only needs to rotate the hysteroscope by a small margin to examine each part in the uterus, and the problem that the cervical orifice of the patient is damaged by rotating the hysteroscope with the cervical orifice as a fulcrum when the doctor needs to examine the inner wall of the uterus in the process of receiving the examination is avoided.

In this embodiment, as shown in fig. 1, the outside of the non-insertion end of the insertion tube 1 is preferably sleeved with a water blocking ring 9, and the water blocking ring 9 is movable along the axis of the insertion tube 1. The water blocking ring 9 is preferably of a non-metallic structure, and is preferably made of a soft rubber or other material, has high surface fitting degree with the patient, does not harm the patient, and does not feel uncomfortable to the patient. Further, the water retaining ring 9 is preferably bowl-shaped, the opening of the water retaining ring 9 faces the insertion end of the insertion tube 1, the water retaining ring 9 can move on the insertion tube 1 along the axis, and after the operator measures and determines the insertion depth of the patient, the position of the water retaining ring 9 can be adjusted, so that the insertion depth is controlled, and the insertion tube 1 is prevented from being damaged or the uterus wall is prevented from being burst.

Preferably, the first and second instrument nozzles 61a, 61b in this embodiment are standard fitting luer connectors, which are standardized micro-non-permeable connectors, connected by male luer connectors to mating female luer connector portions, a convenient connection device for use in the medical industry that greatly simplifies the administration of liquid and gaseous medical fluids. One end of the luer of this embodiment is connected to the instrument channel 63 and the outer surface of the end of the luer for mating with other components has first external threads to facilitate connection with the other components.

Further, the first instrument inlet 61a and the second instrument inlet 61b may be provided with waterproof plugs. Because the end of the instrument channel 63 extending into the patient is not closed, an instrument inlet waterproof plug with adjustable aperture is preferably sleeved at the end of the instrument inlet 61, and the instrument inlet waterproof plug is preferably connected with the instrument inlet 61 through threads, when the instrument inlet waterproof plug is screwed down, the aperture of a sealing part in the instrument inlet waterproof plug is reduced to form a tight fit with an inserted medical instrument, so that an effective seal is formed, and leakage of liquid in the patient through the instrument channel is prevented.

The waterproof plug of the instrument nozzle comprises a connector and a spiral cover, and through holes are formed in the middle of the connector and the middle of the spiral cover so as to allow the instrument to pass through. The inner surface of one end of the connector is provided with a first internal thread which corresponds to a first external thread arranged on the luer connector, and the first internal thread and the first external thread of the first instrument inlet nozzle 61 a/the second instrument inlet nozzle 61b can be mutually matched and screwed. The inner wall of the other end of the joint has a certain taper, namely the inner wall is a surface inclined towards the axis of the joint; the outer surface of the other end of the connector is provided with a second external thread which can be mutually matched and screwed with a second internal thread arranged on the inner wall of the cap of the screw cap; the waterproof silica gel plug is characterized in that a raised waterproof silica gel plug is further arranged in the screw cap of the connector, the end part of the waterproof silica gel plug is fixedly provided with the silica gel plug with waterproof function and elasticity, when the screw cap is screwed into the connector, the raised waterproof silica gel plug is inserted into the connector, and along with the screwing of the screw cap, the silica gel plug on the raised waterproof silica gel plug is screwed into the through hole of the connector, and the silica gel plug is compressed due to the gradual reduction of the aperture of the through hole, so that the waterproof function is realized.

When a user diagnoses a patient, the waterproof plug of the instrument inlet is screwed on the luer connector, and at the moment, the screw cap does not need to be screwed with the connector completely. When the medical instrument is needed to be used, the instrument is inserted into place from the first instrument inlet mouth 61 a/the second instrument inlet mouth 61b, the spiral cover is screwed, the silica gel plug on the spiral cover is pressed and elastically deformed, and the silica gel plug can be tightly matched with the medical instrument after being compressed, so that liquid in a patient is prevented from seeping out from the middle parts of the first instrument inlet mouth 61 a/the second instrument inlet mouth 61b and the instrument inlet mouth waterproof plug. When the waterproof silica gel plug is specifically implemented, the insertion end of the insertion tube 1 enters the uterus of a patient, water is injected into the body of the patient through the water pipe, so that the uterus is inflated, observation is convenient, and meanwhile, the water blocking ring 9 is movable to seal the uterus of the patient. The patient is then examined with the camera, and when a lesion is found, the first instrument channel 63 a/the second instrument channel 63b is used to deliver medical instruments, and diagnosis and treatment are performed on the patient in time.

In this embodiment, the handle 2 is preferably made of a non-metallic material with low cost, such as plastic, so that the production cost is greatly reduced; meanwhile, in the invention, the insertion tube 1 is also preferably made of a nonmetallic material, so that the hysteroscope can be used as a disposable medical instrument without being disinfected before each use, thereby greatly improving diagnosis and treatment efficiency, improving the safety coefficient of diagnosis and treatment and effectively avoiding cross infection of patients in the examination process.

Preferably, the operating portion of the present embodiment is made of a non-metal material, and may be made of a hard plastic, such as Polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), polypropylene (PP), etc., but the present invention is not limited thereto, and may be made of other non-metal materials of various materials.

Preferably, the insertion tube 1 is made of a metal material, such as stainless steel (e.g., SUS 304), and a soft hose made of a non-metal material, such as polyamide (PA tube), polytetrafluoroethylene (PTFE tube), polyurethane (PU) tube, or thermoplastic polyurethane elastomer (TPU) tube, may be used as the insertion tube 1 according to different usage requirements. However, the present invention is not limited thereto, and various other materials may be selected as the insertion tube 1 according to the use requirements.

Further, in order to facilitate assembly, in this embodiment, the outer casing of the operation portion is formed by two parts, that is, an upper casing and a lower casing, and a connecting member capable of being mutually matched is provided between the two parts, and when the assembly operation is completed in the operation portion, the two parts are assembled and covered. Furthermore, the upper shell and the lower shell of the operation part are respectively and integrally formed, so that the operation part is simple and convenient to process and low in production cost, and can be used as disposable operation consumable, and can be discarded after use, thereby avoiding secondary pollution and avoiding causing economic pressure to patients.

In this embodiment, a printed circuit board 31 (PCB board) is preferably provided in the handle 3, and the camera 21 and the light source 22, the printed circuit board 31, and the self-locking quick connector 5 are connected in order by an electrical connection line. The camera 21 and the light source 22 are connected with the self-locking type quick connector 5 through the PCB, so that the length and the number of electric connecting wires in the handle 3 can be effectively reduced, the diameter of the insertion tube 1 can be further reduced, and the conversion of the core number of the electric connecting wires can be realized.

Second embodiment

As shown in fig. 1, a second embodiment of the present invention discloses a hysteroscope comprising: the insertion part comprises an insertion tube 1 and an imaging module seat 2 fixed at the front end of the insertion tube, and an optical imaging device 21 and a light source 22 are arranged in the imaging module seat 2; the operation part is connected to the tail end of the insertion part through a rigid connecting piece and comprises a handle 3 and a handle 4 forming a certain angle with the handle, the handle 3 and the handle 4 form a pistol shape together, and the handle 3 is provided with a self-locking quick connector 5 electrically connected with an optical imaging device 21 and a light source 22; 2-1 and 5-3, at least two instrument inlets are arranged on the handle, and the number of the two instrument inlets is preferably two, namely a first instrument inlet 61a and a second instrument inlet 61b, a first instrument outlet 62a and a second instrument outlet 62b are respectively arranged on the front end face of the insertion part, the first instrument inlet 61a is communicated with the first instrument outlet 62a through a first instrument channel 63a penetrating through the interior of the handle 3 and the inner cavity of the insertion tube 1, and the second instrument inlet 61b is communicated with the second instrument outlet 62b through a second instrument channel 63b penetrating through the interior of the handle 3 and the inner cavity of the insertion tube 1; the handle 4 is provided with a water inlet base 71 and a water outlet base 81, the front end of the insertion part is provided with a water inlet 72 and a water outlet 82, the water inlet base 71 is communicated with the water inlet 72 through a water inlet channel 73 penetrating the interior of the handle and the inner cavity of the insertion pipe, and the water outlet base 81 is communicated with the water outlet 82 through a water outlet channel 83 penetrating the interior of the handle and the inner cavity of the insertion pipe.

The present embodiment is different from the first embodiment in that one of the first instrument channel 63a and the second instrument channel 63b of the present embodiment may share one pipe with the water inlet channel 73, and when the first instrument channel 63a and the water inlet channel 73 share one pipe, as shown in fig. 3, the shared pipe has two branch pipes in the shape of a three-way valve, which communicate with the first instrument inlet nozzle 61a and the water inlet base 71, respectively. Similarly, the second instrument channel 63b of the present embodiment may share a common pipe with the water inlet channel 73, and as shown in fig. 3, the common pipe has two branch pipes in the shape of a three-way valve, and the two branch pipes are respectively connected to the second instrument inlet nozzle 61b and the water inlet base 71. The instrument channel and the water inlet channel share one pipeline, so that the diameter of the inner part of the insertion tube of the hysteroscope is as small as possible, the insertion part can be inserted from a narrower gap in the human body, the surgical wound area is reduced, the pain of a patient is further relieved, and the success rate of surgery is improved.

Further, when one of the first and second instrument channels 63a and 63b and the water inlet channel 73 share the same pipe, the maximum inner diameters of the first instrument outlet 62a, the second instrument outlet 62b and the water inlet outlet 72 can be further increased if the outer diameter of the insertion tube in the related art is kept unchanged. The inner diameters of the instrument tube and the water tube are maximized without increasing the outer diameter of the insertion tube 1, so that the water inflow can be greatly improved, the insertion of medical instruments with different sizes can be facilitated, and the applicable range of the medical instruments can be enlarged.

Further, as shown in fig. 5-2, when the first instrument channel 63a and the water inlet channel 73 share the same pipe, the first instrument outlet 62a and the water inlet outlet 72 are the same shaped outlet provided on the front end face of the insertion portion; or when the second instrument channel 63b and the water inlet channel 73 share the same pipe, the second instrument outlet 62b and the water inlet outlet 72 are the same special-shaped outlet arranged on the front end face of the insertion part, that is, the cross section of the outlet of the shared pipe can be set to be the cross section of an irregular geometric shape, the inner diameters of the instrument pipe and the water pipe are maximized under the condition that the inner diameter of the insertion pipe 1 is not changed, the water inlet amount can be greatly improved, the insertion of medical instruments with different sizes can be facilitated, and the range of applicable medical instruments can be enlarged. As shown in fig. 5-3, it will be appreciated by those skilled in the art that when one of the first and second instrument channels shares a conduit with the water inlet channel, the cross-sectional shape of the same outlet of the shared conduit on the front end face of the insertion portion may also be an outlet of circular or other cross-sectional shape.

Further, the first device channel 63a, the second device channel 63b and the water inlet channel 73 in this embodiment may also share the same pipe, and as shown in fig. 4, the shared pipe has three branch pipes in the shape of four-way valves, and the three branch pipes are respectively communicated with the first device inlet nozzle 61a, the second device inlet nozzle 61b and the water inlet base 71.

Further, as shown in fig. 5 to 4, when the first instrument channel 63a, the second instrument channel 63b and the water inlet channel 73 share the same pipe, the first instrument outlet 62a, the second instrument outlet 62b and the water inlet outlet 72 are the same shaped outlet provided on the front end face of the insertion portion, that is, the cross-sectional shape of the outlet of the shared pipe may be set to be an irregular geometric cross-section, and the maximum effective inner diameter 281 of the cross-section of the shaped outlet is 2.5 to 2.9mm, and in the present invention, the maximum effective inner diameter referred to herein is the inner diameter of the largest circular outlet that can be obtained in the shaped cross-section, preferably 2.8mm, and the inner diameters of the instrument tube and the water tube are maximized without changing the inner diameter of the insertion tube 1, so that the water inlet amount can be greatly increased, and the insertion of medical instruments of various sizes can be facilitated, and the range of applicable medical instruments can be enlarged. It will be appreciated by those skilled in the art that when the first instrument channel, the second instrument channel and the water inlet channel share a single conduit, the same outlet on the front end face of the insertion portion as the first instrument outlet, the second instrument outlet and the water inlet outlet may also be outlets having a circular or other shape in cross-section, with the largest effective inner diameter 281 of the cross-section of the outlets being 2.5-2.9mm.

As shown in fig. 1, in the present embodiment, the first instrument inlet nozzle 61a and the second instrument inlet nozzle 61b are located above the handle 3, the instrument outlet is provided on the front end face of the insertion portion, and the instrument channel is penetrated through the interior of the handle 3 and the inner cavity of the insertion tube 1, and the first instrument inlet nozzle 61a, the second instrument inlet nozzle 61b and the instrument outlet are communicated, so as to form a channel for inserting the medical instrument into the interior of the human body. The first instrument inlet mouth 61a and the second instrument inlet mouth 61b are arranged above the handle 3, when an operator performs operation treatment, the operator can hold the handle below the handle by one hand, the other hand inserts the medical instrument into the instrument channel from the instrument inlet mouth 61 above the handle, the operation action routes of the two are not affected, the operation is very convenient, and the operator is prevented from mistakenly touching the inserted medical instrument when the operator holds the handle to move the operation part.

In addition, the water inlet base 71 and the water outlet base 81 of the present embodiment are both located at the end of the handle 4, and the water inlet base 71 and the water outlet base 81 are disposed below the rear of the self-locking quick connector 5 of the handle 3, that is, during actual operation, the water inlet base 71 and the water outlet base 81 are located at the rear of the operator, so that interference to the operator caused by the water pipes externally connected with the water inlet base 71 and the water outlet base 81 during use can be completely avoided, and interference to the patient can be avoided. The water inlet seat bottom 71 and the water outlet seat bottom 81 are respectively provided with a water inlet valve 74 or a water outlet valve 84 for opening and closing, so that water inlet or water outlet can be freely controlled according to actual use requirements, and water inlet or water outlet amount can be conveniently adjusted.

Further, in this embodiment, the water inlet seat bottom 71 is communicated with the water inlet 72 disposed on the front end face of the insertion portion via the water inlet channel 73, the water outlet seat 81 is communicated with the water outlet 82 disposed on the front end face of the insertion portion via the water outlet channel 83, the water inlet channel 73 and the water outlet channel 83 are two mutually independent pipes, the water inlet 72 and the water outlet 82 can be both disposed on the end face of the insertion end of the imaging module seat 2, so as to ensure that normal saline can be injected into the patient or blood turbid liquid affecting the definition of the camera in the patient during operation can be removed in time; as shown in fig. 5 to 4, the water inlet 72 may be disposed on an end surface of the insertion end of the imaging module holder 2, and the water outlet 82 may be disposed on a front side wall of the insertion portion, so that a certain distance is provided between the water inlet 72 and the water inlet 72 located on the front end surface, so that water injected into a human body from the water inlet 72 is prevented from being immediately discharged from the water outlet 82 beside the human body, and such arrangement is beneficial to increasing the distance of water circulation, improving cleaning efficiency, and saving cleaning time.

As shown in fig. 7, the insertion tube 1 is provided with a bending portion 11, so that an included angle between an axis of an insertion end portion of the insertion tube 1 and an axis of a non-insertion end of the insertion tube 1 is an acute angle 12, the angle of the acute angle 12 is preferably 15 degrees to 30 degrees, further, the angle of the acute angle 12 is preferably 25 degrees, 28 degrees or 30 degrees, when a doctor examines a patient, the doctor only needs to rotate the hysteroscope by a small margin to examine each part in the uterus, and the problem that the cervical orifice of the patient is damaged by rotating the hysteroscope with the cervical orifice as a fulcrum when the doctor needs to examine the inner wall of the uterus in the process of receiving the examination is avoided.

In the present invention, as shown in fig. 1, the outside of the non-insertion end of the insertion tube 1 is preferably sleeved with a water blocking ring 9, and the water blocking ring 9 is movable along the axis of the insertion tube 1. The water blocking ring 9 is preferably of a non-metallic structure, and is preferably made of a soft rubber or other material, has high surface fitting degree with the patient, does not harm the patient, and does not feel uncomfortable to the patient. Further, the water retaining ring 9 is preferably bowl-shaped, the opening of the water retaining ring 9 faces the insertion end of the insertion tube 1, the water retaining ring 9 can move on the insertion tube 1 along the axis, and after the operator measures and determines the insertion depth of the patient, the position of the water retaining ring 9 can be adjusted, so that the insertion depth is controlled, and the insertion tube 1 is prevented from being damaged or the uterus wall is prevented from being burst.

Further, in this embodiment, the operation portion is preferably pistol-shaped, the pistol-shaped operation portion is easier to grasp, the comfort level of the operator is higher, and the operation is more flexible. The operation part comprises a handle 3 connected with the insertion tube 1 and a handle 4 forming a certain angle with the handle, as shown in fig. 2-2, the handle 4 is connected below the handle 3 from about one quarter of the rear end of the handle 3, and the handle 4 extends to the rear lower side of the handle 3 along the self axis of the handle 4, so that an included angle 32 is formed between the handle 4 and about one quarter of the rear end of the handle 3, the included angle 32 is an acute angle, the handle 3 and the handle 4 form a pistol shape in the whole shape, the handle 3 corresponds to a barrel part of the pistol, the handle 4 corresponds to a gun part of the pistol, and a medical staff can hold the handle 4 and the handle 3 during operation, thereby being very convenient for the medical staff to hold the hysteroscope for operation. In order to prevent the hysteroscope from sliding off or slipping off accidentally during the use process of the operator, the handle 4 is provided with a holding part 41, the position of the holding part 41 is preferably arranged at the position corresponding to the trigger of the pistol on the operating part, the holding part 41 comprises a plurality of anti-slip structures formed by arranging a plurality of protrusions at intervals, the protrusions can be linear, circular arc or wavy, and can also be in other irregular shapes, and the anti-slip structures formed by the protrusions can increase the use comfort and the safety of the operator.

Still further, the instrument inlet 61 may be provided with a waterproof plug. Because the end of the instrument channel 63 extending into the patient is not closed, an instrument inlet waterproof plug with adjustable aperture is preferably sleeved at the end of the instrument inlet 61, and the instrument inlet waterproof plug is preferably connected with the instrument inlet 61 through threads, when the instrument inlet waterproof plug is screwed down, the aperture of a sealing part in the instrument inlet waterproof plug is reduced to form a tight fit with an inserted medical instrument, so that an effective seal is formed, and leakage of liquid in the patient through the instrument channel is prevented.

The hysteroscope part that this embodiment disclosed is simple, structural design is reasonable, and the shape elegant appearance is convenient for the operator to hold the hysteroscope and gets into human inside and carry out the operation treatment, and share same pipeline between one of them and the water inlet channel of first apparatus passageway or second apparatus passageway for keep the external diameter of insert tube unchangeable in the prior art under the circumstances, can further increase the biggest inside diameter of first apparatus export, second apparatus export and water inlet outlet, apparatus export and water inlet outlet more are suitable for operation, compare in all hysteroscopes on the present market lower cost, it is more convenient to use, have fine practical value.

Third embodiment

As shown in fig. 6-1 and 6-2, a third embodiment of the present invention discloses a hysteroscope comprising: the insertion part comprises an insertion tube 1 and an imaging module seat 2 fixed at the front end of the insertion tube, and an optical imaging device 21 and a light source 22 are arranged in the imaging module seat 2; the operation part is connected to the tail end of the insertion part through a rigid connecting piece and comprises a handle 3 and a handle 4 forming a certain angle with the handle, the handle 3 and the handle 4 form a pistol shape together, and the handle 3 is provided with a self-locking quick connector 5 electrically connected with the optical imaging device 21 and the light source 22; 2-1 and 5-1, at least two instrument inlets are arranged on the handle, and the number of the two instrument inlets is preferably two, namely a first instrument inlet 61a and a second instrument inlet 61b, a first instrument outlet 62a and a second instrument outlet 62b are respectively arranged on the front end face of the insertion part, the first instrument inlet 61a is communicated with the first instrument outlet 62a through a first instrument channel 63a penetrating through the interior of the handle 3 and the inner cavity of the insertion tube 1, and the second instrument inlet 61b is communicated with the second instrument outlet 62b through a second instrument channel 63b penetrating through the interior of the handle 3 and the inner cavity of the insertion tube 1; the handle 4 is provided with a water inlet base 71 and a water outlet base 81, the front end of the insertion part is provided with a water inlet 72 and a water outlet 82, the water inlet base 71 is communicated with the water inlet 72 through a water inlet channel 73 penetrating the interior of the handle and the inner cavity of the insertion pipe, and the water outlet base 81 is communicated with the water outlet 82 through a water outlet channel 83 penetrating the interior of the handle and the inner cavity of the insertion pipe.

The difference between this embodiment and the first and second embodiments is that, as shown in fig. 6-1, the second instrument insertion nozzle 61b is disposed at the end of the handle 3 along the extension line of the axis of the handle 3, that is, the second instrument insertion nozzle 61b is disposed on the extension line of the axis of the insertion tube 1, and the second instrument outlet 62b of the second instrument channel 63b is disposed on the end face of the insertion end of the imaging module seat 2, and since the inlet section of the second instrument insertion nozzle 61b is coaxial with the axis of the handle and the axis of the insertion tube, the second instrument channel 63b can be kept in a straight line, so that some finer surgical instruments can be smoothly inserted from the hysteroscope, and damage to the surgical instruments can be avoided.

Similarly, the first instrument inlet nozzle 61a may be disposed at the end of the handle 3 along the extension line of the axis of the handle 3, that is, the first instrument inlet nozzle 61a is disposed on the extension line of the axis of the insertion tube 1, and since the inlet section of the first instrument inlet nozzle 61a is coaxial with the axis of the handle and the axis of the insertion tube, the first instrument channel 63a is kept in a straight line, so that some finer surgical instruments can be smoothly inserted from the hysteroscope, and damage to the surgical instruments can be avoided.

Or as shown in fig. 6-2, the first device inlet nozzle 61a and the second device inlet nozzle 61b may be disposed at the end of the handle 3 along the extension line of the axis of the handle 3, that is, the first device inlet nozzle 61a and the second device inlet nozzle 61b are disposed on the extension line of the axis of the insertion tube 1, and the inlet sections of the first device inlet nozzle 61a and the second device inlet nozzle 61b are coaxial with the axis of the handle and the axis of the insertion tube, so that the first device channel 63a and the second device channel 63b are both kept in straight lines, and some tiny surgical devices can be smoothly inserted into the hysteroscope, and damage to the surgical devices can be avoided.

In this embodiment, the first instrument channel 63a and the second instrument channel 63b may be isolated from each other, the front end surface of the insertion portion is provided with a first instrument outlet 62a and a second instrument outlet 62b that are separated from each other, the first instrument inlet 61a is communicated with the first instrument outlet 62a through the first instrument channel 63a penetrating the inside of the handle and the inner cavity of the insertion tube, and the second instrument inlet 61b is communicated with the second instrument outlet 62b through the second instrument channel 63b penetrating the inside of the handle and the inner cavity of the insertion tube. The two instrument channels are mutually isolated, so that the mutual influence caused by staggering, collision and the like between two medical instruments inserted simultaneously in the surgical treatment process can be avoided, the judgment of an operator is influenced, and the surgical treatment effect is influenced.

Further, as shown in fig. 5 to 4, when the first instrument channel 63a, the second instrument channel 63b and the water inlet channel 73 share the same pipe, the first instrument outlet 62a, the second instrument outlet 62b and the water inlet outlet 72 are the same shaped outlet provided on the front end face of the insertion portion, that is, the cross-sectional shape of the outlet of the shared pipe may be set to be an irregular geometric cross-section, and the maximum effective inner diameter 281 of the cross-section of the shaped outlet is 2.5 to 2.9mm, and in the present invention, the maximum effective inner diameter referred to herein is the inner diameter of the largest circular outlet that can be obtained in the shaped cross-section, preferably 2.8mm, and the inner diameters of the instrument tube and the water tube are maximized without changing the inner diameter of the insertion tube 1, so that the water inlet amount can be greatly increased, and the insertion of medical instruments of various sizes can be facilitated, and the range of applicable medical instruments can be enlarged. It will be appreciated by those skilled in the art that when one of the first and second instrument channels shares a common conduit with the water inlet channel, the first, second and water inlet outlets may also be outlets of circular or other cross-section with a maximum effective internal diameter 281 of 2.5-2.9mm in cross-section.

Further, in this embodiment, the operation portion is preferably pistol-shaped, the pistol-shaped operation portion is easier to grasp, the comfort level of the operator is higher, and the operation is more flexible. The operation part comprises a handle 3 connected with the insertion tube 1 and a handle 4 forming a certain angle with the handle, as shown in fig. 2-2, the handle 4 is connected below the handle 3 from about one quarter of the rear end of the handle 3, and the handle 4 extends to the rear lower side of the handle 3 along the self axis of the handle 4, so that an acute angle is formed between the handle 4 and about one quarter of the rear end of the handle 3, the handle 3 and the handle 4 are in a pistol shape in the whole shape, the handle 3 corresponds to a barrel part of the pistol, the handle 4 corresponds to a gun part of the pistol, and a medical staff can hold the handle 4 and the handle 3 during operation, thereby being very convenient for the medical staff to hold the hysteroscope for operation. In order to prevent the hysteroscope from sliding off or slipping off accidentally during the use process of the operator, the handle 4 is provided with a holding part 41, the position of the holding part 41 is preferably arranged at the position corresponding to the trigger of the pistol on the operating part, the holding part 41 comprises a plurality of anti-slip structures formed by arranging a plurality of protrusions at intervals, the protrusions can be linear, circular arc or wavy, and can also be in other irregular shapes, and the anti-slip structures formed by the protrusions can increase the use comfort and the safety of the operator.

The hysteroscope part disclosed by the embodiment is simple, reasonable in structural design, attractive and elegant in shape, convenient for an operator to hold the hysteroscope and enter the human body for operation treatment, and the instrument is not required to be bent in the process of inserting the instrument channel, so that the probability of damage of the instrument is reduced, and compared with all hysteroscopes in the current market, the hysteroscope part is lower in cost, more convenient to use and has good practical value.

In conclusion, the hysteroscope can perform routine examination on the uterus of a patient and treat the patient in time, so that the hysteroscope is convenient and safe; meanwhile, the whole examination and treatment process is visual, safe and reliable, the damage to a patient can be minimized, and the traditional single-instrument-channel hysteroscope can be inserted into a second medical instrument for operation after the operation of one medical instrument is completed, and the dual-instrument-channel hysteroscope provided by the invention can be used for performing hysteroscope operation. Furthermore, the foregoing embodiments of the invention are illustrative only of the principles and functions of the present invention, and are not in limitation thereof. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations be included in the scope of the following claims be embraced by the claims, which are intended to be included within the scope of the present invention.

Claims

1. A multi-instrument channel hysteroscope, comprising:

The insertion part comprises an insertion tube and an imaging module seat fixed at the front end of the insertion tube, and an optical observation device and a light source are arranged in the imaging module seat;

the operation part is connected to the tail end of the insertion part through a rigid connecting piece and comprises a handle and a handle which forms a certain angle with the handle, the handle and the handle form a pistol shape together, and a self-locking quick connector which is electrically connected with the optical observation device and the light source is arranged on the handle;

The handle is provided with a water inlet base and a water outlet base, the front end of the insertion part is provided with a water inlet and a water outlet, the water inlet base is communicated with the water inlet through a water inlet channel penetrating the interior of the handle and the inner cavity of the insertion pipe, and the water outlet base is communicated with the water outlet through a water outlet channel penetrating the interior of the handle and the inner cavity of the insertion pipe;

The handle is provided with two instrument inlets, namely a first instrument inlet and a second instrument inlet, the front end face of the insertion part is provided with an instrument outlet, the first instrument inlet is communicated with the instrument outlet through a first instrument channel penetrating through the interior of the handle and the inner cavity of the insertion tube, and the second instrument inlet is communicated with the instrument outlet through a second instrument channel penetrating through the interior of the handle and the inner cavity of the insertion tube;

The first instrument channel and the second instrument channel are mutually isolated, a first instrument outlet and a second instrument outlet which are mutually separated are arranged on the front end face of the insertion part, the first instrument inlet is communicated with the first instrument outlet through the first instrument channel penetrating through the inside of the handle and the inner cavity of the insertion tube, and the second instrument inlet is communicated with the second instrument outlet through the second instrument channel penetrating through the inside of the handle and the inner cavity of the insertion tube.

2. The multi-instrument channel hysteroscope of claim 1, wherein the second instrument channel is located below the first instrument channel.

3. The hysteroscope with multiple instrument channels according to claim 1, wherein one of the first instrument channel and the second instrument channel shares a same pipeline with the water inlet channel, one end of the same pipeline is communicated with a same outlet arranged on the front end face of the insertion part, the other end of the same pipeline is provided with two branch pipes in a three-way valve shape, the two branch pipes are respectively communicated with the second instrument inlet nozzle and the water inlet base, the same outlet is a circular outlet or a special-shaped outlet, and the special-shaped outlet refers to an outlet with an irregular geometric shape in section.

4. The multi-instrument channel hysteroscope according to claim 1, wherein the first instrument channel, the second instrument channel and the water inlet channel share the same pipe, one end of the same pipe is communicated with the same outlet arranged on the front end face of the insertion part, the other end of the same pipe is provided with three branch pipes which are respectively communicated with the first instrument inlet nozzle, the second instrument inlet nozzle and the water inlet base, wherein the same outlet is a circular outlet or a special-shaped outlet, and the special-shaped outlet is an outlet with an irregular geometric shape in section.

5. The multi-instrument channel hysteroscope of claim 4 wherein the maximum effective internal diameter of the cross-section of the shaped outlet is 2.5mm-2.9mm.

6. The multi-instrument channel hysteroscope of any one of claims 1-5 wherein the first instrument nozzle and the second instrument nozzle are positioned side-by-side above the handle; or the first instrument inlet is positioned above the handle, and the second instrument inlet is arranged at the tail end of the handle along the axis extension line of the handle.

7. The multi-instrument channel hysteroscope of claim 6, wherein the water inlet base and the water outlet base are both located at the end of the handle or both located below the handle.

8. The multi-instrument channel hysteroscope of claim 6 wherein the water inlet and the water outlet are both located on the front end face of the insertion tube; or the water inlet is positioned on the front end face of the insertion pipe, and the water outlet is positioned on the front end side face of the insertion pipe.

9. The multi-instrument channel hysteroscope of claim 6 wherein the insertion tube has a bend, the axis of the insertion end of the insertion tube being at an acute angle to the axis of the non-insertion end of the insertion tube.

10. The multi-instrument channel hysteroscope of claim 9 wherein the acute angle is in the range of 15-30 degrees.

11. The multi-instrument channel hysteroscope of claim 6 wherein the first instrument inlet and/or the second instrument inlet are provided with a waterproof plug.

12. The multi-instrument channel hysteroscope according to claim 6, wherein the outer casing of the operating portion is formed of two parts, namely an upper casing and a lower casing, which are integrally formed, respectively.

13. The multi-instrument channel hysteroscope according to claim 6, wherein a printed circuit board is fixedly arranged in the operating portion, and the optical imaging device, the light source, the printed circuit board and the self-locking type quick connector are sequentially connected through an electrical connecting wire.

14. The multi-instrument channel hysteroscope of claim 6,

The handle is provided with a holding part, and the holding part comprises a plurality of anti-slip structures formed by arranging a plurality of protrusions at intervals.

15. The multi-instrument channel hysteroscope of claim 6,

The insertion tube is made of flexible materials.