CN108158549A - A kind of pipe with small pipe diameter endoscope based on external magnet driving - Google Patents

Abstract

The invention discloses a small-diameter endoscope driven by an external magnet, which is characterized in that it comprises: a capsule-shaped head, a channel sealing tube, a connecting body, a cable, and a tool channel tube; the capsule-shaped head includes : head sealing tube, head shell, ring magnet and camera module integrated with light source; the ring magnet is coaxially installed in the head shell, the camera module is installed in the through hole of the head shell, and one end of the cable is connected to the The camera module is connected, and the other end is connected to the external power control device after passing through the cable interface of the connecting body; one end of the tool channel tube is installed in the through hole of the head shell, and the other end is connected to the tool channel interface of the connecting body and The common channel connection of the suction interface; the head sealing tube is wrapped on the outside of the head shell, and the channel sealing tube is wrapped on the outside of the tool channel tube and the cable between the head shell and the connecting body; the endoscope passes through The external magnetic field is used for mobile control, which can realize painless and all-round controlled observation.

Description

A small-bore endoscope driven by an external magnet

technical field

The invention belongs to the technical field of medical instruments, and in particular relates to a small-diameter endoscope driven by an external magnet.

Background technique

The traditional endoscope is an intubation endoscope, which mainly enters the human body through passive insertion. Since the end of the intubation endoscope is equipped with an eyepiece, a cold light source and an optical fiber connected to the cold light source, the intubation endoscope The diameter of the endoscope is relatively large, and because it is inserted into the human body, the strength of the intubation endoscope is relatively high, and it will bring strong pain to the patient during the insertion process. Therefore, the general patient only has When the symptoms are very obvious, endoscopic examination will be done, thus delaying the best time for treatment. Different from intubation endoscopes, capsule endoscopes are now used in medical examinations, which can inspect the large and small intestines. This capsule endoscope can be directly swallowed into the human body through the mouth without pain. However, this capsule endoscope also has some disadvantages. Capsule endoscopes can only realize functions such as observation, photographing, and video recording, but cannot perform tasks such as biopsy sampling and minor surgery. If you want to make an accurate diagnosis, biopsy sampling is still very necessary. Therefore, after the capsule endoscopy is completed, there is a high probability that further biopsy tissue will be required for final diagnosis.

Contents of the invention

In view of this, the object of the present invention is to provide a small-diameter endoscope driven by an external magnet, which will not cause pain when the endoscope moves in the human body, and is controlled by an external magnetic field to achieve painless , All-round control and observation; at the same time, the endoscope is equipped with a tool channel required for inspection, and can perform biopsy tissue sampling operations.

The present invention is achieved through the following technical solutions:

A small-diameter endoscope driven by an external magnet, comprising: a capsule-shaped head, a channel sealing tube, a connecting body, cables, and a tool channel tube;

The capsule head includes: a head sealing tube, a head shell, a ring magnet and a camera module integrated with a light source;

The connecting body is respectively provided with a tool channel interface, a suction interface and a cable interface, and its interior is respectively provided with channels corresponding to the above-mentioned interfaces; and the tool channel interface and the suction interface are shared channels, and a suction device is installed on the suction interface;

The overall connection relationship is as follows: the ring magnet is installed in the head shell, and the axis of the ring magnet coincides with or is parallel to the axis of the head shell, and is used to cooperate with the external large magnet to realize the positioning and motion control of the head shell;

The camera module is installed in the through hole of the head shell, one end of the cable is connected to the camera module, and the other end passes through the cable interface of the connecting body, and is connected to an external power supply and image processing device;

One end of the tool channel tube is installed in the through hole of the head shell, and the other end is connected to the common channel of the tool channel interface and the suction interface of the connecting body; and the tool channel tube is located in the annular space of the ring magnet;

The head sealing tube covers the outside of the head housing, and does not seal the tool channel tube and the lens of the camera module; the channel sealing tube covers the tool channel tube and the outside of the cable between the head housing and the connecting body, Both ends of the channel sealing tube are respectively fixedly connected with the head sealing tube and the connecting body.

Further, it also includes water/air pipe;

The connecting body is also provided with a water/air interface;

One end of the water/air pipe is fixed in the through hole of the head shell, and the end is equipped with a water/air nozzle protruding from the end face of the head shell, and the other end passes through the water/air interface of the connecting body, It is connected with the external water/air supply device; and the water/air pipe is wrapped in the channel sealing tube.

Further, the sealing end cover of the camera is also included, and the sealing end cover of the camera is made of transparent material, and is installed on the lens of the camera module.

Further, both the head sealing tube and the channel sealing tube are made of polymer materials.

Further, the head shell adopts a split structure.

Further, the passage sealing pipe, water/air pipe and tool passage pipe are all soft pipes.

Further, the head shell is composed of a cylindrical structure and a conical structure docked with it, the cylindrical structure is formed by the butt joint of two semicircular cylinders, and the conical structure is formed by the butt joint of two semicircular cylinders ;The inside of the cylindrical structure is processed with an annular blind hole coaxial with it, which divides the cylindrical structure into a shell and an internal central cylinder. The annular blind hole is used to install the ring magnet, and the central cylinder of the cylindrical structure is processed with three axes. To the through holes, wherein the first axial through hole is used to install the camera module and the cable connected thereto, the second axial through hole is used to install the water/air pipe, and the third axial through hole is used to install the tool channel pipe; The inside of the frustum-shaped structure is respectively processed with three through holes corresponding to the axial through holes, which are respectively the first through hole communicated with the first axial through hole and the second through hole communicated with the second axial through hole. A through hole and a third through hole communicating with the third axial through hole.

Further, the head shell is composed of two semi-cylindrical butt joint structures, a cylindrical cavity with two ends closed for installing the ring magnet is processed in the head shell, and three axial through holes are respectively processed in the head shell , wherein the axial through hole for installing the tool channel pipe (12) passes through the central hole of the ring magnet (11), and the two axial through holes for installing the water/air pipe (16) and the cable (14) respectively Located on the outside of the ring magnet (11).

Beneficial effects: (1) The present invention can make the size of the capsule head more compact by arranging the tool channel tube through the central area of the ring magnet, and only wrap the tool channel tube, water/air pipe and cables through the channel sealing tube, The diameter of the channel sealing tube is much smaller than the intubation endoscope of the prior art, and the channel sealing tube, water/air pipe and tool channel tube are all soft tubes, so the small-sized capsule head and the soft small The diameter channel sealing tube will not cause strong pain when it moves in the human body; and through the provided tool channel, tiny surgical instruments can enter the tool channel tube and then enter the human body to complete the operation of biopsy tissue sampling.

(2) The present invention realizes the positioning and motion control of the head shell through the cooperation of the ring magnet and the external large magnet, so that it can move along the set path and realize painless and all-round control observation.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the present invention;

Fig. 2 is a perspective view of the head shell of Embodiment 1 of the present invention;

Fig. 3 is a schematic diagram of the cylindrical structure of the head shell in Embodiment 1 of the present invention;

4 is a schematic diagram of the frustum-shaped structure of the head shell in Embodiment 1 of the present invention;

Fig. 5 is a schematic structural view of the head shell of Embodiment 1 of the present invention;

Fig. 6 is a sectional view of the head shell of Embodiment 1 of the present invention;

7 is a schematic structural view of the connector of Example 1 of the present invention;

Fig. 8 is a perspective view of the connecting body of Embodiment 1 of the present invention;

Fig. 9 is a semi-cylindrical structural diagram of the head shell in Embodiment 2 of the present invention;

Among them, 1-capsule head, 2-channel sealing tube, 3-connector, 4-head shell, 5-camera sealing end cover, 6-water/air nozzle, 7-cylindrical structure, 8-round table shape structure, 9-semi-cylindrical structure, 11-ring magnet, 12-tool channel tube, 13-camera module, 14-cable, 16-water/air pipe, 19-tool channel interface, 20-suction interface, 21-water /air interface, 22-cable interface.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Example 1:

This embodiment provides a small-diameter endoscope driven by an external magnet, see accompanying drawings 1-8, including: a capsule head 1, a channel sealing tube 2, a connecting body 3, a cable 14, and a water/air tube 16 and the tool channel tube 12;

Referring to accompanying drawings 2-4, the capsule head 1 includes: a head sealing tube, a head housing 4, a ring magnet 11, a camera module 13, a camera sealing end cap 5 and a water/air nozzle 6;

The head shell 4 is composed of a cylindrical structure 7 and a conical structure 8 docked thereto. Both the cylindrical structure 7 and the conical structure 8 are split structures, that is, the cylindrical structure 7 consists of two semicircular structures. Cylinders are butted to form, and the conical structure 8 is formed by the butt joint of two semicircular truncated cylinders, and the split structure is convenient for installing internal components; the inside of the cylindrical structure 7 is processed with an annular blind hole coaxial with it (thereby the cylindrical The shape structure 7 is divided into a shell and an inner central cylinder), the annular blind hole is used to install the ring magnet 11, and three axial through holes are processed on the central cylinder of the cylindrical structure 7, wherein the first axial through hole is used for The camera module 13 and the cable 14 connected thereto are installed, the second axial through hole is used for installing the water/air pipe 16, and the third axial through hole is used for installing the tool channel pipe 12; A through hole corresponding to the axial through hole is respectively a first through hole communicated with the first axial through hole, a second through hole communicated with the second axial through hole and a third axial through hole communicated A third through hole connected with the holes;

Referring to accompanying drawings 7 and 8, the connecting body 3 is respectively provided with a tool channel interface 19, a suction interface 20, a water/air interface 21 and a cable interface 22, and its interior is respectively provided with a channel corresponding to the above interface; and the tool The channel interface 19 and the suction interface 20 share a channel, and the three channels are independent of each other; the suction interface 20 is equipped with an aspirator;

Both the head sealing tube and the channel sealing tube 2 are made of medical polymer materials that are non-toxic and harmless to the human body and will not release toxic substances or gases, and the channel sealing tube 2 is a soft tube;

The water/air pipe 16 and the tool passage pipe 12 are soft pipes;

A light source for lighting is integrated in the camera module 13;

The overall connection relationship is as follows: referring to accompanying drawings 2, 5 and 6, the ring magnet 11 is installed in the ring blind hole of the cylindrical structure 7 of the head housing 4; the ring magnet 11 is used to cooperate with the external large magnet, Realize the positioning and motion control of the head shell 4;

The camera module 13 is installed in the first axial through hole of the cylindrical structure 7 of the head housing 4. After one end of the cable 14 passes through the first through hole of the conical structure 8, it connects with the first through hole located in the cylindrical structure 7. A camera module 13 in the axial through hole is connected, and the other end passes through the cable interface 22 of the connecting body 3 and is connected to an external power supply and image processing device. The camera module 13 is used to take or record information in the human body , and transmit to the external image processing device through the cable 14 to realize the collection of pictures and videos of the camera module 13, and the external power supply supplies power to the camera module 13 through the cable 14; and the lens of the camera module 13 is installed with Transparent camera sealing end cap 5 realizes the protection to lens;

After one end of the water/air pipe 16 passes through the second through hole of the conical structure 8, it is fixed in the second axial through hole of the cylindrical structure 7 of the head housing 4 by bonding, and the end is equipped with a protruding The water/air nozzle 6 on the end face of the head housing 4, the other end of the water/air pipe 16 passes through the water/air interface 21 of the connecting body 3, and is connected with the external water/air device to realize the water/air nozzle 6 Water/air; the water/air sprayed by the water/air nozzle 6 is used to flush the camera sealing end cap 5 installed on the lens of the camera module 13, so as to improve the shooting effect of the camera module 13;

One end of the tool channel pipe 12 is installed in the third axial through hole of the cylindrical structure 7 of the head shell 4 after passing through the third through hole of the conical structure 8, and the other end is connected to the tool channel interface of the connecting body 3 19 is connected with the shared channel of suction interface 20; tool channel pipe 12 is used to provide the moving channel of microsurgical instrument (the microsurgical instrument comprises: disposable biopsy sampling tool, disposable endoscopic liquid delivery tube, disposable electric snare and disposable high-frequency incision knife), microsurgical instruments enter the endoscope through the tool channel interface 19 and then enter the human body to complete sampling, spraying and microsurgical operations; the tool channel tube 12 is also used to provide The dirt and the water/air sprayed by the water/air nozzle 6 are attracted to the suction channel outside the human body by the suction device on the suction interface 20. When the suction device works, the tool channel interface 19 is sealed;

Wherein, the tool channel pipe 12, the water/air pipe 16 and the cable 14 are all located inside the ring magnet 11;

The head sealing tube is wrapped on the outside of the head housing 4 to seal the head housing 4, and does not seal the camera sealing end cover 5, water/air nozzle 6 and tool channel tube 12; channel sealing tube 2 packs Covering the outside of the tool passage pipe 12, water/air pipe 16 and cable 14 between the head shell 4 and the connecting body 3, the two ends of the passage sealing pipe 2 are fixedly connected to the head sealing pipe and the connecting body 3 respectively;

During installation, the camera module 13, the water/air pipe 16 and the tool channel pipe 12 are first installed in the two semicircular cylinders of the cylindrical structure 7, and then the two semicircular cylinders are butted to form the cylindrical structure 7, Then the ring magnet 11 is set in the annular blind hole of the cylindrical structure 7, and finally the cylindrical structure 7 is docked with the conical structure 8; otherwise, the ring magnet 11 cannot be installed in the annular blind hole of the cylindrical structure 7.

Working principle: the head casing 4 covered by the head sealing tube forms a capsule head. When the human body needs to be checked, the capsule head is inserted into the human body, and the passage sealing tube 2 connected to it is also driven Insert it into the human body to inspect the large and small intestines; because the diameters of the tool channel tube 12, water/air tube 16 and cable 14 wrapped by the channel sealing tube 2 are much smaller than the intubation endoscope of the prior art, therefore, when inserting The process will not bring strong pain to the patient;

After the capsule-shaped head enters the human body, the camera module 13 starts to work, and transmits the information in the human body through the cable 14 in the form of pictures or videos. The water/air sprayed by the water/air nozzle 6 washes the camera sealing end cover 5 on the lens of the camera module 13;

The water/air sprayed by the water/air nozzle 6 and the dirt that blocks the pipeline formed by the tool channel pipe 12 in the process of being inserted into the human body are sucked to the outside of the human body by the suction device on the suction interface 20 after the tool channel interface 19 is sealed. ;

The movement of the capsule-shaped head is coordinated with the ring magnet 11 in the head shell 4 through the external large magnet to realize the positioning and motion control of the head shell 4, so that it moves along the set path;

When the capsule head moves to the set position, the tiny surgical instrument enters the tool channel tube 12 through the tool channel interface 19 and then enters the human body to complete sampling, spraying and other micro surgical operations.

Example 2:

Present embodiment: provide another kind of small-diameter endoscope driven based on external magnets, except that the structure of the head housing 4 is different, all the other parts and the connection relationship are the same;

In this embodiment, the head shell 4 is composed of two semi-cylindrical structures 9 docked. Referring to accompanying drawing 9, the head shell 4 is processed with a cylindrical cavity closed at both ends for installing the ring magnet 11. The head Three axial through holes are respectively processed in the housing 4, wherein the axial through holes for installing the tool channel pipe 12 pass through the central hole of the ring magnet 11, and are respectively used for installing the water/air pipe 16 and the two cables 14. An axial through hole is located on the outside of the ring magnet 11;

During installation, the ring magnet 11 is first installed in a semi-cylindrical structure 9 of the head housing 4, and then the camera module 13, the water/air pipe 16 and the tool channel pipe 12 are installed in the two semi-cylindrical structures 9, and then the The two semi-cylindrical structures 9 are internally butted; otherwise, the ring magnet 11 cannot be installed in the closed cylindrical cavity at both ends of the head shell 4 .

To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. A small-diameter endoscope driven by an external magnet, characterized in that it comprises: a capsule-shaped head (1), a channel sealing tube (2), a connecting body (3), cables (14) and tools Channel pipe (12); The capsule head (1) includes: a head sealing tube, a head housing (4), a ring magnet (11) and a camera module (13) integrated with a light source; The connecting body (3) is respectively provided with a tool channel interface (19), a suction interface (20) and a cable interface (22), and its interior is respectively provided with a channel corresponding to the above interface; and the tool channel interface (19) It is a shared channel with the suction interface (20), and a suction device is installed on the suction interface (20); The overall connection relationship is as follows: the ring magnet (11) is installed in the head housing (4), and the axis of the ring magnet (11) coincides with or is parallel to the axis of the head housing (4), and is used to communicate with the external large magnet. Cooperate to realize the positioning and motion control of the head shell (4); The camera module (13) is installed in the through hole of the head housing (4), and one end of the cable (14) is connected to the camera module (13), and the other end passes through the cable interface (22) of the connecting body (3) After that, connect with external power supply and image processing device; One end of the tool channel pipe (12) is installed in the through hole of the head housing (1), and the other end is connected with the common channel of the tool channel interface (19) of the connecting body (3) and the suction interface (20); and the tool The channel pipe (12) is located in the annular space of the ring magnet (11); The head sealing tube is coated on the outside of the head housing (4), and does not seal the lens of the tool channel tube (12) and the camera module (13); the channel sealing tube (2) is coated on the head housing (4) The tool channel tube (12) and the outside of the cable (14) between the connector (3), and the two ends of the channel sealing tube (2) are fixedly connected to the head sealing tube (1) and the connector (3) respectively . 2. a kind of small diameter endoscope driven based on external magnets as claimed in claim 1, is characterized in that, also comprises water/trachea (16); The connecting body (3) is also provided with a water/air interface (21); One end of the water/air pipe (16) is fixed in the through hole of the head housing (4), and this end is equipped with a water/air nozzle (6) stretching out from the end face of the head housing (4). After passing through the water/air interface (21) of the connecting body (3), one end is connected with the external water/air delivery device; and the water/air pipe (16) is wrapped in the channel sealing pipe (2). 3. A kind of small diameter endoscope based on external magnet drive as claimed in claim 1, is characterized in that, also comprises camera sealing end cap (5), and camera sealing end cap (5) adopts transparent material to make, Be installed on the lens of camera module (13). 4. A small-diameter endoscope driven by an external magnet as claimed in claim 1, wherein the head sealing tube and the channel sealing tube (2) are both made of polymer materials. 5 . The small-diameter endoscope driven by an external magnet according to claim 1 , wherein the head housing ( 4 ) adopts a split structure. 6 . 6. a kind of small diameter endoscope driven based on external magnets as claimed in claim 2, is characterized in that, described passage seal pipe (2), water/air pipe (16) and tool passage pipe (12) all For soft tube. 7. A kind of small-diameter endoscope driven based on external magnets as claimed in claim 5, characterized in that, the head housing (4) consists of a cylindrical structure (7) and a conical structure abutted thereto (8) form, described cylindrical structure (7) is formed by the butt joint of two semicircular cylinders, and circular truncated structure (8) is formed by the butt joint of two semicircular truncated cylinders; The internal processing of cylindrical structure (7) has The annular blind hole coaxial with it divides the cylindrical structure (7) into the shell and the inner central cylinder. The annular blind hole is used to install the annular magnet (11), and the central cylinder of the cylindrical structure (7) is processed with three Axial through holes, wherein the first axial through hole is used to install the camera module (13) and the cable (14) connected thereto, the second axial through hole is used to install the water/air pipe (16), the third axial through hole The through hole is used to install the tool channel pipe (12); the inside of the frustum-shaped structure (8) is respectively processed with three through holes corresponding to the axial through holes, which are respectively communicated with the first axial through hole. The first through hole, the second through hole communicated with the second axial through hole and the third through hole communicated with the third axial through hole. 8. A kind of small-diameter endoscope driven by an external magnet as claimed in claim 5, characterized in that, the head housing (4) is composed of two semi-cylindrical structures (9) docked, and the head The shell (4) is processed with a cylindrical cavity with both ends closed for installing the ring magnet (11), and the head shell (4) is respectively machined with three axial through holes, which are used to install the tool passage tube ( The axial through hole of 12) passes through the central hole of the ring magnet (11), and the two axial through holes for installing the water/gas pipe (16) and the cable (14) respectively are positioned at the outside of the ring magnet (11).