CN109394304B - Bendable broken absorber - Google Patents
Bendable broken absorber Download PDFInfo
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- CN109394304B CN109394304B CN201710708975.3A CN201710708975A CN109394304B CN 109394304 B CN109394304 B CN 109394304B CN 201710708975 A CN201710708975 A CN 201710708975A CN 109394304 B CN109394304 B CN 109394304B
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 210000001503 joint Anatomy 0.000 claims abstract description 22
- 238000005452 bending Methods 0.000 claims description 31
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000003032 molecular docking Methods 0.000 description 17
- 208000007536 Thrombosis Diseases 0.000 description 7
- 238000001356 surgical procedure Methods 0.000 description 6
- 206010059491 Intracranial haematoma Diseases 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 208000034158 bleeding Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000732 tissue residue Toxicity 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for with a guide wire
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for with suction of debris
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention provides a bendable crushed absorber, which comprises a motor, a cutter head and a control assembly, wherein the crushed absorber further comprises a bendable front pipe; a liquid inlet channel is arranged in the rotating shaft, a second stop block is arranged in the liquid inlet channel, and a liquid outlet communicated with the liquid inlet channel is arranged on the side surface of the rotating shaft; the crushed absorber further comprises a butt joint channel for butt joint of external suction equipment, and the butt joint channel is communicated with the liquid outlet. The implementation of the invention has the following main beneficial effects: the front pipe can be bent, so that the range of the cutter head capable of being hinged is enlarged, and residues can be removed from dead corner positions; the suction adjusting holes are designed, so that the suction of the first end of the front pipe can be conveniently adjusted according to actual needs at any time in the using process of the crushing absorber; for the situation that human tissues which are reamed by the cutter head in the front tube can be reamed, the first stop block and the second stop block are helpful for reaping the reamed tissues, so that the reamed suction process is smoother.
Description
Technical Field
The invention relates to the technical field of medical appliances, in particular to a bendable crushed absorber.
Background
Most of the suction crushers in the prior art have a hard structure in the front end suction pipeline, cannot be bent, and limit the degree of freedom of operation. In surgery, a rigid aspiration device cannot remove tissue residues at dead corners: for example, in the case of sinus polypectomy, rigid crushed aspirators often fail to remove residue at dead corners due to limited space available; in joint-related surgery, rigid debris aspiration devices cannot clear tissue at certain angles due to the particular configuration of the joint. Particularly in the intracranial hematoma removal operation, the traditional broken aspirator cannot avoid intracranial blood vessels because a pipeline sucked at the front end cannot be bent, and brings great operation difficulty to the operation.
Particularly for intracranial hematoma removal surgery, there is no aspiration device available in the market today that is suitable for intracranial hematoma removal surgery. In the existing operation, a simple aspirator is usually used for directly sucking blood clots, and when the blood clots with relatively tough textures are encountered, a method of cutting the blood clots by scissors and then sucking the blood clots is adopted, so that the operation is very troublesome, and the operation time is greatly prolonged. There are also methods of dividing the clot directly by a hard tear, which are very rough and very likely to cause secondary bleeding during the tear, with the risk of the patient. In addition, the sucked blood clot is often blocked in the suction pipeline and can be used after being dredged, and inconvenience is brought to the operation.
Finally, the existing broken suction operation generally includes that blood clots are sucked into a broken suction device, then are hinged in the broken suction device, and finally are discharged, so that the situation that the suction opening is blocked by the blood clots can be encountered, and the operation is burdened.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the broken suction device which can realize bending at the front section of the suction pipeline and avoid the situation that human tissues are blocked in the pipeline in the broken suction process as much as possible.
In order to solve the technical problems, the invention discloses a bendable crushed absorber, and the technical scheme of the invention is implemented as follows:
a bendable cutter absorber comprising a motor, a cutter head and a driving assembly, wherein the motor drives the cutter head to rotate through the driving assembly, and the driving assembly comprises a flexible shaft and a rotating shaft; the tool bit is driven by the flexible shaft; the flexible shaft is driven by the rotating shaft; the rotating shaft is driven by the motor; the crushed absorber further comprises a bendable front pipe; the first end of the front tube is provided with a concave part for accommodating the cutter head; a liquid inlet channel is arranged in the rotating shaft, a second stop block is arranged in the liquid inlet channel, and a liquid outlet communicated with the liquid inlet channel is arranged on the side surface of the rotating shaft; the crushed absorber further comprises a butt joint channel for butt joint of external suction equipment, and the butt joint channel is communicated with the liquid outlet.
Preferably, the crushed absorber further comprises a rotatable front end support located within the front tube first end; the front end support includes a first stop, and the flexible shaft is supported by the first stop.
Preferably, the front end support member is columnar, the number of the first stop blocks is multiple, one end of each first stop block is connected with the flexible shaft, and the other end of each first stop block is connected with the side face of the front end support member.
Preferably, the crushing absorber further comprises a shell, wherein a suction adjusting hole is formed in the shell, and the suction adjusting hole is communicated with the butt joint channel.
Preferably, the crushed absorber further comprises a direction control knob which can rotate relative to the shell, and the butt joint channel is arranged in the direction control knob; the first end of the direction control knob is connected with the second end of the front tube, and the second end of the direction control knob is connected with the shell; the liquid inlet channel of the rotating shaft is positioned in the direction control knob.
Preferably, the crushed absorber further comprises a traction wire and a bending control knob encircling the outer side of the first end of the direction control knob; the bend control knob is rotatable about the directional control knob first end; the front pipe further comprises a transverse through hole, and the transverse through hole is arranged along the length direction of the front pipe; the first ends of the bending control knob and the direction control knob are respectively provided with a first radial through hole and a second radial through hole in the radial direction; the traction wire sequentially passes through the first radial through hole, the second radial through hole and the transverse through hole and is fixed on the first end of the front tube.
Preferably, the number of the transverse through holes is two, one is arranged at the upper part of the front pipe, and the other is arranged at the lower part of the front pipe; the number of the first radial through holes is two, and the first radial through holes are arranged at the upper part of the bending control knob and at the lower part of the bending control knob corresponding to the transverse through holes; the number of the second radial through holes is two, and the second radial through holes are correspondingly communicated with the two first radial through holes respectively.
Preferably, the crushed absorber further comprises an annular connection provided between the directional control knob and the housing; the annular connecting piece comprises an inner convex ring and an outer convex ring which are coaxial; an annular groove is formed between the inner convex ring and the outer convex ring; the annular groove is communicated with the butt joint channel; the outer convex ring is provided with a vent hole for communicating the annular groove with the suction adjusting hole; the annular connecting piece further comprises a butt joint through hole used for communicating the annular groove with the outside.
Preferably, the crushed absorber further comprises an inner gasket and an outer gasket; the second end of the direction control knob is provided with an inner groove and an outer groove; the inner gasket is positioned in the inner groove, and the outer gasket is positioned in the outer groove; the inner gasket is propped against the inner convex ring; the outer gasket is propped against the outer convex ring.
Preferably, the recess includes an arcuate stop located in front of the cutter head.
The implementation of the invention has the following main beneficial effects:
1. the front tube is bendable, so that the degree of freedom of operation is improved, the range of the cutter head capable of being hinged is enlarged, and residues at dead angle positions are removed;
2. the suction adjusting holes are designed, so that the suction of the first end of the front pipe can be conveniently adjusted according to actual needs at any time in the using process of the crushing absorber;
3. the first stop block can avoid blockage caused by that some insufficiently reamed human tissues are directly sucked into the front tube by rotating;
4. for the situation that the human tissues which are reamed by the cutter head in the front tube can be reamed, the second stop block is helpful to reamed the reamed tissues, so that the reamed suction process is smoother.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a crushed aspirator with directional control knob and bend control knob in one embodiment;
FIG. 2 is a schematic cross-sectional view of the crushed suction device shown in FIG. 1 in one embodiment;
FIG. 3 is a schematic cross-sectional view of a directional control knob and a bending control knob in one embodiment;
FIG. 4 is a schematic view of the structure of an annular connector in one embodiment;
FIG. 5 is a schematic view showing a structure of a rotary shaft in one embodiment;
FIG. 6 is a schematic view of the front end support mated with a tool bit in one embodiment;
FIG. 7 is a schematic view of some conventional configurations of a tool tip according to one embodiment;
FIG. 8 is a schematic diagram of an arrangement of traction wires according to an embodiment;
FIG. 9 is a schematic cross-sectional view of a bend control knob and a lateral through hole in one embodiment;
FIG. 10 is an enlarged schematic view of structural details of the end of the traction wire in one embodiment;
fig. 11 is a schematic view of a structure of a crushed absorber in one embodiment.
In the above drawings, each reference numeral indicates:
11-a motor, 111-a power cord, 12-a cutter head, 13-a flexible shaft,
14-a rotating shaft, 141-a rear end supporting piece, 142-a liquid outlet, 143-a second stop,
15-front end support, 151-first stop,
2-front tube, 21-front tube first end, 211-concave part, 212-arc stop, 22-front tube second end, 23-transverse through hole,
3-a shell, 31-a suction adjusting hole, 32-a rear cover,
4-directional control knob, 41-directional control knob first end, 42-directional control knob second end, 43-second radial through hole, 44-docking channel,
5-a pull wire, wherein the pull wire is connected with the pull wire,
6-bending control knob, 61-first radial through hole,
7-annular connecting piece, 71-inner convex ring, 72-outer convex ring, 73-annular groove, 74-vent hole, 75-butt joint through hole,
81-inner gasket, 82-outer gasket,
9-rear tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
A flexible suction breaker (in some embodiments, see fig. 1-11) comprising a motor 11, a cutter head 12, and a drive assembly by which the motor 11 drives the cutter head 12 in rotation, the drive assembly comprising a flexible shaft 13 and a rotary shaft 14; the cutter head 12 is driven by the flexible shaft 13; the flexible shaft 13 is driven by the rotation shaft 14; the rotation shaft 14 is driven by the motor 11; the crushed absorber also comprises a bendable front pipe 2; the front tube first end 21 is provided with a recess 211 for accommodating the cutter head 12; a liquid inlet channel is arranged in the rotating shaft 14, a second stop block 143 is arranged in the liquid inlet channel, and a liquid outlet 142 communicated with the liquid inlet channel is arranged on the side surface of the rotating shaft 14; the crushed aspirator further comprises a docking channel 44 for docking an external suction device, and the docking channel 44 is communicated with the liquid outlet 142.
As will be appreciated by those skilled in the art, the suction clip of the present invention, because the front tube 2 is flexible, in some embodiments, may be adapted to bend in conjunction with other surgical instruments, such as may extend into the tube of a flexible endoscope, through which bending of the tube of the endoscope may be effected, thereby effecting bending of the front tube 2; in other embodiments, the traction wire 5 is embedded in the front tube 2 in a more active manner, such as the structure shown in fig. 8 and 10, and the front tube 2 is bent by traction of the traction wire 5; of course, other structures disclosed in the prior art that can achieve bending may be employed for the front tube 2.
The front pipe 2 may be a steel pipe or may be made of other materials, and the structure thereof may be changed by those skilled in the art in practical applications, and is not particularly limited herein.
The main function of the cutter head 12 is to cut the target object by rotation, the shape and the structure of the cutter head can be multiple, and fig. 7 shows 3 structures (1, cutter head with spiral cutter edge; 2, annular cutter head with blade shape; 3, cutter head with ladder-shaped side surface and hollow round hole in front view) disclosed by the invention.
The foregoing "driving" includes both the case of direct contact and the case of indirect contact, for example, the flexible shaft 13 is driven by the rotating shaft 14, or may be driven by direct contact between the rotating shaft 14 and the flexible shaft 13, or may be driven by some transmission components between the rotating shaft 14 and the flexible shaft 13, so as to implement driving, and those skilled in the art will understand that the driving manners in the mechanical field are various, and these existing technologies may be referred to in the implementation of the present invention.
When the crushed absorber works, the crushed absorber is generally required to be in butt joint with an external negative pressure system (namely external suction equipment), and in some embodiments, a rear pipe 9 is arranged in the crushed absorber, and thus, the crushed absorber is in butt joint with an extraction opening of the external negative pressure system. During operation, the cutter head 12 rotates to further ream human tissues, and meanwhile, the negative pressure system works to enable the reamed human tissues to sequentially reach the rear tube 9 from the inside of the front tube 2, the liquid inlet channel and the butt joint channel 44, and finally, the reamed human tissues are extracted from the cutter absorber by the negative pressure system.
Fig. 1 and 2 show that in some embodiments, the motor 11 may be connected to a power source via a power cord 111, the rear cover 32 being part of the housing 3.
In the rotating process (fig. 5 shows one of the structures), the second stop block 143 also rotates along with the rotating shaft 14, so that the human tissue conveyed from the front tube 2 can be crushed again, and the internal blockage of the crushing absorber is avoided. The number of the second stoppers 143 may be one or plural, and when the number is plural, the fluid passages may be partitioned into plural. Those skilled in the art will appreciate that the shape, length, width, and thickness of the second stop 143 may vary widely. The number of fluid outlets 142, in some cases, may be consistent with the number of fluid channels that are separated.
In some preferred embodiments, the crushed absorber further comprises a rotatable front end support 15 located within the front tube first end 21; the front end support 15 includes a first stopper 151, and the flexible shaft 13 is supported by the first stopper 151. The number of the first stoppers 151 may be one or more, and the number of the front end supports 15 may be one or more.
In some preferred embodiments, the front end support 15 is in a column shape, the number of the first stoppers 151 is plural, and one end of each first stopper 151 is connected to the flexible shaft 13, and the other end is connected to the front end support 15. The main function of the front support 15 is to break up the body tissue by rotation, avoiding the situation of some large volumes of body tissue entering directly (or without being sufficiently reamed by the cutter head 12) into the front tube 2, thus causing a blockage. Thus, the front support 15 may have a variety of configurations, one of which may be seen in FIG. 6, in which the front support 15 includes a cylindrical side and an internal trifurcated structure, with the flexible shaft 13 being coaxial with the cylindrical side. Such a structure is advantageous in maintaining balance upon rotation and also preventing the inflow of unagglomerated human tissue from between the support 15 and the inner wall of the anterior tube 2. In this embodiment, the front end support 15 functions both to coaxially support the flexible shaft 13 and to hinge.
In some embodiments, the shape and configuration of the rear end support 141 is consistent with the front end support 15.
In some preferred embodiments, the shredder further includes a housing 3, and a suction adjusting hole 31 is formed on the housing 3, and the suction adjusting hole 31 communicates with the docking channel 44. The suction adjusting hole 31 has a main function of dispersing suction applied from an external negative pressure system to the front pipe 2 by providing a fork. During the use process of the crushed absorber, part of air can flow in from the outside through manually covering the suction adjusting hole 31 so as to realize the adjustment of the suction generated by the first end 21 of the front pipe; in some cases, the suction force can be adjusted by blocking part of the suction force adjusting holes 31 by a sliding device arranged inside the shredder. The suction adjusting hole 31 may be in communication with the docking channel 44, either directly or indirectly, and in some embodiments, the position and structure of the suction adjusting hole 31 may be understood with reference to fig. 1, 2, and 11.
Referring to fig. 1, 2 and 3, in some preferred embodiments, the shredder includes a directional control knob 4 rotatable relative to the housing 3, and the docking channel 44 is formed in the directional control knob 4; a first end 41 of the directional control knob is connected with the second end 22 of the front tube, and a second end 42 of the directional control knob is connected with the shell 3; the liquid inlet channel of the rotating shaft 14 is positioned in the direction control knob 4.
The main function of the direction control knob 4 is to control the front tube 2 to rotate around the axis of the front tube, so as to change the lateral direction of the cutter head 12 (namely, change the lateral direction of the opening of the concave part 211), thereby enabling the operation to be more flexible. The liquid inlet channel of the rotating shaft 14 is positioned in the direction control knob 4, so as to facilitate the docking with the docking channel 44. Of course, in other cases, the docking channel 44 may be open out of the directional control knob 4, where it is not deployed.
In some preferred embodiments, the clip aspirator further comprises a pull wire 5, and a bend control knob 6 that is looped outside of the directional control knob first end 41; the bending control knob 6 is rotatable about the directional control knob first end 41; the front pipe 2 further comprises a transverse through hole 23, and the transverse through hole 23 is arranged along the length direction of the front pipe 2; the bending control knob 6 and the direction control knob first end 41 are respectively provided with a first radial through hole 61 and a second radial through hole 43 in the radial direction; the traction wire 5 passes through the first radial through hole 61, the second radial through hole 43, the transverse through hole 23 in this order, and is fixed to the front tube first end 21.
Typically, the wiring of the traction wire 5 can be referred to fig. 8 and 10. The primary function of the bend control knob 6 is to control the bending of the front tube first end 21 such that the front tube first end 21 is offset from its axis, allowing the aspiration device a higher degree of freedom during the surgical procedure. The traction wire 5 is fixed on the front tube first end 21, which means various fixing modes such as clamping, bonding, binding and the like, and the person skilled in the art can flexibly select according to practical application. The bending control knob 6 is rotated to apply a pulling force to the pulling wire 5 fixed at the first end 21 of the front tube, and the first end 21 of the front tube is pulled away from the original position due to the pulling of the pulling wire 5 in the transverse through hole 23 due to the bending of the front tube, and at this time, the front end supporting member 15 is biased away from the axial center due to the pressure of the first end 21 of the front tube, and the flexible shaft 13 is also bent accordingly. The figures only show some ways of arranging the traction wires 5, and the person skilled in the art can also refer to other prior art for designing the components of this part.
In some embodiments, the traction wire 5 may be mounted on a single side of the front tube 2, with a first end fixed to the front tube first end 21 and a second end fixed to the bending control knob 6, and when the bending control knob 6 is rotated, the second end of the traction wire 5 is rotated, and the second end of the traction wire 5 will pull the first end, thereby effecting bending of the front tube first end 21.
In some preferred embodiments, as shown in fig. 8, 9 and 10, the number of the transverse through holes 23 is two, one is disposed at the upper portion of the front tube 2, and the other is disposed at the lower portion of the front tube 2; the number of the first radial through holes 61 is two, and corresponding to the transverse through holes 23, one first radial through hole 61 is arranged at the upper part of the bending control knob 6, and the other first radial through hole 61 is arranged at the lower part of the bending control knob 6; the number of the second radial through holes 43 is two, and the second radial through holes 43 are respectively and correspondingly communicated with the two first radial through holes 61. The terms "upper" and "lower" are used in this paragraph primarily to denote relative positions and not to denote absolute directions in a real environment. As can be appreciated with reference to fig. 10, when the front tube 2 is placed horizontally, the opening of the concave portion 211 is upward, and at this time, two traction wires 5 extend in the longitudinal direction of the long tube 2, one below and one above. The bending control knob 6 can be designed by a person skilled in the art with reference to other prior arts, so that when the bending control knob 6 is rotated in one direction (positive direction), the traction wire 5 located above is pulled, thereby realizing upward bending of the front tube 2; when the bending control knob 6 is rotated in the other direction (reverse direction), the traction wire 5 located below is pulled, thereby effecting bending of the front tube 2 downward.
In some preferred embodiments, with reference to fig. 1, 2, 3, 4, the fragment aspirator further comprises an annular connection 7 provided between the directional control knob 4 and the housing 3; the annular connecting piece 7 comprises an inner convex ring 71 and an outer convex ring 72 which are coaxial; an annular groove 73 is formed between the inner convex ring 71 and the outer convex ring 72; the annular groove 73 communicates with the docking channel 44; the outer convex ring 72 is provided with a vent 74 for communicating the annular groove 73 with the suction adjusting hole 31; the annular connector 7 further comprises a docking through hole 75 for communicating the annular groove 73 with the outside. The annular connection 7 provides a buffer cavity (i.e. annular groove 73) for pressure regulation, a fixed outflow opening (i.e. a docking through hole 74) for the outflow of the reamed human tissue, and solves the problem of the position change of the docking channel 44 caused by the rotation of the control knob 4 (no matter which position the docking channel 44 is rotated to, the annular groove 73 can always be communicated with the docking channel 44). The docking through hole 75 is used for communicating the annular groove 73 with the outside, and in some cases can be directly communicated with an air suction pipe of the negative pressure system, and in some cases can be connected with the negative pressure system through the rear pipe 9.
In some preferred embodiments, referring to fig. 3 and 4, the crushed absorber further comprises an inner gasket 81 and an outer gasket 82; the direction control knob second end 42 is provided with an inner groove and an outer groove; the inner gasket 81 is positioned in the inner groove, and the outer gasket 82 is positioned in the outer groove; the inner gasket 81 abuts against the inner convex ring 71; the outer washer 82 abuts the outer collar 72. The inner gasket 81 and the outer gasket 82 mainly function as a seal.
In some preferred embodiments, referring to fig. 10, the recess 211 includes an arcuate stop 212 located in front of the tool tip 12. One of the functions of the recess 211 is to partially accommodate the tool bit 12, to avoid the tool bit 12 being completely exposed and accidentally injuring other tissues that do not need to be reamed during surgery, and the arcuate stop 212 prevents the tool bit 12 from directly touching unnecessary human tissue when advanced.
In some embodiments, the connection between the above-mentioned components of the cartridge (e.g. the front tube 2, the housing 3, the directional control knob 4, the bending control knob 6) is in the form of a detachable connection, which has the advantage of facilitating the replacement of the components and the separate cleaning.
Finally, it should be pointed out that the invention can be used as a general hard crushed absorber in the operation occasion without bending; the invention can be placed in the instrument channel of the endoscope by changing the size of each part of the crushed absorber and matched with the endoscope for use; in a flexible endoscope, the flexible endoscope can be passively bent and used together with the endoscope. These advantages make the invention have wide application prospect.
The various embodiments listed above may be implemented in combination with each other without contradiction, and a person skilled in the art may combine technical features of different embodiments with reference to the figures and the explanation of the embodiments above.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A flexible suction cup, includes motor, tool bit and drive assembly, the motor passes through drive assembly drives the tool bit is rotatory, its characterized in that: the drive assembly includes a flexible shaft and a rotating shaft; the tool bit is driven by the flexible shaft; the flexible shaft is driven by the rotating shaft; the rotating shaft is driven by the motor; the crushed absorber further comprises a bendable front pipe; the first end of the front tube is provided with a concave part for accommodating the cutter head; a liquid inlet channel is arranged in the rotating shaft, a second stop block is arranged in the liquid inlet channel, and a liquid outlet communicated with the liquid inlet channel is arranged on the side surface of the rotating shaft; the crushed absorber further comprises a butt joint channel for butt joint of external suction equipment, and the butt joint channel is communicated with the liquid outlet; the crushed absorber further comprises a rotatable front end support positioned in the front pipe first end; the front end support comprises a first stop, and the flexible shaft is supported by the first stop; the broken absorber further comprises a shell, a suction adjusting hole is formed in the shell, and the suction adjusting hole is communicated with the butt joint channel; the crushing and sucking device also comprises a direction control knob which can rotate relative to the shell, and the butt joint channel is arranged in the direction control knob; the first end of the direction control knob is connected with the second end of the front tube, and the second end of the direction control knob is connected with the shell; the liquid inlet channel of the rotating shaft is positioned in the direction control knob; the crushed absorber further comprises an annular connecting piece arranged between the direction control knob and the shell; the annular connecting piece comprises an inner convex ring and an outer convex ring which are coaxial; an annular groove is formed between the inner convex ring and the outer convex ring; the annular groove is communicated with the butt joint channel; the outer convex ring is provided with a vent hole for communicating the annular groove with the suction adjusting hole; the annular connecting piece further comprises a butt joint through hole, and the butt joint through hole is used for communicating the annular groove with the outside; the recessed portion includes an arcuate stop located in front of the cutter head.
2. The crushed suction device according to claim 1, wherein: the front end support piece is columnar, the number of the first check blocks is multiple, one end of each first check block is connected with the flexible shaft, and the other end of each first check block is connected with the side face of the front end support piece.
3. The crushed suction device according to claim 2, wherein: the broken absorber further comprises a traction wire and a bending control knob which surrounds the outer side of the first end of the direction control knob; the bend control knob is rotatable about the directional control knob first end; the front pipe further comprises a transverse through hole, and the transverse through hole is arranged along the length direction of the front pipe; the first ends of the bending control knob and the direction control knob are respectively provided with a first radial through hole and a second radial through hole in the radial direction; the traction wire sequentially passes through the first radial through hole, the second radial through hole and the transverse through hole and is fixed on the first end of the front tube.
4. A crushed absorber according to claim 3, wherein: the number of the transverse through holes is two, one is arranged at the upper part of the front pipe, and the other is arranged at the lower part of the front pipe; the number of the first radial through holes is two, and the first radial through holes are arranged at the upper part of the bending control knob and at the lower part of the bending control knob corresponding to the transverse through holes; the number of the second radial through holes is two, and the second radial through holes are correspondingly communicated with the two first radial through holes respectively.
5. The crushed suction device according to claim 4, wherein: the crushed absorber further comprises an inner gasket and an outer gasket; the second end of the direction control knob is provided with an inner groove and an outer groove; the inner gasket is positioned in the inner groove, and the outer gasket is positioned in the outer groove; the inner gasket is propped against the inner convex ring; the outer gasket is propped against the outer convex ring.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708975.3A CN109394304B (en) | 2017-08-17 | 2017-08-17 | Bendable broken absorber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708975.3A CN109394304B (en) | 2017-08-17 | 2017-08-17 | Bendable broken absorber |
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| CN109394304A CN109394304A (en) | 2019-03-01 |
| CN109394304B true CN109394304B (en) | 2024-01-26 |
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| CN201710708975.3A Active CN109394304B (en) | 2017-08-17 | 2017-08-17 | Bendable broken absorber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110251203A (en) * | 2019-07-26 | 2019-09-20 | 张建军 | A kind of Flexible ureteroscope sheath external member with rotatable interior sheath |
| CN112663708B (en) * | 2020-12-21 | 2022-09-27 | 国核电站运行服务技术有限公司 | Underwater foreign matter removing equipment |
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| CN109394304A (en) | 2019-03-01 |
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