CN111317523B - Knotter - Google Patents
Knotter Download PDFInfo
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- CN111317523B CN111317523B CN201811528092.5A CN201811528092A CN111317523B CN 111317523 B CN111317523 B CN 111317523B CN 201811528092 A CN201811528092 A CN 201811528092A CN 111317523 B CN111317523 B CN 111317523B
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- 238000004080 punching Methods 0.000 claims abstract description 106
- 238000010008 shearing Methods 0.000 claims abstract description 39
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000009471 action Effects 0.000 description 3
- 238000002324 minimally invasive surgery Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B17/0469—Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
- A61B2017/0496—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials for tensioning sutures
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (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 present invention provides a knotter comprising: a tubular member; the punching shear mechanism is arranged in the tubular piece and comprises a first punching shear piece and a second punching shear piece, an operation cavity is arranged between the first punching shear piece and the second punching shear piece, the operation cavity comprises a punching cavity section and a shearing cavity section, the punching cavity section can accommodate the clamping piece, and a shearing blade is arranged on the inner wall of the shearing cavity section; a transmission member movably disposed in the tubular member, the transmission member being capable of driving at least one of the first and second punching shear members to move so as to open or close the operation chamber; the inner wall of the punch cavity section can squeeze the clamping member in the closing process of the operating cavity so as to deform the clamping member to clamp the suture thread penetrated in the clamping member, and the shearing blade of the shearing cavity section can shear the redundant suture thread outside the clamping member. According to the technical scheme provided by the invention, the problems of inconvenient suture line shearing operation and high manufacturing cost of the knotter in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a knotter.
Background
In recent years, with the development of surgical instruments and cardiac surgical techniques, minimally invasive surgery has become a hotspot for the development of various surgical departments. The minimally invasive surgery has the characteristics of small incision and quick recovery, and simultaneously requires a user to realize simple and quick postoperative suturing and knotting operation in a minimally invasive surgery environment. The knotting method used clinically includes two methods of manual knotting and instrument knotting.
Existing surgical knots typically grip the suture by plastic deformation of a collet or clamp, and then sever the suture by a cutting blade or shear blade. The cutting mode has the defects that: when the cutter is used for cutting, firstly, the cutter is required to have higher sharpness, the cutting edge of the cutter made of common materials is easy to damage, secondly, the suture is required to be in a tight state, the suture is loosened, and the cutter is not easy to cut in the past; when the shearing knife is used, although the loose suture line is not easily cut off by the knife blade, and the sharpness requirement on the knife edge is reduced, the handle of the shearing knife is spread by the elastic piece to keep the knife head part open, and then the handle closes the shearing knife under the extrusion of the conveying rod so as to cut off the suture line. The shearing knife is used for shearing, the requirements on the compression strength and the processing precision of the elastic piece of the handle are high, and the elastic piece can generate the problems of connection looseness and the like.
Disclosure of Invention
The invention provides a knotter, which aims to solve the problems of inconvenient suture line shearing operation and high manufacturing cost of the knotter in the prior art.
In order to solve the above problems, the present invention provides a knotter comprising: a tubular member; the punching shear mechanism is arranged in the tubular piece and comprises a first punching shear piece and a second punching shear piece, an operation cavity is arranged between the first punching shear piece and the second punching shear piece, the operation cavity comprises a punching cavity section and a shearing cavity section, the punching cavity section can accommodate the clamping piece, and a shearing blade is arranged on the inner wall of the shearing cavity section; a transmission member movably disposed in the tubular member, the transmission member being capable of driving at least one of the first and second punching shear members to move so as to open or close the operation chamber; the inner wall of the ram cavity section is capable of pressing the clamping member during closing of the operating cavity to deform the clamping member to clamp a suture threaded in the clamping member, and the cutting edge of the shear cavity section is capable of shearing the suture.
Further, the first punching shear piece and the second punching shear piece are of an integrated structure, and one end, close to the transmission piece, of the first punching shear piece is connected with one end, close to the transmission piece, of the second punching shear piece.
Further, the shearing cavity section is located on one side of the stamping cavity section, which is close to the transmission part, and the shearing blade comprises an upper blade and a lower blade which are matched with each other, wherein the upper blade is located on one of the first stamping part and the second stamping part, and the lower blade is located on the other of the first stamping part and the second stamping part.
Further, the inner wall of the stamping cavity section is provided with a convex tooth and a concave groove which are matched with each other, the convex tooth and the concave groove are used for extruding the clamping piece, wherein the convex tooth is positioned on one of the first punching shear piece and the second punching shear piece, and the concave groove is positioned on the other of the first punching shear piece and the second punching shear piece.
Further, the tubular member has a threading hole through which a suture passing through the clamping member can be threaded, and the cutting blade is used for cutting the suture between the clamping member and the threading hole.
Further, the knotter further comprises: and the wire binding part is arranged on the outer wall of the tubular piece and used for guiding and limiting the suture thread penetrating out of the threading hole.
Further, the wire harness part is sleeved on the tubular member, and the wire harness part is provided with a wire groove arranged along the axial direction of the tubular member, wherein the wire groove is used for guiding and limiting the suture.
Further, the knotter further comprises a clamping piece, the clamping piece is of a tubular structure, a first groove is formed in the side wall of the clamping piece, a second groove is formed in the side wall of the tubular piece, the second groove can correspond to the first groove, and the second groove and the first groove are used for penetrating the suture.
Further, the tubular member is provided with a first positioning hole, the first punching shear member is provided with a second positioning hole, the second positioning hole corresponds to the first positioning hole, the clamping member is provided with a third positioning hole, the third positioning hole can correspond to the second positioning hole, and the first positioning hole, the second positioning hole and the third positioning hole are used for penetrating the positioning pin so as to limit the position of the clamping member in the tubular member.
Further, the first punching shear piece is abutted with the inner wall of the tubular piece, a gap is formed between the second punching shear piece and the inner wall of the tubular piece, the transmission piece can reciprocate in the tubular piece, and the end part of the transmission piece can extend into the gap and be abutted with the second punching shear piece so as to drive the second punching shear piece to move towards the first punching shear piece.
Further, the tubular member has an opening for threading the clamping member, and the size of the gap gradually decreases from the transmission member toward the opening.
Further, the knotter further comprises: and the driving mechanism is used for driving the transmission piece to reciprocate in the tubular piece.
Further, the driving mechanism includes: a handle on which the tubular member is disposed; the trigger is movably arranged on the handle and is provided with an operation end and a driving end, the driving end is in driving connection with the transmission piece, and the operation end can rotate or translate so as to drive the driving end to move.
Further, the operating end has a pressing position and a free position, the operating cavity is closed when the operating end is located at the pressing position, the operating cavity is opened when the operating end is located at the free position, and the driving mechanism further comprises: and one end of the elastic piece is connected with the trigger, the other end of the elastic piece is connected with the handle, and the elastic piece is used for enabling the operation end to recover to a free position.
By applying the technical scheme of the invention, the operation cavity is arranged between the first punching shear part and the second punching shear part of the punching shear mechanism, wherein the inner wall of the punching cavity section is used for extruding the clamping part to deform the clamping part, and the shearing blade on the inner wall of the shearing cavity section is used for shearing the suture, so that the operation cavity can extrude the clamping part through the punching cavity section and can shear the suture through the shearing cavity section in a one-time closing process. By adopting the scheme, the action process when the suture line is sheared is simplified, so that the operation can be simplified, the shearing structure of the knotter is simplified, the manufacturing difficulty is reduced, and the manufacturing cost can be reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 shows a schematic structural view of a knotter provided by an embodiment of the present invention;
FIG. 2 shows a schematic structural view of a punching shear mechanism in the knotter of FIG. 1;
FIG. 3 shows a schematic view of the punching shear mechanism of FIG. 1 prior to pressing the clamping member;
FIG. 4 shows a schematic view of the punching shear mechanism of FIG. 3 after pressing the clamping member;
FIG. 5 shows a top view of FIG. 1;
fig. 6 shows a perspective view of the clamping element of fig. 3.
Wherein the above figures include the following reference numerals:
10. A tubular member; 11. a threading hole; 12. a first positioning hole; 13. a gap; 20. a punching and shearing mechanism; 21. a first punching shear member; 22. a second punching shear member; 23. an operating chamber; 24. a cutting edge; 241. an upper blade; 242. a lower blade; 25. a tooth; 26. a groove; 27. a second positioning hole; 30. a clamping member; 31. a first slot; 32. a third positioning hole; 40. a transmission member; 50. a wire harness section; 51. a wire slot; 60. a driving mechanism; 61. a handle; 62. a trigger; 63. an elastic member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. 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.
As shown in fig. 1 to 6, an embodiment of the present invention provides a knotter comprising: a tubular member 10; the punching shear mechanism 20 is arranged in the tubular member 10, the punching shear mechanism 20 comprises a first punching shear member 21 and a second punching shear member 22, an operation cavity 23 is arranged between the first punching shear member 21 and the second punching shear member 22, the operation cavity 23 comprises a punching cavity section and a shearing cavity section, the punching cavity section can accommodate the clamping member 30, and a shearing blade 24 is arranged on the inner wall of the shearing cavity section; a transmission member 40 movably provided in the tubular member 10, the transmission member 40 being capable of driving at least one of the first and second punching shear members 21 and 22 to move so as to open or close the operation chamber 23; during closing of the operating chamber 23, the inner wall of the punch chamber section can press the clamping member 30 to deform the clamping member 30 to clamp a suture threaded in the clamping member 30, and the cutting edge 24 of the shear chamber section can shear off an excess suture outside the clamping member 30.
By applying the technical scheme of the embodiment, the operation cavity 23 is arranged between the first punching shear piece 21 and the second punching shear piece 22 of the punching shear mechanism 20, wherein the inner wall of the punching cavity section is used for extruding the clamping piece 30 to deform the clamping piece 30, and the shearing blade 24 on the inner wall of the shearing cavity section is used for shearing the suture, so that the operation cavity 23 can extrude the clamping piece 30 through the punching cavity section and can shear the suture through the shearing cavity section in one closing process. By adopting the scheme, the action process of the knotter when cutting the suture is simplified, so that the operation can be simplified, the cutting structure of the knotter is simplified, the manufacturing difficulty is reduced, and the manufacturing cost can be reduced.
In this embodiment, the first punching shear member 21 and the second punching shear member 22 are both of an integral structure, and one end of the first punching shear member 21, which is close to the transmission member 40, is connected to one end of the second punching shear member 22, which is close to the transmission member 40. The first punching shear member 21 and the second punching shear member 22 are provided as an integral structure, which can reduce the number of parts, facilitate the manufacture of the punching shear mechanism 20, and ensure the machining accuracy and reliability. In the present embodiment, the punching shear mechanism 20 may be integrally formed. The punching shear mechanism 20 in this embodiment has a certain elasticity, so that the operation chamber 23 can be automatically restored to the open state by the elasticity after the clamping member 30 is pressed. The integral structure may be a mold molding or a machining molding. In this embodiment, the first punching shear member 21 and the second punching shear member 22 may be provided as separate structures, and the separate structures may be fabricated by welding, punching, riveting, or the like.
As shown in fig. 2, the shear cavity section is located on the side of the punch cavity section adjacent to the drive member 40, and the shear blade 24 includes upper and lower blades 241, 242 that mate with each other, wherein the upper blade 241 is located on one of the first and second punch members 21, 22 and the lower blade 242 is located on the other of the first and second punch members 21, 22. The suture thread can be cut conveniently and quickly by the cooperation of the upper blade 241 and the lower blade 242. In addition, the suture line is not required to be tightened specially during shearing, and the operation is convenient.
Further, the inner wall of the stamping cavity section is provided with a protrusion 25 and a groove 26 which are matched with each other, the protrusion 25 and the groove 26 are used for pressing the clamping piece 30, wherein the protrusion 25 is positioned on one of the first punching shear piece 21 and the second punching shear piece 22, and the groove 26 is positioned on the other of the first punching shear piece 21 and the second punching shear piece 22. As shown in fig. 4, the extruded clamping member 30 is bent and deformed by the cooperation of the teeth 25 and the grooves 26, so that the suture clip can be tightened to improve the reliability of the clamping member 30.
As shown in fig. 3 and 4, the tubular member 10 has a threading hole 11, and a suture thread passing through the clamping member 30 can be threaded through the threading hole 11, and the cutting blade 24 is used to cut the suture thread between the clamping member 30 and the threading hole 11. The threading of the suture is facilitated by the threading aperture 11 to tighten the suture location.
As shown in fig. 1 and 5, the knotter further comprises: the wire harness 50 is provided on the outer wall of the tubular member 10, and the wire harness 50 is used for guiding and restraining the suture thread passing through the threading hole 11. The thread passing through the thread passing hole 11 is guided and restrained by the thread binding portion 50 to prevent the thread from being wound or scattered. Further, the suture thread can be pulled by the wire tying portion 50, and the suture thread can be cut by the cutting edge 24.
Specifically, the wire harness portion 50 is sleeved on the tubular member 10, and the wire harness portion 50 is provided with a wire groove 51 arranged along the axial direction of the tubular member 10, wherein the wire groove 51 is used for guiding and limiting the suture. This allows the suture to be conveniently snapped into the wire groove 51 in the axial direction of the tubular member 10 to guide and retain the suture.
As shown in fig. 6, in the present embodiment, the knotter further includes a clamping member 30, the clamping member 30 has a tubular structure, a first slot 31 is formed on a sidewall of the clamping member 30, a second slot is formed on a sidewall of the tubular member 10, the second slot can correspond to the first slot 31, and the second slot and the first slot 31 are used for threading a suture. Providing the first slot 31 and the second slot facilitates threading the suture into the smaller sized clip 30, which facilitates handling and saves time. The clamping member 30 in this embodiment may be made of a titanium alloy or other metallic material.
As shown in fig. 3 and 6, the tubular member 10 has a first positioning hole 12, the first punching shear member 21 has a second positioning hole 27, the second positioning hole 27 corresponds to the first positioning hole 12, the clamping member 30 has a third positioning hole 32, the third positioning hole 32 can correspond to the second positioning hole 27, and the first positioning hole 12, the second positioning hole 27 and the third positioning hole 32 are used for penetrating a positioning pin to define the position of the clamping member 30 in the tubular member 10. With the above arrangement, the clamp member 30 can be positioned using the positioning pin after the clamp member 30 is inserted into the operation chamber 23 of the punching shear mechanism 20, to prevent the clamp member 30 from coming out of the punching shear mechanism 20 before pressing.
In this embodiment, the first punching shear member 21 abuts against the inner wall of the tubular member 10, the second punching shear member 22 has a gap 13 between the inner wall of the tubular member 10, the transmission member 40 is capable of reciprocating in the tubular member 10, and the end portion of the transmission member 40 is capable of extending into the gap 13 and abutting against the second punching shear member 22 to drive the second punching shear member 22 to move toward the first punching shear member 21. This causes the second punch 22 to move towards the first punch 21 by abutment of the drive member 40 with the second punch 22, thereby closing the operating chamber 23 to squeeze the clamping member 30 and shear the suture.
Specifically, the tubular member 10 has an opening for threading the clamping member 30, and the size of the gap 13 gradually decreases from the transmission member 40 to the direction of the opening. The transmission member 40 can thus press the second punch 22 during insertion in the gap 13 to move the second punch 22 towards the first punch 21. In the present embodiment, the transmission member 40 may be provided in a rod-like structure.
In this embodiment, the knotter further comprises: a drive mechanism 60, the drive mechanism 60 being adapted to drive the transmission member 40 back and forth within the tubular member 10. The driving mechanism 60 is arranged to facilitate the movement of the driving part 40, and the operation is convenient.
Specifically, as shown in fig. 1, the driving mechanism 60 includes: a handle 61, the tubular member 10 being disposed on the handle 61; the trigger 62 is movably arranged on the handle 61, the trigger 62 is provided with an operation end and a driving end, the driving end is in driving connection with the transmission piece 40, and the operation end can rotate or translate so as to drive the driving end to move. Thus, the operation end of the manual pressing or holding trigger 62 can be used for realizing the movement of the driving end, and then the driving end drives the transmission piece 40 to reciprocate in the tubular piece 10, so that the punching shear mechanism 20 is driven to move, and the opening or closing of the operation cavity 23 is realized. For example, the trigger 62 is hinged to the handle 61 to effect rotation, or the trigger 62 is slidably disposed on the handle 61 to effect translation.
Further, the operation end has a pressing position where the operation chamber 23 is closed and a free position where the operation chamber 23 is opened, and the driving mechanism 60 further includes: and an elastic member 63, one end of the elastic member 63 is connected to the trigger 62, the other end of the elastic member 63 is connected to the handle 61, and the elastic member 63 is used to restore the operation end to the free position. By providing the elastic member 63, the operation end of the punching shear mechanism 20 can be automatically restored to the free position after the clamping member 30 is pressed, and then the operation chamber 23 is restored to the open state by the self-elastic action of the punching shear mechanism 20. This facilitates preparation for pressing the other clamping member 30 and operation.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.
Claims (7)
1. A knotter, comprising:
a tubular member (10);
The punching shear mechanism (20) is arranged in the tubular piece (10), the punching shear mechanism (20) comprises a first punching shear piece (21) and a second punching shear piece (22), an operation cavity (23) is arranged between the first punching shear piece (21) and the second punching shear piece (22), the operation cavity (23) comprises a punching cavity section and a shearing cavity section, the punching cavity section can accommodate a clamping piece (30), and a shearing blade (24) is arranged on the inner wall of the shearing cavity section;
A transmission member (40) movably disposed in the tubular member (10), the transmission member (40) being capable of driving at least one of the first punching shear member (21) and the second punching shear member (22) to move so as to open or close the operation chamber (23);
The inner wall of the punching cavity section can press the clamping piece (30) during the closing process of the operation cavity (23) so as to deform the clamping piece (30) to clamp a suture thread penetrated in the clamping piece (30), and the shearing edge (24) of the shearing cavity section can shear the suture thread;
The shearing cavity section is positioned on one side of the stamping cavity section, which is close to the transmission piece (40), the shearing blade (24) comprises an upper blade (241) and a lower blade (242) which are matched with each other, wherein the upper blade (241) is positioned on one of the first punching shear piece (21) and the second punching shear piece (22), and the lower blade (242) is positioned on the other of the first punching shear piece (21) and the second punching shear piece (22);
-said tubular member (10) having a threading aperture (11) therein, said suture passing through said clamping member (30) being capable of passing through said threading aperture (11), said cutting edge (24) being adapted to cut said suture between said clamping member (30) and said threading aperture (11);
A wire harness portion (50) provided on an outer wall of the tubular member (10), the wire harness portion (50) being for guiding and restraining the suture thread that is threaded through the threading hole (11); the wire harness part (50) is sleeved on the tubular piece (10), the wire harness part (50) is provided with a wire groove (51) arranged along the axial direction of the tubular piece (10), and the wire groove (51) is used for guiding and limiting the suture;
the knotter further comprises a clamping piece (30), wherein the clamping piece (30) is of a tubular structure, a first groove (31) is formed in the side wall of the clamping piece (30), a second groove is formed in the side wall of the tubular piece (10), the second groove can correspond to the first groove (31), and the second groove and the first groove (31) are used for penetrating the suture thread;
The tubular member (10) is provided with a first positioning hole (12), the first punching shear member (21) is provided with a second positioning hole (27), the second positioning hole (27) corresponds to the first positioning hole (12), the clamping member (30) is provided with a third positioning hole (32), the third positioning hole (32) can correspond to the second positioning hole (27), and the first positioning hole (12), the second positioning hole (27) and the third positioning hole (32) are used for penetrating a positioning pin so as to limit the position of the clamping member (30) in the tubular member (10);
the first punching shear member (21) is abutted with the inner wall of the tubular member (10), a gap (13) is formed between the second punching shear member (22) and the inner wall of the tubular member (10), the transmission member (40) can reciprocate in the tubular member (10), and the end part of the transmission member (40) can extend into the gap (13) and be abutted with the second punching shear member (22) so as to drive the second punching shear member (22) to move towards the first punching shear member (21).
2. The knotter as claimed in claim 1, wherein the first and second punching elements (21, 22) are of unitary construction, one end of the first punching element (21) adjacent to the transmission element (40) being connected to one end of the second punching element (22) adjacent to the transmission element (40).
3. Knotter according to claim 1, characterized in that the stamping cavity section has on its inner wall mutually matching lugs (25) and grooves (26), the lugs (25) and grooves (26) being used for pressing the clamping element (30), wherein the lugs (25) are located on one of the first and second stamping elements (21, 22) and the grooves (26) are located on the other of the first and second stamping elements (21, 22).
4. Knotter according to claim 1, characterized in that the tubular element (10) has an opening for the passage of the clamping element (30), the size of the gap (13) decreasing gradually from the transmission element (40) to the direction of the opening.
5. The knotter of claim 1, wherein the knotter further comprises:
-a driving mechanism (60), said driving mechanism (60) being adapted to drive said transmission member (40) to and fro within said tubular member (10).
6. The knotter as in claim 5, wherein the drive mechanism (60) includes:
A handle (61), the tubular member (10) being disposed on the handle (61);
the trigger (62) is movably arranged on the handle (61), the trigger (62) is provided with an operation end and a driving end, the driving end is in driving connection with the transmission piece (40), and the operation end rotates or translates to drive the driving end to move.
7. The knotter as claimed in claim 6, wherein the operating end has a pressed position in which the operating chamber (23) is closed and a free position in which the operating chamber (23) is open, the drive mechanism (60) further comprising:
And one end of the elastic piece (63) is connected with the trigger (62), the other end of the elastic piece (63) is connected with the handle (61), and the elastic piece (63) is used for enabling the operation end to return to the free position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811528092.5A CN111317523B (en) | 2018-12-13 | 2018-12-13 | Knotter |
Applications Claiming Priority (1)
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| WO2022077418A1 (en) * | 2020-10-16 | 2022-04-21 | 迈磊医疗器材股份有限公司 | Needle set for laparoscopy and knotting device having needle set |
| CN113991681B (en) * | 2021-10-29 | 2024-09-17 | 国网河北省电力有限公司沧州供电分公司 | Mobile on-load voltage regulating device |
| CN118058787B (en) * | 2024-04-19 | 2024-08-16 | 北京迈迪顶峰医疗科技股份有限公司 | Closure and knotting system |
Citations (5)
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| CN202892020U (en) * | 2012-10-23 | 2013-04-24 | 北京迈迪顶峰医疗科技有限公司 | Minimally invasive knot-tying device system |
| CN204246178U (en) * | 2014-11-14 | 2015-04-08 | 江苏江科知识产权运营有限公司 | A kind of Minimally Invasive Surgery apparatus |
| CN204723113U (en) * | 2015-06-29 | 2015-10-28 | 常州华森医疗器械有限公司 | Push away wire twister |
| CN106073836A (en) * | 2016-06-01 | 2016-11-09 | 北京迈迪顶峰医疗科技有限公司 | A kind of wire twister and there is the knotting system of this wire twister |
| CN209789908U (en) * | 2018-12-13 | 2019-12-17 | 北京迈迪顶峰医疗科技有限公司 | Knotter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6061623B2 (en) * | 2012-11-01 | 2017-01-18 | オリンパス株式会社 | Knotting thread fastener and ligating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202892020U (en) * | 2012-10-23 | 2013-04-24 | 北京迈迪顶峰医疗科技有限公司 | Minimally invasive knot-tying device system |
| CN204246178U (en) * | 2014-11-14 | 2015-04-08 | 江苏江科知识产权运营有限公司 | A kind of Minimally Invasive Surgery apparatus |
| CN204723113U (en) * | 2015-06-29 | 2015-10-28 | 常州华森医疗器械有限公司 | Push away wire twister |
| CN106073836A (en) * | 2016-06-01 | 2016-11-09 | 北京迈迪顶峰医疗科技有限公司 | A kind of wire twister and there is the knotting system of this wire twister |
| CN209789908U (en) * | 2018-12-13 | 2019-12-17 | 北京迈迪顶峰医疗科技有限公司 | Knotter |
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