CN213665468U

CN213665468U - Transverse intracavity stitching instrument

Info

Publication number: CN213665468U
Application number: CN202022691183.XU
Authority: CN
Inventors: 施俭; 向长林; 师建宁
Original assignee: Suzhou Beinuo Medical Instruments Co Ltd
Current assignee: Suzhou Beinuo Medical Instruments Co Ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-13
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a horizontal intracavity stitching instrument, the centre gripping slider is connected to the one end of centre gripping push rod, the other end of centre gripping push rod passes through the elastic component and is connected with the centre gripping driving piece, the one end and the ejector pin piece of ejector pin push rod are connected, the ejector pin push rod passes the elastic component and the other end and the centre gripping driving piece of ejector pin push rod are connected, the pilot pin is connected to the one end of pilot pin push rod, the other end and the pilot pin drive assembly of pilot pin push rod are connected, driving handle is used for driving centre gripping drive assembly and removes to the distal end by the near-end, centre gripping drive assembly includes centre gripping driving piece and connecting piece, the centre gripping driving piece is equipped with the drive groove, the connecting piece is equipped with the arch, the arch and the drive groove sliding fit of connecting piece, the pilot pin driving piece is equipped with. Compared with the existing apparatus, the structure of the apparatus is greatly simplified, the parts of the apparatus are reduced, and the weight of the apparatus is lightened.

Description

Transverse intracavity stitching instrument

Technical Field

The utility model relates to the field of medical machinery, especially, relate to a horizontal intracavity stitching instrument.

Background

The stapler can solve the potential problems in surgeries with special requirements and surgeries involving side-to-side anastomosis procedures. For example, in the anastomosis operation of the stomach and the esophagus, the end-side anastomosis of a circular anastomat can be replaced, the problem of anastomotic stenosis is avoided, and in addition, the reflux is less.

The stitching instrument has been applied clinically for more than twenty years, and is a surgical operation instrument which is generally adopted in general surgery, thoracic surgery, gynecology and pediatric surgery at present. The product adopts the principle of a stapler, and cuts or stumps of visceral organs are closed and sutured in the operation through suture needles which are arranged in a linear staggered manner. The suturing cutter has the characteristics of tidy suturing, reliable suture opening firmness, good hemostatic effect and good blood circulation keeping, and cuts and separates tissues while suturing. It can not only greatly shorten operation time and reduce bleeding amount, but also improve operation quality and reduce operation complications.

Based on the operation process of the existing stitching instrument, the whole firing process of the instrument needs two handles to be divided into three steps: the lock handle is held to a certain position; the lock handle is held to the second position; the firing handle finishes firing, suturing and cutting, however, the existing instrument has more parts, the weight of the whole instrument is increased, and the structure is complex.

In order to solve the problem, the utility model provides a horizontal intracavity stitching instrument.

Disclosure of Invention

The utility model aims at providing a horizontal intracavity stitching instrument, the cooperation that combines the elastic component through the design of drive structure realizes only realizing the three steps percussion of stitching instrument by single drive handle, compares the structure of this structure simplified the apparatus greatly with current apparatus, has reduced the spare part of apparatus, has alleviateed the weight of apparatus.

In order to achieve the above object, the utility model provides a following scheme:

a transverse intracavity stitching instrument comprises a driving handle, a driving structure, a shell, a push rod assembly and an elastic piece, wherein the driving structure comprises a positioning needle driving assembly and a clamping driving piece, the push rod assembly comprises a positioning needle push rod, a clamping push rod and a nail pushing push rod, one end of the clamping push rod is connected with a clamping slide block, the other end of the clamping push rod is connected with the clamping driving piece through the elastic piece, one end of the nail pushing push rod is connected with a nail pushing block, the nail pushing push rod penetrates through the elastic piece, the other end of the nail pushing push rod is connected with the clamping driving piece, one end of the positioning needle push rod is connected with a positioning needle, the other end of the positioning needle push rod is connected with the positioning needle driving assembly, the driving handle is used for driving the clamping driving assembly to move from a near end to a far end, the clamping driving assembly comprises a clamping driving, the centre gripping driving piece is equipped with the drive groove, the connecting piece is equipped with the arch, the arch of connecting piece with the drive groove slides and matches, the pilot pin driving piece is equipped with the drive division, the one end of connecting piece with the drive division of pilot pin driving piece contacts, the other end of connecting piece with the casing rotates and is connected.

Optionally, the driving groove includes a first sliding groove and a second sliding groove, the first sliding groove is communicated with the second sliding groove, when the driving assembly moves from the first position to the second position, the protrusion slides in the first sliding groove to enable the positioning pin driving assembly and the clamping driving member to move synchronously, and when the driving assembly moves from the second position to the third position, the protrusion slides in the second sliding groove to enable the positioning pin driving assembly to be stationary relative to the housing when the clamping driving member moves forwards.

Optionally, an included angle between the first sliding groove and the second sliding groove is 80-90 °.

Optionally, the driving portion is provided with a notch, and the notch is located at the proximal end of the driving portion.

Optionally, still including the piece that resets, the casing is equipped with the slot hole, the piece that resets passes through the connecting rod the slot hole with the pilot pin driving piece is connected, the connecting rod with the slot hole slides and matches.

According to the utility model provides a concrete embodiment, the utility model discloses following technological effect has:

1) the utility model provides a pair of horizontal intracavity stitching instrument, the cooperation that combines the elastic component through the design of drive structure realizes only realizing the three steps percussion of stitching instrument by single drive handle, compares the structure that this structure has simplified the apparatus greatly with current apparatus, has reduced the spare part of apparatus, has alleviateed the weight of apparatus.

2) Realize the drive between pilot pin drive assembly, the centre gripping driving piece through the connecting piece, the cooperation between the drive groove of centre gripping driving piece and the arch of connecting piece can make pilot pin drive assembly only receive drive handle's promotion in the drive handle drive earlier stage and move forward, and accomplish the location back at the pilot pin, pilot pin drive assembly and casing are static relatively, do not receive the drive handle motive force.

3) Through the design of the notch of the driving part and the matching of the resetting piece, the resetting of the positioning needle driving assembly can be realized.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic structural view of a transverse intracavity suturing device provided by the present invention.

Fig. 2 is a partial schematic view of a transverse intracavity stapler provided by the present invention.

Fig. 3 is a partial enlarged view of a transverse intracavity stapler according to the present invention.

Reference numerals:

1-drive handle, 2-drive structure, 21-positioning needle drive assembly, 211-positioning needle drive assembly, 2111-drive section, 212-connecting piece, 22-clamping drive assembly, 221-drive groove, 3-push rod assembly, 31-positioning needle push rod, 32-clamping push rod, 33-push nail push rod, 4-shell, 5-elastic piece and 6-reset piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

A transverse intracavity stitching instrument comprises a driving handle 1, a driving structure 2, a shell 4, a push rod assembly 3 and an elastic piece 5, wherein the driving structure 2 comprises a positioning needle driving assembly 21 and a clamping driving piece 22, the push rod assembly 3 comprises a positioning needle push rod 31, a clamping push rod 32 and a nail pushing push rod 33, one end of the clamping push rod 32 is connected with a clamping slide block, the other end of the clamping push rod 32 is connected with the clamping driving piece 22 through the elastic piece 5, one end of the nail pushing push rod 33 is connected with the nail pushing block, the nail pushing push rod 33 penetrates through the elastic piece 5, the other end of the nail pushing rod 33 is connected with the clamping driving piece 22, one end of the positioning needle push rod 31 is connected with a positioning needle, the other end of the positioning needle push rod 31 is connected with the positioning needle driving assembly 21, the driving handle 1 is used for driving the clamping driving assembly to move from a near end to a far end, the clamping driving member 22 is provided with a driving groove 221, the connecting member 212 is provided with a protrusion, the protrusion of the connecting member 212 is slidably matched with the driving groove 221, the positioning pin driving member 211 is provided with a driving portion 2111, one end of the connecting member 212 is in contact with the driving portion 2111 of the positioning pin driving member 211, and the other end of the connecting member 212 is rotatably connected with the housing 4.

Further, the driving slot 221 includes a first sliding slot and a second sliding slot, the first sliding slot and the second sliding slot are communicated, when the driving assembly moves from the first position to the second position, the protrusion slides in the first sliding slot to enable the positioning pin driving assembly 21 and the clamping driving member 22 to move synchronously, and when the driving assembly moves from the second position to the third position, the protrusion slides in the second sliding slot to enable the positioning pin driving assembly 21 to be stationary relative to the housing 4 when the clamping driving member 22 moves forward.

Furthermore, the included angle between the first sliding chute and the second sliding chute is 80-90 degrees.

Further, the drive portion 2111 is provided with a notch, which is located at the proximal end of the drive portion 2111.

Further, still including restoring to the throne piece 6, casing 4 is equipped with the slot hole, and it is connected with pilot pin driving piece 211 to restore to the throne piece 6 passes the slot hole through the connecting rod, and the connecting rod matches with the slot hole slip.

The utility model discloses a theory of operation:

1) when an instrument is fired, a doctor controls the driving handle, the driving handle pushes the driving assembly to move from the near end to the far end, resistance force applied to the forward movement of the push rod is smaller than initial elastic force of the spring, so that the nail pushing push rod and the clamping push rod move forwards synchronously, the protrusion of the connecting piece is positioned in the first sliding groove at the moment, the side wall of the first sliding groove plays a role in pushing the protrusion, when the protrusion moves along with the clamping driving piece, the connecting piece rotates, one end of the connecting piece pushes the driving part of the positioning needle driving piece to move forwards, so that the positioning needle driving piece and the clamping driving piece move forwards synchronously, and the positioning needle push rod and the clamping push rod move forwards synchronously;

2) continuing to trigger the instrument, after the positioning needle is positioned, sliding the bulge of the connecting piece into the second sliding groove from the first sliding groove and starting to slide in the second sliding groove, wherein when the driving handle drives the clamping driving piece to move forwards, the positioning needle driving piece does not move along with the first sliding groove, and the driving handle pushes the clamping driving assembly to move forwards to complete clamping of the sutured tissue;

3) the instrument is continuously triggered, after clamping is finished, the clamping push rod cannot move forwards, at the moment, when the driving handle continuously pushes the clamping driving piece, the elastic piece is compressed, the clamping push rod and the nail pushing push rod form staggered motion, and the nail pushing push rod continuously moves forwards to push out the suturing nails.

The utility model provides a horizontal intracavity stitching instrument, which realizes three-step percussion of the stitching instrument only by a single driving handle through the design of a driving structure and the matching of an elastic part, compared with the prior instrument, the structure greatly simplifies the structure of the instrument, reduces the parts of the instrument and lightens the weight of the instrument; the positioning needle driving assembly and the clamping driving member are driven by the connecting piece, and the driving groove of the clamping driving member is matched with the protrusion of the connecting piece, so that the positioning needle driving assembly is pushed by the driving handle to move forwards only in the early stage of driving of the driving handle, and after the positioning needle is positioned, the positioning needle driving assembly and the shell are relatively static and are not pushed by the driving handle; through the design of the notch of the driving part and the matching of the resetting piece, the resetting of the positioning needle driving assembly can be realized.

The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The transverse intracavity stitching instrument is characterized by comprising a driving handle (1), a driving structure (2), a shell (4), a push rod assembly (3) and an elastic piece (5), wherein the driving structure (2) comprises a positioning needle driving assembly (21) and a clamping driving piece (22), the push rod assembly (3) comprises a positioning needle push rod (31), a clamping push rod (32) and a nail pushing push rod (33), one end of the clamping push rod (32) is connected with a clamping sliding block, the other end of the clamping push rod (32) is connected with the clamping driving piece (22) through the elastic piece (5), one end of the nail push rod (33) is connected with a nail pushing block, the nail push rod (33) penetrates through the elastic piece (5) and the other end of the nail push rod (33) is connected with the clamping driving piece (22), one end of the positioning needle push rod (31) is connected with a positioning needle, the other end of pilot pin push rod (31) with pilot pin drive assembly (21) is connected, actuating handle (1) is used for driving centre gripping drive assembly and is removed to the distal end by the near-end, pilot pin drive assembly (21) includes pilot pin driving piece (211) and connecting piece (212), centre gripping driving piece (22) are equipped with drive groove (221), connecting piece (212) are equipped with the arch, the arch of connecting piece (212) with drive groove (221) sliding match, pilot pin driving piece (211) are equipped with drive division (2111), the one end of connecting piece (212) with drive division (2111) of pilot pin driving piece (211) contact, the other end of connecting piece (212) with casing (4) rotate the connection.

2. A transverse endoluminal stapler according to claim 1, wherein said driving channel (221) comprises a first runner and a second runner, said first runner and said second runner communicating, said projection sliding within said first runner to synchronize the movement of said positioning needle driving assembly (21) and said clamp driving member (22) when the driving assembly moves from the first position to the second position, said projection sliding within said second runner to make said clamp driving member (22) move forward when the driving assembly moves from the second position to the third position, said positioning needle driving assembly (21) being stationary relative to said housing (4).

3. The transverse endoluminal stapler according to claim 2, wherein the angle between said first runner and said second runner is 80 ° to 90 °.

4. The transverse endoluminal stapler according to claim 1, wherein the driving portion (2111) is provided with a notch located at a proximal end of the driving portion (2111).

5. The transverse endoluminal stapler according to claim 4, further comprising a reset member (6), wherein the housing (4) is provided with a long hole, the reset member (6) is connected with the positioning needle driving member (211) by a connecting rod passing through the long hole, and the connecting rod is slidably matched with the long hole.