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Staple cartridge assembly of disposable intracavity cutting and edge incising anastomat

An internal cutting and stapler technology, applied in the field of medical devices, can solve problems such as inability to achieve tissue fixation, achieve the effect of reducing surgical risks, reducing blood vessel damage, and ensuring stability

Active Publication Date: 2017-01-25
PRECISION CHANGZHOU MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to overcome the inability to achieve tissue fixation in the prior art when the intact tissue is preserved, the present invention provides a staple cartridge assembly of a disposable intracavity cutting margin stapler, in order to reduce the The difficulty and cost of small improvements are improved on the original structure, retaining the staple grooves on the original staple cartridge that do not come out of the staples, and adding a tissue compression structure to the position of this row of staple grooves, so as to solve the problem of tissue compression and fixation The problem

Method used

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  • Staple cartridge assembly of disposable intracavity cutting and edge incising anastomat
  • Staple cartridge assembly of disposable intracavity cutting and edge incising anastomat
  • Staple cartridge assembly of disposable intracavity cutting and edge incising anastomat

Examples

Experimental program
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Effect test

Embodiment 1

[0057] Such as Figure 1-Figure 10 As shown, a staple cartridge assembly of a disposable intracavity cutting edge stapler of the present invention includes a staple cartridge 1, a staple cartridge seat 2, a nail anvil 3 and a nail pusher set 4, and the staple cartridge 1 is set on In the staple cartridge seat 2, the nail abutment plate 3 is arranged opposite to the staple cartridge 1, the surface of the nail abutment plate 3 opposite to the staple cartridge 1 is a forming surface, and one end of the nail abutment plate 3 is rotationally connected to one end of the staple cartridge seat 2 through a rotating shaft. Through the rotation of the anvil plate 3, the opening and closing between the anvil plate 3 and the staple cartridge 1 can be realized. The middle part of the staple cartridge 1 is provided with a cutting groove 1-1, and the staple cartridge 1 on both sides of the cutting groove 1-1 There are three rows of staple grooves 1-2 on the top, and the forming surface is pro...

Embodiment 2

[0061] Such as Figure 11-Figure 12 As shown, the difference between this embodiment and Embodiment 1 is that the structure of the first tissue compression block 4-7 is different, and the top of the first tissue compression block 4-7 is provided with a first rib pattern structure, and the The extending direction of the first bar pattern structure has a certain included angle with the extending direction of the cutting groove 1-1. In this embodiment, the first bar pattern structure is a plurality of first toothed bars 4-8 arranged in parallel, and the extending direction of the first toothed bars 4-8 is mutually compatible with the extending direction of the cutting groove 1-1. Vertical, that is, the included angle is 90°. Tissue accommodation grooves are formed between two adjacent first toothed bars 4-8.

[0062] Compared with the planar structure in Embodiment 1, in this embodiment toothed bars are used to increase the contact area with the tissue and increase the blocking...

Embodiment 3

[0064] Such as Figure 13-Figure 15 As shown, the difference between the present embodiment and the second embodiment is that the setting of the tissue compression structure is different, and the tissue compression structure also includes a second strip pattern structure arranged on the forming surface of the anvil plate 3, and the first strip pattern structure The pattern structure is concavo-convexly matched with the second rib pattern structure. The second rib pattern structure is improved on the plane corresponding to the tissue pressing block groove 1-3 in the second embodiment to a second toothed bar 3-3 having a certain angle with the extending direction of the cutting groove 1-1, In order to cooperate with the first toothed strip 4-8, the second rib pattern structure in this embodiment is a plurality of second toothed strips 3-3 arranged in parallel, and the extending direction of the second toothed strip 3-3 The extension direction of the cutting groove 1-1 is perpen...

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Abstract

The invention provides a staple cartridge assembly of a disposable intracavity cutting and edge incising anastomat. The staple cartridge assembly comprises a staple cartridge, a staple cartridge base and a staple butting plate, wherein the staple cartridge is arranged in the staple cartridge base, a cutting slot is formed in the middle of the staple cartridge, multiple rows of suturing staple slots are formed in two sides of the cutting slot in the staple cartridge, staple pushing piece groups corresponding to the suturing staple slots are arranged in the staple cartridge seat below the staple cartridge, tissue pressing block slots are further formed in the staple cartridge on one side of the cutting slot and are located on the staple cartridge between one row of suturing staple slots on the innermost layer and the cutting slot, tissue pressing structures are arranged on the staple pushing piece groups and / or staple butting plate corresponding to the tissue pressing block slots, and the tissue pressing structures are tissue pressing blocks at certain heights. With the adoption of the tissue pressing structures, pathological frozen sections after an operation can be made while complete tissue is reserved, the stability of the tissue during the operation can also be guaranteed, blood vessel breakage is reduced, and the operation risk is reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a staple cartridge assembly of a disposable endocavity cutting edge stapler. Background technique [0002] In the process of abdominal surgery, the doctor uses an intracavitary cutting stapler to perform surgery in a limited space. When resecting diseased tissue, the smaller the incision, the better for the patient's recovery. Therefore, it is necessary to minimize the wound when resecting the diseased tissue. At the same time, in order to detect whether the diseased tissue is completely included in the resection range, medical detection is usually performed on the edge of the resected tissue, which requires the integrity of the edge of the resected tissue. However, the existing intracavity cutting staplers all have three rows of staples, and the suturing site is very close to the incision edge. Due to the suturing of the staples, the incision of the resected tissue is de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/072A61B17/3209
CPCA61B17/07207A61B17/3209A61B2017/07228A61B2017/07271A61B2017/07278A61B2017/07285
Inventor 陈雨平王明明
Owner PRECISION CHANGZHOU MEDICAL INSTR
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