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Straight stitching instrument

A linear stapler and staple cartridge technology, applied in the field of medical devices, can solve problems such as affecting the surgical effect, improper replacement of staple cartridges, instrument firing, etc., so as to avoid tedious steps, reduce the damage rate of instruments, and save the time for replacing staple cartridges. Effect

Active Publication Date: 2013-07-03
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the operation process, it is often necessary to use the linear stapler twice or more, and the doctor needs to replace the staple cartridge of the linear stapler. Although the instrument designer has tried his best to simplify the steps and methods of replacing the staple cartridge, it is still In many cases, the doctor will improperly replace the staple cartridge, which will cause the instrument to be forced to fire and be damaged, and more seriously, it will affect the surgical effect

Method used

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Examples

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Embodiment Construction

[0021] The invention discloses a linear suturing device, such as figure 1 As shown, it is consistent with the prior art, including: a housing 1 , a bracket 2 fixed on the housing 1 , an anvil 3 arranged at the far end of the bracket 2 , and a firing handle 4 pivotally arranged on the bracket 2 . The linear stapler of the present invention also includes a staple cartridge assembly 5, specifically referring to figure 2 As shown, the cartridge assembly includes a cartridge holder 6 pluggably arranged at the distal end of the bracket, and a pusher hole 8 for the pusher piece 7 to pass through is provided in the cartridge holder. The shape and arrangement of the nail pushing pieces 7 are consistent with the prior art, and are arranged in two rows of inner and outer rows.

[0022] A cylindrical wheel-type nail bin 9 is arranged inside the nail bin rack 6, and at least 2 groups of nail holes 10 are evenly distributed on the circumferential surface of the wheel-type nail bin. In thi...

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Abstract

The invention provides a straight stitching instrument which comprises a shell, a bracket, a nail anvil and a nail bin assembly, wherein the bracket is fixedly connected with the shell; the nail anvil is arranged at the far end of the bracket; the nail bin assembly is arranged opposite to the nail anvil; the nail bin assembly is provided with at least two firing surfaces; each firing surface is concavely provided with at least two rows of nail bin holes in which stitching nails are arranged; and the nail bin assembly comprises a selecting device for selecting any one firing surface to be against the nail anvil to form a tissue firing region. The straight stitching instrument has the main beneficial effects that a nail bin is free of replacement; firing can be repeatedly carried out; the fussy step of replacing the nail bin is avoided; time for a doctor to replace the nail bin is also saved; and meanwhile, the rate of damage to the instrument, which is caused by the improper operation of replacing the nail bin, is reduced.

Description

technical field [0001] The invention relates to a linear stapler, in particular to a staple cartridge assembly of the linear stapler, and belongs to the field of medical devices. Background technique [0002] At present, when physiological tissues such as the esophagus, stomach, and intestinal tract are surgically anastomosed, a surgical stapler is often used for anastomosis, and a linear stapler is a relatively important one. In the prior art, with reference to U.S. Patent No. 7,407,076, a linear suture device is described, which is used to close the wounds of the digestive tract and visceral tissues. It generally includes a housing, a bracket fixed in the housing, and is arranged at the distal end of the bracket for performing suturing operations. The nail anvil and the nail bin, the transmission device arranged in the bracket and used to push the nail bin and the nails in the nail bin, and the firing handle which is pivotally arranged on the bracket through a rotating sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/072
CPCA61B17/072
Inventor 陈望东徐威
Owner TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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