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Staple cartridge assembly

A technology of nail cartridges and components, which is applied in the field of medical devices, can solve the problems of large friction force and large firing force of instruments, and achieve the effect of small firing force

Active Publication Date: 2012-09-26
TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the staple cartridge hole 2 and the pusher piece 3 are hexagonal with the same outline, the friction between them is very large, resulting in a large firing force of the instrument.

Method used

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Examples

Experimental program
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Embodiment Construction

[0020] The present invention discloses a staple cartridge assembly 100, which is suitable for linear / curved binding instruments, linear cutting and binding instruments, round tube cutting and binding instruments, and the like.

[0021] like figure 1 As shown, consistent with the prior art, the staple cartridge assembly 100 includes a staple cartridge 1, a staple cartridge hole 2 disposed on the surface of the staple cartridge 1, a staple and a staple pusher that are placed in the staple cartridge hole 2 and can slide relative thereto. 3. In some instruments, the nail pusher 3 can also be fixed on the same nail pusher seat 4 .

[0022] In the present invention, the cross-sections of the magazine hole 2 and the push piece 3 are a pair of tangential straight line sides 7 and arc sides 8 . combine image 3 In the first embodiment shown, the cross-section of the staple cartridge hole 2 includes an arc edge 8, and correspondingly, the cross-section of the nail pusher 3 includes a...

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PUM

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Abstract

The invention discloses a staple cartridge assembly. The staple cartridge assembly comprises a staple cartridge, a staple cartridge hole formed on the surface of the staple cartridge, a staple pushing sheet arranged in the staple cartridge hole and can slide relative to the staple cartridge hole, wherein the cross section of the staple cartridge hole comprises a straight line edge and correspondingly, the cross section of the staple pushing sheet comprises an arc edge; or the cross section of the staple cartridge hole comprises an arc edge and correspondingly, the cross section of the staple pushing sheet comprises a straight line edge; and the arc edge and the straight line edge are tangent. Compared with the prior art, the assembly has the main advantages that: the staple cartridge holeis in point contact with the staple pushing sheet, so that the friction force between the staple cartridge hole and the staple pushing sheet is small; therefore, percussion force of the whole instrument is relatively small.

Description

technical field [0001] The invention relates to a staple cartridge assembly of a surgical operation binding instrument, which belongs to the technical field of medical instruments. Background technique [0002] Surgical binding instruments are an important tool for wound suturing in surgical operations, and there is a trend of eliminating manual suturing at present. Among them, the linear / curved binding instrument can close the wound tissue, the linear cutting and binding instrument can cut the tissue while closing the wound tissue, and the round tube cutting and binding instrument can suture and cut the round tube tissue . [0003] Take the linear cutting and binding instrument disclosed in US Pat. broken. At present, this stapler is widely used clinically for side-to-side anastomosis of the stomach and jejunum, as well as operations such as the production of gastric tubes and partial lung resection. The advantage is that the suture length is long, and tissue cutting ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/072
Inventor 陈望东周婧
Owner TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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