Nail bin 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

Inactive Publication Date: 2011-05-04
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

[0025] The present invention discloses a staple cartridge assembly 100, which is suitable for linear / curved binding instruments, linear cutting and binding instruments, and round tube cutting and binding instruments.

[0026] Such as 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 .

[0027] In the present invention, the cross-sections of the cartridge hole 2 and the push piece 3 both include a pair of long sides 7 , 8 . combine image 3 In the first embodiment shown, the distance L between the long sides 7 of the cartridge holes 2 is greater than the distance D between the long sides 8 of the pusher pieces 3 . And the connection sectio...

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PUM

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Abstract

The invention discloses a nail bin assembly which comprises a nail bin, a nail bin hole and a nail-pushing slice, wherein the nail bin hole is thoroughly arranged on the surface of the nail bin, the nail-pushing slice is arranged in the nail bin hole and can slide relative to the nail bin hole, the transversal surfaces of the nail bin hole and the nail-pushing slice are respectively provided with a pair of long edges, and the distance between the long edges of the nail bin hole is greater than that between the long edges of the nail-pushing slice. The invention has the main beneficial effects that because the nail bin hole and the nail-pushing slice are in point contact, the friction between the nail bin hole and the nail-pushing slice is small, so that the percussive force of the whole nail bin assembly 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 Applications(China)
IPC IPC(8): A61B17/072
Inventor 陈望东徐威周婧
Owner TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE CO LTD
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