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Novel anastomat

A stapler, a new type of technology, applied in the field of medical devices, can solve the problems of reduced strength, falling off of push nails, small interference, etc., to achieve the effect of avoiding deformation of the connecting end and convenient and reliable structural connection

Inactive Publication Date: 2014-02-05
SHANDONG WEIRUI SURGICAL MEDICAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two potential risks in this connection method: 1. The assembly purpose is achieved through the deformation of the parts, which may damage the parts and reduce its strength; 2. The interference is too small. If the interference is too large, the deformation cannot be achieved. To assemble, because the interference is small, when a large external force is received, the push nails are easy to fall off, making the device unable to continue to use

Method used

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Examples

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Embodiment Construction

[0015] Such as Figure 1-Figure 6 As shown, the stapler of the present invention includes a nail pusher 1 and a direct push tube 2, the upper part of the nail pusher 1 is provided with a pusher tooth 11, and the middle part is provided with a cable groove 12 and a push rod connecting hole 14. A positioning groove 13 is provided on the outer periphery of the nail piece 1, and the positioning groove 13 is located at the lower part of the nail pushing tooth piece, and the direct pushing tube is connected in the connecting hole of the push rod through a screw-in connection. This embodiment shows a preferred implementation mode. The front end of the straight push tube 2 is evenly distributed with four protrusions 21, and the lower end of the push nail piece 1 is correspondingly provided with four bar-shaped grooves 15, and the inner wall is provided with an annular chute 16. . One side of the groove 15 is open, and the protrusion 21 of the direct push tube 2 is screwed in through ...

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PUM

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Abstract

The invention discloses a novel anastomat, which comprises a nail pushing sheet and a straight pushing pipe, wherein a nail pushing tooth sheet is arranged at the upper part of the nail pushing sheet, a wire pulling groove and a push rod connecting hole are formed in the middle of the nail pushing sheet, and a positioning groove is formed on the periphery of the nail pushing sheet and is positioned at the lower part of the nail pushing tooth sheet. The novel anastomat is characterized in that the straight pushing pipe is connected into the push rod connecting hole in a screwing connecting mode. The novel anastomat has the advantages that the straight pushing pipe and the nail pushing sheet are connected by adopting a screwing connecting mode, the connecting end deformation of the nail pushing sheet and the straight pushing pipe, caused by the direct insertion connection is avoided, the connection of the structure is convenient and reliable, and in addition, no influence is caused on the intensity and the precision of the novel anastomat.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and in particular relates to a novel stapler. Background technique [0002] Stapler is a commonly used medical device in clinical practice. In some surgical operations, using stapler instead of traditional manual suture has the advantages of high efficiency, safety, quickness and strong operability. In existing staplers, the connection between the pusher piece and the straight pusher tube utilizes the interference fit between the two, and the straight pusher tube is inserted into the push rod connection hole of the pusher piece by force. There are two potential risks in this connection method: 1. The assembly purpose is achieved through the deformation of the parts, which may damage the parts and reduce its strength; 2. The interference is too small. If the interference is too large, the deformation cannot be achieved. To assemble, because the interference is small, when a large exte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/115
CPCA61B17/1155
Inventor 李刚胡峰林汤华振刘静海姚大强王翠英韩超
Owner SHANDONG WEIRUI SURGICAL MEDICAL PROD