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Cutting knife guard plate assembly, anastomat and steering control method

A cutting knife and stapler technology, applied in the field of staplers, can solve problems such as increasing the distance from the joint to the end of the anastomosis, pulling and tearing, and swinging of the actuator corner

Active Publication Date: 2021-04-09
JY MEDICAL DEVICES SHANGHAI CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steering mechanism achieves the purpose of large turning angle by setting double joints, and its steering angle can reach 60° on one side. operate
[0012] The cutting knife guard of this kind of steering mechanism is a flexible guard. When the actuator is subjected to a large resistance during the firing process of the instrument, it will generate a large reaction force on the cutting knife handle, and the flexible guard will react here. Elastic deformation will occur under the action of the actuator, which will cause the corner of the actuator to swing
The back and forth swing of the angle brings the risk of pulling and tearing the clamped tissue

Method used

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  • Cutting knife guard plate assembly, anastomat and steering control method
  • Cutting knife guard plate assembly, anastomat and steering control method
  • Cutting knife guard plate assembly, anastomat and steering control method

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Embodiment Construction

[0159] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0160] Herein, "rear end" refers to the end close to the operator, and "front end" refers to the end away from the operator. The directions of "up, down, top, bottom, left, right" are indicated in the corresponding drawings (such as figure 2 ) to describe the position shown, not to limit the direction of each component when the stapler is actually used, the positions of "up, down, top, bottom, left, right" correspond to the following figure 2 direction shown. For the convenience of description, the front-b...

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PUM

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Abstract

The invention discloses a cutting knife guard plate assembly, an anastomat and a steering control method. The cutting knife guard plate assembly comprises two cutting knife guard plates which are positioned on two sides of a central axis and have two opposite arc-shaped structures with corresponding recessed inner surfaces to form space allowing a cutter handle of the cutting knife assembly to move along the central axis and / or deflect relative to the central axis; and the two cutting knife guard plates respectively deflect relative to the central axis when one cutting knife guard plate moves toward the near end of the anastomat and the other cutting knife guard plate moves toward the far end of the anastomat, the knife handle is bent, and the part, protruding toward one side due to bending, of the knife handle is attached to the inner surface of the cutting knife protection plate on the corresponding side. Compared with an existing anastomat, the anastomat provided by the invention has the advantages that the rotating angle is larger, and the anastomat is more stable during deflection.

Description

technical field [0001] The invention relates to a stapler, in particular to a cutter guard plate assembly, a stapler and a steering control method. Background technique [0002] A stapler is a device used in medicine to replace manual suturing. The stapler is generally composed of an actuator, a cutting knife and other structures. During the operation, the tissue to be anastomosed is clamped and occluded in the actuator (including the staple cartridge assembly and the staple felt assembly), and the handle of the instrument gun is pressed to drive the cutting knife to separate the tissue, while the staples set in the staple cartridge assembly is pushed out and anastomosed to the tissue. [0003] Staplers are commonly used in laparoscopic surgery. Laparoscopic surgery is to transmit the images of various organs in the abdominal cavity captured by the camera inserted into the abdominal cavity to the screen through a small incision in the abdomen or chest. The doctor observes...

Claims

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Application Information

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IPC IPC(8): A61B17/072
CPCA61B17/07207A61B2017/07285
Inventor 姚建清史金虎
Owner JY MEDICAL DEVICES SHANGHAI CO LTD
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