Nail cabin for surgical instrument and surgical instrument

Abstract

The invention relates to a nail cabin for a surgical instrument and the surgical instrument. The nail cabin for the surgical instrument is provided with a nail cabin body and suture nails arranged in the nail cabin body, wherein a plurality of suture nail cavities are formed in the nail cabin body; the nail cabin body is provided with a narrow tool slot along the longitudinal axis of the nail cabin body; the narrow tool slot partitions the nail cabin body into two side parts; each side part comprises a top end face; both sides of each top end face are provided with side edges extending along the longitudinal axis; the top end faces are provided with nail outlets formed by penetration of the suture nail cavity through the top end faces; the top end faces are provided with a plurality of bumps; at least a part of the bumps extend from one side edges of the top end faces to the other side edges of the top end faces along the top end faces; certain distances are kept between the bumps and the nail outlets; and the certain distances are larger than zero.

Description

technical field [0001] The invention relates to a nail cartridge for surgical instruments and the surgical instruments. Background technique [0002] Surgical instruments are surgical tools in medical operations, and suture instruments are a kind of surgical instruments. They are used in medicine to replace manual suture equipment. The main working principle is to use titanium nails to separate or anastomose tissues, similar to ordering book machine. According to the scope of application, it can be divided into skin staplers, digestive tract (esophagus, gastrointestinal, etc.) circular staplers, rectal staplers, circular hemorrhoid staplers, circumcision staplers, blood vessel staplers, hernia staplers , Lung cutting stapler, etc. The suturing instrument includes a pair of cooperating elongate jaw members, the jaw members are adapted to be inserted into the body of a patient to suture and / or cut tissue, and the jaw members are capable of supporting and receiving a staple c...

AI Technical Summary

Problems solved by technology

However, the existing suturing instruments generally have the following problems when suturing. When the jaws clamp the tissue to be sutured, due to the external force generated when the instrument operator shakes or the blade is pushed, the tissue to be sutured often clamped by the jaws Displacement occurs, which affects the suture effect

In view of this problem, Chinese patent application No. 201180047031.7 discloses a staple cartridge, the top surface of the staple cartridge is provided with a ridge, and the ridge surrounds the proximal and distal ends of the nail outlet on the top surface. Although this design It can solve the phenomenon of displacement of the sutured tissue, but because the ridge surrounds the proximal end and the distal end of the nail outlet on the top surface, and this structure, the nail cartridge cannot be avoided during the preparation process. There are burrs at the joint between the nail mouth and the ridge, which affects the nailing effect, that is, when the nail is unloaded, the nailing resistance at the joint between the nail mouth and the ridge is large

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