Nail cartridge for surgical instrument and surgical instrument

Abstract

The invention relates to a nail cartridge for a surgical instrument and the surgical instrument. The nail cartridge for the surgical instrument is provided with a nail cartridge body and suturing nails arranged in the nail cartridge body, wherein a plurality of suturing nail cavities are formed in the nail cartridge body; the nail cartridge body comprises a top end face, and nail outlets formed by penetration of the suturing nail cavities through the top end face are formed in the top end face; a plurality of protrusions are arranged on the top end face, and are at a certain distance away from the nail outlets, and the certain distance is more than 0mm; the protrusions extend along the transverse direction of the nail cartridge. According to the nail cartridge for the surgical instrument, the protrusions extending along the transverse direction of the nail cartridge are arranged on the top end face, so that longitudinal force between a sutured tissue and the nail cartridge is ensured during suturing, and the sutured tissue is prevented from longitudinal displacement when being sutured; in addition, the protrusions are at the certain distance away from the nail outlets, and the certain distance is more than 0mm, so that burrs on the nail outlets of the nail cartridge body are avoided, and compared with the conventional art, the nail cartridge has the advantage that the suturing nails in the nail cartridge can be conveniently discharged with lower resistance during suturing.

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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