Nail bin assembly, end effector and surgical instrument

Abstract

A nail bin assembly comprises a nail bin body and anastomosis nails, the anastomosis nails are contained in a nail cavity, and the nail cavity is formed in the nail bin body in a penetrating mode. Thenail bin body comprises a first tissue fluid discharge structure. The invention further discloses an end effector. The end effector comprises a second tissue fluid discharging structure. According tothe nail bin assembly and a surgical instrument thereof, by means of the first tissue fluid discharging structure and the second tissue fluid discharging structure, the pressing force of tissue is dispersed, tissue fluid discharging is facilitated, the time for pressing the tissue to a designated thickness is effectively shortened, the operation time is shortened, the situation of insufficient tissue pressing is avoided, and then the forming effect of the anastomosis nail is guaranteed.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a staple cartridge assembly, an end effector and a surgical instrument, belonging to the field of medical instruments. Background technique [0002] Surgical cutting and stapler is a surgical instrument that can suture the patient's wound while removing excess tissue. It is widely used in the excision and anastomosis of tissues in minimally invasive operations such as abdominal surgery, gynecology, pediatrics, and thoracic surgery. The surgical cutter is inserted into the patient through the cannula of the trocar precisely positioned at the surgical site. The surgical cutting stapler includes an end effector. The end effector includes a staple cartridge seat and an abutment seat. The staple cartridge seat is used to accommodate the staple cartridge assembly. nail. [0003] The target tissue is placed between the nail anvil and the staple cartridge assembly in the staple cartridge seat, ...

AI Technical Summary

Problems solved by technology

However, if the time from closing the end effector to firing the surgical cutting stapler (ie, pressing time) is short, it is less than the 15 seconds required by the instrument or less than the pressing time requirement for special types of tissues, because the interstitial fluid is too late to fully extract from the target tissue. When it is discharged, the tissue fluid is difficult to be compressed, so that the target tissue containing a large amount of tissue fluid is also difficult to be compressed. The thickness of the target tissue between the staple cartridge assembly and the anvil seat cannot reach the safe range for effective suturing, resulting in insufficient tissue compression. Inconsistent nailing, secondary nailing, etc., which lead to postoperative symptoms such as bleeding at the cutting site, tissue leakage, tissue necrosis, etc., affect the smooth progress of the operation, and cause unnecessary pain to the patient

The existing surgical cutting stapler is prone to bleeding after operation, which affects the surgical effect

In addition, the existing surgical cutting stapler is not easy to insert into the site to be cut and sutured

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