Tissue clamping part of linear cutting stapler and its staple cartridge seat

Abstract

The invention discloses a tissue clamping member of a linear cutting anastomat and a nail granary of the tissue clamping member. The left side and the right side of a nail discharging surface of the nail granary are respectively provided with one column of barrier bars and barrier bulges, which are parallel to a knife pushing groove, and the front end part of a nail supporting surface of a nail supporting base of the tissue clamping member is provided with one row of semi-spherical concave holes along the left-right direction. During the use, the barrier bulges apply an acting force with the direction which is opposite to the advancing direction of a cutting knife to the clamped human body tissue, the two columns of barrier bars apply leftwards and rightwards acting forces which have the direction opposite to the advancing direction of the cutting knife and face outside to the clamped human body tissue, therefore the clamped tissue is stable and firm without slipping, wherein the left column of barrier bar applies to a leftwards acting force to the human body tissue and the right column of barrier bar applies to a rightwards acting force to the human body tissue, therefore, the clamped tissue is tightened, and the cutting knife carries out cutting more smoothly when advancing forwards.

Description

technical field [0001] The invention relates to a medical device, in particular to a tissue clamping part and parts of a linear cutting stapler for surgical operations. Background technique [0002] Stapler is a special surgical instrument designed according to the stapler principle and used in surgical operations to replace traditional manual cutting and suturing. There are various types of staplers depending on their purpose and site of use. There are usually three types of digestive tract staplers. The first is a circular stapler, the second is a linear cutting stapler, and the third is a linear stapler. [0003] Circular stapler is also called tubular stapler or end-to-end stapler. Its basic structure is divided into two parts, the nail seat and the body. Ports of tissue are fixedly connected together, and end-to-side and side-to-side anastomoses of luminal organs are also possible. In the end-to-end anastomosis, a side incision is first made on the side of a tubular...

AI Technical Summary

Problems solved by technology

However, the structure of the nail magazine and the nail abutment with such a tissue contact surface is relatively complicated, and the processing cost of the corresponding nail magazine and the nail anvil is also relatively high.

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