Round anastomat provided with 3D nail groove structure nail-abutting seat

Abstract

The invention relates to the technical field of medical apparatuses and instruments, in particular to a round anastomat provided with a 3D nail groove structure nail-abutting seat. The round anastomatcomprises a nail bin provided with titanium nails and the nail-abutting seat provided with a nail groove, wherein internal and external nail groove rings are arranged on the nail-abutting seat, eachnail groove ring is composed of a plurality of nail grooves, the nail groove groups are uniformly arranged with the center of the nail-abutting seat as a circle center, each nail groove group is composed of a front nail groove and a back nail groove arranged in a staggered way, the front nail grooves and the back nail grooves are parallelly formed, the back side faces of the front nail grooves andthe front side faces of the back nail grooves are located on the same straight line, the nail groove groups on the internal and external nail groove rings of the nail-abutting seat are parallelly arranged, two ends of each nail groove are provided with circular-arc grooves matched with the outer walls of the titanium nails, the nail-abutting seat is arranged to of a cross nail groove structure, so that anastomosing nails are bent along the cross nail grooves to form 3D curved surface crossed formation, the tension when the tissue is too thick is convenient to control, and sewing safety is ensured. In addition, the arrangement number of 3D nails is smaller than that of 2D nails, the number of anastomosing nails left in the human body can be decreased, and the effect of reducing irritationof foreign matter is achieved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a circular stapler with a 3D nail groove structure anvil. Background technique [0002] Stapler is a device used in medicine to replace manual suturing. The main working principle is to use titanium nails to separate or anastomose tissues, similar to a stapler. 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. [0003] The suturing work of the existing disposable circular or anorectal stapler is completed by staples. The staples in the staple magazine are pushed into the nail grooves of the nail abutment seat and bent under force, so that the relative skin tissue is sutured, and the staple abutment seat The arrangement and shape of th...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the disadvantage that the existing 2D plane B-shaped nails are prone to cause uneven suturing, the present invention provides a circular stapler with a 3D nail groove structure anvil, and the anvil is set in a cross nail groove structure, so that Titanium nails are bent along the cross nail grooves to form a 3D curved cross shape

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