Three-dimensional molded anastomat anvil of anastomat and anastomat molding method

Abstract

The invention discloses a three-dimensional molded anastomat anvil of an anastomat and an anastomat molding method. The anastomat anvil comprises an anastomat anvil body. The anastomat anvil body is provided with four rows of anastomat molding grooves and a cutter guide groove. The two sides of the cutter guide groove are each provided with two rows of anastomat molding grooves which are staggered. Each row of anastomat molding grooves are provided with a plurality of anastomat molding groove holes. Each anastomat molding groove hole is composed of two identical holes, wherein the cross sections of the two identical holes are in the shape of an irregular triangle with one set of perpendicular adjacent edges. In this way, tissue anastomosis connection is even, anastomats are evenly distributed in the tissue, local anastomat intersection is avoided, the periphery of a titanium wire is evenly wrapped by the tissue, the anastomotic stoma inflammation probability is lower, and the anastomotic stoma is easier to heal.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a staple anvil for three-dimensional forming of staples and a staple forming method. Background technique [0002] The use of staplers to suture tissues is common in various surgical operations. The doctor uses a linear stapler or a circular stapler to fire and implant two rows of interlaced staples into the tissue to perform double-row cross-stitching on the tissue. The suture is tight and prevents leakage. Leakage; because small blood vessels can pass through the gap of the "B"-shaped staple, it does not affect the blood supply of the suture and its distal end. All the staples are made of titanium or tantalum, and compared with manual sutures, the tissue reaction is small; because the staples are arranged neatly and at equal intervals, the suture tightness is controlled by a scale, which avoids manual sutures that are too sparse, too dense, and too ligated Tighter than looser, t...

AI Technical Summary

Problems solved by technology

Bleeding during surgery is serious, so all kinds of doctors attach great importance to the problem of bleeding. The analysis of bleeding after stapler stapling found that if the closure height of the staples is too high, the tissue contained in the staple circle cannot Compression of larger blood vessels will cause bleeding at the cutting edge, and too low closure height of the staples will also cause crushing damage to the tissue and bleeding

Sometimes the height of the staples meets the requirements for hemostasis, but in many cases there is still local bleeding at the incised end of some tissues. After a lot of research, it is believed that this is related to the current staple arrangement method. The current staple arrangement method is difficult to avoid incisional bleeding. Bleeding, the staple line still has hemostatic weakness, which is mainly reflected in two places: 1. The gap between the two staples; 2. The gap between the two forming circles of the "B" nail

Images