Operation suture line for gastrointestinal surgery and preparation method thereof

Abstract

The invention relates to an operation suture line for gastrointestinal surgery and a preparation method thereof. The operation suture line is characterized in that an innermost layer is an alloy core,a second layer to the outside is a deacetylation chitin fiber layer, a third layer is a biopolymer layer, and an outermost layer is a polyglycolic acid layer; the thickness ratio of the deacetylationchitin fiber layer to the biopolymer layer to the polyglycolic acid layer is (2 to 2.5):(1 to 1.5):(1 to 1.5); the diameter of the alloy core is 3 to 5mm, the alloy core adopts zinc, lithium and magnesium alloy, and the weight percentage ratio of zinc to lithium to magnesium is 92:5:3; the deacetylation chitin is prepared by mixing with acetic acid, the biopolymer layer is prepared by degreasinganimal casings, the polyglycolic acid is prepared by polymerizing glycolic acid, and the outer surface of the polyglycolic acid layer is coated with a sterilant. The operation suture line prepared bythe method has the advantages that the antibacterial property is better, the probability of wound infection is greatly decreased, the wound healing speed is quick, the strength is high, the easiness in breaking is avoided, and the prospect is broad in clinical application.

Description

technical field [0001] The invention relates to the technical field of medical instruments for gastrointestinal surgery, in particular to a surgical suture for gastrointestinal surgery and a manufacturing method thereof. Background technique [0002] Operations in gastrointestinal surgery are very common. After the operation, the patient's wound site needs to be sutured to speed up wound healing and avoid infection. Therefore, need to use surgical suture thread when suturing, and it is a kind of thread material that is used for human body surgical suturing. Due to the particularity of the field of gastrointestinal surgery, surgical sutures need to meet the following requirements: they can maintain sufficient strength during the wound healing process, and they should be able to stretch to adapt to wound edema and retract back to the original position as the wound retracts. Length; after the wound is healed, it can degrade and absorb itself, leaving no foreign matter; no infl...

AI Technical Summary

Problems solved by technology

[0003] However, the sutures in the prior art often cause inflammatory reactions and related diseases in patients due to poor immunogenicity elimination and poor virus inactivation effects.