Medical elastic suture line with needle

Abstract

The invention provides a medical elastic suture line with a needle. The suture comprises a suture needle and a suture line, wherein the tail end of the suture needle and one end of the suture line arebonded together, the transition between the suture line and the tail end of the suture needle smoothly transits, the diameter of the tail end of the suture needle becomes smaller, and the tail end ofthe suture needle is provided with one or more of a convex ring, a groove and a convex block. The suture line comprises the following raw materials in parts by weight: 20.5-35.8 parts of polyglycolicacid, 1.2-3.5 parts of chitosan, 12.5-17.5 parts of polylactic acid, 1.0-2.2 parts of silk fibroin, 7.5-9.7 parts of salmon collagen, 1.7-2.5 parts of cross-linking agents, 1.2-2.5 parts of stabilizing agents and 2.1-3.7 parts of antibacterial agents. The suture line is elastic, maintains the tension after tissue swelling is reduced, and ensures wound healing; one end of the suture line and the tail end of the suture needle are bonded together to enable a needle hole and the suture line to be tightly attached, so that the needle hole is not easy to infect.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical elastic suture with needles. Background technique [0002] One of the cornerstones of surgery is the use of sutures to draw tissue back together and hold it in the desired configuration until it can heal; in principle suturing is the introduction of high tensile strength external structures (looped sutures) into separate pieces of tissue in order to hold the pieces close together until scarring can form, creating continuity and strength between the tissues. The sutures initially provide a full-strength repair, and the time elapsed before the tissue heals to its maximum strength depends on the sutures used to draw the tissue closer. [0003] Existing sutures are inelastic, the ligation tension is not large, and the knots are easy to fall off after the ligation tissue detumescence; in the prior art, the sutures pass through the pinholes of the suture needles, and...

AI Technical Summary

Problems solved by technology

[0003] The existing suture thread is inelastic, the ligation tension is not large, and the knot is easy to fall off after the ligated tissue detumescence; in the prior art, the suture thread passes through the pinhole of the suture needle, and the folded suture thread and suture needle make the pinhole too large , the pinholes and sutures are not tightly fitted, and the pinholes are prone to infection

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