Preparation method of medical surgical suture

A technique of surgical suture and silk thread, applied in the field of medical supplies, can solve the problems of low tensile strength and elongation, poor biocompatibility, incomplete absorption, etc., achieve high tensile strength, improve hydrophilicity and surface The degree of wetting, the effect of complete absorption
CN112336911AInactive Publication Date: 2021-02-09湖南博隽生物医药有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
湖南博隽生物医药有限公司
Publication Date
2021-02-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of a medical surgical suture. The method comprises the following steps of adding 5-hydantoin acetic acid modified polylysine, polyethylene glycol hydroxy acid modified polylactic acid, a sodium alginate-based polycaprolactone copolymer, gamma-cyclodextrin and hydroxybutyl methyl cellulose into a high-speed mixer according to a mass ratio; mixing for 20-30 minutes at the rotating speed of 70-90 r / min to obtain a mixture; then feeding the mixture into a double-screw extruder, granulating, cooling, drying and cutting to obtain master batch; carrying out melt spinning on the master batch to form a silk thread with the diameter of 0.02-0.05 mm; and putting the silk thread into medical alcohol to be disinfected for 2-3h; and finally, performing vacuumdrying to obtain the medical surgical suture. The prepared medical surgical suture has the advantages of being complete in absorption, high in tensile strength, good in biocompatibility and capable of promoting cell growth and has the advantages of sterilizing, diminishing inflammation and stopping bleeding.
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Description

technical field

[0001] The invention relates to the technical field of medical supplies, in particular to a medical surgical suture and a preparation method thereof. Background technique

[0002] Medical surgical suture refers to the special thread used for ligation hemostasis, suture hemostasis and tissue suture in surgical operation or trauma treatment. It plays an important role in the initial wound healing. Generally, it can be divided into two types: absorbable suture and non-absorbable suture. Non-absorbable suture does not degrade in the body. It is degraded by acid, alkali or enzyme. The degradation rate depends on the temperature, pH value of the tissue and the liquid environment around the suture. Therefore, absorbable surgical sutures are the development trend of medical surgical sutures and have important application prospects.

[0003] Absorbable sutures commonly used in the prior art can be divided into catgut, chemically synthesized sutures, and pure natural...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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