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Medical suture and preparation method thereof

A suture and suture technology, applied in the field of medical materials, can solve the problems of bacterial infection at the suture, inconvenient connection operation, bacterial infection of the suture, etc., achieve good biocompatibility, overcome weak connection, and simplify the preparation process Effect

Pending Publication Date: 2021-08-20
CHANGCHUN SINOBIOMATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the operator, the connection between the two is inconvenient to operate, and it takes a long time; and the connection between the suture and the needle is often not strong enough, and it is easy to disconnect during the suturing process, thereby affecting the doctor's operation. bring a lot of inconvenience
[0004] Most of the existing sewing needles are stainless steel needles. Stainless steel is a non-absorbable material with poor biocompatibility. During use, it is easy to cause inflammation in the body, which in turn affects the healing of the body.
In addition, the connection process between the suture needle and the suture thread is easy to introduce bacteria, and the bacteria are easy to grow at the joint between the suture thread and the suture needle, which will cause the suture thread to be infected by bacteria, and then lead to the problem of bacterial infection at the suture

Method used

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  • Medical suture and preparation method thereof

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preparation example Construction

[0020] In the second aspect, the embodiment of the present invention provides a method for preparing the medical suture described in the first aspect of the embodiment of the present invention. The preparation method includes the following steps: performing integral spinning of the absorbable material to obtain a suture wire; A sewing needle portion is formed at the end of the wire material to obtain a sewing thread integrally formed with needle and thread. Thus, the preparation process of the medical suture is simplified.

[0021] In a further embodiment, the absorbable material is integrally spun to obtain a suture thread, which includes: making absorbable primary fibers with absorbable materials; cooling the absorbable primary fibers, and drawing them with hot water in sequence treatment, hot air drafting treatment and heat setting treatment to obtain absorbable wire; cutting the absorbable wire to obtain suture wire with a preset length. Thus, the suture thread can be pro...

Embodiment 1

[0032] A medical suture, comprising a sewing needle part 10 and a suture thread part 20, the sewing needle part 10 and the suture thread part 20 are integrally formed by polylactic acid (polylactide); the connection of the sewing needle part and the suture thread part The strength is equal to the tensile strength of the suture part.

[0033] The preparation method of a medical suture comprises the following steps: S101, making absorbable primary fibers by using polylactic acid, and sequentially subjecting the absorbable primary fibers to cooling treatment, hot water drawing treatment, hot air drawing treatment and heat setting treatment to obtain Absorbable wire; afterward, the absorbable wire is cut to obtain a suture wire with a preset length. S102, dissolving polylactic acid in dichloromethane to obtain a volatile glue solution; coating the end of the wire with the volatile glue solution, and forming an adhesive section after the dichloromethane in the volatile glue solutio...

Embodiment 2

[0038]A medical suture, comprising a needle part and a suture part, the needle part and the suture part are integrally formed by polylactide glycolide; the connection strength of the needle part and the suture part is equal to that of the suture part of tensile strength. Wherein, polylactide glycolide is formed by polymerizing lactide monomer and glycolide monomer according to the ratio of 90:10.

[0039] A method for preparing medical sutures, comprising the following steps: S101, making absorbable primary fibers from polylactide-glycolide, and sequentially subjecting the absorbable primary fibers to cooling treatment, hot water drawing treatment, hot air drawing treatment and heat treatment. Shaping processing to obtain absorbable wires; and then cutting the absorbable wires to obtain suture wires with preset lengths. S102, placing the end of the wire rod in a heating zone for heating operation, and the heating operation is not completed until the temperature of the end por...

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Abstract

The invention discloses a medical suture and a preparation method thereof. The medical suture comprises a suture needle part and a suture part. The suture needle part and the suture part are integrally formed by absorbable materials. The connection strength of the suture needle part and the suture part is equal to the tensile strength of the suture part. According to the embodiment of the invention, the suture needle part and the suture part are made of absorbable materials, so that the biocompatibility of the medical suture can be effectively improved, thereby solving the problem of adverse reaction caused by introduction of a suture needle in the stitching process with medical sutures in the prior art. The suture needle part and the suture part are integrally formed, thereby solving the problem of connection between the suture needle part and the suture part in the prior art, enhancing operation convenience, and improving safety of the medical suture in use.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a medical suture and a preparation method thereof. Background technique [0002] Medical suture refers to the special medical thread used for ligation hemostasis, suture hemostasis and tissue suture in surgical operation. An ideal medical suture is relatively stable in vivo, less prone to breakage and less tissue reaction. [0003] When existing medical sutures are in use, they need to be used in conjunction with sewing needles. In the preparation stage before use, it is necessary to connect the suture thread with the sewing needle. For the operator, the connection between the two is inconvenient to operate, and it takes a long time; and the connection between the suture and the needle is often not strong enough, and it is easy to disconnect during the suturing process, thereby affecting the doctor's operation. Bring a lot of inconvenience. [0004] Most of the exis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/06
CPCA61B17/06166A61B17/06066A61B2017/00526A61B2017/0619
Inventor 马嘉丽崔立国高战团崔毅庄秀丽
Owner CHANGCHUN SINOBIOMATERIALS
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