A kind of polypropylene/polylactic acid interwoven composite pelvic floor patch and preparation method thereof

A polylactic acid and polypropylene technology, which is used in tissue regeneration, prosthesis, medical science, etc., can solve problems such as stiffness in hand, achieve stable mechanical properties, reduce the amount of foreign bodies in the body, and reduce the effect of foreign body sensation

Inactive Publication Date: 2019-03-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the hernia mesh requires greater mechanical properties such as stretching and bursting, the mesh structure is tighter and feels stiffer

Method used

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  • A kind of polypropylene/polylactic acid interwoven composite pelvic floor patch and preparation method thereof
  • A kind of polypropylene/polylactic acid interwoven composite pelvic floor patch and preparation method thereof
  • A kind of polypropylene/polylactic acid interwoven composite pelvic floor patch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Patch weaving: use polypropylene monofilament (medical grade) with a diameter of 0.1mm and polylactic acid monofilament (medical grade) with a diameter of 0.12mm as raw materials, and the machine number is 20E, 2 bar raschel Weave on the warp knitting machine to make a patch with a hexagonal mesh structure, and the movement number of the second comb pad yarn is:

[0030] GB1: 2-1 / 3-4 / 2-1 / 2-3 / 1-0 / 1-2 / 1-0 / 2-3 / / one thread and one empty polypropylene monofilament

[0031] GB2: 2-3 / 1-0 / 2-3 / 2-1 / 3-4 / 3-2 / 3-4 / 2-1 / / one wear one empty polylactic acid monofilament

[0032] (2) Washing of patches: Gently rinse in cold water to remove surface impurities, and dry naturally at room temperature.

[0033] (3) Heat setting of the patch: the heat setting temperature is 130°C, and the heat setting time is 10 minutes.

[0034] The polypropylene pelvic floor patch prepared by the above process, such as figure 1 shown. Its main structural parameters are shown in Table 1.

[0035] The...

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Abstract

The invention relates to polypropylene / polylactic acid interwoven composite pelvic floor mesh and a preparation method thereof. The mesh is in a meshwork structure. Preparation of the mesh includes: weaving medical-grade polypropylene monofilaments and medical-grade polylactic acid monofilaments to obtain a mesh in the meshwork structure; flushing the mesh, naturally air-drying at normal temperature, and carrying out thermal setting, cooling, cutting and sterilizing to obtain the mesh. The mesh has the advantages such as low sense of foreign matters, high porosity, structural stability and good biocompatibility.

Description

technical field [0001] The invention belongs to the field of composite pelvic floor patch and its preparation, in particular to a polypropylene / polylactic acid interwoven composite pelvic floor patch and a preparation method thereof. Background technique [0002] Female pelvic floor dysfunction (PFD) is characterized by stress urinary incontinence (stress urinary incontinence, SUI), pelvic organ prolapse (pelvic organ prolapse, POP) and chronic pelvic pain (chronic pelvic pain, CPP) Etc. is a kind of gynecological disease of main symptom. A large number of studies have shown that pelvic floor mesh is an important pelvic floor tissue replacement, which can replace the weak and damaged pelvic floor fascia tissue. Compared with traditional hysterectomy, mesh has been gradually proven to improve the safety of surgery and the quality of life of patients [ACHTARI C, HISCOCK R, O'REILLY B A, et al. Risk factors for mesh erosion after transvaginal surgery using polypropylene(Atriu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/44A61L27/58A61L27/56
CPCA61L27/44A61L27/56A61L27/58A61L2430/34C08L23/12C08L67/04
Inventor 鲁瑶张佩华王聪儿陈南梁童晓文付少举王建军危惠敏欧阳一芹徐晓霞
Owner DONGHUA UNIV
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