Light and thin anti-shrinkage urinary incontinence sling mesh and preparation method thereof

A technology for urinary incontinence and sling, applied in the field of medical devices, can solve the problems of increased discomfort, low longitudinal elongation, and easily shrinkable and deformed tissues, and achieves the advantages of improving patient comfort, reducing foreign body sensation, and improving surgical safety. Effect

Pending Publication Date: 2021-12-28
威高奋威健康科技发展(上海)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sling mesh is a rectangular mesh with low longitudinal elongation, which can reduce some postoperative complications to a certain extent, but the mesh is too hard, which will increase the incidence of postoperative discomfort
In addition, sling products on the market are prone to shrinkage and deformation, resulting in pressure and cutting on the tissue, causing more and more incidents of postoperative pain in patients

Method used

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  • Light and thin anti-shrinkage urinary incontinence sling mesh and preparation method thereof
  • Light and thin anti-shrinkage urinary incontinence sling mesh and preparation method thereof
  • Light and thin anti-shrinkage urinary incontinence sling mesh and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0026] The embodiment of the present application also provides a method for preparing the aforementioned urinary incontinence sling mesh, comprising the following steps:

[0027] Two sets of yarn guide combs are installed on the warp knitting machine. Two groups of monofilaments are respectively threaded on the two yarn guide combs, and they are all arranged with one thread and one empty. The filaments are lapped longitudinally on the corresponding knitting needle; each monofilament of the second group is looped longitudinally on the two adjacent knitting needles of the corresponding first group of lapping needles. Laying the yarn in turn to form a loop, weaving to obtain a light and thin anti-shrinkage urinary incontinence sling mesh.

[0028] The urinary incontinence sling mesh provided by this application is light in weight and small in thickness, which can reduce the sensation of foreign body in the body. In addition, the mesh structure is stable and the elongation is low,...

Embodiment 1

[0049] Selection of raw materials for light and thin anti-shrinkage sling mesh:

[0050] In this embodiment, medical polypropylene monofilament is selected as a raw material, and its properties are shown in Table 1.

[0051] Table 1 Material selection and performance

[0052] Raw material type diameter (mm) Breaking strength (gf / d) Elongation at break (%) PP monofilament 0.13 5.2 18

[0053] Weaving process parameters of the light and thin anti-shrinkage sling mesh: the light and thin anti-shrinkage sling mesh is woven by a warp knitting machine, and the specific machine process is shown in Table 2.

[0054] Table 2 weaving process parameters

[0055]

[0056] Performance data of light and thin anti-shrinkage sling mesh:

[0057] The test method of breaking strength and elongation refers to GB / T 3923.1 "Textile Fabric Tensile Properties Part 1: Determination of Breaking Strength and Elongation at Break (Strip Method)", and the test method of t...

Embodiment 2

[0064] Selection of raw materials for light and thin anti-shrinkage sling mesh:

[0065] In this embodiment, medical polyvinylidene fluoride monofilament is selected as the raw material, and its properties are shown in Table 5.

[0066] Table 5 Material selection and performance

[0067] Raw material type diameter (mm) Breaking strength (gf / d) Elongation at break (%) PVDF monofilament 0.15 3 26

[0068] Weaving process parameters of the light and thin anti-shrinkage sling mesh: the light and thin anti-shrinkage sling mesh is woven by a warp knitting machine, and the specific machine process is shown in Table 6.

[0069] Table 6 weaving process parameters

[0070]

[0071] Performance data of light and thin anti-shrinkage sling mesh:

[0072] After post-processing such as sizing etc., carry out performance test (test method is the same as embodiment 1) to the mesh sheet that weaves according to described laying yarn track, test result is as fol...

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Abstract

The invention belongs to the field of medical instruments, and provides a light and thin anti-shrinkage urinary incontinence sling mesh and a preparation method thereof. The sling mesh is of a variable looping double-comb weave structure; the thickness is smaller than or equal to 0.39 mm; the sling mesh is formed by weaving two sets of medical non-absorbable synthetic monofilaments through different yarn laying tracks; the first group of monofilaments are arranged on a yarn guide comb in a one-penetrating and one-empty mode, and each monofilament is subjected to yarn laying and looping on a corresponding knitting needle in the longitudinal direction; and the second group of monofilaments are arranged on the other yarn guide comb in a one-penetrating and one-empty mode, and each monofilament is subjected to yarn laying and looping on two knitting needles which are adjacent to the left and right of the corresponding first group of yarn laying knitting needles in turn in the longitudinal direction. The urinary incontinence sling mesh provided by the invention is designed to be light, thin and anti-shrinkage, so that the incidence rate of foreign body sensation, erosion of tissues such as bladder and the like and postoperative pain can be remarkably reduced, and the operation safety and the comfort degree of a patient are improved.

Description

technical field [0001] The application belongs to the technical field of medical devices, and relates to a urinary incontinence sling, in particular to a light and thin anti-shrinkage urinary incontinence sling mesh and a preparation method thereof. Background technique [0002] Stress urinary incontinence is the involuntary leakage of urine from the urethral opening when abdominal pressure increases, such as sneezing, coughing, laughing, or exercising. The prevalence of stress urinary incontinence among adult females in my country is as high as 18.9%, and the prevalence among women aged 50 to 59 is as high as 28.0%, which seriously affects the work and life of patients. Vaginal tension-free mid-urethral sling surgery has become the first-line surgical treatment for stress urinary incontinence due to its high cure rate, minimally invasive and simple features. Surgery usually uses a synthetic mesh belt for tension-free midurethral suspension. The mesh belt is placed on the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04B21/16D04B21/08
CPCD04B21/16D04B21/08D10B2509/02
Inventor 隋纹龙张耀光吴刚李春明王建业殷敬华
Owner 威高奋威健康科技发展(上海)有限公司
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