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Ultra-light large-mesh hernia repair patch and preparation method thereof

A large mesh, hernia repair technology, applied in the field of hernia repair patch, can solve the problems of limited wall compliance, numbness at the edge of the patch, poor abdominal wall compliance, etc., and achieves obvious proliferation, pain relief, and small deformation. Effect

Active Publication Date: 2020-12-04
日照天一生物医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mesh material used for abdominal hernia repair is a small-diameter weight mesh. Because the mesh is relatively hard, it is easy to form more scars, and the compliance of the abdominal wall after surgery is poor.
At the same time, about half of the patients will experience discomfort such as numbness at the edge of the patch and limited wall compliance when a larger patch is applied to the abdominal wall.

Method used

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  • Ultra-light large-mesh hernia repair patch and preparation method thereof
  • Ultra-light large-mesh hernia repair patch and preparation method thereof
  • Ultra-light large-mesh hernia repair patch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 2 As shown, the preparation method of the ultra-lightweight large-mesh hernia repair patch provided by the present invention includes the following steps: weaving into grid gray cloth → gray cloth cleaning → gray cloth shaping → cleaning and disinfection → cutting → shaping → combination → cleaning → inner Packaging → ethylene oxide sterilization → analysis, weaving into grid gray cloth is done on a warp knitting machine, using a bar to weave, and the medical polypropylene monofilament with a diameter of 0.10mm-0.20mm is unwound from the warp beam. According to a certain amount of warp let-off, it enters into the loop forming system, and according to the number of lapping yarns in the knitting chain warp and satin weave, the yarn guide needle makes regular lapping motions to form a mesh knitted fabric.

[0033] The gray cloth cleaning is to use an ultrasonic cleaning machine to clean the polypropylene mesh gray cloth. The cleaning temperature is 50°C-60°...

Embodiment 2

[0042]The preparation method of the ultra-light large-mesh hernia repair patch provided by the present invention includes the following steps: weaving into grid gray cloth → gray cloth cleaning → gray cloth shaping → cleaning and disinfection → cutting → shaping → combination → cleaning → inner packaging → ring Sterilized by ethylene oxide → analysis, weaving into mesh gray cloth is done on a warp knitting machine, using a bar to weave, and the medical polypropylene monofilament with a diameter of 0.125mm is unwound from the warp beam, according to a certain amount of warp let-off Enter the knitting system, according to the number of lapping yarns in the knitting chain warp and satin weave, the yarn guide needle makes regular lapping movements to form a mesh knitted fabric.

[0043] Gray cloth cleaning is to adopt ultrasonic cleaning machine to clean polypropylene mesh gray cloth, its cleaning temperature is 55 ° C, cleaning frequency is 90KHz, and cleaning time is 25min.

[0...

Embodiment 3

[0052] The preparation method of the ultra-light large-mesh hernia repair patch provided by the present invention includes the following steps: weaving into grid gray cloth → gray cloth cleaning → gray cloth shaping → cleaning and disinfection → cutting → shaping → combination → cleaning → inner packaging → ring Sterilized by ethylene oxide → analysis, weaving into grid gray cloth is done on the warp knitting machine, using a bar to weave, the medical polypropylene monofilament with a diameter of 0.120mm is unwound from the warp beam, according to a certain amount of warp let-off Enter the knitting system, according to the number of lapping yarns in the knitting chain warp and satin weave, the yarn guide needle makes regular lapping movements to form a mesh knitted fabric.

[0053] Gray cloth cleaning is to adopt ultrasonic cleaning machine to clean polypropylene mesh gray cloth, its cleaning temperature is 52°C, cleaning frequency is 85KHz, and cleaning time is 28min.

[0054...

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Abstract

The invention discloses an ultra-light large-mesh hernia repair patch and a preparation method thereof, belongs to the technical field of hernia repair patches, and particularly relates to an ultra-light large-mesh hernia repair patch and a preparation method thereof. The ultra-light large-mesh hernia repair patch is characterized in that the ultra-light large-mesh hernia repair patch is formed byweaving medical polypropylene monofilaments with the diameter of 0.10 mm-0.20 mm, the thickness is 0.29 mm-0.49 mm, the weight per unit area is 20 g / m<2>-40 g / m<2>, and the hole diameter is 2 mm-5 mm; large meshes are parallel hexagonal meshes, and a common edge is arranged between any two adjacent large meshes; and the hexagonal meshes are symmetrical about the central axis, the longitudinal hole diameter is 4 mm-5 mm, and the transverse hole diameter is 2 mm-3 mm. The patch has the positive effects that mesh pieces are thinner, the meshes are larger, the flexibility is better, the foreign body sensation is small, the pain of a patient is greatly relieved, and the comfort of the patient is improved.

Description

technical field [0001] The invention belongs to the technical field of hernia repair patch, in particular to an ultra-light large-mesh hernia repair patch and a preparation method thereof. Background technique [0002] Abdominal wall hernia is a common and frequently-occurring disease in general surgery. At present, artificial materials are generally used for tension-free hernia repair. This method can reduce postoperative pain, and has the advantages of quick recovery and low recurrence rate. Currently, the patch material used for abdominal hernia repair is a small-diameter heavy-weight patch. Because the patch is relatively hard, it is easy to form more scars, and the compliance of the abdominal wall after surgery is poor. At the same time, in about half of the patients, when a large mesh is applied to the abdominal wall, numbness at the edge of the mesh, limited wall compliance, and other discomforts will occur. Contents of the invention [0003] The purpose of the pre...

Claims

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Application Information

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IPC IPC(8): A61F2/00D04B21/12
CPCA61F2/0063D04B21/12A61F2240/002A61F2002/0068D10B2321/022Y02A40/81
Inventor 何志军李绍霞郭勇李彦霞
Owner 日照天一生物医疗科技有限公司