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Preparation device and method for non-woven high polymer material optilene mesh

A technology of a polymer material and a preparation device is applied in the field of preparation of a non-woven polymer material hernia patch, which can solve the problems of low incidence of chronic pain and the like, and achieve good abdominal wall compliance, flexible size and good tissue length. sexual effect

Inactive Publication Date: 2015-10-07
武汉蓝普医品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The results also found that laparoscopic inguinal hernia repair with non-woven and woven mesh is effective, but the incidence of chronic pain after non-woven mesh is lower than that of woven mesh

Method used

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  • Preparation device and method for non-woven high polymer material optilene mesh
  • Preparation device and method for non-woven high polymer material optilene mesh
  • Preparation device and method for non-woven high polymer material optilene mesh

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] After the medical polypropylene material is sliced, it is melted at 250°C and the air pressure is 4kg / cm 2 pressure-feeding melt;

[0038] After the melt is filtered and accurately measured, it is sent to the spinneret die;

[0039] The melt is extruded from the spinneret hole after passing through the entrance area, the hole flow area and the puffing area;

[0040] When the melt expands, under the drafting effect of the high-speed hot air flow at 260°C on both sides, the melt stream is rapidly thinned, and the room temperature air on both sides makes the melt cool and solidify into ultra-fine fibers;

[0041] The drawn and solidified fibers are blown to the melt-blown net (condensed net curtain) under the action of airflow, and the fibers are bonded to form a net by themselves;

[0042] Take the bonded mesh out of the melt blown nozzle for 23cm and wind it on the receiving roller;

[0043] Cut the mesh.

Embodiment 2

[0045] After the medical polypropylene material is sliced, it is melted at 250°C and the air pressure is 4kg / cm 2 pressure-feeding melt;

[0046] After the melt is filtered and accurately measured, it is sent to the spinneret die;

[0047] The melt is extruded from the spinneret hole of the die head after passing through the entrance area, hole flow area and puffing area respectively;

[0048] When the melt expands, under the drafting effect of the high-speed hot air flow at 280°C on both sides, the melt stream is rapidly thinned, and the room temperature air on both sides makes the melt cool and solidify into ultra-fine fibers;

[0049] The drawn and solidified fibers are blown to the melt-blown net (condensed net curtain) under the action of airflow, and the fibers are bonded to form a net by themselves;

[0050] Take the bonded mesh out of the melt blown nozzle for 23cm and wind it on the receiving roller;

[0051] Cut the mesh.

Embodiment 3

[0053] After the medical polypropylene material is sliced, it is melted at 250°C and the air pressure is 4kg / cm 2 pressure-feeding melt;

[0054] After the melt is filtered and accurately measured, it is sent to the spinneret die;

[0055] The melt is extruded from the spinneret hole of the die head after passing through the entrance area, hole flow area and puffing area respectively;

[0056]When the melt expands, under the drafting effect of the high-speed hot air flow at 300°C on both sides, the thin stream of the melt is rapidly thinned, and the air at room temperature on both sides makes the melt cool and solidify into ultra-fine fibers;

[0057] The drawn and solidified fibers are blown to the melt-blown net (condensed net curtain) under the action of airflow, and the fibers are bonded to form a net by themselves;

[0058] Take the bonded mesh out of the melt blown nozzle for 23cm and wind it on the receiving roller;

[0059] Cut the mesh.

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Abstract

The invention discloses a preparation device for a non-woven high polymer material optilene mesh. The preparation device comprises a storage hopper (1), a screw extruder (2), a melt-blow net (5), a melt-blow nozzle (7), a winding roller (8), a spinning case body (3) and a spinneret pump (4). Meanwhile, the invention further discloses a method for preparing the non-woven high polymer material optilene mesh by utilizing the preparation device of the claim 1, the method comprises the eight steps of fusant preparation, filtration, metering, extrusion, drafting and cooling, net forming, mesh winding and cropping. By means of the technology, the defect that when a woven high polymer material mesh is implanted, shrinking, pains and infection happen can be overcome, and meanwhile good biological compatibility of materials can be maintained.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a method for preparing a nonwoven polymer material hernia patch, and more specifically to a method for preparing a nonwoven polymer material hernia patch for inguinal hernia repair. Background technique [0002] Tension-free herniorrhaphy of inguinal hernia using artificial materials has been accepted and used by most surgeons. Laparoscopic inguinal hernia repair is a kind of tension-free hernia repair. After more than ten years of development, the technology has become relatively mature. The application of these materials and the development of surgical methods have reduced the recurrence rate of hernia to 3% to 5%, and some hernia centers abroad are even lower than 1%. At present, more scholars pay attention to the complications such as chronic pain, local hardness and foreign body sensation after patch implantation. [0003] At present, whether it is open surgery or laparoscopic...

Claims

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Application Information

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IPC IPC(8): D04H1/4382D04H1/732D01D13/00A61F2/00
Inventor 刘洪涛沈乔李辉李先华沈传宝
Owner 武汉蓝普医品有限公司
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