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Preparation method of nanometer anti-bacterial silica gel inner bushing artificial limb

A technology of inner lining and silica gel, which is applied in the field of medical devices, can solve problems such as skin infection, achieve the effects of increasing hygroscopicity, helping blood circulation, and increasing friction

Inactive Publication Date: 2012-05-23
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, while silica gel materials bring convenience to the physically disabled, there are also problems that need to be solved urgently. Because the surface of most silica gel materials is porous, it is easy to breed mold, and it is easy to cause skin infection during use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 100g of silica gel, 30g of acrylic fiber, 5g of dicyclohexyl phthalate, 4g of ethyl orthosilicate, 2g of dibutyltin dilaurate, and 2g of zeolite silver-loaded nano-antibacterial agent, and use a universal mixer or planetary mixer , first stir the silica gel, acrylic fiber, plasticizer and antibacterial agent at 20-50°C at a low speed of 0-6rpm for 5-20 minutes, then at a high speed of 20-60rpm for 20-50 minutes, and then at 15-50 Use three rollers to roll and disperse 5 to 10 times at ℃, quickly add crosslinking agent and catalyst, and stir at 20 to 60 rpm for 1 to 2 minutes with a planetary mixer at room temperature to obtain semi-finished nano-antibacterial silica gel, filter Finally, pour it into the pre-made gypsum positive type. After pouring under vacuum conditions, heat it to 20-50°C until the pouring material is solidified, remove the plaster, and trim the mouth shape to obtain a nano-antibacterial silicone inner bush. The tensile strength of the nano antib...

Embodiment 2

[0028] Take 200g of silica gel, 70g of acrylic fiber, 10g of dicyclohexyl phthalate, 8g of ethyl orthosilicate, 4g of dibutyltin dilaurate, and 4g of zeolite silver-loaded nano-antibacterial agent, and use a universal mixer or a planetary mixer , first stir the silica gel, acrylic fiber, plasticizer and antibacterial agent at 20-50°C at a low speed of 0-6rpm for 5-20 minutes, then at a high speed of 20-60rpm for 20-50 minutes, and then at 15-50 Use three rollers to roll and disperse 5 to 10 times at ℃, quickly add crosslinking agent and catalyst, and stir at 20 to 60 rpm for 1 to 2 minutes with a planetary mixer at room temperature to obtain semi-finished nano-antibacterial silica gel, filter Finally, pour it into the pre-made gypsum positive shape. After pouring under vacuum conditions, heat it to 20-50°C until the pouring material is solidified, remove the plaster, and trim the contour of the mouth shape to obtain a nano-antibacterial silicone inner sleeve prosthesis. The te...

Embodiment 3

[0031]Take 300g of silica gel, 100g of acrylic fiber, 15g of dicyclohexyl phthalate, 10g of ethyl orthosilicate, 5g of dibutyltin dilaurate, and 6g of zeolite silver-loaded nano-antibacterial agent, and use a universal mixer or a planetary mixer , first stir the silica gel, acrylic fiber, plasticizer and antibacterial agent at 20-50°C at a low speed of 0-6rpm for 5-20 minutes, then at a high speed of 20-60rpm for 20-50 minutes, and then at 15-50 Use three rollers to roll and disperse 5 to 10 times at ℃, quickly add crosslinking agent and catalyst, and stir at 20 to 60 rpm for 1 to 2 minutes with a planetary mixer at room temperature to obtain semi-finished nano-antibacterial silica gel, filter Finally, pour it into the pre-made gypsum positive shape. After pouring under vacuum conditions, heat it to 20-50°C until the pouring material is solidified, remove the plaster, and trim the contour of the mouth shape to obtain a nano-antibacterial silicone inner sleeve prosthesis. The t...

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PUM

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Abstract

The invention relates to a preparation method of a nanometer anti-bacterial silica gel inner bushing artificial limb in the technical field of medicinal apparatuses and instruments, which comprises the following steps of: mixing silica gel, acrylic fibers, a plasticizing agent and an anti-bacterial agent for reaction; heating and rolling nanometer anti-bacterial silica gel master batch to preparea silica gel dispersing material; adding a cross linking agent and a catalyst into the silica gel dispersing agent for rapidly stirring to prepare a nanometer anti-bacterial silica gel semi-finished product; filtering the nanometer anti-bacterial silica gel semi-finished product and then pouring on a plaster male mould in vacuum, and removing the plaster male mould after thermal setting to obtainthe nanometer anti-bacterial silica gel inner bushing artificial limb. A nanometer anti-bacterial silica gel inner bushing prepared by the method of the invention has excellent mechanical property and better anti-bacterial property.

Description

technical field [0001] The invention relates to a preparation method in the technical field of medical devices, in particular to a preparation method of a nano antibacterial silicone inner liner prosthesis. Background technique [0002] According to statistics, there are about 24 million people with physical disabilities in my country, 4 million with upper limbs and 6 million with lower limbs who need assembly. Appropriate installation of artificial limbs can not only bring spiritual comfort to these unfortunate people, but also compensate the functions of their limbs and put them into a better life and work. To reduce the frictional effect of the prosthetic socket on the residual limb, a residual limb cover is worn. At present, most of the prosthetic liners widely used in the market are foam boards. Due to the reason of the material itself and the unchangeable way of making it, its poor performance is determined. During the use of the handicapped, sweat, body temperature ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L27/34A61L27/54C08L83/00C08L33/20C08K13/06C08K9/02B29C39/02B29C39/22
Inventor 付建伟盛小海张冰金彩虹何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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