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High elasticity silica-gel breast prosthesis filler and preparation thereof

A breast prosthesis and silicone gel technology, applied in the field of breast prosthesis, can solve the problems of difficult adjustment of flexibility and shape retention, low elasticity, unnatural hand feeling, etc., and achieve a good natural shape, soft hand feeling and good elasticity. Effect

Inactive Publication Date: 2008-08-06
SHANGHAI KANGNING MEDICAL DEVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-elastic silicone gel breast prosthesis filler to solve the problems of low elasticity, unnatural hand feeling, softness and shape retention of breast prosthesis fillers commonly used at present.

Method used

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  • High elasticity silica-gel breast prosthesis filler and preparation thereof
  • High elasticity silica-gel breast prosthesis filler and preparation thereof
  • High elasticity silica-gel breast prosthesis filler and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Mix the two components A and B according to the weight ratio of 1:1, the total weight is 200g, then add 0.385g of crosslinking agent and 0.05g of catalyst, mix well, degas in vacuum, and then heat at 100±5℃ for 3h to vulcanize ; Wait for it to cool down, put it in a constant temperature box at 25°C and let it stand for 24 hours at a constant temperature, and measure the penetration of the silicone gel to be 8.7mm. Take part of the gel and degas it, inject it into the outer capsule of the breast prosthesis, heat and vulcanize it, and observe its feel and elasticity after cooling.

Embodiment 2

[0034] Mix the two components A and B according to the weight ratio of 2:1, the total weight is 200g, then add 0.365g of crosslinking agent and 0.05g of catalyst, mix well, degas in vacuum, and then heat at 100±5℃ for 3h to vulcanize ; Wait for it to cool down, put it in a constant temperature box at 25°C and let it stand for 24 hours at a constant temperature, and measure the penetration of the silicone gel to be 11.59mm. Take part of the gel and degas it, inject it into the outer capsule of the breast prosthesis, heat and vulcanize it, and observe its feel and elasticity after cooling.

Embodiment 3

[0036] Mix the two components A and B according to the weight ratio of 2:1, the total weight is 200g, then add 0.375g of crosslinking agent and 0.05g of catalyst, mix well, degas in vacuum, and then heat at 100±5℃ for 3h to vulcanize ; Wait for it to cool down, put it in a constant temperature box at 25°C and let it stand for 24 hours at a constant temperature, and measure the penetration of the silicone gel to be 10.82mm.

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Abstract

The invention discloses a high elastic silicon gel filling material for breast implants. An A component and a B component are mixed, and cross-linking agents are added into the mixing of the A component and the B component to form the gels with a semi-interpenetrating network structure through catalytic cross bridging; the A component is a linear siloxane polymer with a general formula I and the B component is a linear siloxane polymer with a general formula II. The filling material of the invention preferably solves the problems of low elasticity, unnatural hand feeling and uneasy regulation of softness and shape maintenance of common gels of breast implants by using the semi-interpenetrating network structure, thus obtaining the gels with natural characteristics and like body fat; the breast implants filled with the gels has good elasticity, soft and natural hand feeling and can keep better natural shapes after being implanted into human bodies.

Description

technical field [0001] The invention relates to a breast prosthesis used in plastic surgery, which is a high-elastic silicone gel breast prosthesis filler and a preparation method thereof. The gel can be used as a breast prosthesis filler and filled into the breast prosthesis Inside the outer capsule. Background technique [0002] At present, the breast prosthesis fillers commonly used are mainly silicone gel and physiological saline. Among them, physiological saline does not maintain its shape well and feels unnatural, while silicone gel is favored by the market because of its better imitation. The currently used silicone gel is generally formed by catalyzed cross-linking of siloxane containing unsaturated olefins and a cross-linking agent, but it generally has the following defects: firstly, its elasticity is low. Secondly, it feels unnatural and does not have the natural characteristics of fat. In addition, the softness and shape retention are not easy to control. If th...

Claims

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Application Information

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IPC IPC(8): A61L27/18A61F2/12
Inventor 景荣宽李锦蓓
Owner SHANGHAI KANGNING MEDICAL DEVICE
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