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Manufacturing method of hydrogel artificial breast prosthesis

A technology of artificial breasts and manufacturing methods, applied in the fields of prostheses, false breasts, medical science, etc., can solve the problems of chest X-ray fluoroscopy, decreased tensile strength, high cost, etc., and achieve good biological adaptability and compatibility Enhanced safety performance and low production cost

Inactive Publication Date: 2004-12-15
GHANGZHOU WANHE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the artificial breast prosthesis commonly used in medical treatment includes silicone gel prosthesis and saline capsule prosthesis. The biggest advantage of the silicone gel prosthesis is that the feel and shape are realistic, but the silicone gel breast prosthesis and its manufacturing method have the following disadvantages : 1. The silicone rubber capsule of the silicone gel breast prosthesis and the filler silicone gel in it are the same type of material with similar structure, so the two will be compatible, that is, the capsule gradually dissolves with the gel of the filler. Combined, the silicone gel slowly penetrates out of the capsule, and the capsule wall gradually swells, loosens, thickens, and decreases in tensile strength under this penetration, and is finally dissolved, so the life of the prosthesis is short
2. Once the capsule is broken, the silicone gel will leak out and adhere to the surface of human tissue, which will slightly stimulate the tissue and cannot be degraded in the body
3. Silicone gel breast prosthesis cannot be penetrated well by X-rays, which brings difficulties to chest fluoroscopy for disease diagnosis
4. There is waste gas emission during the production process of silicone gel breast prosthesis, which will pollute the environment
5. The production process of silicone gel breast prosthesis is complex, high cost and expensive
The main disadvantage of the saline bladder prosthesis is poor hand feeling; there is high atomic number chlorine in the saline bladder, which affects the X-ray examination of the chest; mildew is very easy to occur in salt water, which poses a potential threat to the body; the saline bladder is also very Easy to rupture, once ruptured, the breast will shrink quickly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Take by weighing 255 grams (8.5wt%) of polyvinyl alcohol (PVA) resin, its degree of polymerization is 1750, 2745 grams (91.5wt%) of distilled water is placed in the flask, above-mentioned PVA resin is added into distilled water slowly, stirs while adding After the feeding is completed, continue to stir for 10-20 minutes, then heat up to 95°C, and continue to stir for 30 minutes after constant temperature. Filter the solution with a G3-G5 sand core funnel and pour it into the breast-shaped silicone rubber bag prepared in advance. The volume of the high molecular polymer solution in the capsule is 88-96% of the volume that can be accommodated in the capsule, and then the air bubbles in the solution in the capsule are removed, the silicone rubber capsule is sealed, and the sealed breast-shaped solution is housed. Put the silicone rubber bag into the breast formwork and seal it for packaging, and finally irradiate it with cobalt-60 gamma rays in the air at room temperature, ...

Embodiment 2

[0026] Take by weighing polyvinyl alcohol (PVA) resin 210 grams (7wt%) that polymerization degree is 1750, polyvinylpyrrolidone (PVP) resin 30 grams (1wt%), distilled water 2760 grams (92wt%), distilled water is placed in the flask, Slowly add the above PVA resin and PVP resin into distilled water, stir while adding, continue to stir for 10-20 minutes after the addition is complete, then heat up to 95°C, continue to stir for 30 minutes after constant temperature, and pour the solution into a G3-G5 sand core funnel After filtering, pour it into the pre-prepared breast-shaped silicone rubber capsule. The volume of the high molecular polymer solution poured into the capsule is 88-96% of the volume that can be accommodated in the capsule. Silicone rubber capsule, then put the breast-shaped silicone rubber capsule that has been sealed with the solution into the breast mold frame for sealing and packaging, and finally irradiate it with cobalt-60γ rays in the air at normal temperature...

Embodiment 3

[0028] Take by weighing polyvinyl alcohol resin 195 grams (6.5wt%) that the degree of polymerization is 1750, polyacrylamide (PAAm) resin 30 grams (1wt%), distilled water 2775 grams (92.5wt%), make by the method for embodiment 2, heat The temperature, stirring time, pouring amount are the same as in Example 2, and the absorbed dose of cobalt-60 gamma rays is 19.5kGy, and the product of the present invention is obtained.

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PUM

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Abstract

A production method of hydrogel artificial breast includes the following steps: using high polymer resin with polyvinyl alcohol as main material as raw material, placing it in distilled water, stirring and heating to obtain a solution whose concentration is 5-15 wt%, filtering and fillint it into breast-like silicon rubber bag which is then sealed, then encasing the sealed silinone rubber bag in a package with breast-like mould frame, irradiating with Co-60 gamma ray at normal temp. in the air, and its radiation absorbed dose is 10-30 KGy. Said invention is simple in production process, low in cost, has no pollution, the form of said invented artificial breast is beautiful, and the said artificial breast possesses high elasticity and good biological compatibility.

Description

【Technical field】 [0001] The invention relates to an artificial medical prosthesis, in particular to a medical biocompatible hydrogel artificial breast prosthesis and a manufacturing method thereof. 【Background technique】 [0002] At present, the artificial breast prosthesis commonly used in medical treatment includes silicone gel prosthesis and saline capsule prosthesis. The biggest advantage of the silicone gel prosthesis is that the feel and shape are realistic, but the silicone gel breast prosthesis and its manufacturing method have the following disadvantages : 1. The silicone rubber capsule of the silicone gel breast prosthesis and the filler silicone gel in it are the same type of material with similar structure, so the two will be compatible, that is, the capsule gradually dissolves with the gel of the filler. Combined, the silicone gel slowly seeps out of the capsule, and the capsule wall gradually swells, loosens, thickens, and decreases in tensile strength under t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/12A61L27/16A61L27/24
Inventor 张建军汤蓓琳
Owner GHANGZHOU WANHE MATERIAL
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