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An environmentally friendly and degradable composite material for disposable vaginal speculum

A technology of composite material and vaginal expander, which is applied in the field of environmentally friendly degradable composite materials, can solve the problems of not considering the degradation performance, illegal recycling, etc., and achieve the effects of avoiding bacterial pollution, improving application, and good antibacterial ability

Active Publication Date: 2021-03-26
台州市中心医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since the birth of disposable vaginal dilators (yin dilators), domestic and foreign manufacturers have used non-degradable plastics such as polystyrene or ABS to make them, and they have continued to this day. Disposable vaginal dilators made of plastic are cheaper than metal vaginal dilators. Dilators are cheap, light in weight, easy to carry, and are widely used especially to prevent cross-infection of diseases. However, after years of clinical practice, there are many problems in disposable vaginal dilators made of plastic: for example, there are reports Criminals take the opportunity to illegally recycle and reuse, but it will leave hidden dangers for cross-infection of diseases, which will lead to the spread of vaginitis, cervicitis, sexually transmitted diseases, hepatitis B, AIDS and other diseases
However, so far, there has not been much research on degradable materials used in vaginal dilators at home and abroad, and generally only adjustments have been made in the selection of materials, such as the use of degradable materials such as polylactic acid, without considering the degradation performance

Method used

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  • An environmentally friendly and degradable composite material for disposable vaginal speculum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The environment-friendly degradable composite material used for the disposable vaginal dilator in this embodiment includes the weight parts of the following components:

[0016] Degradable polymer material: 80; Polycaprolactone: 11; Polybutylene adipate: 5.0; Styrene-co-ethylene-co-butylene-co-styrene block copolymer: 2.0; Lubricated agent: 3.0; L-threonine: 0.8; serine: 2.0; silk fibroin fiber: 4.0; nano antibacterial particle titanium dioxide: 0.3; titanium stearate: 0.6; A mixture of lactic acid and polyhydroxypentyl butyrate, and the mass ratio of amino acid modified polylactic acid to polyhydroxypentyl butyrate is 1:4.

[0017] The method for forming the disposable vaginal dilator from the degradable composite material can be processed by conventional methods in the art. In this embodiment, the specific preparation method is as follows:

[0018] Select the raw materials according to the weight ratio of the ingredients in the above formula, add the dried raw materi...

Embodiment 2

[0020] The environment-friendly degradable composite material used for the disposable vaginal dilator in this embodiment includes the weight parts of the following components:

[0021] Degradable polymer material: 85; Polycaprolactone: 13; Polybutylene adipate: 3.0; Styrene-co-ethylene-co-butylene-co-styrene block copolymer: 1.5; Agent ethylene bis stearamide: 5.0; L-threonine: 0.5; Serine: 1.0; Titanium: 0.5; the degradable polymer material is selected from a mixture of amino acid modified polylactic acid and polyhydroxy pentyl butyrate, and the mass ratio of amino acid modified poly lactic acid and poly hydroxy pentyl butyrate is 1:5.

[0022] The specific preparation method of the disposable vaginal dilator of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

Embodiment 3

[0024] The environment-friendly degradable composite material used for the disposable vaginal dilator in this embodiment includes the weight parts of the following components:

[0025] Degradable polymer material: 82; Polycaprolactone: 12; Polybutylene adipate: 2.0; Styrene-co-ethylene-co-butylene-co-styrene block copolymer: 1.0; Lubricated Agent ethylene bis stearamide: 8.0; L-threonine: 0.6; Serine: 2.0; Silk fibroin fiber: 3.0; Nano antibacterial particle porous titanium dioxide: 0.4, the particle diameter of described porous titanium dioxide is 15nm; Stearic acid Titanium: 0.6; the degradable polymer material is selected from a mixture of amino acid modified polylactic acid and polyhydroxypentyl butyrate, and the mass ratio of amino acid modified polylactic acid to polyhydroxybutyrate is 1:4.5.

[0026] The specific preparation method of the disposable vaginal dilator of this embodiment is the same as that of Embodiment 1, and will not be repeated here.

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Abstract

The invention relates to an environment-friendly type degradable composite material for a one-time vaginal dilator, belongs to the technical field of medical materials, and aims to solve the problem that the existing degradation property is poor. The provided environment-friendly type degradable composite material for the one-time vaginal dilator comprises 80-85 parts of degradable high polymer material, 11-13 parts of polycaprolactone, 2.0-5.0 parts of polybutylene adipate, 1.0-2.0 parts of styrene-co-ethylene-co-butene-co-styrene block copolymer, 3.0-10 parts of lubricant, 0.5-0.8 part of L-threonine, 1.0-2.0 parts of serine, 2.0-4.0 parts of fibroin protein fiber, 0.3-0.6 part of nano-antibacterial particles and 0.5-0.6 part of stearic acid titanium; the degradable composite material isselected from an amino acid modified polylactic acid and polyhydroxylbutyrate valerate mixture. The environment-friendly type degradable composite material for the one-time vaginal dilator has good biodegradability, high mechanical strength and high antibacterial property.

Description

technical field [0001] The invention relates to an environment-friendly degradable composite material used for a disposable vaginal speculum, and belongs to the technical field of degradable medical materials. Background technique [0002] Disposable vaginal dilators (vaginal dilators) have been produced by domestic and foreign manufacturers using non-degradable plastics such as polystyrene or ABS, and have continued to this day. Disposable vaginal dilators made of plastic are cheaper than metal vaginal dilators. Dilators are cheap, light in weight, easy to carry, and are widely used especially to prevent cross-infection of diseases. However, after years of clinical practice, there are many problems in disposable vaginal dilators made of plastic: for example, there are reports Criminals took the opportunity to illegally recycle and reuse, but left hidden dangers for cross-infection of diseases, which would lead to the spread of vaginitis, cervicitis, sexually transmitted dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L67/02C08L53/02C08L89/00C08K13/04C08K7/24C08K5/098C08K5/17A61B1/32A61B1/303
CPCA61B1/303A61B1/32C08K2201/014C08L67/04C08L2201/06C08L2205/025C08L2205/035C08L2205/16C08L67/02C08L53/025C08L89/00C08K13/04C08K7/24C08K5/098C08K5/175
Inventor 瞿向东谢吉蓉
Owner 台州市中心医院
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