Environment-friendly energy-saving full-degradation disposable vaginal dilator and preparation method thereof

A vaginal expansion, environmental protection and energy-saving technology, applied in dilators, surgery, etc., can solve problems such as polluting the environment and threatening human health, and achieve cost savings, good biodegradability and biocompatibility, and good biodegradability Effect

Inactive Publication Date: 2014-04-23
SHANGHAI LINJING MEDICAL EQUIP
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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, manufacturers at home and abroad have used non-degradable plastics such as polystyrene or ABS to make them, and continue to this day. Plastic-made disposable vaginal dilators are cheaper than metal syringes and light in weight. , easy to carry, especially used to prevent cross-infection of diseases and other advantages, it is widely used, but after decades of clinical practice, there are many problems in disposable vaginal dilators made of plastic: disposable vaginal dilators after use , needs to be recycled and incinerated by specialized agencies. It is well known that polystyrene, ABS and other plastics will produce a lot of black smoke and release toxic and carcinogenic substances such as hydrogen chloride and dioxin when incinerated, which seriously pollutes the environment and threatens human health.
But so far, there is no research and report on environmental protection, energy saving, fully degradable disposable vaginal dilator and its preparation method at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1 Environmental protection and energy saving fully degradable disposable vaginal dilator and its preparation method, the steps and conditions are as follows:

[0025] Step 1: Vacuum drying: Dry the above-mentioned degradable polylactic acid substrate pellets with a molecular weight of 2 million at 45°C for 3.5 hours in vacuum and set aside;

[0026] The second step: injection molding: add the dried pellets into the hopper of the injection molding machine, and perform injection molding according to the specifications of the disposable vaginal dilator;

[0027] The barrel temperature is set as: feed inlet 150-165°C, compression section 155-170°C, metering section 160-175°C, nozzle 150-180°C;

[0028] Mold temperature: 10-40°C;

[0029] Injection pressure: 50-85Mpa;

[0030] Injection time: 4-5 seconds;

[0031] The holding time is: 0 seconds;

[0032] Screw speed: 160-180 rpm;

[0033] The third step is to assemble the product: assemble it into an environment...

Embodiment 2

[0034] Example 2 Environmental protection and energy saving fully degradable disposable vaginal dilator and its preparation method, the steps and conditions are as follows:

[0035] The first step: vacuum drying: add 3 parts of lubricant to the above-mentioned degradable polylactic acid substrate pellets with a molecular weight of 2 million;

[0036] At 55°C, vacuum dry for 4 hours and set aside;

[0037] The second step: injection molding: add the dried pellets into the hopper of the injection molding machine, and perform injection molding according to the specifications of the disposable vaginal dilator;

[0038] The barrel temperature is set as: feed inlet 155-170°C, compression section 155-175°C, metering section 165-175°C, nozzle 160-180°C;

[0039] Mold temperature: 20-40°C;

[0040] Injection pressure: 50-85Mpa;

[0041] Injection time: 5-6 seconds;

[0042] The holding time is: 0 seconds;

[0043] Screw speed: 160-180 rpm;

[0044] The third step is to assemble t...

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PUM

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Abstract

The invention provides an environment-friendly energy-saving full-degradation disposable vaginal dilator and a preparation method thereof. The vaginal dilator is characterized by comprising the following components: 100 parts of a degradable macromolecule main material and 0 or 2-5 parts of lubricant, wherein the degradable macromolecule main material is a degradable polylactic acid substrate which is equal to or greater than 2 million of molecular weight; the lubricant is ethylene bis stearamide (EBS for short). Various indexes of a full-degradation disposable injection syringe which is manufactured in an injection molding mode completely meet the requirements of the national medical industry standard of 'YY0336-2002 disposable sterile vaginal dilator', the injection syringe can be decomposed into H2O and CO2 by microorganisms under natural condition without combustion after being discarded, the environment is not polluted, and the purposes of pollution control, white pollution reduction, environment-friendliness and energy conservation are achieved.

Description

technical field [0001] The invention relates to the field of an environment-friendly, energy-saving, biodegradable disposable medical device, in particular to an environment-friendly, energy-saving and fully degradable disposable vaginal dilator and a preparation method thereof. Background technique [0002] Since the birth of disposable vaginal dilators, manufacturers at home and abroad have used non-degradable plastics such as polystyrene or ABS to make them, and continue to this day. Plastic-made disposable vaginal dilators are cheaper than metal syringes and light in weight. , easy to carry, especially used to prevent cross-infection of diseases and other advantages, it is widely used, but after decades of clinical practice, there are many problems in disposable vaginal dilators made of plastic: disposable vaginal dilators after use , needs to be recycled and incinerated through specialized institutions. It is well known that polystyrene, ABS and other plastics will prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08K5/20B29C45/76A61M29/00
Inventor 吴茜茜张星星林静
Owner SHANGHAI LINJING MEDICAL EQUIP
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