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Environment-friendly pollution control full-degradable disposable medical device base material and manufacturing method thereof

A medical device, disposable technology, applied in the field of environmental protection and pollution control fully degradable disposable medical device base material and manufacturing, to achieve the effect of saving electricity consumption and input cost

Inactive Publication Date: 2015-07-01
SHANGHAI LINJING MEDICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But judging from our current research and practice, not all disposable medical device base materials made of petroleum-based plastics can be made of degradable materials, but some of them, and so far, there is no research on environmental protection by the present invention at home and abroad. Report on substrates and manufacturing methods of pollution-controlling and degradable disposable medical devices

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The invention provides a fully degradable disposable cervical dilator and a preparation method, the steps and conditions are as follows:

[0031] Step 1: Vacuum drying: Dry the above-mentioned pure polylactic acid substrate pellets with a molecular weight equal to or greater than 2 million at 45-55°C for 3-6 hours in a vacuum, and set aside;

[0032] 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 cervical dilator;

[0033] 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;

[0034] Mold temperature: 10-40°C;

[0035] Injection pressure: 50-85Mpa;

[0036] Injection time: 4-5 seconds;

[0037] The holding time is: 0 seconds;

[0038] Screw speed: 160-180 rpm;

[0039] The third step is to assemble the product.

[0040] In addition to the above-me...

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PUM

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Abstract

The invention provides an environment-friendly pollution control full-degradable disposable medical device base material and a manufacturing method thereof. The environment-friendly pollution control full-degradable disposable medical device base material is characterized by being prepared from a full-degradable macromolecule main material which is a pure polylactic acid base material with molecular weight equal to or greater than two millions. The full-degradable base material can be used for manufacturing the following disposable medical devices: a disposable cervical dilator, a disposable uterine probe, a disposable uterine curet, a disposable vagina dilator, a disposable intrauterine device extractor, a disposable fallopian tube pick-up hook, a disposable fallopian tube pick-up plate, a disposable cervix uterus biopsy sampler, a disposable umbilical clamp, a disposable tongue depressor, a disposable bite block, a disposable oropharynx air passage, a disposable anaesthetic laryngoscope, a disposable rhinoscope, a disposable otoscope, a disposable anoscope, a disposable rectum, a sigmoid colon biopsy forceps, a disposable nasopharynx biopsy forceps, a purging head of a disposable flusher, a disposable surgical knife handle, a disposable oral cavity impression tray and the like. The used disposable medical devices do not need to be incinerated, can be treated in compost environments and fully degraded by microorganisms, thus achieving the purposes of environmental protection, energy conversation, no environment pollution, safety, health, benefit of mankind and the like.

Description

technical field [0001] The invention relates to the field of environment-friendly degradable medical devices, in particular to an environment-friendly pollution control fully degradable disposable medical device base material and a manufacturing method. Background technique [0002] So far, the substrates of disposable medical devices used at home and abroad are basically made of petroleum-based incompletely degradable plastics such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), ABS, and AS. However, decades of clinical practice have proved that disposable medical devices made of petroleum-based plastics do have many problems, especially the waste after use that needs to be incinerated. Now everyone knows that the large amount of black smoke produced by plastics when incinerated is very polluting. At the same time, it will release "dioxin" and other toxic and carcinogenic substances suspended in the air. "Dioxin" is very toxic, 900 times that of arsenic....

Claims

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Application Information

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IPC IPC(8): C08L67/04B29C45/76B29C45/77B29C45/78
Inventor 吴茜茜张星星林静
Owner SHANGHAI LINJING MEDICAL EQUIP
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