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Disposable medical devices and methods prepared from degradable substrates

A medical device and disposable technology, applied in the field of degradable substrates, to achieve the effects of saving input costs, solving environmental pollution, and saving electricity consumption

Active Publication Date: 2016-02-24
江苏奥博金医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from our current research and practice, not all disposable medical devices made of petroleum-based plastics can be made of degradable materials, but some of them, but so far, there is no domestic and foreign research on the use of degradable materials by the present invention. Report on disposable medical devices and methods prepared from base materials

Method used

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  • Disposable medical devices and methods prepared from degradable substrates

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1 Injection molding method of degradable disposable fallopian tube extraction hook and extraction plate, disposable tweezers, disposable uterine probe, two-way and three-way valve of disposable infusion set:

[0041] The first step, vacuum drying: the degradable substrate pellets of formula 1 were vacuum-dried at 50° C. for 3 hours, and then used.

[0042] The second step, injection molding: add the dried degradable substrate pellets of Formula 1 to an injection molding machine for injection molding.

[0043] The barrel temperature is set as: feed inlet 155°C, compression section 160°C, metering section 165°C, nozzle 155°C;

[0044] Mold temperature: 15°C;

[0045] Injection pressure: 50-70Mpa;

[0046] Injection molding cycle: 41 seconds;

[0047] The holding time is: 0 seconds;

[0048] The screw speed is: 180 rpm;

[0049] Disposable medical instruments such as degradable disposable fallopian tube extraction hook and extraction plate, disposable tweez...

Embodiment 2

[0050] Embodiment 2 Disposable oral cavity impression tray, disposable tongue depressor, disposable oral mirror handle, disposable otoscope, rinse head of disposable irrigator, disposable infusion set dosing device, disposable infusion set clip, Injection molding method of disposable injection needle blade:

[0051] The first step, vacuum drying: the degradable substrate pellets of formula 2 were vacuum-dried at 50° C. for 3 hours, and then used.

[0052] The second step, injection molding: add the dried formula 2 degradable substrate pellets to the injection molding machine for injection molding.

[0053] The barrel temperature is set as: feed inlet 160°C, compression section 165°C, metering section 170°C, nozzle 170°C;

[0054] Mold temperature: 15°C;

[0055] Injection pressure: 50-95Mpa;

[0056] Injection time: 43 seconds;

[0057] The holding time is: 0 seconds;

[0058] The screw speed is: 180 rpm.

[0059] Obtain the degradable disposable oral impression tray, di...

Embodiment 3

[0060]Example 3 Disposable vaginal dilator, disposable cervical dilator, disposable vascular clamp, disposable mouthpiece, disposable oropharyngeal airway, disposable anesthesia laryngoscope, disposable rhinoscope, disposable umbilical cord clamp, Injection molding method of disposable nasopharyngeal biopsy forceps, disposable rectum and sigmoid colon biopsy forceps, and needles of disposable infusion sets:

[0061] The first step, vacuum drying: the degradable substrate pellets of formula 4 were vacuum-dried at 50° C. for 3 hours, and then used.

[0062] The second step, injection molding: add the dried formula 4 degradable substrate pellets to the injection molding machine for injection molding.

[0063] The barrel temperature is set as: feed inlet 160°C, compression section 165°C, metering section 170°C, nozzle 175°C; mold temperature: 20°C;

[0064] Injection pressure: 50-100Mpa;

[0065] Injection molding cycle: 45 seconds;

[0066] The holding time is: 0 seconds;

[...

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Abstract

The present invention provides a disposable medical apparatus and instrument prepared by a degradable substrate and a method. The degradable disposable medical apparatus and instrument is prepared by a degradable polymer ingredient and an enhancer. The injection molding process includes that: a feed inlet is of 145-165 DEG C, a compression segment is of 150-170 DEG C, a metering segment is of 155-175 DEG C, a nozzle is of 155-175 DEG C, the mold temperature is 10-45 DEG C, the injection pressure is 45-100 Mpa, the molding cycle is 36-58 seconds, the dwell time is 0 sec, and the screw speed is 180 rpm. The performances of the degradable disposable medical apparatus and instrument are in accordance with the requirements of the national pharmaceutical industry standard related products, and the production injection molding temperature is much lower than that of petroleum-based plastics, so the electricity consumption is effectively saved. The used disposable medical apparatus and instrument does not need burning, preventing the pollution of the environment, and can be completely degraded by microorganisms by composting and other processing. The purposes of environmental protection and energy saving, safety and health, and benefiting mankind are achieved.

Description

technical field [0001] The invention relates to the field of environment-friendly and energy-saving medical devices, in particular to a method for preparing a degradable base material of a disposable medical device and using the base material to prepare a disposable medical device. Background technique [0002] So far, the vast majority of disposable medical devices used at home and abroad are made of non-degradable plastics such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), ABS, and AS. However, after decades of clinical practice, it has been proved that disposable medical devices made of plastic do have many problems, especially that they need to be incinerated after use. Now everyone knows that the large amount of black smoke produced by plastic incineration is very polluting to the environment. 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 arseni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08K3/26B29C47/92B29C45/76B29C48/92
CPCB29C48/911B29C48/0022B29C48/04
Inventor 张星星林静
Owner 江苏奥博金医药科技有限公司
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