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Disposable medical equipment prepared from degradable substrate and method

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

Active Publication Date: 2015-01-28
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 equipment prepared from degradable substrate and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 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:

[0042] The first step, vacuum drying: the degradable substrate pellets of formula 1 were vacuum-dried at 50° C. for 3 hours, and then used.

[0043] The second step, injection molding: add the dried degradable substrate pellets of Formula 1 to an injection molding machine for injection molding.

[0044] The barrel temperature is set as: feed inlet 155°C, compression section 160°C, metering section 165°C, nozzle 155°C;

[0045] Mold temperature: 15°C;

[0046] Injection pressure: 50-70Mpa;

[0047] Injection molding cycle: 41 seconds;

[0048] The holding time is: 0 seconds;

[0049] The screw speed is: 180 rpm;

[0050] Disposable medical instruments such as degradable disposable fallopian tube extraction hook and extraction plate, disposable tweez...

Embodiment 2

[0051] Example 2 Disposable oral cavity impression tray, disposable tongue depressor, disposable oral mirror handle, disposable otoscope, disposable titanium holder, flushing head of disposable flushing device, disposable infusion set dosing device, Injection molding method of disposable infusion set clips and disposable injection needle blades:

[0052] The first step, vacuum drying: the degradable substrate pellets of formula 2 were vacuum-dried at 50° C. for 3 hours, and then used.

[0053] The second step, injection molding: add the dried formula 2 degradable substrate pellets to the injection molding machine for injection molding.

[0054] The barrel temperature is set as: feed inlet 160°C, compression section 165°C, metering section 170°C, nozzle 170°C;

[0055] Mold temperature: 15°C;

[0056] Injection pressure: 50-95Mpa;

[0057] Injection time: 43 seconds;

[0058] The holding time is: 0 seconds;

[0059] The screw speed is: 180 rpm.

[0060]Disposable medical ...

Embodiment 4

[0061] Embodiment 4 Disposable vaginal dilator, disposable cervical dilator, disposable blood vessel clamp, disposable mouthpiece, disposable breathing filter, disposable oropharyngeal airway, disposable anesthesia laryngoscope, disposable rhinoscope , Disposable bone nails, disposable umbilical cord clips, disposable nasopharyngeal biopsy forceps, disposable rectal and sigmoid colon biopsy forceps, and injection molding methods for disposable infusion set needles:

[0062] The first step, vacuum drying: the degradable substrate pellets of formula 4 were vacuum-dried at 50° C. for 3 hours, and then used.

[0063] The second step, injection molding: add the dried formula 4 degradable substrate pellets to the injection molding machine for injection molding.

[0064] 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;

[0065] Injection pressure: 50-100Mpa;

[0066] Injection cycle: 45 seco...

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Abstract

The invention provides disposable medical equipment prepared from a degradable substrate and a method. The degradable substrate used for the disposable medical equipment is composed of a degradable high polymer main material, and a reinforcing agent, etc. An injection molding process adopted in the invention comprises that: a feed inlet is at a temperature of 145-165DEG C, a compression section is at a temperature of 150-170DEG C, a metering section is at a temperature of 155-175DEG C, and a nozzle is at a temperature of 155-175DEG C; a mold is at a temperature of 10-45DEG C; the injection pressure is 45-100Mpa; the injection period is 36-58sec; the pressure-holding time is 0sec; and the screw rotation speed is 180 rpm / min. The obtained degradable disposable medical equipment has all performances in line with the requirements of national pharmaceutical industry standards for related products, and the injection molding temperature during production is far lower than that of petroleum-based plastics, thus saving electricity consumption effectively. The disposable medical equipment of the invention needs no burning after use, avoids environmental pollution, and can be completely degraded by microorganisms through a composting environment and other treatment, thus reaching the purposes of environmental protection and energy saving, safety and health, as well as human benefiting.

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): C08L67/04C08K3/26C08K5/20B29B9/06B29C47/92B29C45/76B29C48/92
CPCB29C47/92
Inventor 张星星林静
Owner 江苏奥博金医药科技有限公司
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