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Degradable disposable oropharyngeal airway and preparation method

An oropharyngeal airway, a disposable technology, applied in the field of bioengineering of medical devices, to achieve the effect of saving input costs, saving large materials and energy, and saving production power consumption

Active Publication Date: 2016-04-27
江苏奥博金医药科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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But so far, there is no research and report on the degradable disposable oropharyngeal airway and its preparation method at home and abroad.

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  • Degradable disposable oropharyngeal airway and preparation method

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Embodiment 1

[0031] Example 1 Injection molding method of degradable disposable oropharyngeal airway:

[0032] The first step, vacuum drying: the degradable substrate pellets of formula 1, formula 2 or formula 3 were vacuum-dried at 80°C for 3 hours, and then used.

[0033] The second step, injection molding: add the dried degradable substrate pellets of formula 1, formula 2 or formula 3 to an injection molding machine for injection molding.

[0034] The feed inlet is 150°C, the compression section is 160°C, the metering section is 170°C, and the nozzle is 165°C;

[0035] Mold temperature: 15-30°C;

[0036] Injection pressure: 45-80Mpa;

[0037] Injection time: 44 seconds;

[0038] The holding time is: 0 seconds;

[0039] The screw speed is: 180 rpm;

[0040] A degradable disposable oropharyngeal airway using the degradable base material of formula 1, formula 2 or formula 3 was obtained.

[0041] The above-mentioned embodiments have described the biodegradable disposable oropharyngea...

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Abstract

The present invention provides a degradable disposable oropharyngeal airway and a preparation method. The degradable disposable oropharyngeal airway is composed of a degradable polymer main ingredient of a degradable substrate and an enhancer. The injection molding process includes that: a feed inlet is of 145-165 DEG C, a compression section is of 155-170 DEG C, a metering section is of 160-175 DEG C, a nozzle is of 160-170 DEG C, the mold temperature is 15-30 DEG C, the injection pressure is 45-80 Mpa, the injection molding time is 41-45 seconds, the dwell time is 0 sec, and the screw speed is 180 rpm. The used degradable disposable oropharyngeal airway can completely degrade in the natural environment by landfill without burning to achieve low-carbon, energy-saving and environmental protective purposes.

Description

technical field [0001] The invention relates to the technical field of bioengineering of medical devices, in particular to a degradable disposable oropharyngeal airway and a preparation method. Background technique [0002] The existing disposable oropharyngeal airway is made of non-degradable petroleum plastic, which is widely used because of its relatively cheap price, especially for one-time use to prevent cross-infection of diseases, etc., but after decades of clinical Practice has proved that there are many problems in plastic disposable oropharyngeal airway, for example, it needs to be incinerated after use. It is well known that plastic will produce a lot of black smoke when incinerated, and at the same time release toxic and carcinogenic substances such as hydrogen chloride and dioxin, causing serious pollution. damage the environment and damage human health and the health of other animals and plants. Therefore, the research and development of degradable disposable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08K9/00C08K3/26C08K5/20B29C45/76
Inventor 吴茜茜林静
Owner 江苏奥博金医药科技有限公司
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