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Degradable material for rhinoscope and its manufacturing method

A technology for degrading materials and rhinoscopes, applied in rhinoscope, application, diagnosis and other directions, to achieve the effects of detailed and reasonable preparation process, good biocompatibility, and good clinical practical value

Active Publication Date: 2016-02-24
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 degradable materials and preparation methods for rhinoscope at home and abroad.

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  • Degradable material for rhinoscope and its manufacturing method

Examples

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Embodiment 1

[0026] Example 1 Injection molding method of degradable nose lens:

[0027] The first step is vacuum drying: the degradable substrate pellets of formula 1, formula 2 or formula 3 are vacuum dried for 4.30 hours at 55°C, and then set aside.

[0028] The second step is injection molding: adding the dried degradable substrate pellets of formula 1, formula 2, or formula 3 to an injection molding machine for injection molding.

[0029] The barrel temperature is set to: 155°C at the feed inlet, 165°C in the compression section, 175°C in the metering section, and 175°C in the nozzle;

[0030] The mold temperature is: 40℃;

[0031] The injection pressure is: 75pa in the first section, 80Mpa in the second section, and 50Mpa in the third section;

[0032] Injection cycle: 50 seconds;

[0033] Holding time: 0 seconds;

[0034] The screw speed is: 180 rpm.

[0035] A degradable nasal lens using a degradable substrate of formula 1, formula 2 or formula 3 is obtained.

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Abstract

The present invention provides a degradable material for rhinoscope and a preparation method. The substrate of the degradable rhinoscope is prepared from a degradable polymer main ingredient and an enhancer. The injection molding process includes: a feed inlet of 155-165 DEG C, a compression segment of 160-170 DEG C, a metering section of 165-180 DEG C, a nozzle of 165-180 DEG C; a mold of 20-30 DEG C; the injection pressure of 75 Mpa for a first level, 80 Mpa for a second level and 50 Mpa for a third level; a molding cycle of 50 seconds; dwell time of 0 sec; and a screw speed of 180 r / min. The performance of the degradable rhinoscope is in line with the national industry standards YY / T0189-1994 rhinoscope. The degradable rhinoscope can completely replace the disposable rhinoscope by modified polystyrene and other plastics. The waste rhinoscope does not need incineration and does not pollute the environment, can completely degrade by landfill in the natural environment, and achieves the purposes of low carbon, environmental protection, and energy saving.

Description

Technical field [0001] The invention belongs to the field of environmentally friendly, energy-saving and degradable disposable medical devices, in particular to a degradable material for a nasal lens and a preparation method. Background technique [0002] At present, the noses used in clinical ENT clinics of hospitals are made of stainless steel and other metal materials and disposable noses made of modified polystyrene, ABS and other plastics. The advantages of stainless steel noses are beautiful appearance and durable, but the disadvantage is metal Rhinoscopes are expensive and repeatedly used through multiple processes such as stamping and riveting. Cleaning and disinfection are not only time-consuming, but also worrying about the difficulty of disinfection to kill viruses such as hepatitis B, and there is a hidden danger of disease cross-infection. So people began to invent "disposable noses", such as the Chinese patent number 94223736.6 "disposable nose", 95217820.6 "disposa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08K3/26B29C45/78B29C45/77A61B1/233
Inventor 吴茜茜
Owner 江苏奥博金医药科技有限公司
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