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Degradable disposable injection needle blade and preparation method

An injection needle blade, disposable technology, applied in the field of bioengineering of medical devices, to achieve the effects of large material saving, energy saving, production electricity consumption saving, and input cost saving

Active Publication Date: 2016-06-08
江苏奥博金医药科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But so far, there is no research and report on the degradable disposable injection needle blade and its preparation method both at home and abroad.

Method used

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  • Degradable disposable injection needle blade and preparation method

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Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1 Injection molding method of degradable disposable injection needle blade:

[0032] The first step, vacuum drying: the degradable substrate pellets of formula 1 or formula 2 or formula 3 were vacuum-dried at 50°C for 3.3 hours, and then used.

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

[0034] The barrel temperature is set as: feed inlet 150°C, compression section 160°C, metering section 170°C, nozzle 170°C; mold temperature: 25°C;

[0035] Injection pressure: 50-100Mpa;

[0036] Injection time: 44 seconds;

[0037] The holding time is: 0 seconds;

[0038] The screw speed is: 180 rpm;

[0039] The degradable disposable injection needle blade adopting the degradable base material of formula 1 or formula 2 or formula 3 is obtained.

[0040] The above-mentioned embodiment has described the biodegradable disposable injec...

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PUM

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Abstract

The present invention provides a degradable disposable injection needle blade and a preparation method. The degradable disposable injection needle blade is prepared by 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 150-165 DEG C, a metering section is of 155-170 DEG C, a nozzle is of 150-170 DEG C, the mold temperature is 20-45 DEG C, the injection pressure is 50-100 Mpa, the injection time is 39-45 seconds, the dwell time is 0 sec, and the screw speed is 180 rpm. The degradable disposable injection needle blade can completely degrade by landfill in the natural environment after being used without burning to achieve low-carbon, energy-saving, and environmental protection purposes.

Description

technical field [0001] The invention relates to the technical field of bioengineering of medical devices, in particular to a degradable disposable injection needle blade and a preparation method thereof. Background technique [0002] "Disposable injection needle blade", one end is used to install and connect the injection needle, and the other end is used for medical staff to hold, which is beneficial to push the injection needle into the blood vessel. "Disposable injection needle blade", commonly used are single blade and split type Double leaf and integral double leaf (also known as single leaf needle, split double leaf needle and integral double leaf needle), the current "disposable injection needle blade" is made of non-degradable petroleum plastics such as PP, PE, ABS, etc. It is widely used because of its relatively cheap price, but decades of clinical practice have proved that plastic disposable injection needle blades need to be incinerated after use. It is well know...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08K13/02C08K3/26C08K5/20B29C45/76
Inventor 吴茜茜任峰林静张星星
Owner 江苏奥博金医药科技有限公司
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