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Disposable polylactic acid composite material for injector

A composite material, polylactic acid technology, applied in syringes, infusion sets, etc., can solve problems such as defects in mechanical and physical properties, and achieve the effects of improved processing fluidity, stable performance, and good toughness

Inactive Publication Date: 2008-01-23
WEIGAO HLDG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its mechanical and phys

Method used

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Embodiment Construction

[0007] Below in conjunction with embodiment the present invention will be further described:

[0008] The modified polylactic acid composite material for disposable syringes of the present invention is composed of degradable polylactic acid (PLA), oligomer polyethylene glycol (PEG-400), oligomer polylactic acid (OLA), Citrate composition, every 100 parts of polylactic acid (PLA) in the formula contains 5-10 parts of polyethylene glycol (PEG-400), 6-15 parts of oligomer polylactic acid (OLA), 5-15 parts of citrate share.

[0009] The composition formula of each specific embodiment and performance index thereof are listed in Table 1:

[0010] As can be seen from Table 1, each embodiment obtains ideal Shore hardness, tensile strength and elongation at break. The polylactic acid (PLA) material of the present invention has high brittleness and insufficient toughness, and adding an appropriate amount of oligomer polyethylene glycol (PEG-400) can reduce the hardness and tensile str...

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Abstract

The invention relates to modified poly DL-lactic acid composite materials for injectors for single use, which consists of degradable PLA, oligomer Polyethylene Glycol (PEG-400), oligomer poly-lactic acid (OLA) and ATBC. Every 100 PLA contain 5 to 10 oligomer Polyethylene Glycol (PEG-400), 6 to 15 oligomer poly-lactic acid (OLA) and 5 to 15 ATBC. The invention has reasonable formula, stable property and good flexibility, elasticity and toughness, which can be produced in batches in a cleaning shop. The produced injectors for single use is fast in self-destruction speed, safe and reliable, and does not need to control the degradation rate and can destruct and degrade by itself.

Description

technical field [0001] The invention relates to a polymer material, in particular to an improved polylactic acid composite material for disposable syringes. Background technique [0002] We know that the disposable syringes used in the medical field at home and abroad are mainly made of petroleum-based processing. Although disposable use solves the problem of cross-infection, since disposable medical device products contain a large number of germs after use and are made of plastic, environmental pollution problems of disposable syringes also follow. Existing methods such as incineration not only waste valuable resources, but also produce a large amount of black smoke and hydrogen chloride gas, and also produce more toxic dioxins to pollute the environment; The single-use syringes are used for secondary use, causing cross-infection and endangering people's health. At present, the production of disposable syringes with degradable materials has become the goal of domestic and...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08K5/10A61M5/178
Inventor 殷敬华李忠志姜国伟戚国祥王丽岭
Owner WEIGAO HLDG
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