medical infusion tube

An infusion tube and inner layer technology, which is applied in the field of medical infusion tubes, can solve the problems of waste and high production cost, and achieve the effect of no distortion, not easy to delaminate, and excellent anticoagulant performance

Inactive Publication Date: 2011-12-07
李广英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has excellent bending resistance, is more conducive to the normal activities of patients during treatment, has good compatibility with human skin and medicinal liquid, and meets environmental protection requirements, but the production cost is high, and a large amount of ethylene-vinyl acetate copolymer materials are wasted

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] figure 1 , figure 2 A preferred embodiment of the invention is shown.

[0020] Such as figure 1 figure 2 As shown, the medical transfusion tube in the present embodiment is made up of inner layer 3, middle layer 2 and outer layer 1, and outer layer 1 is polyurethane (PU) material layer, and inner layer 3 is high-density polyethylene (HDPE) material layer, The middle layer is composed of cavities and hollow cylindrical fences alternately, the hollow cylindrical fence is made of ethylene-vinyl acetate copolymer material, and the hollow cylindrical fence is used as an adhesive layer for bonding the inner layer 3 and the outer layer 1 . The infusion tube in this embodiment can be applied to medical devices for long-term micro-accurate injection therapy, such as an insulin pump. The size requirements of the tube are as follows: the inner diamete...

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Abstract

The invention discloses a medical infusion tube, which comprises an inner layer, an outer layer and an intermediate layer bonding the inner layer and the outer layer, and the intermediate layer is composed of a hollow cavity and a hollow cylindrical fence alternately. The medical infusion tube saves a lot of raw materials, has low production cost, also has excellent bending resistance, is more conducive to the normal activities of patients during treatment, has good compatibility with human skin and medicinal liquid, and meets environmental protection requirements.

Description

technical field [0001] The invention relates to a medical device, more specifically, to a medical infusion tube. Background technique [0002] As a medical infusion tube, it must have good physical and chemical properties, such as good toughness, hydrolysis resistance, abrasion resistance, flex resistance, etc., and must also be non-toxic, such as no allergic reactions during use and non-mutagenic effects, as well as the need to show excellent biocompatibility, the natural rubber latex medical products used in the early days were eliminated due to the problems of protein allergy and carcinogen nitrosamine precipitation. [0003] Different polymer materials have their own characteristics, and the pipe fittings made may have completely different physical properties. For example, polyvinyl chloride tubing can be soft or hard, transparent or opaque, and its durability is suitable for most medical fields; polyethylene tubing is more rigid and chemically resistant, but it is a tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/14A61M39/08
Inventor 李广英
Owner 李广英
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