CN201179269Y - Medical transfusion composite tube - Google Patents
Medical transfusion composite tube Download PDFInfo
- Publication number
- CN201179269Y CN201179269Y CNU2008200923986U CN200820092398U CN201179269Y CN 201179269 Y CN201179269 Y CN 201179269Y CN U2008200923986 U CNU2008200923986 U CN U2008200923986U CN 200820092398 U CN200820092398 U CN 200820092398U CN 201179269 Y CN201179269 Y CN 201179269Y
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- multiple tube
- material layer
- medical infusion
- polyurethane
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Abstract
The utility model relates to a medical infusion composite pipe which comprises an inner layer, an outer layer and a middle layer which bonds the inner layer and the outer layer. The middle layer is an ethylene-vinyl acetate copolymer (EVA) material layer; the middle layer is a high-density polyethylene (HDPE) material layer; the outer layer is a polyurethane (PU) material layer; or the inner layer is a polyurethane (PU) material layer and the outer layer is a polyethylene (PE) material layer. The composite pipe has excellent flexural folding resisting performance and thus is conducive to normal activities of the patients during treatment and use, has good compatibility with human body and fluid medicine, has no toxicity, can be used for a long time, does not contain polyvinyl chloride (PVC) material, and avoids the hazards of plasticizer to human health.
Description
Technical field
This utility model relates to a kind of medical equipment, more particularly, relates to a kind of medical infusion multiple tube.
Background technology
Must possess good physical and chemical performance as medical tube for transfusion, as possessing good toughness, hydrolytic resistance, wearability, flex stiffiness etc., also must possess avirulence in addition, as anaphylaxis in use not occurring and not having the aberration inducing effect, and need show excellent biocompatibility, the early stage Heveatex medical product that uses is eliminated because of the problem that exists protein allergy and carcinogen nitrosamine to separate out.
Different macromolecular materials have characteristics separately, and the pipe fitting of working it out may have diverse physical property.For example, polyvinyl chloride pipe can be soft can be hard, can be transparent or opaque, its durability is applicable to most of medical fields; The hardness and the chemical resistance of polyethylene tube are stronger, but are vitrinas; The transparency height of polycarbonate pipe, high temperature resistant, but very hard.As if yet medical infusion lines requires pipe fitting to have the characteristic of contradiction, as having high chemical resistance and pliability simultaneously, homogenous material can't satisfy the demands, and therefore the advantage that the multiple tube of multiple material preparation can comprehensive various materials reaches the good applicability energy.
A kind of infusion of insulin pipe is arranged at present, and this pipe adopts the polyethylene that has excellent compatibility with insulin as inner layer material, and its cladding material is the polrvinyl chloride of good springiness, studies show that, the plasticizer in the polrvinyl chloride product can move.If life-time service, plasticizer can enter the human recycle system along with intravenous injection, may damage health.Polyethylene belongs to the translucence material, and the catheter transparent degree of preparation is not high, is not easy to liquid flow situation in the observing tube.Cladding material is a polrvinyl chloride in addition, easily produces harmful gass such as hydrogen chloride and Lvization bioxin when burning disposal, and environment is produced severe contamination, does not meet environmental requirement.
The utility model content
The purpose of this utility model provides a kind ofly to be had excellent bend resistance performance, is more conducive to the normal activity of patient in treatment is used, with human body skin, the medicinal liquid compatibility is good and satisfy the medical infusion multiple tube of environmental requirement.
The technical scheme that its technical problem that solves this utility model adopts is: propose a kind of medical infusion multiple tube, comprise internal layer, skin and bonding internal layer and outer field intermediate layer, described intermediate layer is the ethene-vinyl acetate copolymer material layer, described internal layer is the high-density polyethylene material layer, skin is the polyurethane material layer, or internal layer is the polyurethane material layer, and skin is the polythene material layer.
In medical infusion multiple tube described in the utility model, the thickness of internal layer is 0.025～1.0 millimeter.
In medical infusion multiple tube described in the utility model, intermediate layer thickness is about 0.025～0.2 millimeter.
In medical infusion multiple tube described in the utility model, the outer layer thickness scope is 0.025～0.2 millimeter.
In medical infusion multiple tube described in the utility model, the inside diameter ranges of this multiple tube approximately is 0.4～1.0 millimeter.
In medical infusion multiple tube described in the utility model, the external diameter scope of this multiple tube is about 0.6～4.0 millimeter.
Wherein polyurethane is alternately inlayed by soft chain segment and hard segment and is formed, it is the polar polymer that contains many-NHCOO-group, can be by selecting suitable soft, hard segment ratio, the good macromolecular materials of physical and chemical performance such as synthetic toughness, hydrolytic resistance, wearability, flex stiffiness add and need not to add plasticizer and other additives man-hour.In addition, medical polyurethane shows excellent blood compatibility and biocompatibility, polyurethane toxicity test result meets medical requirement, in experimentation and clinical practice, show good anticoagulation function, no aberration inducing effect, do not have irritated reaction, these advantages have guaranteed no matter polyurethane products still are that external medical product can both have been given play to good performance in vivo.
Ethene-vinyl acetate copolymer (EVA) has good flexibility in wider temperature range, resistance to impact, environmental stress crack resistance still can have pliability preferably, the transparency under-50 ℃.EVA is nontoxic, safe and reliable.The EVA material is applied in the composite pipe, not only plays cushioning effect, and has caking property preferably, can improve the bond strength of tube material.
Polyethylene has excellent physical and mechanical property, and its chemical stability, resistance to water and biocompatibility are good, and be tasteless, nontoxic, and implanting has no adverse reaction, and density is little, is easy to machine-shaping.
In this utility model, when internal layer is high-density polyethylene material layer, intermediate layer when being ethene-vinyl acetate copolymer material layer, outer combination for the polyurethane material layer, internal layer high-density polyethylene material layer has good bend resistance performance and chemical resistance; Outer polyurethane strengthens the conduit flexibility and has toughness simultaneously; Intermediate layer ethene-vinyl acetate copolymer material layer bonds ectonexine, guarantees that conduit is difficult for taking place layering.When internal layer is polyurethane material layer, intermediate layer when being ethene-vinyl acetate copolymer (EVA) material layer, outer combination for the polythene material layer, internal layer polyurethane and drug compatibility are good, good springiness; The outer layer polyethylene water-tolerant; Intermediate layer EVA material layer plays cementation, plays certain cushioning effect to guiding-tube bend is stressed simultaneously.In addition, more than in two kinds of combinations, all do not contain pvc material, when burning disposal, all can not produce harmful gass such as hydrogen chloride and Lvization bioxin, can not produce severe contamination, compliance with environmental protection requirements to environment.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is a medical infusion multiple tube longitudinal profile sketch map;
Fig. 2 is a medical infusion multiple tube horizontal section sketch map.
The specific embodiment
Fig. 1, Fig. 2 show a more excellent embodiment of the present utility model.
Shown in Figure 2 as Fig. 1, medical infusion multiple tube in the present embodiment is made up of internal layer 3, intermediate layer 2 and outer 1, outer 1 is polyurethane (PU) material layer, internal layer 3 is high density polyethylene (HDPE) (HDPE) material layer, and intermediate layer 2 is that ethene-vinyl acetate copolymer (EVA) material layer is as the adhesive linkage of bonding internal layer 3 with skin 1.Composite transfusion pipe can be applicable to accurately injection for curing medical apparatus and instruments of long-term trace in the present embodiment, as insulin pump, the dimensional requirement of multiple tube is as follows: inside diameter ranges approximately is 0.4mm～1.0mm, the thickness of internal layer 3 is about 0.025mm～1.0mm, the thickness in intermediate layer 2 is about 0.025mm～0.2mm, outer 1 thickness range is 0.025mm～0.2mm, and the external diameter scope is about 0.6mm～4.0mm.
In the present embodiment, internal layer high-density polyethylene material layer has good bend resistance performance and chemical resistance; Outer polyurethane strengthens the conduit flexibility and has toughness simultaneously; Intermediate layer ethene-vinyl acetate copolymer material layer bonds ectonexine, guarantees that conduit is difficult for taking place layering.Do not contain polrvinyl chloride (PVC) material in the multiple tube, when burning disposal, all can not produce harmful gass such as hydrogen chloride and Lvization bioxin, environment is produced severe contamination, do not meet environmental requirement.Multiple tube can be by three-layer co-extruded molding.
In the present embodiment, during concrete enforcement, also can be following combination: internal layer be polyurethane (PU) material layer, and the intermediate layer is that ethene-vinyl acetate copolymer (EVA) material layer, skin are polyethylene (PE) material layer, this moment, internal layer polyurethane and drug compatibility were good, good springiness; The outer layer polyethylene water-tolerant; Intermediate layer ethene-vinyl acetate copolymer material layer plays cementation, plays certain cushioning effect to guiding-tube bend is stressed simultaneously.Whole multiple tube does not equally contain polrvinyl chloride (PVC) material yet, all can not produce harmful gass such as hydrogen chloride and Lvization bioxin when burning disposal, and environment is produced severe contamination, does not meet environmental requirement.
Claims (7)
1, a kind of medical infusion multiple tube, it is characterized in that: the intermediate layer (2) that comprises internal layer (3), outer (1) and bonding internal layer (3) and outer (1), described intermediate layer (2) is the ethene-vinyl acetate copolymer material layer, described internal layer (3) is the high-density polyethylene material layer, outer (1) is the polyurethane material layer, or internal layer (3) is the polyurethane material layer, and outer (1) is the polythene material layer.
2, medical infusion multiple tube according to claim 1 is characterized in that: the thickness range of described internal layer (3) is 0.025～1.0 millimeter.
3, medical infusion multiple tube according to claim 1 is characterized in that: described intermediate layer (2) thickness range is 0.025～0.2 millimeter.
4, medical infusion multiple tube according to claim 1 is characterized in that: described skin (1) thickness range is 0.025～0.2 millimeter.
5, according to each described medical infusion multiple tube among the claim 1-3, it is characterized in that: the inside diameter ranges of this multiple tube is 0.4～1.0 millimeter.
6, medical infusion multiple tube according to claim 5 is characterized in that: the external diameter scope of this multiple tube is 0.6～4.0 millimeter.
7, medical infusion multiple tube according to claim 5 is characterized in that: the three-layer co-extruded molding of this multiple tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200923986U CN201179269Y (en) | 2008-03-05 | 2008-03-05 | Medical transfusion composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200923986U CN201179269Y (en) | 2008-03-05 | 2008-03-05 | Medical transfusion composite tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179269Y true CN201179269Y (en) | 2009-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200923986U Expired - Lifetime CN201179269Y (en) | 2008-03-05 | 2008-03-05 | Medical transfusion composite tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN201179269Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218169A (en) * | 2011-03-22 | 2011-10-19 | 圣戈班研发（上海）有限公司 | Medical non-polyvinyl chloride composite transfusion hose |
| CN101536961B (en) * | 2009-04-21 | 2012-01-25 | 中国科学院长春应用化学研究所 | Safe blood or blood component storage container and preparation method thereof |
| CN102501503A (en) * | 2011-10-19 | 2012-06-20 | 山东威高集团医用高分子制品股份有限公司 | Dropping funnel bottle of blood transfusion apparatus and preparation method thereof |
| CN109045462A (en) * | 2012-01-19 | 2018-12-21 | 德尼培股份有限公司 | Multi-layer piping |
| CN111674160A (en) * | 2020-06-11 | 2020-09-18 | 上海汉图科技有限公司 | Inking pipeline, continuous ink supply assembly and ink-jet printer |
| CN111971087A (en) * | 2018-03-29 | 2020-11-20 | 益首药物治疗股份公司 | Multi-layer hose for an infusion set for dispensing a fluid |
-
2008
- 2008-03-05 CN CNU2008200923986U patent/CN201179269Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101536961B (en) * | 2009-04-21 | 2012-01-25 | 中国科学院长春应用化学研究所 | Safe blood or blood component storage container and preparation method thereof |
| CN102218169A (en) * | 2011-03-22 | 2011-10-19 | 圣戈班研发（上海）有限公司 | Medical non-polyvinyl chloride composite transfusion hose |
| CN102218169B (en) * | 2011-03-22 | 2013-05-29 | 圣戈班研发（上海）有限公司 | Medical non-polyvinyl chloride composite transfusion hose |
| CN102501503A (en) * | 2011-10-19 | 2012-06-20 | 山东威高集团医用高分子制品股份有限公司 | Dropping funnel bottle of blood transfusion apparatus and preparation method thereof |
| CN109045462A (en) * | 2012-01-19 | 2018-12-21 | 德尼培股份有限公司 | Multi-layer piping |
| CN111971087A (en) * | 2018-03-29 | 2020-11-20 | 益首药物治疗股份公司 | Multi-layer hose for an infusion set for dispensing a fluid |
| CN111674160A (en) * | 2020-06-11 | 2020-09-18 | 上海汉图科技有限公司 | Inking pipeline, continuous ink supply assembly and ink-jet printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090114 |