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High-permeability film dressing

A permeable film technology, applied in the field of high-permeable film dressings, can solve the problems of difficult observation of puncture points, strong foreign body sensation of patients, and high adhesiveness, so as to achieve good health recovery and high self-conscious comfort , fixed effect

Active Publication Date: 2014-03-12
河南健康广济生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] CN1202785C discloses a hydrophilic polyurethane wound dressing, which is composed of hydrophilic polyurethane soft foam slices and moisture-permeable, air-permeable, and waterproof polyurethane films. The thickness of the film is 0.5-0.8 μm, and the liquid absorption capacity is 7 ~20g / g, liquid retention 0.6~1.5g / g; the prepared polyurethane film is breathable, moisture-permeable, waterproof, bacteria-proof, and the moisture permeability is 20-60g / m 2 .h; its moisture vapor transmission rate is sufficient to match the skin's general evaporation capacity, but excessive sweating may cause moisture accumulation
The disadvantages are: 1. The adhesiveness is high, and there is residual glue after removal; 2. 75% dot glue is used, and the film itself has a certain thickness, resulting in poor transparency and difficult to observe the puncture point; 3. Because the film itself is as thick as 55 μm, the patient has a strong foreign body sensation

Method used

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  • High-permeability film dressing

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Embodiment 1

[0023] The high-permeability film dressing provided in this embodiment includes three parts, namely a polyurethane film layer, a silicon paper backing and a transparent cover. The polyurethane film layer is divided into two layers in terms of material composition. The first layer is a polyurethane elastomer film layer with a thickness of 10 μm. An acrylic adhesive layer on top of the film, ranging in thickness from 15-25 μm, is surface-adhesive and protected by a silicone paper backing. The above-mentioned first layer of polyurethane elastomer film layer and the above-mentioned second layer of acrylic adhesive layer have exactly the same area and size, and the shape is square, rectangular or other suitable shapes, for example, when it is a square, the size is 12×12cm; If it is a rectangle, the length range is 5-25cm, and the width range is 4-12cm. When in use, first remove the silicon paper backing, then stick the acrylic adhesive layer of the film dressing to the skin center...

Embodiment 2

[0025] The high-permeability film dressing provided in this embodiment includes three parts, namely a polyurethane film layer, a silicon paper backing and a transparent cover. The polyurethane film layer is divided into two layers in terms of material composition. The first layer is composed of polyurethane elastomer and non-woven fabric. The thickness of polyurethane elastomer is 10 μm. Both polyurethane elastomer and non-woven fabric are made of transparent cover Protection, the second layer is an acrylic adhesive layer coated on the polyurethane elastomer film layer, the thickness range is 15-25μm, the surface is sticky and protected by a silicon paper backing. The first layer of polyurethane elastomer film layer and no The area of ​​the woven cloth is exactly the same as that of the above-mentioned second layer of acrylic adhesive layer, and the shape is oval or other suitable shape. For example, when it is oval, the long axis can be 10.5cm, and the short axis can be 8.5cm ...

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Abstract

The invention relates to a high-permeability film dressing which comprises a polyurethane film layer, wherein the polyurethane film layer is composed of a polyurethane elastomer film layer and an adhesive layer coated on the polyurethane elastomer film layer; and the thickness of the polyurethane elastomer film layer is 8-15 mu m, and the steam permeability at 21+ / -2 DEG C under the relative humidity of 60+ / -15% is greater than or equal to 3000g / (m2.24hrs). The film dressing has high moisture permeability, and thus, can quick permeate the steam out, resist the outside pollutants, water molecules and bacteria from infiltration, thereby reducing the incidence rate of infections and phlebitis; and the film dressing has favorable water resistance, so that the patient can wear the film dressing while taking a shower, and keep the body and mind clean and comfortable, thereby being beneficial to restoration of health.

Description

technical field [0001] The invention relates to the technical field of medical wound dressings, more specifically, the invention relates to a high-permeability film dressing for catheter fixation. Background technique [0002] At present, medical dressings are developing rapidly, and are gradually showing a trend of diversification and functional development. There are many types and uses of polyurethane wound dressings, and they are mainly used in the form of films, foams and hydrogels for dressing production. Polyurethane elastomer materials are generally composed of two parts. Bonart et al. use "soft segment" and "hard segment" to describe its structure. The hard segment is generally composed of isocyanate and small molecule chain extender, and the soft segment is generally macromolecular polyether and polyester. or polyolefin etc. Due to the thermodynamic incompatibility between the soft segment and the hard segment, the soft segment and the hard segment can form indep...

Claims

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Application Information

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IPC IPC(8): A61L15/26A61L15/42A61L15/20
Inventor 潘大庆许松玲
Owner 河南健康广济生物技术有限公司