CN215194112U - Low-friction hydrocolloid dressing - Google Patents

Abstract

The utility model discloses a low friction hydrocolloid dressing, include: a hydrocolloid coiled material consisting of a wrinkle outer layer with a friction coefficient of 0.1-0.5 and an adhesive layer for adhering skin is compounded on a protective layer of the hydrocolloid coiled material; the corrugated outer layer comprises: thermoplastic polyurethane layer, polyethylene layer, ethylene-vinyl acetate copolymer layer, polyamide layer; the utility model discloses outer layer structure to hydrocolloid dressing optimizes, makes the surface fold change, produces low frictional force, and the material of selecting of deuterogamying for the outer coefficient of friction of fold has reduced hydrocolloid dressing and has stood up the limit between 0.1-0.5, and the risk that drops guarantees that hydrocolloid dressing can longer time subsides and apply on the wound, promotes wound healing, improves product competitiveness.

Description

Low-friction hydrocolloid dressing

Technical Field

The utility model relates to a medical material field, especially a low friction hydrocolloid dressing.

Background

Hydrocolloid dressings are a novel wound dressing which is widely applied in clinic, and provide a wet healing environment for wound healing. The main components of the coating are sodium carboxymethyl cellulose (CMC), a plasticizer and a polyurethane semipermeable membrane on the surface layer.

Hydrocolloid dressings have the following obvious advantages in wound care, and are favored by the market;

a) the wound surface is kept moist, an optimal micro-environment is provided for the wound surface, and the healing of the wound surface can be accelerated;

b) has effects in cleaning wound, absorbing wound exudate to form gel, protecting exposed nerve ending, relieving pain, and preventing trace after tearing off

c) Convenient use, good compliance, comfortable feeling for patients and hidden appearance.

The surface of the hydrocolloid dressing is generally designed to be a smooth plane, but in the actual use process, friction is generated on outer-layer clothes or a sickroom sheet to the hydrocolloid dressing, and the smooth plane cannot reduce the shearing force of external friction, so that the hydrocolloid dressing is easy to warp and fall off, the recovery of a wound is affected, and even bacteria in the external environment infect the wound, and the wound is infected; market needs a low friction hydrocolloid dressing to solve the problem that the dressing sticks up the limit, drops, the utility model provides a such problem.

SUMMERY OF THE UTILITY MODEL

For solving prior art's not enough, the utility model aims to provide a low friction hydrocolloid dressing, the utility model discloses optimize hydrocolloid dressing's outer structure, make the surface fold change, produce low friction, reduced hydrocolloid dressing stick up the limit, the risk that drops guarantees that hydrocolloid dressing can longer time paste and apply on the wound, promotes wound healing, improves product quality.

In order to achieve the above object, the utility model adopts the following technical scheme:

a low friction hydrocolloid dressing comprising: a hydrocolloid coiled material consisting of a wrinkle outer layer with a friction coefficient of 0.1-0.5 and an adhesive layer for adhering skin is compounded on a protective layer of the hydrocolloid coiled material; the corrugated outer layer comprises: thermoplastic polyurethane layer, polyethylene layer, ethylene-vinyl acetate copolymer layer, polyamide layer.

In the low-friction hydrocolloid dressing, the thickness of the wrinkled outer layer ranges from 10 to 100 mu m.

In the low-friction hydrocolloid dressing, the thickness of the outer layer of the folds is 20 μm.

In the low-friction hydrocolloid dressing, the outer wrinkled layer is a thermoplastic polyurethane layer.

In the low-friction hydrocolloid dressing, the friction coefficient of the outer layer of the wrinkles is 0.15.

In the low-friction hydrocolloid dressing, the thickness of the adhesive layer ranges from 1 mm to 5 mm.

In the low-friction hydrocolloid dressing, the thickness of the adhesive layer is 3 mm.

The low-friction hydrocolloid dressing comprises the following protective layers: polyethylene terephthalate layer, polyethylene layer, release paper.

In the low-friction hydrocolloid dressing, the thickness of the protective layer ranges from 30 to 120 μm.

In the low-friction hydrocolloid dressing, the protective layer is designed as a single-sided flap.

The utility model discloses an useful part lies in:

the utility model optimizes the structure of the outer layer of the hydrocolloid dressing, folds the outer surface, reduces the friction coefficient to 0.15, reduces the friction of clothes or bed sheets to the dressing in the using process of the hydrocolloid dressing, and reduces the risk of the turned edge falling off;

the dressing can be better adhered to the wound for a longer time, so that the moist healing environment of the wound is maintained, the wound is protected, the wound is recovered faster, the product quality is improved, and the market competitiveness is increased.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

The meaning of the reference symbols in the figures:

1 fold outer layer, 2 viscose layers and 3 protective layers.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a low friction hydrocolloid dressing comprises: the hydrocolloid coil material consists of a wrinkle outer layer with the friction coefficient of 0.1-0.5 and an adhesive layer adhered to the skin, and is compounded on the protective layer of the hydrocolloid coil material.

The fold skin possesses low frictional force, and the effect hinders the fungus for waterproof ventilative, and the fold skin includes: thermoplastic polyurethane layer, polyethylene layer, ethylene-vinyl acetate copolymer layer, polyamide layer; it should be noted that the material is not exhaustive, and the material that has waterproof ventilative fungus-resistant effect and can produce the fold through the warming mill is all applicable to the utility model discloses, as an optimization, the outer thermoplastic polyurethane that adopts of fold. The thickness is in the range of 10 to 100 μm as an example, and preferably 20 μm. The friction coefficient of the outer layer of the wrinkles is between 0.1 and 0.5, and preferably, the friction coefficient is 0.15.

The adhesive layer is used for adhering to the skin and absorbing exudates; the material is the viscose layer that adopts CMC sodium carboxymethyl cellulose and plasticizer to form through the polymerization and obtain, it is not only that such material is said to be, and the formula is prior art's formula, what the utility model discloses protect is structural design, and the viscose layer thickness is at 1 ~ 5mm, and as an optimization, thickness is 3 mm.

The protective layer is used for protecting the adhesive layer, preventing pollution and ensuring the safety of the product. The protective layer is unilateral folded piece design, and such design makes things convenient for medical personnel to use, can easily open the protective layer. The protective layer includes: a polyethylene terephthalate layer, a polyethylene layer or a release paper layer; preferably, the polyethylene terephthalate layer is selected, and it should be noted that the examples herein are not exhaustive, and any adhesive layer can be applied to the present invention. The thickness of the protective layer is in the range of 30-120 mu m, and preferably 65 mu m;

the following are examples of several embodiments of the present invention.

Example 1;

a) the material of the wrinkle outer layer is ethylene-vinyl acetate copolymer with a thickness of 30 μm, and the wrinkle outer layer passes through 120 deg.C at a speed of 5m/min

Heating roller to make the outer layer generate regular wrinkles and the friction coefficient is 0.28;

b) carrying out hydrocolloid gluing on the treated ethylene-vinyl acetate copolymer to obtain a viscose layer with the thickness of 2mm, and forming a hydrocolloid coiled material;

c) forming the hydrocolloid coiled material on a forming device, and selecting a polyethylene film as a material of the composite protective layer and the thickness

80μm；

Example 2;

a) selecting thermoplastic polyurethane as the material of the wrinkled outer layer, wherein the thickness of the wrinkled outer layer is 20 mu m, and the wrinkled outer layer passes through a heating roller at 105 ℃ at the speed of 6m/min to generate regular wrinkles, and the friction coefficient of the wrinkled outer layer is 0.15;

b) gluing the treated thermoplastic polyurethane with hydrocolloid to obtain a viscose layer with the thickness of 3mm to form a hydrocolloid coiled material;

c) molding the hydrocolloid coiled material on molding equipment, compounding a protective layer, selecting polyethylene terephthalate as a material, and enabling the thickness of the material to be 65 mu m;

example 3;

a) selecting the material of the wrinkled outer layer as polyamide, wherein the thickness of the wrinkled outer layer is 60 mu m, and the polyamide passes through a heating roller at 80 ℃ at the speed of 5m/min to enable the outer layer to generate regular wrinkles, and the friction coefficient is 0.40;

b) gluing the treated polyamide with hydrocolloid to obtain a viscose layer with the thickness of 4mm to form a hydrocolloid coiled material;

c) and forming the hydrocolloid coiled material on forming equipment, compounding a protective layer, selecting release paper as a material, and enabling the thickness of the protective layer to be mu m.

Example 4;

a) the material of the wrinkle outer layer is ethylene-vinyl acetate copolymer with a thickness of 50 μm, and the wrinkle outer layer passes through 150 deg.C at a speed of 8m/min

Heating roller to make the outer layer generate regular wrinkles and the friction coefficient is 0.33;

b) carrying out hydrocolloid gluing on the treated ethylene-vinyl acetate copolymer to obtain a viscose layer with the thickness of 4mm, and forming a hydrocolloid coiled material;

c) and (3) forming the hydrocolloid coiled material on forming equipment, compounding a protective layer, wherein the material is polyethylene terephthalate and the thickness is 90 mu m.

The embodiment shows that the outer wrinkled layer with the wrinkled outer surface can be obtained by adopting the material selection and the thickness of the utility model, the friction coefficient is between 0.1 and 0.5, the friction of clothes or bed sheets to the dressing in the use process of the hydrocolloid dressing is reduced, and the risk of the falling of the turned edge is reduced; the dressing can maintain the moist healing environment of the wound for a long time, protect the wound, enable the wound to recover more quickly, improve the product quality and increase the market competitiveness.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims (10)

1. A low friction hydrocolloid dressing comprising: a hydrocolloid coiled material consisting of a wrinkle outer layer with a friction coefficient of 0.1-0.5 and an adhesive layer for adhering skin is compounded on a protective layer of the hydrocolloid coiled material; the corrugated outer layer comprises: thermoplastic polyurethane layer, polyethylene layer, ethylene-vinyl acetate copolymer layer, polyamide layer.

2. A low friction hydrocolloid dressing according to claim 1, wherein the thickness of said wrinkled outer layer is in the range of 10-100 μm.

3. A low friction hydrocolloid dressing according to claim 2, wherein the thickness of the outer layer of corrugations is 20 μm.

4. The low friction hydrocolloid dressing of claim 1, wherein said outer wrinkled layer is a thermoplastic polyurethane layer.

5. A low friction hydrocolloid dressing according to claim 1, wherein the coefficient of friction of said corrugated outer layer is 0.15.

6. A low friction hydrocolloid dressing according to claim 1, wherein the thickness of the adhesive layer is in the range of 1-5 mm.

7. A low friction hydrocolloid dressing according to claim 6, wherein the thickness of the adhesive layer is 3 mm.

8. The low friction hydrocolloid dressing according to claim 1, wherein the protective layer comprises: polyethylene terephthalate layer, polyethylene layer, release paper.

9. A low friction hydrocolloid dressing according to claim 1, wherein the thickness of the protective layer is in the range of 30-120 μm.

10. The low friction hydrocolloid dressing of claim 1, wherein the protective layer is a one-sided flap design.

Images