CN217219373U

CN217219373U - Three-layer structured medical wound dressing

Info

Publication number: CN217219373U
Application number: CN202122413747.8U
Authority: CN
Inventors: 刘惠权; 王李锋; 庄昌东
Original assignee: Jiaxing Linhua Medical Material Co ltd
Current assignee: Zhejiang Fumao Biotechnology Co ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-08-19
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a three-layer medical wound dressing, which comprises a release layer, a contact layer, a first adhesive layer, a moisture absorption layer, a second adhesive layer and a waterproof breathable layer which are arranged in sequence, wherein the contact layer, the first adhesive layer and the moisture absorption layer have the same size, the sizes of the contact layer and the moisture absorption layer are smaller than that of the waterproof breathable layer, the sizes of the second adhesive layer and the waterproof breathable layer are the same, the part of the second adhesive layer, which is positioned at the outer side of the moisture absorption layer, is provided with silica gel, and the first adhesive layer and the second adhesive layer are provided with through holes; the contact layer is gel fiber non-woven fabric, the moisture absorption layer is polyurethane foam, the waterproof breathable layer is a polyurethane film, and the first adhesive layer and the second adhesive layer are both pressure-sensitive adhesives. The utility model discloses a medical wound dressing of three layer construction passes through contact layer, moisture absorption layer and waterproof ventilative layer cooperation setting, has avoided taking place to glue with the skin surface of a wound, reduces the pain when changing dressings, possess simultaneously and block water the function that hinders the fungus, reduce the pollution of the microorganism of wound, infect and the possibility of inflammation.

Description

Medical wound dressing with three-layer structure

Technical Field

The utility model relates to a wound dressing technical field, concretely relates to medical wound dressing of three layer construction.

Background

The treatment of wounds with dressings involves a variety of situations and applications. A corresponding variety of different types of dressings may be used to treat the wound. Each type of wound undergoes several stages of healing and may require different treatment modalities depending on the stage of healing. Thus, the treatment of a wound includes selecting a dressing based on the particular type of wound and the various stages of healing expected;

at present, medical wound dressing is easy to be adhered to a skin wound surface after being contacted for a long time, secondary injury of the wound surface is easy to cause pain when the wound dressing is uncovered, the wound dressing does not have the performance of water and bacteria resistance, the wound dressing is easy to be invaded by microorganisms to cause wound infection, the liquid absorption amount is not high, and the frequency of dressing replacement can be increased.

Based on the circumstances, the utility model provides a medical wound dressing of three layer construction can effectively solve above one kind or multiple problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a medical wound dressing of three layer construction. The utility model discloses a medical wound dressing of three layer construction simple structure, high durability and convenient use, through the contact layer, moisture absorption layer and waterproof ventilative layer's cooperation setting, avoided taking place adhesion with skin, reduce the pain when changing dressings, alleviate medical staff and trade the work load, possess the function that blocks water and hinder the fungus simultaneously, the pollution of the microorganism of greatly reduced wound, the possibility of infection and inflammation, and the liquid suction capacity is greater than 30 grams per square meter, exceed the liquid suction capacity of conventional dressing, the frequency that the dressing was changed has been reduced.

The utility model discloses a following technical scheme realizes:

a medical wound dressing with a three-layer structure comprises a release layer, a contact layer, a first adhesive layer, a moisture absorption layer, a second adhesive layer and a waterproof breathable layer which are sequentially arranged, wherein the contact layer, the first adhesive layer and the moisture absorption layer are the same in size, the contact layer and the moisture absorption layer are smaller than the waterproof breathable layer in size, the second adhesive layer and the waterproof breathable layer are the same in size, silica gel is arranged on the part, located on the outer side of the moisture absorption layer, of the second adhesive layer, and through holes are formed in the first adhesive layer and the second adhesive layer;

the contact layer is gel fiber non-woven fabric, the moisture absorption layer is polyurethane foam, the waterproof breathable layer is a polyurethane film, and the first adhesive layer and the second adhesive layer are both pressure-sensitive adhesives.

Preferably, the gel fiber non-woven fabric is made of one or more of alginate fibers, modified cellulose fibers and modified chitosan fibers.

Preferably, the gram weight of the gel fiber non-woven fabric is 80-300 g/square meter, and the thickness of the gel fiber non-woven fabric is 0.2-5.0 mm.

Preferably, the thickness of the polyurethane foam is 1-8 mm.

Preferably, the thickness of the polyurethane film is 10-30 μm.

Preferably, the pressure-sensitive adhesive is a medical acrylic pressure-sensitive adhesive.

Preferably, the through holes are circular or rhombic.

Preferably, the diameter of the circle is 1-10 mm, and the side length of the prism is 1-10 mm.

Compared with the prior art, the utility model, have following advantage and beneficial effect:

the utility model discloses a medical wound dressing of three layer construction simple structure, high durability and convenient use, through the contact layer, moisture absorption layer and waterproof ventilative layer's cooperation setting, avoided taking place adhesion with skin, reduce the pain when changing dressings, alleviate medical staff and trade the work load, possess the function that blocks water and hinder the fungus simultaneously, the pollution of the microorganism of greatly reduced wound, the possibility of infection and inflammation, and the liquid suction capacity is greater than 30 grams per square meter, exceed the liquid suction capacity of conventional dressing, the frequency that the dressing was changed has been reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the following description of the preferred embodiments of the present invention is given with reference to the accompanying examples, but it should be understood that the drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1, the utility model provides a medical wound dressing with three-layer structure, including release layer 1, contact layer 2, first adhesive layer 3, moisture absorption layer 4, second adhesive layer 5 and the fungus-resistant layer 6 that blocks water that sets gradually, contact layer 2, first adhesive layer 3 and moisture absorption layer 4 are the same in size, and the size of contact layer 2 and moisture absorption layer 4 is less than the size that blocks water and hinder fungus layer 6, second adhesive layer 5 is the same with the size that blocks water and hinder fungus layer 6, be equipped with silica gel 7 on the part of second adhesive layer 5 outside moisture absorption layer 4, first adhesive layer 3 and second adhesive layer 5 have all seted up the through-hole;

the contact layer 2 is gel fiber non-woven fabric, the moisture absorption layer 4 is polyurethane foam, the water and bacteria blocking layer 6 is a polyurethane film, and the first adhesive layer 3 and the second adhesive layer 5 are both pressure-sensitive adhesives.

Example 2:

as shown in fig. 1, the utility model provides a medical wound dressing of three layer construction, including what set gradually from type layer 1, contact layer 2, first adhesive layer 3, hygroscopic layer 4, second adhesive layer 5 and block water and hinder fungus layer 6, contact layer 2, first adhesive layer 3 and hygroscopic layer 4's size the same, and the size of contact layer 2 and hygroscopic layer 4 is less than the size that blocks water and hinder fungus layer 6, second adhesive layer 5 is the same with the size that blocks water and hinder fungus layer 6, be equipped with silica gel 7 on the part of second adhesive layer 5 outside hygroscopic layer 4, set up a round silica gel 7 in the position that second adhesive layer 5 and skin contact can improve human travelling comfort, the through-hole has all been seted up to first adhesive layer 3 and second adhesive layer 5;

The liquid absorption amount of the gel fiber non-woven fabric of the contact layer 2 is more than 12g/g, and gel can be formed after the gel fiber non-woven fabric absorbs water, so that the gel fiber non-woven fabric is not adhered to a wound surface when being uncovered, the pain during dressing change is reduced, and the workload of medical workers during dressing change is reduced; the moisture absorption layer 4 is made of polyurethane foam, is soft and elastic and does not press wounds; the polyurethane film of the water-blocking and bacteria-blocking layer 6 has the functions of water blocking and bacteria blocking, and the possibility of microbial contamination, infection and inflammation of wounds is greatly reduced. The gel fiber is prepared into the non-woven fabric through a non-woven fabric needling process.

Further, in another embodiment, the material of the gel fiber non-woven fabric is one or more of alginate fibers, modified cellulose fibers and modified chitosan fibers.

Further, in another embodiment, the gel fiber non-woven fabric has a grammage of 80 to 300 g/m and a thickness of 0.2 to 5.0 mm.

Further, in another embodiment, the polyurethane foam has a thickness of 1 to 8 mm.

Further, in another embodiment, the thickness of the polyurethane film is 10-30 μm.

Further, in another embodiment, the pressure sensitive adhesive is a medical acrylic pressure sensitive adhesive.

Further, in another embodiment, the through holes are circular or diamond-shaped.

Further, in another embodiment, the diameter of the circle is 1-10 mm, and the edge length of the prism is 1-10 mm.

According to the description and the drawings of the present invention, the three-layer medical wound dressing of the present invention can be easily manufactured or used by those skilled in the art, and can produce the positive effects described in the present invention.

Unless otherwise specified, in the present invention, if the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are used for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.

Claims

1. A three-layer medical wound dressing is characterized in that: the adhesive tape comprises a release layer, a contact layer, a first adhesive layer, a moisture absorption layer, a second adhesive layer and a waterproof breathable layer which are sequentially arranged, wherein the contact layer, the first adhesive layer and the moisture absorption layer are the same in size, the sizes of the contact layer and the moisture absorption layer are smaller than that of the waterproof breathable layer, the sizes of the second adhesive layer and the waterproof breathable layer are the same, silicon gel is arranged on the part, located on the outer side of the moisture absorption layer, of the second adhesive layer, and through holes are formed in the first adhesive layer and the second adhesive layer;

2. The three-layer medical wound dressing of claim 1, wherein: the gel fiber non-woven fabric is made of one or more of alginate fibers, modified cellulose fibers and modified chitosan fibers.

3. The three-layer medical wound dressing of claim 1, wherein: the gel fiber non-woven fabric has a gram weight of 80-300 g/square meter and a thickness of 0.2-5.0 mm.

4. The three-layer medical wound dressing of claim 1, wherein: the thickness of the polyurethane foam is 1-8 mm.

5. The three-layer medical wound dressing of claim 1, wherein: the thickness of the polyurethane film is 10-30 mu m.

6. The three-layer medical wound dressing of claim 1, wherein: the pressure-sensitive adhesive is medical acrylic acid pressure-sensitive adhesive.

7. The three-layer medical wound dressing of claim 1, wherein: the through holes are circular or rhombic.

8. The tri-layer medical wound dressing of claim 7, wherein: the diameter of the circle is 1-10 mm, and the side length of the prism is 1-10 mm.