CN214909201U

CN214909201U - Composite medical dressing

Info

Publication number: CN214909201U
Application number: CN202121601919.8U
Authority: CN
Inventors: 古元安; 迟德文; 蔡忠新; 武洋洋; 冯永良
Original assignee: Suzhou Department Of Medical Technology Development Co ltd Han
Current assignee: Suzhou Department Of Medical Technology Development Co ltd Han
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-11-30
Anticipated expiration: 2031-07-14

Abstract

A composite medical dressing belongs to the technical field of medical dressings. The hydrogel adhesive tape is characterized in that a hydrogel adhesive tape filling concave channel is formed in one side, facing the release layer, of the hydrogel adhesive layer, a hydrogel adhesive tape is filled in the hydrogel adhesive tape filling concave channel, and the surface of one side, facing the release layer, of the hydrogel adhesive tape is flush with the surface of one side, facing the release layer, of the hydrocolloid layer, of the release layer. Because the side of the hydrocolloid layer facing the release layer is provided with the hydrogel strip filling concave channel, and the hydrogel strip is filled in the hydrogel strip filling concave channel, the good adhering and fixing effect of the hydrocolloid layer and the excellent liquid absorption effect of the hydrogel strip on wound seepage can be achieved, and the advantages of the hydrocolloid layer and the advantages of the hydrogel strip are complemented.

Description

Composite medical dressing

Technical Field

The utility model belongs to the technical field of medical dressing, concretely relates to compound medical dressing.

Background

Due to the inevitable accidental situations of scratching and scratching skin tissues in daily life, the medical dressing needs to be reasonably used for treating wounds. Different types of wounds and applicable dressings are different, so that the correct selection of the dressing has a good positive significance for promoting the wound healing and enhancing the wound healing effect.

Hydrogel and hydrocolloid dressings are relatively heavy to handle skin wounds and are found in published chinese patent literature, for example CN207071115U recommends "hydrogel dressings", CN211409709U provides "hydrogel wound dressings"; for another example, CN209734322U discloses "hydrocolloid dressing", CN105031709A discloses "a medical hydrocolloid dressing and a preparation method thereof", and CN212575085U discloses "a transparent hydrocolloid dressing", etc.

The hydrocolloid dressing mentioned above is a dressing sheet comprising a gelling substance such as sodium carboxymethylcellulose and gelatin, and a number of products incorporating an elastomeric polymer and an adhesive, placed on a carrier such as a polyurethane foam or film, and finally formed into an absorbent, self-adhesive, water-resistant and opaque or translucent dressing sheet, without the need for additional tape attachment during use due to the good adhesion of the hydrocolloid material. However, the hydrocolloid dressing has relatively weak imbibing effect, so it is not suitable for wounds with large infiltration liquid or large infiltration amount, otherwise, the wound infiltration liquid overflows and spreads to hurt the skin around the wound, so as to cause infection and influence the healing of the wound.

The above-mentioned hydrogel dressing is made of a hydrophilic polymer material, which is widely used for wounds such as ulcer wounds, wounds caused by trauma, burn wounds, scald wounds, chemically corroded wounds, and the like. The hydrogel dressing has the advantages of no adhesion to wounds, no damage to new tissues, large absorption of wound exudate and can provide a moist healing environment for wounds. However, since the hydrogel dressing itself is relatively weak in mechanical properties and adhesiveness, it needs to be fixed by means of a secondary dressing in use, and the cost is also higher than that of a hydrocolloid dressing.

Based on the above, it is of course of good positive significance if the advantages of both hydrocolloid and hydrogel dressings can be complemented to achieve the purpose of sharing the length and the length, and the technical solutions to be described below are made in this context.

Disclosure of Invention

The task of the utility model is to provide a have both had good self fixed effect and can embody the composite medical dressing to the excellent absorption effect of wound sepage again.

The task of the utility model is that accomplish like this, a compound medical dressing, include back sheet, hydrocolloid layer and leave the type layer, the hydrocolloid layer is located back sheet and between one side in opposite directions from the type layer, characterized in that is in the hydrocolloid layer orientation constitute from one side of type layer has hydrogel strip to fill the concave channel, and it has hydrogel strip to fill the concave channel intussuseption at this hydrogel strip, this hydrogel strip orientation from a side surface on type layer with hydrocolloid layer orientation is from one side parallel and level of type layer.

In a specific embodiment of the present invention, the backing layer is a non-woven fabric or a polyurethane film.

In another specific embodiment of the present invention, the depth of the hydrogel adhesive tape filling the concave channel is one third or two fifths of the thickness of the hydrogel layer; the width and thickness of the hydrogel strip are adapted to the width and depth of the hydrogel strip filling the depression.

In yet another embodiment of the present invention, the shape of the hydraulic glue strip filling recessed channel is a groined shape, a cross shape, a round shape or a W shape, which are repeated in a plurality of cycles and are spaced from each other and communicated with each other.

In another embodiment of the present invention, the shape of the hydrogel strip filling recessed channel is a plurality of spaced single-loop or multi-loop shapes or a plurality of circular rings with gradually increasing diameters from inside to outside.

In yet another specific embodiment of the present invention, the thickness of the hydrocolloid layer is 0.5-1 mm.

In a more specific embodiment of the invention, the hydrogel strip is obtained by physical cross-linking.

In yet another embodiment of the present invention, the hydrogel strip is obtained by chemical crosslinking.

In a still more particular embodiment of the invention, the hydrogel strip is cross-linked by irradiation.

In yet another specific embodiment of the present invention, the hydrogel strip is an antibacterial hydrogel strip.

The technical scheme provided by the utility model the technical effect lie in: because the side of the hydrocolloid layer facing the release layer is provided with the hydrogel strip filling concave channel, and the hydrogel strip is filled in the hydrogel strip filling concave channel, the good adhering and fixing effect of the hydrocolloid layer and the excellent liquid absorption effect of the hydrogel strip on wound seepage can be achieved, and the advantages of the hydrocolloid layer and the advantages of the hydrogel strip are complemented.

Drawings

Fig. 1 is a schematic view of an embodiment of the present invention.

FIG. 2 is a schematic view of an embodiment of the hydrogel strip shown in FIG. 1.

Detailed Description

Example 1:

referring to fig. 1 and 2, a backing layer 1, a hydrocolloid layer 2 and a release layer 3 are shown, wherein the hydrocolloid layer 2 is located between the backing layer 1 and the opposite side of the release layer 3.

As the technical scheme provided by the utility model: a hydrogel strip filling concave channel 21 is formed on the side of the hydrogel layer 2 facing the release layer 3, that is, the side (the same shall apply hereinafter) in contact with a wound of a human body in a use state, a hydrogel strip 4 is filled in the hydrogel strip filling concave channel 21, and the surface of the hydrogel strip 4 facing the release layer 3 is flush with the side of the hydrogel layer 2 facing the release layer 3.

The backing layer 1 is a non-woven fabric; the release layer 3 is release paper.

The depth of the hydrogel strip filling concave channel 21 is one third of the thickness of the hydrogel layer 2; the width and thickness of the strip 4 are adapted to the width and depth of the channel 21.

In this embodiment, the hydrogel strip filling grooves 21 are in the shape of a plurality of groves that are repeated cyclically and are spaced apart from each other and penetrate each other.

In this embodiment, the thickness of the hydrogel layer 2 is 0.5 mm; the aforementioned hydrogel strip 4 is an antibacterial hydrogel strip and is obtained by physical crosslinking, i.e. by physical crosslinking.

Example 2:

in the figure, only the back lining layer 1 is changed into a polyurethane film; the depth of the hydrogel strip filling the concave channel 21 is changed into two fifths of the thickness of the hydrogel layer 2; the shape of the hydraulic gel strip filling concave channel 21 is changed into a plurality of crisscross shapes, rich shapes or W shapes which are repeatedly circulated, spaced and communicated with each other; the hydrogel layer 2 was changed to a thickness of 1mm and the hydrogel strip 4 was obtained by chemical crosslinking, i.e. by chemical crosslinking. The rest is the same as described in example 1.

Example 3:

in the figure, only the shape of the hydraulic gel strip filling recessed channel 21 is changed to be a plurality of structures which are spaced from each other and are not communicated with each other (i.e. are independent from each other) in a single-loop shape or a plurality of-loop shapes; the hydrogel layer 2 was changed to a thickness of 0.75mm and the hydrogel strip 4 was radiation crosslinked, i.e., radiation crosslinked. The rest is the same as described in example 1.

Example 4:

in the figure, the shape of the hydrogel strip filling channel 21 is changed into a plurality of multiple circular rings with gradually increasing diameters from inside to outside. The rest is the same as described in example 1.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims

1. The utility model provides a composite medical dressing, includes back sheet (1), hydrocolloid layer (2) and leaves type layer (3), hydrocolloid layer (2) are located between back sheet (1) and the one side of leaving type layer (3) in opposite directions, its characterized in that be in hydrocolloid layer (2) orientation one side of leaving type layer (3) constitutes hydrogel strip filling concave channel (21), is filled with hydrogel strip (4) in this hydrogel strip filling concave channel (21), this adhesive strip (4) orientation one side surface of leaving type layer (3) be with hydrogel layer (2) orientation is from one side parallel and level of type layer (3).

2. The composite medical dressing according to claim 1, characterized in that the backing layer (1) is a nonwoven or a polyurethane film.

3. Composite medical dressing according to claim 1, characterized in that the hydrogel strip filling channels (21) have a depth of one third or two fifths of the thickness of the hydrogel layer (2); the width and thickness of the hydrogel strip (4) are adapted to the width and depth of the hydrogel strip filling channel (21).

4. The composite medical dressing according to claim 1 or 3, characterized in that the shape of the hydrogel strip filling recessed channel (21) is a plurality of groves, crosses, humps or W-shapes which are repeated cyclically and are both spaced and perforated.

5. Composite medical dressing according to claim 1 or 3, characterized in that the shape of the hydrogel strip filling channel (21) is in the form of a plurality of single-loop shapes or multiple-loop shapes which are spaced from each other and are not communicated with each other, or a plurality of circular rings with gradually increasing diameters from inside to outside.

6. Composite medical dressing according to claim 1 or 3, characterized in that the thickness of the hydrocolloid layer (2) is 0.5-1 mm.

7. Composite medical dressing according to claim 1 or 3, characterized in that said hydraulic gel strip (4) is obtained by physical cross-linking.

8. Composite medical dressing according to claim 1 or 3, characterized in that said hydraulic gel strip (4) is obtained by chemical cross-linking.

9. Composite medical dressing according to claim 1 or 3, characterized in that said hydraulic gel strip (4) is obtained by irradiation crosslinking.

10. The composite medical dressing according to claim 1 or 3, characterized in that said hydrogel strip (4) is an antibacterial hydrogel strip.