Hydrocolloid dressing

Abstract

The utility model discloses a hydrocolloid dressing, and belongs to the technical field of medicine. The composite material comprises a base material layer, an annular non-woven fabric and a hydrocolloid matrix, the outer base material layer is a polyurethane film; the hydrocolloid matrix and the annular non-woven fabric are positioned on the lower surface of the outer base material layer and are adhered to the outer base material layer through a pressure-sensitive adhesive; the hydrocolloid matrix is located in an area defined by the annular non-woven fabric; the lower surface of the hydrocolloid matrix and the lower surface of the annular non-woven fabric are both provided with an adhesive layer, and the adhesive layers are isolated through a protective layer. According to the hydrocolloid dressing, the overall structural strength and the holding power of the hydrocolloid dressing can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical technology field, specifically, relate to a hydrocolloid dressing. BACKGROUND

[0002] At present, the nursing of the operation incision, trauma and indwelling needle, indwelling dynamic, venous catheter, drainage tube and other non-chronic wound mainly adopts gauze, sand pad, transparent dressing, foam dressing, liquid dressing and hydrocolloid dressing etc. Among them, gauze and sand pad can quickly absorb wound exudate and are economical and inexpensive, but can easily cause wound dehydration and adhesion, and increase the infection rate of the wound. The transparent dressing generally has moderate air permeability, and the liquid absorption amount is almost zero, and has poor adaptability to the wound with exudate. The foam dressing and liquid dressing have poor forming effect, are easy to appear uneven distribution and mechanical wear, and have no fixing effect, and need to be used multiple times, and the economy is general. The hydrocolloid dressing simultaneously considers the absorption and permeability of wound exudate, forms a moist wound healing environment, does not tear the new granulation tissue, and is suitable for various wounds and fixed drainage devices.

[0003] The traditional hydrocolloid dressing all adopts single hydrocolloid or hydrocolloid + polyurethane (PU) film as the contact with the skin or wound. The single hydrocolloid fixing type is poor, and the hydrocolloid is easy to fall off. Although the hydrocolloid + polyurethane (PU) film alleviates the falling off problem, the polyurethane (PU) film is very light and thin, and is easy to appear edge lifting and edge rolling, and contact the liquid or foreign matter with the wound. The traditional product also needs nursing staff to additionally equip other adhesive tape products (such as medical bandage) to fix the indwelling needle or catheter, and needs to additionally record the use date of the dressing on other carriers, which increases the workload of the medical staff. UTILITY MODEL CONTENTS

[0004] In view of the problems in the above background technology, the utility model provides a hydrocolloid dressing which can increase the overall structural strength and adhesion of the hydrocolloid dressing.

[0005] The technical scheme of the utility model is as follows:

[0006] A hydrocolloid dressing, comprising an outer substrate layer and an annular non-woven fabric, further comprising a hydrocolloid matrix.

[0007] The outer substrate layer is a polyurethane film, the hydrocolloid matrix and the annular non-woven fabric are located on the lower surface of the outer substrate layer and are adhered to the outer substrate layer through pressure-sensitive adhesive, the hydrocolloid matrix is located in the area surrounded by the annular non-woven fabric, and the lower surface of the hydrocolloid matrix and the lower surface of the annular non-woven fabric both have an adhesive layer, and the adhesive layer is isolated by a protective layer.

[0008] Further, the water gel matrix and the annular non-woven fabric have a spacing greater than zero; the adhesive layer covers the water gel layer, the annular non-woven fabric and part of the substrate layer.

[0009] Further, the functional layer is further included; the functional layer includes a release paper, a non-woven fabric and a paper adhesive tape; the non-woven fabric and the paper adhesive tape are adhered to the upper surface of the release paper, and the lower surface of the release paper is connected to the upper surface of the protective layer.

[0010] Further, the end of the release paper is provided with a taking notch, and the non-woven fabric and the paper adhesive tape are exposed at the taking notch and adhered to the upper surface of the protective layer.

[0011] Further, the release paper includes a pressing part and an adhesive part for connecting the non-woven fabric and the paper adhesive tape; the pressing part is located on the upper surface of the outer substrate, and the two are pressed by a pressing process; the adhesive part is located on the upper surface of the protective layer, and the two are not adhered.

[0012] Further, the protective layer is a square release paper.

[0013] Further, the water gel matrix is carboxymethyl cellulose.

[0014] Further, the annular non-woven fabric is provided with a tube passing notch on the side, and the outer substrate layer is provided with a defect corresponding to the tube passing notch.

[0015] Further, the hook-and-loop tape is further included, and the hook-and-loop tape includes a tape, a pile surface and a hook surface; the pile surface and the hook surface are located on the front surface of the tape, and the two have a sliding surface therebetween; the back surface of the tape is provided with a pressure-sensitive adhesive, the pressure-sensitive adhesive is isolated by the release paper, and the pressure-sensitive adhesive is located on the back side of the pile surface.

[0016] Further, the tape is provided with a tube passing hole.

[0017] Compared with the background art, the present application has the following advantages:

[0018] 1. The contact part with the skin or wound surface adopts a combination of water gel + polyurethane (PU) film + medical non-woven fabric, which increases the overall structural strength and adhesion of the water gel dressing under the premise of ensuring the liquid absorption and permeability of the water gel dressing, so that the general activities of the patient using the product will not affect the fixation of the indwelling needle or catheter.

[0019] 2. The functional area of the product has two independently usable medical non-woven fabric strips and paper adhesive tape strips, wherein the medical non-woven fabric strip can be used for simple fixation of the indwelling needle and catheter, and the medical staff can record the use time of the water gel dressing and patient information on the paper adhesive tape strip, thereby saving the medical staff from additional preparation of other adhesive tape products (such as medical bandages) and other tedious work.

[0020] 3, the product model is divided into fixed type, non-fixed type, wherein the fixed type is additionally provided with a hook and loop tape, which can more firmly fix the indwelling needle or catheter, avoiding problems such as knotting and falling off of the infusion catheter. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure diagram of the water gel matrix and the annular non-woven fabric in the embodiment of the utility model;

[0022] Figure 2 It is a structure diagram of the outer base layer in the embodiment of the utility model;

[0023] Figure 3 It is a structure diagram of the protective layer in the embodiment of the utility model;

[0024] Figure 4 It is a structure diagram of the release paper in the embodiment of the utility model;

[0025] Figure 5 It is a structure diagram of the non-woven fabric and the paper adhesive tape in the embodiment of the utility model;

[0026] Figure 6 It is a front structure diagram of the hook and loop tape in the embodiment of the utility model.

[0027] In the drawing: 1, annular non-woven fabric, 2, water gel matrix, 3, outer base layer, 4, protective layer, 5, release paper, 6, non-woven fabric, 7, paper adhesive tape, 101, hook surface, 102, sliding surface, 103, fuzzy surface, 104, tube hole. DETAILED DESCRIPTION

[0028] The utility model will be explained in detail in combination with the drawings and specific embodiments.

[0029] A water gel dressing, comprising an outer base layer and an annular non-woven fabric; further comprising a water gel matrix;

[0030] The outer base layer is a polyurethane film; the water gel matrix and the annular non-woven fabric are both located on the lower surface of the outer base layer and are adhered to the outer base layer through pressure-sensitive adhesive; the water gel matrix is located in the area surrounded by the annular non-woven fabric; the lower surface of the water gel matrix and the lower surface of the annular non-woven fabric both have an adhesive layer, and the adhesive layers are isolated by a protective layer.

[0031] Further, the water gel matrix and the annular non-woven fabric have a spacing greater than zero; the adhesive layer covers the water gel layer, the annular non-woven fabric and part of the base layer.

[0032] Further, it further comprises a functional layer; the functional layer comprises a release paper, a non-woven fabric and a paper adhesive tape; the non-woven fabric and the paper adhesive tape are both adhered to the upper surface of the release paper, and the lower surface of the release paper is connected to the upper surface of the protective layer.

[0033] Further, the end of the release paper is provided with a taking gap, the non-woven fabric and the paper adhesive tape are exposed at the taking gap and are bonded on the upper surface of the protective layer.

[0034] Further, the release paper comprises a pressing part and a bonding part for connecting the non-woven fabric and the paper adhesive tape; the pressing part is located on the upper surface of the outer base material and presses the two by a pressing process; the bonding part is located on the upper surface of the protective layer, and the two are not bonded.

[0035] Further, the protective layer is a square release paper.

[0036] Further, the hydrocolloid matrix is carboxymethyl cellulose.

[0037] Further, the side of the annular non-woven fabric is provided with a pipe passing gap, and the outer base material layer is provided with a defect corresponding to the pipe passing gap.

[0038] A hook-and-loop tape comprises a tape, a loop surface and a hook surface; the loop surface and the hook surface are located on the front surface of the tape, and the two have a sliding surface therebetween; the back surface of the tape is provided with a pressure-sensitive adhesive, and the pressure-sensitive adhesive is isolated by a release paper; the pressure-sensitive adhesive is located on the back side of the loop surface.

[0039] Further, the tape is provided with a pipe passing hole.

[0040] Reference Figures 1 to 5 The non-fixed hydrocolloid dressing is composed of an outer base material layer, an annular non-woven fabric, a hydrocolloid matrix, a protective layer and a functional layer.

[0041] The outer base material layer is composed of a polyurethane (PU) film coated with a pressure-sensitive adhesive; the non-woven fabric layer is composed of a non-woven fabric coated with a pressure-sensitive adhesive; the hydrocolloid matrix is composed of carboxymethyl cellulose (CMC) which is not absorbed by the human body; the protective layer is composed of a release paper; and the functional layer is composed of a release paper, a non-woven fabric and a paper adhesive tape.

[0042] Reference Figures 1 to 6 The fixed hydrocolloid dressing further comprises a hook-and-loop tape compared with the non-fixed hydrocolloid dressing; the hook-and-loop tape is composed of a hook-and-loop tape, a pressure-sensitive adhesive and a release paper.

[0043] The hydrocolloid dressing absorbs exudate from a wound surface through water-soluble polymer particles and is used for covering and nursing non-chronic wound surfaces such as surgical incisions, external injuries, indwelling needles, indwelling dynamic and static intravenous catheters and drainage tubes with less exudate.

[0044] Method for using the hydrocolloid dressing:

[0045] 1. If used at the wound site, the wound site should be cleaned and disinfected; if used at the indwelling needle, indwelling dynamic, intravenous catheter, drainage tube puncture site, it should be determined that the indwelling needle or catheter has been normally indwelled, and there is no clinical indication that the indwelling needle or catheter is not suitable for continued use.

[0046] 2. Select the appropriate size of the hydrocolloid dressing from the packaging bag.

[0047] 3. Remove the functional layer for standby, the non-woven fabric in the functional layer can be used to fix the catheter or other devices, and the paper tape can be used to record the starting time of the use of the hydrocolloid dressing, the user information, etc. If the medical staff has other suitable substitutes, the substitutes can be used instead of the components of the functional layer.

[0048] 4. Remove the protective layer to expose the adhesive surface. If the hydrocolloid dressing adhesive surface is inadvertently adhered together, a new hydrocolloid dressing should be used.

[0049] 5. Apply the hydrocolloid dressing to the wound, indwelling needle or catheter puncture site, and make sure that the hydrocolloid dressing is tightly combined with the skin without large air bubbles.

[0050] 6. If the catheter or catheter needs to be fixed, it can be passed through the hook-and-loop tape, and the hook-and-loop tape can be adhered to the appropriate position.

[0051] The above only describes the embodiments of the present application, but the present application is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit and principles of the present application, and these equivalent modifications or substitutions are all included in the scope defined by the claims of the present application.

Claims

1. A hydrocolloid dressing, comprising an outer substrate layer and a ring-shaped nonwoven fabric; characterized in that, It also includes hydrocolloid matrices; The outer substrate layer is a polyurethane film; the hydrocolloid matrix and the annular nonwoven fabric are both located on the lower surface of the outer substrate layer and are bonded to the outer substrate layer by pressure-sensitive adhesive; the hydrocolloid matrix is ​​located within the area enclosed by the annular nonwoven fabric. Both the lower surface of the hydrocolloid matrix and the lower surface of the annular nonwoven fabric have adhesive layers, which are isolated by a protective layer.

2. The hydrocolloid dressing according to claim 1, characterized in that, The hydrocolloid matrix and the annular nonwoven fabric have a spacing greater than zero; the adhesive layer covers the hydrocolloid layer, the annular nonwoven fabric and part of the substrate layer.

3. The hydrocolloid dressing according to claim 1, characterized in that, It also includes a functional layer; the functional layer includes release paper, non-woven fabric and paper tape; the non-woven fabric and paper tape are both adhered to the upper surface of the release paper, and the lower surface of the release paper is connected to the upper surface of the protective layer.

4. The hydrocolloid dressing according to claim 3, characterized in that, The release paper has a dispensing notch at its end, and the non-woven fabric and paper tape are exposed at the dispensing notch and adhered to the upper surface of the protective layer.

5. A hydrocolloid dressing according to claim 3, characterized in that, The release paper includes a pressing part and an adhesive part for connecting the nonwoven fabric and the paper tape; the pressing part is located on the upper surface of the outer substrate and the two are pressed together by a pressing process; the adhesive part is located on the upper surface of the protective layer and the two are not bonded together.

6. The hydrocolloid dressing according to claim 1, characterized in that, The protective layer is a square release paper.

7. A hydrocolloid dressing according to claim 1, characterized in that, The hydrocolloid matrix is ​​carboxymethyl cellulose.

8. A hydrocolloid dressing according to claim 1, characterized in that, The annular nonwoven fabric has a tube-passing notch on its side, and the outer substrate layer has a defect corresponding to the tube-passing notch.

9. A hydrocolloid dressing according to claim 1, characterized in that, It also includes hook and loop fasteners, which include a strip, a loop side, and a hook side; the loop side and the hook side are both located on the front side of the strip, and there is a smooth surface between them; pressure-sensitive adhesive is provided on the back side of the strip, and the pressure-sensitive adhesive is separated by release paper; the pressure-sensitive adhesive is located on the back side of the loop side.

10. A hydrocolloid dressing according to claim 9, characterized in that, The belt is provided with a through hole.

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