CN111803276A

CN111803276A - Sponge dressing for negative pressure drainage treatment

Info

Publication number: CN111803276A
Application number: CN202010853529.3A
Authority: CN
Inventors: 张俊辉; 车七石; 刘少辉
Original assignee: Guangzhou Rainhome Pharm and Tech Co Ltd
Current assignee: Guangzhou Rainhome Pharm and Tech Co Ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2020-10-23

Abstract

The invention provides a sponge dressing for negative pressure drainage treatment, wherein the edge of the dressing is an oblique angle, and the sponge dressing for negative pressure drainage can ensure that an adhesive film can be completely attached to the dressing and a sponge, so that the phenomenon of water-containing skin uplift caused by the exposure of epidermis at the edge of the dressing is avoided.

Description

Sponge dressing for negative pressure drainage treatment

Technical Field

The invention relates to the field of dressings, in particular to a sponge dressing for negative pressure drainage treatment.

Background

Negative Pressure Drainage Wound Therapy (NPWT) is also called Vacuum Assisted Closure Therapy (VAC), and Negative Pressure Sealing Drainage (VSD). The application method comprises covering a layer of dressing on the wound surface, embedding drainage catheter in the dressing, sealing the dressing and the wound surface with adhesive film, sucking out gas in the dressing by mechanical means to form certain negative pressure on the wound surface, and sucking wound exudate from the drainage catheter into a drainage bottle outside the body. The negative pressure drainage can timely discharge the seepage, the necrotic cells, the tissues and the hemorrhage out of the body, destroy harmful biomembranes generated by bacteria, and the surface negative pressure can stimulate the growth of granulation tissues and promote the healing of wound surfaces. Negative pressure drainage wound treatment techniques are currently widely used on a variety of acute and chronic wounds, for example: fracture, burn, skin grafting, chronic ulcer, pressure ulcer (pressure sore, bedsore), diabetic foot, surgery, etc. The negative pressure drainage wound surface treatment technology can promote wound surface healing, especially many difficult-to-heal wound surfaces, shorten hospitalization time, relieve the pain of patients, improve the life quality of the patients, generally reduce treatment cost, and has obvious social and economic values.

The dressing used for the negative pressure wound treatment at present is mainly made of polyvinyl alcohol PVA and polyurethane PU materials, and the dressing is more commonly used at home. The dressing has a certain thickness and rigidity, and is rectangular in cross section and vertical in edge. Therefore, when the dressing is sealed by the adhesive film, the edge of the sponge is provided with a triangular gap because the adhesive film cannot be attached to the vertical edge, and the skin is exposed in the gap. The skin of the part is in a negative pressure environment outside the corium, the pressure is reduced, the pressure difference exists between the inside and the outside of the corium, and the exposed part forms a skin bulge containing water liquid after a long time. The skin doming may be broken causing infection or leaving scars.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a sponge dressing for negative pressure drainage wound treatment, which can enable a pad pasting to completely cover the dressing.

The invention provides a sponge dressing for negative pressure drainage therapy, wherein the edge of the dressing is an oblique angle.

Preferably, the material of the sponge dressing is polyvinyl alcohol or polyurethane.

The invention also provides a negative pressure drainage wound surface device, which comprises the sponge dressing for negative pressure drainage treatment, a sealing unit, a drainage tube, a flushing tube and a drainage channel, wherein the negative pressure drainage sponge is arranged on the wound surface, one end of the drainage tube and one end of the flushing tube are inserted into the same drainage channel, and the other end of the drainage tube and one end of the flushing tube are provided with a negative pressure joint.

Preferably, the device also comprises a sucker which is arranged above the sponge, and the sucker is internally inserted with or without a flushing pipe.

The invention also provides application of the sponge dressing for negative pressure drainage treatment, and the sponge dressing is applied to negative pressure wound drainage, negative pressure closed drainage, negative pressure wound closure, negative pressure auxiliary closure and wound closure treatment.

Has the advantages that:

the invention improves the structure of the existing dressing, and the edge of the dressing is of an inclined structure, so that the adhesive film can completely cover the dressing, no gap is left on the skin, and the skin bulge containing water liquid is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments or the prior descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a prior art sponge dressing after it has been adhered;

FIG. 2 is a schematic cross-sectional view of the sponge dressing of example 1 after application;

FIG. 3 is a front perspective view of the sponge dressing of example 1;

FIG. 4 is a front perspective view of the sponge dressing of example 2;

wherein: 1. a sponge dressing; 2. pasting a film; 3. a water-laden skin bulge;

Detailed Description

The invention will be further described with reference to the accompanying drawings and the detailed description below:

existing sponge dressing

The polyvinyl alcohol PVA sponge has vertical edges, the sizes of the upper surface and the lower surface of the polyvinyl alcohol PVA sponge are both 10 multiplied by 15(cm), and the thickness of the polyvinyl alcohol PVA sponge is 1 cm. As shown in figure 1, a gap is formed around the adhesive film 2 which is attached on the sponge dressing 1, and the skin bulge 3 containing water liquid grows under the suction effect of negative pressure.

Example 1

The rectangular PVA sponge has an oblique edge, the size of the upper surface is 10 multiplied by 15(cm), the size of the lower surface is 12 multiplied by 17(cm), the thickness is 1cm, and the inclination angle of the oblique surface is about 45 degrees. As shown in figure 2, the adhesive film 2 can completely adhere the sponge dressing 1 and the wound surface, no gap is formed at the edge, and no skin bulge containing water liquid is formed.

Example 2

The edge of the cylindrical polyvinyl alcohol PVA sponge is an oblique angle, the size of the upper surface of the cylindrical polyvinyl alcohol PVA sponge is a circle with the diameter of 10cm, the size of the lower surface of the cylindrical polyvinyl alcohol PVA sponge is a circle with the diameter of 12cm, the thickness of the cylindrical polyvinyl alcohol PVA sponge is 1cm, and the inclination angle of the oblique plane is 45 degrees. The adhesive film 2 can completely adhere the sponge dressing 1 and the wound surface, no gap is formed at the edge, and no skin bulge containing water liquid is formed.

After the sponge dressings in examples 1 and 2 form the inclined plane, the adhesive film can completely adhere the sponge dressings and the wound surface, no pores are formed at the edge, and no skin bulge containing water liquid is formed.

It will be apparent to those skilled in the art that various other changes and modifications may be made in the above-described embodiments and concepts and all such changes and modifications are intended to be within the scope of the appended claims.

Claims

1. The utility model provides a sponge dressing for negative pressure drainage treatment which characterized in that: the edge of the dressing is beveled.

2. The sponge dressing of claim 1, wherein the material of the sponge dressing is polyvinyl alcohol or polyurethane.

3. The sponge dressing of claim 1, wherein the sponge dressing has a trapezoidal transverse cross-section and the bevel angle is from 30 ° to 60 °.

4. A negative pressure drainage wound device is characterized by comprising the sponge dressing for negative pressure drainage treatment, a sealing unit, a drainage tube, a flushing tube and a drainage channel according to claim 1, wherein the sponge dressing for negative pressure drainage treatment is arranged on a wound surface, one end of the drainage tube and one end of the flushing tube are inserted into the same drainage channel, and the other end of the drainage tube and one end of the flushing tube are provided with a negative pressure connector.

5. The negative pressure drainage wound device of claim 4, further comprising a suction cup, wherein the suction cup is placed above the sponge, and the suction cup is inserted with or without a flushing tube.

6. Use of the sponge dressing for negative pressure drainage therapy according to any one of claims 1 to 3, characterized in that the sponge dressing for negative pressure drainage therapy is used in the treatment of negative pressure wound drainage, negative pressure sealing drainage, negative pressure wound closure, negative pressure auxiliary closure and wound closure.