EP3493775A1

EP3493775A1 - Medical cooling pad

Info

Publication number: EP3493775A1
Application number: EP16753868.5A
Authority: EP
Inventors: Anja ELLERBRAKE-SADLER
Original assignee: Ellerbrake Sadler Anja
Current assignee: Ellerbrake Sadler Anja
Priority date: 2016-08-03
Filing date: 2016-08-03
Publication date: 2019-06-12
Also published as: WO2018024329A1; US20190183672A1

Abstract

The invention relates to a medical cooling pad (10) for cooling the skin, comprising a distal flexible pad support (20), a flexible cooling gel layer (30) applied to the proximal side of the pad support (20), and a medical wound dressing (40) arranged on the proximal side of the cooling gel layer (30) and having a smaller area than the cooling gel layer (30). The cooling pad can be used to dress and cool smaller skin lesions.

Description

Medical cooling pad

The invention relates to a medical cooling pad for cooling the human skin or an injury on and / or below the skin.

Medical cooling pads are known from the prior art, which consist of a cushion with a liquid, gel-like, sand or earth-like filling, which has a relatively high heat capacity and possibly placed in cooled down form on the skin and fixed by a separate bandaging. The application of the pillow-like cooling pads on the skin is cumbersome.

From DE 102 60 872 AI and DE 10 2010 038 312 cooling pads are known, which are designed to be self-adhesive, so that the fixation on the skin no further aids and operations are required after placing on the skin,

The object of the invention is to provide a medical cooling pad that can be used even with external skin injuries.

The medical cooling pad for cooling the skin has a distal flexible pad carrier, on the proximal side of which a flexible cooling gel layer is applied. The term "proximal" in the present case is always to be understood as the side facing the skin after the application, and "distal" to the side facing away from the skin after application. Both the pad carrier and the cooling gel layer are flexible insofar as the cooling pad can thereby adapt to the spatial shape of the skin surface. In the present case, a cooling gel layer is understood to be any type of coating which enables passive or active cooling of the skin. Under a cooling gel layer is not necessarily a gel in the strict sense to understand, but any substance that can act cooling and has a certain strength, that is non-flowing at body temperature.

Under a passive cooling, the cooling is understood by a, for example, in a refrigerator, pre-cooled Kühlgelschicht having a relatively high heat capacity. Under a passive cooling, however, the cooling is understood by incorporation of a liquid in the cooling gel layer, wherein the liquid evaporates after the application to the skin and thereby produces evaporative cold. Suitable liquids for this purpose are water and / or volatile liquids, such as, for example, menthol, methylparaben, essential oils, etc.

Typical product examples for this are known under the designations SOS Children's Fever Plaster of Dr. Ing. Small Pharma GmbH, Germany, Perskindol Cool Patch or Sportusal Cool Patch.

On the proximal side of the cooling gel layer, a medical wound dressing is arranged, which has a smaller area than the cooling gel layer. The wound dressing thus covers only a part of the cooling gel layer, ie it is smaller than the cooling gel layer. The wound dressing may be directly or indirectly connected to the cooling gel layer. The medical wound dressing consists of an absorbent material that can absorb moisture, especially wound secretions and blood. The wound dressing may also contain substances which have a disinfecting effect and / or otherwise act medically on the wound.

This creates a medical cooling pad that can also be used for skin injuries. The cooling pad is placed on the skin wound so that the wound dressing over or on the skin injury comes to rest. At the same time, the cooling gel layer of the cooling pad ensures cooling, in particular of the entire zone around the skin injury. However, the cooling gel layer does not lie directly on the skin wound. Thus, both the skin injury can be supplied with a single handle and a skin coolant can be applied. Preferably, the medical wound dressing is laterally completely surrounded by the cooling gel layer, thus forming a quasi-floating island on the cooling gel layer. In this way, it is ensured that, after the cooling pad has been applied, the relevant skin injury zone is covered by the cooling gel over its entire circumference. Layer is cooled.

According to a preferred embodiment, the wound dressing is supported by a separate adhesive tape whose surface is keelner than the surface of the cooling gel layer and larger than the area of the wound dressing. The adhesive tape has an adhesive layer on its proximal side, which is partially covered by the medical wound dressing is. In this area, the wound dressing sticks directly to the adhesive tape. The medical wound dressing and the adhesive tape thus form a classic adhesive plaster, which is in turn fixed to the cooling gel layer with its distal side.

Preferably, the cooling gel layer is self-adhesive with respect to human skin. The medical cooling pad can thus be easily applied to the relevant skin injury, and adheres there without a bandage or without additional adhesive or adhesive.

Preferably, the adhesive layer of the adhesive tape on the skin has a greater adhesive force than the cooling gel layer on the distal side of the adhesive tape. After the cooling effect of the cooling gel layer is exhausted, the pad carrier with the captive fixed cooling gel layer can be removed from the skin. Since the adhesive force of the adhesive tape adhesive layer on the skin is greater than the adhesive force between the cooling gel layer and the adhesive tape, the applied adhesive tape, including the wound dressing held by it, remains on the skin during and after removal of the pad backing from the skin. To Removal of the responsible for the cooling effect part of the cooling pad so the adhesive plaster remains on the wound, which does not need to be re-supplied at this time.

Vorzugswelse at least one peelable cooling pad protective strip is provided proximal to the wound dressing, which covers and protects the entire exposed Kühlgel- layer directly. On the one hand, the cooling pad protection strip protects the cooling gel layer from drying out and, on the other hand, protects the medical wound dressing against contamination. The cooling pad protection strip is completely removed immediately before the application of the medical cooling pad from the proximal side of the cooling pad.

A cooling pad with a protective strip is also known from the above-mentioned products.

Furthermore, as an alternative or in addition to the cooling pad protective strip, a wound protection strip may be provided which exclusively covers and protects the wound dressing and, if present, the adhesive layer-rare of the adhesive tape. However, the wound dressing protective tape does not cover the cooling gel layer laterally of the wound dressing or adhesive tape. In particular, the wound-dressing protective strip protects the wound dressing and optionally the adhesive layer of the adhesive tape from contamination.

The protective strips are each characterized in that they allow only a relatively weak adhesive force together with the adhesive layer or with the cooling gel layer, so that the cooling pad protective strip and / or the wound dressing protective strip is easily removable or removable bar or are.

Preferably, the cooling gel layer is passively cooled. For this purpose, the cooling gel layer in particular substances that have a high heat capacity and / or a certain evaporation of cold can generate. Particularly suitable for this purpose are water-binding

Substances that bind water or moisture.

According to a preferred embodiment of the invention, the pad carrier on a layer of a support fabric. The pad carrier essentially serves the mechanical fixation of the cooling gel layer.

According to a preferred embodiment, the pad carrier distally on a water-impermeable coating. This serves, in particular, to prevent the cooling gel layer from drying out before and during use.

The medical cooling pad may further be packaged in a pouch individually and sterile so that sterility is ensured until the pouch is opened.

In the following, an embodiment of the invention with reference to the

Drawings explained in more detail. Show it ;

FIG. 1 shows a longitudinal section of a medical cooling pad packed in a protective bag;

FIG. 2 shows the medical cooling pad without protective bag,

FIG. 3 shows the medical cooling pad after removing the cooling pad protective strip,

FIG. 4 shows the medical cooling pad after removing the wound-up protective strips;

FIG. 5 shows the medical cooling pad of FIG. 4 applied to the skin,

FIG. 6 shows the medical kissing bath of FIG. 5 after the pad carrier has been removed from the skin together with the cooling gel layer so that the adhesive tape with the wound dressing remains stuck to the skin;

FIG. 7 of the cooling pad of FIG. 3 in a plan view of the proximal side.

FIG. 1 shows a longitudinal section of a medical cooling pad 10 packaged in a protective bag 100. The Kühipad 10 is used for wound care and cooling a lighter skin injury. The medical cooling pad 10 has a complex structure. From distal to proximal, the medical cooling pad 10 has a flexible pad carrier 20 which captively supports a flexible cooling layer 30 on which in turn centrally adheres a smaller adhesive tape 50 to the adhesive-free side, which in turn is approximately centered on its proximal adhesive side a wound dressing 40 holds, wherein the adhesive tape adhesive layer 54 and the wound dressing 40 are covered by two centrally overlapping peelable wound dressing protective strips 70, 71, and the proximal side of the cooling gel layer 30 and the wound dressing protection strip 70, 71 again a single large-area Küh äd päd-S utzstreif en 60 are covered.

The flexible pad carrier 20 consists essentially of a fleece-like support fabric 22, the distal by a water-impermeable coating

24 is covered. The water-impermeable coating 24 may consist of a suitable plastic film, for example »

The support fabric 22 may be a Viiesmaterial, the composite of

Pad carrier 20 and cooling gel layer 30 a sufficient mechanical

Strength, but can adapt to the surface shape of the skin area concerned.

The cooling gel layer 30 consists of a cooling gel body 32, which is formed for example from a medical cooling gel. The cooling gel layer 30 is relatively thick and may have a thickness of up to several millimeters. Water, methanol or moisture may be incorporated in the cooling gel body 32 in a corresponding matrix, and alternatively or additionally, other readily volatile liquids may also be incorporated.

The cooling gel layer 30 is designed to be self-adhesive, that is to say it has an adhesive coating or a self-adhesive property which ensures a certain adhesion of the cooling gel layer 30 or of the medical cooling bath 10 on the skin. Further, the adhesive property of the cooling gel layer 30 ensures that the adhesive tape 50 is centrally held in position. The adhesive tape 50 may be a conventional medical adhesive tape made of a suitable plastic film or a suitable plastic fabric, whose distal side is non-adhesive and which has an adhesive layer 54 on the proximal side. The adhesive tape 50 is smaller than the longitudinal extent and transverse extent of the cooling gel layer 30 both in the longitudinal extent and in the transverse extent.

On the tape 50, the medical wound dressing 40 is glued in the middle, which is formed by an absorbent, so moisture-absorbing medical non-woven 42 or tissue having aseptic substances, the adhesive tape 50, and the wound dressing 40 together form a conventional adhesive plaster 55, as for example known as Hansaplast Universal Plaster Strips.

The proximal side of the adhesive tape 50 or its adhesive layer 54 and the wound dressing 40 are covered by two overlapping wound-dressing protective strips 70, 71 made of plastic film, which only develop a relatively small adhesive force with the adhesive layer 54, that is to say slightly from the adhesive layer 54 are removable.

The proximal end of the medical cooling pad 10 finally forms a full-surface cooling pad protective strip 60 made of plastic film, which covers the cooling gel layer 30 over the entire area immediately and protects or centrally directly the two wound-protective strips

70 covered.

The composite of pad carrier 20, self-adhesive cooling gel layer 30 and cooling pad protection strip 60 can be obtained, without adhesive plaster, inter alia under the product designations SOS Children's Fever Pfiaster the Dr. med. Small Pharma GmbH, Germany, Perskindol Cool Patch or Sportusal Cool Patch.

The preparation or application of the cooling pad 10 is shown sequentially in FIGS. 1-6: First of all, the protective bag 100, which ensures the sterility of the cooling pad 10, is torn open, and the cooling pad 10 is removed from the opened protective bag 100, so that the cooling pad 10 is in the starting constitution shown in FIG. Subsequently, as shown in FIG. 3, the cooling pad protection device 60 is completely pulled off the cooling pad 10. Finally, the now accessible two wound protection strips 70,71 are completely removed from the adhesive tape 50 so that, as shown in Figure 4, the cooling pad 10 'is now ready for application to the skin.

The applied to the skin 8 state of the cooling pad 10 'is shown in Figure 5. Here it can already be seen that in the region of the adhesive tape 50, the adhesive layer 54 of the adhesive tape 50 directly adheres to the skin 8. The self-adhesive Kühlgei layer 30 adheres in all not covered by the tape 50 areas directly and directly on the skin. 8

As soon as the cooling effect of the cooling gel layer 30 has been exhausted, the pad carrier 20, including the cooling gel layer 30 fixed thereto, can be pulled off the skin 8. Since the adhesive force between the cooling gel slit 30 and the distal non-adhesive side of the adhesive tape 50 is relatively small, the adhesive force between the adhesive layer 54 and the skin 8 is sufficient to allow the pad backing 20 and cooling gel layer 30 to peel off the dressing Adhesive tape 50, including the wound dressing 40, sticks to the skin 8. After removing the cooling gel layer 30 more air reaches the skin 8, whereby the healing process is favored.

Claims

1. Medical cooling pad (10) for cooling the skin, with

a distal flexible pad carrier (20)

a flexible cooling gel layer (30), which is applied to the proximal side of the pad carrier (20), and

a medical wound dressing (40) disposed on the proximal side of the cooling gel layer (30) and having a smaller area than the cooling gel layer (30).

The medical cooling pad (10) of claim 1, wherein the medical wound dressing (40) is laterally completely surrounded by the cooling gel layer (30).

The medical cooling pad (10) of any one of the preceding claims, wherein the wound dressing (40) is carried by a separate adhesive tape (50) having a smaller area than the cooling gel layer surface and larger than the wound dressing area Adhesive tape (50) on its proximal side has an adhesive layer (54).

4. Medical cooling pad (10) according to any one of the preceding claims, wherein the cooling gel layer (30) is formed with respect to skin self-adhesive.

5. Medical Kühipad (10) according to any one of the preceding claims, wherein the adhesive layer (54) on the skin has a greater adhesive force than the cooling gel layer (30).

6. Medical Kühipad (10) according to any one of the preceding claims, wherein at least one peelable cooling pad protective strip (60) is provided proximal to the wound dressing (40), which directly covers and protects the cooling gel layer (30).

7. Medical Kühipad (10) according to any one of the preceding claims, wherein at least one peelable wound-protective strip (70,71) is provided proximal to the wound dressing (40), which directly covers and protects the wound dressing (40) and optionally the adhesive tape, but not the cooling gel layer (30).

8. Medical Kühipad (10) according to any one of the preceding claims, wherein the cooling gel layer (30) is formed passive cooling.

9. Medical Kühipad (10) according to one of the preceding

Claims, wherein the pad carrier (20) comprises a layer of a support fabric (22).

10. Medical Kühipad (10) according to any one of the preceding claims, wherein the pad carrier (20) has a water-impermeable coating (24).