Self-heating plaster and plaster combination structure

Abstract

The utility model discloses a self-heating plaster patch and a plaster patch combined structure. The self-heating plaster patch comprises a plaster patch layer, a first non-woven fabric layer, a heating wrapping layer and a second non-woven fabric layer. The front surface of the first non-woven fabric layer is adhered to the back surface of the plaster patch layer, the peripheral edge of the first non-woven fabric layer exceeds the peripheral edge of the plaster patch layer, and an adhesive layer is arranged on the exceeding part of the front surface. The heating wrapping layer comprises a first micropore breathable film, a sheet-shaped heating body and a second micropore breathable film which are stacked from bottom to top. The sheet-shaped heating body is wrapped by the first and second microporous breathable films, and the peripheral edges of the first and second microporous breathable films are attached and sealed by hot pressing; the front surface of the first microporous breathable film is adhered to the back surface of the first non-woven fabric layer; the back surface of the second microporous breathable film is adhered to the front surface of the second non-woven fabric layer. And the peripheral boundary line of the sheet-shaped heating body exceeds the peripheral boundary line of the plaster patch layer. According to the self-heating plaster, by controlling the reaction rate, the long-time heating effect is kept, the scald risk is reduced, and the cold and numb feeling of the skin can be relieved.

Description

Technical Field

[0001] The present application relates to the technical field of plasters, and in particular to a self-heating plaster and a plaster combination structure. Background Art

[0002] Plaster application is one of the methods used externally to treat diseases in my country. It follows the principles of TCM diagnosis and treatment and the efficacy, main indications and meridians of Chinese medicine, fully mobilizes the effectiveness of drugs to coordinate with each other, and forms a large compound of multiple medicines to exert the good effects of the drugs.

[0003] In the survey of the use of plasters on the market, it was found that patients had a lot of negative feedback during use, such as poor adhesion of the plaster, easy displacement of the plaster and the skin, poor body sensation, etc. In some plasters, temperature has a promoting and enhancing effect on the body sensation of the product and the release of active ingredients.

[0004] As we all know, the plaster must be heated and softened before use, and then the softened plaster is applied to the patient's affected area. When heating and softening, for example, a common method is heating with candles or hot air from a hair dryer; for example, in the winter in the north, it is often placed on a radiator to soften the plaster through heat conduction. These all give first-time patients a poor experience and an impression of inconvenience.

[0005] In an existing solution, a plaster is equipped with an electrically heated hot compress patch, and the plaster is heated by the electrically heated hot compress patch. The heating of this solution needs to be connected to a power source, and it cannot be carried 24 hours a day. The use time is affected by the patient's location, which is inconvenient to use. It also has the disadvantages of short constant temperature time and poor safety.

[0006] In another existing solution, the plaster is equipped with a heating pack that generates heat by contacting the air. Generally, the heating pack is equivalent to the area of ​​the drug attached, which causes the skin around the plaster to feel cold and numb, and the comfort is poor. At the same time, some heating packs are in direct contact with the air during the reaction, and the temperature rises quickly, which may bring the risk of skin burns. In addition, the heating pack is in direct contact with the air, so the reaction time is fast and the continuous heating time is short. Utility Model Content

[0007] The purpose of the embodiments of the present application is to provide a self-heating plaster patch and a plaster patch combination structure, which can maintain a long-term plaster heating effect and reduce the risk of burns by controlling the reaction rate, and can alleviate the cold and numb feeling of the skin around the plaster patch.

[0008] The present application provides a self-heating plaster patch, comprising a plaster patch layer, a first non-woven fabric layer, a heating coating layer and a second non-woven fabric layer; the front side is defined as a side facing the skin when applied, and the back side is defined as a side facing away from the skin when applied;

[0009] The front side of the first non-woven fabric layer is adhered to the back side of the plaster patch layer, the edges of the first non-woven fabric layer extend beyond the edges of the plaster patch layer, and the front side of the extended portion is provided with an adhesive layer;

[0010] The heating envelope comprises a first microporous breathable film, a sheet-like heating element, and a second microporous breathable film stacked in sequence from bottom to top; the first microporous breathable film and the second microporous breathable film wrap the sheet-like heating element, and the edges of the first microporous breathable film and the edges of the second microporous breathable film are attached and heat-pressed and sealed; the front side of the first microporous breathable film is bonded to the back side of the first non-woven fabric layer; the back side of the second microporous breathable film is bonded to the front side of the second non-woven fabric layer;

[0011] From the front to the back, the boundary lines around the sheet heating element exceed the boundary lines around the plaster patch layer.

[0012] In an implementable solution, the plaster patch layer includes a pearlescent film layer and a plaster layer, and the outer dimensions of the pearlescent film layer are consistent with the outer dimensions of the plaster layer;

[0013] The front side of the pearl film layer is attached to the back side of the plaster layer, and the back side of the pearl film layer is adhered to the front side of the first non-woven fabric layer.

[0014] In an practicable solution, the plaster patch layer includes a silicone oil paper layer, and the outer dimensions of the silicone oil paper layer are consistent with the outer dimensions of the plaster layer;

[0015] The back side of the silicone oil paper layer is attached to the front side of the plaster layer.

[0016] In an implementable solution, the plaster patch layer includes a release paper layer, and the outer dimensions of the release paper layer are consistent with the outer dimensions of the first non-woven fabric layer;

[0017] The middle part of the back side of the release paper layer is attached to the front side of the silicone oil paper layer, and the part of the peripheral edge of the release paper layer that exceeds the peripheral edge of the silicone oil paper layer is attached to the part of the peripheral edge of the first non-woven fabric layer that exceeds the peripheral edge of the plaster layer;

[0018] When in use, the release paper layer and the silicone oil paper layer are separated in sequence.

[0019] In an implementable solution, the first non-woven fabric layer, the second non-woven fabric layer, the first microporous breathable membrane and the second microporous breathable membrane have the same outer dimensions.

[0020] In one feasible solution, the thickness of the first non-woven fabric layer is 1-5 mm.

[0021] In one feasible solution, the thickness of the second non-woven fabric layer is 0.5-1 mm.

[0022] In an implementable solution, the width of the heat-pressing seal between the edges of the first microporous breathable membrane and the edges of the second microporous breathable membrane is 5-10 mm.

[0023] In an implementable solution, a plurality of vertical air holes are disposed in the first microporous breathable membrane and the second microporous breathable membrane, and the plurality of air holes are evenly spaced.

[0024] In a second aspect, a plaster patch combination structure is also provided, comprising the self-heating plaster patch in the aforementioned scheme, and also comprising a sealed package, wherein the self-heating plaster patch is placed in a vacuum package.

[0025] Compared with the prior art, the beneficial effects of this application include at least:

[0026] The self-heating plaster of the present application is provided with a first microporous breathable membrane and a second microporous breathable membrane to wrap the sheet heating element, so that the amount of air entering can be controlled, thereby achieving the purpose of controlling the reaction rate of the sheet heating element, thereby controlling the temperature and reaction time of the heating element, and further achieving continuous heating for a longer period of time.

[0027] In addition, the microporous breathable film also prevents the leakage of heating materials such as iron powder. The double-sided microporous breathable film ensures that the heating element can heat up relatively quickly when it is continuously heated, and the ointment softens relatively quickly when heated and can be used quickly. The warming effect also improves the experience. The double-sided microporous breathable film ensures that the skin is breathable during the use of the patch.

[0028] Moreover, the boundary lines around the sheet heating element exceed the boundary lines around the plaster patch layer, which is equivalent to that the area of ​​the sheet heating element is larger than the area of ​​the plaster patch layer. The heat dissipated not only softens the plaster and improves its bioavailability, but also warms the area around the affected area, improves the feeling of coolness and numbness, reduces the pain caused by low temperature, improves comfort, and improves patient compliance.

[0029] At the same time, after the first non-woven fabric layer is preset with an appropriate thickness, the heat emitted by the sheet-like heating element will not directly reach the skin, preventing skin burns caused by excessive temperature, thereby achieving the purpose of appropriate heating temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of a portion of layer boundaries of a self-heating plaster in a top view according to an embodiment of the present application;

[0032] Figure 2 This is an exploded view of a self-heating plaster according to an embodiment of the present application;

[0033] Figure 3 This is a structural diagram of a heating coating layer of a self-heating plaster according to an embodiment of the present application.

[0034] In the figure:

[0035] 1. Plaster patch layer; 11. Pearlescent film layer; 12. Plaster layer; 13. Silicone oil paper layer; 14. Release paper layer; 2. First non-woven fabric layer; 3. Heating wrap layer; 31. First microporous breathable film; 32. Sheet heating element; 33. Second microporous breathable film; 301. Air holes; 4. Second non-woven fabric layer; 5. Adhesive layer. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0038] like Figure 1 and Figure 2 As shown, this embodiment provides a self-heating plaster patch, including a plaster patch layer 1, a first non-woven fabric layer 2, a heating coating layer 3 and a second non-woven fabric layer 4; the front side is defined as the side facing the skin when applied, and the back side is defined as the side away from the skin when applied.

[0039] The front side of the first non-woven fabric layer 2 is adhered to the back side of the plaster patch layer 1, and the edges of the first non-woven fabric layer 2 are beyond the edges of the plaster patch layer 1, and the front side of the beyond portion is provided with an adhesive layer 5. The entire back side of the first non-woven fabric layer 2 can be provided with adhesive, and the portion not covered by the plaster patch layer 1 is exposed to form an adhesive layer 5 for attachment to the skin. The adhesive layer 5 can be a pressure-sensitive adhesive.

[0040] The heating envelope 3 includes a first microporous breathable film 31, a sheet-like heating element 32, and a second microporous breathable film 33 stacked in sequence from bottom to top; the first microporous breathable film 31 and the second microporous breathable film 33 wrap the sheet-like heating element 32, and the edges of the first microporous breathable film 31 and the edges of the second microporous breathable film 33 are adhered and heat-pressed and sealed; the front side of the first microporous breathable film 31 is bonded to the back side of the first non-woven fabric layer 2; the back side of the second microporous breathable film 33 is bonded to the front side of the second non-woven fabric layer 4.

[0041] From the front to the back, the boundary lines of the sheet heating element 32 are beyond the boundary lines of the plaster patch layer 1.

[0042] It should be noted that the heating material layer of the sheet heating element 32 can be composed of reduced iron powder, activated carbon, vermiculite, inorganic salt, and water. In this embodiment, reduced iron powder can be combined with activated carbon under the action of inorganic salt, water and oxygen to form an exothermic reaction. By adding vermiculite to mix with reduced iron powder and carbon powder, the heat generated by the oxidation of reduced iron powder is absorbed and the heat is evenly diffused, and the self-heating element can be effectively prevented from hardening, thereby ensuring good flexibility. The heating element can continuously release heat and provide heat.

[0043] The self-heating plaster of this embodiment is provided with a first microporous breathable membrane 31 and a second microporous breathable membrane 33 to wrap the sheet heating element 32, so that the amount of air entering can be controlled, and the purpose of controlling the reaction rate of the sheet heating element 32 can be achieved, thereby controlling the temperature and reaction time of the heating element, and further achieving continuous heating for a longer period of time.

[0044] In addition, the microporous breathable film also prevents the leakage of heating materials such as iron powder. The double-sided microporous breathable film ensures that the heating element can heat up relatively quickly when it is continuously heated, and the ointment softens relatively quickly when heated and can be used quickly. The warming effect also improves the experience. The double-sided microporous breathable film ensures that the skin is breathable during the use of the patch.

[0045] Moreover, the boundary lines around the sheet heating element 32 exceed the boundary lines around the plaster patch layer 1, which is equivalent to that the area of ​​the sheet heating element 32 is larger than the area of ​​the plaster patch layer 1. The heat dissipated not only softens the paste and improves the bioavailability, but also warms the area around the affected area, improves the feeling of coolness and numbness, reduces the pain caused by low temperature, improves comfort, and improves patient compliance.

[0046] At the same time, after the first non-woven fabric layer 2 is preset with an appropriate thickness, the heat emitted by the sheet-like heating element 32 will not directly reach the skin, preventing skin burns caused by excessive temperature, thereby achieving the purpose of appropriate heating temperature.

[0047] In this embodiment, if Figure 1 and Figure 2 As shown, the plaster patch layer 1 includes a pearlescent film layer 11 and a plaster layer 12, and the outer dimensions of the pearlescent film layer 11 are consistent with the outer dimensions of the plaster layer 12. The front side of the pearlescent film layer 11 is attached to the back side of the plaster layer 12, and the back side of the pearlescent film layer 11 is adhered to the front side of the first non-woven fabric layer 2. The pearlescent film layer 11 can be a biaxially oriented polypropylene pearlescent film.

[0048] In this embodiment, if Figure 1 and Figure 2 As shown, the plaster patch layer 1 includes a silicone oil paper layer 13 , and the outer dimensions of the silicone oil paper layer 13 are consistent with those of the plaster layer 12 ; the back side of the silicone oil paper layer 13 is attached to the front side of the plaster layer 12 .

[0049] In this embodiment, if Figure 1 and Figure 2 As shown, the plaster patch layer 1 includes a release paper layer 14 , and the outer dimensions of the release paper layer 14 are consistent with those of the first non-woven fabric layer 2 .

[0050] When not in use, the middle of the back side of the release paper layer 14 is attached to the front side of the silicone oil paper layer 13, and the edge of the release paper layer 14 that exceeds the edge of the silicone oil paper layer 13 is attached to the edge of the first non-woven fabric layer 2 that exceeds the edge of the plaster layer 12.

[0051] When in use, the release paper layer 14 and the silicone oil paper layer 13 are separated in sequence, that is, torn off from the plaster layer 12 .

[0052] In this embodiment, if Figure 1 and Figure 2 As shown, the first non-woven fabric layer 2, the second non-woven fabric layer 4, the first microporous breathable membrane 31 and the second microporous breathable membrane 33 have the same outer dimensions.

[0053] In this embodiment, the thickness of the first non-woven fabric layer 2 is 1-5 mm, for example, 1 mm, 2 mm, 2.5 mm, 3 mm, 4 mm and 5 mm, etc. The thickness is appropriate, and the heat emitted by the heating element will not directly reach the skin, preventing skin burns caused by excessive temperature. The temperature is appropriate and will not be too low or too high.

[0054] In this embodiment, the thickness of the second non-woven fabric layer 4 is 0.5-1 mm, for example, 0.5 mm, 1 mm, 2 mm, 2.5 mm, 3 mm, 4 mm and 5 mm, etc. The thickness is relatively small, which reduces the overall thickness and improves the application experience.

[0055] In this embodiment, if Figure 1As shown, the heat-pressing sealing width of the edges around the first microporous breathable membrane 31 and the edges around the second microporous breathable membrane 33 is 5-10mm, for example 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc., so it is not easy to leak through the opening, it is firm and beautiful, one-piece molding, simple process, low cost, easy to use, weak foreign body sensation after application, and good experience.

[0056] In this embodiment, if Figure 3 As shown, the first microporous breathable membrane 31 and the second microporous breathable membrane 33 may be provided with a plurality of vertical air holes 301, and the plurality of air holes 301 are evenly spaced. In some embodiments, the first microporous breathable membrane 31 and the second microporous breathable membrane 33 may be provided with a mesh pore structure to form the air holes 301.

[0057] The present embodiment further provides a plaster patch combination structure, comprising the self-heating plaster patch in the aforementioned solution, and also comprising a sealed package, wherein the self-heating plaster patch is placed in the sealed package and is vacuum-packed.

[0058] Since the back of the second nonwoven fabric layer 4 is no longer provided with release paper to isolate oxygen, the sealed bag can react and generate heat after opening the bag. After opening the bag, the release paper layer 14 and the silicone oil paper layer 13 are torn off and applied to the affected part for use.

[0059] It should be noted that the composition of the plaster layer 12 can be based on the content recorded in patent CN105250933B, and can be made into circular pieces with a diameter of 6 cm, 8 cm, etc., or plaster layers of other shapes, and then spread on the pearlescent film layer 11.

[0060] The inventor has conducted multiple tests on the self-heating plaster provided in this embodiment, and it is concluded that the heating time is long, and the fever can be basically stable for one day, and the heat generation remains stable, and the affected part is warmed at a suitable temperature continuously. The temperature measurement shows that it is 40-50 degrees Celsius. The transdermal absorption rate is significantly increased, the pores open larger when the temperature rises, the drug passage rate increases, the effect is faster, and the bioavailability is improved. The temperature rises quickly relative to the bag opening, the affected part is continuously warm, the patient feels better, and the cold numbness and pain of the affected part are greatly controlled, thereby promoting the faster onset of the drug effect by heating, which helps to exert the drug effect for a long time.

[0061] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-heating plaster, characterized in that: It comprises a plaster patch layer (1), a first non-woven fabric layer (2), a heating layer (3) and a second non-woven fabric layer (4); the front side is defined as the side facing the skin when applied, and the back side is defined as the side facing away from the skin when applied; The front side of the first non-woven fabric layer (2) is bonded to the back side of the plaster patch layer (1); the edges of the first non-woven fabric layer (2) extend beyond the edges of the plaster patch layer (1); and an adhesive layer (5) is provided on the front side of the extended portion; The heating envelope (3) comprises a first microporous breathable film (31), a sheet-like heating element (32) and a second microporous breathable film (33) stacked in sequence from bottom to top; the first microporous breathable film (31) and the second microporous breathable film (33) wrap the sheet-like heating element (32), and the edges of the first microporous breathable film (31) and the edges of the second microporous breathable film (33) are adhered and heat-pressed and sealed; the front side of the first microporous breathable film (31) is bonded to the back side of the first non-woven fabric layer (2); the back side of the second microporous breathable film (33) is bonded to the front side of the second non-woven fabric layer (4); In the direction from the front to the back, the boundary lines around the sheet-like heating element (32) exceed the boundary lines around the plaster patch layer (1).

2. The self-heating plaster according to claim 1, characterized in that: The plaster patch layer (1) comprises a pearlescent film layer (11) and a plaster layer (12), and the outer dimensions of the pearlescent film layer (11) are consistent with the outer dimensions of the plaster layer (12); The front side of the pearlescent film layer (11) is attached to the back side of the plaster layer (12), and the back side of the pearlescent film layer (11) is bonded to the front side of the first non-woven fabric layer (2).

3. The self-heating plaster according to claim 2, characterized in that: The plaster patch layer (1) comprises a silicone oil paper layer (13), and the outer dimensions of the silicone oil paper layer (13) are consistent with the outer dimensions of the plaster layer (12); The back side of the silicone oil paper layer (13) is adhered to the front side of the plaster layer (12).

4. The self-heating plaster according to claim 3, characterized in that: The plaster patch layer (1) comprises a release paper layer (14), and the outer dimensions of the release paper layer (14) are consistent with the outer dimensions of the first non-woven fabric layer (2); The middle part of the back side of the release paper layer (14) is adhered to the front side of the silicone oil paper layer (13), and the part of the peripheral edges of the release paper layer (14) that exceeds the peripheral edges of the silicone oil paper layer (13) is adhered to the part of the peripheral edges of the first non-woven fabric layer (2) that exceeds the peripheral edges of the plaster layer (12); When in use, the release paper layer (14) and the silicone oil paper layer (13) are separated in sequence.

5. The self-heating plaster according to claim 1, characterized in that: The first non-woven fabric layer (2), the second non-woven fabric layer (4), the first microporous breathable membrane (31) and the second microporous breathable membrane (33) have the same external dimensions.

6. The self-heating plaster according to claim 1, characterized in that: The thickness of the first non-woven fabric layer (2) is 1-5 mm.

7. The self-heating plaster according to claim 1, characterized in that: The thickness of the second non-woven fabric layer (4) is 0.5-1 mm.

8. The self-heating plaster according to claim 1, characterized in that: The width of the heat-pressing seal between the edges of the first microporous breathable membrane (31) and the edges of the second microporous breathable membrane (33) is 5-10 mm.

9. The self-heating plaster according to claim 1, characterized in that: A plurality of vertical air holes (301) are provided in the first microporous air-permeable membrane (31) and the second microporous air-permeable membrane (33), and the plurality of air holes (301) are evenly spaced.

10. A plaster patch assembly structure, characterized in that: It comprises the self-heating plaster patch as described in any one of claims 1 to 9, and also includes a sealed package, wherein the self-heating plaster patch is placed in the sealed package and vacuum-packed.

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