阅读说明：本技术 一种自冷式退热贴 (Self-cooled subsides of bringing down a fever ) 是由 董海林 黄飞 于 2020-06-03 设计创作，主要内容包括：本申请涉及医疗技术领域,公开了一种自冷式退热贴,包括用于与使用者接触吸收热量的凝胶层和包装部,还包括与凝胶层产生热交换的吸热反应层,所述吸热反应层包括相互隔离设在包装部中的制冷剂和水,破坏所述包装部使制冷剂和水混合后的溶液温度下降降温。本发明通过凝胶层与使用者之间产生热交换来为使用者降温,同时利用吸热反应层对凝胶层进行预冷处理,且在使用时与凝胶层之间产生热交换来延长本发明的有效使用时长。(The application relates to the technical field of medical treatment, discloses a self-cooling subsides of bringing down a fever, including being used for with user's contact absorbed heat's gel layer and packing portion, still include the endothermic reaction layer that produces the heat exchange with the gel layer, endothermic reaction layer is including refrigerant and the water of mutual isolation establishing in packing portion, destroys the solution temperature drop cooling after packing portion makes refrigerant and water mix. The invention cools the user by generating heat exchange between the gel layer and the user, and simultaneously precools the gel layer by utilizing the endothermic reaction layer, and the heat exchange is generated between the gel layer and the gel layer when in use, thereby prolonging the effective use time of the invention.)

1. A self-cooling patch comprising a gel layer (4) for absorbing heat in contact with a user and a packaging portion (1), characterized in that: still include and produce the endothermic reaction layer of heat exchange with gel layer (4), endothermic reaction layer is including refrigerant and the water of mutual isolation establishing in packing portion (1), destroys solution temperature drop cooling after packing portion (1) makes refrigerant and water mix.

2. A self-cooling heat patch as claimed in claim 1, wherein: the temperature of the mixed solution of the refrigerant and the water is reduced by 5-20 ℃.

3. A self-cooling heat patch as claimed in claim 1, wherein: the endothermic reaction layer comprises 8-18 parts of ammonium nitrate and 10 parts of water by weight.

4. A self-cooling heat patch as claimed in claim 3, wherein: the refrigerant is arranged in the endothermic reaction layer in a structural form of large particles with the particle size not less than 3mm and small particles with the particle size not more than 0.5 mm;

the mass percentage of the small particles to the large particles is within the range of 10-15%;

the large particles contain 8-15% by mass of crosslinked carboxymethyl cellulose with a high degree of substitution.

5. A self-cooling heat patch as claimed in claim 4, wherein: the endothermic reaction layer comprises, by weight, 2-4 parts of ammonium chloride, 6-14 parts of ammonium nitrate and 10 parts of water.

6. A self-cooling heat patch as claimed in claim 4, wherein: the heat-absorbing reaction layer comprises, by weight, 3-5 parts of urea, 1-3 parts of ammonium chloride, 6-14 parts of ammonium nitrate and 10 parts of water.

7. A self-cooling heat patch according to any one of claims 1 to 6, wherein: the water content of the gel layer is not less than 65%.

8. A self-cooling heat sink as recited in claim 7, wherein: the packaging part (1) is sealed at the outside, a breakable diaphragm (2) is arranged in the packaging part to divide the packaging part into two cavities, and a refrigerant and water are respectively filled in the two cavities.

9. A self-cooling heat patch as claimed in claim 8, wherein: the bottom of the packaging part (1) is provided with a groove for accommodating the gel layer (4), and an opening of the groove is provided with a protective layer.

10. A self-cooling heat patch as claimed in claim 9, wherein: and air holes (3) are formed in the side surfaces of the grooves.

Technical Field

The invention relates to the technical field of medical treatment, in particular to a self-cooling type cooling patch.

Background

The cooling paste is a common cold compress appliance, and takes away heat mainly through rapid evaporation of moisture in a contained gel layer, so as to achieve the effects of cooling and reducing the temperature. The antipyretic patch is widely used in clinical and daily life, is accepted by more and more people by virtue of the advantages of simple use and quick effect, and particularly has good effect when used for children and parents in a family to have fever. The existing cooling paste has obvious defects that firstly, the cooling paste cannot cool automatically, the product needs to be cooled in a refrigeration mode, and the timeliness is poor; secondly, the duration of use is very short, and if the ideal defervescence effect is to be achieved, the use cost is increased because the use needs to be continuously replaced.

Disclosure of Invention

In order to solve the problems that self-cooling cannot be achieved and the use duration is short in the prior art, the self-cooling type continuous cooling paste is provided.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the utility model provides a self-cooling subsides of bringing down a fever, includes the gel layer and the packing portion that are used for contacting absorbed heat with the user, still includes the endothermic reaction layer that produces the heat exchange with the gel layer, endothermic reaction layer includes that mutual isolation establishes refrigerant and water in the packing portion, destroys the solution temperature after packing portion makes refrigerant and water mix drops the cooling.

The heat is concentrated into jelly by utilizing the physical heat absorption principle of the gel layer in the scheme, and the heat in the body of a user is taken away through the gel, and the method has the same principle as the existing defervescence patch. When in use, the product can be directly used or used after precooling by a refrigerator. However, only depending on the gel layer for defervescence, the effective use time is short, and the replacement frequency is high. Therefore, the heat absorption reaction layer is added to prolong the effective service time of the heat-removing paste. The heat absorption reaction layer absorbs heat when reacting by mixing the refrigerant and water, and exchanges heat with the gel layer. Not only can cool the gel layer to a lower temperature before use, improve the heat exchange effect between the gel layer and a user, but also can keep the gel layer at a lower temperature under the continuous heat absorption effect of the heat absorption reaction layer when in use. In contrast, the conventional common hydrogel antipyretic patch needs a certain time for precooling, and is not suitable for use in emergency situations.

Further, the temperature of the mixed solution of the refrigerant and the water is reduced by 5-20 ℃.

When the solution temperature drops by 5 ℃ at least, even can not carry out the precooling to the gel layer, but when using the gel layer to cool down for the human body, can produce the micro heat exchange between refrigeration reaction layer and the gel layer, prolong the effective live time of subsides of bringing down a fever in this application. When the temperature of the solution is reduced by 20 ℃, the heat-absorbing reaction layer can achieve the function of precooling the gel layer, and the gel layer is directly contacted with a human body, so that the temperature is not too low, and stimulation is avoided, therefore, when the temperature of the solution is reduced by more than 20 ℃, although the gel layer can be precooled, the temperature is too low, and the solution has a negative effect on a fever user.

Further, the heat-absorbing reaction layer comprises 8-18 parts of ammonium nitrate and 10 parts of water in parts by weight.

Further, the refrigerant is arranged in the endothermic reaction layer in a structural form of large particles with the particle size not less than 3mm and small particles with the particle size not more than 0.5 mm; the mass percentage of the small particles to the large particles is within the range of 10-15%; the large particles contain 8-15% by mass of crosslinked carboxymethyl cellulose with a high degree of substitution.

Further, the heat-absorbing reaction layer comprises 2-4 parts of ammonium chloride, 6-14 parts of ammonium nitrate and 10 parts of water in parts by weight.

Further, the heat-absorbing reaction layer comprises 3-5 parts of urea, 1-3 parts of ammonium chloride, 6-14 parts of ammonium nitrate and 10 parts of water in parts by weight.

The ammonium salt is used as a refrigerant, and the property that the ammonium salt is easily soluble in water and absorbs heat when dissolving water is utilized. Wherein urea is also called carbamide and has the chemical formula of CO (NH)₂)₂The urea absorbs heat when dissolved in water to cause the water temperature to drop, and is a refrigerant which is more environment-friendly and is easy to obtain. Ammonium chloride of the formula NH₄CL, a strong acid and weak base salt, when dissolved in water, combines ammonium ions ionized by ammonium chloride and hydroxide ions ionized by water to form a weak electrolyte, and this reaction is endothermic. Ammonium nitrate of the formula NH₄NO₃The dissolution of ammonium nitrate in water is a physical process, and similar to the dissolution of urea in water, it absorbs heat to cause a temperature drop.

Further, the water content of the gel layer is not less than 65%.

Furthermore, the packaging part is sealed at the outside, a breakable diaphragm is arranged in the packaging part to divide the packaging part into two cavities, and the two cavities are respectively filled with the refrigerant and the water.

This scheme holds refrigerant and water with inclosed packing portion, prevents it and leaks, can avoid the reaction product of refrigerant and water to leak simultaneously. Especially, the leakage of the refrigerant may damage the skin. The diaphragm divides the interior of the package into two chambers to separate the refrigerant from the water. The membrane can be damaged, namely the membrane loses the isolation effect under the action of artificial extrusion, and the refrigerant and water are contacted and mixed to generate reaction. Specifically, the purpose of contacting the refrigerant and water can be achieved by breaking the connection between the diaphragm and the packaging part or breaking the diaphragm itself.

Furthermore, a groove for accommodating the gel layer is formed in the bottom of the packaging part, and a protective layer is arranged at an opening of the groove. The groove is used for installing the gel layer, the gel layer can be clamped in the groove by utilizing the elasticity of the gel layer and the elasticity of the packaging part, and the gel layer can be stuck in the groove by utilizing an adhesive. The protective layer protects the gel layer from contamination when the present invention is not in use. It should be noted that the protective layer may be made of plastic film, woven cloth, paper, or other materials having a barrier effect.

Furthermore, the side surface of the groove is provided with an air hole. When the gel layer is heated, the water in the gel layer is evaporated to take away heat, and the air holes are favorable for the emission and heat dissipation of water vapor.

The invention has the beneficial effects that: the invention cools the user by generating heat exchange between the gel layer and the user, and simultaneously precools the gel layer by utilizing the endothermic reaction layer, and the heat exchange is generated between the gel layer and the gel layer when in use, thereby prolonging the effective use time of the invention. Meanwhile, the heat absorption reaction layer adopts a closed packaging part to contain the refrigerant and water, so that the refrigerant and the heat absorption reaction product are prevented from leaking to damage a user.

Drawings

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

FIG. 1 is a graph showing the results of verification in example 2 of the present invention;

FIG. 2 is a graph showing the verification result in example 4 of the present invention;

FIG. 3 is a schematic view showing a structure of a packing part in the present invention;

FIG. 4 is an enlarged partial schematic view at A of FIG. 3;

FIG. 5 is a sectional view of the packing part of the present invention;

FIG. 6 is a schematic view of the arrangement of the refrigerant, water and gel layer in the present invention;

FIG. 7 is a schematic view showing the structure of a separator according to example 8 of the present invention;

FIG. 8 is a schematic view showing the structure of a separator according to example 9 of the present invention;

in the figure: 1-a packaging part; 2-a separator; 201-upper diaphragm; 202-lower diaphragm; 203-sealing strip; 204-a fixed part; 205-a breaking portion; 3, air holes; 4-a gel layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.