CN201832006U - Chemical refrigeration type cold compress patch - Google Patents

Abstract

The utility model belongs to the field of medical equipment, and specifically discloses a chemical refrigeration type cold compress, which comprises a sealed plastic soft packaging bag (1) with a built-in chemical refrigerant, and the sealed plastic soft packaging bag (1) is covered with cold storage The material layer (2), the cold storage material layer (2) is provided with a sealed and heat-insulating interlayer (3), and the sealed and heat-insulated interlayer (3) is provided with an adhesive film layer (4), wherein the sealed plastic flexible packaging bag (1 ) is divided into two independent spaces by a spacer (5), one independent space is built with inorganic solute salts, and the other independent space is built with solvent salts; the sealed heat-insulating interlayer (3) is built with water-absorbing resin. The utility model overcomes the defects of the existing conventional cold packs that need long-term low-temperature storage, inconvenient use, damp parts of the cold pack, poor cooling effect, and inability to fit local tissues of the human body, and has the characteristics of good cooling effect and convenient storage.

Description

A chemical refrigeration type cold compress

technical field

The utility model belongs to the field of medical equipment, and specifically discloses a chemical refrigeration type cold compress which is suitable for post-trauma, post-surgical, and internal medicine patients with fever.

Background technique

At present, after various traumas, surgical operations, and patients with fever in internal medicine need local external application to cool down, ordinary ice packs are often used, which are composed of ordinary ice cubes, single polymer materials, and volatile reagents. Poor cooling effect, inability to adhere to local tissues of the human body and other defects, thus reducing the therapeutic effect of cold compresses, and even causing local frostbite, infection and other complications. How to improve the curative effect of cold compress in medical practice has become an urgent technical problem to be solved for a long time.

Cold compress is a relatively economical physical therapy, which is widely used in clinical practice. However, it has been found in practice that the ice packs currently used for ice compresses in clinical practice are not special medical ice packs, and there have been many problems in the process of clinical use, such as: the low temperature maintained by ice cubes at room temperature is very short; the hardness of ice cubes Higher, coupled with the material problem of the ice pack itself, it is easy to puncture the ice pack; after the ice cube melts, ice water will easily flow out from the seal, contaminating the wound and the quilt; The actual area of the cold compress is affected, so the effect of the cold compress treatment is greatly affected.

A large number of clinical studies have already affirmed the therapeutic effect of ice compresses, confirming that cold compresses can effectively shrink local peripheral blood vessels, reduce peripheral blood flow, reduce blood vessel permeability, help reduce exudation, and prevent inflammatory reactions occur; it also reduces swelling and bleeding. At the same time, cold compresses can inhibit the sensation of nerve endings, temporarily slow down local nerve conduction velocity, reduce sensory sensitivity, and achieve analgesic effect.

At present, the external cooling materials used in medical treatment mainly consist of the following types:

(1). The disadvantages of ordinary ice cubes are: long-term low-temperature refrigeration, short cold compress time, uneven cold compress effect, local frostbite, and local condensed water accumulation, resulting in damp cold compress and fixed shape.

(2). The disadvantages of ordinary ice packs are: long-term low-temperature refrigeration, short cold compress time, uneven cold compress effect, local frostbite, local condensation water accumulation, resulting in damp cold compress and fixed shape.

(3). The disadvantages of a single polymer material are: long-term low-temperature storage, local frostbite, and local condensed water accumulation, resulting in dampness at the cold compress.

(4). The disadvantages of volatile reagents are: volatile reagents stimulate local tissues, and the effect of cold compress is poor.

(5). The disadvantages of simple chemical refrigeration ice packs are: the formula of the refrigerant is simple, the cooling effect is poor, the time is short, the effect of cold compress is uneven, local frostbite, and local condensed water gathers to make the cold compress wet, which cannot fit the local tissues of the human body. etc., such as the ready-to-use chemical cold compress bag provided by the Chinese utility model patent with the notification number CN201185985Y, the cold compress bag provided by the Chinese utility model patent with the notification number CN2701420Y, etc.

Contents of the invention

The technical purpose of the utility model is to overcome the defects of the existing conventional cold packs that require long-term low-temperature storage, inconvenient use, local humidity of the cold pack, poor cooling effect, and inability to fit local tissues of the human body, etc., and provide a cold pack with good cooling effect and long duration. , Clean and dry, free to shape, easy to operate, fully fit the human body, non-toxic and side effects to the human body, non-allergenic, and good biocompatibility cold compress.

In order to realize the purpose of the invention of the utility model, the inventor provides the following technical solutions:

A chemical refrigeration type cold compress, which comprises a sealed plastic flexible packaging bag with a built-in chemical refrigerant, the sealed plastic flexible packaging bag is covered with a cold storage material layer, and a sealed and heat-insulating interlayer is arranged outside the cold storage material layer. A viscous film layer is arranged outside the thermal interlayer, wherein the sealed plastic flexible packaging bag is divided into two independent spaces by a spacer, one independent space is built with inorganic solute salts, and the other independent space is built with solvent salts; the sealed and heat-insulated The interlayer is built with water-absorbent resin. the

The cold compress provided by the utility model separates the two substances of inorganic solute salt and solvent salt into an independent inner bag and packs them. Since the inner bag is made of plastic soft packaging, the spacer part can be removed by external force extrusion, so that the two chemical substances can be mixed. The cooling effect will be produced in an instant, and the operation is very simple. The cold storage material layer of the utility model adopts a polymer cold storage material, which is in the form of gel, and has the characteristics of softness and plasticity below 0°C. It will not melt at normal temperature and can be molded into various Various shapes, and can slowly release the cooling effect to prevent local frostbite. The sealing and heat-insulating interlayer of the utility model is made of heat-insulating material, and the heat-insulating interlayer is built with water-absorbing resin, which can absorb locally generated condensed water, thereby keeping the part dry. The adhesive film layer adopted in the outermost layer of the utility model is an air-permeable adhesive film layer, which can be pasted with local tissues of the human body while maintaining air permeability, has no toxic side effects on the human body, has no sensitization, and has good biocompatibility. The material that each layer of the utility model adopts is all commercially available materials.

As a preferred solution, according to a chemical refrigeration type cold compress according to the present invention, the thickness of the cold storage material layer is 0.5-1 cm. Research has found that the cold storage material layer in the utility model is controlled within the thickness range mentioned above, which has a better cooling effect. If it is larger than 1 cm, the cooling effect will be poor; if it is smaller than 0.5 cm, local frostbite will occur.

As a preferred solution, according to a chemical refrigeration type cold compress according to the present invention, the heat insulating interlayer is made of heat insulating material and the thickness of the interlayer is 0.1-0.5cm. Research has found that the sealed and heat-insulating interlayer in the utility model is controlled within the thickness range mentioned above, which has better cooling effect and drying effect. If it is larger than 0.5 cm, the cooling effect will be poor; Causes poor drying effect.

As a preferred solution, according to a chemical refrigeration type cold compress according to the present invention, wherein the inorganic solute salt is NH ₄ NO ₃ , and the solvent salt is NA ₂ HPO ₃ ·12H ₂ O, wherein NH ₄ NO ₃ : The weight ratio of NA ₂ HPO ₃ ·12H ₂ O is 9:10. Research has found that the inorganic solute salt and solvent salt built into the plastic flexible packaging bag of the utility model have the best refrigeration effect under the above-mentioned types and proportions. After the two substances NH ₄ NO ₃ and NA ₂ HPO ₃ ·12H ₂ O are fully mixed, the temperature will drop below 0°C within 2 minutes, and the refrigeration effect can be maintained for 4-6 hours.

As a preferred solution, according to the chemical refrigeration type cold compress according to the present invention, the spacer is a heat-pressed sealing indentation. Research has found that since the utility model uses plastic flexible packaging bags to contain chemical refrigerants, as long as the inner bag is separated into two parts by using heat-press sealing technology, independent packaging of two chemical refrigeration systems can be realized, and when the heat-press seal and indentation are used It can be canceled by external force extrusion, which is a very economical and simple way of spacing.

As a preferred solution, according to a chemical refrigeration type cold compress according to the present invention, the adhesive film layer adopts a breathable adhesive film and is pasted with a release paper or a PE release film. The air-permeable sticky film layer can stick to the local tissues of the human body and maintain air permeability. It has no toxic and side effects on the human body, has no allergies, and has good biocompatibility. Using release paper or PE release film, it is more convenient to use.

As a preferred solution, according to a chemical refrigeration type cold compress according to the present invention, the layers are bonded with medical adhesive. This bonding method is simple and economical.

Compared with the prior art, the utility model has the following advantages:

It overcomes the shortcomings of the existing conventional cold packs that require long-term low-temperature storage, inconvenient use, wet parts of the cold pack, poor cooling effect, and inability to fit local tissues of the human body. It is a chemical refrigeration cold compress that is compact, easy to operate, fits perfectly with the human body, has no toxic and side effects on the human body, has no allergies, and has good biocompatibility.

Description of drawings

Fig. 1 is the structural representation of the chemical refrigeration type cold compress of the present utility model;

Fig. 2 is the A-A direction sectional view of Fig. 1 of the utility model,

Among them, 1 in the figure is a sealed plastic flexible packaging bag, 2 is a cold storage material layer, 3 is a sealed and heat-insulating interlayer, 4 is an adhesive film layer, and 5 is a heat-insulating component.

Detailed ways

Below in conjunction with embodiment and accompanying drawing, more specifically illustrate the content of the invention of the utility model. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any modifications and/or changes made to the utility model will fall within the protection scope of the utility model.

Example 1:

In the embodiment, the weight ratio of NH ₄ NO ₃ : NA ₂ HPO ₃ ·12H ₂ O=9:10 is poured into the sealed plastic flexible packaging bag 1 .

As shown in Fig. 1 and Fig. 2, a kind of chemical refrigeration type cold compress, its composition comprises the sealed plastic flexible packaging bag 1 that has built-in chemical refrigerant, described sealed plastic flexible packaging bag 1 is covered with 1cm cold storage material layer 2, The cold storage material layer 2 is provided with a 0.1 cm sealed and heat-insulating interlayer 3, and the sealed and heat-insulated interlayer 3 is provided with an adhesive film layer 4. The adhesive film layer adopts a breathable adhesive film and is pasted with a release paper, wherein the sealing plastic The flexible packaging bag 1 is divided into two independent spaces by the heat-press sealing indentation 5 of the spacer, one independent space contains the inorganic solute salt NH ₄ NO ₃ , and the other independent space contains the solvent salt NA ₂ HPO ₃ ·12H ₂ O; The above-mentioned sealed and heat-insulating interlayer 3 is built with water-absorbing resin; the layers are bonded with medical adhesive.

Example 2

In the embodiment, the weight ratio of NH ₄ NO ₃ : NA ₂ HPO ₃ ·12H ₂ O=9:10 is poured into the sealed plastic flexible packaging bag 1 .

As shown in Fig. 1 and Fig. 2, a kind of chemical refrigeration type cold compress, its composition comprises the sealed plastic flexible packaging bag 1 that has built-in chemical refrigerant, and described sealed plastic flexible packaging bag 1 is covered with 0.5cm cold storage material layer 2 , the cold storage material layer 2 is provided with a 0.5cm sealed and heat-insulating interlayer 3, and the sealed and heat-insulated interlayer 3 is provided with an adhesive film layer 4. The adhesive film layer adopts an air-permeable adhesive film and is pasted with a PE release film, wherein the The sealed plastic flexible packaging bag 1 is divided into two independent spaces by heat-pressing seal indentation 5 of the spacer, one independent space is built with inorganic solute salt NH ₄ NO ₃ , and the other independent space is built with solvent salt NA ₂ HPO ₃ ·12H ₂ O ; The sealed and heat-insulating interlayer 3 is built with a water-absorbing resin; the layers are bonded with medical adhesive.

When the cold compress of the utility model is used, the separation is canceled by external force, and the two chemical substances are fully mixed to produce a cooling effect instantly, and the cold effect is transmitted to the gel-like polymer cold storage material. The outer layer of the cold storage material is heat-insulating. The material can effectively prevent excessive cold and heat exchange with the outside world, and the gel-like polymer cold storage material can release the cold effect smoothly and evenly, achieving a long-term and suitable cold compress effect. The water-absorbing resin built into the insulation interlayer can effectively absorb the condensed water generated by local low temperature, so as to achieve the purpose of dry and clean cold compress. Remove the release paper or PE release film and fully attach and fix the breathable adhesive film on the desired cold compress area to achieve efficient cold compress therapy.

The chemical refrigerant of the utility model is mainly composed of two kinds of inorganic solute salts and solvent salts with high dissolved heat absorption value, and formulated according to a specific ratio to achieve a better refrigeration effect. The two chemical substances are separated by a plastic soft package, When in use, the separation can be canceled by external force, and the two chemical substances can be fully mixed to produce a cooling effect instantly, which solves the defect of inconvenient storage of ice packs.

The above preferred embodiments are only used to illustrate and explain the content of the utility model, and do not constitute a limitation to the content of the utility model. Although the inventor has listed the utility model in detail, those skilled in the art can make various modifications or/or to the described specific embodiments according to the contents disclosed in the summary of the invention and the embodiments It is obvious to supplement or replace in a similar manner, and can achieve the technical effect of the present utility model, so details will not be repeated here. The terminology appearing in the utility model is used for explaining and understanding the technical solution of the utility model, and does not constitute a limitation to the utility model.

Claims (7)

1. a chemical refrigeration formula cold compress is pasted, its composition comprises the sealed plastic soft packaging bag (1) that is built-in with chemical refrigerant, it is characterized in that, described sealed plastic soft packaging bag (1) is coated with the coolness storing material bed of material (2), the outer sealing insulating sandwich (3) that is provided with of the coolness storing material bed of material (2), sealing insulating sandwich (3) peripheral hardware toughness pad pasting layer (4), wherein said sealed plastic soft packaging bag (1) is divided into two separate space by distance member (5), a separate space is built-in with inorganic solute salt, and another separate space is built-in with lyonium salt; Described sealing insulating sandwich (3) is built-in with water-absorbing resin.

2. a kind of chemical refrigeration formula cold compress according to claim 1 is pasted, and it is characterized in that the thickness of the described coolness storing material bed of material (2) is 0.5-1cm.

3. a kind of chemical refrigeration formula cold compress according to claim 1 is pasted, and it is characterized in that, it is 0.1-0.5cm that described insulating sandwich (3) adopts heat-barrier material and thickness of interlayer.

4. a kind of chemical refrigeration formula cold compress according to claim 1 is pasted, and it is characterized in that described inorganic solute salt is NH ₄NO ₃, lyonium salt is NA ₂HPO ₃12H ₂O, wherein, NH ₄NO ₃: NA ₂HPO ₃12H ₂The weight ratio of O is 9:10.

5. a kind of chemical refrigeration formula cold compress according to claim 1 is pasted, and it is characterized in that described distance member (5) is the hot-press sealed impression.

6. a kind of chemical refrigeration formula cold compress according to claim 1 is pasted, and it is characterized in that, described viscosity pad pasting layer adopts the viscosity pad pasting of breathability and posts release paper or the PE mould release membrance.

7. a kind of chemical refrigeration formula cold compress according to claim 1 is pasted, and it is characterized in that, adopts medical viscose glue bonding between described each layer.

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