CN104434386A - Constant-temperature cold compress bag - Google Patents

Abstract

The invention relates to a constant-temperature cold compress bag applicable to fever cooling and rehabilitation therapy. According to the principle that organic phase change materials produce constant temperature phase changes at low temperature and absorb a large amount of latent heat, the cold compress temperature is effectively controlled, and the cold compress effect is improved; meanwhile, the organic phase change materials have the certain plasticity before complete intersection, and therefore the fit performance of the cold compress bag can be improved. The cold compress bag can be manufactured in different shapes, the fit effect is improved, and therefore the cold compress requirements of different portions are met.

Description

A kind of constant temperature cold compress bag

Technical field

The present invention relates to a kind of constant temperature cold compress bag, particularly a kind of constant temperature cold compress bag for cooling of having a fever, cold compress physiotherapy and rehabilitation.

Background technology

Cold compress is that application of cold temperature stimulates human body body and reaches cooling, pain relieving, stops blooding, alleviates inflammatory edema and ooze out and promote a kind of Therapeutic Method of wound healing rehabilitation.Common cold compress is loaded in bag by cold-producing medium to make cold compress bag, spreads on damage location, to reach the effect of cooling cold compress, and cold compress bag is made into different shapes to fit better with human body different parts, strengthens cold compress effect.If any the cold compress bag (number of patent application 201020611734.0 being specifically designed to facial cold compress, name be called a kind of face cold-compress bag), the nose cold pack (patent No. 200920078136.9, name be called nose cold pack), Groin cold compress bag (200920019918.5, name is called Groin cold compress bag) etc., these special cold compress bags better can be fitted with specific part, enhance cold compress effect.Cold-producing medium in cold compress bag adopts the water of low temperature mostly, and water becomes hard after freezing at 0 DEG C, poor with human contact's comfort, and laminating effect is bad, affects cold compress effect, although can partly solve after ice powder being broken into the very little trash ice of diameter hard, comfort is poor, bad problem of fitting, but ice usually there will be seepage after slowly melting, injury can infect, and brings impact to human body recovery; Adopt waterproof bag can solve the problem of seepage, but in cold compress bag, the temperature of ice is generally at 0 DEG C, even lower, and this is cold injury people human body possibly, causes secondary damage.Application number is 201210126552.8, name is called that the patent of invention of " a kind of cool-storage type cold-producing medium and cool-storage type cold compress bag " discloses a kind of Novel cold-storage agent, this agent for storage of coldness is made up of carbamide 30-40%, ammonium chloride 6-12%, potassium nitrate 6-12%, melon 2-5%, water 35-45%, refrigerant temperature can be low to moderate 2 DEG C, but these raw materials are common agricultural fertilizer, once solution seepage or bag are damaged and agent for storage of coldness flows out when using as cold compress bag, can pollute environment and human body wound, secondary injury is caused to human body.

As mentioned above, at present conventional cold compress bag exists that cold compress material is hard, bad, the temperature of fitting lowly easily causes cold injury, seepage causes wound infection, the uneasy congruent problem of cold-producing medium, and (being greater than 0 DEG C) during cold compress proper temperature has again the problems such as cold compress variations in temperature is large, cold compress effect is bad.

Summary of the invention

In order to overcome the above problems, the invention provides a kind of constant temperature cold compress bag.This constant temperature cold compress bag adopts organic phase change material as cold-producing medium, utilize phase-change material at low temperatures phase transformation time temperature keep substantially constant but can absorb the principle of latent heat in a large number, reach the object strengthening cold compress effect, extend the cold compress time.And organic phase change material stable performance, repeatedly can regenerate use, greatly reduce use cost, save the energy, reduced environmental pollution.

When organic phase change material undergoes phase transition between 2 ~ 15 DEG C, a large amount of latent heat can be absorbed, material temperature substantially constant can be kept, cold compress needs can be met, strengthen cold compress effect, the secondary injuries such as cold injury can not be caused to human body again.

Organic phase change material, in liquid-solid-phase changeable process, when not becoming solid-state completely, has certain plasticity, can make the distortion of cold compress bag appropriateness as required, to adapt to the needs of position difference between human body.

Cold compress bag adopts multilayer copolymerized compound membrane to make packaging bag, seals in bag after splendid attire phase-change material.Multilayer copolymerized compound membrane intensity is high, elongation at break is high, can efficiently stop organic phase change material seepage, and sealing-strength is large, can ensure not to be damaged in normal use procedure.

According to user demand, can make the cold compress bag of different size, weight and shape, strengthen stickiness and the cold compress effect of cold compress bag, extend the cold compress time.

Cold compress bag only needs to put into heat release under the low temperature environments such as refrigerator before use, makes the cold-producing medium release heat in cold compress bag become solid-state, can use.In cold compress bag use procedure after cold-producing medium heat absorption, completely liquefy, endothermic effect declines, and cold compress effect also can decline, the cold compress bag more renewed in time; Cold compress bag after using is reentered in the low temperature environments such as refrigerator and regenerates, and can reuse.

Accompanying drawing explanation

Fig. 1: cold compress bag 1 schematic diagram

Fig. 2: cold compress bag 2 schematic diagram

In figure: 11 is little cold compress bag, 12 is isolation strip, and 13 is hot edge seal, and 21 is hot edge seal, and 22 is rear tab (s), and 23 is front tab (s), and 24 is isolation strip.

Detailed description of the invention

The cutting of cold compress bag encapsulating film material is shaped, adopts heat sealing technology its edge sealing to be become bag, embedding with refrigerant, then seal shaping, obtain cold compress bag.Cold compress bag is put into cold room before cold compress freezing, until cold compress bag inner refrigerant become solid-state after, can use be taken out; During use, cold compress bag is sticked on target location, then fixing with the binding of binder appropriateness, refrigeration machine starts absorption refrigeration, play cold compress effect, after cold-producing medium in cold compress bag becomes liquid state completely, cold compress bag can start to heat up gradually, cold compress effect can decline gradually, if be not strict with cold compress temperature, can continue cold compress a period of time, until cold compress bag becomes room temperature, if have strict demand to cold compress temperature, then need to take off cold compress bag, change the cold compress bag being in constant temperature heat absorption state (solid-state).

According to the shape at cold compress position, difform cold compress bag can be made, increase stickiness.And the cold-producing medium in cold compress bag has certain plasticity when regenerating and not completing completely, now take out the adjustment that its shape can be carried out appropriateness by cold compress bag, laminating better effects if.

Embodiment 1

Rectangle cold compress bag as shown in Figure 1, be of a size of 200mm × 300mm, encapsulating film material is 7 layers of coextrusion-lamination film, its structure is PA/TIE/PE/TIE/PA/TIE/PE, thickness 0.11mm, hot edge seal 13 width is 8mm, and rectangle four angles are circular arc, in-built cold-producing medium is paraffin hydrocarbon, and phase transition temperature is 2 DEG C.The caloric receptivity of this paraffin hydrocarbon is 240KJ/Kg, and cold compress bag gross mass is 200g.Rectangular cold compress bag 1 is isolated into four little cold compress bags 11, closes isolation strip 12 width 2mm between little cold compress bag.Cold compress bag is divided into four connected little cold compress bags, cold compress bag can be bent to increase the coating performance of cold compress bag according to the shape of target location (as shank), and after cold compress bag is closed into connected little cold compress bag, decrease the mobility of liquid refrigerant in bag after phase transformation, in regenerative process, cold compress bag shape matching rule, easy to use.It is more comfortable that the angle of circular arc makes it use.This cold compress bag effective storage life (keep temperature be 2 DEG C) can reach more than 40 minutes, use result to show there is good cold therapy effect, and stickiness is good, easy to use, can Reusability, reduces cold compress cost.

This cold compress bag may be used for the cold therapy at the position such as leg, waist.During use, cold compress bag is placed on target location, fixing with the binding of binder appropriateness.

Embodiment 2

Cold compress bag described in embodiment 1, is of a size of 200mm × 70mm, and in-built cold-producing medium is paraffin hydrocarbon, and phase transition temperature is 15 DEG C, recepts the caloric as 230KJ/Kg, and cold compress bag gross mass is 100g.

This cold compress bag may be used for the cooling cold compress at the position such as forehead, arm.During cold compress, cold compress bag is placed on target location, fixing with the binding of binder appropriateness.

Embodiment 3

Butterfly cold compress bag as shown in Figure 2, encapsulating film material is 7 layers of coextrusion-lamination film, its structure is PA/TIE/PE/TIE/PA/TIE/PE, thickness 0.11mm, the width on cold compress bag involution limit 21 is 8mm, isolation strip 24 on cold compress bag is divided into the little cold compress bag be connected, and isolation strip 24 width is 2mm, adjusts shape, laminating cold compress position when being convenient to cold compress.Cold compress bag entire length 290mm, width 240mm, front tab (s) 23 lateral dimension is 240mm, longitudinal size is 80mm, rear tab (s) 22 longitudinal size is the longest is 180mm, lateral dimension the widest part is 240mm, the narrowest place is 180mm, two tab (s) adjacent spill outer rim place maximum distance is 100mm, in-built paraffin hydrocarbon cold-producing medium, phase transition temperature is 6 DEG C, caloric receptivity can reach 260KJ/Kg, cold compress bag gross mass is 240g, the moving parts such as the cold compress bag of this shape and knee joint can be fitted very well, have good cold therapy effect.

This cold compress bag is suitable for the cold therapy that knee joint etc. needs flexion position.During cold compress, cold compress bag is bent according to kneed shape, then fixing with the binding of binder appropriateness.

Claims (5)

1. a constant temperature cold compress bag, is characterized in that: the cold-producing medium in constant temperature cold compress bag is organic phase change material.

2. constant temperature cold compress bag as claimed in claim 1, is characterized in that: described phase-change material is paraffin hydrocarbon, and transition temperature range is between 2 ~ 15 DEG C.

3. constant temperature cold compress bag as claimed in claim 2, it is characterized in that: cold compress bag is rectangle, be of a size of 200mm × 300mm, cold compress bag is isolated into four small rectangles (11), closing isolation strip (12) width between rectangle pouch is 2mm, rectangle four angles are circular arc, encapsulating film material is 7 layers of coextrusion-lamination film, its structure is PA/TIE/PE/TIE/PA/TIE/PE, thickness 0.11mm, hot edge seal width (13) is 8mm, cold-producing medium is paraffin hydrocarbon, phase transition temperature is 2 DEG C, caloric receptivity is 240KJ/Kg, cold compress bag gross mass is 200g.

4. constant temperature cold compress bag as claimed in claim 3, it is characterized in that: described cold compress bag is of a size of as 200mm × 70mm, described cold-producing medium is paraffin hydrocarbon, and phase transition temperature is 15 DEG C, recepts the caloric as 230KJ/Kg, and cold compress bag quality is 100g.

5. constant temperature cold compress bag as claimed in claim 2, it is characterized in that: described phase-change material is paraffin hydrocarbon, phase transition temperature is 6 DEG C, caloric receptivity is 260KJ/Kg, cold compress bag gross mass is 240g, its shape is butterfly, overall dimensions is 290mm × 240mm, front tab (s) (23) lateral dimension is 240mm, longitudinal size is 80mm, rear tab (s) (22) longitudinal size is the longest is 180mm, lateral dimension is 240mm and 180mm, two tab (s) spill outer rim place maximum distances are 100mm, encapsulating film material is 7 layers of coextrusion-lamination film, its structure is PA/TIE/PE/TIE/PA/TIE/PE, thickness 0.11mm, hot edge seal width (21) is 8mm, isolation strip (24) width 2mm.