JP4938177B2 - Cold / warm pad - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cold / warm pad that is used by being attached to joint parts of limbs such as knees, elbows, wrists, ankles, etc., and is particularly suitable for suppressing inflammation after knee surgery. The present invention relates to a cold insulation pad.
[0002]
[Prior art]
Conventionally, as a method of cooling joints that have been inflamed by exercise or surgery, a plastic sheet having flexibility is superposed and a peripheral edge is fused to form a bag body, and a cold insulation agent is formed in the bag body. There is known a method of cooling by using a cold insulation pad enclosing a sachet and applying it to a joint. As the cryogen, gel-like materials are generally used because they can minimize contamination due to liquid leakage at the time of bag breaking, have excellent cold insulation properties, and have moderate flexibility even at ice temperature. .
[0003]
However, in the cooling pad having such a configuration, even if the bag body and the cold insulation agent have appropriate flexibility, the flexibility decreases depending on the thickness of the pad when the bag body is filled with the cold insulation agent. There was a problem that it was difficult to adhere to the part and the cooling capacity was inferior. Further, when the cooling pad is bent by applying a force, there is a problem that a part having an extremely large amount of the cold / heat insulating agent and a part having a small amount of the cold / heat insulating agent are generated, resulting in a partial difference in cooling ability.
[0004]
As a method for solving the above problem, it is also conceivable to form a plurality of blocks by fusing the inside of the bag body at an appropriate interval and filling each block with a cooling agent. According to this method, since the cold insulating agent is divided into the respective blocks, it is possible to easily bend both side portions around the fused portion, and to improve the adhesion to the joint portion.
[0005]
[Problems to be solved by the invention]
However, in the cooling pad having the above-described configuration, it is necessary to fill each block with a cooling agent, and the manufacturing process becomes complicated, resulting in a problem of low productivity.
[0006]
Then, in view of the said situation, in this invention, it aims at providing the pad for cooling excellent in the adhesiveness to a joint part and having high productivity.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a cold insulation / heat insulation pad according to the present invention comprises a flexible plastic bag body and a cold insulation / heat insulation agent enclosed in the bag body. , Consisting of a substantially central part located at the corner part such as the outer surface of the joint part such as the elbow and the knee or the outer surface of the buttocks part, and a peripheral contact part contacting the peripheral part of the corner part. A fused portion that is divided into two sections is formed, and adjacent sections are in communication with each other .
[0008]
According to the above configuration, the inside of the peripheral contact portion is divided into a plurality of sections by the fused portion, and the cold insulation / heat insulation agent is divided. Therefore, the cold insulation / heat insulation pad having improved flexibility and excellent adhesion is provided. Obtainable. In addition, since each compartment is in a communication state, the cold and heat insulating agent flows in a properly controlled state in the compartment, and uniform cooling and heating without partial excess or shortage of the cold and heat insulating agent. Thermal insulation is possible.
[0009]
In addition, since each compartment is in a communication state, it is possible to fill the inside of the bag body with the cold insulation / heat insulation agent by forming only one injection port at the time of the cold insulation / heat insulation agent filling. Become.
[0010]
The fused part can be formed in an arbitrary shape such as an arc shape or a lattice shape, but in particular, if each section is formed so as to be arranged radially about the center part, the periphery is compared to other shapes. This is preferable in that the flexibility at the contact portion can be further improved.
[0011]
Specifically, each section is formed by arranging a plurality of fused portions radially at the peripheral abutting portion around the substantially central portion. Each section is in a communication state in at least one region of the substantially central portion, the peripheral portion, or an intermediate region of the bag body. That is, the upper and lower sheets constituting the bag body are thermally fused at a plurality of locations to form a fused portion, and when the peripheral abutting portion is divided into a plurality of sections, the fused portion that does not reach the substantially central portion is formed. Thus, each section can be in a communication state at a substantially central portion. Moreover, if it is set as the melt | fusion part which does not reach a bag body peripheral part, it can be set as a communication state in the bag peripheral part vicinity. Furthermore, each section can be brought into a communication state by making the intermediate portion discontinuous in each fused portion.
[0012]
In addition, as described above, when the fused portion does not reach the substantially central portion, the substantially central portion is defined as one compartment, and each compartment formed in the peripheral contact portion is communicated with the substantially central portion.・ Filling of the heat insulating agent can be performed more smoothly. That is, when filling the inside of the bag body with a cold insulation / heat insulating agent, an injection port is usually provided in advance on the outer peripheral edge of the bag body, from which the cold insulation / heat insulation agent is injected into the bag body, A method of sealing and closing the bag body is employed. In such a case, when the cold insulation / heat insulation agent is injected into the bag body configured as described above, the cold insulation / heat insulation agent passes through the section of the peripheral abutting portion adjacent to the injection port and is sent to the substantially central portion from there. Since it is distributed directly to the compartments, there is little resistance during injection and smooth filling is possible.
[0013]
Furthermore, as a fusion part that does not reach the peripheral part of the bag body, if the respective compartments are in communication with each other even in the vicinity of the peripheral part of the bag body, the cold storage / incubation from both the central part and the vicinity of the peripheral part can be performed at the time of injecting cold insulation and heat insulation agent. Since the heat-retaining agent is filled in each compartment, even a highly viscous gel can be filled in a short time.
[0014]
The substantially central part is a part located at the corner part such as the outer surface of the joint part such as the shoulder, elbow, knee or the like, and the outer part of the hip part. It is difficult to follow, and the flexibility of the cold / warm pad is hindered, and the adhesion may be lowered. Therefore, in the present invention, it is possible to adopt a configuration in which a through hole is formed in a substantially central portion, and by applying the through hole to the corner portion, the adhesion to the corner portion of the cold and heat insulating pad is improved, and the joint portion Stable mounting to the whole is possible.
[0015]
What is necessary is just to use the bag body which overlap | superposed and sealed the plastic sheet | seat which has flexibility, for example, what was heat-sealed, and if a fusion | melting part is formed simultaneously with heat sealing, without reducing productivity. It becomes possible to form a fused part. The bag body can be used in various shapes such as circular and square, but the central part is positioned at the corner part such as the outer surface of the joint part or the outer surface of the buttocks, and the peripheral contact part is along the peripheral part. From the viewpoint of use, it is preferable to use a rectangular shape in that it has a large cold insulation / heat insulation area and can wrap and fix the peripheral contact portion around the peripheral portion.
[0016]
The material of the bag is not particularly limited as long as it is made of a plastic that can be fused, and examples thereof include polyolefins such as polypropylene and polyethylene, polyvinyl chloride, polyamide, and polyurethane. Further, a laminate in which a resin sheet such as polyethylene, which can be fused, is laminated on the inner layer side and a resin sheet, such as polyester, which has poor fusibility, is laminated on the outer layer side can also be used.
[0017]
As described above, it is desirable that the cold / heat retention agent can minimize contamination due to liquid leakage at the time of bag breaking, has excellent cold / heat retention properties, and has appropriate flexibility even under ice temperature. Viscosity fluids or gels are preferably used. As a thickener or gelling agent for forming a high-viscosity fluid or gel, carboxymethyl cellulose, polyvinyl alcohol, sodium polyacrylate, and the like can be suitably used, and further, polyhydric alcohol, etc. If a freezing point depressant is added as appropriate, it is possible to obtain a cold / heat insulating agent having flexibility even at low temperatures.
[0018]
As the above-mentioned cold insulation / heat insulation pad, it has a function of suppressing inflammation by being attached to the joint in a state of being stored cold by cooling, or blood circulation by being attached to the joint in a state of being stored by heating. Any of those having a function to promote or those having both functions may be used.
[0019]
In order to improve the flexibility of the pad, it is desirable to form a notch in the bag. The angle of the notch and the position thereof may be adjusted as appropriate, but in order to closely attach the cold / warm pad to the peripheral part, the peripheral abutting part is made of at least two or more divided bodies, leaving a substantially central part. In particular, the notch portion is formed on the same left and right lines with the substantially central portion sandwiched therebetween, and the bag body portion above this line is wrapped around the upper peripheral portion of the corner portion, and is more than the line. If the lower bag portion is wrapped around and fixed to the lower peripheral portion of the corner portion, the pad does not slip off during use, and stable mounting is possible.
[0020]
To attach the cold / warm pad to the joint, a fixed band may be used. The fixing band may be formed separately from the cold / warm pad, but preferably it can be secured to the end of the bag body to obtain a cold / warm pad with excellent portability.
[0021]
As a mode of fixing the fixing band to the bag body, either a mode of fixing to two opposite sides of the bag body or a mode of fixing to one side may be adopted. The locking means for the fixing band is not particularly limited. For example, a band provided with a hook at the end of the band can be used, but if a hook-and-loop fastener is used, the band can be fixed at an arbitrary position. Become. When adopting a mode in which the fixing band is fixed to one side, a hook-and-loop fastener can be suitably used as the locking means. Specifically, one type of male or female hook-and-loop fastener is formed on the entire surface of the band, and the other band-type fastener is formed on the back of the band. What is necessary is just to latch the hook-and-loop fastener formed in the back surface front-end | tip at the arbitrary positions on the surface.
[0022]
The material of the fixing band is not particularly limited as long as it can fix the bag body to the joint part. However, if a fixing band that can be expanded and contracted in the length direction is used, a cold insulation with excellent adhesion between the bag body and the joint part. -A warming pad can be obtained.
[0023]
In this case, if the fixing band is wound around the peripheral part with the peripheral abutting part for one or more turns and fixed, the amount of the cold and heat insulating agent in the substantially central part can be suppressed and more uniform cooling is possible. It becomes. That is, the substantially central portion is the most bent portion in contact with the corner portion, and the bending of the corner portion generates a force that presses the pad to the substantially central portion, so that the cold and heat insulating agent is applied from the substantially central portion to the peripheral portion. Attempts to flow to the contact. Therefore, if the surface of the peripheral abutting part is appropriately pressed by the expansion and contraction force of the fixing band, the flow of the cold / heat insulation agent is suppressed, thereby preventing the partial excess or deficiency of the cold insulation / heat insulation agent and uniform cooling. Is possible.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of a cold / warm pad according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing a cold / warm pad. The cold / warm pad 1 includes a substantially rectangular bag 2 formed by superposing and fusing two plastic sheets, and a fixing belt 3 fixed to the short side of the bag 2. The inside of the bag body 2 is filled with a cold and heat insulating agent.
[0025]
The bag body 2 includes a substantially central portion 4 having a through hole 5 and a peripheral abutting portion 6, and the peripheral abutting portion 6 has a plurality of fusion portions 7 arranged radially about the substantially central portion 4. The inside of the peripheral contact portion 6 is divided into a plurality of sections 8 by the fused portion 7.
[0026]
The fused portion 7 is not formed in the substantially central portion 4, and therefore, the substantially central portion 4 and each section 8 of the peripheral contact portion 6 are in communication with each other. Moreover, the outer peripheral side edge part of the melt | fusion part 7 is made discontinuous at intervals with the outer periphery part 9 of a bag body, and each division 8 is a communication state also in the outer periphery part 9 vicinity.
[0027]
A notch 10 is formed in the center of each short side of the bag body 2, and the peripheral abutment 6 is divided into an upper peripheral abutment 6 a and a lower peripheral abutment 6 b by the two notches 10, 10. It is divided into
[0028]
Further, two fixed belts 3 are fixed to one short side of the bag body 2 with a notch 10 interposed therebetween. A female surface fastener 3b is formed on the entire surface of the fixed belt 3, and a male surface fastener 3a is formed on the tip of the back surface.
[0029]
FIG. 2 is a plan view of the bag body showing a state before enclosing the cold and heat insulating agent. In addition, the arrow in a figure has shown the flow of the cold insulating / heat insulating agent inject | poured into the bag body 2. FIG. As shown in the figure, an injection port 11 for injecting a cold and heat insulating agent is formed in the central portion of one long side of the bag body. When the cold / heat insulating agent is injected from the inlet 11, a part of the cold / heat insulating agent is sent to the substantially central portion 4 through the compartments 8 a and 8 b close to the inlet 11 and then filled into the other compartment 8. The remainder is filled in each section 8 through a discontinuous portion near the outer peripheral edge 9.
[0030]
In this way, since each of the compartments 8 is filled with the cold / heat insulating agent from a plurality of paths, even a highly viscous gel can be filled in a short time and smoothly. After the filling of the cold insulation / heat insulation agent is completed, heat sealing is performed at a portion indicated by a broken line D, and at the same time, the injection port 11 is cut to produce the cold insulation / heat insulation pad 1.
[0031]
FIG. 3 is a diagram illustrating a use state of the cold / heat insulating pad configured as described above. In the figure, a state in which the cold / warm pad 1 is attached to the knee is shown. As a procedure for mounting the pad 1, first, the through hole 5 of the cold / warm pad 1 is put on the kneecap A, the upper peripheral contact portion 6a is brought into close contact with the thigh B side, and the lower peripheral contact portion 6b is calf C. Adhere to the side.
[0032]
Next, the male belt fastener formed at the front end of the back surface of the belt is wound around the fixing belt 3 fixed to the upper peripheral contact portion 6a side from the rear side of the crotch B so as to cover the pad surface, and is wound once. 3a is locked to a female surface fastener 3b formed on the belt surface. Similarly, the fixing belt 3 fixed to the lower peripheral contact portion 6b side is wound around the calf C and fixed.
[0033]
Since the cold / warm pad 1 attached in this manner is in close contact with the entire knee, good cooling or warming is possible.
[0034]
【Effect of the invention】
As is apparent from the above description, according to the present invention, the bag body includes a substantially central portion located at the corner portion of the human body and a peripheral abutting portion comprising a peripheral abutting portion that abuts the peripheral portion. A fusion part is formed to divide the compartment into a plurality of compartments, and each compartment is in a communicating state, so that it is possible to obtain a cold insulation / heat insulation pad with improved flexibility and excellent adhesion, and at the time of filling with a cold insulation / heat insulation agent It is possible to fill the inside of the bag with the cooling agent only by forming one inlet for the cooling agent in the bag.
[0035]
If the fusion part is arranged radially about the substantially central part, the flexibility at the peripheral abutting part can be further improved as compared with the case where the fusion part is formed in another shape.
[0036]
Moreover, if a through-hole is formed in the substantially center part, the adhesiveness to the corner part of a cold insulation / heat insulation pad can be improved.
[0037]
In addition, if a cutout portion having at least two or more divided bodies as the peripheral abutting portion is formed, it is possible to obtain a cold insulation / heat insulation pad that is in close contact with the peripheral portion and has high cooling efficiency.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of a cold insulation / heat insulation pad according to the present invention. FIG. 2 is a plan view showing a state of a bag body before being filled with a cold insulation / heat insulation agent. Figure showing the pad usage status [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cooling / warming pad 2 Bag body 3 Fixing band 4 Approximate center part 5 Through-hole 6 Peripheral contact part 7 Fusion part 8 Section 9 Outer peripheral edge part 10 Notch part 11 Inlet

Claims (4)

It consists of a plastic bag body having flexibility and a cold and heat insulating agent enclosed in the bag body, and the bag body is a corner portion such as an outer surface of a joint, such as a shoulder, an elbow, or a knee, or an outer surface of a hip. And a peripheral abutting portion that abuts on a peripheral portion of the corner portion, a through hole is formed in the substantially central portion, and the inside of the peripheral abutting portion is divided into a plurality of sections. A plurality of fusion parts are radially formed around the substantially central part , and the fusion part is formed such that both ends thereof do not reach either the substantially central part or the bag peripheral part, cold-insulation pad compartments adjacent to each other, characterized in that it is a communicating state through the substantially central portion and the bag periphery. Cold-insulation pad according to claim 1, wherein a notch which at least two or more divided body said peripheral contact portion formed in the peripheral abutment leaving the substantially central portion. The cooling pad according to claim 2, wherein the notch is formed on the same line on the left and right sides of a substantially central portion. The cooling pad according to any one of claims 1 to 3 , further comprising a fixing band for winding and fixing the peripheral contact portion of the bag body around the human body.

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