JP2016159120A - Thermoregulation pad and thermoregulation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thermoregulation pad capable of adjusting temperature of a human body more efficiently, and a thermoregulation apparatus having the same.SOLUTION: A thermoregulation pad comprises a pad body 2, an introduction pipe, and a discharge pipe. A flow channel 20 provided inside the pad body 2 is a single spiral flow channel that is not branched from an inflow port 21 through which a heat exchange fluid flows in, to an outflow port 22 through which the heat exchange fluid flows out. The inflow port 21 of the flow channel 20 is provided at an outer peripheral side of spiral, and the outflow port 22 is provided at a central side of the spiral. The introduction pipe is connected to the inflow port 21 of the pad body 2 to introduce the heat exchange fluid into the flow channel. The discharge pipe is connected to the outflow port 22 to discharge the heat exchange fluid flowing out from the outflow port 22.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a body temperature regulation pad and a body temperature regulation device for regulating body temperature by contacting with a human body.

  In recent years, cerebral cryotherapy that protects the brain by lowering body temperature has been established for patients with cerebral infarction, cerebral hemorrhage, cardiopulmonary arrest resuscitation, and head injury due to a traffic accident or the like.

  There are mainly two types of brain cryotherapy depending on how the body temperature is lowered. There are a surface cooling method for lowering the body temperature by attaching a coolant or the like to the surface of the human body and a deep cooling method for cooling the blood directly with a cooling device to lower the body temperature.

  The deep cooling method has an advantage that the body temperature can be lowered quickly. However, since the blood is directly cooled, it is necessary to surgically insert the device into the body, and it takes time to introduce the device. Since it is said that the effect of cerebral cryotherapy cannot be sufficiently obtained unless treatment is started at an early stage of injury, a surface cooling method that is easy to prepare is effective.

  In addition, it is necessary to select various methods for cerebral cryotherapy depending on how much the body temperature is lowered according to the patient's condition, how many hours the body temperature is maintained, and the like. When the body temperature is lowered by using a coolant or ice water in the surface cooling method, it is difficult to control the body temperature so that the body temperature is lowered to the target body temperature or maintained at a constant body temperature.

  In such a case, it is preferable to use a medical pad that allows the heat exchange fluid to flow inside, and by appropriately setting the temperature of the heat exchange fluid to a temperature lower than the body temperature, the temperature is lowered to the target body temperature. Or can be maintained at a constant body temperature. The heat exchange structure described in Patent Document 1 and the pad described in Patent Document 2 are examples of medical pads.

  In addition, for diseases such as hypothermia, it is effective as a treatment method to raise the body temperature by heating rather than cooling. In this case, the heat exchange fluid is set higher than the body temperature and used for medical purposes. Just flow into the pad.

JP 2004-202166 A JP 2013-535295 A

  In brain hypothermia, the body temperature is lowered to the target temperature early in the initial stage of treatment, the body temperature is maintained at a constant temperature in the middle stage, and the temperature is restored in the final stage. In the cooling pads described in Patent Document 1 and Patent Document 2, for example, since the flow path of the heat exchange fluid is branched, the flow velocity of the fluid is reduced downstream of the flow path in the pad, and the flow path entrance. And the outlet are both in the center of the pad, and the surface temperature of the pad is not uniform, resulting in poor heat exchange efficiency. Such a problem is not limited to cooling, but also occurs in the case of heating in which a heat exchange fluid having a temperature higher than the body temperature is passed through the pad in order to increase the body temperature.

  An object of the present invention is to provide a body temperature regulation pad capable of more efficiently regulating the body temperature of a human body, and a body temperature regulation apparatus including the same.

The present invention is a body temperature adjustment pad for adjusting body temperature by contacting the human body,
A pad main body to be brought into contact with a human body, and having a flow path having an inflow port through which heat exchange fluid flows in and an outflow port through which heat exchange fluid flows out, the flow path from the inflow port to the outflow port A single spiral flow path that does not branch to the pad body, wherein the inlet is provided on the outer peripheral side, and the outlet is provided on the center side;
An inlet pipe connected to the inlet for introducing the heat exchange fluid into the flow path;
A body temperature adjusting pad comprising: a discharge pipe connected to the outlet and for discharging the heat exchange fluid flowing out of the outlet.

In the present invention, the pad body is
A plate-shaped housing;
A single tubular member housed in the housing and wound in a spiral shape, the tubular member forming the flow path.

In the present invention, the pad body is
A heat conductive material filled in a gap between the outer surface of the tubular member and the inner surface of the casing is provided.

In the present invention, the pad body is
A plate-shaped housing;
A partition wall that spirally partitions the space in the housing, and a flow path for flowing the heat exchange fluid is formed by a space surrounded by the inner surface of the housing and the surface of the partition wall. It is characterized by.

In addition, the present invention provides the above body temperature adjustment pad,
A circulation means having a circulation flow path connecting the introduction pipe and the discharge pipe, and a feeding section for feeding the heat exchange fluid discharged from the discharge pipe toward the introduction pipe;
Fluid temperature adjusting means for adjusting the heat exchange fluid flowing in the circulation flow path to a predetermined temperature.

  According to the present invention, there is provided a body temperature adjustment pad that is brought into contact with the human body to adjust the body temperature, and has a plate-like pad body provided with a flow path for flowing a heat exchange fluid therein. The flow path in the pad main body is a single spiral flow path that does not branch from the inlet into which the heat exchange fluid flows into the outlet through which the heat exchange fluid flows out, and the inlet is provided on the outer peripheral side, The outlet is provided on the center side.

  The body temperature control pad having such a pad body does not cause a decrease in the flow rate of the heat exchange fluid due to branching of the flow channel or a bent portion of the flow channel, and heat exchange at a constant flow rate from the inlet to the outlet. Since fluid can be flowed through the flow path and variation in temperature in the surface direction of the contact surface can be reduced, for example, in medical procedures that require adjustment of body temperature, such as brain cryotherapy, body temperature can be adjusted more efficiently. Can be done.

  According to the invention, the pad main body includes a plate-shaped housing, and a single tubular member that is housed in the housing and wound in a spiral shape, and the tubular member that forms the flow path includes: Therefore, the pad body can be formed with a simple configuration.

  According to the invention, the pad main body has the heat conducting member filled in the gap between the outer surface of the tubular member and the inner surface of the casing. The heat conducting member can reduce the thermal resistance from the flow path to the surface of the housing, and can improve the efficiency of heat exchange with the human body.

  According to the invention, the pad main body includes a plate-shaped housing and a partition wall that partitions the space in the housing in a spiral shape. A flow path through which the heat exchange fluid flows is formed by a space surrounded by the inner surface of the housing and the surface of the partition wall.

  Thereby, the thermal resistance from a flow path to the surface of a housing | casing can be made low, and the heat exchange efficiency with a human body can be improved.

  According to the invention, the body temperature regulation pad, the circulation channel connecting the introduction pipe and the discharge pipe, and the heat exchange fluid discharged from the discharge pipe are fed toward the introduction pipe. It is a body temperature adjustment device comprising circulation means having a feeding section and fluid temperature adjustment means for adjusting the heat exchange fluid flowing in the circulation flow path to a predetermined temperature.

  By using the above-mentioned body temperature regulation pad, this body temperature regulation apparatus can perform body temperature regulation more efficiently in a medical treatment that requires body temperature regulation, such as brain hypothermia therapy.

It is a perspective view which shows the external appearance of the pad 1 for body temperature regulation which is embodiment of this invention. It is a schematic diagram which shows the example of a cross-sectional shape when the pad main body 2 is cut | disconnected in parallel with the flow direction of a flow path. It is the fragmentary sectional view cut | disconnected by the cut surface orthogonal to the flow path of the pad main body 2 of each Example. 4 is a longitudinal sectional view of the outlet port member 30. FIG. 3 is a cross-sectional view of the outlet port member 30. FIG. It is a schematic diagram which shows the other example of cross-sectional shape when the pad main body 2 is cut | disconnected in parallel with the flow direction of a flow path. It is the schematic which shows the structure of the body temperature regulation apparatus 100 which is other embodiment of this invention.

  FIG. 1 is a perspective view showing an appearance of a body temperature adjusting pad 1 according to an embodiment of the present invention. The body temperature adjusting pad 1 includes a pad body 2, an introduction tube 3, and a discharge tube 4.

  The pad body 2 is a member formed in a flat plate shape in which a flow path for flowing a heat exchange fluid is provided. The introduction pipe 3 is connected to the inlet of the pad body 2 in order to introduce the heat exchange fluid into the flow path. The discharge pipe 4 is connected to the outlet for discharging the heat exchange fluid flowing out from the outlet.

  The body temperature adjusting pad 1 of the present embodiment has the contact surface of the pad main body 2 in contact with the skin surface of the human body and the like, and the heat exchange fluid is caused to flow through the flow path inside the pad main body 2, so The human body and the heat exchange fluid exchange heat, and the body temperature of the human body can be adjusted. If the temperature of the heat exchange fluid flowing through the flow path is lower than the body temperature, the human body can be cooled, and if the temperature flowing through the flow path is higher than the body temperature, the human body can be heated.

  FIG. 2 is a schematic diagram showing an example of a cross-sectional shape when the pad body 2 is cut in parallel with the flow direction of the flow path. The flow path 20 provided inside the pad main body 2 is a single spiral flow path that does not branch from the inlet 21 into which the heat exchange fluid flows in to the outlet 22 from which the heat exchange fluid flows out. The inlet 21 of the flow path 20 is provided on the outer peripheral side of the spiral, and the outlet 22 is provided on the central side of the spiral.

  The introduction pipe 3 is connected to the side surface of the pad main body 2, and the discharge pipe 4 is connected to the center of the main surface of the pad main body 2. The heat exchange fluid introduced by the introduction pipe 3 flows into the flow path 20 of the pad main body 2 from the inflow port 21, and the flowed heat exchange fluid moves from the outer peripheral side toward the center side along the shape of the flow path 20. Flow in the flow path 20. The heat exchange fluid that has reached the center of the spiral flow path 20 flows out of the outlet 22, passes through the discharge pipe 4, and is discharged to the outside of the body temperature adjustment pad 1.

  As described above, the flow path 20 in the pad main body 2 is a single spiral flow path without branching, so that the flow rate of the heat exchange fluid caused by the branching of the flow path or the bent portion of the flow path is reduced. The heat exchange fluid can flow through the flow path 20 at a constant flow rate from the inlet 21 to the outlet 22 without a decrease.

  Moreover, since the inflow port 21 exists in the outer peripheral side and the outflow port 22 exists in the center side, the heat exchange fluid which flows through the flow path 20 flows toward the center from the outer periphery while exchanging heat with the human body. . Thereby, the dispersion | variation in the temperature in the surface direction of a contact surface can be decreased.

  Therefore, by using the body temperature regulation pad 1 of the present embodiment, it is possible to perform body temperature regulation more efficiently in a medical treatment that requires body temperature regulation such as brain hypothermia therapy.

  In the body temperature adjusting pad 1 of the present embodiment, the cross-sectional shape of the flow path is particularly limited if the flow path 20 provided inside the pad main body 2 is a single spiral flow path without branching as described above. However, the cross-sectional shape does not change from the inflow port 21 to the outflow port 22 and is preferably a uniform shape. Examples of the shape include a circular shape including a perfect circle and an ellipse, a polygonal shape including a rectangular shape, or an indefinite shape. It may be.

  In order to further improve the efficiency of heat exchange with the human body, the pad main body 2 is preferably made of a flexible soft material so that no gap is generated between the contact surface and the human body surface. However, if the flexibility is too high, part of the flow path 20 is deformed due to the deformation of the pad body 2 and the flow rate of the heat exchange fluid flowing through the flow path 20 fluctuates. It suffices if it is flexible enough to meet the above.

  The member which comprises the pad main body 2 will not be specifically limited if it is comprised with the material from which a change of a property etc. does not arise with the heat exchange fluid which flows through the flow path 20. As the soft material having flexibility as described above, a polymer material such as soft polyvinyl chloride may be used.

  From the viewpoint of the heat exchange fluid flowing through the flow path 20, when the heat exchange fluid is water at 4 ° C. to 42 ° C., the members constituting the pad body 2 are, for example, soft polyvinyl chloride, polyethylene, polypropylene, and the like. Preferably used. If the heat exchange fluid is water containing additives such as antibacterial agents to add various functions, or antifreeze liquids such as ethylene glycol and propylene glycol, for example, soft Teflon (registered) with excellent chemical resistance Etc.) are preferably used as constituent materials.

  Next, two examples of the body temperature adjusting pad 1 of the present embodiment will be described. FIG. 3 is a partial cross-sectional view taken along a cutting plane orthogonal to the flow path of the pad body 2 of each embodiment. 3A shows a partial cross-sectional view of the first embodiment, and FIG. 3B shows a partial cross-sectional view of the second embodiment.

  In the first embodiment, the pad main body 2 includes a plate-shaped housing 23 and a tube 24 accommodated in the housing. One main surface 23a of the housing 23 is a contact surface that comes into contact with the human body (hereinafter referred to as "contact surface 23a"). The tube 24 is a single tubular member having flexibility, and is accommodated in the housing 23 in a spirally wound state. Therefore, the pipe line of the tube 24 constitutes the flow path 20 through which the heat exchange fluid flows. The opening end located on the outer peripheral side of the tube 24 wound in a spiral shape is the inflow port 21, and the opening end located on the spiral side is the outflow port 22.

  In the example shown in FIG. 3A, a circular tube having a circular cross-sectional shape is used as the tube 24. However, the present invention is not limited to this, and a rectangular tube having a rectangular cross-sectional shape or a cross-sectional shape is polygonal or non-circular. A tubular member having a fixed shape may be used.

  Moreover, the housing | casing 23 normally consists of a pair of flat plate and the side wall which connects the periphery of this pair of flat plate, and when using a circular tube as the tube 24 as shown to Fig.3 (a), a pair of flat plate 25 is used. , 26 and a gap between the outer surface of the tube 24. Since air exists in such a gap, the air in the gap becomes a thermal resistance between the heat exchange fluid flowing in the tube 24 and the contact surface 23a, and the heat exchange efficiency as the body temperature adjusting pad 1 is improved. May decrease.

  In order to reduce the thermal resistance due to the gap, it is preferable to fill the gap with the heat conducting member 27. The heat conductive member 27 to be filled may be any member that is soft and has better heat conductivity than air, and for example, silicone resin, carbon fiber composite rubber, or the like can be used.

  The gap filling the heat conducting member 27 may be a part or all of the gap between the inner surface of the pair of flat plates 25 and 26 and the outer surface of the tube 24. When a part of the gap is filled with the heat conducting member 27, the gap between the inner surface of the flat plate 25 having the contact surface 23 a with the human body and the outer surface of the tube 24 among the pair of flat plates 25, 26. Filling is preferred. The gap between the inner surface of the other flat plate 26 and the outer surface of the tube 24 is preferably not filled with the heat conducting member 27. When the gap between the inner surface of the flat plate 26 and the outer surface of the tube 24 is filled with the heat conducting member 27, the thermal resistance between the surface 26a opposite to the contact surface 23a is also reduced. For example, the heat exchange between the outside air and the heat exchange fluid flowing in the tube 24 that contacts the surface 26a is promoted.

  If the gap between the inner surface of the flat plate 26 and the outer surface of the tube 24 is not filled with the heat conducting member 27, the thermal resistance between the opposite surface 26a is the thermal resistance with the contact surface 23a. The heat exchange efficiency between the human body contacting the contact surface 23a and the heat exchange fluid flowing in the tube 24 is further improved.

  Furthermore, not only the outside air that contacts the surface 26 a that is the outer surface of the flat plate 26, but also the heat exchange between the outside air that contacts the surface 28 a that is the outer surface of the side wall 28 and the heat exchange fluid flowing in the tube 24 occurs. Such heat exchange with the outside air causes a reduction in the efficiency of heat exchange with the human body. Therefore, in order to prevent the occurrence of such unnecessary heat exchange, the surface 26a and the side wall which are the outer surfaces of the flat plate 26 are used. It is preferable to provide a heat insulating material 29 so as to cover the surface 28a which is the outer surface of 28.

  By providing the heat insulating material 29, heat exchange between the outside air and the heat exchange fluid flowing in the tube 24 is performed by the heat insulating material 29 even when there is outside air in contact with the heat insulating material 29 outside the heat insulating material 29. Therefore, heat exchange with the heat exchange fluid flowing in the tube 24 becomes heat exchange with the human body that is in contact with the contact surface 23a, which is the outer surface of the flat plate 25, and heat with the human body. The exchange efficiency is further improved.

  As the heat insulating material 29, any material can be used as long as it is a material that can be bonded or bonded to the flat plate 26 and the side wall 28 and has a heat resistance that hardly causes heat exchange with the outside air. However, for example, foamed polyethylene or urethane foam can be used.

  Here, the inflow port 21 located on the outer periphery of the pad main body 2 has the same opening direction as the flow direction of the flow path 20, but the outflow port 22 located in the center opens in a direction perpendicular to the flow direction. To do. That is, the outlet 22 opens on the surface 26 a that is the outer surface of the flat plate 26. Then, it is necessary to bend the open end portion of the tube 24 at the center of the spiral by 90 degrees. When the tube 24 is made of a material with relatively high flexibility, it can be bent 90 degrees, but when the tube 24 is made of a material with low flexibility, it is difficult to bend it.

  In the first embodiment, in the vicinity of the outlet 22, it is preferable to use an outlet port member 30 that is a separate member from the tube 24.

  4A is a longitudinal sectional view of the outlet port member 30, and FIG. 4B is a transverse sectional view of the outlet port member 30. The outlet port member 30 is connected to a port main body 32 in which a spiral flow path 31 of about one turn is provided inside, and an inlet of the flow path 31 on the outer periphery of the port main body 32, and the center side opening end of the tube 24. And a connecting portion 34 that connects the outlet of the flow path 31 and the discharge pipe 4 at the center of the upper surface of the port main body 32.

  The outlet port member 30 having such a configuration is arranged at the center of the housing 23 so that the connecting portion 34 is exposed. The heat exchange fluid flowing out from the central opening end of the tube 24 flows through the flow path 31 in the port body 32 through the connection portion 33, flows out from the outflow port, passes through the flow path in the connection portion 34, and is discharged from the discharge pipe. It flows to 4.

  By using such an outlet port member 30, the flow of the heat exchange fluid can be bent at the outlet port member 30 and allowed to flow out without bending the central opening end portion of the tube 24.

  In the second embodiment, the pad main body 2 includes a plate-shaped casing 23 and a partition wall 40 that partitions the space in the casing 23 in a spiral shape. Since the space is partitioned in a spiral shape, the partition wall 40 is provided between the inner surfaces of the pair of flat plates 25 and 26 constituting the housing 23, and the partition wall 40 itself is provided in a spiral shape. By providing the spiral partition wall 40, the space surrounded by the inner surface of the housing 23 and the surface of the partition wall 40 constitutes the flow path 20 through which the heat exchange fluid flows.

  Unlike the first embodiment, the second embodiment has no gap between the outer surface of the tube 24 and the inner surface of the housing 23 as in the first embodiment. In other words, there is no space other than the flow path 20 inside the housing 23.

  Since only the flat plate 25 is the thermal resistance between the heat exchange fluid flowing through the flow path 20 and the human body that contacts the contact surface 23a that is the outer surface of the flat plate 25, the thermal resistance is lower than that of the first embodiment. The efficiency of heat exchange with the human body is improved.

  On the other hand, in the second embodiment, as in the first embodiment, the outside air that is in contact with the surface 26 a that is the outer surface of the flat plate 26, the outside air that is in contact with the surface 28 a that is the outer surface of the side wall 28, and the heat exchange fluid flowing through the flow path 20. Heat exchange also occurs. Since only the flat plate 26 or the side wall 28 becomes the heat resistance with the outside air, the heat exchange efficiency with the outside air is also increased.

  In order to prevent the occurrence of this unnecessary heat exchange with the outside air, the heat insulating material 29 is provided so as to cover the surface 26a which is the outer surface of the flat plate 26 and the surface 28a which is the outer surface of the side wall 28 as in the first embodiment. It is preferable to provide it.

  By providing the heat insulating material 29, heat exchange between the outside air and the heat exchange fluid flowing through the flow path 20 is performed by the heat insulating material 29 even when there is outside air that contacts the heat insulating material 29 outside the heat insulating material 29. Therefore, the heat exchange with the heat exchange fluid flowing through the flow path 20 is almost the heat exchange with the human body contacting the contact surface 23a which is the outer surface of the flat plate 25, and the heat with the human body. The exchange efficiency is further improved.

  As a material of the heat insulating material 29 of the second embodiment, the same material as that of the heat insulating material 29 of the above-described first embodiment can be used.

  In addition, said Example 1 and Example 2 are examples of an Example of this invention, and this invention is not limited to the structure of Example 1 and Example 2. FIG. The flow path 20 provided inside the pad body 2 is a single spiral flow path that does not branch from the inlet 21 through which the heat exchange fluid flows into the outlet 22 through which the heat exchange fluid flows out. However, the body temperature adjusting pad 1 of the present invention may have any configuration as long as it is provided on the outer periphery side of the spiral and the outlet 22 is provided on the center side of the spiral.

  In addition, the spiral flow path in the present invention is preferably a spiral shape whose outer shape is circular as shown in the cross-sectional view of FIG. 2, for example, but is not limited thereto. FIG. 5 is a schematic view showing another example of the cross-sectional shape when the pad main body 2 is cut in parallel with the flow direction of the flow path. In the example shown in FIG. 5, the outer shape is rectangular, but the outer shape may be polygonal or indefinite.

  FIG. 6 is a schematic diagram showing a configuration of a body temperature regulation device 100 according to another embodiment of the present invention. The body temperature adjustment device 100 includes the body temperature adjustment pad 1 and the heat exchange device 50. Hereinafter, a body temperature cooling device will be described as an example of the body temperature adjusting device 100.

  The heat exchange device 50 is connected to a tank 51 for storing heat exchange fluid, for example water, a discharge pipe 4 of the body temperature adjusting pad 1, and a return pipe 52 for returning the discharged heat exchange fluid to the tank 51, a tank 51 is connected to the introduction pipe 3 of the Peltier unit 53 for cooling the heat exchange fluid stored in 51 and the body temperature adjustment pad 1, and the cooled heat exchange fluid discharged from the tank 51 is transferred to the body temperature adjustment pad 1. And a supply pipe 54 to be supplied, and a pump 55 for supplying heat exchange fluid from the tank 51 to the body temperature adjusting pad 1. The Peltier unit 53 includes a plurality of Peltier elements and a fan for cooling the Peltier elements.

  The circulation means for returning the heat exchange fluid discharged from the discharge pipe 4 to the introduction pipe 3 is constituted by a circulation flow path including a tank 51, a return pipe 52 and a supply pipe 54, and a feeding unit including a pump 55. The fluid temperature adjusting means for adjusting the heat exchange fluid flowing in the circulation flow path to a predetermined temperature is constituted by the Peltier unit 53.

  The heat exchange fluid flowing through the flow path 20 inside the body temperature adjusting pad 1 takes the heat of the human body by heat exchange with the human body and lowers the body temperature, but the temperature of the heat exchange fluid rises. The heat exchange fluid whose temperature has risen returns to the tank 51 through the return pipe 52, and the heat exchange fluid stored in the tank 51 is cooled to a predetermined temperature by the Peltier unit 53. In the example of the present embodiment, a thermometer 56 that measures the temperature of the fluid is installed in the flow path of the return pipe 52, and the temperature of the heat exchange fluid that returns to the tank 51 is monitored. An operating condition of the Peltier unit 53 is set by a control unit (not shown) according to the measurement result of the thermometer 56, and the heat exchange fluid is cooled to a predetermined temperature.

  The cooled heat exchange fluid is supplied by the pump 55 and supplied to the body temperature adjusting pad 1 through the supply pipe 54. The operating condition of the pump 55 is set based on the flow rate measured by the flow meter 57 installed in the supply pipe 54 by the control unit.

  In the above description, the Peltier unit using a Peltier element as the fluid temperature adjusting means has been described as an example. However, the present invention is not limited to this, and a heat exchanger in which a compressor, an evaporator, a condenser, and the like are combined may be used.

  An example of cerebral hypothermia is as follows. In the initial stage of treatment, the body temperature is cooled to 34 ° C. or lower within 1 hour, and in the subsequent intermediate stage (for example, about 1 to 24 hours), the body temperature is reduced from 32 ° C. to The temperature is maintained at 34 ° C., and in the final stage, cooling is stopped and the body temperature is restored.

  The body temperature regulation pad 1 and the body temperature regulation device 100 of the present embodiment are suitably used for rapid cooling in the initial stage and maintenance of hypothermia in the middle stage. Further, the temperature of the heat exchange fluid can be set to about body temperature, and can be used for reheating at the final stage.

  Moreover, the body temperature control apparatus 100 using the heat exchanger by a compressor is especially suitable for rapid cooling in an initial stage. The body temperature control device 100 using a Peltier unit is particularly suitable for maintaining a low body temperature in the middle stage, and can reduce the device scale and power consumption compared to a heat exchanger using a compressor. .

DESCRIPTION OF SYMBOLS 1 Body temperature adjustment pad 2 Pad main body 3 Introducing pipe 4 Exhausting pipe 20 Flow path 21 Inlet 22 Outlet 23 Housing 23a Contact surface 24 Tube 25 Flat plate 26 Flat plate 26a Surface 27 Heat conduction member 28 Side wall 28a Surface 29 Heat insulating material 30 Outlet Port member 31 Flow path 32 Port body 33 Connection portion 34 Connection portion 40 Partition wall 50 Heat exchange device 51 Tank 52 Return piping 53 Peltier unit 54 Supply piping 55 Pump 56 Thermometer 57 Flow meter 100 Body temperature control device

Claims (5)

A temperature adjustment pad that adjusts the body temperature by contacting the human body,
A pad main body to be brought into contact with a human body, and having a flow path having an inflow port through which heat exchange fluid flows in and an outflow port through which heat exchange fluid flows out, the flow path from the inflow port to the outflow port A single spiral flow path that does not branch to the pad body, wherein the inlet is provided on the outer peripheral side, and the outlet is provided on the center side;
An inlet pipe connected to the inlet for introducing the heat exchange fluid into the flow path;
A body temperature regulating pad comprising: a discharge pipe connected to the outlet and for discharging the heat exchange fluid flowing out of the outlet. The pad body is
A plate-shaped housing;
The body temperature regulation pad according to claim 1, further comprising: a single tubular member housed in the housing and wound in a spiral shape, the tubular member forming the flow path. The pad body is
The body temperature regulation pad according to claim 2, further comprising a heat conductive material filled in a gap between an outer surface of the tubular member and an inner surface of the housing. The pad body is
A plate-shaped housing;
A partition wall that spirally partitions the space in the housing, and a flow path for flowing the heat exchange fluid is formed by a space surrounded by the inner surface of the housing and the surface of the partition wall. The pad for body temperature regulation of Claim 1 characterized by these. The body temperature adjusting pad according to any one of claims 1 to 4,
A circulation means having a circulation flow path connecting the introduction pipe and the discharge pipe, and a feeding section for feeding the heat exchange fluid discharged from the discharge pipe toward the introduction pipe;
Fluid temperature adjusting means for adjusting the heat exchange fluid flowing in the circulation flow path to a predetermined temperature.

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