JP6189228B2 - Scalp cooling device - Google Patents

Description

  The present invention relates to a scalp cooling device for cooling the scalp.

  Chemotherapy used in cancer treatment often involves hair loss, and it is a problem that the QOL is significantly reduced, such as psychological distress of patients. It is known that such hair loss can be prevented or suppressed by maintaining the scalp at a low temperature and suppressing the hair root from absorbing a therapeutic agent for chemotherapy. For this reason, a scalp cooling device aimed at preventing hair loss due to chemotherapy has been proposed (see Patent Document 1 and the like). The scalp cooling device disclosed in Patent Document 1 includes a head cover in which a flow path having an outlet at the top and an inlet at the edge is formed, and the flow path of the head cover extends from the edge to the top. It is constituted by a plurality of section chambers divided and defined by a line extending toward.

Japanese Patent No. 4157603

  In the scalp cooling device, it is important to cool the scalp evenly. For this reason, in the scalp cooling device described in Patent Document 1, an inlet for supplying a cooling liquid to each of the plurality of section chambers of the flow path is provided, and the cooling liquid is supplied from an inlet at an edge of each section chamber. Then, after flowing in the section chamber, it is collected and discharged at an outlet provided at the top. However, if the head cover is provided with a plurality of inlets, a plurality of pipes for supplying the coolant to the inlets are connected to the head cover, and the load on the head increases, There arises a problem that it becomes complicated and obstructs the mounting of the head cover on the head.

  On the other hand, the coolant is warmed by the patient's body temperature while flowing through the flow path, and the temperature of the coolant increases as it approaches the outlet of the flow path. Therefore, in order to reduce the number of pipes connected to the head cover, a flow path that extends to the entire head cover by providing only one inlet for supplying the coolant and one outlet for discharging the coolant to the fixed head cover. The length of the flow path from the inlet to the outlet becomes longer, and the difference in temperature of the coolant between the portion near the outlet of the flow channel and the portion near the inlet becomes large, and temperature non-uniformity is likely to occur. Problems arise.

  Accordingly, an object of the present invention is to solve the problems in the prior art and reduce the temperature difference due to the region in the cooling cap even when the cooling medium flow path in the cooling cap is long.

  In view of the above object, the present invention is a scalp cooling device for cooling the user's scalp, which is formed inside the cooling cap, a cooling cap for mounting on the user's head, A cooling medium flow path extending between the first cooling medium port and the second cooling medium port, a cooling medium cooling device for cooling the cooling medium, and the cooling medium cooled by the cooling medium cooling device as the first cooling medium. The cooling medium port that selectively supplies one of the cooling medium port and the second cooling medium port and flows through the cooling medium flow path from the other of the first cooling medium port and the second cooling medium port. A cooling medium flow direction reversing mechanism for discharging, and a control device for controlling the operation of the cooling medium flow direction switching mechanism, wherein the control device uses the cooling medium flow direction reversing mechanism to move the cooling medium in the cooling cap. Providing in that scalp cooling device making it possible to reverse the flow direction of the cooling medium flowing through the 却媒 fluid flow passage.

  In the scalp cooling device, the cooling medium is supplied to one of the first cooling medium port and the second cooling medium port, and the cooling medium is discharged from the other of the first cooling medium port and the second cooling medium port. The cooling medium is circulated through the cooling medium flow path extending between the first cooling medium port and the second cooling medium port. In such a structure, when the cooling medium always flows in the same direction through the cooling medium flow path extending between the first cooling medium port and the second cooling medium port, the cooling medium flows through the cooling medium flow path of the cooling cap. The temperature of the cooling medium is increased by the heat exchange with the scalp, and the temperature of the cooling medium increases from the port on the side supplying the cooling medium to the port on the side discharging the cooling medium. In the scalp cooling device, the control device selectively switches between a port to which the cooling medium is supplied and a port to which the cooling medium is discharged by the cooling medium flow direction reversing mechanism, so that the cooling medium flowing through the cooling medium flow path is changed. Since the flow direction can be reversed, it is possible to avoid a state in which the temperature of the cooling medium is always higher on one side of the first cooling medium port and the second cooling medium port than on the other side.

  In one embodiment, the cooling medium flow direction reversing mechanism includes a first flow for selectively communicating one of the first cooling medium port and the second cooling medium port with the cooling medium supply channel. And a second flow path switch that selectively communicates one of the first cooling medium port and the second cooling medium port with the cooling medium recovery flow path, and the control device. Communicates the cooling medium supply flow path and the first cooling medium port in the first flow path switching device, and the cooling medium recovery flow path and the second cooling medium in the second flow path switching device. By communicating with the medium port, the cooling medium supplied from the cooling medium supply flow path is circulated from the first cooling medium port to the cooling medium flow path and is discharged from the second cooling medium port. In the first flow path switch Communicating the cooling medium supply flow path with the second cooling medium port and communicating the cooling medium recovery flow path with the first cooling medium port in the second flow path switching device, Control is performed so that the cooling medium supplied from the cooling medium supply flow path flows from the second cooling medium port to the cooling medium flow path and is discharged from the first cooling medium port.

  In the scalp cooling device, the cooling cap is provided with a temperature sensor, and the control device supplies a cooling medium to the first cooling medium port based on the temperature measured by the temperature sensor. Thus, the state of discharging from the second cooling medium port and the state of supplying the cooling medium to the second cooling medium port and discharging from the first cooling medium port can be switched. Further, the control device supplies a cooling medium to the first cooling medium port at a predetermined time interval and discharges the cooling medium from the second cooling medium port, and the cooling medium is supplied to the second cooling medium. The state of supplying to the port and discharging from the first cooling medium port may be switched.

  Further, in the scalp cooling device, the first cooling medium port and the second cooling medium port are connected by a single cooling medium flow path, and the cooling medium flow path is connected to the front of the cooling cap. A frontal portion formed in the region and connected to the first cooling medium port; a occipital portion formed in the occipital region of the cooling cap and connected to the second cooling medium port; the frontal region and the It is preferable to include an intermediate portion formed in an intermediate region located between the occipital region and connecting the frontal portion and the occipital portion.

  The cooling medium can be a liquid or a gas.

  According to the scalp cooling device of the present invention, it is possible to avoid that the temperature of the cooling medium is always higher than the other side on one side of the first cooling medium port and the second cooling medium port. In order to reduce a temperature difference generated between the first cooling medium port side of the cooling cap and the second cooling medium port side of the cooling cap, and thus simplify the piping structure connected to the cooling cap. For purposes such as the above, even when the cooling medium flow path is lengthened, it is possible to equalize the temperature distribution.

It is a block diagram which shows the whole structure of the scalp cooling device by this invention. It is a partially broken perspective view which shows one Embodiment of the cooling cap of a scalp cooling device. It is a schematic diagram which shows an example of the structural pattern of the cooling medium flow path formed in the cooling cap shown by FIG. FIG. 3 is an exploded perspective view illustrating an example of a usage pattern of the cooling cap illustrated in FIG. 2. It is explanatory drawing which showed the cooling cap in the cross section for description of the internal structure of a cooling cap. It is a piping diagram which shows an example of a structure of the cooling medium flow direction switching mechanism of a scalp cooling device. It is a piping diagram which shows the other example of a structure of the cooling medium flow direction switching mechanism of a scalp cooling device.

Hereinafter, embodiments of a scalp cooling device according to the present invention will be described with reference to the drawings.
Initially, the whole structure of the scalp cooling device 11 is demonstrated with reference to FIGS.

  The scalp cooling device 11 includes a cooling medium tank 13, a cooler 15, a pump 17, a cooling cap 19, a cooling medium flow direction switching mechanism 21, a control device 23, and an operation panel 25. The scalp of the user wearing the cooling cap 21 is cooled by supplying a cooling medium from 13 to the cooling cap 19. As the cooling medium, it is preferable to use a liquid (cooling liquid), but it is also possible to use a gas (cooling gas) such as air.

  A cooling medium is stored in the cooling medium tank 13. The cooling medium tank 13 has a capacity capable of storing an amount of the cooling medium that can sufficiently suppress an increase in the temperature of the cooling medium stored inside even if the cooling medium whose temperature has increased flows from the outside. doing. A cooling device 15 is connected to the cooling medium tank 13, and when the scalp cooling device 11 is powered by the operation panel 25, the cooling medium stored in the cooling medium tank 13 is cooled by the cooling device 15. Is done. That is, the cooling medium tank 13 and the cooler 15 constitute a cooling medium cooling device. Based on the temperature of the cooling medium measured by the tank temperature sensor 27, the control device 23 arranges the tank temperature sensor 27 in the cooling medium tank 13 so that the cooling medium becomes the temperature set by the operation panel 25. It is preferable to control the operation of the cooler 15. In this case, for example, the control device 23 obtains the upper limit temperature and the lower limit temperature based on the temperature set by the operation panel 25, operates the cooler 15 when the upper limit temperature is exceeded, and turns off the cooler 15 when the temperature falls below the lower limit temperature. What is necessary is just to control the operation | movement of the cooler 15 so that it may stop. As the cooler 15, for example, a heat pump can be used. The cooling medium in the cooling medium tank 13 cooled by the cooler 15 is supplied to the cooling cap 19 using the pump 17 controlled by the control device 23, circulates through the cooling cap 19, and then is discharged from the cooling cap 19. And recovered in the cooling medium tank 13.

  The cooling cap 19 has a helmet shape as shown in FIG. 2 so as to be easily mounted on the user's head. The cooling cap 19 is provided with a first cooling medium port 31 and a second cooling medium port 33, and pipes 35 and 37 for supplying and discharging the cooling medium are connected to these ports 31 and 33, respectively. Is done. In FIG. 2, the front side of the cooling cap 19 in FIG. 2 is the front side at the time of mounting, and the first cooling medium port is set so that the pipes 35 and 37 do not hinder the mounting operation and the visibility at the time of mounting. 31 and the second cooling medium port 33 are provided on the rear side of the cooling cap 19. However, the first cooling medium port 31 and the second cooling medium port 33 may be provided on the front side or the side portion of the cooling cap 19.

  A cooling medium flow path 39 extending between the first cooling medium port 31 and the second cooling medium port 33 is formed in the cooling cap 19, and the cooling medium supplied to the cooling cap 19 is the cooling medium. The inside of the flow path 39 can be circulated. As the cooling medium flows through the cooling medium flow path 39, the cooling cap 19 is cooled, and the user's scalp is cooled by heat exchange with the user's scalp wearing the cooling cap 19. If the first cooling medium port 31 and the second cooling medium port 33 are communicated by the cooling medium flow path 39, the cooling medium flow path 39 may include a branch flow path in the middle. It may be configured by a single flow path without branching. It is also possible to provide the cooling cap 19 with a plurality of sets of first cooling medium ports and second cooling medium ports, and to form cooling medium flow paths between the respective sets. However, it is preferable to provide only one set of the first cooling medium port 31 and the second cooling medium port 33 in the cooling cap 19 and form the cooling medium flow path 39 therebetween. This is because if the cooling cap 19 is provided with only one set of the first cooling medium port 31 and the second cooling medium port 33, two pipes connected to the cooling cap 19 (that is, supply the cooling medium). Therefore, it is possible to reduce the weight of the cooling cap 19 and reduce the weight of the user when the cooling cap 19 is mounted. This is because the load can be reduced.

  FIG. 3 shows an example of the pattern of the coolant flow path 39 formed in the cooling cap 19. The cooling medium flow path 39 includes a frontal portion 41 formed in the frontal region of the cooling cap 19, a occipital portion 43 formed in the occipital region of the cooling cap, and an intermediate region located between the frontal region and the occipital region, That is, it is comprised by the intermediate part 45 formed in a parietal area | region. Note that the terms “frontal region”, “occipital region”, and “intermediate region” used in the description of the cooling cap 19 are used corresponding to each region of the head when the cooling cap 19 is attached to the head. ing. Since hair loss is likely to occur at the top of the head, and cooling is effective to focus on the top of the head, as shown in FIG. 3, the hair loss is intermediate between the frontal region and the occipital region of the cooling cap 19. It is preferable to form the cooling medium flow path 39 densely in the region.

  Note that the pattern of the coolant flow path 39 shown in FIG. 3 is merely an example, and the pattern of the coolant flow path 39 is not limited to that shown in FIG. For example, the first cooling medium port 31 and the second cooling medium port 33 are arranged in the occipital region of the cooling cap 19, but may be provided in the frontal region or the intermediate region. Further, in the pattern of the cooling medium flow path 39 shown in FIG. 3, a pair of the first cooling medium port 31 and the second cooling medium port 33 are connected by a single cooling medium flow path 39 without branching. However, the two ports 31 and 33 may be connected to each other by a cooling medium flow path including a branch flow path, and a plurality of sets of the first cooling medium port 31 and the second cooling medium may be connected. A port 33 may be provided, and the cooling medium flow path 39 may extend between the first cooling medium port and the second cooling medium port of each set.

  FIG. 4 shows an example of how the cooling cap 19 is used. An outer cap 49 disposed outside the cooling cap 19 is disposed, and an inner cap 51 is disposed inside the cooling cap 19. The outer cap 49 is made of a heat insulating material such as urethane, and can prevent the temperature of the cooling medium in the cooling cap 19 from rising due to the influence of the outside air temperature. In addition, the cooling cap 19 is urged toward the scalp to bring the cooling cap 19 into close contact with the head, thereby improving the cooling effect. The inner cap 51 fills the gap between the cooling cap 19 and the scalp, and has the effect of increasing thermal conductivity. The inner cap 51 is preferably formed of a flexible material such as sponge-like material or fiber for the purpose of facilitating adaptation to the shape of the user's head. Further, since the inner cap 51 is a portion that directly contacts the user's head, it can be attached to and detached from the cooling cap 19 from the viewpoint of hygiene in order to allow replacement and cleaning. It is preferable. The outer cap 49 and the inner cap 51 are not essential components and can be omitted.

  As shown in FIG. 5, the cooling cap 19 includes an outer shell 19a and an inner shell 19b. A groove 19c having the same pattern as that of the cooling medium flow path 39 is formed on the inner surface of the outer shell 19a, and the outer surface of the outer shell 19a is joined to the outer surface of the inner shell 19b by an adhesive or the like. A space surrounded by the wall surface of the groove of the shell 19 a and the outer surface of the inner shell 19 b forms the cooling medium flow path 39. The outer shell 19a and the inner shell 19b are preferably manufactured by molding a resin material such as silicone rubber.

  The cooling medium flow direction switching mechanism 21 is provided between the cooling medium tank 13 and the cooling cap 19 and functions to switch the flow direction of the cooling medium in the cooling medium flow path 39 of the cooling cap 19. Specifically, the cooling medium flow direction switching mechanism 21 uses the cooling medium supply pipe 53 for supplying the cooling medium from the cooling medium tank 13 to the cooling cap 19 by the pump 17 and the cooling medium discharged from the cooling cap 19. The cooling medium recovery pipe 55 for recovery to the tank 13 and the pipes 35 and 37 extending from the first cooling medium port 31 and the second cooling medium port 33 of the cooling cap 19 are connected. One of the first cooling medium port 31 and the second cooling medium port 33 is selectively communicated with the cooling medium supply pipe 53 and the other of the first cooling medium port 31 and the second cooling medium port 33 is recovered as the cooling medium. By communicating with the pipe 55, the first cooling medium port 31 supplies the cooling medium and discharges it from the second cooling medium port 33. So that it is possible to switch between the second coolant flow direction of discharging from the first cooling medium ports 31 by supplying a cooling medium to medium flow direction and a second coolant port 33 selectively.

6 and 7 show a configuration example of the cooling medium flow direction switching mechanism 21.
In the first configuration example shown in FIG. 6, the cooling medium flow direction switching mechanism 21 is realized by two flow path switches 57 and 59. The flow path switching unit 57 is connected to the cooling medium supply pipe 53, the pipe 35 communicating with the first cooling medium port 31, and the pipe 37 communicating with the second cooling medium port 33. Based on the command, the coolant supply pipe 53 is selectively communicated with one of the pipe 35 and the pipe 37. The flow path switching unit 59 is connected to the cooling medium recovery pipe 55, a pipe 35 communicating with the first cooling medium port 31, and a pipe 37 communicating with the second cooling medium port 33, and the control device 23. The cooling medium recovery pipe 55 is selectively communicated with one of the pipe 35 and the pipe 37 based on the command from. For example, as shown in FIG. 6, a two-way valve (open / close valve) 61 connected to the cooling medium supply pipe 53 and the pipe 35, a two-way valve connected to the cooling medium supply pipe 53 and the pipe 37. (Open / close valve) 63 constitutes a flow path switch 57 and is connected to a two-way valve (open / close valve) 65 connected to the cooling medium recovery pipe 55 and the pipe 35, the cooling medium recovery pipe 55 and the pipe 37. The two-way valve (open / close valve) 67 can constitute a flow path switching device 59. Further, the flow path switching unit 57 is configured by a three-way valve connected to the cooling medium supply pipe 53 and the pipes 35 and 37, and the flow path is switched by a three-way valve connected to the cooling medium recovery pipe 55 and the pipes 35 and 37. A container 59 may be configured.

  In the second configuration example shown in FIG. 7, the coolant flow direction switching mechanism 21 is realized by the four-way valve 69. The four-way valve 69 is connected to the cooling medium supply pipe 53, the cooling medium recovery pipe 55, the pipe 35, and the pipe 37, and based on a command from the control device 23, the cooling medium supply pipe 53 and the cooling medium recovery pipe 55 are connected. One of the pipe 35 and one of the pipes 37 is selectively communicated, and at the same time the remaining two are communicated.

  As will be described later, the cooling cap 19 may be provided with a cap temperature sensor 29 in order to control the operation of the cooling medium flow direction switching mechanism 21 based on the temperature of the cooling cap 19. In this case, it is preferable to provide a plurality of cap temperature sensors 29 on the cooling cap 19, and it is more preferable to provide the cap temperature sensors 29 on the front and back heads of the cooling cap 19. As the cap temperature sensor 29, a platinum temperature sensor, an infrared temperature sensor, or the like can be used. Further, since the scalp temperature rises due to the rise in the temperature of the cooling cap 19 and the blood flow volume of the scalp increases, the blood flow volume of the scalp is measured because there is a correlation between the scalp temperature and the blood flow volume of the scalp. It is also possible to use a blood flow rate sensor that can be used as the cap temperature sensor 29.

  Next, the scalp cooling device 11 adopting the cooling medium flow direction switching mechanism 21 constituted by the four two-way valves 61, 63, 65, 67 shown in FIG. The operation will be described.

  When the scalp cooling device 11 is turned on by the operation panel 25, the cooling medium stored in the cooling medium tank 13 is cooled by the cooler 15. At this time, the control device 23 sets the lower limit temperature (set temperature−allowable value) and the upper limit temperature (set) based on the temperature and allowable value set by the operation panel 25, for example, so that the cooling medium is within a predetermined temperature range. Temperature + allowable value), and when the temperature of the cooling medium measured by the tank temperature sensor 27 exceeds the upper limit temperature, the cooler 15 is activated, and the temperature of the cooling medium measured by the tank temperature sensor 27 falls below the lower limit temperature. The operation of the cooler 15 is controlled so as to stop the cooler 15. Of course, the upper limit temperature and the lower limit temperature may be set directly by the operation panel 25. When a cooling start instruction is input using the operation panel 25 after the temperature of the cooling medium in the cooling medium tank 13 falls within a predetermined range, the pump 17 is activated and supply of the cooling medium to the cooling cap 19 is started. Is done. On the other hand, when cooling is stopped, a cooling stop instruction is input using the operation panel 25 to stop the pump 17.

  When the pump 17 is operated, the cooling medium in the cooling medium tank 13 is supplied to the cooling cap 19 through the cooling medium supply pipe 53 and the cooling medium flow direction switching mechanism 21, and after flowing through the cooling medium flow path 39, 19 and is recovered in the cooling medium tank 13 through the cooling medium flow direction switching mechanism 21 and the cooling medium recovery pipe 55. The control device 23 controls the operation of the cooling medium flow direction switching mechanism 21 so that one of the pipe 35 connected to the first cooling medium port 31 and the second cooling medium port 33 communicates with the cooling medium supply pipe 53. And the other is communicated with the cooling medium recovery pipe 55 to selectively switch the flow direction of the cooling medium in the cooling medium flow path 39, that is, the cooling medium flows from the first cooling medium port 31 to the cooling medium flow path 39. Direction in which the cooling medium is supplied to the second cooling medium port 33 and discharged from the second cooling medium port 33 and the flow direction in which the cooling medium is supplied from the second cooling medium port 33 to the cooling medium flow path 39 and discharged from the first cooling medium port 31 Can be selectively switched. For example, when the coolant flow direction switching mechanism 21 is realized by the configuration shown in FIG. 6, the control device 23 opens the two-way valve 61 and closes the two-way valve 63 and closes the two-way valve 65 and two-way. By opening the valve 67, the cooling medium supply pipe 53 can be communicated with the pipe 35, and the cooling medium recovery pipe 55 can be communicated with the pipe 37. Conversely, the control device 23 closes the two-way valve 61 and opens the two-way valve 63 and opens the two-way valve 65 and closes the two-way valve 67, thereby causing the cooling medium supply pipe 53 to communicate with the pipe 37. The cooling medium recovery pipe 55 can be communicated with the pipe 35.

  Switching of the flow direction of the cooling medium in the cooling medium flow path 39 by the cooling medium flow direction switching mechanism 21 may be performed at a time interval (for example, in seconds) set through the operation panel 25, and is provided in the cooling cap 19. It may be performed based on the temperature measured by the cap temperature sensor 29 provided. In the latter case, for example, a lower limit temperature (set temperature−allowable value) and an upper limit temperature (set temperature + allowable value) are determined based on the temperature and allowable value set using the operation panel 25, and measured by the cap temperature sensor 29. The flow direction of the cooling medium in the cooling medium flow path 39 may be switched when the temperature of the cooling medium is lower than the lower limit temperature and higher than the upper limit temperature. The upper limit temperature and the lower limit temperature may be set directly using the operation panel 25.

  As described above, in the scalp cooling device 11, the cooling medium flow direction switching mechanism 21 selectively switches the flow direction of the cooling medium in the cooling medium flow path 39, so that the first cooling medium port 31 and the second cooling medium are switched. One of the ports 33 is not fixed to the supply side and the other is the discharge side. Therefore, in the cooling cap 19, it is possible to avoid that the vicinity of one of the first cooling medium port 31 and the second cooling medium port 33 is always at a higher temperature than the other vicinity. The temperature difference between the vicinity of the first cooling medium port 31 and the vicinity of the second cooling medium port 33 can be reduced, and the temperature distribution can be equalized. As a result, the entire scalp can be cooled more uniformly.

  The scalp cooling device 11 of the present invention has been described above with reference to the illustrated embodiment. However, the scalp cooling device 11 of the present invention is not limited to the illustrated embodiment. For example, in the illustrated embodiment, the cooling medium flow direction switching mechanism 21 is realized by the four two-way valves 61, 63, 65, 67 and one four-way valve 69. Selectively communicates one of the first cooling medium port 31 and the second cooling medium port 33 to the cooling medium supply pipe 53 and connects the other of the first cooling medium port 31 and the second cooling medium port 33 to each other. As long as it can be communicated with the cooling medium recovery pipe 55, it may be realized by a combination of other fluid elements. Further, air (air) may be supplied to the cooling cap 19 separately from the cooling medium, and the air cooled by the cooling medium may be blown from the cooling cap 19 toward the scalp.

DESCRIPTION OF SYMBOLS 11 Scalp cooling device 19 Cooling cap 21 Cooling medium flow direction switching mechanism 23 Control apparatus 29 Cap temperature sensor 31 1st cooling medium port 33 2nd cooling medium port 39 Cooling medium supply pipe 53 Cooling medium supply pipe 55 Cooling medium collection pipe 55 57 channel selector 59 channel selector

Claims (6)

A scalp cooling device for cooling a user's scalp,
A cooling cap for mounting on the user's head;
A cooling medium passage formed inside the cooling cap and extending between the first cooling medium port and the second cooling medium port;
A cooling medium cooling device for cooling the cooling medium;
The cooling medium cooled by the cooling medium cooling device is selectively supplied to one of the first cooling medium port and the second cooling medium port, and the cooling medium flowing through the cooling medium flow path is the first. A cooling medium flow direction switching mechanism for discharging from the other of the cooling medium port and the second cooling medium port;
A control device for controlling the operation of the cooling medium flow direction switching mechanism;
With
The control device can reverse the flow direction of the cooling medium flowing through the cooling medium flow path in the cooling cap by the cooling medium flow direction switching mechanism ;
The cooling medium flow path is formed so that an intermediate region located between the frontal region and the occipital region is denser than each of the frontal region and the occipital region of the cooling cap. Scalp cooling device.   The cooling medium flow direction switching mechanism includes a cooling medium supply flow path, a first flow path switch that selectively communicates with any one of the first cooling medium port and the second cooling medium port, A second flow path switch that selectively communicates the medium recovery flow path with any one of the first cooling medium port and the second cooling medium port; In the flow path switching device, the cooling medium supply flow path and the first cooling medium port are communicated, and in the second flow path switching device, the cooling medium recovery flow path and the second cooling medium port are communicated. As a result, the cooling medium supplied from the cooling medium supply flow path is circulated from the first cooling medium port to the cooling medium flow path and discharged from the second cooling medium port, and the first flow In the path switch, the cooling medium supply By connecting the flow path and the second cooling medium port, and by connecting the cooling medium recovery flow path and the first cooling medium port in the second flow path switching unit, the cooling medium supply flow The scalp cooling device according to claim 1, wherein the cooling medium supplied from a passage is controlled to flow from the second cooling medium port to the cooling medium flow path and to be discharged from the first cooling medium port.   The cooling cap is provided with a temperature sensor, and the control device supplies the cooling medium to the first cooling medium port based on the temperature measured by the temperature sensor, and the second cooling medium port. 3. The scalp cooling device according to claim 1, wherein the scalp cooling device is switched between a state of discharging from the first cooling medium port and a state of supplying the cooling medium to the second cooling medium port and discharging the cooling medium from the first cooling medium port.   The control device supplies a cooling medium to the first cooling medium port at a predetermined time interval and discharges the cooling medium from the second cooling medium port, and the cooling medium to the second cooling medium port. The scalp cooling device according to claim 1, wherein the scalp cooling device is switched between a state of being supplied and discharged from the first cooling medium port.   The first cooling medium port and the second cooling medium port are connected by a single cooling medium flow path, the cooling medium flow path being formed in the frontal region of the cooling cap and the first cooling medium flow path. A frontal portion connected to one cooling medium port; a occipital portion formed in a occipital region of the cooling cap and connected to a second cooling medium port; and located between the frontal region and the occipital region The scalp cooling device according to any one of claims 1 to 4, further comprising an intermediate portion formed in an intermediate region and connecting between the frontal portion and the occipital portion.   The scalp cooling device according to any one of claims 1 to 5, wherein the cooling medium is a liquid or a gas.

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