Cooling tool and treatment tool used in cryotherapy
AssigneeSharp Kabushiki Kaisha
InventorsDaisuke Shinozaki, Yuka Utsumi, Satoru Motonami
Life of this patent
Estimating the term…
Abstract
A human body is cooled at an appropriate temperature, and a sufficient usage time is ensured. A cooling tool according to one aspect of the present invention is a cooling tool for cooling a human body, including a freezing material 30a that undergoes a phase change at a particular temperature and a first container containing the freezing material 30a. The first container transfers heat between the human body and the freezing material at a contact surface in contact with the skin of the human body. At least the contact surface has a thermal effusivity within the possible range of thermal effusivity of the skin of the human body. The contact surface may have a thermal effusivity (J/(m2˜S1/2·K)) of 1,000 to 2,000.
Claims6
A cooling tool for cooling a human body, comprising:
- a freezing material that undergoes a phase change at a particular temperature;
- and
- a first container containing the freezing material,
- wherein the first container transfers heat between the human body and the freezing material at a contact surface in contact with a skin of the human body,
- at least the contact surface has a thermal effusivity within a range of thermal effusivity of the skin of the human body, and
- the cooling tool satisfies the following equation:
- T
- boder
- =
- T
- skin
- +
- T
- TSM
- 2
- ,
- where TTSM is a temperature of the freezing material, Tskinis a surface temperature of the skin of the human body, and Tboderis a temperature of the contact surface.
A cooling tool for cooling a human body, comprising:
- a freezing material that undergoes a phase change at a particular temperature;
- a first container containing the freezing material and forming a cold storage layer;
- a non-freezing material that is flexible at the phase change temperature of the freezing material;
- and
- a second container containing the non-freezing material, comprising a flexible material, and forming a buffer layer,
- wherein the second container transfers heat between the human body and the non-freezing material at a contact surface in contact with a skin of the human body,
- at least the contact surface has a thermal effusivity within a range of thermal effusivity of the skin of the human body, and
- the cooling tool satisfies the following equation:
- T
- boder
- =
- T
- skin
- +
- T
- 2
- ,
- where T is a temperature of the buffer layer, Tskinis a surface temperature of the skin of the human body, and Tboderr is a temperature of the contact surface.
Dependencies are inferred from the claim text.