JP2011234881A - Electric moxa cautery instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric moxa cautery instrument which can transmit a hyperthermic effect not only to the surface of an affected region of the skin but also to a deep part of the body.SOLUTION: The electric moxa cautery instrument includes an electric heating element having a heating portion on the tip side and a heat retention and insulation member covering the tip side of the heating portion. The heat retention and insulation member includes a precious metal bearing material having precious metal particles made of platinum, gold or palladium whose volume average particle size is 1 to 10 nm, a base material bearing precious metal particles on the surface and made of a ceramic including silicon carbide or zirconium carbide, and an adhesion layer made of colloidal silica to be interposed between the precious metal particles and the base material.

Description

  The present invention relates to an electric ablation device, which is used when a patient performs an ablation therapy.

  Since the conventional electric heating apparatus uses electricity as a heat source, it has the advantage that it can prevent the generation of unnecessary and unpleasant strong stimuli on the human body and can easily control the heat, thereby preventing burns. Furthermore, since no ash or sparks are generated, there is an advantage that the futon and the floor are not soiled or burnt, and are easy to manage from the viewpoint of safety and fire.

Japanese Patent Laid-Open No. 2003-250861 JP-A-9-38173 JP 7-299116 A JP-A-8-066457

  In such an electric warming apparatus, it is desired that the thermal treatment effect is transmitted not only to the surface of the affected skin area but also to a deep part of the body.

  By the way, the present inventors have conventionally developed various functional materials having nano platinum supported on the surface of ceramics for the purpose of enhancing the action of nano platinum. Nanoplatinum is known to exert various effects in terms of chemical and physical properties, including the development of antioxidant capacity, and many products using these effects have been put on the market and are attracting attention. For example, as a product using nano platinum, there is a product in which platinum is mixed in an inner pot of a rice cooker. This rice cooker has a reputation for being very delicious even for cooked rice that acts on the water in the inner pot. In addition, cosmetics and drinking water are also formulated with nanoplatinum, which is expected to improve the functionality of the body.

  The present inventors have found the possibility of application to an electric hot water apparatus in the process of searching for further uses of nanoplatinum that exhibits such excellent effects. In other words, a new ceramic material supporting nanoplatinum has been obtained with the knowledge that heat conduction to the human body is smoothed by interposing a ceramic containing nanoplatinum between the heat generating part of the electric heating device and the human body. Found a use.

  The present invention has been made in view of such circumstances, and an object thereof is to provide an electric ablation device that can smoothly conduct heat to the human body and transmit heat to a deep part of the body. To do.

  The electric hot water apparatus of the present invention is an electric hot water apparatus comprising an electric heating element having a heat generating part on the front end side of a main body, and a heat insulating heat insulating member covering the front end side of the heat generating part, wherein the heat insulating heat insulating member is A noble metal particle having a volume average particle diameter of 1 to 10 nm made of platinum, gold or palladium, a base material made of ceramics containing silicon carbide or zirconium carbide supporting the noble metal particle on the surface, the noble metal particle and the group And a noble metal supporting material having an adhesive layer made of colloidal silica interposed between the materials.

  According to the electric hot water apparatus of the present invention, since the heat insulating member contains the noble metal support material, it becomes possible to radiate infrared rays uniformly from the far infrared region to the near infrared region, from the deep part to the shallow part of the human body. On the other hand, it is possible to conduct the heat of the heat generating portion uniformly. For this reason, the heat conduction to the human body is felt mellow.

  Here, the heat insulating heat insulating member may be made of a fiber in which the powdery noble metal support material is spread on the surface. Moreover, the heat insulation heat insulating member may be made of a fiber in which the powdery noble metal support material is kneaded. Further, the heat insulating heat insulating member may be made of a resin in which the powdery noble metal support material is kneaded. The base material of the noble metal support material may be a sintered ceramic.

  Here, it is preferable that the electric heating element includes a temperature adjusting means for adjusting the temperature of the heat generating portion. Moreover, it is preferable that a heat generating part is provided with a PTC heater. In this case, the PTC heater functions as a temperature adjusting means.

  Further, the electric hot water apparatus of the present invention includes a cylindrical cover body that surrounds the heat generating portion and protrudes in the front end direction from the heat generating portion on the front end side of the electric heat generating body, and the cylindrical cover body is elastic in the front end direction. And an elastic member for energizing the cylindrical cover, the cylindrical cover is fitted on the electric heating element so as to be able to advance and retreat, and the electric heating element is pushed into the cylindrical cover body. The heat generating unit may be turned on in a state and turned off when released from the state.

  Moreover, you may provide another heat insulating material between the said heat insulation heat insulation member and the said heat generating part. Further, a cover that surrounds the heat insulating member and is fixed to the electric heating element may be provided on the tip side of the heat insulating member. In this case, since the heat insulating member is interposed between the cover and the heat generating portion, the user only needs to press the cover directly against the affected skin, and it is easy to use. Moreover, a heat insulation heat insulation member can also be protected.

  According to the electric hot water apparatus of the present invention, the heat conduction of the heat from the heat generating part to the human body can be performed smoothly, and the heat can be transmitted to a deep part of the body.

It is sectional drawing which shows the electric hot water apparatus of 1st embodiment. It is a use condition figure of the electric hot water apparatus of a first embodiment. It is a figure which shows a radiation test result. It is a figure which shows a radiation test result. It is sectional drawing which shows the electric hot water apparatus of 2nd embodiment. It is a front view which shows the electric hot water apparatus of 3rd embodiment. FIG. 7 is a partial cross-sectional view taken along line VV in FIG. 6. It is an exploded view for demonstrating the heat insulation heat insulation member and heat-emitting part of 3rd embodiment.

  Next, the present invention will be described in more detail with reference to embodiments.

  The present invention covers the heat generating part of the electric heating element with a heat insulating member containing a noble metal support material, and presses the electric heating element to exert a thermal stimulation effect on the skin affected part and the deep part of the body through the heat insulating heat insulating member. It has the main features where given.

<First embodiment>
A first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a cross-sectional view showing the electric hot water apparatus of the first embodiment. FIG. 2 is a use state diagram of the electric hot water apparatus of the first embodiment. As shown in FIG. 1, the electric hot water apparatus M includes a heat insulating member P and an electric heating element 10.

  First, the electric heating element 10 will be described. As shown in FIG. 1, the electric heating element 10 mainly includes a cylindrical main body 20, a disk-shaped heating part 22, a substrate 23, an electric control circuit 24, a temperature control circuit 25, an operation switch 27, And a power cord 28.

  The cylindrical main body 20 constitutes a main part of the electric heating element 10 and has a bottomed cylindrical shape with an opening 21 at the tip (lower end in FIG. 1). A window portion 26 is formed on the side wall portion of the cylindrical main body 20. In addition, a front-end | tip means the edge part of the side made to contact | abut to the affected skin A in an electric warming apparatus.

  The disc-shaped heat generating part 22 (corresponding to the “heat generating part” of the present invention) is fixed to the tip of the cylindrical main body 20 so as to close the opening 21 of the cylindrical main body 20. The substrate 23 is installed in the cylindrical main body 20. Further, the electric control circuit 24 and the temperature control circuit 25 (corresponding to “temperature adjusting means” of the present invention) are installed on the substrate 23. The electric control circuit 25 is a circuit for rapidly heating the disk-shaped heat generating portion 22 and is usually for reaching a predetermined temperature (80 ° C.) in 20 to 30 seconds. The temperature control circuit 25 is for controlling the temperature of the disk-shaped heat generating part 22 to 80 ° C. or less.

  The operation switch 27 has an operation projection 271 and is installed on the back side (inside) of the window portion 26 of the cylindrical main body 20 with the operation projection 271 exposed to the window portion 26. The operation switch 27 slides the operation protrusion 271 in the window portion 26 to turn on / off the power to the disk-shaped heat generating portion 22. The temperature of the disk-shaped heating part 22 is adjusted via the temperature control circuit 25 in accordance with the power ON / OFF. In addition, since the operation protrusion 271 is embedded in the surface of the window part 26, even if the cylindrical main body 20 slides, it does not contact the cylindrical cover body 30 mentioned later.

  The power cord 28 enters in a state of penetrating the side wall at the upper end portion in the cylindrical main body 20. The power cord 28 is electrically connected to the disk-shaped heating part 22 via the electric control circuit 24 and the temperature control circuit 25.

  Next, the heat insulation heat insulating member P will be described. The heat insulation heat insulating member P is a plate-like member made of resin (polypropylene). In this resin, a noble metal support material is kneaded. The noble metal support material is composed of noble metal particles, a base material, and an adhesive layer. The noble metal particles have a volume average particle diameter of 1 to 10 nm and are composed of at least one kind of noble metal among platinum, gold, and palladium. The substrate is made of a ceramic containing silicon carbide or zirconium carbide that supports the noble metal particles on the surface. The adhesive layer is made of colloidal silica interposed between the noble metal particles and the base material.

  The noble metal particles are formed of at least one kind of platinum, gold, and palladium, and may contain other elements. The volume average particle diameter of the noble metal fine particles is about 1 nm to 10 nm, preferably about 1 nm to 5 nm. In particular, it is desirable that the particle diameter of 90% of the particles is in the range of 0.1 nm to 10 nm on the mass basis. The content of the noble metal fine particles is not particularly limited, and an appropriate amount is mixed as necessary. Although the manufacturing method of noble metal microparticles is not particularly limited, an example will be given together in the description of the manufacturing method later.

  In addition to silicon carbide or zirconium carbide, ceramics forming the base material may include silica, alumina, zirconia, titania, or a fired clay compound.

  In addition, the colloidal silica as the adhesive layer includes a case where a part or all of the particles are melted, and includes a case where the particles are partially bonded due to melting. The colloidal silica content is not particularly limited, but is preferably about 20% to 50%, more preferably about 25% to 30%, based on the total mass.

(Preparation method of noble metal support material)
The noble metal support material manufactured by the method for manufacturing a noble metal support material of the present embodiment is the above-described noble metal support material. The manufacturing method of the noble metal-supporting material of the present embodiment includes an adhesion step, an oxidation removal step, and a spray drying step and other steps as necessary.

  The attaching step is a step of bringing the base material made of ceramics into contact with the noble metal nanocolloid-containing dispersion to attach the noble metal nanocolloid to the surface of the base material. The noble metal nanocolloid is a dispersion having noble metal particles, a colloidal agent for colloidalizing the noble metal particles, and colloidal silica, and dispersed in some kind of dispersion medium. Examples of the dispersion medium include water and alcohol (such as ethanol). Although it does not specifically limit as a colloid agent, So-called thickener, surfactant, and the carboxy group containing compound which contains a carboxy group in a chemical structure can be illustrated. Examples of colloidal agents include polyacrylic acid (including salts such as Na salt and K salt), polymethacrylic acid (including salts such as Na salt and K salt), polyacrylic acid ester, polymethacrylic acid ester, and polyvinylpyrrolidone. (Especially poly-1-vinyl-2-pyrrolidone), polyvinyl alcohol, aminopectin, pectin, methylcellulose, methylsulose, glutathione, cyclodextrin, polycyclodextrin, dodecanethiol, organic acids (hydroxycarboxylic acids such as citric acid) Glycerin fatty acid ester (polysorbate), cationic micelle-cetyltrimethylammonium bromide, surfactant (anionic, cationic, amphoteric, nonionic), alkali metal salt of alkyl sulfate, and mixtures thereof. When the colloidal agent is a carboxy group-containing compound, it is desirable that the noble metal particles are contained so that the number of moles of carboxy groups is about 80 to 180 on the basis of the number of moles of platinum. The content of the colloidal silica is preferably 10% by mass or more and 50% by mass or less, more preferably 10% by mass or more and 30% by mass or less based on the whole solid content. Colloidal silica has a particle size of about 1 nm to 1 μm.

  A noble metal nanocolloid-containing dispersion is prepared by precipitating noble metal particles by refluxing a solution prepared by dissolving a noble metal salt and a protective agent (for example, an organic acid) in a mixed solution of water and alcohol. it can. Thereafter, the dispersion medium can be replaced with alcohol (such as ethanol). Examples of the substitution method include a method of repeating the operation of adding a dispersion medium (such as alcohol) after substitution after evaporating a part of the dispersion medium before substitution.

  After the noble metal nanocolloid-containing dispersion is brought into contact with the base material, the noble metal nanocolloid is attached to the surface of the base material, and then the dispersion medium is removed by any method (for example, drying) to obtain the deposit. .

  Then, an oxidation removal process is performed with respect to a deposit. The oxidation removal step is a step of oxidizing and removing the colloidal agent by heating in an oxidizing atmosphere. At this time, it is particularly desirable that the colloidal silica is melted or softened to bond the noble metal particles and the base. The form of the deposit when performing the oxidation removal step is not particularly limited, and can be performed in a powdery state or a lump shape (for example, a plate shape). After the final shape is formed into a required shape, the noble metal-supporting material can be formed into the required shape by performing this oxidation removal step. Moreover, it can also be made into a powder by adding operations such as grinding the obtained noble metal-supporting material. The heating temperature is preferably about 800 ° C to 1300 ° C, and more preferably 1000 ° C to 1100 ° C. The heating time can be appropriately set according to the time required for the colloidal agent to be oxidized and removed, and can be set to about 1 to 3 hours, for example.

  Adopting a spray drying process is mentioned as a desirable method for making a deposit into a powder form. The spray drying process is a method in which a powdery form is adopted as a base material, and spray drying is performed in a state where the base material is dispersed in a dispersion containing a noble metal nanocolloid. The conditions for performing spray drying are not particularly limited, but it is desirable to set the temperature so that the dispersion medium can be removed quickly. For example, when water is used as the dispersion medium, the dispersion medium can be quickly removed by evaporation when the temperature for spray drying is about 180 ° C. to 250 ° C.

(how to use)
The usage method of the electric hot water apparatus M is demonstrated with reference to FIG. 1 and FIG. As shown in FIGS. 1 and 2, first, the heat insulating member P is placed on the skin affected part A of the human body. Then, the operation switch 27 of the electric heating element 10 is turned on and temperature adjustment is set (low temperature, medium temperature, high temperature). Thereafter, the disk-shaped heating element 22 of the main body 20 is pressed against the surface of the heat insulating member P. As a result, a warmth effect can be achieved. The heat insulating and heat insulating member P may be fixed to the distal end portion of the electric heating element 10. In this case, the operation switch 27 is turned ON and the tip of the electric warming apparatus M is directly pressed against the affected skin A, so that the warming effect is exhibited and a smooth warming work is possible.

(Other aspects of heat insulation member P)
Here, the heat insulation heat insulating member P is not limited to the above. For example, the heat insulating member P may be made of a fiber having a powdery noble metal support material spread on the surface thereof. The spreading of the noble metal-supporting material on the fiber surface may be performed in a fiber (yarn) state, or may be performed in a cloth or non-woven fabric state. Further, the heat insulating and heat insulating member P may be made of a fiber in which the powdery noble metal support material is kneaded, for example, a cloth, a nonwoven fabric, paper, or the like formed of the fiber. The base material of the noble metal support material may be a sintered ceramic.

  Moreover, you may interpose another heat insulation heat insulation member between the electric heat generating body 10 and the heat insulation heat insulation member P, or between the heat insulation heat insulation member P and the skin affected part A (namely, the front end side of the heat insulation heat insulation member P).

(Test 1)
The electric hot water apparatus M of the present embodiment and the electric hot water apparatus provided with a heat insulating heat insulating member (hereinafter referred to as a heat insulating heat insulating member S) made of a resin that does not contain a noble metal support material instead of the heat insulating heat insulating member P are double-blind. The sensory test (6 males and 6 females) was performed after actually using the test method. As a result, four men and five women evaluated that “the electric hot water apparatus M feels better”. The environment at the time of the evaluation was that the weather was rain, the outside temperature was 13 ° C, and the room temperature was 21 ° C.

(Test 2)
The emissivity was measured for the heat insulating member P and the heat insulating member S. FIG. 3 is a graph showing the emissivity of the heat insulating member P. FIG. 4 is a graph showing the emissivity of the heat insulating member A that does not include a metal support material.

  Specifically, the noble metal support material used in the test uses platinum having a volume average particle diameter of 1 to 10 nm as noble metal particles, ceramics containing silica and zirconium carbide as a base material, and colloidal silica as an adhesive layer. Generated. The heat insulation heat insulating member P in the test is formed by kneading the above-mentioned noble metal support material (powder form) into polypropylene to form a sheet.

The volume ratio of zirconium carbide in the substrate is approximately 7.5%, preferably 5% to 10%. Moreover, the mass of zirconium carbide is approximately 25 g / m ² and preferably 20 g / m ² or more. The heat insulation heat insulating member S is a resin sheet simply made of polypropylene.

  It is considered that the higher the emissivity of far-infrared rays (the lower the reflectivity), the more the heat insulating and heat insulating member absorbs heat rays, and the heat conduction to the human body becomes smoother and the heat can be transferred to a deep part of the body. Among far-infrared rays, the higher the emissivity in a short wavelength region (approximately 10 μm or less) that is considered to affect heat rays, the more efficiently the heat insulating and heat insulating member absorbs the heat rays and enables effective heat conduction to the human body.

  As shown in FIGS. 3 and 4, the emissivity of the heat insulating and heat insulating member P is larger at a wavelength of about 10 μm or less. That is, the radiation of far infrared rays in the short wavelength region can be increased by including the noble metal support material in the heat insulating heat insulating member.

<Second embodiment>
A second embodiment will be described with reference to FIG. FIG. 5 is a cross-sectional view showing the electric hot water apparatus of the second embodiment. As shown in FIG. 5, the electric heating device M <b> 2 of the second embodiment mainly includes an electric heating element 10, a cylindrical cover body 30, and a heat insulating member P. In the present embodiment, a bowl-shaped receiving seat 29 protrudes from the outer peripheral surface of the distal end portion of the cylindrical main body 20. The receiving seat 29 will be described later.

  The cylindrical cover body 30 is externally fitted to the cylindrical main body 20 so as to be able to advance and retreat. The cylindrical cover body 30 surrounds the disk-shaped heat generating portion 22 in a state where the tip position protrudes from the disk-shaped heat generating portion 22 (positioned on the front end side) when the electric heating device M2 is not used. A bowl-shaped receiving seat 31 is formed on the inner peripheral surface of the cylindrical cover body 30.

  Here, a coiled compression spring S is disposed between the receiving seat 29 and the receiving seat 31. The coiled compression spring S is interposed between the cylindrical cover body 30 in a state of being fitted on the cylindrical main body 20. And it is elastically urged | biased the cylindrical cover body 30 to the front-end | tip direction by being spanned between the receiving seat 31 and the receiving seat 29. FIG.

  A heat-resistant rubber ring 35 is fixed to the lower end edge of the cylindrical cover body 30. This is for protecting the skin affected part A. The distance B between the upper end portion of the window portion 26 and the upper end of the cylindrical cover body 30 is designed to be smaller than the stroke C of the cylindrical main body 20 with respect to the cylindrical cover body 30. For this reason, when the cylindrical main body 20 is pushed in to perform the warming work, the operation switch 27 is buried in the cylindrical cover body 30 and does not touch the human hand. The temperature setting of the part 22 does not fluctuate and the switch is not turned off.

  A limit switch 50 is embedded in the side wall portion of the cylindrical main body 20. This limit switch 50 is positioned, moved or displaced when the cylindrical main body 20 is pushed into the cylindrical cover body 30 and the disk-shaped heat generating portion 22 reaches the skin affected area A via the heat insulation member P. Is detected, and the flow of current to the disk-shaped heat generating portion 22 is turned ON. For this reason, even if the operation switch 27 is in the ON state, the disk-shaped heat generating portion 22 does not turn on unless the skin affected part A is pressed, so that waste of power consumption can be prevented. As the limit switch 50, a micro switch is usually used.

  The usage method of 2nd embodiment is demonstrated with reference to FIG. As shown in FIG. 5, first, a heat insulating and heat insulating member P is placed on the skin affected part A of the human body. Then, the operation switch 27 of the electric heating element 10 is turned on and temperature adjustment is set (low temperature, medium temperature, high temperature). Then, the front-end | tip of the cylindrical cover body 30 is applied to the surface of the heat insulation heat insulation member P2. In the state as it is, the cylindrical main body 20 (electric heating element 10) is pushed against the coiled compression spring S, and the disk-shaped heating part 22 is pressed against the inner surface of the tip of the cylindrical cover 30 (imaginary line in FIG. 5). reference). As a result, the limit switch 50 is turned on, and the disk-shaped heat generating portion 22 reaches a predetermined temperature (about 80 ° C.) in about 20 to 30 seconds by the electric control circuit 24, and is passed through the heat insulating member P to the skin affected area A. Can give thermal stimulation.

  When ending the acupuncture therapy, the pushing of the cylindrical main body 20 may be released (see the solid line in FIG. 5). Thereby, the cylindrical main body 20 (electric heating element 10) returns to the original state (see the solid line in FIG. 5) due to the elasticity of the coiled compression spring S, the limit switch 50 is turned OFF, and the current to the disk-shaped heating element 22 is restored. The flow of is interrupted. At this time, since the operation switch 27 is still in the ON state, the next therapy is easily performed continuously.

  Further, the heat insulating and heat insulating member P may be formed integrally with the cylindrical cover body 30. For example, the cylindrical cover body 30 may be formed of a resin kneaded with a noble metal support material.

<Third embodiment>
The electric hot water apparatus M3 of 3rd embodiment is demonstrated with reference to FIGS. FIG. 6 is a front view showing the electric hot water apparatus of the third embodiment. FIG. 7 is a partial cross-sectional view taken along line VV in FIG. FIG. 8 is an exploded view for explaining the heat insulating and heat insulating member and the heat generating portion of the third embodiment.

  As shown in FIG. 7, the electric heating device M3 mainly includes an electric heating element 10a and a heat insulating member P3. As shown in FIG. 6, the electric heating element 10 a mainly includes a pistol-shaped (L-shaped) main body 20 a having an open end, a heating part 22 a, and an AC adapter 70.

  The heat generating part 22a is installed inside the tip of the main body 20a. The heat generating part 22a mainly includes a mounting plate 80, a support tube 81, a heat generating plate 83, a PTC (Positive Temperature Coefficient) heater 85, a lower electrode 86, an upper electrode 87, a cylindrical spacer 88, It is equipped with.

  The mounting plate 80 is made of aluminum and is fixed to the front end side in the main body 20a. The support cylinder 81 is fixed to the mounting plate 80 with screws 82 and 82. The support cylinder 81 is a heat resistant member and is formed of bakelite.

  The heating plate 83 is made of aluminum, and is fixed to the upper end edge of the support cylinder 81 with screws 84 and 84. The heating plate 83 that receives the heat of the PTC heater 85, which will be described later, is pressed against the heat transfer object, thereby producing a warming effect.

  The PTC heater 85 has a property that the resistance value increases rapidly when the temperature becomes high, and controls the heat generation to a predetermined temperature (about 85 ° C.). The PTC heater 85 is disposed on the back side (terminal side) of the heating plate 83 with the lower electrode 86 on the lower surface (terminal side) and the upper electrode 87 superimposed on the upper surface (tip side). The PTC heater 85 is fixed to the mounting plate 80 with screws 89 via a heat-resistant cylindrical spacer (manufactured by Bakelite) 88.

  The operation switch 27 is provided on the main body 20a as in the first embodiment. In this embodiment, the power ON / OFF, the high temperature mode (85 ° C.), and the low temperature mode (75 ° C.) can be switched by sliding the operation switch 27. Each mode is for adjusting the heat generation temperature.

  As shown in FIGS. 7 and 8, the heat insulating member P3 includes a plurality of cotton cloths and heat-resistant paper, is overlaid on the upper surface of the mounting plate 80, and its edge is bent along the tip of the main body 20a. And fixedly held by a fixed cylinder 90. As shown in FIG. 8, the heat insulating and heat insulating member P <b> 3 is obtained by sandwiching 4 to 8 heat resistant papers 92 between two cotton cloths 91 and 91 and covering them with a Teflon (registered trademark) sheet 93.

  Here, the cotton cloths 91 and 91 are made of fibers in which a powdery noble metal support material is spread on the surface. Thereby, far-infrared radiation increases, and the same effect as the first embodiment is exhibited. Further, as in the present embodiment, when the heat insulating member P3 is configured to have a plurality of cloths and heat insulating paper, the effect of heat insulating and heat insulating is greatly improved, and the same effect as that of the hot and cold rods by the stick mogus, that is, the body You can get a feeling of warmth that goes into the deep part. In the sensory test for the heat insulation member having the above-described configuration not including the noble metal support material, 29 out of 30 people (21 women in their 20s and 80s, 9 men) (21 women, 8 men) “I have the above effect”. In addition, since the main body 20a has a pistol shape, the user can easily hold the main body 20a, and the front end can be easily brought into contact with a target site (affected skin).

  In the heat insulating and heat insulating member P3, the heat resistant paper 92 may be made of a fiber kneaded with a powdered noble metal support material. Moreover, as for the heat insulation heat insulation member P3, at least 1 should just contain the noble metal support material among the some cotton cloth 91 and the heat-resistant paper 92. FIG. Further, instead of the Teflon (registered trademark) sheet 93, a resin cover member, a plastic film, or the like may be employed, and the cover member or the like may be provided on the Teflon (registered trademark) sheet 93.

  The PTC heater 25 may be a normal electric heater. In this case, it is preferable that the PTC heater 25 includes temperature adjusting means (such as an electric control circuit and a temperature control circuit) together with the electric heater. The plates 80 and 83 are not limited to aluminum, but may be iron or copper. In addition, when loquat leaves are interposed between the heat generating parts 22 and 22a and the human body (affected skin), or when the heat generating parts 22 and 22a are provided with loquat leaves at the tips, loquat leaves Equivalent to hot water.

A: affected skin area, F: hot-spring sheet,
M, M2, M3: electric thermal therapy device,
S: Coiled compression spring, P, P3: Thermal insulation member
10: Electric heating element, 20: Cylindrical main body, 20a: Main body, 22: Disc-shaped heating part,
22a: heating unit, 23: substrate, 24: electric control circuit, 25 temperature control circuit,
27: Operation switch, 271: Operation protrusion, 28: Power cord,
29, 31: receiving seat, 30: cylindrical cover body, 70: AC adapter,
80: mounting plate, 81: support cylinder, 83: heating plate,
85: PTC heater, 86: Lower electrode, 87: Upper electrode, 88: Cylindrical spacer,
91: Cotton cloth, 92: Insulated paper, 93: Teflon (registered trademark) sheet

Claims (10)

An electric heating device comprising: an electric heating element having a heat generating part on the tip side; and a heat insulating member that covers the tip side of the heat generating part,
The thermal insulation member is
Noble metal particles having a volume average particle diameter of 1 to 10 nm made of platinum, gold, or palladium;
A substrate made of ceramics containing silicon carbide or zirconium carbide carrying the noble metal particles on the surface;
An adhesive layer made of colloidal silica interposed between the noble metal particles and the substrate;
An electric hot-water device comprising a noble metal-supporting material having   The electric warming apparatus according to claim 1, wherein the heat insulating heat insulating member is made of a fiber having a powdery noble metal support material spread on a surface thereof.   The electric warming apparatus according to claim 1, wherein the heat insulating heat insulating member is made of a fiber in which the powdery noble metal support material is kneaded.   The electric warming apparatus according to claim 1, wherein the heat insulating heat insulating member is made of a resin in which the powdery noble metal support material is kneaded.   The electric warming apparatus according to claim 1, wherein the base material is sintered ceramics.   The electric heating device according to any one of claims 1 to 5, wherein the electric heating element includes temperature adjusting means for adjusting a temperature of the heat generating portion.   The electric heating device according to any one of claims 1 to 6, wherein the heat generating unit includes a PTC heater. A cylindrical cover body that surrounds the heat generating part and protrudes in the front end direction from the heat generating part on the front end side of the electric heating element;
An elastic member for elastically urging the cylindrical cover body in a distal direction;
Further comprising
The cylindrical cover is externally fitted to the electric heating element so as to advance and retreat,
The electric heating element according to any one of claims 1 to 7, wherein the electric heating element is turned on when the heating element is pushed into the cylindrical cover body and turned off when released from the state. The electric hot water apparatus as described.   The electric hot water apparatus as described in any one of Claims 1-8 provided with a heat insulating material between the said heat insulation heat insulation member and the said heat generating part.   The electric hot water apparatus as described in any one of Claims 1-9 provided with the cover surrounding the said heat insulation heat insulation member and being fixed to the said electric heat generating body at the front end side of the said heat insulation heat insulation member.

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