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Graphene coating electrothermal needle for high-efficiency heat production

A technology of graphene and electric heating needles, which is applied in the field of medical devices to achieve the effects of convenient mass production, high heat production efficiency, and simple structure

Active Publication Date: 2019-02-26
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of this, this material can be used as an excellent heat-generating material in the design of electric heating needles, but there is no report on this aspect

Method used

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  • Graphene coating electrothermal needle for high-efficiency heat production
  • Graphene coating electrothermal needle for high-efficiency heat production
  • Graphene coating electrothermal needle for high-efficiency heat production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The insulation and thermal insulation coating 2 is attached to the surface of the hollow needle body 1 through the following steps:

[0044] (1) Choose a needle point integrated stainless steel hollow needle body 1 with a length of 80 mm, an inner diameter of 0.5 mm, an outer diameter of 0.8 mm, and a first inclination angle of the needle tip of 9°. The hollow needle body 1 is polished with fine sandpaper to remove impurities, and then used The mixed acid solution is corroded for 1 minute, and the mixed acid solution is concentrated hydrochloric acid with a mass fraction of 38%: concentrated nitric acid with a mass fraction of 68%: water volume ratio = 10:1:10;

[0045] (2) The nano-silica gel coating of 1 weight part is mixed with the water of 1 weight part to obtain mixed solution, the hollow needle body 1 after processing is immersed in the mixed solution for 5 minutes, then by dipping and pulling method on the needle body surface Form a film and dry it in an oven at...

Embodiment 2

[0054] The insulation and thermal insulation coating 2 is attached to the surface of the hollow needle body 1 through the following steps:

[0055] (1) Choose a silver hollow needle with a length of 100mm, an inner diameter of 0.2mm, an outer diameter of 0.4mm, and a needle tip with a first inclination angle of 11°, remove impurities by grinding with fine sandpaper, and then use a mixed acid solution (mass fraction 38% concentrated hydrochloric acid: mass fraction 68% concentrated nitric acid: water=10:1:10) corrosion for 2 minutes;

[0056] (2) 1 weight part of nano-silica gel coating is mixed with 5 weight parts of water, the needle body is immersed in the mixed solution for 5 minutes, and then a thin film is formed on the surface of the needle body by dipping and pulling method, and it is dried in an oven at 80 ° C. Dry in medium for 5 hours to form a film;

[0057] (3) Repeat the above 5 times to obtain an insulating and heat-insulating coating with a thickness of 100 μm ...

Embodiment 3

[0066] The insulation and thermal insulation coating 2 is attached to the surface of the hollow needle body 1 through the following steps:

[0067] (1) Choose a needle-point integrated gold hollow needle tube with a length of 100 mm, an inner diameter of 0.4 mm, an outer diameter of 0.9 mm, and a needle point with a first inclination angle of 17°. Polish it with fine sandpaper to remove impurities, and then use a mixed acid solution (mass. Fraction 38% concentrated hydrochloric acid: mass fraction 68% concentrated nitric acid: water = 10:1:10) corrosion for 1 minute;

[0068] (2) 1 weight part of nano-silica gel coating is mixed with 5 weight parts of water, the needle body is immersed in the mixed solution for 5 minutes, and then a thin film is formed on the surface of the needle body by dipping and pulling method, and it is dried in an oven at 80 ° C. Dry in medium temperature for 5 hours to form a film to obtain an insulating coating with a thickness of 20 μm and a length o...

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Abstract

The invention provides a graphene coating electrothermal needle for high-efficiency heat production. The graphene coating electrothermal needle comprises a tubular hollow needle body, a bevel connection needle tip integrated with the tubular hollow needle body, an insulated heat insulating coating and graphene coating of nano-silica gel which are attached to the outer surface of the hollow needlebody, an insulated conductor penetrating through the hollow needle body and the graphene coating to form a closed loop, a connection point between the insulated conductor and the graphene coating andan insulated needle handle used for pinch; the needle body is coated with the insulating coating and the graphene coating in sequence, and the heat production part is the graphene coating, the heat production efficiency is higher, and the graphene coating electrothermal needle is superior to existing most electrothermal materials; the positive and negative electrodes of a power supply are connected to the upper and lower ends of the graphene coating through the insulated conductor respectively, the current does not flow through the needle body, the heat production position is precise, and thetemperature is easy to control. The graphene coating electrothermal needle for the high-efficiency heat production has the advantages that the structure is simple, the use is convenient, the graphenecoating electrothermal needle is safe and reliable, the needle handle insulates heat, and the fine operation of a needle operator cannot be disturbed.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a graphene-coated electrothermal needle with high heat generation. Background technique [0002] Acupuncture and moxibustion is an important part of the inheritance of traditional Chinese medicine. It achieves the purpose of treatment by piercing the needles into the human body to stimulate the acupuncture points on the meridians of the human body. It is a treatment method from the outside to the inside. Warming needle acupuncture is an important part of acupuncture therapy. In ancient times, it was mainly achieved by burning moxa to produce heat. With the development of electronic science, warm acupuncture treatment equipment is also constantly updated, and a series of electric heating acupuncture needles (hereinafter referred to as electric heating needles) have appeared. At present, electric heating needles are mainly divided into two types according to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61H39/08A61H39/06
CPCA61H39/06A61H39/086A61H2201/0207
Inventor 吴道澄唐鹏肖鹏朱红瑞甘震海付涛
Owner XI AN JIAOTONG UNIV
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