Short-circuit preventing medical fuser and manufacture method thereof

Abstract

The invention relates to the field of medical apparatuses and instruments, in particular to a medical thermoae. A short-circuit preventing medical fuser comprises an electric heating core which includes a ceramic substrate, a temperature sensor and a heating device, wherein the temperature sensor is disposed on a front end face of the ceramic substrate, a lead of the temperature sensor penetrates through the ceramic substrate and reaches a back end face of the ceramic substrate, and the heating device is disposed on an outer surface of the ceramic substrate. According to the technical scheme, the short-circuit preventing medical fuser has the advantages that short circuit between the heating device and the temperature sensor and short circuit of the temperature sensor lead are avoided effectively, heat transmission is fast, heating efficiency is high, and working temperature can be as high as 280 DEG C.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a medical thermal pole. Background technique [0002] Thermal electrode therapy technology is based on the principles of heat conduction, contact compression and physical ligation, and achieves local thermal effects in the target area through fine thermal electrode probes, thereby accurately coagulating, cauterizing or vaporizing the diseased tissue. [0003] Existing thermal electrodes such as the "medical thermal electrode" disclosed in Chinese patent CN201734778U have high working temperature (250°C), small outer diameter (2.4mm), and low cost, and are suitable for various types of gastrointestinal endoscopes. Biopsy channel and other advantages. It can be used for the treatment of gastrointestinal bleeding, small polyps, chronic erosive gastritis and esophageal lesions. However, the existing heating electrodes usually use alloy resistance wire as the electric heating elemen...

AI Technical Summary

Problems solved by technology

However, the existing heating electrodes usually use alloy resistance wire as the electric heating element, which is wound on the cylindrical ceramic substrate, and the resistance wire and the thermocouple are insulated with mica sheets. This electric heating material and structure cannot leave a certain space for filling Packaged with insulating and heat-conducting materials, it is very easy to produce short circuits between turns of resistance wire, between resistance wire and thermocouple, and between thermocouple leads, resulting in safety problems such as burning of the heating core and falling off of the metal cover.

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