Plasma radio frequency ablation puncture trocar combined device

Abstract

A plasma radiofrequency ablation and puncture trocar combination device. The invention relates to the field of medical devices. It includes an external puncture trocar and a built-in radio frequency puncture needle. The external puncture trocar is composed of a needle point, a needle body and a needle wing. The needle point and the needle body are coated with Teflon. The built-in radio frequency puncture needle Consists of a needle tip, a needle body, a needle seat and a needle core. There is no Teflon coating on the outside of the needle tip, and the length is 2mm. The outside of the needle body has a Teflon coating. The tip of the needle tip is 5 mm, and the inner diameter of the external puncture trocar corresponds to the outer diameter of the built-in radio frequency puncture needle, and the external puncture trocar and the built-in radio frequency puncture needle are detachable structures. The invention has the advantages of simple structure, low cost and convenient use, and provides technical convenience for patients with peripheral neuralgia to implement low-temperature plasma radiofrequency ablation to establish a working channel.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a plasma radiofrequency ablation and puncture trocar combination device. Background technique [0002] Peripheral neuralgia refers to pain in ganglia, nerve trunks, nerve plexuses and nerve endings other than the central nervous system. Clinically, trigeminal neuralgia, sphenopalatine neuralgia, occipital neuralgia, thoracic neuralgia, and brachial plexus are more common. neuralgia, ulnar neuralgia, radial neuralgia, median neuralgia, sciatica, femoral neuralgia, etc. [0003] At present, radiofrequency thermocoagulation of peripheral nerves has been successfully used in patients with peripheral neuralgia, and the curative effect is good. [0004] Radiofrequency thermocoagulation is to precisely output ultra-high frequency radio waves through a specific radiofrequency thermocoagulation puncture needle to generate local high temperature in the target nerve tissue and play the rol...

AI Technical Summary

Problems solved by technology

After the working channel is established, it is necessary to further extend the low-temperature plasma knife head out of the puncture needle tip by at least 5mm to ensure that the low-temperature plasma knife head is completely exposed outside the working channel and placed on the target nerve. However, because the low-temperature plasma knife head does not With the nerve electrical stimulation function, it is impossible to locate the nerve position through sensory nerve stimulation and motor nerve stimulation mode, which makes it difficult to locate the target nerve and limits its clinical application

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