Radio-frequency needle

Abstract

The invention discloses a radio-frequency needle which comprises a needle body, wherein an inner electrode needle capable of ablating tissue, stimulating nerves, electrifying and positioning is embedded into a hollow part in the needle body; the inner electrode needle is detachably connected with the needle body; an insulating layer for preventing current from flowing to the surrounding tissue is coated or plated on an outer surface at one end of the needle body; a conduction region for puncturing the tissue is arranged at the other end of the needle body; the conduction region has a shape of bended, flat or circular blunt end; the puncturing resistance is ultralow; the operative wound can be reduced; the pain of the patient can be relieved; the treatment time is short; the radio-frequency needle is free from anaphylactic reaction to a human body and is free from pain phenomenon and current leakage phenomenon; the bending section of the focus can be treated, so that the treatment is free from blind area; the problem that a straight needle cannot reach a barrier puncture locus in the blind area can be solved; the inner electrode needle has an ultrasonic location function; the positioning is accurate; the focus can be positioned at multiple angles; the imaging effect of the ultrasonic image in the treatment process can be enhanced; the design is novel; the radio-frequency needle is an excellent innovation scheme and has wide market prospect.

Description

technical field [0001] The invention relates to medical supplies, in particular to radio frequency needles. Background technique [0002] In the field of minimally invasive interventional therapy, puncture needles with different functions produce different therapeutic effects. For example: among the puncture needles currently used, there are puncture needles for soft tissue puncture or bone marrow puncture; a common radiofrequency puncture treatment needle can introduce radiofrequency energy to heat and coagulate tissues; a biopsy puncture needle can be used for soft tissue sampling and so on. [0003] Radiofrequency ablation is a minimally invasive interventional treatment technique. With the help of imaging techniques such as ultrasound or CT, radiofrequency needles are positioned and guided to be inserted directly into the lesion, and radiofrequency energy is used to generate high temperature in the local tissue of the lesion, dry and finally coagulate and inactivate soft...

AI Technical Summary

Problems solved by technology

[0005] However, the current radiofrequency needles are all linear. During radiofrequency ablation, the bending joints cannot be treated or the contact area is too small. There is a treatment blind spot, which is not conducive to the recovery of the patient. Insufficient, unable to meet the needs of social development

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