Radio frequency needle with two active ends and application method thereof

Abstract

The invention discloses a radio frequency needle with two active ends comprising a needle body; the hollow structure inside the needle body is arranged as a radio frequency ablation channel; a needle core which can ablating organs, stimulating nerves, electrifying and positioning; the outer surface of the top part of the needle body is provided with a first end conducting region which is connected with image technologies such as ultrasound or CT; the outer surface of the needle body bottom is provided with a second end conducting region which is used for penetrating to focus of infection and releasing current to perform radio frequency ablation or stimulation on tumor parts or nerve tissues; an insulation region is arranged between the first end conducting region and the second conducting region for preventing current flowing to peripheral tissues; the length of the first end conducting region and the length of the second end conducting region are less than that of the insulation region; the surface of the insulation region is provided with a scale identification showing the penetrating depth in focus of infection. By means of the first end conducting region, the image technologies such as ultrasound or CT can be connected to electrify and position tumor parts, and the work mode of lead connecting electrodes is replaced.

Description

technical field [0001] The invention relates to a medical device, in particular to a radio frequency needle with two active ends. 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 ultrasound or CT imaging technology to locate and guide the active radiofrequency needles at both ends to be directly inserted into the lesion, the local tissue of the lesion is heated by radiofrequency energy, dried and finally coagulated and inactivated....

AI Technical Summary

Problems solved by technology

[0005] However, at present, radio frequency needles rely on electrodes to connect to ultrasound or CT imaging technology, which is extremely inconvenient in the connection of electrodes. Not only does the radio frequency needle need to be positioned, but it also needs to be fixed and connected with electrode puncture, which brings a lot of trouble to the doctor's operation. Inconvenient, and the service life of the electrode is relatively short, the cost of the electrode is relatively expensive, the cost of treatment is enhanced, and the connection of the operation is inconvenient, the practical performance is not good, there are deficiencies, and it cannot meet the needs of social development

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