Radio frequency ablation array needle

Abstract

The invention discloses a radio frequency ablation array needle. The radio frequency ablation array needle comprises a radio frequency source, an ablation needle and a needle handle. The ablation needle is fixedly connected with the needle handle; the needle handle is provided with a connecting wire which is fixedly connected with the ablation needle; one end of the connecting wire, which is away from the needle handle, is fixedly connected with a connector; the connector is electrically connected with the radio frequency source. Through flexible application of the radio frequency ablation array needle, the number of times of ablation can be reduced to a large extent, the operating time can be shortened, more tissues can be retained, pain of a patient can be released, and the cure rate can be improved.

Description

technical field [0001] The invention relates to a medical device, in particular to a radiofrequency ablation array needle. Background technique [0002] Resection is still one of the main radical treatments for liver tumors, but intraoperative or postoperative bleeding is one of the most common and most difficult complications of liver surgery. Data show that about 20% to 60% of patients will have to receive blood transfusion due to surgical blood loss, and massive blood loss and blood transfusion are important factors affecting the prognosis and recurrence of liver cancer. How to control bleeding has always been the focus of liver surgery techniques. Commonly used control methods for hepatic hemorrhage include low-pressure anesthesia, partial or total hepatic blood flow occlusion, etc., but these methods may increase liver function damage or liver failure; if large vascular clamps are used to treat hemorrhage, it is time-consuming and laborious, and there are still Heav...

AI Technical Summary

Problems solved by technology

Commonly used control methods for hepatic hemorrhage include low-pressure anesthesia, partial or total hepatic blood flow occlusion, etc., but these methods may increase liver function damage or liver failure; if large vascular clamps are used to treat hemorrhage, it is time-consuming and laborious, and there are still profuse bleeding may occur

Radiofrequency ablation technology has been widely used in the treatment of the above diseases because of its good ablation and hemostasis effect. There are many types of radiofrequency ablation electrodes on the market, but in specific applications, these radiofrequency ablation electrodes cannot flexibly deal with the range of lesions, It is not convenient for specific use, and multiple ablations are required, which prolongs the operation time, increases the pain of the patient, increases the risk of complications, and reduces the therapeutic effect

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