Freezing radiofrequency ablation needle and system

By designing a cryo-radiofrequency ablation needle that combines cryoablation and radiofrequency ablation functions, the module's central control switching and precise adjustment are achieved. This solves the problems of incomplete cryoablation and difficult radiofrequency ablation control in existing technologies, improving surgical efficiency and ablation accuracy, simplifying the structure, and increasing gas source utilization efficiency.

CN121313293APending Publication Date: 2026-01-13ACCUTARGET MEDIPHARMA (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202511385468.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2026-01-13

AI Technical Summary

Technical Problem

Existing cryoablation and radiofrequency ablation techniques each have their shortcomings. Cryoablation may be incomplete and has poor hemostasis during the procedure, while radiofrequency ablation is difficult to control the temperature, causes intense pain, and makes it difficult to achieve precise localization and complete removal of the tumor.

Method used

A cryo-radiofrequency ablation needle is designed, combining cryotherapy and radiofrequency ablation functions. Through high-pressure nitrogen throttling cryotherapy technology, a rewarming module, and a radiofrequency ablation module, the switch between modules is achieved by central control. An adjustable insulating tube and a vacuum wall structure are introduced, combined with range adjustment and a synchronization lock button, to achieve precise control and switching between cryotherapy and radiofrequency ablation.

Benefits of technology

It achieves functional complementarity between cryoablation and radiofrequency ablation, improves surgical efficiency, shortens switching time, ensures the precision and safety of the ablation area, simplifies the structure, improves gas source utilization efficiency, and reduces tissue damage.

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Abstract

The invention discloses a cryogenic radiofrequency ablation needle and system, and belongs to the technical field of cryoablation, the cryogenic radiofrequency ablation needle comprises a needle head part, an adjusting handle part, a delivery pipe part, a quick connector part, a rewarming temperature measurement ablation plug part and a radiofrequency ablation plug part, the needle head part is connected to the adjusting handle part, and the delivery pipe part is connected to the radiofrequency ablation plug part; the adjusting handle part is used for connecting the needle head part and the conveying pipe part, the quick connector part is connected to the conveying pipe part, and the rewarming temperature measurement ablation plug part is connected with the radio frequency ablation plug part. On the basis of a cryoablation probe of a high-pressure nitrogen throttling freezing technology, the rewarming module and the radio frequency ablation module are added, central control switching of the three modules is achieved, the integrated structure design of the freezing module, the rewarming module and the radio frequency module is achieved, the integrated structure can be used in a multi-module combined mode and can also be used independently, and the cost is reduced. The cold ablation function and the thermal ablation function are mutually complemented.
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