Radiofrequency ablation rotary cutter

By designing a radio frequency ablation rotary cutting knife, using the adjustment collar to form a sampling area, and thermally condense or ablate the lesion tissue and body fluid before the rotary cutting tube is removed or sampled, the problem of the risk of body fluid leakage in the prior art is not effectively controlled, and the risk of lesion spread is significantly reduced.

CN119157627BActive Publication Date: 2025-03-28CANYON MEDICAL INC
2 Cites 0 Cited by

Patent Information

Application Number
CN202411545955.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-01
Publication Date
2025-03-28
Estimated Expiration
2044-11-01

AI Technical Summary

Technical Problem

During the process of piercing the tissue and ablation, there is still a risk of body fluids oozing out of the needle duct, and the risk of lesion spread is not effectively controlled.

Method used

A radio frequency ablation rotary cutting knife is designed, and after locally piercing the lesion tissue through the first negative electrode, the adjustment collar is rotated to form a sampling area between the first negative electrode and the second negative electrode. First, the lesion tissue and body fluid at the front and rear ends of the needle channel are thermally condensed or ablated by inserting the needle rod and the second negative electrode, the outer needle rod and the first negative electrode, respectively, and then the lesion tissue is removed or sampled by a rotary cutting tube.

Benefits of technology

It effectively avoids the diffusion caused by body fluid flowing out of the needle entrance before sampling is completed, further reducing the risk of lesions spread during the operation.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention belongs to the technical field of medical equipment, and specifically relates to a radiofrequency ablation rotary cutter, which includes a handle front shell, one end of which is equipped with a coaxially arranged rotary cutter tube, an inner needle rod and an outer needle rod, the rotary cutter tube, the inner needle rod and the outer needle rod are arranged in sequence from the inside to the outside, and the handle front shell and the outer needle rod are fixedly connected. After the first negative electrode of the present invention partially penetrates into the diseased tissue, the adjustment ring is rotated to form a sampling area between the first negative electrode and the second negative electrode, and the diseased tissue and body fluid at the front and rear ends of the needle channel are first thermally coagulated or ablated by piercing the needle rod and the second negative electrode as well as the outer needle rod and the first negative electrode, and then the diseased tissue is excised or sampled by the rotary cutter tube, so as to avoid the body fluid flowing out from the entrance of the needle channel before the sampling is completed and causing diffusion, and further reduce the risk of disease spread during the operation.
Need to check novelty before this filing date? Find Prior Art