Microwave ablation needle positioning and fixing device applied to CT guidance

Abstract

The invention discloses a microwave ablation needle positioning and fixing device applied to CT guidance. The device comprises a base, a position adjusting seat, an angle adjusting seat, a reference surface positioning piece and a clamping and fixing structure. A chute is formed in the base along the length direction; and a sliding block capable of sliding along the sliding groove is arranged at the lower end of the position adjusting seat. The middle part of the angle adjusting seat is rotatably arranged on the position adjusting seat, the angle adjusting seat is coaxial with the position adjusting seat, a puncture positioning hole for inserting a microwave ablation needle is formed in one end of the angle adjusting seat along the radial direction of the angle adjusting seat, and angle adjusting metal reference lines for confirming a puncture angle under the guidance of CT are embedded in two sides of the puncture positioning hole. The microwave ablation needle can be quickly adjustedto a correct puncture angle, puncture depth and puncture plane under the guidance of CT, and can be effectively fixed after being punctured to a cancer lesion in a patient body, so that the labor intensity of medical personnel is effectively reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a positioning and fixing device for a microwave ablation needle applied under CT guidance. Background technique [0002] With the increasing incidence of malignant tumors year by year, medical experts have been actively studying and exploring various methods that can effectively treat cancer, including surgical resection, drug therapy, radiation therapy and interventional therapy. , high efficiency and less toxic and side effects, it has been widely used in tumor treatment. [0003] Under the guidance of CT images, microwave ablation can directly puncture the microwave ablation needle into the tumor site, and the polar molecules in the tissue move at high speed under the action of the microwave field, rub against each other to generate heat, and rapidly heat up in the tumor. When it reaches about 60 degrees, the protein of cancer cells denatures and coagulates, resulting...

AI Technical Summary

Problems solved by technology

[0005] In addition, when the medical staff introduce the microwave ablation needle into the patient's body, there is no puncture positioning device, and the puncture angle cannot be accurately controlled during the puncture process. The error is large, and the puncture is likely to be inaccurate, which brings difficulties to the treatment of tumors. major inconvenience

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