Microwave ablation needle and microwave ablation instrument capable of feeding back puncture pressure and tracing temperature field

Abstract

The invention discloses a microwave ablation needle and a microwave ablation instrument capable of feeding back puncture pressure and tracing temperature field. The microwave ablation needle comprisesa needle head, a needle rod, and a handle. The needle head is connected with the front end of the needle rod. The center of the needle head is connected with a pressure probe in a through manner. Thepressure probe is connected with a coaxial cable through a pressure-sensitive material. One end of the coaxial cable is in the needle rod, and the other end is connected with a signal interface. Theperiphery of the coaxial cable is provided with a water inlet pipe, a water outlet pipe, and a microbubble water pipe. One end of the water inlet pipe is communicated with one end of the water outletpipe, and the other ends are communicated with a water inlet crossing and a water outlet crossing. One end of the microbubble water pipe is connected with a microbubble water outlet, and the other endis connected with a microbubble pouring crossing. The periphery of the needle head is provided with a thermistor. The front end of the needle rod is provided with an electrode head. The thermistor and the electrode head are connected with the coaxial cable. The microwave ablation needle can determine whether a needle tip has punctured an enveloped tissue, and an effective action range of the ablation needle can be determined on an ultrasonoscopy.

Description

technical field [0001] The invention relates to a microwave ablation needle and a microwave ablation treatment apparatus, in particular to a microwave ablation needle and a microwave ablation apparatus capable of feeding back puncture pressure and trace temperature field, belonging to the field of medical equipment. Background technique [0002] When the microwave ablation needle is performing puncture treatment, when the passing biological tissue is a capsule structure, it will not be punctured under a small force, but will only be displaced under the pressure of the microwave needle. It is difficult to judge whether the microwave needle has passed through the capsule on the image, which brings safety hazards to the treatment. [0003] At the same time, the temperature measurement function of the traditional microwave ablation needle can only measure the temperature at the position of the temperature measurement component, and cannot judge the temperature distribution or te...

AI Technical Summary

Problems solved by technology

[0002] When the microwave ablation needle is performing puncture treatment, when the passing biological tissue is a capsule structure, it will not be punctured under a small force, but will only be displaced under the pressure of the microwave needle. It is difficult to judge whether the microwave needle has passed through the capsule on the image, which brings safety hazards to the treatment

[0003] At the same time, the temperature measurement function of the traditional microwave ablation needle can only measure the temperature at the position of the temperature measurement component, and cannot judge the temperature distribution or temperature distribution area in the biological tissue, and the operator cannot adjust the microwave ablation more conveniently. Power required for ablation

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