Magnetic positioning microwave ablation needle

Abstract

A magnetic positioning microwave ablation needle comprises a needle point, a needle tube and a handle, wherein an interface fixing rack is installed on the handle, and the port position of the needle tube is sleeved with a magnetic positioning sensing coil. A needle tube cavity and a handle cavity are cooling water return cavities. A microwave energy transmitting tube is located at the needle point or is adjacent to the magnetic positioning sensing coil. The magnetic positioning sensing coil, a microwave lead and a water injection tube are arranged in the needle tube. One end of a magnetic positioning sensing coil lead is connected with the magnetic positioning sensing coil, and the other end of the magnetic positioning sensing coil lead is connected with an interface. One end of the microwave lead is connected with the microwave energy transmitting tube, and the other end of the microwave lead is connected with the interface. One end of the water injection tube is suspended at the port position of the puncture needle tube, and the other end of the water injection tube is connected with the interface of the water injection tube. A temperature sensing terminal is arranged at the top end of a temperature sensing lead interface. The magnetic positioning microwave ablation needle has the advantages of being simple in structure, convenient to operate and accurate in puncture positioning, facilitates puncture ablation while accurate target point positioning and puncture, decreasing hurt, saving time, facilitating operation and enabling puncture and target points to be displayed on a display screen in real time and the like.

Description

technical field [0001] The invention relates to a radiofrequency ablation needle medical device, in particular to a magnetic positioning microwave ablation needle. Background technique [0002] The microwave ablation needle is a kind of ablation needle that can accurately locate and ablate tumor puncture. The target point is between the magnetic positioning ablation needle and the magnetic emission field. The target is located in the magnetic field, and the imaging system displays the exact positional relationship between the ablation needle and the target. The existing ablation needles have problems with the positioning accuracy of the puncture ablation needle and the target point, which is often difficult to locate, easily causes bleeding, takes a long time, and easily damages surrounding tissues or organs. Although there are many large-scale positioning and navigation systems now, these navigation systems only find the target through the display system or device, and op...

AI Technical Summary

Problems solved by technology

Existing ablation needles have problems with the positioning accuracy of the puncture ablation needle and the target point, which is often difficult to locate, easily causes bleeding, takes a long time, and easily damages surrounding tissues or organs, etc.

Although there are many large-scale positioning and navigation systems now, these navigation systems only find the target through the display system or device, and operate in a visual environment, because the degree of technical operation varies from person to person. , the accuracy of the puncture varies from person to person, and repeated puncture positioning is required. It is not easy to standardize and unify the standard, and it is also very easy to cause damage to the patient in actual operation.

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