Microwave-type tumor ablating needle with temperature control function

A microwave ablation and functional technology, applied in the field of medical devices, can solve the problem of bypass temperature measurement increasing the difficulty of doctors' secondary positioning, and achieve the effect of relieving pain, shortening the recovery period, and reducing damage

Inactive Publication Date: 2017-02-22
庞茂英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Both of the above two judgment methods have certain deficiencies. The bypass temperature measurement increases the difficulty of the doctor's secondary positioning. B-ultraso

Method used

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  • Microwave-type tumor ablating needle with temperature control function
  • Microwave-type tumor ablating needle with temperature control function

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Such as Figure 1~2 Shown is the tumor microwave ablation needle with temperature control function that has both real-time tumor measurement and needle rod temperature measurement in this embodiment. The tumor microwave ablation needle with temperature control function in this embodiment includes an electrode head 1, a tapered needle 2 and a needle shaft 3, the tapered needle 2 is fixed on the front end of the needle shaft 3, and the rear of the needle shaft 3 The end is connected to the water tank 6 in the handle 14, and the water tank 6 is respectively connected with the water inlet end 14, the water outlet end 15 and the radio frequency connector 5. The electrode head 1 is arranged in the tapered needle head 2, and five thermal resistance temperature sensors 7, 8, 9, 10, 11 are arranged at intervals on the outer wall of the needle bar 3; The first stainless steel pipe 13, the first stainless steel pipe 13 is provided with a coaxial cable 12, the front end of the coa...

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Abstract

The invention relates to a microwave-type tumor ablating needle with a temperature control function, and belongs to the technical field of medical apparatuses. The microwave-type tumor ablating needle with the temperature control function comprises an electrode head, a conical needle head and a needle rod, wherein the electrode head is arranged inside the conical needle head; thermal resistor temperature sensors are arranged at intervals on the outer wall of the needle rod; a first stainless steel tube is arranged inside the needle rod; a coaxial cable is arranged inside the first stainless steel tube; the front end of the coaxial cable is connected with the electrode head; a choke ring is arranged on the external diameter of the coaxial cable; the back end of the coaxial cable is connected with a radio frequency connector; a water inlet cavity is formed in the first stainless steel tube; a water outlet cavity is formed in a second stainless steel tube. Under ultrasound guidance, the microwave-type tumor ablating needle provided by the invention directly punctures into a gland tumor area percutaneously and can complete ablation, temperature measurement and positioning at a time, so that real minimal invasion is achieved, damage to a surrounding normal tissue is reduced, pains of a patient are relieved, and the rehabilitating cycle is shortened.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, the invention relates to a tumor microwave ablation needle with temperature control function. Background technique [0002] With the development of tumor minimally invasive technology, microwave thermal ablation technology has gradually been recognized and widely used in the field of clinical medicine. Microwave ablation uses the thermal effect of microwaves to heat tumor tissue to denature and coagulate proteins to achieve the therapeutic purpose of eliminating tumors in situ. Under the guidance of B-ultrasound and CT images, direct percutaneous puncture to the tumor site realizes minimally invasive surgery in the true sense. At present, the microwave ablation products used clinically can basically achieve a spherical shape in terms of ablation morphology, but whether it can ensure the complete destruction of the tumor is undoubtedly a crucial parameter in the proc...

Claims

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Application Information

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IPC IPC(8): A61B18/18
CPCA61B18/1815A61B2018/00011A61B2018/00345A61B2018/00589A61B2018/00714A61B2018/00791A61B2018/1869
Inventor 庞茂英
Owner 庞茂英
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