Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Measurement method of tip power of microwave ablation antenna

A technology of microwave ablation and measurement method, which is applied in the direction of electric power measurement by thermal method, which can solve problems such as medical mistakes or accidents, different power, incomplete ablation, etc., and achieve the effect of data science and error reduction

Active Publication Date: 2017-02-01
BEIJING UNIV OF TECH
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the later data processing and analysis process, it was found that under the same environment, the same equipment and the same conditions, the same output power will produce different ablation areas, and it can be deduced that under the same output power conditions, the power loss is different. The actual power applied to the tissue is different, resulting in different ablation areas
If this data is always used as the quantitative standard in clinical application, it will cause incomplete ablation or damage to normal tissues, resulting in medical mistakes or accidents

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Measurement method of tip power of microwave ablation antenna
  • Measurement method of tip power of microwave ablation antenna
  • Measurement method of tip power of microwave ablation antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In this embodiment, the microwave ablation experiment is carried out in a large enough imitation tissue phantom. The present invention adopts an axisymmetric microwave antenna, which can ensure that the spatial temperature fields are aligned along the microwave antenna axis.

[0038] This measurement process is based on the microwave generator providing ablation energy, which is then transmitted to the microwave ablation antenna through the transmission line and applied to the tissue. The microwave generator selected for this measurement is the MTC-3 type microwave generator produced by Nanjing Qinghai Microwave Electronics Research Institute. The microwave generator can generate microwaves of 2450±50MHz and output adjustable power of 0-100w. , The antenna is launched by slot, the slot width is 1.5mm, and the distance from the front end is 13mm. The microwave system is equipped with a low-loss coaxial cable transmission line connected to a rigid microwave radiating ante...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a measuring method for microwave ablation antenna pointed end power. Based on a physical platform formed by a microwave generator, a temperature measurement needle, an operating platform, a data acquisition instrument and a computer, the method includes the steps of setting a temperature measurement point distribution area, opening the microwave generator, obtaining temperature values of all temperature measurement points within n seconds before heating, solving the reciprocal of the temperature on each temperature measurement point to time, determining a cylindrical half shaft section, calculating the power value Qr of each temperature measurement point on the unit volume in the cylindrical half shaft section, and integrating the power values of the temperature measurement points on the unit volumes in a microwave generator effective temperature field to obtain the microwave ablation antenna pointed end power, wherein the microwave generator effective temperature field refers to a cylinder formed in the mode that the cylindrical half shaft section winds an ablation antenna, any Qr passing a half section of a center shaft is the same as the Qr of a corresponding point on the cylindrical half shaft section in the microwave generator effective temperature field, and the microwave ablation antenna pointed end power is full net power eliminating loss power in output power.

Description

technical field [0001] The invention relates to the field of measuring methods for medical supplies, in particular to a method for measuring the power of a microwave ablation antenna tip. Background technique [0002] In today's biomedical treatment, thermal ablation has become an indispensable and effective treatment method in clinical applications, especially for the treatment of liver tumors, with more significant curative effects. [0003] The advantages of minimally invasive, fast, and effective ablation are the main reasons for its wide application in clinical practice. In order to avoid this technique being too dependent on the experience of clinicians, the quantitative reference of scientific standards is an indispensable key step in formulating surgical planning. . At present, we have strengthened the quantitative standard through a large number of in vitro and animal experiments, and have obtained preliminary results, which have played a certain role in clinical p...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01R21/02
Inventor 南群聂晓慧刘有军翟飞郭雪梅
Owner BEIJING UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products