Supercharge Your Innovation With Domain-Expert AI Agents!

A Voltage Source Characterization Method Based on Single-pin Measured Feedback

A voltage source and single-needle technology, which is applied in the parts of surgical instruments, medical science, surgery, etc., can solve the problem of not being able to accurately obtain the temperature field distribution, and achieve scientific and reliability, strong specificity, and clinical application sexual effect

Active Publication Date: 2019-07-26
BEIJING UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the temperature field distribution cannot be accurately obtained due to the voltage source in the prior art, the present invention proposes a voltage source characterization method based on single-needle measured feedback

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
  • A Voltage Source Characterization Method Based on Single-pin Measured Feedback
  • A Voltage Source Characterization Method Based on Single-pin Measured Feedback
  • A Voltage Source Characterization Method Based on Single-pin Measured Feedback

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] In this embodiment, the radiofrequency thermal ablation device is an ablation instrument RFA-I (Blade Co., Ltd., Beijing, China), the working electrode is an umbrella electrode RFA-1315, and the number of sub-electrodes is 13, of which the diameter of the main electrode is 0.9 mm, length 150mm, the sub-electrodes are evenly distributed around the main electrode, diameter 0.3mm, length 150mm, the angle between adjacent sub-electrodes is 55°, the temperature measuring needle used in the experiment is YWY-2 (Kang You Co., Ltd., Nanjing, China), a total of 9 pieces, with a diameter of 1.2mm and a length of 120mm. figure 1 Shown is a detailed view of a radiofrequency thermal ablation experimental device according to an embodiment of the present invention, which includes a radiofrequency ablation apparatus RFA-I and a temperature measuring nee...

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 discloses a voltage source characterization method based on single needle actual measurement feedback. The voltage source characterization method comprises the following steps: carrying out thermal ablation experiment by adopting a thermal ablation apparatus, thus obtaining a power distribution function; establishing a temperature field simulation model; carrying out feedback according to the error between the minimal single needle actual measurement temperature data and single needle simulated temperature data, thus obtaining the optimal equivalent resistance; and based on the power distribution function, calculating the voltage source in the thermal ablation process. According to the voltage source characterization method provided by the invention, feedback regulation is carried out based on the single needle actual measurement data, the accurate voltage source under different ablation conditions can be effectively guided out, thus the specific temperature field distribution needed by clinic is obtained, and the scientificity and reliability of the thermal ablation operation are improved.

Description

technical field [0001] The invention relates to the technical field of radio frequency thermal ablation temperature field simulation, in particular to a voltage source characterization method based on single-needle measured feedback. Background technique [0002] Liver tumors are one of the greatest threats to human life and the second leading cause of death in China. Therefore, effective treatment of liver tumors has become an urgent social problem. At present, radiofrequency thermal ablation technology has been widely used in hospitals due to its advantages of minimal invasiveness and remarkable therapeutic effect, and has become an effective method for treating human liver tumors. However, the quality of thermal ablation still mainly depends on the experience of clinicians. Lack of objective basis. In clinical operations, 54°C is often used as the boundary threshold for the thermal coagulation zone of liver tumors. Therefore, accurate characterization of the thermal abl...

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): A61B18/12
CPCA61B18/12A61B2018/00577A61B2018/00648A61B2018/00767A61B2018/00797
Inventor 高宏建王笑茹吴水才白燕萍
Owner BEIJING UNIV OF TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com