Microwave power source and microwave ablation therapeutic equipment thereof

A technology of microwave power and microwave ablation, which is applied in microwave heating, medical science, surgery, etc., can solve problems such as difficult to control power output state, affect the clinical treatment effect of tumors, poor safety, etc., achieve low power consumption and prolong the service life of the instrument , the effect of fast frequency

Active Publication Date: 2008-10-15
CANYON MEDICAL INC
View PDF0 Cites 48 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The start-up voltage of the magnetron needs a high-voltage power supply above 1200V, which is poor in safety during treatment.
In addition, the more important thing is that the output power of the magnetron will produce a w

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
  • Microwave power source and microwave ablation therapeutic equipment thereof
  • Microwave power source and microwave ablation therapeutic equipment thereof
  • Microwave power source and microwave ablation therapeutic equipment thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

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

[0031] figure 1 It is a schematic block diagram of an all-solid-state microwave power source. The microwave signal generator 21 produces a microwave modulation signal of 915 ± 2% MHz, which is sent to the power control time adjustment circuit 22. The power control time adjustment circuit 22 controls the output power according to the received power control CON signal. After adjustment, the impedance matching unit 23 performs 50Ω impedance matching on the adjusted power signal. The driving circuit 24 pre-amplifies the signal sent by the impedance matching device 23 . The power splitter 25 divides the power signal into two channels and sends it to the power amplifiers 26-1 and 26-2 for amplification, and the amplified power is synthesized by the power combiner 27, and the synthesized power passes through the coaxial output terminal of t...

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 microwave power source and a microwave ablation therapeutic instrument, which relate to a full-solid-state microwave power generating circuit and a microwave therapeutic instrument circuit. The microwave power source adopts a full-solid-state circuit close-loop control to achieve stable microwave power output and continuous adjustable microwave power. The microwave energy can generate enough penetration depth in human tissue to enlarge the ablation range. The ablation range of 915 MHz microwave frequency band is larger than that of 2,450 MHz microwave frequency band, so that the 915 MHz microwave frequency band is more suitable for ablation therapy. The microwave power source comprises a microwave signal generator, a power control time adjusting circuit, an impedance matcher, a drive circuit, a power splitter, a plurality of power amplifiers, a power mixer, an isolator and a power tracking and detecting circuit. The microwave ablation therapeutic instrument is constituted by the microwave power source and a microwave ablation pin under control of a microprocessor.

Description

technical field [0001] The invention relates to a microwave power generating circuit and a microwave treatment instrument, in particular to an all-solid-state microwave power source and a microwave ablation treatment instrument. Background technique [0002] Microwave ablation for tumor treatment is a minimally invasive technique emerging in the 1990s. Under the guidance of images, it directly inserts the microwave ablation puncture needle into the patient's tumor site, transmits microwave energy into the tumor tissue through the microwave ablation puncture needle, and generates a high temperature of 60-120 degrees Celsius, causing the tumor tissue to coagulate in a short time necrosis, so as to achieve the purpose of treatment. [0003] At present, the operating frequency of microwave ablation instruments at home and abroad is 2450MHz. The maximum penetration depth of 2450MHz microwave in aqueous tissue is 1.7cm. This feature directly limits the range of thermal coagulat...

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
IPC IPC(8): A61B18/18H05B6/64
Inventor 梁萍鲍成于晓玲江荣华王毅董宝玮
Owner CANYON MEDICAL INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap