Unlock instant, AI-driven research and patent intelligence for your innovation.

Microwave energy transfer component for electrosurgical apparatus

An electrosurgical and microwave technology, applied in the parts, electrical components, connecting devices of surgical instruments, etc., can solve the problems of multiple reflections of power loss and improper heating of the device

Active Publication Date: 2019-05-03
CREO MEDICAL LTD
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Changes in impedance can cause power loss and multiple reflections within the device
Such reflections may cause undue heating of the device

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 energy transfer component for electrosurgical apparatus
  • Microwave energy transfer component for electrosurgical apparatus
  • Microwave energy transfer component for electrosurgical apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 1 is a schematic diagram of an electrosurgical device 10 that provides a context for the present invention.

[0038] The electrosurgical device 10 includes an EM generator 12 that generates EM energy (microwave and / or radio frequency energy). The generator 12 is connected to a converter 20 . Transformer 20 is a microstrip impedance transformer 100, hereinafter referred to FIG. 2 to Figure 4 described in more detail. The converter 20 is located at the junction between the generator 12 and the energy delivery cable 30 .

[0039] In this example, the energy delivery cable 30 is a coaxial transmission line 14 . Coaxial transmission line 14 includes an inner conductor surrounded by a dielectric material that separates the inner conductor from the outer conductor. The coaxial transmission line 14 includes internal channels, eg, internal channels within the inner conductor for transporting material (eg, saline or instruments) along the cable 30 . The hollow condu...

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

A microstrip impedance transformer that permits efficient (i.e. low loss) coupling of a microwave feed line (e.g. a conventional 50 [Omega] coaxial cable) to an instrument cable, where the instrumentcable has a lower impedance (e.g. in the range 12 to 14 [Omega]) and includes an internal passageway. The microstrip impedance transformer is configured to perform impedance matching between the microwave feed line and the instrument cable in a manner that does not adversely affect a separate feed, e.g. for delivering fluid, into the internal passageway.

Description

technical field [0001] The present invention relates to electrosurgical devices comprising electrosurgical instruments for non-invasive or percutaneous insertion into a treatment site to enable delivery of electromagnetic radiation to biological tissue. In particular, the present application relates to means for efficiently coupling energy between an electrosurgical generator and an electrosurgical instrument. Background technique [0002] Electrosurgical instruments are used to deliver electromagnetic (EM) energy, particularly microwave and radio frequency energy, to biological tissue for purposes such as cutting and / or cauterizing the biological tissue. [0003] Generally, an apparatus for delivering EM energy to body tissue includes a generator containing a source of EM energy, and an electrosurgical instrument connected to the generator for delivering energy to biological tissue. [0004] EM energy is typically supplied from the EM generator to the electrosurgical instr...

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 Applications(China)
IPC IPC(8): A61B18/18
CPCA61B18/1815A61B2018/1823A61B2018/1892H01P5/08A61B2018/00178A61B2018/00601A61B2018/00595A61B2018/00077A61B2018/00101A61B2018/00577A61B2018/00755
Inventor C·P·汉考克M·怀特S·普雷斯顿
Owner CREO MEDICAL LTD
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