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

Catheter for treating irregular heart pulse

An arrhythmia and catheter technology, which is applied in the field of catheters for arrhythmia treatment and can solve problems such as inability to perform correct temperature detection.

Inactive Publication Date: 2005-09-28
TORAY IND INC
View PDF1 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to control and maintain this temperature, a temperature sensor is provided in the balloon, but there is a problem that accurate temperature detection may not be possible depending on the structure or arrangement of the temperature sensor.

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
  • Catheter for treating irregular heart pulse
  • Catheter for treating irregular heart pulse
  • Catheter for treating irregular heart pulse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Hereinafter, in order to better understand the present invention, first, the embodiments of the present invention will be described in detail.

[0039] Figure 1 ~ Figure 3 In , an example of the catheter for treating arrhythmia of the present invention is shown.

[0040] In the catheters shown in these figures, an inflatable and deflated balloon 2 is attached to the distal end portion of a catheter shaft 1 . The catheter shaft 1 is composed of a double-tube structure of an inner cylindrical shaft 3 and an outer cylindrical shaft 4 , and the inner cylindrical shaft 3 is inserted into the outer cylindrical shaft 4 so as to be slidable in the axial direction. The inner cylinder shaft 3 and the outer cylinder shaft 4 are respectively made of X-ray opaque and antithrombotic resin material, and the front ends of the two shafts 3, 4 are respectively connected with radiation shielding metal tubes 3a, 4a. The front end of the above-mentioned balloon 2 is fixed on the metal tu...

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 catheter for treating irregular heart pulse comprises a catheter shaft of a double-cylinder structure where an inner cylinder shaft is slidably inserted in an outer cylinder shaft, a balloon installed so as to straddle between the tip portion of the inner cylinder shaft and the tip portion of the outer cylinder shaft, a pair of high frequency current-carrying electrodes of which at least one electrode is provided inside the balloon, and a temperature sensor for monitoring the temperature in the balloon. The front edge portion of the balloon at least in a deflated state is projected to more forward than the tip portion of the inner cylinder shaft. Alternatively, a tube that is more flexible than the inner cylinder shaft is provided on the tip portion of the inner cylinder shaft.

Description

technical field [0001] The present invention relates to a catheter for treating arrhythmia, and more specifically, to a catheter for treating arrhythmia in which a balloon is brought into close contact with a source of an arrhythmia and local cauterization is performed by high-frequency electric heating. Background technique [0002] In recent years, it has been found that atrial fibrillation can be prevented by electrically isolating the source of arrhythmia (atrial fibrillation) since the source of arrhythmia (atrial fibrillation) often exists in the pulmonary vein. Based on this discovery, the following treatment method has been popularized: a catheter made of a metal electrode consisting of a small piece of 4mm is brought into point-like contact with the pulmonary vein ostium that joins the pulmonary vein and the wall of the left atrium, and high-frequency electric current is applied. The cauterization (ablation) is performed repeatedly while sequentially moving along th...

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): A61B18/00A61B18/14
CPCA61B2018/00214A61B2018/0022A61B2018/00357A61B2018/1435A61B18/1492A61B2018/00351A61B2018/00029A61B18/12
Inventor 山崎善治田中畅彦高冈元纪
Owner TORAY IND INC
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com