Ablation catheter equipped with shape memory material

A technology for ablation of catheters and memory materials, applied in the field of catheters

Inactive Publication Date: 2013-12-11
MEDTRONIC ARDIAN LUXEMBOURG SARL
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ablation elements must have the ability to reach very small diameter delivery structures to avoid friction with the delivery sheath or inner diameter of the guide catheter

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
  • Ablation catheter equipped with shape memory material
  • Ablation catheter equipped with shape memory material
  • Ablation catheter equipped with shape memory material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Specific embodiments are now described with reference to the drawings, wherein like reference numerals indicate identical or functionally similar elements. In the following description, the terms "distal" and "proximal" are used in terms of position or orientation relative to the attending physician. "Distal" or "distally" refers to a location or direction away from the physician. "Proximal" or "proximally" means a location close to or in a direction towards the physician.

[0020] The following detailed description is merely exemplary in nature and is not intended to limit the invention or its applications and uses of the invention. Although the present invention has been described with respect to the treatment of blood vessels such as the renal arteries, coronary arteries and carotid arteries, embodiments of the present invention may also be used in any other bodily pathway deemed useful. Furthermore, there is no intention to be bound by any expressed or implied the...

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

An ablation catheter system is provided. The ablation catheter system includes a radio frequency generator, and an elongate catheter having an ablation element at the distal portion thereof. The ablation element has at least one electrode electrically connected to the radio frequency generator and a shape memory component formed from a shape memory material. The shape memory component transforms the ablation element between a first straightened delivery configuration and a second deployed configuration. Thermal energy transfer between the electrode and the shape memory component transforms the shape memory component into the deployed configuration and places the electrode of the ablation element into contact with tissue at a treatment site. The transformation temperature of the shape memory material is a temperature above body temperature such that the transformation of the shape memory component is not activated by mere placement within the body but rather is activated by heat transfer from the electrodes.

Description

technical field [0001] The present invention relates generally to catheters and, in particular, to ablation catheters. Background technique [0002] Tissue ablation is used in many medical procedures to treat patients. For example, ablation may be used in cancer treatment to remove tissue, or in patients with arrhythmias to modify tissue as a therapeutic means of stopping the conduction of electricity through tissue. Ablation is typically performed by delivering energy, such as electrical energy, through one or more electrodes, causing tissue in contact with the electrodes to be heated to an ablation temperature. [0003] In general mammalian organ function occurs by the transmission of electrical impulses from one tissue to another. Interference in the transmission of such electrical impulses can lead to organ dysfunction. One particular area where the transmission of electrical impulses is critical for proper organ function is the heart. The heart's normal sinus rhythm...

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): A61B18/14A61B18/00A61B17/00
CPCA61B18/1492A61B2017/00092A61B2017/00867A61B2018/00404A61B2018/00434A61B2018/00577A61B2018/00797A61B2018/00815A61B2018/00821A61B2018/1435A61B2018/00511
Inventor K·莫奇
Owner MEDTRONIC ARDIAN LUXEMBOURG SARL
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