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

Electrode catheter

A probe and electrode technology, applied in the field of electrode probes, can solve problems such as operability damage, and achieve the effect of excellent operability

Active Publication Date: 2015-06-03
JAPAN LIFELINE CO LTD
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, if the core wire 124 extending in the third lumen 134 is lengthened, the operability of the probe which can be deflected at the tip is impaired.

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
  • Electrode catheter
  • Electrode catheter
  • Electrode catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] Hereinafter, one embodiment of the electrode probe of the present invention will be described with reference to the drawings.

[0051] Figure 1 to Figure 5The electrode probe 100 of the present embodiment shown includes: a probe shaft 10 having a flexible portion 10A having a multi-lumen structure at the front end 11; a control handle 20 connected to the base end side of the probe shaft 10; The needle front end portion 30 is connected to the front end side of the probe shaft 10, and a core wire 35 made of a shape memory alloy extends inside the insulating tube 33, and is formed in a ring shape; nine ring electrodes 41, which Be installed on the outer periphery of probe front end part 30; Front end electrode 42, it is installed on the front end of probe front end part 30; The inside of the front end portion 30 (insulating tube 33) and the inside of the probe shaft 10 extend to reach the inside of the control handle 20; The interior of the shaft 10 extends, its front e...

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 electrode catheter which is capable of tip deflection operation and which comprises: a catheter shaft (10) that has a flexible part (10A) on a distal end portion (11); a control handle (20); a catheter distal end portion (30) that is connected to the distal end side of the catheter shaft (10) and has a core wire (35) made of shape memory alloy extending inside an insulating tube (33); multiple ring-shaped electrodes (42); lead wires (50) that are connected to each of the ring-shaped electrodes (42); and an operating wire (60) for deflecting the flexible part of the catheter shaft (10), a base end portion (352) of the core wire (35) and a distal end portion (61) of the operating wire (60) being joined together. According to this electrode catheter, sufficient space can be reserved inside the catheter shaft for extending multiple lead wires.

Description

technical field [0001] The invention relates to an electrode probe with a deflectable front end. Background technique [0002] As a medical device used for diagnosing or treating arrhythmia of the heart, there is known an electrode probe comprising: a probe shaft having a flexible portion at the front end; connection; a probe front end, which is connected to the front end side of the probe shaft; a plurality of annular electrodes, which are installed on the outer periphery of the probe front end; and an operation wire, which is used to make the flexible part of the probe shaft bending. [0003] In addition, as an electrode probe for measuring potentials in the pulmonary vein of the heart and the like, an electrode probe having a ring-shaped probe tip has been proposed (for example, refer to Patent Document 1). By forming the tip portion of the probe into a ring shape, the inner peripheral portion of the blood vessel can be measured simultaneously. [0004] Figure 6 It is...

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): A61B5/0408A61B1/00A61B5/0478A61B5/0492A61M25/092A61B5/296
CPCA61B5/6857A61B5/6876A61B18/1492A61M25/0133A61B5/287
Inventor 桝田拓也
Owner JAPAN LIFELINE CO LTD