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An electrode catheter and electrode technology, used in catheters, medical science, surgery, etc., can solve the problems of the collapse of the injection tube lumen, interfere with the injection tube, damage the fluid circulation, etc., and achieve the effect of high strength

Active Publication Date: 2021-09-21
JAPAN LIFELINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the electrode catheter described in Patent Document 2, when the rotating operation part is operated, the rotating operation part, operation cables, and lead wires may interfere with the infusion tube, or the infusion tube may be twisted, or the lumen of the infusion tube may collapse to impair the flow of liquid. sex

Method used

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Effect test

no. 1 approach ＞

[0078] figure 1 ~ Figure 5 ( Figure 5A as well as Figure 5B ) The electrode catheter 100 of this embodiment shown in ) is an electrode catheter used for the diagnosis or treatment of arrhythmia.

[0079] The electrode catheter 100 includes: an insulating tube member 10 having a flexible portion at the distal end and forming eight lumens 101 to 108 arranged at equal angular intervals along the circumferential direction; and a handle 20 attached to the tube member. The base end portion 12 of 10 has a handle main body 21 and a rotary operation portion 23 equipped with cable fixing parts 231, 232; figure 1 A part of the illustration is omitted); the front-end chip 35 is installed on the front end of the pipe part 10; 20 wires 41, their respective front ends are connected to 20 electrodes 31 and extend axially inside the pipe part 10; The device 50 is arranged on the base end side of the handle 20 and has a terminal not shown to which the respective base ends of the lead wires...

no. 2 approach ＞

[0127] Figure 6 ~ Figure 11 The electrode catheter 200 of this embodiment shown is an electrode catheter with a lumen for use in the diagnosis or treatment of arrhythmia.

[0128] The electrode catheter 200 includes: an insulating tube member 15 having a flexible portion at the front end and forming a central lumen 150 serving as a lead lumen and eight sub-lumens 151 to 158 arranged at equal angular intervals around it; Handle 20, it is installed on the base end portion 17 of this pipe member 15 and has handle main body 21 and has the rotating operation part 23 that has cable fixing member 231,232; The periphery of the front part (in the Figure 6 A part of the illustration is omitted in the figure); the front-end chip 37 is installed on the front end of the pipe part 15; 20 wires 41, their respective front ends are connected to 20 electrodes 31, and extend along the axial direction in the inside of the pipe part 15; The connector 50 is arranged on the base end side of the ...

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Abstract

The object of the present invention is to provide an electrode catheter. When operating the rotating operation part, the rotating operation part and the operation cable do not interfere with the lead wires, and there is no abnormal sound during operation, and the lead wires are not damaged or broken even if the operation is repeated. . The electrode catheter of the present invention includes: a tube member (10), a handle (20) having a rotating operation part (23), an electrode (31) attached to the tube member (10), a lead wire (41), and an electrode connector (50) And operation cables (71, 72), the base end portion (12) of the pipe member (10) is inserted into its inside from the front end of the handle (20), and the inside of the handle (20) crosses the rotation operation part (23) to the base Extending in the end direction, side holes (111, 115) are formed on the pipe wall of the base end (12) of the pipe part (10), and the base ends of the action cables (71, 72) pass through the side holes to the pipe part ( 10), the base ends of the operation cables (71, 72) are fixed to the cable holders (231, 232).

Description

technical field [0001] The present invention relates to electrode catheters. Background technique [0002] In the conventional electrode catheter, the operation cable for deflecting the distal end and the proximal end of the tube member in which the lead wire of the electrode extends are inserted into the interior from the distal end side of the handle, and the operation cable and the electrode lead are inserted into the inside. The wire extends from the base end of the tube member opening near the front end of the handle to the inside of the handle. [0003] Here, the proximal end of the operation cable is fixed to the cable fixing member of the rotary plate (rotary operation part) for the front end deflection operation, and the proximal end of the lead wire passes through one side or the other side of the rotary operation part to the The inside of the handle extends, and the base end of the wire is connected to an electrode connector located on the base end side of the ro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/092A61B18/14A61B5/296
CPCA61B5/6852A61B2018/1467A61B18/1492A61B2018/0091A61B34/71A61B2218/002A61B5/25A61B5/283A61B5/287A61B5/291A61B5/296A61B2562/0209
Inventor 桝田拓也
Owner JAPAN LIFELINE CO LTD
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