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Chemical ablation device and chemical ablation system

A chemical, guide wire technology, applied in medical science, heating surgical instruments, sensors, etc., can solve problems such as complicated surgery

Inactive Publication Date: 2017-08-18
JAPAN LIFELINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0026] However, surgery (ablation treatment including potential measurement before and after treatment) using the chemical ablation system described above is extremely cumbersome

Method used

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  • Chemical ablation device and chemical ablation system
  • Chemical ablation device and chemical ablation system
  • Chemical ablation device and chemical ablation system

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Embodiment Construction

[0063] Hereinafter, one embodiment of the present invention will be described using the drawings.

[0064] The chemical ablation device of this embodiment has:

[0065] An electrode-carrying guide wire 30 capable of measuring intracardiac potential, the electrode-carrying guide wire 30 has: a core wire 31; a coil spring 33 installed in the axial direction at the front end of the core wire 31; The front end portion except the front end portion; the metal shaft 37 is connected to the rear end side of the resin shaft 35; the connector 39 is connected to the rear end side of the metal shaft 37; the electrodes 361, 362 are attached to the front end of the core wire 31 The ring electrodes 363, 364, 365, 366 are installed on the outer periphery of the resin shaft 35; and the wires 381-386 are connected to each of the electrodes 361-366, and inserted through the inside of the resin shaft 35 and the metal shaft 37 And be connected with connector 39;

[0066] An integrally exchangeabl...

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Abstract

The present invention addresses the problem of providing a chemical ablation device that can perform, in a simple manner, a chemical ablation treatment including electric potential measurements before and after the treatment. This chemical ablation device comprises: an electrode-equipped guidewire (30) capable of measuring the intracardiac electric potential; an over-the-wire balloon catheter (40) having a guidewire lumen (415) into which the electrode-equipped guidewire (30) is inserted; a Y-shaped connector (50) connected to the rear end side of the balloon catheter (40), and having a guidewire port (51) and an extension port (53); and a hemostasis valve (60) connected to the guidewire port (51) of the Y-shaped connector (50), and provided with a side injection tube (65) that supplies ethanol to the guidewire lumen (415) of the balloon catheter (40). The ethanol supplied to the guidewire lumen (415) of the balloon catheter (40) is injected through an opening in a distal end tip (47).

Description

technical field [0001] The present invention relates to a chemical ablation device and a chemical ablation system that can be suitably used, for example, in an ethanol injection method into a Marshall vein. Background technique [0002] As a catheter therapy method for atrial fibrillation, a chemical ablation method (method of ethanol injection into Marshall's vein) in which arrhythmia-origin tissue is necrotic by administering ethanol into Marshall's vein has attracted attention (see Non-Patent Document 1 below). [0003] Here, the vein of Marshall (VOM) is a vein branching from the coronary sinus and detouring epicardially from the posterior wall of the left atrium toward the lateral wall. [0004] Non-Patent Document 1: Heart Rhythem. 2009November; 6(11): 1552-1558 (Ethanol Infusion in Vein of Marshall: Adjuctive Effects during Ablation of Atrial Fibrillation) [0005] As a method of intravenously administering ethanol to Marshall, it is conceivable to perform the follo...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61B5/0408A61B5/0478A61B5/0492A61B17/00A61M31/00A61B5/296
CPCA61B17/00A61B5/6847A61N1/056A61N1/06A61B2562/0209A61M2210/125A61B5/6851A61B18/06A61B2018/0022A61B2018/00351A61B2018/00577A61B2018/00839A61B2018/00982A61B5/283A61B5/25A61B5/291A61B5/296A61M25/10A61M25/09A61B17/00234A61M2025/091A61M2025/1056A61M2025/09175A61B2017/00243A61M31/00A61M2025/1061A61B2018/00172A61B2018/066A61M25/007A61M25/0662A61M39/06A61M2039/062
Inventor 光宗伦彦森谦二
Owner JAPAN LIFELINE CO LTD