Balloon catheter and electrification system

a balloon catheter and electrification system technology, applied in balloon catheters, medical science, surgery, etc., can solve problems such as thrombosis, intimal thickening, and possible problems, and achieve the effect of preventing energy transmission to other living body tissues more reliably
US20130296853A1Inactive Publication Date: 2013-11-07TERUMO KK
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
TERUMO KK
Publication Date
2013-11-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

A balloon catheter is provided with a balloon on the tip of a main shaft. The balloon catheter is provided with: protruding parts that are furnished on the outer surface of the balloon and protrude outward from the outer surface of the balloon at least when the balloon is expanded; and electrodes that are furnished on the leading edges of the protruding parts in the direction of protrusion and are capable of transmitting energy to living tissue. The leading edge electrodes can thereby be delivered near the desired site of treatment by thrusting the protruding parts into living tissue and, in this configuration, energy is transmitted to said treatment site.
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Description

TECHNICAL FIELD

[0001] The present invention relates to a balloon catheter for being inserted into a body cavity and treating a desired living tissue therein, and an energizing (electrification) system incorporating such a balloon catheter.BACKGROUND ART

[0002] There has been a finding that patients with intractable hypertension who find it difficult to improve their high blood pressure even by taking antihypertensive can expect their blood pressure to be lowered by severing or disrupting the sympathetic nerve around the renal artery to block neurotransmission.

[0003] It has been proposed in the art to percutaneously sever the sympathetic nerve around the renal artery using an ablation catheter. For example, Japanese Laid-Open Patent Publication No. 2008-515544 (PCT) discloses an ablation catheter for severing the sympathetic nerve around the renal artery, the ablation catheter including a helical electrode disposed around an inflatable balloon for contacting and energizing the inner wall...

Claims

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