Catheter

US6533783B1 · kind B1 · utility

Assignee

• Biotronik Mess -und Therapiegeraede GmbH & Co. Ingenieurbuero Berlin · DE

Inventor

• Thomas Tollner · Berlin, DE

Key dates

• Filing date: Jul 12, 2000
• Grant date: Mar 18, 2003
• Expiry date: Jul 26, 2020

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M25/0136
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

In order to ensure a simple structure and precise handling in the case of a catheter, in particular a bi- or unidirectionally deflectable ablation catheter, comprising a flexible guide tube (3) which extends from a gripping element (1) and which terminates in a catheter tip (6) for treating or investigating a hollow organ in a body, wherein provided for deflection purposes there is at least one draw wire (13a; 13b) which extends within the flexible guide tube (3) and which is fixed to the tip (6) of the catheter and which is movable by way of a transmission means disposed in the gripping element (1) for converting the rotary movement of a manual control wheel (7) into a longitudinal movement for the draw wire (13a; 13b), it is proposed that provided as the transmission means is a toothed drive pulley (8) which is coupled to the control wheel (7) and which correspondingly engages into the teeth of a toothed belt (9) which is guided over guide means within the gripping element (1) in such a way that the draw wire (13a; 13b) is pullingly longitudinally movable by way of an entrainment member (12a; 12b) fixed to a flank side (11a; 11b) of the toothed belt (9).