Remote controlled catheter guide
First Claim
1. In a remote controlled catheter-guide comprising a thin and flexible tube, one end of which is fixed to a head and the other end of which is removably fixed to a control unit, said head comprising a coil spring secured at one end to said flexible tube and closed at its other end, said spring having spaced coils at least in its central zone, and an operating member sliding in the control unit and connected to an eccentric point of said closed end of said head by a flexible traction member;
- the improvement in which the end of the tube that carries the head is comprised by a coil spring having abutting coils covered by a fluid-tight casing, an inflatable microballoon surrounding said casing, and a duct connecting said microballoon to a channel in the control unit for the introduction of a fluid into the microballoon to inflate the microballoon.
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Accused Products
Abstract
The invention relates to a remote controlled catheter guide provided with a micro-balloon which comprises a head formed of a coil spring (4) mounted at the end (2) of a tube (1). When pulling on a flexible traction member (7) fastened to an eccentric point inside the end of the head, this head can be curved at will. The remote controlled catheter guide with micro-balloon is thus constituted of the assembly of elements forming a channel through which it is possible to locate the flexible traction (8) which is inflatable through its feeding duct (9) it is possible to carry out the pre-dilatation of stenosis so that afterwords a conventional catheter can be slid in place over the catheter-guide.
40 Citations
6 Claims
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1. In a remote controlled catheter-guide comprising a thin and flexible tube, one end of which is fixed to a head and the other end of which is removably fixed to a control unit, said head comprising a coil spring secured at one end to said flexible tube and closed at its other end, said spring having spaced coils at least in its central zone, and an operating member sliding in the control unit and connected to an eccentric point of said closed end of said head by a flexible traction member;
- the improvement in which the end of the tube that carries the head is comprised by a coil spring having abutting coils covered by a fluid-tight casing, an inflatable microballoon surrounding said casing, and a duct connecting said microballoon to a channel in the control unit for the introduction of a fluid into the microballoon to inflate the microballoon.
- View Dependent Claims (2, 3, 4, 5, 6)
Specification