EP0254885A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Remote controlled catheter guide
Assignee: SARCEM SA
•
Filing: 1987-06-29
•
Granted: —
•
Expires: 2007-06-29
Abstract
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 of the extremity (2) of a tube (l). When pulling on a flexible traction member (7) fastened to an excentered 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 member (7) as well as to feed a contrast liquid. Due to the provision of the micro-balloon (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.
Inventors
- 👤 Philippe Bonello
- 👤 Maurice Jeanmonod
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 18:32
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/09; A61M25/09041; A61M25/09016; A61M25/09033; A61B; A61B17/00; A61B17/22; A61B2017/22001; A61M2025/09008
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
152 words
Remote controlled catheter-guide comprising a thin and flexible tube, one extremity of which is fixed to the head of the catheter-guide, formed by a coil spring closed out its fore end and provided with a central zone having disjointed coils ; whereas the other end of the tube is removably fixed to a control unit ; and comprising further a control device formed of an operating member sliding in the control unit and connected to an excentered point of the free end of the head of the catheter-guide through a flexible traction member ; characterized by the fact that the extremity of the tube carrying the head is constituted by a coil spring having jointed coils and provided with a tight coating ; and by the fact that this terminal position of the tube is surrounded by an inflatable micro-balloon connected through a duct to a channel provided in the control unit.
Claim 2
Dependent Claim
152 words
Remote controlled catheter-guide comprising a thin and flexible tube, one extremity of which is fixed to the head of the catheter-guide, formed by a coil spring closed out its fore end and provided with a central zone having disjointed coils ; whereas the other end of the tube is removably fixed to a control unit ; and comprising further a control device formed of an operating member sliding in the control unit and connected to an excentered point of the free end of the head of the catheter-guide through a flexible traction member ; characterized by the fact that the extremity of the tube carrying the head is constituted by a coil spring having jointed coils and provided with a tight coating ; and by the fact that this terminal position of the tube is surrounded by an inflatable micro-balloon connected through a duct to a channel provided in the control unit.
Claim 3
Dependent Claim
31 words
Catheter-guide according to claim l characterized by the fact that the extremity of the tube formed by the coil spring contain a metallic rod giving it a greater rigidity against bendings.
Claim 4
Dependent Claim
27 words
Catheter-guide according to claim l characterized by the fact that the tube is outwardly coated with a plastic envelope on a part at least of its length.
Claim 5
Dependent Claim
38 words
Catheter-guide according to claims l and 2 characterized by the fact that the extremity of the tube formed by the coil spring is fit on a sleeve, this latter being partly driven in the end of the tube.
Claim 6
Dependent Claim
29 words
Catheter-guide according to claim l and 2 characterized by the fact that the extremity of the tube formed by a spring is welded on the end of the tube.
Claim 7
Dependent Claim
37 words
Catheter-guide according to one of the claims l to 4 characterized by the fact that the coil spring of the head is fit on a sleeve, said latter being partly driven into the end of the tube.
Claim 8
Dependent Claim
29 words
Catheter-guide according to one of claims l to 5 characterized by the fact that the coil spring of the head is welded onto the spring extremity of the tube.
Claim 9
Dependent Claim
37 words
Catheter-guide according to one of claims l to 6 characterized by the fact that the coil spring of the head and the coil spring forming the extremity of the tube are made of one piece of manufacture.
Claim 10
Dependent Claim
27 words
Catheter-guide according to one of claims l to 8 characterized by the fact that the control unit has a cutter intended to cut the flexible traction member.
Claim 11
Dependent Claim
28 words
l0. Catheter-guide according to claim l characterized by the fact that the channel is formed by an envelope concentric to the tube the end of which the micro-balloon.
Claim 12
Dependent Claim
47 words
Catheter-guide according to claim l0 characterized by the fact that the rear end of the envelope is tightly mounted on the control unit whereas the fore end of the micro-balloon is tightly mounted on the plastic coating of the coil spring forming the extremity of the tube.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.