US 8,798,766 B2Granted

Neurostimulation catheter

AssigneeVygon

InventorsJean-Luc Carrez, Valéry Dalle, Pierrick Guyomarc'h, Claire Dulong, Cécile Gadenne

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Abstract

The conductor is composed of at least one layer (2) of a material (A) that conducts electricity, said layer being applied to the outer face of the lateral wall of the tube (1) and being insulated by a non-conductive sheath (B) applied to the layer, In said conductive layer (2) forming, at the distal end of the tube, a distal ring (4) that matches the shape of the rounded distal end of N the tube and is not covered by the insulating sheath (B) of the layer, so as to form a neurostimulation contact, and said conductive layer (2) forming, at the proximal end of the tube, a proximal ring (3) that is not covered by the insulating sheath (B), so as to form an electrical connection.

Claims18

Dependent claims

A neurostimulation catheter formed by a flexible tube of a non-electrically conducting material, a distal end of which is rounded,

said neurostimulation catheter comprising an electric conductor which extends over a length of the flexible tube in order to conduct an electric stimulation current from one end of said flexible tube to the other end of said flexible tube, said electric conductor being formed by at least one layer of an electrically conducting material applied on an outer face of a sidewall of the flexible tube and a non-conducting cladding applied onto the electric conductor,
said electric conductor forming at a distal end of the flexible tube a distal ring which fits a rounded shape of the distal end of the flexible tube and which is not covered by the non-conducting cladding so as to form a neurostimulation contact, and said electric conductor forming at a proximal end of the flexible tube a proximal ring which is not covered by the non-conducting cladding in order to achieve electric connection, and
said non-conducting cladding extending along the whole length of the electric conductor between said distal ring and said proximal ring,
said neurostimulation catheter further comprising a split conducting tube slipped onto the proximal end of the flexible tube in order to achieve electric connection with the proximal ring, wherein a wall of the split conducting tube is cut out longitudinally in order to form at least one elastic tab intended for providing electric contact between the proximal ring of the conducting layer and an electric wire maintained in contact with the tab.

1 more element

A neurostimulation catheter formed by a flexible tube of a non-electrically conducting material, a distal end of which is rounded,

said neurostimulation catheter comprising an electric conductor which extends over a length of the flexible tube in order to conduct an electric stimulation current from one end of the flexible tube to the other end of the flexible tube, said electric conductor being formed by at least one layer of an electrically conducting material applied on an outer face of a sidewall of the flexible tube, and a non-conducting cladding applied onto the electric conductor,
said electric conductor forming at a distal end of the flexible tube a distal ring which fits a rounded shape of the distal end of the flexible tube and which is not covered by the non-conducting cladding so as to form a neurostimulation contact, and
said electric conductor forming at a proximal end of the flexible tube a proximal ring which is not covered by the non-conducting cladding in order to achieve electric connection, and
said non-conducting cladding extending along the whole length of the electric conductor between said distal ring and said proximal ring,
the neurostimulation catheter further including a proximal base equipped with means for maintaining the catheter in the proximal base and with means for providing electric connection between an electric power supply conductor and the electric conductor of the neurostimulation catheter, and being capable of connecting the neurostimulation catheter with a device supplying a solution,
wherein the proximal base of said neurostimulation catheter includes a tubular body onto one end of which a nut may be screwed, in order to provide compression of an elastomeric sleeve housed in the nut or in the tubular body and crossed by the flexible tube when said flexible tube is introduced into the proximal base through said end of the tubular body, another end of the tubular body including a conical inlet passage for connecting an end piece of a solution supplying device.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/161,979Filed 15 Jan 2007
Priority: FR 06 009482 Feb 2006
Published: US 2009/0012578 A18 Jan 2009
Granted: 5 Aug 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61N 1/0551
For implantation or insertion into the body, e.g. heart electrode: spinal or peripheral nerve electrodes
H01R 13/025
Contact members: formed by the conductors of a cable end
H01R 2201/12
Connectors or connections adapted for particular applications: for medicine and surgery
A61N
Electrotherapy