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1. WO2000040293 - BENT CARDIAC LEAD WITH SHAPE MEMORY TORQUE COIL

Publication Number WO/2000/040293
Publication Date 13.07.2000
International Application No. PCT/US2000/000215
International Filing Date 05.01.2000
Chapter 2 Demand Filed 04.08.2000
IPC
A61N 1/05 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
02Details
04Electrodes
05for implantation or insertion into the body, e.g. heart electrode
CPC
A61N 1/056
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
02Details
04Electrodes
05for implantation or insertion into the body, e.g. heart electrode
056Transvascular endocardial electrode systems
A61N 1/057
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
1Electrotherapy; Circuits therefor
02Details
04Electrodes
05for implantation or insertion into the body, e.g. heart electrode
056Transvascular endocardial electrode systems
057Anchoring means; Means for fixing the head inside the heart
Applicants
  • INTERMEDICS, INC. [US/US]; 4000 Technology Drive Angleton, TX 77515, US
Inventors
  • FISCHER, Elmar, R., Sr.; US
  • ISKANDER, Daoud, R.; AU
Agents
  • VIKSNINS, Ann, S.; Schwegman, Lundberg, Woessner & Kluth P.O. Box 2938 Minneapolis, MN 55402, US
Priority Data
09/225,81205.01.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BENT CARDIAC LEAD WITH SHAPE MEMORY TORQUE COIL
(FR) SONDE CARDIAQUE COURBEE A MEMOIRE DE FORME D'UNE BOBINE A COUPLE
Abstract
(EN)
In one aspect of the present invention, a cardiac lead is provided that includes a connector for coupling to a cardiac stimulator that has a first rotatable member, and a tubular insulating sleeve that has a first end coupled to the connector and a second end. A tip assembly is coupled to the second end. The tip assembly has a second rotatable member. A coiled wire is coupled between the first rotatable member and the second rotatable member. The coiled wire is composed of a shape-memory material and is operable to transmit torque between the first rotatable member and the second rotatable member. Where the lead is provided with a bend, the shape-memory coiled wire retains a straight set, enabling smooth rotation of a fixation corkscrew without precession of the lead tip._________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
(FR)
Selon un aspect de l'invention, une sonde cardiaque comprend un connecteur à coupler à un stimulateur cardiaque qui a un premier élément rotatif, et un manchon tubulaire isolant qui présente une première extrémité couplée au connecteur et une seconde extrémité. Un embout est couplé à la seconde extrémité. Ledit embout a un second élément rotatif. Un fil enroulé est couplé entre le premier élément et le second élément rotatifs. Le fil enroulé se compose d'un matériau à mémoire de forme et sert à transmettre un couple du premier élément rotatif au second élément rotatif. A l'endroit où la sonde présente une courbe, le fil enroulé à mémoire de forme maintient une certaine rectitude, ce qui permet une rotation régulière d'une fixation en tire-bouchon sans précession de l'embout de la sonde.
Also published as
Latest bibliographic data on file with the International Bureau