Soft linear mapping catheter with stabilizing tip

Details Soft linear mapping catheter with stabilizing tip Soft linear mapping catheter with stabilizing tip

A - Human Necessities

61

B

A61B 5/042 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2587684

A catheter adapted for mapping near a tubular region of a heart, has an elongated tubular catheter body having proximal and distal ends, an intermediate section distal of the catheter body, and a mapping assembly at the distal end of the intermediate section. The electrode-carrying mapping assembly has a generally circular main segment with a support member having shape-memory, and a generally linear proximal segment which has greater flexibility than either the intermediate section or the generally circular main segment. The generally circular main segment is adapted to releasably anchor itself in the tubular region and to map circumferentially around the tubular region and the generally linear segment is adapted to contact generally along its length heart wall tissue near an ostium of the tubular region.

L~invention concerne un cathéter adapté pour une cartographie près d~une région tubulaire d~un cAEur, avec un corps de cathéter tubulaire allongé ayant des extrémités proximale et distale, une section intermédiaire distale du corps de cathéter, et un ensemble de cartographie à l~extrémité distale de la section intermédiaire. L~ensemble de cartographie porteur d~électrode possède un segment principal généralement circulaire avec un élément support à mémoire de forme et un segment proximal généralement linéaire de plus grande souplesse que la section intermédiaire ou bien le segment principal généralement circulaire. Le segment principal généralement circulaire est adapté pour s~ancrer de manière décrochable dans la région tubulaire et pour cartographier de manière circonférentielle autour de la région tubulaire et le segment généralement linéaire est adapté pour toucher généralement sur sa longueur le tissu de paroi cardiaque près d~un orifice de la région tubulaire.

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