Steerable catheter for right coronary artery

A - Human Necessities – 61 – M

Patent

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Details

A61M 25/00 (2006.01)

Patent

CA 2558696

A steerable three dimensional catheter to engage the ostium of a right coronary artery in a patient includes: a torque-transmitting proximal shaft (4) that receives manipulation by a user outside a patient in whom the catheter is used; and a distal shaft (8) that is responsive to torque transmitted by the proximal shaft. The distal shaft includes a preformed support section (10) having at least a segment (14) that abuts a posterior or left lateral interior surface of the ascending aorta of the patient. The distal shaft also includes a preformed ostium entry section (16) extending from the support section. In one implementation, the ostium entry section transitions from the support segment abutting the aortic wall to a distal tip end (22) by way of at least two differently directed angles.

L'invention concerne un cathéter tridimensionnel orientable permettant de venir en contact avec l'ostium de l'artère coronaire droite chez un patient et comprenant: une tige proximale transmettant un couple (4) et recevant une manipulation conférée par un utilisateur situé de manière externe par rapport au patient dans lequel le cathéter est utilisé ; et une tige distale (8) répondant au couple transmis par la tige proximale. La tige distale comprend une section support préformée (10) comprenant au moins un segment (14) venant en butée sur une surface intérieure latérale postérieure ou gauche de l'aorte ascendante du patient. La tige distale comprend également une section d'entrée dans l'ostium préformée (16) s'étendant à partir de la section support. Dans un mode de réalisation, la section d'entrée dans l'ostium passe du segment support venant en butée contre la paroi aortique à une extrémité de pointe distale (22), au moyen d'au moins deux angles orientés de manière distincte.

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