Double metal stent introducer

A - Human Necessities – 61 – F

Patent

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Details

A61F 2/84 (2006.01)

Patent

CA 2621064

A stent introducer apparatus including a primary stent introducer device (12) movably disposed within a secondary stent introducer device (14). The primary stent introducer device includes a first self-expanding stent (16) mounted on an elongate pusher member (18). The primary stent introducer device further includes an inner introducer catheter (20) slidably disposed about the pusher member and the first stent. The first stent is deployed by retracting the inner introducer catheter proximally relative to the pusher member to thereby expose the first stent from the distal end of the inner introducer catheter. The secondary stent introducer device includes a second self- expanding stent (22) mounted within an outer introducer catheter (24). The primary stent introducer device is configured to engage and hold the second stent. The second stent is deployed by retracting the outer introducer catheter proximally relative to the primary stent introducer device to thereby expose the second stent from the distal end of the outer introducer catheter.

L'invention porte sur un introducteur de stent comprenant un premier dispositif introducteur (12) mobile à l'intérieur d'un deuxième dispositif introducteur (14). Le premier dispositif introducteur de stent comprend un stent autodilatable (16) placé sur un poussoir allongé (18), ainsi qu'un cathéter (20) coulissant autour du poussoir et du premier stent. Le premier stent se déploie en tirant en arrière le cathéter de l'introducteur intérieur par rapport au poussoir de manière à faire sortir le premier stent de l'extrémité distale du cathéter de l'introducteur intérieur. Le deuxième dispositif introducteur de stent comprend un deuxième stent (22) autodilatable monté dans le cathéter (24) de l'introducteur extérieur. Le premier dispositif introducteur de stent est conçu pour saisir le deuxième stent. Le deuxième stent se déploie en tirant le cathéter introducteur extérieur vers l'arrière de manière à faire sortir le premier stent de l'extrémité distale du cathéter de l'introducteur extérieur.

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