Rapid exchange catheter having a support mandrel

Details Rapid exchange catheter having a support mandrel Rapid exchange catheter having a support mandrel

A - Human Necessities

61

M

A61M 29/02 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2392800

Rapid exchange catheters having improved pushability and trackability due to a support mandrel disposed within the inflation lumen. The mandrel is secured at the proximal end of the catheter shaft while the free distal end extends beyond the proximal guidewire port. In an alternative embodiment, the catheter shaft further comprises a sleeve in the inflation lumen that secures a distal section of the support mandrel. The distal end of the mandrel extends beyond the sleeve.

La présente invention concerne un cathéter d'échange rapide présentant une maniabilité et une stabilité de direction améliorées grâce à un mandrin support disposé au sein d'une lumière de gonflage. Le mandrin est fixé à l'extrémité proximale de la tige du cathéter tandis que l'extrémité distale libre se prolonge au delà de l'entrée du fil-guide proximal. Dans une variante, la tige du cathéter comprend en outre un manchon dans la lumière de gonflage qui maintient une partie distale du mandrin support. L'extrémité distale du mandrin se prolonge au delà du manchon.

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