Anchoring mechanisms for intravascular devices

Details Anchoring mechanisms for intravascular devices Anchoring mechanisms for intravascular devices

A - Human Necessities

61

F

A61F 2/01 (2006.01)

Patent

CA 2520635

Anchoring mechanisms for limiting travel of an intravascular device (36) along an elongated member (18) such as a guidewire or guide catheter are disclosed. The anchoring mechanism may include a leaf spring (12) that can be actuated between an unlocked position and a locked position. In the unlocked position, the leaf spring is slidably and rotationally disposed along the elongated member. In the locked position, the leaf spring is releasably secured to the elongated member, preventing movement thereon. The leaf spring can be attached directly to the intravascular device, or can be formed as a separate member and used as a stopper mechanism to limit travel of the intravascular device along the elongated member.

La présente invention a trait à des mécanismes d'ancrage pour limiter la course d'un dispositif intravasculaire (36) le long d'un organe de forme allongée (18) tel qu'un fil-guide ou un cathéter de guidage. Le mécanisme d'ancrage peut comporter un ressort à lame (12) pouvant être actionné entre une position déverrouillée et une position verrouillée. Dans la position déverrouillée, le ressort à lame est disposé en coulissement et en rotation le long de l'organe de forme allongée. Dans la position verrouillée, le ressort à lame est solidarisée de manière amovible à l'organe de forme allongée, empêchant un déplacement sur celui-ci. Le ressort à lame peut être fixé directement au dispositif intravasculaire, ou peut être formé comme un organe distinct et sert de mécanisme de butée pour limiter la course du dispositif intravasculaire le long de l'organe de forme allongée.

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