Directional rotational atherectomy device with offset...

Details Directional rotational atherectomy device with offset... Directional rotational atherectomy device with offset...

A - Human Necessities

61

B

A61B 17/3207 (2006.01)

Patent

CA 2719161

The invention provides a rotational atherectomy system, device and method comprising a flexible, elongated, rotatable drive shaft with a pre-curved abrasive section disposed within a catheter that deforms the abrasive section to a substantially straight profile and, when the abrasive section is moved distally out of the catheter, the abrasive section resumes its pre-curved profile. Directional ablation is achieved by rotation of the drive shaft along its pre-curved axis as the abrasive section is urged against a portion of the lumen wall.

L'invention concerne un système, un dispositif et un procédé dathérectomie rotative comportant un arbre d'entraînement rotatif allongé flexible muni d'une section abrasive pré-incurvée disposée à l'intérieur d'un cathéter qui déforme la section abrasive en un profilé sensiblement droit et, quand la section abrasive est sortie de manière distale du cathéter, la section abrasive reprend son profilé pré-incurvé. L'ablation directionnelle est réalisée par rotation de l'arbre d'entraînement le long de son axe pré-incurvé alors que la section abrasive est sollicitée contre une partie de la paroi luminale.

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