Stiffened balloon catheter for dilatation and stenting

Details Stiffened balloon catheter for dilatation and stenting Stiffened balloon catheter for dilatation and stenting

A - Human Necessities

61

M

A61M 29/00 (2006.01) A61F 2/06 (2006.01) A61M 29/02 (2006.01)

Patent

CA 2416825

The present invention pertains to a stiffened balloon (14) which can be used in angioplasty, endovascular, and valvuloplasty procedures or as a delivery balloon to deliver a stent or a stent-graft. Longitudinally discontinuous stiffening members (16) connected to the expandable balloon stiffen the balloon (14) but allow it to be navigated through curved passages. Projections (48) on the stiffening members (46) may engage, incise, crush, fracture, or pierce occlusions or retain a stent or stent-graft. Radio-opaque portions may be referenced to determine orientation. Longitudinally continuous stiffening members (46) bearing projections (48) and connected to the balloon (44) perform in a similar manner.

La présente invention concerne un ballonnet rigide pouvant être utilisé dans des interventions angioplastiques, endovasculaires et valvuloplastiques, ou utilisé pour la mise en place d'un stent ou d'une endoprothèse. Des éléments de rigidité longitudinalement discontinus connectés au ballonnet extensible servent à rigidifier le ballonnet, lui permettant également de circuler dans des passages courbés. Des éléments saillants sur les éléments de rigidité sont destinés à venir en contact, inciser, fragmenter, fracturer, ou percer des occlusions, ou à retenir un stent ou une endoprothèse. Des parties radio-opaques peuvent servir de référence pour déterminer une orientation. L'invention concerne également des éléments de rigidité longitudinalement continus comprenant des éléments saillants et connectés au ballonnet, utilisés de manière semblable.

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