Guidewire with distal expansion feature and method for...

Details Guidewire with distal expansion feature and method for... Guidewire with distal expansion feature and method for...

A - Human Necessities

61

M

A61M 25/09 (2006.01) A61M 25/10 (2006.01) A61F 2/84 (2006.01) A61M 25/098 (2006.01)

Patent

CA 2571381

A guidewire navigable through body vessels of a human subject for delivery of a catheter or the like is provided. The guidewire includes an expandable segment movable between a collapsed state and an expanded state. If the catheter encounters resistance in a vessel and cannot be advanced further, the medical professional can move the expandable segment to the expanded state in which the expandable segment engages an inner surface of the catheter. The expandable segment locks onto the catheter, which allows the guidewire and catheter to be advanced through the vessel together as a single unit. An inflatable balloon catheter movable along the guidewire requires only a single tube and is sealed by the expandable segment of the guidewire for subsequent inflation.

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