Guidewire apparatus for temporary distal embolic protection
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Accused Products
Abstract
A guidewire apparatus for use during percutaneous catheter interventions, such as angioplasty or stent deployment. A protection element comprising a filter or an occluder is mounted near the distal end of a steerable guidewire, which guides a therapeutic catheter. The guidewire apparatus comprises a hollow shaft movably disposed about a core wire and, optionally, a slippery liner interfitted there between. The shaft and core wire control relative displacement of the ends of the protection element, causing transformation of the protection element between a deployed configuration and a collapsed configuration.
103 Citations
53 Claims
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1-13. -13. (canceled)
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17-46. -46. (canceled)
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47. A guidewire apparatus comprising:
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an elongate hollow shaft having an inner wall and proximal and distal ends;
a core wire movably disposed within the shaft and having a distal end extending there from;
a torque-transmitting element capable of transmitting rotation force from the hollow shaft to the core wire;
a flexible tip member fixed about the core wire distal end, and a generally tubular protection element having a distal end coupled to the tip member and a proximal end coupled adjacent the shaft distal end, wherein relative longitudinal movement between the distal and proximal ends of the protection element accompanies a transformation of the protection element between a collapsed configuration and an expanded configuration. - View Dependent Claims (14, 15, 16, 48, 49, 50, 51, 52, 53)
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Specification