SHEATHLESS EMBOLIC PROTECTION DEVICE
First Claim
1. An intravascular distal protection device, comprising:
- a guidewire having a proximal end and a distal end;
a filtering material disposed about the guidewire, the filtering material having a proximal edge defining a proximally facing opening when in an expanded position;
a hoop wire having a proximal end and a distal end and slidably attached to the proximal edge, the hoop wire wrapped in a helical coil about the guidewire in a first contracted position and defining a hoop at the proximal end of the filtering material in the expanded position; and
an actuation member attached to the hoop wire and extending at least substantially to the proximal end of the guidewire and configured to move the hoop wire between the first contracted position and the expanded position.
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Accused Products
Abstract
An intravascular distal protection device, comprising a guidewire having a proximal end and a distal end, a filtering material disposed about the guidewire, the filtering material having a proximal edge defining a proximally facing opening when in an expanded position, a hoop wire having a proximal end and a distal end and slidably attached to the proximal edge, the hoop wire wrapped in a helical coil about the guidewire in a first contracted position and defining a hoop at the proximal end of the filtering material in the expanded position, and an actuation member attached to the hoop wire and extending at least substantially to the proximal end of the guidewire and configured to move the hoop wire between the first contracted position and the expanded position.
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Citations
20 Claims
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1. An intravascular distal protection device, comprising:
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a guidewire having a proximal end and a distal end; a filtering material disposed about the guidewire, the filtering material having a proximal edge defining a proximally facing opening when in an expanded position; a hoop wire having a proximal end and a distal end and slidably attached to the proximal edge, the hoop wire wrapped in a helical coil about the guidewire in a first contracted position and defining a hoop at the proximal end of the filtering material in the expanded position; and an actuation member attached to the hoop wire and extending at least substantially to the proximal end of the guidewire and configured to move the hoop wire between the first contracted position and the expanded position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19)
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13. An intravascular distal protection device, comprising:
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a hollow guidewire having a proximal end and a distal end; a filtering material having a proximal edge defining a proximally facing opening when in an expanded position; a hoop wire having a proximal end and a distal end and slidably attached to the proximal edge, the hoop wire having a reduced profile in a first contracted position and defining a hoop at the proximal end of the filtering material in the expanded position; and an actuation member attached to the distal end of the hoop wire and configured to move the hoop wire between the first contracted position and the expanded position, the actuation member disposed within the guidewire. - View Dependent Claims (14, 15, 16, 17, 18)
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20. The method of claim 20, wherein the step of deploying the filtering material includes the step of pulling on the actuation member.
Specification