Distal protection guidewire with nitinol core
First Claim
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1. A guidewire, comprising:
- an elongate shaft including a proximal section having a distal end, a distal section having a proximal end, and a transition section, the proximal section comprising a first material, the distal section comprising a second material different from the first material, the transition section includes the distal end of the proximal section abutting the proximal end of the distal section;
a coupling member attached adjacent to the transition section, said coupling member configured to secure the proximal section to the distal section; and
further comprising a distal stop disposed about a portion of said distal section.
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Abstract
A guidewire having a proximal section, a distal section, and a transition section is disclosed. In one exemplary embodiment of the present invention, the proximal section may be formed of a relatively stiff, inelastic material, whereas the distal section may be formed of a relatively flexible, elastic material having super-elastic properties. A coupling member may be placed adjacent to the transition section to secure the proximal and distal sections together.
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Citations
24 Claims
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1. A guidewire, comprising:
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an elongate shaft including a proximal section having a distal end, a distal section having a proximal end, and a transition section, the proximal section comprising a first material, the distal section comprising a second material different from the first material, the transition section includes the distal end of the proximal section abutting the proximal end of the distal section; a coupling member attached adjacent to the transition section, said coupling member configured to secure the proximal section to the distal section; and further comprising a distal stop disposed about a portion of said distal section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A guidewire, comprising:
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an elongate shaft including a proximal section, a distal section, and a transition section, the proximal section comprising a first material, the distal section comprising a second material different from the first material, the transition section including a necked-down portion; a coupling member attached adjacent to the transition section, said coupling member configured to secure the proximal section to the distal section, and further comprising a distal stop disposed about a portion of said distal section. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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24. A guidewire, comprising:
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an elongate shaft including a proximal section formed of a relatively stiff, elastic material, a distal section formed of a relatively flexible, elastic material, and a transition section including a necked-down portion forming a joint between the proximal and distal sections; a coupling member attached adjacent to the transition section; an embolic protection filter disposed on the shaft; and further comprising a distal stop disposed about a portion of said distal section.
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Specification