FILTER DELIVERY AND RETRIEVAL DEVICE
First Claim
1. A filter retrieval system comprising:
- an elongate shaft having a proximal end, a distal end, and a wall defining a shaft lumen;
a proximal guidewire port disposed distal of the proximal end of the elongate shaft;
a distal tip disposed near the distal end of the elongate shaft, the distal tip having an aperture defining a distal guidewire port;
a tubular member having a first end fixed to the proximal guidewire port, a second end fixed to the distal tip, and a longitudinally collapsible region therebetween, the tubular member defining a guidewire lumen;
a guidewire extending through the distal guidewire port and the proximal guidewire port; and
a filter disposed on the guidewire.
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Accused Products
Abstract
Methods and devices for providing temporary placement of a filter in a blood vessel are disclosed. A filter delivery system in accordance with one exemplary embodiment of the present invention includes a catheter having an elongate shaft and a tubular member disposed within a shaft lumen defined by the elongate shaft. The elongate shaft also includes a proximal end, a distal end, and a wall defining the shaft lumen. The tubular member has a first end fixed to the wall of the elongate shaft, and a second end disposed within the shaft lumen. The tubular member defines a guidewire lumen that is in fluid communication with a distal guidewire port defined by the second end of the tubular member. The catheter also includes a proximal guidewire port extending through the wall of the elongate shaft. A filter may be disposed within a distal portion of the shaft lumen. A distal end of a guidewire is fixed to the filter. The guidewire preferably extends through the distal guidewire port, the guidewire lumen, and the proximal guidewire port.
83 Citations
20 Claims
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1. A filter retrieval system comprising:
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an elongate shaft having a proximal end, a distal end, and a wall defining a shaft lumen;
a proximal guidewire port disposed distal of the proximal end of the elongate shaft;
a distal tip disposed near the distal end of the elongate shaft, the distal tip having an aperture defining a distal guidewire port;
a tubular member having a first end fixed to the proximal guidewire port, a second end fixed to the distal tip, and a longitudinally collapsible region therebetween, the tubular member defining a guidewire lumen;
a guidewire extending through the distal guidewire port and the proximal guidewire port; and
a filter disposed on the guidewire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A filter retrieval system comprising:
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a catheter including an elongate shaft having a proximal end, a distal end, and a wall defining a shaft lumen;
a proximal guidewire port disposed distal of the proximal end of the elongate shaft;
a generally conical tip slidingly disposed within the distal end of the elongate shaft, the distal tip having an aperture defining a distal guidewire port;
a tubular member having a first end fixed to the proximal guidewire port, a second end fixed to the distal tip, and a longitudinally collapsible region therebetween, the tubular member defining a guidewire lumen;
a guidewire extending through the distal guidewire port and the proximal guidewire port; and
a filter disposed on the guidewire. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A filter system comprising:
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an elongate shaft having a proximal end, a distal end, and a wall defining a shaft lumen;
a proximal guidewire port disposed distal of the proximal end of the elongate shaft;
a tubular member having a first end fixed to the proximal guidewire port, a second end near the distal end of the elongate shaft, and a longitudinally collapsible region therebetween, the tubular member defining a guidewire lumen;
a guidewire extending through the guidewire lumen; and
a filter disposed on the guidewire. - View Dependent Claims (19, 20)
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Specification