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US 2003/0114879 A1Published application
Hydraulic controlled retractable tip filter retrieval catheter
AssigneeSciMed Life Systems, Inc.
InventorsCharles L. Euteneuer, Thomas E. Broome
Life of this patent
Estimating the term…
Abstract
Distal protection filter retrieval devices and methods of retrieving a distal protection filter. A filter retrieval catheter may comprise an inner tube, an outer tube disposed over the inner tube, an annular lumen disposed between the inner tube and the outer tube, and a tapered member coupled to the lumen. The tapered member may be movable between a first position for passing a lesion and a second position retrieving a filter.
Claims12
A filter retrieval catheter, comprising:
- an inner tube having a proximal end, a distal end, and an inner lumen extending therethrough;
- an outer tube disposed over the inner tube, the outer tube including a proximal end and a distal end, wherein an annular lumen is defined between the inner tube and the outer tube;
- and
- a tip member slidably disposed in the lumen for movement between a first position and a second position.
1 more element
A filter retrieval catheter, comprising:
- an inner tube having a proximal end, a distal end, and an inner lumen extending therethrough;
- an outer tube disposed over the inner tube, the outer tube including a proximal end and a distal end;
- wherein an annular lumen is defined between the inner tube and the outer tube;
- and
- a tip member coupled in third communication to the lumen, wherein the tip member includes a rolling member in fluid communication with the annular lumen, the rolling member adapted and configured to transition between a first position and a second position.
2 more elements
A method of retrieving a filter from a blood vessel, comprising the steps of:
- providing a catheter having a distal tip movable between first and second positions under the influence of fluid pressure;
- advancing the catheter to the filter;
- altering the fluid pressure to allow the tip to move between the first and the second position;
- enclosing the filter at least in part within the catheter;
- and
- removing the catheter and filter proximally from the blood vessel.
3 more elements
Dependencies are inferred from the claim text.