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US 2006/0189921 A1Published application
Rapid exchange aspiration catheters and their use
AssigneeLumen Biomedical, Inc.
InventorsJason Galdonik, Matthew Ogle, James Pokorney
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AssigneeLumen Biomedical, Inc.
InventorsJason Galdonik, Matthew Ogle, James Pokorney
Estimating the term…
Methods for the removal of an embolism protection device use aspiration during the drawing of the embolism protection device into the catheter. Generally, the embolism protection device comprises a three dimensional filtering matrix that provides improved filtering without blocking the flow through the patient's vessel. In some embodiments, the embolism protection device can be actuated between a deployed configuration and a removal configuration with a reduced area across the cross section of the vessel lumen. The embolism protection device in the removal configuration can be drawn within the aspiration catheter. The aspiration catheter can have a distal portion with an expanded compartment with an average diameter at least about 20 percent larger than the average diameter of the shaft of the catheter within about 10 centimeters of the expanded compartment. In a rapid exchange version, the rapid exchange segment can have a length of at least about 10 centimeters.
A method for loading a rapid exchange catheter having a shaft with a single lumen, a distal opening and a rapid exchange port, the method comprising guiding a guide structure through the rapid exchange port wherein the loaded catheter has a single lumen with a guide structure extending into a distal opening, through the lumen and out through the port.
A rapid exchange catheter comprising a suction device, a proximal portion, a distal portion and a shaft attached between the proximal portion and the distal portion, wherein the distal portion comprises a single lumen, a suction port and a guide port adjacent the connection between the shaft and the distal portion and wherein the suction device is attached at the proximal portion to supply suction at the distal end through a continuous lumen extending from the proximal portion to the distal portion.
A rapid exchange catheter comprising a suction device, a proximal portion, a rapid exchange segment having a distal end and a shaft attached between the proximal portion and the rapid exchange segment, wherein the rapid exchange segment comprises a port adjacent the connection between the shaft, wherein the section device is attached to the proximal portion to supply suction at the distal end through a continuous lumen extending from the proximal portion to the distal portion and wherein the rapid exchange segment has a length of at least from about 2 cm to about 30 cm.
Dependencies are inferred from the claim text.