06152909 is referenced by 249 patents and cites 84 patents.

Aspiration catheters and methods for the treatment of an occlusion in a blood vessel. These catheters and methods are especially useful in the removal of occlusions from saphenous vein grafts, the coronary and carotid arteries, arteries above the aortic arch and even smaller vessels. The catheters of the present invention are provided in either over-the-wire or in single operator form. Radiopaque markers are preferably incorporated into distal ends of the catheters, and visual markers are incorporated into the proximal end of the catheters, to facilitate their positioning within the body. The catheters are provided with varying flexibility along the length of the shaft, such that they are soft and flexible enough to be navigated through the vasculature of a patient without causing damage, but are stiff enough to sustain the axial push required to position the catheter properly and to sustain the aspiration pressures. Support mandrels and support sheaths may also be added to impart additional strength to the length of the catheter.

Title
Aspiration system and method
Application Number
650464
Publication Number
6152909
Application Date
February 19, 1998
Publication Date
November 28, 2000
Inventor
Mir Imran
Los Altos Hills
CA, US
Sivette Lam
San Jose
CA, US
Mukund R Patel
San Jose
CA, US
Hung V Ha
San Jose
CA, US
Celso J Bagaoisan
Union City
CA, US
Agent
Knobbe Martens Olson & Bear
Assignee
Percusurge
CA, US
IPC
A61M 25/00
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