05053008 is referenced by 589 patents and cites 5 patents.

A multisheathed catheter (12) includes an umbrella (18) positioned on its exterior sheath (16). In use, the umbrella (18) should be positioned within the pulmonary artery. The umbrella (18) has a meshwork (22) through which blood and plasma pass freely therethrough, but which is capable of catching emboli and other foriegn matter before they travel to the lungs. Detection equipment, including a two-dimensional ultrasound probe (44), differential sensors (54 and 56), and chemical sensors (44), are positioned to detect when an embolus has been caught in the umbrella (18). A conduit (64) transports lysing agents (66) such as TPA or heparin to the trapped embolus. In addition, the umbrella (18) can be closed on a trapped embolus using cords (34) and the embolus can be broken apart using ultrasonic probes (70) or can be removed by suction after it is drawn inside the lumen of the catheter (12).

Title
Intracardiac catheter
Application Number
7/616899
Publication Number
5053008
Application Date
November 21, 1990
Publication Date
October 1, 1991
Inventor
Sandeep Bajaj
512 Grinell Dr., Richmond, 23236
VA, US
Agent
Whitham & Marhoefer
IPC
A61H 1/00
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