06650923 is referenced by 176 patents and cites 2 patents.

Disclosed is an access catheter for identifying and providing access through a tissue structure such as the fossa ovalis on the intraatrial septum. The access catheter comprises an elongate flexible tubular body having a proximal and a distal end, and a retractable piercing structure such as a needle carried by the distal end. A detector such as a red, green, and blue light detector is associated with the access catheter, such that placement of the distal end of the catheter against the fossa ovalis can be detected. The piercing structure is thereafter advanceable to provide access to the left atrium through the fossa ovalis.

Title
Method for accessing the left atrium of the heart by locating the fossa ovalis
Application Number
9/549218
Publication Number
6650923 (B1)
Application Date
April 13, 2000
Publication Date
November 18, 2003
Inventor
Erik J van der Burg
Sunnyvale
CA, US
Alex K Khairkahan
Palo Alto
CA, US
Michael D Lesh
Mill Valley
CA, US
Agent
Knobbe Martens Olson & Bear
US
Assignee
ev3 Sunnyvale
CA, US
IPC
A61B 5/00
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