06122538 is referenced by 246 patents and cites 41 patents.

A system and method for tracking the position and orientation of a movable medical imaging device using a first and second sensor disposed on the device. The second sensor is of a different type than the first sensor and measures a P/O parameter different from that of the first sensor. The system and method also include techniques for recalibrating sensors using measurements from other sensors and improving the measurements made by some sensors using measurements from other sensors. The system and method also include measuring the position of a medical implement relative to a movable medical imaging device by providing a first and second subsystem on the medical implement and a third and fourth subsystem on the movable medical imaging device. The first subsystem has a sensor of a first type and the second subsystem has a sensor of a second type different from the sensor of the first type. The third subsystem has a sensor of a third type and the fourth subsystem has a sensor of a fourth type different from the third type.

Title
Motion--Monitoring method and system for medical devices
Application Number
8/784973
Publication Number
6122538
Application Date
January 16, 1997
Publication Date
September 19, 2000
Inventor
Sassan Shahidi
San Jose
CA, US
S Lawrence Marple Jr
San Diego
CA, US
Gelston Howell
Saratoga
CA, US
John D Marshall
Redwood City
CA, US
Paul E Chandler
Santa Cruz
CA, US
John William Sliwa Jr
Los Altos
CA, US
Agent
Brinks Hofer Gilson & Lione
Assignee
Acuson Corporation
CA, US
IPC
G01C 23/00
A61B 19/00
View Original Source