Object location system and method using field actuation sequences having different field strengths
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 3, 2001
Grant Date -
N/A
app pub date -
Dec 10, 1998
filing date -
Feb 27, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and system of operating a location system to locate objects in space, such as medical instruments (16) within the body of a patient is presented. The method includes cyclically actuating transmitters (10a, 10b, 10c) in a fixed frame of reference for the transmission of magnetic fields to a plurality of sensing units (54a, 54b, 54c). The sensing units detect characteristics of the fields during actuation sequences for determining location. At least one transmitter may be actuated during at least some of the cycles in a plural-value actuation sequence to provide a field with different field strengths during a sequence of plural sensing intervals, and with a progressively varying field strength value during transition intervals between the sensing intervals.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully