US Patent No: 6,073,043

Number of patents in Portfolio can not be more than 2000

Measuring position and orientation using magnetic fields

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Abstract

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A method and apparatus for determining the position and orientation of a remote object relative to a reference coordinate frame includes a plurality of field-generating elements for generating electromagnetic fields, a drive for applying, to the generating elements, signals that generate a plurality of electromagnetic fields that are distinguishable from one another, a remote sensor having one or more field-sensing elements for sensing the fields generated and a processor for processing the outputs of the sensing element(s) into remote object position and orientation relative to the generating element reference coordinate frame. The position and orientation solution is based on the exact formulation of the magnetic field coupling as opposed to approximations used elsewhere. The system can be used for locating the end of a catheter or endoscope, digitizing objects for computer databases, virtual reality and motion tracking. The methods presented here can also be applied to other magnetic tracking technologies as a final 'polishing' stage to improve the accuracy of their P&O solution.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CORMEDICA CORPORATIONNATICK, MA3

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schneider, Mark San Jose, CA 44 687

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
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SURGICAL NAVIGATION TECHNOLOGIES, INC. (18)
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Other [Check patent profile for assignment information] (1)
8,321,173 System and method for using magnetic sensors to track the position of an object 2005