Electricity: measuring and testing – Magnetic – Displacement
Patent
1995-06-07
1998-03-17
Snow, Walter E.
Electricity: measuring and testing
Magnetic
Displacement
324232, 1286531, G01B 714, G01S 504, A61B 505
Patent
active
057291292
ABSTRACT:
A system for locating objects in space, such as medical instruments within the body of a patient, based upon transmission of magnetic fields from coils in a fixed frame of reference to sensors on the object or visa-versa. The current supplied to the coils is adjusted to assure that the sensors receive fields within a preselected range of magnitudes regardless of the location of the object in space. This assures that the sensor operates within its optimum range, and permits use of compact transmitters and sensors.
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Biosense Inc.
Snow Walter E.
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