Intrabody navigation system for medical applications

Details Intrabody navigation system for medical applications Intrabody navigation system for medical applications

2003-04-08

2009-06-30

Le, Long V (Department: 3768)

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

C342S448000, C342S450000

Reexamination Certificate

active

07555330

ABSTRACT:
A system and method for tracking the position and orientation of a probe. Three at least partly overlapping planar antennas are used to transmit electromagnetic radiation simultaneously, with the radiation transmitted by each antenna having its own spectrum. A receiver inside the probe includes sensors of the three components of the transmitted field, with sensors for at least two of the three components being pairs of sensors, such as coils, on opposite sides of a common reference point. In one variant of the receiver, the coils are collinear and are wound about cores that are mounted in pairs of diametrically opposed apertures in the housing of the probe. Each member of a pair of coils that sense the same component of the transmitted field is connected to a different input of a differential amplifier. The position and orientation of the receiver relative to the antennas are determined noniteratively.

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