초록 ▼

A magnetic position and orientation determining system uses magnetic fields, desirably including uniform fields from Helmholtz coils positioned on opposite sides of a sensing volume and gradient fields generated by the same coils. By monitoring field components detected at the probes during applicat

A magnetic position and orientation determining system uses magnetic fields, desirably including uniform fields from Helmholtz coils positioned on opposite sides of a sensing volume and gradient fields generated by the same coils. By monitoring field components detected at the probes during application of these fields, the position and orientation of the probe in the field can be deduced. A representation of the probe can be superposed on a separately acquired image of the subject to show the position and orientation of the probe with respect to the subject.

대표청구항 ▼

[ What is claimed is:] [1.] A magnetic sensor comprising a flexible support, and a plurality of magnetically sensitive elements each having a preselected sensitive direction disposed on said support, said flexible support being folded so that said magnetically sensitive elements are non-coplanar wit

[ What is claimed is:] [1.] A magnetic sensor comprising a flexible support, and a plurality of magnetically sensitive elements each having a preselected sensitive direction disposed on said support, said flexible support being folded so that said magnetically sensitive elements are non-coplanar with one another, said sensor having width and thickness dimensions less than about 5 mm and being adapted for mounting within a probe insertable into a body of a living subject.