Title:
The position and direction algorithm for a single axis sensor
Document Type and Number:
Japanese Patent JP6282415
Kind Code:
B2
Abstract:
A method includes generating a magnetic field in a predefined volume. A reference model is defined, which models the magnetic field at multiple points in the volume using spherical harmonics. The magnetic field is measured by a field detector, which is coupled to an intra-body probe inserted into an organ of a living body located in the volume. A cost function is defined by comparing the measured magnetic field with the reference magnetic field model within the volume. The cost function is minimized by a computation over dipole terms in a derivative over the cost function so as to find a position and orientation that matches the measured magnetic field. The found position and orientation is outputted as the position and orientation of the probe in the organ.
Inventors:
Abram Dan Montag
Application Number:
JP2013145245A
Publication Date:
February 21, 2018
Filing Date:
July 11, 2013
Export Citation:
Assignee:
Biosense Webster (Israel), Ltd.
International Classes:
G01B7/00
Domestic Patent References:
| JP200947470A | ||||
| JP2004536298A | ||||
| JP2000512005A | ||||
| JP8500441A |
Foreign References:
| US20120165656 | ||||
| US20100210939 | ||||
| US20040034515 |
Attorney, Agent or Firm:
Konobu Kato
Takafumi Oshima
Takafumi Oshima