Position sensing system with integral location pad and position display
US7174201B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Feb 8, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/397
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Apparatus for performing a medical procedure on a tissue within a body of a subject includes a wireless tag which is fixed to the tissue and includes a first sensor coil. A second sensor coil is fixed to a medical device for use in performing the procedure. An integral processing and display unit includes a plurality of radiator coils, along with processing circuitry and a display. The radiator coils generate electromagnetic fields in a vicinity of the tissue, thereby causing currents to flow in the sensor coils. The processing circuitry processes the currents so as to determine coordinates of the tag relative to the medical device. The display is driven by the processing circuitry so as to present a visual indication to an operator of the medical device of an orientation of the device relative to the tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.