Magnetic location system with feedback adjustment of magnetic field generator
US5729129A · kind A · utility
690Cited by
15References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2034/2051
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.