Flexible circuit bearing a trackable low-frequency electromagnetic coil
US11027096B2 · kind B2 · utility
0Cited by
27References
34Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2018 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | Mar 17, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/502
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A medical system tracks the position of a medical instrument within a body of a patient. The medical instrument includes an elongated flexible printed circuit and an electromagnet structure having a conductive coil wound around a core. A control circuit applies an excitation signal across the conductive coil. Electrical current running through the conductive coil (wound around the core) generates a magnetic field. A plurality of sensors sense parameters of the magnetic field and output sensor signals. The control circuit calculates the position of the medical instrument based on the sensor signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.