Biopsy and sampling needle antennas for magnetic resonance imaging-guided biopsies
US7236816B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2002 |
| Grant date | Jun 26, 2007 |
| Priority date | — |
| Expiry date | Mar 10, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3958
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Herein is disclosed a magnetic resonance imaging antenna, including an inner conductor, an outer shield slideably displaceable with respect to the inner conductor, and an insulator electrically insulating the inner conductor from the outer shield. Herein is disclosed a biopsy needle antenna, including a magnetic resonance imaging antenna, having an outer shield, and an inner conductor electrically insulated from the outer shield by a dielectric; and a biopsy needle electrically connected to the inner conductor and electrically insulated from the outer shield by the dielectric. Herein is disclosed a method of obtaining a sample with magnetic resonance imaging guidance, including providing a sampling needle magnetic resonance imaging antenna, advancing the antenna to a structure from which the sample is to be taken, detecting magnetic resonance data by the antenna, and coupling the sample to the antenna.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.