Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Reexamination Certificate
2006-12-05
2006-12-05
Arana, Louis M. (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
C324S322000
Reexamination Certificate
active
07145339
ABSTRACT:
The subject invention pertains to a technique and device that can isolate and separate resultant electromagnetic fields of volume coils at high frequency. In an embodiment, an RF shield can be used to isolate and separate resultant electromagnetic fields. In an embodiment, the shield can have a cylindrical shape that can form a partially closed volume in which an object to be imaged, or sample, can be inserted. In an embodiment, the RF shield can be part of a RF coil. In a specific embodiment, some parts of a volume coil can be inside a shield, and the other parts of a volume coil can be outside the shield. The shielding of some of the parts of a volume coil can create conductor patterns corresponding to the specific parts inside the shield and the specific parts outside the shield. In an embodiment, two or more conductor patterns can be placed in proximity to the same shield and either be driven independently, driven together, or act as receiving elements, combined or uncombined. This embodiment is advantageous because the combination of conductor patterns can be optimized by the flexibility of separating the fields of end-rings from the fields of leg currents.
REFERENCES:
patent: 4751464 (1988-06-01), Bridges
patent: 4812761 (1989-03-01), Vaughan, Jr.
patent: 4888555 (1989-12-01), Vaughan et al.
patent: 5363845 (1994-11-01), Chowdhury et al.
patent: 5557247 (1996-09-01), Vaughn
patent: 5574372 (1996-11-01), Moritz et al.
patent: 5744957 (1998-04-01), Vaughan, Jr.
patent: 5886596 (1999-03-01), Vaughan, Jr.
patent: 6008650 (1999-12-01), Behbin
patent: 6107974 (2000-08-01), Votruba et al.
patent: 6404201 (2002-06-01), Boskamp
patent: 6633161 (2003-10-01), Vaughan, Jr.
patent: 2002/0070828 (2002-06-01), Vaughan
patent: 2003/0146750 (2003-08-01), Vaughan
patent: 2003/0222832 (2003-12-01), Greim
patent: 2004/0012391 (2004-01-01), Vaughan
patent: 2004/0027128 (2004-02-01), Vaughan
patent: 2004/0030238 (2004-02-01), Vaughan
patent: 2004/0140808 (2004-07-01), Vaughan
patent: 0084946 (1983-08-01), None
patent: 0239147 (1987-09-01), None
patent: 2001 128956 (2001-05-01), None
patent: WO-1997-006723 (1997-02-01), None
patent: WO-1997-008788 (1997-03-01), None
patent: WO-2000-072033 (2000-11-01), None
patent: WO 03/36318 (2003-05-01), None
patent: WO-2003-089947 (2003-10-01), None
Lu, Dongfeng, et al., A Technique of Double-Resonant Operation of19F and1H Quadrature Birdcage Coils, Magnetic Resonance in Medicine, May 1991, pp. 180-185, vol. 19, Duluth MN, USA.
Duensing G. Randy
Saylor Charles A.
Arana Louis M.
Invivo Corporation
Saliwanchik Lloyd & Saliwanchik
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