MRI/MRS gradient coil with integrated cooling circuits

Electricity: measuring and testing – Particle precession resonance – Spectrometer components

Reexamination Certificate

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Reexamination Certificate

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07339376

ABSTRACT:
Systems, methods and apparatus are provided through which heat produced in the patient examination space by the power used to create electromagnetic fields in an MRI/MRS system is significantly reduced by coolant carried by one of two split connected concentric coil layers of one of two of the primary gradient coils used to alter the main magnetic field. The coil carrying the coolant is made of copper tubing. The second primary gradient coil is placed between the layers of the split primary gradient coil. Adjusting the number of turns in each layer of the split primary gradient coil adjusts the heat generated. The inductances and resistances of the two primary gradient coils are balanced by adjusting the gain of the coils.

REFERENCES:
patent: 5489848 (1996-02-01), Furukawa
patent: 5581185 (1996-12-01), Petropoulos et al.
patent: 5786695 (1998-07-01), Amor et al.
patent: 6236207 (2001-05-01), Arz et al.
patent: 6498947 (2002-12-01), Boskamp et al.
patent: 6642717 (2003-11-01), Dietz et al.
patent: 6667619 (2003-12-01), Westphal et al.
patent: 6696836 (2004-02-01), Kimmlingen
patent: 6741152 (2004-05-01), Arz et al.
patent: 6774631 (2004-08-01), Heid
patent: 6781376 (2004-08-01), Schaaf
patent: 6977501 (2005-12-01), Kassai et al.
patent: 2001/0042385 (2001-11-01), Kaindl et al.
patent: 2003/0222647 (2003-12-01), Goldie
patent: 02/075345 (2002-09-01), None
patent: 2005/043185 (2005-05-01), None
patent: 2005279168 (2005-10-01), None
H.Lu et al., “Momentum-Weighted Conjugate Gradient Descent Algorithm for Gradient Coil Optimization” MAGN. Reson.Med., vol. 51, 2004, pp. 158-164, XP002442398, see the chapter ‘Gradient Coil Design for Rat Imaging’.
Deka et al.: “Quantitative density profiling with pure phase encoding and a dedicated 1D gradient” Journal of Magnetic Resonance, Academic Press, Orlando, FL, US, vol. 178, No. 1, Jan. 2006, pp. 25-32, XP005197846 ISSN: 1090-7807 see chapter 3.1.
B. A. Chronik et al.: “A 2000mT/m Multilayer Gradient Coil for Mouse Imaging” Proc.Int.Soc.Mag.Reson.Med., 1999, p. 469, XP002442399 Conference abstract.
Leggett J et al.: “Actively shielded Multi—layer gradient coil designs with improved cooling properties” Journal of Magnetic Resonance, Academic Press, Orlando, FL, US, vol. 165, No. 2, Dec. 2003 (ZOO3-I2), pp. 196-207, XP004474985 ISSN: 1090-7807.

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