US 12,436,212 B2
Radio-frequency coil signal chain for a low-field MRI system
Hadrien A. Dyvorne, New York, NY (US); and Todd Rearick, Cheshire, CT (US)
Assigned to Hyperfine Operations, Inc., Guilford, CT (US)
Filed by Hyperfine Operations, Inc., Guilford, CT (US)
Filed on Apr. 24, 2023, as Appl. No. 18/138,283.
Application 18/138,283 is a continuation of application No. 17/182,777, filed on Feb. 23, 2021, granted, now 11,662,402.
Application 17/182,777 is a continuation of application No. 16/418,414, filed on May 21, 2019, granted, now 10,969,446.
Claims priority of provisional application 62/692,454, filed on Jun. 29, 2018.
Claims priority of provisional application 62/674,458, filed on May 21, 2018.
Prior Publication US 2023/0384404 A1, Nov. 30, 2023
Int. Cl. G01R 33/34 (2006.01); G01R 33/44 (2006.01); G01R 33/00 (2006.01); G01R 33/36 (2006.01); G01R 33/385 (2006.01); G01R 33/565 (2006.01)
CPC G01R 33/34007 (2013.01) [G01R 33/445 (2013.01); G01R 33/0029 (2013.01); G01R 33/3614 (2013.01); G01R 33/3628 (2013.01); G01R 33/3854 (2013.01); G01R 33/565 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A circuit configured to tune a radio frequency (RF) coil coupled to an amplifier of a low-field magnetic resonance imaging system, the circuit comprising:
tuning circuitry coupled across inputs of the amplifier; and
feedback circuitry coupled between an output of the amplifier and an input of the amplifier, wherein the feedback circuitry includes mutual inductive circuitry including at least one inductor.