US 11,940,521 B2
Multi-channel pilot tone motion detection
Christoph Gunther Leussler, Hamburg (DE); Christian Findeklee, Norderstedt (DE); Jan Jakob Meineke, Hamburg (DE); Peter Vernickel, Humburg (DE); and Peter Koken, Hamburg (DE)
Assigned to Koninklijke Philips N.V., Eindhoven (NL)
Appl. No. 17/612,066
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed May 18, 2020, PCT No. PCT/EP2020/063748
§ 371(c)(1), (2) Date Nov. 17, 2021,
PCT Pub. No. WO2020/234207, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 19175293 (EP), filed on May 20, 2019.
Prior Publication US 2022/0206098 A1, Jun. 30, 2022
Int. Cl. G01R 33/56 (2006.01); A61B 6/00 (2006.01); A61B 6/03 (2006.01); G01R 33/565 (2006.01); G01R 33/567 (2006.01)
CPC G01R 33/56509 (2013.01) [A61B 6/037 (2013.01); A61B 6/4417 (2013.01); A61B 6/5264 (2013.01); G01R 33/5673 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A medical system comprising:
a memory storing machine executable instructions;
a processor configured for controlling the medical system; and
a pilot tone system;
wherein the pilot tone system comprises:
a radio frequency system comprising multiple transmit channels and multiple receive channels, wherein the multiple transmit channels are configured for each transmitting unique pilot tone signals via multiple transmit coils wherein the multiple receive channels are configured for receiving multi-channel pilot tone data via multiple receive coils;
wherein execution of the machine executable instructions causes the processor to:
transmit multi-channel pilot tone signals by controlling at least a portion of the multiple transmit channels to transmit the unique pilot tone signals;
acquire multi-channel pilot tone data due to impedance response to the transmitted pilot tone signals by controlling at least a portion of the multiple receive channels to receive the multi-channel pilot tone data; and
determine a motion state of the subject using the multi-channel pilot tone data.