US 11,994,567 B2
Pressurized gas powered magnetic resonance imaging data
Bernhard Gleich, Hamburg (DE); and Steffen Weiss, Hamburg (DE)
Assigned to Koninklijke Philips N.V., Eindhoven (NL)
Appl. No. 17/607,092
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Apr. 28, 2020, PCT No. PCT/EP2020/061746
§ 371(c)(1), (2) Date Oct. 28, 2021,
PCT Pub. No. WO2020/221735, PCT Pub. Date Nov. 5, 2020.
Claims priority of application No. 19171733 (EP), filed on Apr. 30, 2019.
Prior Publication US 2022/0229128 A1, Jul. 21, 2022
Int. Cl. G01R 33/34 (2006.01); G01R 33/385 (2006.01); H02K 7/18 (2006.01)
CPC G01R 33/3403 (2013.01) [G01R 33/385 (2013.01); H02K 7/1823 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A magnetic resonance imaging antenna comprising:
one or more coil elements;
a radio frequency system coupled to the one or more coil elements;
a gas inlet configured for receiving a pressurized gas;
a gas outlet configured for venting the pressurized gas; and
an electrical generator configured for converting mechanical energy resulting from passing the pressurized gas from the gas inlet to the gas outlet into electricity while in a presence of an external magnetic field, wherein the electrical generator is configured to power the magnetic resonance imaging antenna and components of the magnetic resonance imaging antenna using the electricity wherein the electrical generator comprises a turbine configured for being rotated by the pressurized gas passing from the gas inlet to the gas outlet, wherein the turbine is configured for rotating a conductive element formed as a conductive loop, and the conductive element is configured for generating electricity when being rotated in the external magnetic field, and wherein the electrical generator comprises a switching circuit in series with the conductive loop, wherein the switching circuit is configured for being powered by the switching circuit, wherein the switching circuit is configured for electrically opening and electrically closing the conductive loop at a predetermined frequency, wherein the electrical generator further comprises at least one stationary pickup coil configured for receiving electrical energy switched at the predetermined frequency, wherein the at least one stationary pickup coil is configured for supplying the electricity to the radio frequency system.