US 11,872,072 B2
Timer circuit for X-ray imaging system
Eric M. Bailey, North Hampton, NH (US); and Jeffrey Johnson, West Newbury, MA (US)
Assigned to Siemens Medical Solutions USA, Inc., Malvern, PA (US)
Appl. No. 17/282,159
Filed by Siemens Medical Solutions USA, Inc., Malvern, PA (US)
PCT Filed Oct. 24, 2019, PCT No. PCT/US2019/057756
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/106404, PCT Pub. Date May 28, 2020.
Claims priority of provisional application 62/769,116, filed on Nov. 19, 2018.
Prior Publication US 2022/0000444 A1, Jan. 6, 2022
Int. Cl. A61B 6/00 (2006.01); H05G 1/28 (2006.01); H05G 1/42 (2006.01)
CPC A61B 6/542 (2013.01) [A61B 6/56 (2013.01); H05G 1/28 (2013.01); H05G 1/42 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A timer circuit for a radiation device that generates radiation, comprising:
a main power system;
a circuit interrupter connected to the radiation device;
a control computer;
a current sensor connected between the main power system and the circuit interrupter, and
a timing device coupled between the current sensor and the control computer, wherein the timing device is triggered when a current level detected by the current sensor exceeds a predetermined current level and, wherein the timing device measures a time period that the predetermined current level is exceeded, and wherein when the measured time period exceeds a predetermined time period, the circuit interrupter is configured to turn off current flow to the radiation device.