公开(公告)号：US09995833B1

公开(公告)日：2018-06-12

申请号：US15452213

申请日：2017-03-07

Applicant: General Electric Company

Inventor： Ilan Levin ,  Noam Perlis ,  Refael Dayan ,  Moty Levy ,  Roee Khen ,  Raed Khamaisi

IPC: G01T7/08 ,  G01T1/164 ,  G01T1/29 ,  A61B6/00

CPC classification number: G01T7/08 ,  A61B6/4266 ,  G01T1/1642 ,  G01T1/2985

Abstract: Nuclear medicine (NM) imaging system includes a detector assembly coupled to a gantry. The NM imaging system also includes a positioning sub-system having a motion controller and a detector motor. The positioning sub-system also includes a proximity sensor device (PSD) coupled to a detector head of the detector assembly. The PSD is configured to be activated. In response to being activated, the PSD is configured to transmit an output signal to stop the detector motor from moving the detector head toward the object. The NM imaging system also includes a secondary circuit that, in response to the PSD being activated, is configured to determine whether the detector head has stopped moving toward the object and, if the detector head has not stopped moving toward the object, is configured to disable the detector motor.