Imager control system with contact detector

Details Imager control system with contact detector Imager control system with contact detector

1995-10-02

1998-09-08

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

With switching means

378 91, H05G 108

Patent

active

058056645

ABSTRACT:
An imager control system with contact detection capability for positioning a movable imaging element structure with respect to a subject includes a collar assembly disposed around at least a portion of the imaging element structure disposed towards a subject region; a plurality of sensor elements disposed in a sensing pattern in the collar assembly, each sensor element having a number elastomeric electrodes coupled together in series; and a processing unit coupled to the sensor elements so as to detect contact between the collar assembly and a subject of examination as a function of a change in resistance in one or more elastomeric electrode resulting from deformation of the electrode upon contact with the subject. The elastomeric electrodes are made of a flexible material in which conductive particles have been embedded such that electrode exhibits a change in electrical resistance in response to physical deformation.

REFERENCES:
patent: 4127775 (1978-11-01), Ohlson
patent: 4320766 (1982-03-01), Alihanka et al.
patent: 5019804 (1991-05-01), Fraden
patent: 5097495 (1992-03-01), Gray et al.
patent: 5105455 (1992-04-01), Kato et al.
patent: 5485502 (1996-01-01), Hinton et al.
patent: 5486700 (1996-01-01), Silberklang et al.

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