Cradle drive and release mechanism for use with a magnetic reson

Details Cradle drive and release mechanism for use with a magnetic reson Cradle drive and release mechanism for use with a magnetic reson

1984-12-18

1987-02-10

Watson, Robert C.

Work holders

Miscellaneous

74 37, A61G 1300

Patent

active

046418237

ABSTRACT:
There is provided a cradle drive apparatus for releasably engaging and for retrievably positioning a patient cradle in an advanced position on a bridge within the bore of an MR scanner and for returning the patient cradle to a home position on a patient transport table. The apparatus includes a cradle drive dolly disposed on the bridge for longitudinal movement thereon. A clutch disc is mounted on the dolly which also supports a clutch pad and bias means for enabling the clutch pad to frictionally engage the clutch disc. The clutch disc is fixedly secured to a drive sprocket which engages a drive belt. A motor is coupled to the drive belt to bidirectionally drive the cradle drive dolly on the bridge when the clutch pad frictionally engages the clutch disc and when the motor is energized.

REFERENCES:
patent: 4227421 (1980-10-01), Weishew
patent: 4262204 (1981-04-01), Mirabella
patent: 4281556 (1981-08-01), Weishew
patent: 4475072 (1984-10-01), Schwehr et al.
patent: 4545571 (1985-10-01), Chambron
patent: 4552347 (1985-11-01), Wallis

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