Patient's support arrangement for an X-ray apparatus

Details Patient's support arrangement for an X-ray apparatus Patient's support arrangement for an X-ray apparatus

1975-11-18

1977-04-19

Smith, Alfred E.

Radiant energy

Luminophor irradiation

250446, 250449, G21K

Patent

active

040190595

ABSTRACT:
A patient's support arrangement for an X-ray apparatus, consisting of a patient's support pallet and a drive means for effecting the circular movement thereof about a horizontal rotational axis, as well as means for adjusting the support pallet in relationship to the rotational axis. Drive means for effecting the rotation of the support pallet or repository about a horizontal rotational axis located in the region of a patient resting thereon (isocentric movement) possesses a drive motor, as well as two servomotors with a control device for the control thereof and which consists of an arrangement for the setting of the reference values and a further arrangement for the determination of the actual values, as well as a servocontrol device for the correlation or balancing of reference and actual values whereby on a reference value transmitter, there are selectable the coordinates for the determination of the position of the patient rotational axis relative to the support pallet (patient coordinates), as well as the coordinates for the determination of the position of the virtual rotational axis within the movement space (spatial coordinates), and in which an actual value transmitter is associated with each servomotor for determination of the actual value of the patient support axis determined in patient coordinates in the spatial coordinate system, and which actuates the automatic control of the servomotors upon the incidence of a difference between the reference and actual value for the purposes of effecting a balancing therebetween.

REFERENCES:
patent: 1958555 (1934-05-01), Wantz
patent: 3328582 (1967-06-01), Morel
patent: 3396274 (1968-08-01), Hogan
patent: 3473024 (1969-10-01), Feiertag
patent: 3585386 (1971-06-01), Horton

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