Patent ID: 8286283

Claim:
A patient support device for an operating theatre table having an integral rail alongside at least part of a table edge, the device comprising means to engage the rail, support means pivotally connected at one end to the rail engagement means and at an opposite end to a pad for contacting a patient's body, means for locking the support means in positions where the pad is overlying the table, further from the table than the rail and below the table, wherein the support means is a pair of arms, the upper arm being pivotally connected to the pad, the lower arm being pivotally connected to the rail engaging means and each arm being pivotally connected to the other, and further wherein the pivots all allow rotation of the parts only about mutually parallel axes that are parallel to a longitudinal axis of the table, and wherein the means for locking includes radial arrays of teeth which engage and disengage and a screw actuator assisted by a spring which allows the radial arrays to rotate for angular adjustment by sliding over each other while inter-engaged until the radial arrays are locked.