Abstract: A therapeutic bed (1) comprises a patient support platform (2) rotatably mounted on a base frame (5). A pair of side members (30) extend longitudinally of the patient support platform (2) and are mounted for pivotal movement about a longitudinal pivot axis from a raised operative position supporting a patient to a lowered inoperative position. Each side member (30) is carried on a pair of spaced-apart cranked support arms (34, 35) which are bridged by a bridging bar (42) to form a frame. A primary retaining device retains the side support in the raised position. Each support arm (34, 35) is pivotally mounted to a pivot support sleeve which is slidably mounted on a round bar (46) forming a track. A secondary retaining device is provided by a stop disc (48) having a slot (50) which is moved into and out of alignment with a latch (47) to control movement of the sleeve (45) on the bar (46).

Abstract: A therapeutic bed comprises a patient support platform 2 rotatably and pivotally secured within a main bed frame 3 through pivot mountings 4, the main bed frame being supported on a base frame 5 by two spaced-apart end uprights formed by a pair of hydraulic rams 6. Each ram is individually height adjustable and one of the pairs of rams is pivotally connected to the base frame by a crankshaft 7 which in turn is pivotally connected by a pivot 8 to the base frame. The other pair of rams is pivotally connected to the base frame by a shaft 9. An electric motor 10 drives a belt 15 to rotate or oscillate the patient support platform. The arc of oscillation of the patient support platform is controlled by a control unit which includes a potentiometer. Weighing means for the patient support platform is provided by a laod cell mounted between each of the pivot mountings and the main bed frame.