Abstract: An apparatus for rotating subhuman primate animal test subjects about one or more axes to minimize trauma during simulated zero or micro-gravity studies. The timed roto-positioning apparatus has a frame, a subframe rotatably attached to the frame, and a carrier for a primate restraint system rotatably attached to the subframe. Two motors, controlled by a programmable controller, individually rotate the subframe and the carrier according to a preselected sequence. The preferred embodiment is a modified A-frame structure made from welded channel aluminum beams and equipped with casters and lifters to move and securely position the apparatus. A tube with rotatable fittings is used to supply drinking water to test animals and electrical slip rings are used for transmitting physiological sensor signals from the test animal through the rotating connections of the carrier, subframe and frame. Radio telemetry may be used in place of the electrical slip rings.

Abstract: A bone biopsy arrangement especially suited for use in obtaining axial skeleton trephine samples from the spinal vertebra centrum of a living test specimen in a safe and rapid manner. The disclosed arrangement uses radiographic mapping, precise mechanical control of the trephine with an apparatus disclosed in detail, conventional trephine energizing and a test speciment such as a rhesus monkey. Improved quality plural samples from a single test subject that were heretofore considered too inaccessible and dangerous for practicality are achieved.

Abstract: A bone biopsy arrangement especially suited for use in obtaining axial skeleton trephine samples from the spinal vertebra centrum of a living test specimen in a safe and rapid manner. The disclosed arrangement uses radiographic mapping, precise mechanical control of the trephine with an apparatus disclosed in detail, conventional trephine energizing and a test specimen such as a rhesus monkey. Improved quality plural samples from a single test subject that were heretofore considered too inaccessible and dangerous for practicality are achieved.