Abstract: An automatically controlled expansion stent having an expansible stent body, actuation means for expanding the stent body, and control means for actively controlling the actuation means. The stent body is substantially tubular and includes material layers covering a plurality of radial expansion trusses. The stent employs MEMS motors under the control of a programmable logic device to expand the trusses and the stent body. Force from the motor is communicated to the expansion trusses through interconnects, which pivotally connect the trusses and provide channels for pull wires extending from the motors to the trusses. The trusses comprise a plurality of hinged links which produce symmetrical expansion of the stent body when actuated by the MEMS motor.

Abstract: A multi-tool rotatable workbench of the present invention which includes a support structure and a work surface drum having work surfaces, the drum being rotatably disposed on the support structure. Each of the work surfaces includes tool attachment means for rapidly attaching and removing tools, work platforms, workpiece holding devices, and the like. Drum indexing and stop means are provided for selectively positioning and securing the work surface drum in such a configuration that at least one work surface is substantially level relative to the ground, while all other work surfaces are in a storage position.