Abstract: A pulse transit time is measured non-invasively and used to calculate a blood pressure value. A method of determining one or more blood pressure values includes propagating an alternating drive current through a thorax of a subject via electrodes located on a wrist-worn device. Resulting voltage levels of the subject are sensed by the wrist-worn device. The voltage levels are processed to detect when a volume of blood is ejected from the left ventricle. Output from a pulse arrival sensor coupled to the wrist-worn device is processed to detect when a blood pressure pulse generated by ejection of the volume of blood from the left ventricle arrives at the wrist. A pulse transit time (PTT) for transit of the blood pressure pulse from the left ventricle to the wrist is calculated. One or more blood pressure values for the subject are determined based on the PTT.

Abstract: An optical system having a scope device includes a post extending from a rolling base. Electronic components for communicating with the scope device are located either underneath the base with appropriate clearance from the floor or within a cavity formed in the base. In one embodiment, the base includes a plurality of legs each having a roller or caster attached thereto. At least one of the legs may include a channel or passageway for routing an electrical power cord such that the cord extends out from a distal end of the leg. Further, an ON/OFF switch may be located on one of the legs such that one or more features of the optical system may be turned on or off by foot.

Abstract: A control system having a host computer and one or more control computers connected to an interface for control of a process or machinery. The control computers are capable of automatically initiated network address assignment and configuration when powered up after installation. The network address is based on a location identifier situated in the interface that corresponds to a specific connection thereof to the control computer. The control computer reads the location identifier from the interface and requests a network address. The host computer assigns the network address based on the location identifier. Configuration of the control computer then proceeds. The procedure applies to newly installed control computers, whether first time installment or a replacement for a failed control computer.

Abstract: The invention relates to a vaginal speculum including an upper assembly and a lower assembly. The upper assembly includes a first spoon portion and a single support bar connecting the first spoon portion to the first handle portion. The lower assembly includes a second spoon portion and a second handle portion. The single support bar of the upper assembly extends distally and in a posterior direction from the first and second spoon portions to provide an unobstructed view of an area between the first spoon portion and the second spoon portion.