Abstract: Systems and methods are disclosed that provide smart alerts to users, e.g., alerts to users about diabetic states that are only provided when it makes sense to do so, e.g., when the system can predict or estimate that the user is not already cognitively aware of their current condition, e.g., particularly where the current condition is a diabetic state warranting attention. In this way, the alert or alarm is personalized and made particularly effective for that user. Such systems and methods still alert the user when action is necessary, e.g., a bolus or temporary basal rate change, or provide a response to a missed bolus or a need for correction, but do not alert when action is unnecessary, e.g., if the user is already estimated or predicted to be cognitively aware of the diabetic state warranting attention, or if corrective action was already taken.

Abstract: A gear apparatus for controlling movement of an output by an input coupled to a power source. The apparatus an input member coupled to the input, an output member coupled to the output and the input member so that movement of the input member causes movement of the output, a selectably releasable member coupled to the input member and the output member, wherein the selectably releasable member remains in a fixed position while the input member and the output member move, and a releasable member brake mechanism coupled to the selectably releasable member, wherein the releasable member brake mechanism is arranged to prevent movement of the selectably releasable member when the input member and the output member move and to allow back driving of the selectably releasable member.

Abstract: A backdrive braking element is provided for preventing backdrive of a shaft. It includes a poly-lobed locking mechanism including an unlock shaft that has a polygon shaped inside profile and is coupled to a poly lock drive and brake assembly. The poly lock drive and brake assembly includes a plurality of poly lock drive and brake segments and is contained within the interior cavity of a housing.

Abstract: A self-locking apparatus for a gear set permits forward-driving an input in clockwise or counterclockwise directions and substantially prevents an output from being driven in either or both of those directions. The device includes a gear set with planet gears arranged within a planet carrier within a fixed ring gear. Each of the planet gears is engaged with the planet carrier via a differentiating connector retained in an elongated slot in the planet carrier where it moves to the clockwise position when being forward driven in the clockwise direction and, when the planet carrier is back driven in the clockwise direction, the connector moves to the counter-clockwise position in the slot. This arrangement allows the gear set to be forward driven but not back driven. This differentiated action can engage/disengage with any form of unidirectional engage/disengage mechanism. The apparatus is useful in industrial applications requiring self-locking gear sets.

Abstract: A gear apparatus for controlling movement of an output by an input coupled to a power source. The apparatus an input member coupled to the input, an output member coupled to the output and the input member so that movement of the input member causes movement of the output, a selectably releasable member coupled to the input member and the output member, wherein the selectably releasable member remains in a fixed position while the input member and the output member move, and a releasable member brake mechanism coupled to the selectably releasable member, wherein the releasable member brake mechanism is arranged to prevent movement of the selectably releasable member when the input member and the output member move and to allow back driving of the selectably releasable member.

Abstract: A backdrive braking element is provided for preventing backdrive of a shaft. It includes a poly-lobed locking mechanism including an unlock shaft that has a polygon shaped inside profile and is coupled to a poly lock drive and brake assembly. The poly lock drive and brake assembly includes a plurality of poly lock drive and brake segments and is contained within the interior cavity of a housing.

Abstract: A self-locking apparatus for a gear set permits forward-driving an input in clockwise or counterclockwise directions and substantially prevents an output from being driven in either or both of those directions. The device includes a gear set with planet gears arranged within a planet carrier within a fixed ring gear. Each of the planet gears is engaged with the planet carrier via a differentiating connector retained in an elongated slot in the planet carrier where it moves to the clockwise position when being forward driven in the clockwise direction and, when the planet carrier is back driven in the clockwise direction, the connector moves to the counter-clockwise position in the slot. This arrangement allows the gear set to be forward driven but not back driven. This differentiated action can engage/disengage with any form of unidirectional engage/disengage mechanism. The apparatus is useful in industrial applications requiring self-locking gear sets.

Abstract: A self-locking device for a gear set is configured to permit forward-driving an input in either of first and second rotational directions and for substantially preventing an output from being back-driven in either of the rotational directions. The device includes a gear disposed to rotate with a drive shaft. The device further includes first and second releasable couplings coupled to the gear and, respectively, to first and second ratchets. The first ratchet is disposed to prevent rotation in a first direction and to permit rotation in a second direction. The second ratchet is disposed to prevent rotation in the second direction and permit rotation in the first direction. The device may be useful, for example, in a valve gearbox. A gearbox and a method of fabricating a gearbox are also disclosed.

Abstract: A self-locking device for a gear set is configured to permit forward-driving an input in either of first and second rotational directions and for substantially preventing an output from being back-driven in either of the rotational directions. The device includes a gear disposed to rotate with a drive shaft. The device further includes first and second releasable couplings coupled to the gear and, respectively, to first and second ratchets. The first ratchet is disposed to prevent rotation in a first direction and to permit rotation in a second direction. The second ratchet is disposed to prevent rotation in the second direction and permit rotation in the first direction. The device may be useful, for example, in a valve gearbox. A gearbox and a method of fabricating a gearbox are also disclosed.

Abstract: An improved declutch mechanism for a manual override for a valve. The declutch mechanism includes a U-shaped declutch layer that is fit with a spring-biased locking bar. The locking bar is biased to engage the housing of the override mechanism to prevent accidental or inadvertent operation of the declutch lever. A single hand may be used to disengage the locking bar from the housing to allow operation of the declutch lever. The declutch mechanism also includes a safety mechanism to prevent the override mechanism from being disengaged when its actuator shaft is not in the default position. The safety mechanism includes a plunger that is movable between a first position in which the plunger prevents the locking bar from being disengaged with the housing, and a second position in which the plunger is received within a keyway in the actuator shaft to allow the locking bar to be disengaged from the housing.

Abstract: An I. V. stabilizer has an elongated rectangular arm support pad onto which eight hook and loop fastener straps are secured. The straps are spaced along the length of the pad in four sets of two. Each set of the four straps and the arm support pad has an inner lining of padded foam material and a sterile cotton backing. The arm support pad as a central enclosed plastic stiffener which extends along the length of the pad. In use, a person's arm is placed on the support pad and the I. V. needle is then inserted. The four inner straps are wrapped around the person's arm and supported by cooperating hook and loop fasteners on the cotton backing of the support pad. The I. V. tube is then looped over the inner straps and the outer straps are then wrapped over the I. V. tube, and around the individual's arm and secured by hook and loop fasteners on the cotton backing of the support pad. In this manner, a secure support of an I. V. needle and tube is provided, preventing the I. V.