Abstract: Tank-installable switches for installation through a thief hatch port on a tank. In some embodiments, the switch may comprise a tubular body and a liquid level sensor. The liquid level sensor may include: a detector; a float in and moveable along a length of the lower end; and a rod connecting the float to the detector. The liquid level sensor may be configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed.

Abstract: An apparatus for assisting with alignment of a dropping nozzle of an eye dropper bottle includes a tubular hub configured for selective engagement with the dropping nozzle to laterally surround the dropping nozzle within a hub lumen thereof. A first semispherical disc has a first center aperture which laterally surrounds an outer wall of the tubular hub and a first disc body which is semispherically curved. A second semispherical disc has a second center aperture which laterally surrounds the outer wall of the tubular hub and a second disc body which is semispherically curved. The first and second disc rims are attached together at a rim perimeter to laterally enclose a substantially fluid tight toroidal indicator space. At least one user-perceptible liquid is located within the indicator space, the liquid shifting with respect to the tubular hub under influence of gravity responsive to an angular position of the tubular hub.

Abstract: An implantable assembly for managing eye disease has a passive flow structure to drain aqueous humor, AH, and a pump coupled to the passive flow structure to force the AH through the passive flow structure. The pump is configured to be activated, to thereby accelerate drainage of the AH through the passive flow structure, only when powered directly from a wireless power transfer source that is external to the eye and that is brought into proximity with the eye. Other aspects are also described and claimed.

Abstract: Insect storage and dispensing system are described. An example system may include a dispensing container including at least one wall defining an interior volume for retaining a plurality of adult insects. The system may also include a piston that extends through a first opening of the dispensing container so as to expose a top face of the piston to the interior volume. Longitudinal movement of the piston toward a second opening of the dispensing container may dispense a portion of the plurality of insects from the dispensing container when the plurality of insects is retained in the dispensing container.

Abstract: Systems and methods for continuous insects sensing are described. One example method includes receiving a flow at a singulator, the flow comprising one or more insects; singulating the insects into a single-file flow of insects; sensing, using a sensor, insects within the single-file flow of insects; and incrementing a counter based on each sensed insects in the single-file flow of insects.

Abstract: Tank-installable switches for installation through a thief hatch port on a tank. In some embodiments, the switch may comprise a tubular body and a liquid level sensor. The liquid level sensor may include: a detector; a float in and moveable along a length of the lower end; and a rod connecting the float to the detector. The liquid level sensor may be configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed.

Abstract: Systems and methods for continuous insect pupae sensing are described. One example method includes receiving a flow at a singulator, the flow comprising one or more insect pupae; singulating the insect pupae into a single-file flow of insect pupae; sensing, using a sensor, insect pupae within the single-file flow of insect pupae; and incrementing a counter based on each sensed insect pupae in the single-file flow of insect pupae.

Abstract: A tank fill control apparatus comprising: a tank-installed switch, including: a tubular body including an upper end, a lower end, and an annular mounting flange on an outer surface between the upper end and the lower end; a liquid level sensor including a detector, a float in and moveable along a length of the lower end and a rod connecting the float to the detector, the liquid level sensor configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed; and a control unit in communication with the tank-installed switch including: a liquid level monitoring function for receiving the signal from the liquid level sensor; and a control function for generating at least one of (i) an alert signal indicating that the maximum selected liquid level is sensed and (ii) a valve control to modify a fill operation from a tank fill system.

Abstract: Insect storage and dispensing system are described. An example system may include a dispensing container including at least one wall defining an interior volume for retaining a plurality of adult insects. The system may also include a piston that extends through a first opening of the dispensing container so as to expose a top face of the piston to the interior volume. Longitudinal movement of the piston toward a second opening of the dispensing container may dispense a portion of the plurality of insects from the dispensing container when the plurality of insects is retained in the dispensing container.

Abstract: Devices, systems, and methods for delivering fluid are provided. Devices include a housing configured for intravaginal deployment and retention, at least one reservoir configured to contain a fluid, and a fluid dispensing mechanism configured to dispense the fluid past the cervix and to the uterus of the subject. Methods include intravaginally deploying and retaining a device in the subject, and dispensing the fluid from the device such that the fluid is driven past the cervix to the uterus of the subject.

Abstract: A device can include a capsule containing an array of microneedles and a mechanical actuator. The device can be in an ingestible form for delivery to a duodenum or other target location within a subject and can release the mechanical actuator from constraint by the capsule in response to stimuli or conditions in or en route to the duodenum or other target location. The mechanical actuator upon release from constraint by the capsule can expand outwardly (e.g., responsive to a bias provided by a flexibly resilient material of the mechanical actuator) in a direction away from a central longitudinal axis of the mechanical actuator and drive the array of microneedles into penetrating engagement with a lining of the duodenum or other target location. The penetrating engagement can facilitate delivery of a biotherapeutic agent or other payload via the microneedles.

Abstract: An apparatus for tracking an amount of dispensed fluid, a system for fluid injection including the apparatus, and related methods of use are described. In an embodiment, the apparatus includes a dosage meter shaped to couple with a leadscrew and a cartridge containing a fluid for injection, and configured to track fluid injection. In an embodiment, the dosage meter includes an index wheel including a plurality of teeth, wherein the index wheel is shaped to position coaxially with a major axis of the leadscrew and to receive rotational motion from the leadscrew; and a cantilevered protrusion positioned to deflect due to contact with the plurality of teeth as the index wheel rotates coaxially with the leadscrew inducing a strain in the cantilevered protrusion, wherein the dosage meter outputs a signal indicative of the strain.

Abstract: A tank fill control apparatus comprising: a tank-installed switch, including: a tubular body including an upper end, a lower end, and an annular mounting flange on an outer surface between the upper end and the lower end; a liquid level sensor including a detector, a float in and moveable along a length of the lower end and a rod connecting the float to the detector, the liquid level sensor configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed; and a control unit in communication with the tank-installed switch including: a liquid level monitoring function for receiving the signal from the liquid level sensor; and a control function for generating at least one of (i) an alert signal indicating that the maximum selected liquid level is sensed and (ii) a valve control to modify a fill operation from a tank fill system.

Abstract: Devices, systems, and methods for delivering fluid are provided. Devices include a housing configured for intravaginal deployment and retention, at least one reservoir configured to contain a fluid, and a fluid dispensing mechanism configured to dispense the fluid past the cervix and to the uterus of the subject. Methods include intravaginally deploying and retaining a device in the subject, and dispensing the fluid from the device such that the fluid is driven past the cervix to the uterus of the subject.

Abstract: A method of joining fiberglass-reinforced composite pipes includes joining an inner tube of each pipe by fusion to form a fused bond, joining fiber reinforced polymer tubes of each pipe by depositing a silica glass particle epoxy directly on the fused bond and on bonded edges of the fiber reinforced polymer tubes as a composition to cover tube edges and the fused inner tube bond, and curing the composition.

Abstract: An apparatus for tracking an amount of dispensed fluid, a system for fluid injection including the apparatus, and related methods of use are described. In an embodiment, the apparatus includes a dosage meter shaped to couple with a leadscrew and a cartridge containing a fluid for injection, and configured to track fluid injection. In an embodiment, the dosage meter includes an index wheel including a plurality of teeth, wherein the index wheel is shaped to position coaxially with a major axis of the leadscrew and to receive rotational motion from the leadscrew; and a cantilevered protrusion positioned to deflect due to contact with the plurality of teeth as the index wheel rotates coaxially with the leadscrew inducing a strain in the cantilevered protrusion, wherein the dosage meter outputs a signal indicative of the strain.

Abstract: A tank fill control apparatus comprising: a tank-installed switch, including: a tubular body including an upper end, a lower end, and an annular mounting flange on an outer surface between the upper end and the lower end; a liquid level sensor including a detector, a float in and moveable along a length of the lower end and a rod connecting the float to the detector, the liquid level sensor configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed; and a control unit in communication with the tank-installed switch including: a liquid level monitoring function for receiving the signal from the liquid level sensor; and a control function for generating at least one of (i) an alert signal indicating that the maximum selected liquid level is sensed and (ii) a valve control to modify a fill operation from a tank fill system.

Abstract: Devices, systems, and methods for delivering fluid are provided. Devices include a housing configured for intravaginal deployment and retention, at least one reservoir configured to contain a fluid, and a fluid dispensing mechanism configured to dispense the fluid past the cervix and to the uterus of the subject. Methods include intravaginally deploying and retaining a device in the subject, and dispensing the fluid from the device such that the fluid is driven past the cervix to the uterus of the subject.

Abstract: Insect storage and dispensing system are described. An example system may include a dispensing container including at least one wall defining an interior volume for retaining a plurality of adult insects. The system may also include a piston that extends through a first opening of the dispensing container so as to expose a top face of the piston to the interior volume. Longitudinal movement of the piston toward a second opening of the dispensing container may dispense a portion of the plurality of insects from the dispensing container when the plurality of insects is retained in the dispensing container.

Abstract: Retention devices and methods are provided for drug delivery. The device may include a housing configured for intraluminal deployment into a human or animal subject and at least one reservoir contained within the housing. The at least one reservoir may have an actuation end and a release end and contain at least one drug formulation. A plug may be contained within the at least one reservoir and be moveable from the actuation end toward the release end. The device may also include an actuation system operably connected to the actuation end of the at least one reservoir and configured to drive the at least one drug formulation from the reservoir. The device may also include at least one retention member affixed to the housing and movable between a non-stressed position, a deployment position, and a retention position for retaining the device in an intraluminal location in the subject.