Abstract: A pulmonary drug delivery device including a drug delivery tube that defines a flow path, a droplet ejection device configured to eject droplets of medication into the flow path, and a fan that generates airflow within the flow path, the airflow being configured to carry the ejected medication droplets along the flow path.

Abstract: A pulmonary drug delivery device including a drug delivery tube that defines a flow path and a droplet ejection device configured to eject droplets of medication into the flow path. Using collected feedback, the pulmonary drug delivery device can control the size of the droplets that are administered to a user.

Abstract: Roadway and vehicular-mounted safety reflectors include a reflective field that incorporates a plurality of discrete crystals that internally reflect light and return the light in a desired directional pattern determined by the internal reflection characteristics and orientation of the crystals. The directional pattern is chosen to optimize the visibility and functionality of the reflector.

Abstract: In one embodiment, a system for pulmonary drug delivery includes a portable air supply unit comprising an air mover configured to generate a positive pressure airflow, a drug delivery unit configured to inject droplets of medication into the airflow generated by the air supply unit, and a user interface configured to deliver the airflow and droplets to a user.

Abstract: Systems and methods for delivery of a drug to the respiratory system of a patient in a stream of purified air are provided. In particular, the drugs are delivered to the respiratory system of the patient at a positive air pressure relatvie to atmopheric pressure. With the systems and methods of the present disclosure, medication available in a variety of forms is introduced in a controlled fashion into the air stream in aerosol, nebulized, or vaporized form.

Abstract: Systems and methods for delivery of a drug to the respiratory system of a patient where the drug is supplied at a positive pressure relative to atmospheric pressure are provided. In particular, the drugs are delivered to the respiratory system of a patient who is capable of unassisted breathing. With the systems and methods of the present disclosure, medication available in a variety of forms is introduced in a controlled fashion into the air stream in aerosol, nebulized, or vaporized form.

Abstract: Systems and methods for delivery of a drug to the respiratory system of a patient are provided, where the drug is supplied in purified air at a positive pressure relative to atmospheric pressure. With the systems and methods of the present disclosure, medication available in a variety of forms is introduced in a controlled fashion into the purified air stream in aerosol, nebulized, or vaporized form.

Abstract: Disclosed are personal respirators and clean air systems.

Abstract: Communication methods and apparatus using ultraviolet (UV) light are provided. Save UV communication devices, including remote control units, can use highly efficient UV LEDs and very low-noise UV photodetectors. In some cases, the LEDs emit light at wavelengths below 400 nm, below 320 nm, or even below 280 nm. In one embodiment, communication can be achieved using an LED that emits less than about 1 picowatt of UV energy at a photodetector distance of up to at least about 10 meters. Longer range communication can also be achieved at higher power levels. Photodetectors having very low dark currents at room temperature, such as below about 1×10?9 A/m2, are preferable.

Abstract: Roadway and vehicular-mounted safety reflectors include a reflective field that incorporates a plurality of discrete crystals that internally reflect light and return the light in a desired directional pattern determined by the internal reflection characteristics and orientation of the crystals. The directional pattern is chosen to optimize the visibility and functionality of the reflector.