A biosensor is implemented in an earpiece and includes an activity monitoring circuit that detects an activity level of a user and an optical circuit that detects a plurality of spectral responses at a plurality of wavelengths from light reflected from skin of the user. The biosensor determines a heart rate and an oxygen saturation level using the plurality of spectral responses and determines whether the heart rate or the oxygen saturation level reaches a predetermined threshold for the activity level of the user. The biosensor generates an alert and transmits the alert wirelessly to a remote device.

There is provided an aerosol generating device for heating an aerosol-forming substrate, including a storage portion for storing the aerosol-forming substrate and a vaporizer for heating the aerosol-forming substrate to form an aerosol. The storage portion has an outer housing and an internal passageway, the storage portion forming a reservoir for the aerosol-forming substrate between the outer housing and the internal passageway, and the vaporizer extends at least partially inside the internal passageway in the storage portion. The device further includes a porous interface at least partially lining the internal passageway for conveying the aerosol-forming substrate from the storage portion towards the vaporizer.

An optical circuit detects PPG signals reflected from skin tissue at one or more different wavelengths. A processing circuit integrated in the biosensor or in communication with the biosensor processes the PPG signals to obtain a level of vasodilation or a period of vasodilation. The processing circuit may determine a circulation level using a phase offset between the PPG signals and/or a correlation value between the PPG signals.

Inner ear treatment delivery devices and methods are disclosed. The device includes a pressurized container filled with a content, a control mechanism within the pressurized container, a nozzle coupled to the control valve, a microprocessor adapted to operate the control valve, and a power source providing energy to the device. The device administers at least one dose of the content to a patient's inner ear.

An electronic smoking article includes an outer tube extending in a longitudinal direction, an inner tube within the outer tube and including a pair of opposing slots, a liquid supply comprising a liquid material, a coil heater, a wick and a mouth end insert. The coil heater is located in the inner tube. The coil heater is formed of an iron-free, nickel-chromium alloy and has substantially uniformly spaced windings. The wick is surrounded by the coil heater such that the wick delivers liquid material to the coil heater and the coil heater heats the liquid material to a temperature sufficient to vaporize the liquid material and form an aerosol in the inner tube.

A biosensor detects a medication applied to an upper epidermal layer of skin of a user. The biosensor obtains at periodic intervals a concentration level of the medication in the upper epidermal layer of skin and surrounding tissue of the user. The biosensor may also detect the concentration level of the medication in an arterial blood flow of the patient or obtain a concentration level of a substance in the arterial blood flow, wherein the concentration level of the substance correlates to a first concentration level of the medication. The biosensor may determine an absorption rate of the medication in the upper epidermal layer of skin and surrounding tissue and in an arterial blood flow of the patient from the detected concentration levels of the medication obtained at the periodic intervals.

An electronic cigarette includes a liquid supply including liquid material, a heater operable to heat the liquid material to a temperature sufficient to vaporize the liquid material and form an aerosol, a wick in communication with the liquid material and in communication with the heater such that the wick delivers the liquid material to the heater, at least one air inlet operable to deliver air to a central air passage upstream of the heater, and a mouth end insert having at least two diverging outlets. The electronic cigarette can also include an air flow diverter which directs incoming air away from a heating zone of the heater.

There is provided an aerosol generating device for heating an aerosol-forming substrate, including a storage portion for storing the aerosol-forming substrate and a vaporizer for heating the aerosol-forming substrate to form an aerosol. The storage portion has an outer housing and an internal passageway, the storage portion forming a reservoir for the aerosol-forming substrate between the outer housing and the internal passageway, and the vaporizer extends at least partially inside the internal passageway in the storage portion. The device further includes a porous interface at least partially lining the internal passageway for conveying the aerosol-forming substrate from the storage portion towards the vaporizer.

This invention relates to an ingestible drug delivery device configured for wireless communication with other ingestible drug delivery devices.

A head-mounted respiratory assistance apparatus configured to provide a respiratory gases stream to a user. The head-mounted respiratory assistance has a main body securable to the head of a user and a blower unit that is operable to generate a pressurized gases stream from a supply of gases from the surrounding atmosphere. A patient interface is provided on the main body that has a gases inlet which is fluidly connected to the blower unit and which is configured to deliver the pressurized gases to the user's nose and/or mouth.