A device and method for measuring a volume of liquid expelled from a syringe is provided. The device generally includes a syringe barrel, a plunger actuated with a plunger rod, and a sensor. The sensor may include two ports with one port being in fluid communication with a source of fluid external to the syringe barrel, while the second port is in fluid communication either with a proximal end portion of the syringe barrel or a hollow plunger rod having a first end closed by the plunger. The method may include expelling liquid from the syringe; detecting and recording differential pressure with the sensor over time; and calculating the volume of liquid expelled from the syringe from the recorded differential pressure over time.

A patient interface may include a dual chamber cushion assembly having a nasal chamber and an oral chamber. The nasal chamber may be arranged to deliver pressurized breathable gas to a patients nasal passages, and the oral chamber may be arranged to deliver pressurized breathable gas to the patients oral passages. The nasal chamber may be pressurized to a different level than an oral chamber to promote nasal breathing. An air passage may fluidly connect the nasal chamber and the oral chamber so that pressurized breathable gas may flow from the nasal chamber to the oral chamber.

Systems and methods for automatic intravenous injection in accordance with embodiments of the invention are illustrated. One embodiment includes a method for automatically injecting a needle into a vein. The method includes steps for identifying an injection position using a first set of one or more sensors, positioning an injection mechanism at the identified injection position, and vertically inserting a needle until entry in a vein is detected using a second set of one or more sensors.

Disclosed herein are methods, systems, and devices for controlling a gas mixture within a mechanical ventilator. According to one embodiment, a computer implemented method includes receiving first peripheral arterial oxygen saturation (SpO.sub.2) data from a pulse oximeter via a pulse oximeter interface, wherein the pulse oximeter is configured to monitor a patient receiving invasive ventilation; determining a first mode of operation for a ventilator mechanism, wherein the ventilator mechanism is configured to provide at least a portion of the invasive ventilation; determining first partial pressure of oxygen (PaO.sub.2) data stored in a first lookup table using the first SpO.sub.2 data, wherein the first lookup table is derived from a sigmoid shaped oxyhemoglobin dissociation curve; determining first fraction of inspired oxygen in air (FiO.sub.2) data for setting a mixture in a gas blender in the ventilator mechanism based on the first PaO.sub.2 data and a variable offset; and providing the FiO.sub.2 data to the ventilator mechanism.

Disclosed is an oral mucosa delivery system that allows a composition housed therein to be dispensed in different amount and/or for different duration. The delivery system may comprise a spray cap or an aerosol cap capable of controlling the delivery duration and/or amount by a mechanical or electronic means.

Shown is a simple, reliable manner of monitoring a process of expelling a variable dose of medicament from an injection device by analyzing mechanical feedback of the injection device with reduced requirements on signal data memory space and processing power. Specific measurand and mechanical user feedback sensor configurations enable sensor signal data from which individual dosage units of expelled drug are identifiable at moderate sampling rates. Preferred configurations include a force sensor adapted to measure an axial force component as applied to the device by a user pressing a proximal injection button, and a direction sensor adapted to measure an azimuth angle of an orientation of the device. The specific measurands, or process quantities observed, relate to feedback means of the device including a resilient element that produces a number of successive mechanical feedback events proportionate to a dose or quantity of drug expelled from a medicament reservoir.

Systems and methods for enhancing wellness in a habitable space are provided. In some forms, an example system for enhancing wellness in a habitable space includes a control system having a processor, communication circuitry, and a memory. The communication circuitry of the control system is configured to communicate with one or more devices positioned within the habitable space. One or more sensors may also be positioned proximate the habitable space to detect indicia (e.g., biometric characteristics of a user, behavioral characteristics of a user, and environmental characteristics) and communicate the detected indicia to the control system. Based at least in part on the detected indicia, the control system is configured to trigger initiation of a scene in the habitable space by communicating a signal to at least one of the devices in the habitable space to adjust operation thereof.

Techniques disclosed herein relate to automatic association of a non-medical device with a medical device. In some embodiments, the techniques involve accessing a user account provided by a cloud-based service, retrieving first identification information that is stored to the user account and identifies a medical device via the cloud-based service, receiving second identification information from the medical device, and establishing a secure communication link with the medical device based on determining that the second identification information corresponds to or matches the first identification information.

Disclosed herein are techniques related to medicine administration in dynamic networks. The techniques may involve identifying an amount of medicine for delivery to a patient and determining a communication path toward a first medicine administration device of a plurality of medicine administration devices in a mesh network. The plurality of medicine administration devices may further include a second medicine administration device that is prioritized over the first medicine administration device for delivering medicine to the patient. The techniques may further involve causing delivery of the amount of medicine to the patient by the first medicine administration device based on communicating the amount of medicine toward the first medicine administration device via the communication path when the amount of medicine remains undelivered by the second medicine administration device.

A sleep training device is disclosed comprising certain electronic components, audio components, light-emitting diodes (LEDs), physical switches, a capacitive touch component, or a combination thereof. The sleep training device can have a housing configured to house the electronic components, the audio components, the LEDs, the capacitive touch component, and at least part of the physical switches. The sleep training device can receive an instruction to schedule a sleep program based on a set parameter from another device in wireless communication with the sleep training device, initiate the sleep program once the set parameter is met, and disable at least one of the physical switches and the capacitive touch component when the sleep program is initiated.