Methods and vaporizer apparatuses that estimate, measure and/or predict the amount of vapor and/or material (including active ingredients) released by the vaporizer apparatus. In particular, described herein are electronic vaporizers and methods of using them that determine a dose/amount of vapor and/or a material in the vapor based primarily or exclusively on the electrical and thermal properties, e.g., power or energy applied to the vaporizing element (e.g., heating coil) and the temperature of the material immediately before and as it is vaporized. Dose information may be used to control operation of the device and/or reported to the user.

Disclosed herein are embodiments of a wound treatment apparatus with electronic components integrated within a wound dressing. In some embodiments, a wound dressing apparatus can comprise a wound dressing. The wound dressing can comprise an absorbent material, an electronics unit comprising a negative pressure source, the electronics unit integrated within the wound dressing and at least partially encapsulated by a flexible film. The flexible film can comprise a window or aperture configured to permit fluid communication between the absorbent material and the negative pressure source.

The invention relates to device (1) for measuring volumes of a liquid in a container (B) by means of measuring emitted high-frequency radiation, comprising control unit (C), a transmitter (TX), at least one first transmitting antenna (ANT_TX1) and at least one second transmitting antenna (ANT_TX2), at least one receiving antenna (ANT_RX1) and a receiver (RX), wherein the transmitter (TX) is configured to emit high-frequency radiation when in operation, wherein the first transmitting antenna (ANT_TX1) and the second transmitting antenna (ANT_TX2) are configured to emit high-frequency radiation during operation so that radiation can reach the container (B), wherein first receiving antenna (ANT_RX1) is configured to record high-frequency radiation reflected from the container (B), wherein the receiver (RX) is configured to take up the high-frequency radiation received by the receiving antenna (ANT_RX1), wherein the control unit (C) is configured to control the transmitters so that the transmitter (TX) emits high-frequency radiation, and wherein the control unit (C) is also configured to evaluate high-frequency radiation taken up by the receiver (RX) so that a measurement of the volume of the liquid in the container (B) is determined, wherein the measurement of the volume of liquid in the container (B) is determined from channel state information. The invention also relates to device (1) for measuring volumes of a liquid in a container (B) by means of measuring emitted high-frequency radiation, comprising a control unit (C), a transmitter (TX), at least one first transmitting antenna (ANT_TX1) and at least one second transmitting antenna (ANT_TX2), a least one first receiving antenna (ANT_RX1) and a second receiving antenna (ANT_RX2) and a receiver (RX), wherein the transmitter (TX) is configured to emit high-frequency radiation when in operation, wherein the first transmitting antenna (ANT_TX1) and the second transmitting antenna (ANT_TX2) are configured to emit high-frequency radiation during operation so that radiation can reach the container (B), wherein the first receiving antenna (ANT_RX1) is configured to record high-frequency radiation reflected from the container (B), wherein the second receiving antenna (ANT_RX2) is configured to record high-frequency radiation transmitted from the container (B), wherein the control unit (C) is configured to control the transmitters so that the transmitter (TX) emits high-frequency radiation, and wherein the control unit (C) is also configured up to evaluate high-frequency radiation taken up by the r

An injection system can have a Syringe Dose and Position Apparatus (SDPA) mounted to a syringe. The SDPA can have one or more circuit boards. The SDPA can include one or more sensors for determining information about an injection procedure, such as the dose measurement, injection location, and the like. The SDPA can also include a power management board, which can be a separate board than a board mounted with the sensors. The syringe can also include a light source in the needle. Light emitted from the light source can be detected by light detectors inside a training apparatus configured to receive the injection. The syringe can have a power source for powering the sensors and the light source. The SDPA and the power source can be mounted to the syringe flange.

A computer-implemented medical system is provided. The system includes a docking station and a mobile machine. The system is configured to perform operations comprising: receiving, by the mobile machine and from a user, a request to transport the mobile machine to a target location to perform a medical treatment; automatically navigating the mobile machine to the target location; performing, by the mobile machine, the medical treatment on a patient; determining, by the mobile machine, that the medical treatment is completed and the mobile machine is disconnected from the patient; automatically navigating the mobile machine to a stationary docking station of the medical system; and determining that the mobile machine is connected to the docking station through one or more connectors, and in response, receiving, by the mobile machine, at least one of an electrical charge, a refill of one or more supplies, a cleaning, or a drain of waste.

An apparatus including tubing sets, a modular constraint assembly, and methods of use are described for deliver a therapeutic medication to a patient, the apparatus can have a controller and a sensor. The controller is configured to receive data from the sensor, and to start and stop delivery of the therapeutic medication to the patient in response to data received from the sensor. In addition, apparatus, systems and methods are disclosed, which are configured to deliver a therapeutic medication to a patient. The apparatus, system and methods use a reservoir, a patient interface, a tubing set, a modular constraint assembly connected to the tubing sets, and a fluid pump, and the components are configured to provide a calibrated flow rate based upon specific characteristics of the therapeutic medications passing through and internal lumen of the tubing set.

A fluid separation device includes a centrifugal separator configured to receive a centrifugal separation chamber of a disposable fluid flow circuit, a pump system configured to convey a fluid into the centrifugal separation chamber and to remove a separated fluid component from the centrifugal separation chamber via an outlet, a color-based interface monitoring system configured to determine an interface position between separated fluid components continuously flowing through the centrifugal separation chamber based on dominant wavelength measurements of layers of separated fluid components during a centrifugal separation procedure, and a controller configured to measure the dominant wavelengths of the layers, calculate a duration as a color time for each measured dominant wavelength, set target color times, calculate error signals and calculate control signals to adjust the pump system to control the flow rate and interface position.

Disclosed embodiments relate to apparatuses and methods for wound treatment. A wound dressing apparatus can comprises a wound contact layer, at least one absorbent layer, an electronics unit comprising a negative pressure source unit, and a cover layer. The electronics unit can comprise a plurality of sensors positioned on a printed circuit board and an inlet protection mechanism of the negative pressure source unit comprises a first recess in fluid communication with a first sensor and the outlet or exhaust mechanism negative pressure source unit comprises a second recess in fluid communication with a second sensor.

The disclosed embodiments are directed to secondary methods of communicating with a drug delivery device when the primary method is unavailable. Secondary methods include the use of a pattern of taps on the housing of the drug delivery device to convey authentication information and commands to the drug delivery device. Feedback confirming the interpretation of the pattern of taps may be provided to the user via a vibration, sound, or blinking lights.

An example medical device includes a sensor configured to sense a parameter of interest that changes as a function of a hemodialysis treatment parameter and generate a signal indicative of the sensed parameter of interest. The medical device includes memory configured to store an association between the parameter of interest and the hemodialysis treatment parameter. The medical device includes processing circuitry configured to receive the signal from the sensor. The processing circuitry also is configured to determine a modification to the hemodialysis treatment parameter based on the signal indicative of the parameter of interest and the association. The processing circuitry is also configured to automatically modify the hemodialysis treatment parameter based on the determined modification.