This disclosure relates to a method for determining a fluid balance between a first volume flow in a first section of a fluid circuit and a second volume flow of a second section of the fluid circuit. The method may also include adjusting, assuming or detecting a first temperature in the first section of the fluid circuit and a second temperature in the second section of the fluid circuit, or detecting a temperature difference between the first and the second sections. The method may also include detecting a second volume flow in a second section of the fluid circuit and forming a balance from at least the first volume flow and a corrected value of the second volume flow. The corrected value is determined from the detected second volume flow and the second temperature and/or the temperature difference.

An arrangement and a process filter out at least one gas from a gas mixture. A filter unit (4) of the filter arrangement comprises an inlet and an outlet and is adapted to filter the gas out of the gas mixture while the gas mixture flows through the filter unit (4). The filter unit (4) takes up the gas and heats up in the process. A filter temperature sensor (46, 46.2) of the filter arrangement is adapted to measure at least once an indicator of the temperature in a first measuring area (MP, MP.2) inside the filter unit (4). Depending on the measured temperature, a message is generated and output in a form perceptible by a human being. This message includes information about the current state of the filter unit (4).

An extracorporeal blood treatment apparatus (1) comprising a control unit (10) connectable to a blood warming device (200). The apparatus (1) comprises: an extracorporeal blood circuit (100) and at least one infusion line (15, 21, 25) connected to the extracorporeal blood circuit (100). A control unit (10) is configured to execute the following procedure: receiving a first value representative of a desired blood temperature (T.sub.des) at an end (70) of a blood return line (7) configured to be connected to a venous vascular access of a patient (P); receiving at least a first signal relating to at least a flow rate (Q.sub.PBP, Q.sub.REP1, Q.sub.REP2) of an infusion fluid in the at least one infusion line (15, 21, 25); calculating a set point value of an operating parameter (T.sub.OUT; P.sub.w) to be imposed on the warming device (200) configured to heat a blood heating zone (H) of the extracorporeal blood circuit (100) in order to maintain the desired blood temperature (T.sub.des) at the end (70) of the blood return line (7). The set point is calculated based on input parameters comprising: at least the first value representative of the desired blood temperature (T.sub.des) and at least one selected in the group of: the first signal (Q.sub.REP1, Q.sub.PBP, Q.sub.REP2) and a second value representative of a temperature (T.sub.REP1, T.sub.PBP, T.sub.REP2) of the at least one infusion fluid in the at least one infusion line (15, 21, 25).

An aerosol delivery device includes at least one housing structured to retain an aerosol precursor composition, and an atomizer. A microprocessor is configured to operate in an active mode in which the control body is configured to control the atomizer to activate and produce an aerosol from the aerosol precursor composition. A heart rate monitor is configured to obtain biopotential measurements from a user, the biopotential measurements forming an identifier of the user. The microprocessor is operably coupled with the heart rate monitor and is configured to perform a biometric authentication of the user based on the identifier, and to control operation of at least one functional element of the aerosol delivery device based on the biopotential measurements, with the controlling operation of at least one functional element including altering a locked state of the aerosol delivery device based on the biometric authentication.

A control method for a vaporization amount includes: obtaining a vaporization distance between a vaporization apparatus and a vaporization object; determining a target vaporization power according to the vaporization distance, such that, if the vaporization distance is greater than or equal to a first threshold, the target vaporization power is a maximum vaporization power of the vaporization apparatus, and if the vaporization distance is less than the first threshold, the target vaporization power is determined according to a positive correlation between the vaporization distance and a vaporization power; and controlling a power of the vaporization apparatus according to the target vaporization power to adjust a vaporization amount of the vaporization apparatus.

A medical device includes a housing, a power supply, a thermally conductive mounting clamp, a heat shield, and at least one fastener. The housing includes a handle. The power supply is disposed within the housing. The thermally conductive mounting clamp is attached to an outer surface of the housing. The heat shield is disposed within the housing adjacent to the power supply. The heat shield is disposed against at least one interior surface of the handle. The at least one fastener passes through at least one opening in the housing and is in thermally conductive contact with the thermally conductive mounting clamp. Heat generated by the power supply is configured to dissipate from the power supply, through the heat shield, through the at least one fastener, and into the thermally conductive mounting clamp.

A medical device includes a housing, a power supply, a thermally conductive mounting clamp, a heat shield, and at least one fastener. The housing includes a handle. The power supply is disposed within the housing. The thermally conductive mounting clamp is attached to an outer surface of the housing. The heat shield is disposed within the housing adjacent to the power supply. The heat shield is disposed against at least one interior surface of the handle. The at least one fastener passes through at least one opening in the housing and is in thermally conductive contact with the thermally conductive mounting clamp. Heat generated by the power supply is configured to dissipate from the power supply, through the heat shield, through the at least one fastener, and into the thermally conductive mounting clamp.

Vaporization element, device and method for vaporizing phyto material. A hollow member defining a fluid pathway is positioned proximate a heating element with a phyto material contact surface. An electrical heater is positioned on the opposite side of the phyto material contact surface. Phyto material or extract deposited on the phyto material contact surface can be vaporized by heat from the electrical heater. The vapor can enter the fluid pathway and pass through the hollow member to an inhalation aperture. The electrical heater may be powered by an electrical power source provided in a support unit. The hollow member can be mounted to a vapor processing device that cools and/or filters the vapor before it reaches the inhalation aperture. The support unit may have securement mechanisms to attach the vapor processing device to the vaporization device.

A respiratory flow therapy apparatus including a sensor module can measure a flow rate of gases or gases concentration provided to a patient. The sensor module can be located after a blower and/or mixer. The sensor module can include at least an ultrasonic transmitter, a receiver, a temperature sensor, a pressure sensor, a humidity sensor and/or a flow rate sensor. The receivers can be immersed in the gases flow path. The receivers can cancel delays in the transmitters and improve accuracy of measurements of characteristics of the gases flow. The receivers can allow for detection of a fault condition in a blower motor of the apparatus.

An improved system and method of controlling the operation of a respiratory or surgical humidifier system that can provide humidified gases of substantially constant humidity in dependence upon only one monitored variable, being signals received from a temperature sensor. A power controller can be configured to control a level of power supplied to a heater plate in dependence upon heater plate temperature and a humidity profile so as to drive an operating point of the humidifier towards the humidity profile. The rate of change of a heater plate temperature setpoint can be variably controlled in dependence upon a heater plate temperature setpoint and heater plate temperature.