One or more sensors are configured for detection of characteristics of moving objects and living subjects for human identification or authentication. One or more processors, such as in a system of sensors or that control a sensor, may be configured to process signals from the one or more sensors to identify a person. The processing may include evaluating features from the signals such as breathing rate, respiration depth, degree of movement and heart rate etc. The sensors may be radio frequency non-contact sensors with automated detection control to change detection control parameters based on the identification of living beings, such as to avoid sensor interference.

Architectures for production of nitric oxide (NO) include systems and methods for generating NO having one or more plasma chambers configured to ionize a reactant gas to generate a plasma for producing a product gas containing NO using a flow of the reactant gas through one or more plasma chambers; a controller configured to regulate the amount of nitric oxide in the product gas using one or more parameters as an input to the controller, one or more parameters including information from a plurality of sensors configured to collect information relating to at least one of the reactant gas, the product gas, and a medical gas into which product gas flows; and a flow divider configured to divide a product gas flow from the plasma chamber into a first product gas flow to provide a variable flow to a patient inspiratory flow and a second product gas flow.

A process for ventilating a patient as well as a devicepatient module (20)operating according to the process, wherein, for example, a body weight value concerning an estimated body weight of the patient is transmitted to a patient module (20) intended for ventilating the patient, wherein the patient module (20) automatically selects ventilation parameters (52) fitting the body weight value on the basis of the body weight value and wherein the ventilation of the patient is carried out with the selected ventilation parameters (52).

In some additional aspects, an apparatus for generating nitric oxide (NO) can include one or more pairs of electrodes configured to initiate a series of electric arcs to synthesize a reactant gas into a product gas comprising NO, a sensor configured to measure a flow of a gas in a respiratory system into which the product gas is provided, a controller in communication with the one or more pairs of electrodes and the sensor. The controller is configured to adjust at least one of a pulse width, pulse period, pulse count per pulse group, pulse groups per second, energy generated by the one or more pairs of electrodes, arc frequency, arc current, and a voltage supplied to the one or more pairs of electrodes based on the measured flow to control a concentration of nitric oxide in the product gas.

A system for generating nitric oxide can include an apparatus positioned in a trachea of a mammal, the apparatus including a respiration sensor for collecting information related to one or more triggering events associated with the trachea, an oxygen sensor for collecting information related to a concentration of oxygen in a gas, and one or more pairs of electrodes for initiating a series of electric arcs to generate nitric oxide, and the system for generating nitric oxide can also include a controller for determining one or more control parameters based on the information collected by the respiration sensor and the oxygen sensor, wherein the series of electric arcs is initiated based on the control parameters determined by the controller.

A medical measuring device (2), as well as to a ventilator (1), as well as to a method for operating a medical measuring device (2) or a ventilator are provided. The medical measuring device (1) includes a sensor system (14) and measuring, signal processing and calculating device (21), to detect an inspiratory measured variable, which represents an indicator for the transport of breathing gases into the lungs of a patient (80), and an expiratory measured variable, which represents an indicator for the transport of breathing gases out of the lungs of a patient (80), and to determine an indicator for a ventilation-related shifting of secretion from the expiratory measured variable and the inspiratory measured variable.

In some additional aspects, an apparatus can include a chamber having an inlet valve for receiving a reactant gas and an outlet valve for delivering a product gas, a piston positioned inside the chamber and configured to move along a length of the chamber for adjusting pressure in the chamber, a sensor for collecting information related to one or more conditions of a respiratory system associated with a patient, a controller for determining one or more control parameters based on the collected information, and one or more pairs of electrodes positioned inside the chamber for initiating a series of electric arcs external to the patient to generate nitric oxide based on the determined control parameters.

The present technology relates to the field of medical monitoring, and, in particular, to non-contact detecting and monitoring of patient breathing. Systems, methods, and computer readable media are described for calculating a change in depth of a region of interest (ROI) on a patient. In some embodiments, the systems, methods, and/or computer readable media can identify steep changes in depths. For example, the systems, methods, and/or computer readable media can identify large, inaccurate changes in depths that can occur at edge regions of a patient. In these and other embodiments, the systems, methods, and/or computer readable media can adjust the identified steep changes in depth before determining one or more patient respiratory parameters.

A ventilator or anesthesia device and method create a reference state and record a measured value as a reference value. A gas delivery unit is activated after the ending of the reference state to build up pressure in a breathing circuit. A comparison measured value is determined with a pressure or flow sensor. A deviation of the measured value from the reference value in relation to a predefined or predefinable expected value is monitored based on the comparison. A warning message is issued depending on a result of the comparison. A drop in pressure in the breathing circuit is caused after the recording of the comparison measured value and a further comparison measured value is recorded following the drop in pressure. A deviation of the further comparison measured value from the reference value leads to a further warning message when the deviation does not correspond to the further expected value.

A reservoir configured to retain a volume of liquid for use in an apparatus for humidifying a flow of pressurised air comprises a base portion and a lid portion. The reservoir may be configured to improve its level of thermal contact to the heater plate using the flow of pressurised air. The reservoir may be configured to improve thermal contact between the reservoir and the heater plate by pre-compression upon engagement of the reservoir with the humidifier. The reservoir may comprise a removable intermediate portion, which may include the inlet tube and/or the outlet tube, for improved access for cleaning. The reservoir may also be configured to prevent overfilling. Overfill prevention features in the reservoir may include defined flow egress paths and/or formation of air locks.