An apparatus comprising at least two RIP measurement bands further comprises an electric power source arrangement, which excites simultaneously the at least two measurement bands with electric currents of different pseudo random variations, for making respiratory signals output by the at least two measurement bands unique. The apparatus also comprises a wireless transmitter arrangement, which transmits wirelessly respiratory information based on the respiratory signals output by the at least two measurement bands.

Methods, systems and apparatuses for determining oxygen toxicity in users is disclosed. Electrodermal activity (EDA) data from a sensor may be received. The EDA data may be indicative of one or more physiological signals derived from sweat gland activity of the user. Time-varying index values may be determined based on the EDA data. The time-varying index values may be compared to a threshold to determine if one or more of the values satisfies the threshold. Satisfying the threshold may indicate oxygen toxicity is occurring within the user. A notification may be caused to occur based on the time-varying index value satisfying the threshold. The notification may cause the user to take actions to reduce the potential for further oxygen toxicity.

The present invention relates to a parathyroid sensing system, and includes: a modulator for generating a modulation signal having a predetermined frequency; a lock-in amplifier and a light source which receive information on the modulation signal; an excitation filter for transmitting, among light emitted from the light source, only excitation light that excites parathyroid glands; an emission filter connected to a probe and selectively transmitting only fluorescence emitted from the parathyroid glands; a near-infrared sensor for sensing the autofluorescence that has passed through the emission filter, and converting the sensed autofluorescence into an electric signal; and a speaker for generating an alarm through the electric signal. Through the present invention, the locations of the parathyroid glands may be precisely identified even when lights are turned on in an operating room, and convenience may be provided by alerting a surgeon by means of an alarm when the parathyroid glands are detected. In addition, the locations of the parathyroid glands may be precisely detected, even when the probe is not directly in contact with the parathyroid glands, by using the autofluorescence characteristics of the parathyroid glands.

The invention relates to a communication method for communicating monitoring data between a monitoring device (4) and processing means (6), wherein the monitoring device (4) is configured for receiving the monitoring data. The method comprises the steps of sending a byte frame to the processing means (6), storing the byte frame, ordering the byte frame by separating the frame into respiratory rate bytes, heart rate bytes and additional bytes, and repeating the previous steps with a predetermined frequency until the processing means have received a heart rate data set, a respiratory rate data set, and an additional data set. The processing means create heart rate information from the heart rate data set and create respiratory rate information from the respiratory rate data set and display them to a user.

A device (1) for monitoring a response of a subject body (2, 21, 211) comprises an emitter (3) for emitting an input signal (5, 51, . . . ) and a receiver (4) for receiving an output signal (6, 61, . . . ). A first response (R1) of the subject body (2, 21, 211) is evaluated from the comparison between the signals. A further emitter (31, 311, . . . ) evaluates a second response (R2), wherein one of the responses is selected for a further monitoring of the response, and/or at least one further receiver (41, 411, . . . ) evaluates a third response (R3), wherein either the first response (R1) or the third response (R3) is selected for a further monitoring of the response, and/or wherein the input signal (5, 51, . . . ) is an electromagnetic field and the device (1) further comprises a signal modulator (9) which alters the input signal (5, 51, . . . ).

Systems configured to perform determining a measurement time period, generating a plurality of clock signals, receiving a plurality of analog signals during the determined measurement time period, the measurement time period establishing a maximum signal resolution associated with the clock and a sigma-delta modulator as a function of analog to digital conversion time to obtain a higher signal resolution, modulating the received plurality of analog signals to generate a frequency data stream over the measurement time period based on the received plurality of analog signals by synchronizing each of the received plurality of analog signals to a corresponding one of the generated plurality of clock signals, and filtering one or more signal artifacts from the frequency data stream over the measurement time period.

Systems and methods are provided for detecting and analyzing changes in a body. For example, a system includes an electric field generator configured to produce an electric field. The system includes an external sensor device configured to detect physical changes in the electric field, where the physical changes affect amplitude and frequency of the electric field. The system includes a quadrature demodulator configured to detect changes of the frequency of the output of the electric field generator. The system includes an amplitude reference source and an amplitude comparison switch configured to detect changes of the amplitude of the output of the electric field generator. The system includes a signal processor configured to analyze the changes of the amplitude and frequency of the output of the electric field generator.

A signal processing circuit in one aspect of the present disclosure includes a first circuit, a second circuit, an electric wire, and a third circuit. The first circuit has at least a first input terminal that receives a first signal and a first output terminal that outputs a second signal at least based on the first signal. The second circuit has at least a second input terminal that receives the second signal and a second output terminal that outputs a frequency-modulated second signal. The electric wire is electrically connected with the second output terminal. The third circuit has at least a third input terminal that receives the frequency-modulated second signal and a third output terminal that outputs a second signal demodulated to a frequency at the time of input to the first circuit. The electric wire is further electrically connected with other than the second output terminal and the third input terminal.

A stimulation system includes an energy source, an electronics unit with a controller, and an actuator that is coupled with the electronics unit and/or the energy source. The actuator emits electromagnetic waves for stimulation of genetically manipulated tissue. The electronics unit is disposed in a housing. The stimulation system is configured for at least temporary implantation in a human or animal body. The controller controls the stimulation of tissue in the body by way of the electromagnetic waves emitted by the actuator. A selector of the stimulation system selects the area of the said tissue for stimulation. The selector includes a masking device for masking certain areas of the tissue, so that an intensity of the stimulation for the masked areas is reduced or equal to zero.

An apparatus for auditory therapy frequency spectrum analysis includes: a processor and a memory connected to the processor, wherein the memory stores program instructions executable by the processor to receive a hearing threshold of a user for each of n frequency bands in which an audible frequency band is divided with 1/k octave resolution, calculate n hearing threshold representative values for each of the n frequency bands according to a preset criterion, determine a group to which the user belongs by using the calculated n hearing threshold representative values, and determine acoustic stimulus signals of frequency bands sequentially required for the user to be treated based on the determined group.