An electronic fitness device comprises a first optical transmitter, an optical receiver, and a processing element. The first optical transmitter is configured to transmit a first optical signal and a second optical signal. The optical receiver is configured to receive the first and optical signals and to generate first and second photoplethysmogram (PPG) signals resulting from the received optical signals. The processing element is configured to control the first optical transmitter to transmit the first optical signal the second optical signal, receive the first and second PPG signals from the optical receiver and compare them, identify a common cardiac component present in the first and the second PPG signals based on the comparison, determine a signal filter parameter based on the common cardiac component, and generate first and second cardiac components from the first and second PPG signals, respectively, based on the signal filter parameter.

The present invention relates to a sensor applicator assembly for a continuous glucose monitoring system and provides a sensor applicator assembly for a continuous glucose monitoring system, which is manufactured with a sensor module assembled inside an applicator, thereby minimizing additional work by a user for attaching the sensor module to the body and allowing the sensor module to be attached to the body simply by operating the applicator, and thus can be used more conveniently. A battery is built in the sensor module and a separate transmitter is connected to the sensor module so as to receive power supply from the sensor module and be continuously used semi-permanently, thereby making the assembly economical. The sensor module and the applicator are used as disposables, thereby allowing accurate and safe use and convenient maintenance.

A system and method is presented for cuff-less blood pressure measurement in a mobile device. A key aspect of this disclosure is the discovery of a new location for blood pressure measurement at the fingertip of a subject and that reflectance-mode photoplethysmography can be used to help make this measurement. Through experiments in human subjects, it was discovered that it is indeed possible to measure systemic blood pressure by having a subject press the fingertip against a reflectance-mode photo-plethysmography-force sensor unit under visual guidance and then compute blood pressure from the resulting variable-amplitude blood volume oscillations and applied pressure via an oscillometric algorithm.

A wearable device is provided. The wearable device according to one embodiment of the present invention includes a body member including a heartbeat sensor, a first band member and a second band member respectively coupled to both ends of the body member, and a flexible battery having a portion accommodated inside the body member and both remaining ends accommodated inside the first band member and the second band member.

An integrated system for injection including an injection device in electronic connection with a communication device is provided. The external communication device may be a handheld electronic device such as a Smartphone or a dedicated reader such as a reader capable of reading information contained on an RFID tag. The injection device includes a needle and a drug delivery portion enclosed within an external housing. Optionally, a plurality of sensors is affixed to the surface of the needle to collect data about the injection and physical characteristics of the patient. The data may be recorded on a data capture module. The electronic chip may be a readable and writable electronic chip such as a non-volatile memory chip. Alternatively, the electronic chip is a passive RFID tag. The injection device may further include a data transmitter for sending information obtained from the data capture module to the external communications device.

Embodiments of the invention include a physiological sensor system. According to an embodiment the sensor system may include a package substrate, a plurality of sensors formed on the substrate, a second electrical component, and an encryption bank formed along a data transmission path between the plurality of sensors and the second electrical component. In an embodiment the encryption bank may include a plurality of portions that each have one or more switches integrated into the package substrate. In an embodiment each sensor transmits data to the second electrical component along different portions of the encryption bank. In some embodiments, the switches may be piezoelectrically actuated. In other embodiments the switches may be actuated by thermal expansion. Additional embodiments may include tri- or bi-stable mechanical switches.

Prosthetic and/or orthotic devices (PODS), control systems for PODS and methods for controlling PODS are provided. As part of the control system, an inference layer collects data regarding a vertical and horizontal displacement of the POD, as well as an angle of the POD with respect to gravity during a gait cycle of a user of the POD. A processor analyzes the data collected to determine a locomotion activity of the user and selects one or more control parameters based on the locomotion activity. The inference layer may be situated between a reactive layer control module and a learning layer control module of the control system architecture.

A sample collector is provided for receiving a breath gas sample and a gas sample testing device is provided with such a sample collector. The sample collector is configured for receiving from a person a breath gas sample to be investigated. The sample collector includes an inflow part (2) with an inflow opening (IO) and an outflow part (13) with an outflow opening (OO). The sample collector provides a flow duct guiding a gas sample from the inflow opening (IO) to the outflow opening (OO). The inflow part (2) is rigidly connected with the outflow part (13). The inflow part (2) and the outflow part (13) together form a housing which gas-tightly surrounds the flow duct. The inflow part (2) tapers in a direction towards the outflow opening (OO). The outflow part (13) tapers in a direction towards the inflow opening (IO).

A mobile device for measuring at least one electrical biosignal. The device comprises a first input and a second input, a measuring circuit part for providing an output signal indicating the electrical biosignal to be measured, the measuring circuit part comprising a first input and a second input, and a charging circuit part for charging a rechargeable battery inserted in the device, the charging circuit part comprising a first input and a second input. The first input of the measuring circuit part and the first input of the charging circuit part are connected to the first input of the mobile device and the second input of the measuring circuit part and the second input of the charging circuit part are connected to the second input of the mobile device.

System for non-invasive measuring of an intracranial reserve space (ICRS) parameter of a mammalian subject, comprising a multi-frequency ultrasound probe configured, beginning at a start time, to emit and receive ultrasound waves into and from the subject's head and to produce a signal of brain tissue pulsation; an instrument configured to non-invasively partially occlude an internal jugular vein (IJV) starting at the start time and including a second ultrasound probe producing a second signal; and a computer system configured to receive the signal, the second signal and the start time, the computer system also configured, using one or more processors, to derive from the signal an intracranial brain tissue pulsation waveform and from the second signal images of the IJV, and to determine a length of time from the start time to a subsequent time at which the waveform is sufficiently compressed so as to exhibit a predefined decline in variability.