Disclosed is an apparatus for battery-free measuring vital signs of a user from a single position near the user influenced by an alternating electric field provided by an electronic device. The apparatus includes a first electronic circuitry, a second electronic circuitry stacked to the first electronic circuitry, an instrumentation amplifier for amplifying the signals, an analog/digital converting logic circuit for generating digitized information, and a communication unit for communicating the digitized information. The first electronic circuitry includes a first electrode for receiving vital signals (acoustic, mechanical, electrical signals) from the user's body, a first shield unit for shielding the first electrode from electrical influences and influenced by the alternating electric field provided by the electronic device, a first rectifier for harvesting and rectifying the received alternating electric field from the first shield unit, further the first rectifier provides DC energy, a first buffer stores the DC energy and provides differential voltages, a first programmable operational amplifier amplifies the amplitude of the received vital signs powered by the received differential voltage from the first buffer.

Disclosed is an apparatus for battery-free measuring vital signs of a user from a single position near the user influenced by an alternating electric field provided by an electronic device. The apparatus includes a first electronic circuitry, a second electronic circuitry stacked to the first electronic circuitry, an instrumentation amplifier for amplifying the signals, an analog/digital converting logic circuit for generating digitized information, and a communication unit for communicating the digitized information. The first electronic circuitry includes a first electrode for receiving vital signals (acoustic, mechanical, electrical signals) from the user's body, a first shield unit for shielding the first electrode from electrical influences and influenced by the alternating electric field provided by the electronic device, a first rectifier for harvesting and rectifying the received alternating electric field from the first shield unit, further the first rectifier provides DC energy, a first buffer stores the DC energy and provides differential voltages, a first programmable operational amplifier amplifies the amplitude of the received vital signs powered by the received differential voltage from the first buffer.

An extracorporeal aspirant prediction and detection system and methods for same are disclosed in which an external sensor assembly, such as a collar-like structure, is placed or worn on the neck and comprises a plurality of integral sensors and/or sensor types for detection of a foreign substance, such as aspirant. Electronic signal conditioning and processing systems, a power source, and communication elements are provided for alerting the user or clinician of any aspiration events.

An extracorporeal aspirant prediction and detection system and methods for same are disclosed in which an external sensor assembly, such as a collar-like structure, is placed or worn on the neck and comprises a plurality of integral sensors and/or sensor types for detection of a foreign substance, such as aspirant. Electronic signal conditioning and processing systems, a power source, and communication elements are provided for alerting the user or clinician of any aspiration events.

An electrode device provides non-invasive non-contact measurements of biological signals such as from the heart, muscles, or brain (ECG, EMG, EEG) from a subject. The exemplary electrode device is a non-contact sensor that does not make an ohmic/galvanic connection to the skin but rather acquires the signal by forming a capacitor with the skin at the sensing site. The exemplary electrode device is configured with a feedback path that is defined based on, or as a function, of proximity. Thus, in response to motion, unwanted currents are cancelled, and the gain does not change.

An electrode device provides non-invasive non-contact measurements of biological signals such as from the heart, muscles, or brain (ECG, EMG, EEG) from a subject. The exemplary electrode device is a non-contact sensor that does not make an ohmic/galvanic connection to the skin but rather acquires the signal by forming a capacitor with the skin at the sensing site. The exemplary electrode device is configured with a feedback path that is defined based on, or as a function, of proximity. Thus, in response to motion, unwanted currents are cancelled, and the gain does not change.

A heart treatment system is disclosed capable of diagnosing one or more critical regions of interest for a biological rhythm disorder by sensing signals from biological tissue. If a critical region is not present at the current location of sensed signals, the system is capable of indicating a guidance direction in which to navigate to reach one or more critical regions. Ablation energy is delivered to treat said region of interest. Signals are again sensed and analyzed to assess the impact of treatment. This process is repeated until all critical regions of interest are treated. In some embodiments, all functionality is provided by a single sensing and treating catheter with display device and analytical software.

A heart treatment system is disclosed capable of diagnosing one or more critical regions of interest for a biological rhythm disorder by sensing signals from biological tissue. If a critical region is not present at the current location of sensed signals, the system is capable of indicating a guidance direction in which to navigate to reach one or more critical regions. Ablation energy is delivered to treat said region of interest. Signals are again sensed and analyzed to assess the impact of treatment. This process is repeated until all critical regions of interest are treated. In some embodiments, all functionality is provided by a single sensing and treating catheter with display device and analytical software.

A sensor device comprises at least two sensors at the end of a shaft (such as a guidewire or catheter). One sensor uses signals in a first frequency range and a first voltage range and the other sensor uses signals in a second frequency range different to the first frequency range and a second voltage range different to the first voltage range. The first sensor is shorted based on frequency analysis, thereby to prevent the first sensor being exposed to signals associated with the second sensor. This enables the two sensors to be driven by the same shared pair of wires along the shaft, with automatic selection of the suitable sensor.

A sensor device comprises at least two sensors at the end of a shaft (such as a guidewire or catheter). One sensor uses signals in a first frequency range and a first voltage range and the other sensor uses signals in a second frequency range different to the first frequency range and a second voltage range different to the first voltage range. The first sensor is shorted based on frequency analysis, thereby to prevent the first sensor being exposed to signals associated with the second sensor. This enables the two sensors to be driven by the same shared pair of wires along the shaft, with automatic selection of the suitable sensor.