A sensor system includes a sensor stack, a differential amplifier, an analog-to-digital converter, and a processor. The sensor stack includes a piezoelectric material having a first side opposing a second side, a first electrode connected to the first side, and a second electrode connected to the second side. The differential amplifier is coupled to the first and second electrodes and is configured to generate a differential output indicative of vibrations sensed by the piezoelectric material. The analog-to-differential converter is configured to digitize the differential output. The processor is configured to identify a type of biological vibration included in the digitized differential output.

Example devices are disclosed herein that include a first elongated band coupled to a first housing to be located on a first side of a head of a subject and a second housing to be located near a second side of the head of the subject, the first elongated band comprising a first set of electrodes. The example device also includes a second elongated band coupled to the first housing and to the second housing, the second elongated band comprising a second set of electrodes. In addition, the device includes a third elongated band coupled to the first housing and to the second housing, the third elongated band comprising a third set of electrodes.

The present invention relates to an ECG electrode connector (1) and an ECG cable. To eliminate a trunk cable of a conventional ECG cable arrangement, the ECG electrode connector (1) is configured for mechanically and electrically connecting an ECG electrode with a lead wire. It comprises a connection arrangement (10) for mechanically connecting the ECG electrode connector (1) with an ECG electrode (100), a lead wire terminal (14) for connection with a signal line (301) of a lead wire (300), a shield terminal (15) for connection with a shield (302) of the lead wire (300), an electrode contact (17) for contacting an electrical contact (101) of the ECG electrode (100), a voltage clamping element (13) coupled between the lead wire terminal (14) and the shield terminal (15), and a resistor (16) coupled between the lead wire terminal (14) and the electrode contact (17).

A physiological signal monitoring device includes a base and a transmitter. The base is provided with a biosensor. The transmitter is removably coupled to the base, and includes a casing and an electrostatic-discharge protective unit. The casing has a socket for the biosensor to be removably inserted thereinto. The electrostatic-discharge protective unit is disposed to at least surround the periphery of the socket to dispel static electricity when electrostatic discharge occurs.

Disclosed is an integrated physiological signal detection sensor, comprising a movable housing member, a fixed housing member, and a sensing unit circuit board. The movable housing member and the fixed housing member are connected to form an internal space therebetween. The sensing unit circuit board is fixedly installed on the fixed housing member within the space. A piezoelectric film is attached to the sensing unit circuit board. A hollowed-out region surrounds the periphery of the piezoelectric film. A protrusion is provided on the movable housing member at a position corresponding to the piezoelectric film. The sensor of the present invention has advantages of simplified sensor installation, improved signal integrity, and simplified wire routing of an electromagnetic shield layer, thereby eliminating errors caused by sensor installation and improving the accuracy of data detection.

A multi-modal bio-sensing apparatus is disclosed including a first sensor module comprising a photoplethysmogram (PPG) sensor configured to produce a first output representative of a blood volume of a human user, wherein the PPG sensor is configured to remove from the first output an error signal due to movement of a user; a second sensor module comprising an electroencephalogram (EEG) sensor configured to produce a third output representative of brain neural activity of the user; a third sensor module comprising an eye-gaze camera configured to capture a gaze direction of one or more eyes of the user; and a wireless communications transceiver coupled to receive sensor data from the first sensor module, the second sensor module, or the third sensor module and configured to wirelessly transmit the received sensor data from the first sensor module, the second sensor module, or the third sensor module out of the multi-modal bio-sensing apparatus.

A biopsy forceps tool (preferably for endoscopic use) in which microwave energy is used to coagulate bleeding after a biological tissue sample is collected between a pair of jaws. The pair of jaws define an enclosure that is isolated from the microwave energy itself and insulated from any thermal changes that occur due to application of the microwave energy. The tool comprises a pair of jaws connected to a coaxial cable, each of the pair of jaws comprising an electrically conductive shell, the jaw assembly being movable between a closed position in which the electrically conductive shells enclose an internal volume for holding a tissue sample and an open position in which the internal volume is exposed in order to receive the tissue sample. The electrically conductive shells form a Faraday cage around the internal volume when in the closed position.

A deep intracranial electrode which comprises a flexible wire, an electrode contact, a connector and a shield sleeve, one end of the flexible wire is connected to the electrode contact, the other end connected to the connector; the shield sleeve sheathes around the flexible wire, a sum of a length of a part of the flexible wire arranged outside the shield sleeve and a length of the shield sleeve being adjustable. When the shield sleeve sheaths around the flexible wire, the length of the flexible wire inside the radio-frequency magnetic field of the magnetic resonance equipment may equal to a sum of the length of the shield sleeve and a length of the flexible wire outside the shield sleeve.

In accordance with at least one aspect of this disclosure, an encephalographic electrode assembly can include a wicking element that has a wick body, one or more long legs extending from the wick body and inserted into the one or more hollow contact probes, and one or more short legs, which are shorter than the long legs, extending from the wick body and inserted into the one or more short reservoir sleeves. The short legs are configured to prevent slide-out of the wicking element from the reservoir body.

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.