A power supply device includes: a power supply circuit configured to supply power to a vital sensor; a capacitor electrically connected to the power supply circuit; a connector configured to supply power for charging the capacitor; and a shield case covering at least the power supply circuit and the capacitor to shield an electromagnetic wave.

A heart activity measurement device for an individual including: a processing unit; at least one measurement cable, including a first end suited for connection to the processing unit in order to form an input for an electrical potential, and a second end; a support, ready for an individual to wear, where the support supports the cable so as to keep a predefined path for the cable relative to the skin of the individual when the support is worn. The cable is laid out such that when the support is worn, any contact between an electrically conducting part of the cable and the skin of the individual is prevented. The second end of the cable does not have any electrode for contact with the skin. The support is further laid out for keeping a predefined spacing between a measurement portion of the cable and the skin of the individual.

Disclosed are devices and methods for non-invasively measuring arterial stiffness using pulse wave analysis of photoplethysmogram data. In some implementations, wearable biometric monitoring devices provided herein for measuring arterial stiffness have the ability to automatically and intelligently obtain PPG data under suitable conditions while the user is engaged in activities or exercises. In some implementations, wearable biometric monitoring devices are provided herein with the ability to remove PPG data variance caused by factors unrelated to arterial stiffness. In some implementations, wearable biometric monitoring devices have the ability to perform PWA while accounting for the user's activities, conditions, or status.

An image acquisition device includes an imager including a light receiver, a light shield, a light condenser, and a light emitter. The light shield includes a light transmitting substrate, a light shielding layer, and an opening in the light shielding layer. A light transmitting layer having a refractive index smaller than that of the substrate is between the light condenser and the light shield. When a diameter of a light receiving surface of the light reception element is d, a diameter of the opening is a, a pitch of the light reception elements is p, a refractive index of the light transmitting layer is n1, a refractive index of the substrate is n2, and a distance between the light reception element and the light shielding layer is h, Arctan((p-a/2-d/2)/h)≧Arcsin(n1/n2).

A method and apparatus are disclosed herein for a thermally conductive layer for transducer face temperature reduction in an ultrasound transducer assembly. In one embodiment, the ultrasound transducer assembly comprises: a transducer layer configured to emit ultrasound energy; one or more matching layers overlaying the transducer layer; a thermally conductive layer overlaying the one or more matching layers; and a lens overlaying the thermally conductive layer.

The present invention relates to a body electrode for recording electrophysiological signals from a body. In particular the invention relates to a body electrode (100; 200; 400) comprising a transducer element (105; 205) shielded by a layered shield structure (120; 220; 420) and a skin contact element (115; 115′; 115″; 215) providing a contactbetween the layered shield structure (120; 220; 420) and the skin (101; 201) of the body. The layered shield structure (120; 220; 420) comprises at least an electrically conducting layer (113; 213) and an electrostatic dissipative layer (112; 212; 412). The skin contact element (115; 115′; 115″; 215) comprises an electrically onducting layer (113; 213) and an ion conducting layer (114; 214) and is with regards to the electrical potential characteristics matched with a transducer element (105; 205).

The present invention relates to an electrode harness and more particularly to an electrode harness with various features, which enhance the use and performance of the electrode harness. The present invention further relates to a method of taking biopotential measurements. The electrode harness and methods of the present invention allow for use with most applications where biopotential measurements are taken. The electrode harness can be used in ECG (or EKG), EEG, EMG, and other such biopotential measurement applications. Because of the versatility of various embodiments of the present invention, preferably the electrode harness can be adjusted for different applications or for application to various sized and shaped subjects. The electrode harness is further preferably part of a system, which includes either wireless or tethered bridges between the electrode harness and a monitor, and preferably includes various forms of processors for analyzing the biopotential signal.

An MR-PET apparatus is provided. The MR-PET apparatus may include a supporting component, a PET detection device, an RF coil, and a signal shielding component. The PET detection device may be supported on the supporting component. The PET detection device may be configured to receive a plurality of photons. The RF coil may be configured to generate or receive a radio frequency (RF) signal. The signal shielding component may be placed between the PET detection device and the RF coil. The signal shielding component may be configured to shield the PET detection device from at least part of the RF signal.

The present disclosure provides a sensor device of an article of furniture. The sensor device may comprise a flexible sensor. The flexible sensor may comprise a flexible circuit board (e.g., a flexible printed circuit board) having a piezoelectric material. The sensor device can detect one or more biological signals of a user of the article of furniture comprising the sensor device. The flexible sensor may be sandwiched between two conductive layers. An electrical insulator may be disposed between the flexible sensor and at least one of the two conductive layers.

An antenna array for receiving radio-frequency signals in a frequency and power range of a magnetic resonance apparatus. The antenna array includes: a signal conductor configured to receive a radio-frequency signal of a magnetic alternating field and to transmit the radio-frequency signal to the magnetic resonance apparatus; and a carrier element mechanically connected to the signal conductor, wherein the carrier element is shaped in accordance with at least part of a set of teeth of an examination object, and wherein the carrier element is positively connectable to the set of teeth of the examination object in an application-appropriate position in accordance with an application in order to position the signal conductor on the set of teeth of the examination object.