A method includes receiving analog body-surface signal from body-surface electrode, and multiple analog unipolar signals from multiple unipolar electrodes of an invasive probe. A first unipolar electrode is assigned to serve as a common electrical ground and a common timing reference for the analog unipolar signals and the analog body-surface signal. The analog unipolar signals are digitized to produce digital unipolar signals sampled relative to a digital ground. Defined are an analog bipolar signal between the first unipolar electrode and a second unipolar electrode of the probe, and digital bipolar signal formed from the first unipolar electrode and the second unipolar electrode. Ground and timing offsets between the analog bipolar signal and the digital bipolar signal are estimated, while the first unipolar electrode is connected to the digital ground. The ground offset and the timing offset are applied in measuring a third unipolar signal, sensed by a third unipolar electrode.

A leadwire for physiological patient monitoring is provided that transfers potentials received at a chest electrode to a data acquisition device. The leadwire includes an electrode end connectable to the chest electrode and a first conductive layer extending from the electrode end. The leadwire also has a device end connectable to a data acquisition device and a second conductive layer extending from the device end. The first conductive layer is galvanically isolated from the second conductive layer such that the first conductive layer and the second conductive layer form a capacitor.

Intravascular devices, systems and methods of fabricating the same are provided. In one embodiment, an intravascular system includes an intravascular guidewire that includes a flexible elongate member having a proximal portion and a distal portion, at least one electronic component secured to the distal portion of the flexible elongate member, and a locking section integral with a metal core of the flexible elongate member at the proximal portion of the flexible elongate member. The metal core has a first diameter. The locking section includes a first subsection and a second subsection. The first subsection has a second of diameter smaller than the first diameter and the second subsection transitions between the first diameter and the second diameter.

Transducer-based systems and methods may be configured to display a graphical representation of a transducer-based device, the graphical representation including graphical elements corresponding to transducers of the transducer-based device, and also including between graphical elements respectively associated with a set of the transducers and respectively associated with a region of space between the transducers of the transducer-based device. Selection of graphical elements and/or between graphical elements can cause activation of the set of transducers associated with the selected elements. Transducer activation characteristics, such as initiation time, activation duration, activation sequence, and energy delivery characteristics, can vary based on numerous factors. Visual characteristics of graphical elements and between graphical elements can change based on an activation-status of the corresponding transducers. Activation requests for a set of transducers can be denied if it is determined that a transducer in the set of transducers is unacceptable for activation.

The present disclosure provides an electronic device including a first substrate, a second substrate, a first demultiplexer unit, an integrated circuit chip, a sensor unit and a second demultiplexer unit. The second substrate is overlapped with the first substrate. The first demultiplexer unit is disposed on the first substrate. The integrated circuit chip is disposed on the first substrate and electrically connected to the first demultiplexer unit. The sensor unit is disposed on the second substrate. The second demultiplexer unit is disposed on the second substrate and electrically connected to the sensor unit.

The invention provides a magnetic inductive sensing system for sensing electromagnetic signals emitted from a body in response to electromagnetic excitation signals applied to the body. The electromagnetic signals are generated and sensed by the same loop resonator which comprises a single-turn loop antenna and a tuning capacitor. The loop antenna of the resonator and a signal generation means for exciting the resonator to generate excitation signals are together configured so as to optimize the value of a ratio between the radial frequency of the generated electromagnetic excitation signals and a reference frequency of the antenna, where the reference frequency is the frequency for which one wavelength of the generated excitation signals (waves) matches the circumferential length of the antenna. This ratio, which corresponds to a normalized radial frequency of the generated excitation signals, is maintained between a value of 0.025 and 0.50.

A wearable device (100) includes a body (1) and a detection electrode (21). The body (1) includes an electrocardiosignal collection circuit (11), and an inner electrode (12) and an outer electrode (13) that are electrically connected to the electrocardiosignal collection circuit (11). The inner electrode (12) is configured to collect an electric potential signal of a first wearing position (200), and the outer electrode (13) is configured to collect an electric potential signal of a non-wearing position (300). The detection electrode (21) can move relative to the body (1), and the detection electrode (21) is configured to electrically connect to the electrocardiosignal collection circuit (11) and collect an electric potential signal of a second wearing position (400). The non-wearing position (300) and the second wearing position (400) are different from the first wearing position (200). The wearable device (100) can measure electrocardiosignal data in time.

Described herein are catheters for use in analyzing neural activity of nerves that surround a biological lumen. Such a catheter comprises a handle including a first, second, and third actuators, and a shaft extending from the handle and including proximal and distal electrodes that are selectively deployable. The first actuator is configured to selectively deploy the proximal electrode in response to the first actuator being manually maneuvered. The second actuator is configured to selectively deploy the distal electrode in response to the second actuator being manually maneuvered. The third actuator is configured to selectively adjust a longitudinal distance between the proximal and distal electrodes in response to the third actuator being manually maneuvered.

A vital signs monitoring system, the system including: (a) an ear device including: a curved body adapted to a shape of an ear, an upper end, a lower end, two opposite facing sides, a first side adapted to be proximal a skull and a second side adapted to be proximal an earlobe, the ear device including: (i) a temperature sensor adapted to sense a body temperature from a depression between a lower, jawbone and skull; and (b) a control system, including a processor and a memory, configured and operable to control operation of the ear device, to collect signals received from at least one sensor including the temperature sensor, to process the signals to provide medically significant results.

A system and method for performing an electrocardiogram is described herein. The system may include one or more of an electrode strip, a data recorder, a connector, one or more computing platforms, and/or other components. The electrode strip may include multiple electrodes configured to provide signals conveying information associated with electrocardiograms. The multiple electrodes may be integrated into the electrode strip. The data recorder may be configured to receive and record information associated with electrocardiograms. Information associated with electrocardiograms may be communicated from the electrode strip to the data recorder via a connector. The connector may include a cableless connector. In some implementations, the information associated with electrocardiograms may be transmitted to one or more computing platforms.