In some embodiments, a system includes a patch assembly and a frame. The patch assembly includes an adhesive portion. The patch assembly is configured to be coupled to a surface of a user via the adhesive portion. The patch assembly has a first patch configuration and a second patch configuration. The frame defines an opening. The patch assembly is configured to be disposed within the opening. The frame has a first frame configuration in which the frame is coupled to the patch assembly via a group of connectors such that the frame prevents the patch assembly from transitioning between the first patch configuration and the second patch configuration. The frame has a second frame configuration in which the group of connectors are broken and the frame is separated from the patch assembly.

In some embodiments, a system includes a patch assembly and a frame. The patch assembly includes an adhesive portion. The patch assembly is configured to be coupled to a surface of a user via the adhesive portion. The patch assembly has a first patch configuration and a second patch configuration. The frame defines an opening. The patch assembly is configured to be disposed within the opening. The frame has a first frame configuration in which the frame is coupled to the patch assembly via a group of connectors such that the frame prevents the patch assembly from transitioning between the first patch configuration and the second patch configuration. The frame has a second frame configuration in which the group of connectors are broken and the frame is separated from the patch assembly.

A device comprises a first circuit member, a second circuit member and a third circuit member. The first circuit member comprises a first body for performing the function of the first circuit member and a first flexible board formed with a first integrated-electrode portion including first electrodes. The second circuit member comprises a second body for performing the function of the second circuit member and a second flexible board formed with a second integrated-electrode portion including second electrodes. The third circuit member comprises a third body for performing the function of the third circuit member and a third flexible board formed with a third integrated-electrode portion including third electrodes. The first integrated-electrode portion, the second integrated-electrode portion and the third integrated-electrode portion lie over each other in an upper-lower direction. The first body, second body and the third body are apart from each other when seen along the upper-lower direction.

An apparatus for sensing electrical currents in a subject has a geodesic net structure of electrode elements connect by flexible legs. The electrode elements each have an inner electrode facing and sensing electrical currents in the subject and an outer layer electrode facing away and sensing external electrical noise. The legs have flexible conductive material that electrically connects the outer electrodes so that they are all connected and are electrically the same or similar to the subject's body part. The outputs of the electrodes are converted to multiplexed digital signals and transmitted to signal processing circuitry that identifies the noise present in the signals from the outer electrodes and removes the noise from the signals from the inner electrodes so as to output clean EEG data for each inner electrode. Additional electrodes that detect extraneous neuro-muscular currents are also used to determine the noise in the inner electrode output signals.

An apparatus for sensing electrical currents in a subject has a geodesic net structure of electrode elements connect by flexible legs. The electrode elements each have an inner electrode facing and sensing electrical currents in the subject and an outer layer electrode facing away and sensing external electrical noise. The legs have flexible conductive material that electrically connects the outer electrodes so that they are all connected and are electrically the same or similar to the subject's body part. The outputs of the electrodes are converted to multiplexed digital signals and transmitted to signal processing circuitry that identifies the noise present in the signals from the outer electrodes and removes the noise from the signals from the inner electrodes so as to output clean EEG data for each inner electrode. Additional electrodes that detect extraneous neuro-muscular currents are also used to determine the noise in the inner electrode output signals.

An automated external defibrillator (210) for use during CPR comprising: a first electrode pad (370a) configured to obtain an electrocardiogram (ECG) signal from an individual; a second electrode pad (370b) configured to obtain ECG signal from the individual, wherein the first and/or the second electrode pad comprises an electrode pad visual display (372) configured to be visible while providing CPR to the individual; a controller (310) configured to: (i) process an electrical and/or an accelerometer signal to determine a depth of one or more chest compressions during CPR; (ii) compare the determined depth of the chest compressions to a threshold depth; (ii) determine, based on the comparison, that the determined depth exceeds or falls below the threshold depth; and (iii) direct the electrode pad visual display to provide a depth indication to the user that the determined depth of the chest compressions exceeds or falls below the threshold depth.

An electrode sensor involves a solid conductive polymeric substrate shaped as an electrode sensor or portion of an electrode sensor having a layer of silver-coated particles distributed on and embedded into a surface of the substrate. The electrode sensor is particularly useful for ECG electrodes and utilizes less silver without unduly sacrificing performance. A process for producing the electrode sensor involves distributing a layer of silver-coated particles on a surface of a solid conductive polymeric substrate shaped as an electrode sensor or portion of an electrode sensor and thermally embedding the silver-coated particles into the surface. The process is simpler and less costly than existing processes for producing electrode sensors.

An electrode sensor involves a solid conductive polymeric substrate shaped as an electrode sensor or portion of an electrode sensor having a layer of silver-coated particles distributed on and embedded into a surface of the substrate. The electrode sensor is particularly useful for ECG electrodes and utilizes less silver without unduly sacrificing performance. A process for producing the electrode sensor involves distributing a layer of silver-coated particles on a surface of a solid conductive polymeric substrate shaped as an electrode sensor or portion of an electrode sensor and thermally embedding the silver-coated particles into the surface. The process is simpler and less costly than existing processes for producing electrode sensors.

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and the QRS interval signals indicating ventricular activity in the ECG waveforms. In particular, the ECG electrodes on the electrode patch are tailored to be positioned axially along the midline of the sternum for capturing action potential propagation in an orientation that corresponds to the aVF lead used in a conventional 12-lead ECG that is used to sense positive or upright P-waves.

Physiological monitoring can be provided through a lightweight wearable monitor that includes two components, a flexible extended wear electrode patch and a reusable monitor recorder that removably snaps into a receptacle on the electrode patch. The wearable monitor sits centrally on the patient's chest along the sternum oriented top-to-bottom. The placement of the wearable monitor in a location at the sternal midline, with its unique narrow “hourglass”-like shape, significantly improves the ability of the wearable monitor to cutaneously sense cardiac electrical potential signals, particularly the P-wave and the QRS interval signals indicating ventricular activity in the ECG waveforms. In particular, the ECG electrodes on the electrode patch are tailored to be positioned axially along the midline of the sternum for capturing action potential propagation in an orientation that corresponds to the aVF lead used in a conventional 12-lead ECG that is used to sense positive or upright P-waves.