Abstract: An insertable cardiac monitor (ICM) with induction-based recharging capabilities and a transmitting coil for recharging the same are disclosed. The length of the monitoring performed by the ICM is extended and the functionality of the ICM enhanced, by including an internal energy harvesting module that allows for charging the ICM at a high speed without burning the patient or overheating components of the ICM. Internally, the energy harvesting module includes at least two overlapping receiving coils that are spaced to be orthogonal to each other and that have a tilt angle of substantially 45°. Such overlapping wire combination allows to minimize mutual inductance of the solenoid coils and increase the rate at which energy can be provided to the energy harvesting module. Further, the rate at which the energy is transmitted from the outside can be increased by defining in a transmitting coil a substantially triangular gap.

Abstract: A method for continuous data transfer is provided. Data blocks are generated from a continuous data stream captured via a physiological monitoring device by segmenting data from the continuous data stream into the data blocks. A time at which the data associated with each data block occurs is determined and a sample number is associated with each data block. The data blocks are transmitted from the physiological monitoring device to a server. The data blocks are ordered on the server based on the time and the sample number associated with each data block.

Abstract: An extended wear electrocardiography patch is provided. A flexible backing is formed of an elongated strip of stretchable material. An electrocardiographic electrode is affixed to and conductively exposed on a contact surface of each end of the elongated strip. A flexible circuit is affixed on each end of the elongated strip. A non-conductive receptacle is adhered on one of the ends of the elongated strip on a surface opposite the contact surface and removably receives an electrocardiography monitor operable to obtain electrocardiographic signals. A physiological sensor is provided with the electrocardiography monitor or on the flexible backing. Memory is provided on the flexible backing and is programmed with a sampling rate to instruct the physiological sensor to obtain readings of physiological data. A battery is positioned on one end of the flexible backing to provide power to one or more of the physiological sensors and the electrocardiography monitor.

Abstract: A system and method for physiological data classification for use in facilitating diagnosis is provided. A physiological monitor includes a feedback button and physiological data obtained via the physiological monitor is stored in a database. The physiological data is divided into segments and one or more data segments are classified as noise. A determination is made that at least one of the data segments classified as noise includes a marker indicating a press of the feedback button on the physiological monitor. A set of the physiological data including and surrounding the physiological data occurring during the press of the feedback button is identified within the data segment classified as noise. The identified set of physiological data is provided with the data segments classified as valid for analysis.

Abstract: A method for continuous data transfer is provided. Data blocks are generated from a continuous data stream captured via a physiological monitoring device by segmenting data from the continuous data stream into the data blocks. A time at which the data associated with each data block occurs is determined and a sample number is associated with each data block. The data blocks are transmitted from the physiological monitoring device to a server. The data blocks are ordered on the server based on the time and the sample number associated with each data block.

Abstract: A system and method for physiological data classification for use in facilitating diagnosis is provided. A physiological monitor includes a feedback button and physiological data obtained via the physiological monitor is stored in a database. The physiological data is divided into segments and one or more data segments are classified as noise. A determination is made that at least one of the data segments classified as noise includes a marker indicating a press of the feedback button on the physiological monitor. A set of the physiological data including and surrounding the physiological data occurring during the press of the feedback button is identified within the data segment classified as noise. The identified set of physiological data is provided with the data segments classified as valid for analysis.

Abstract: An implantable medical device is disclosed. A housing includes a hollow body forming a first electrode on an outer surface with end caps affixed to opposite ends, one end cap forming a second electrode. A microcontroller circuit is provided and includes a microcontroller operable under program instructions stored within a non-volatile memory device. An analog front end is interfaced to the electrodes to sense electrocardiographic signals. A transceiver circuit is operable to wirelessly communicate with an external data device. The program instructions define instructions to continuously sample the electrocardiographic signals into the non-volatile memory device and to offload the non-volatile memory device to the external data device. A receiving coil and a charging circuit are operable to charge an onboard power source for the microcontroller circuit.

Abstract: An electrocardiography monitor is provided. A sealed housing includes one end wider than an opposite end of the sealed housing. Electronic circuitry is provided within the sealed housing. The electronic circuitry includes an electrographic front end circuit to sense electrocardiographic signals and a micro-controller interfaced to the electrocardiographic front end circuit to sample the electrocardiographic signals. A buzzer within the housing outputs feedback to a wearer of the sealed housing.

Abstract: An apparatus is provided. A strip has first and second end sections, and a first surface and second surface. Two electrocardiographic electrodes are provided on the strip with one of the electrocardiographic electrodes provided on the first surface of the first end section of the strip and another of the electrocardiographic electrodes positioned on the first surface on the second end section of the strip. A flexible circuit is mounted to the second surface of the strip and includes a circuit trace electrically coupled to each of the electrocardiographic electrodes. A wireless transceiver is affixed on one of the first or second end sections, and a battery is positioned on one of the first or second end sections. A processor is positioned on one of the first or second end sections and is housed separate from the battery.

Abstract: A circuit with low voltage energy storage for use in generating a defibrillation waveform is described. A charging circuit includes a pulse capacitor that stores defibrillation energy, a high voltage generator circuit that includes a transformer and a rectification circuit through which the pulse capacitor is charged with the defibrillation energy, and a discharge and polarity control circuit electrically connected to the pulse capacitor and switchable to receive the defibrillation energy, which is output as a defibrillation waveform. A low voltage energy supplementing circuit is electrically connected to the pulse capacitor in line with the high voltage generator circuit and stores supplemental defibrillation energy. A microcontroller is adapted to enable the low voltage energy supplementing circuit to modulate the delivery of the stored supplemental energy to the pulse capacitor to augment the defibrillation energy derived from\the initial defibrillation waveform.

Abstract: A method for data exchange and charging is provided. An implantable medical device is monitored and charging of the implantable medical device is initiated by providing charge parameters to a bedside monitor. Communication is initiated between a puck associated with the bedside monitor and implantable medical device. The implantable medical device is charged using the charge parameters. Simultaneously with the charging, transfer of data between the implantable medical device and the bedside monitor is initiated.

Abstract: An electrocardiography patch is provided. A backing includes two rounded ends connected by a middle section that is narrower than the two rounded ends. An electrode is positioned on a contact surface of the backing on each rounded end. A circuit trace is electrically coupled to each of the electrodes. A battery is positioned on an outer surface of the backing, opposite the contact surface, on one of the rounded ends.

Abstract: A self-authenticating electrocardiography and physiological sensor monitor is provided. A strip includes two rounded ends with a mid-section between the rounded ends. An electrocardiographic electrode is provided on each of the rounded ends. A flexible circuit is mounted to a surface of the strip and includes a circuit trace electrically coupled to each of the electrocardiographic electrodes. A flash memory is positioned on one of the rounded ends to store ECG data collected via the electrocardiographic electrodes and a battery is positioned on one of the rounded ends. A processor is positioned on one of the rounded ends and configured to execute an authentication protocol that checks voltage of the battery and a state of the flash memory, and determines an expiration of the strip.

Abstract: An electrocardiography patch is provided. A backing has an elongated strip with a midsection connecting two rounded ends. The midsection tapers in from each of the rounded ends and is narrower than each of the two rounded ends. Each electrode, of a pair of electrodes, is positioned on one of the rounded ends of the backing, on a contact surface, to capture electrocardiographic signals. A flex circuit is coupled to each of the electrodes. A non-conductive receptacle is affixed on an outer surface of the backing, opposite the contact surface. Electrical contacts are provided on a surface of the non-conductive receptacle opposite the backing. A battery is provided on the outer surface of the backing and a processor is powered by the battery to write the electrocardiographic signals into memory.

Abstract: 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.

Abstract: Long-term electrocardiographic and physiological monitoring over a period lasting up to several years in duration can be provided through a continuously-recording subcutaneous insertable cardiac monitor (ICM). The sensing circuitry and the physical layout of the electrodes are specifically optimized to capture electrical signals from the propagation of low amplitude, relatively low frequency content cardiac action potentials, particularly the P-waves that are generated during atrial activation. In general, the ICM is intended to be implanted centrally and positioned axially and slightly to either the left or right of the sternal midline in the parasternal region of the chest. Additionally, the ICM includes an ECG sensing circuit that measures raw cutaneous electrical signals and performs signal processing prior to outputting the processed signals for sampling and storage.

Abstract: A monitoring apparatus is provided. A strip includes a first end section, a second end section opposite the first end section, and a midsection between the first end section and the second end section, and further includes a first surface and a second surface. An adhesive covers a portion of the first surface of the strip. Only two electrocardiographic electrodes are included. A flexible circuit is mounted to the second surface of the strip. An accelerometer, a respiratory sensor, and a wireless transceiver are provided on the second surface of the strip. A processor is positioned over a portion of the flexible circuit and coupled to the electrodes and the wireless transceiver.

Abstract: An insertable cardiac monitor (ICM) with induction-based recharging capabilities and a transmitting coil for recharging the same are disclosed. The length of the monitoring performed by the ICM is extended and the functionality of the ICM enhanced, by including an internal energy harvesting module that allows for charging the ICM at a high speed without burning the patient or overheating components of the ICM. Internally, the energy harvesting module includes at least two overlapping receiving coils that are spaced to be orthogonal to each other and that have a tilt angle of substantially 45°. Such overlapping wire combination allows to minimize mutual inductance of the solenoid coils and increase the rate at which energy can be provided to the energy harvesting module. Further, the rate at which the energy is transmitted from the outside can be increased by defining in a transmitting coil a substantially triangular gap.

Abstract: An apparatus is provided. A strip has first and second end sections, and a first surface and second surface. Two electrocardiographic electrodes are provided on the strip with one of the electrocardiographic electrodes provided on the first surface of the first end section of the strip and another of the electrocardiographic electrodes positioned on the first surface on the second end section of the strip. A flexible circuit is mounted to the second surface of the strip and includes a circuit trace electrically coupled to each of the electrocardiographic electrodes. A wireless transceiver is affixed on one of the first or second end sections, and a battery is positioned on one of the first or second end sections. A processor is positioned on one of the first or second end sections and is housed separate from the battery.

Abstract: An electrocardiography monitor is provided. A sealed housing includes one end wider than an opposite end of the sealed housing. Electronic circuitry is provided within the sealed housing. The electronic circuitry includes an electrographic front end circuit to sense electrocardiographic signals and a micro-controller interfaced to the electrocardiographic front end circuit to sample the electrocardiographic signals. A buzzer within the housing outputs feedback to a wearer of the sealed housing.