Secure file transfer system and method

    公开(公告)号:US11582022B1

    公开(公告)日:2023-02-14

    申请号:US17088287

    申请日:2020-11-03

    Abstract: A scheme for securely transferring a patient data file to an intended recipient regardless of a transfer mode selected by a sender. Encryption system executing at the sender device is operative to encrypt each plaintext data line of a file, one by one, using a symmetric key and a starting IV that is incremented per each line, resulting in corresponding ciphertext lines added to an encrypted file. A hash is generated based on the encrypted file. An encrypted header containing the symmetric key, starting IV and the hash is generated using a public key of the recipient, which is appended to the encrypted file. The encrypted header and associated encrypted file are transmitted to the recipient in any manner. Upon receipt, the recipient decrypts the encrypted header using a private key to obtain the symmetric key, starting IV and the hash, which are used by the recipient to validate and decrypt the encrypted file on a line-by-line basis.

    MRI-COMPATIBLE IMPLANTABLE MEDICAL DEVICES

    公开(公告)号:US20230028065A1

    公开(公告)日:2023-01-26

    申请号:US17382294

    申请日:2021-07-21

    Inventor: Matthew Lopez

    Abstract: One or more antennas are electrically coupled to one or more switches of an implantable medical device (IMD) in which the one or more switches are additionally electrically coupled to one or more lead wires of an IMD lead. The one or more switches also are electrically coupled to one or more electrodes or electrical circuitry of the IMD's implantable pulse generator (IPG). In response to exposure of the IMD to an energetic electromagnetic field, a voltage signal is induced in the one or more antennas and provided, possibly via one more filters, as a control signal to the one or more switches. Receipt of the control signal by the one or more switches automatically configures the one or more switches into a non-conductive state, thereby electrically isolating the one or more lead wires from the one or more electrodes or the IPG electrical circuitry.

    STIMULATION LEAD AND METHOD INCLUDING A MULTI-DIMENSIONAL ELECTRODE ARRAY

    公开(公告)号:US20220280783A1

    公开(公告)日:2022-09-08

    申请号:US17752779

    申请日:2022-05-24

    Abstract: Stimulation lead includes an elongated lead body having distal and proximal ends and wire conductors extending therebetween. The stimulation lead also includes a lead paddle having a multi-dimensional array of electrodes positioned along a contact side of the lead paddle. The electrodes are electrically coupled to the wire conductors. The lead paddle includes a paddle body and a conductor organizer disposed within the paddle body. The conductor organizer has multiple channels extending along the lead paddle. The channels receive the wire conductors and retain the wire conductors in a designated arrangement with respect to the lead paddle. The conductor organizer has openings to the channels. The wire conductors extend through the openings and are terminated to the respective electrodes.

    METHOD AND SYSTEM WITH CURRENT REGULATOR BIASED BY FLOATING POWER SUPPLY

    公开(公告)号:US20220233850A1

    公开(公告)日:2022-07-28

    申请号:US17720239

    申请日:2022-04-13

    Abstract: A system and method are provided that include a power supply having positive and negative terminals. The negative terminal defines a reference ground. First and second electrodes are positioned within a patient and configured to be located proximate to tissue of interest that is associated with a target region. A control circuit is configured to control delivery of current for a therapy between the first and second electrodes. A current regulator (CR) circuit is connected to, and configured to control current flow through, at least the first electrode during delivery of the therapy under direction of the control circuit. A floating power supply is connected across power supply terminals of the CR circuit. The CR circuit and floating power supply are coupled to a floating ground node that is electrically separate from the reference ground.

    WIRELESS POWER TRANSFER AND HEAT MITIGATION CIRCUIT FOR A RECHARGEABLE IMPLANTABLE PULSE GENERATOR

    公开(公告)号:US20220226659A1

    公开(公告)日:2022-07-21

    申请号:US17411930

    申请日:2021-08-25

    Abstract: An implantable medical device (IMD) includes a rechargeable battery, pulse generating circuitry, an inductive coupling element including at least one inductor operative to accept radio frequency (RF) power from an external charger and generate a charging current. A recharging circuit generates a recharge current for recharging the rechargeable battery, the recharge current being based on the charging current generated from the inductive coupling element. The recharging circuitry is operable to detect a recharging level of the rechargeable battery. A temperature sensor is configured to measure a temperature of at least a part of the IMD and output measured temperature data. A control circuit controls the charging current received at the recharging circuitry to limit the charging current based upon the recharging level and to limit the charging current for a period of time based upon the measured temperature data to communicate a temperature level to the external charger.

    SYSTEM AND METHOD FOR REDUCING HEAT OF AN IMPLANTABLE MEDICAL DEVICE DURING WIRELESS CHARGING

    公开(公告)号:US20220203104A1

    公开(公告)日:2022-06-30

    申请号:US17170473

    申请日:2021-02-08

    Abstract: A wireless charger device is configured to charge an implantable medical device (IMD). A patient controller obtains one or more power parameters from the charger device during charging of the IMD. The patient controller estimates a temperature range of the IMD using the one or more power parameters from the charger device and compares to a heating threshold. The patient controller then determines whether one or more spacers are recommended in response to the comparison. The one or more spacers are removably attached to the wireless charger device and are configured to lay in a position between the wireless charger device and a patient's skin to increase a charging path.

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