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| Number | Title | Issue Date |
| 8185210 | Communication system and method with preamble encoding for an implantable medical device Medical data is communicated from a transmitter of an external unit to a receiver of an implantable medical device. The transmitter generates a preamble signal having encoded configuration data that informs the receiver of configuration settings to be used in receiv... | 05/22/2012 |
| 8170515 | Method and apparatus for the phased detection of a signal including a frequency deviation detection phase A plurality of phases of sniff operations are performed for detecting wake-up signals being received by an implantable medical device (IMD), including a phase that performs a staged detection of whether the integrated frequency deviation of a received signal is outs... | 05/01/2012 |
| 8165691 | Implantable medical device with selectively configurable exposure operating mode programming options An IMD is selectively configurable to support a plurality of programming options for enabling and disabling an exposure operating mode of the device. In one example, the IMD may support at least two of a manual exposure mode programming option in which the exposure ... | 04/24/2012 |
| 8145320 | Telemetry control for implantable medical devices An implantable medical device (IMD) and method are provided in which a telemetry module in the IMD includes a configurable polling interval at which the telemetry module is powered up from a low power inactive state to perform sniff operations for detecting whether ... | 03/27/2012 |
| 8126553 | Sensing integrity determination based on cardiovascular pressure Electrical noise may be discriminated from sensed heart signals based on cardiovascular pressure. A plurality of detected cardiovascular pressure values are respectively associated with a plurality of detected tachyarrhythmia events. In some examples, a variance in ... | 02/28/2012 |
| 8126549 | Cardiac protection system and method A cardiac ischemic protection system and method for conditioning a patient's heart is provided. The method can include detecting acute myocardial infarction, angina pectoris, silent ischemia, or stunning and providing closed-loop dyssynchronous pacing to the patient... | 02/28/2012 |
| 8126418 | Preselector interference rejection and dynamic range extension A wireless telemetry module and associated method reject interference in a received signal. The wireless telemetry module includes an antenna receives a communication signal transmitted at a desired channel frequency and having a channel bandwidth. A transceiver is ... | 02/28/2012 |
| 8121705 | MRI-safe defibrillator electrodes The present invention reduces patient risks associated with RF-induced thermogenic tissue damage and with pulsed gradient-field-induced arrhythmias by using a defibrillator lead having a self-healing dielectric material that prevents induced voltages from MRI equipm... | 02/21/2012 |
| 8108044 | Method and apparatus for the staged detection of RF energy A low power method and apparatus for detecting wake-up signals in sniff processing performed in an implantable medical device (IMD) using a staged detection of RF energy in signals received in order to conserve current consumption. Incoming signals are monitored in ... | 01/31/2012 |
| 8102789 | System and method for synchronous wireless communication with a medical device Constituents of a network of medical devices communicate according to a synchronous communication protocol. A constituent of the network is established as a conductor. Time slots are assigned to each constituent of the network other than the conductor. Information i... | 01/24/2012 |
| 8099164 | Selectively implementable digital signal processing circuit for an implantable medical device Embodiments of the invention include an implantable medical device having a digital signal processing circuit associated with an implantable medical device function. The digital signal processing circuit can be selectively implementable according to the clinical nee... | 01/17/2012 |
| 8089787 | Switched capacitor DC-DC voltage converter The disclosure describes techniques for converting an input voltage level to two or more output voltage levels using only two pump capacitors and three switching phases. The disclosure also describes techniques for selectively controlling a dc-dc converter to operat... | 01/03/2012 |
| 8065018 | System and method for unscheduled wireless communication with a medical device Unscheduled wireless communication with a medical device is achieved by operating a receiver of the medical device in a series of modes. Each mode provides an increasingly selective evaluation of received RF energy. The receiver, when operating in a first mode, is c... | 11/22/2011 |
| 8059628 | Low power multiple channel mixing architecture for detecting wake-up signals and related falsing protection algorithm A low power multiple channel receiver mixing architecture for detecting wake-up signals over multiple communication channels in sniff processing performed in an implantable medical device (IMD). The architecture includes a direct conversion real receiver configured ... | 11/15/2011 |
| 8050771 | Phased array cofire antenna structure and method for operating the same An antenna structure for an implantable medical device (IMD) is provided that includes an antenna embedded within a structure derived from a plurality of discrete dielectric layers. An array of electrodes are connected to the antenna structure and arranged for apply... | 11/01/2011 |
| 8050763 | Isolation circuitry and method for gradient field safety in an implantable medical device An implantable medical device is provided for isolating an elongated medical lead from internal device circuitry in the presence of a gradient magnetic or electrical field. The device includes an isolation circuit adapted to operatively connect an internal circuit t... | 11/01/2011 |
| 8041433 | Magnetic resonance imaging interference immune device A wire form includes a conductor having a distal end and a proximal end. The conductor is coiled and has a predetermined spacing between adjacent coils. The predetermined spacing provides a parasitic capacitance and an inductance. The parasitic capacitance and induc... | 10/18/2011 |
| 8041410 | Medical device sensing and detection during MRI A medical device includes a sensor for sensing for an MRI gradient magnetic field and a microprocessor for responding to the detected gradient magnetic field by switching from a first electrical signal processing mode to a second electrical signal processing mode, s... | 10/18/2011 |
| 8019433 | Adaptive interference reduction during telemetry An implantable medical device has a first module for performing telemetry communications with another device and a second module for delivering a high voltage therapy to a patient. The first module is configured to detect a communication error, and the second module... | 09/13/2011 |
| 7979089 | Wireless data communication card with compact antenna A wireless data communication card configured in accordance with an example embodiment of the invention includes a low profile antenna arrangement that does not protrude from the housing of the computing device when the wireless data communication card is inserted i... | 07/12/2011 |
| 7974690 | Lead integrity testing during suspected tachyarrhythmias Techniques for performing a lead integrity test during a suspected tachyarrhythmia are described. An implantable medical device (IMD) may perform the test prior to delivering a therapeutic shock to treat the suspected tachyarrhythmia and, in some cases, may withhold... | 07/05/2011 |
| 7941226 | Magnetostrictive electrical stimulation leads A medical device lead is presented. The medical device lead includes a lead body, an electrode shaft, and a tip electrode. A magnetostrictive element is coupled to the electrode shaft. The magnetostrictive element comprises either terfenol-D and/or galfenol or any m... | 05/10/2011 |
| 7941225 | Magnetostrictive electrical stimulation leads A medical device lead is presented. The medical device lead includes a lead body, an electrode shaft, and a tip electrode. A magnetostrictive element is coupled to the electrode shaft. The magnetostrictive element comprises either terfenol-D and/or galfenol or any m... | 05/10/2011 |
| 7940933 | Secure telemetric link A communications protocol is used to provide data privacy, message integrity, message freshness, and user authentication to telemetric traffic, such as to and from implantable medical devices in a body area network. In certain embodiments, encryption, message integr... | 05/10/2011 |
| 7936214 | Third order derivative distortion cancellation for ultra low power applications An apparatus and method for the cancellation of third order derivative distortion for ultra low power (ULP) applications are disclosed involving a first amplifier connected in parallel with a second amplifier for amplifying a received signal. The first amplifier inc... | 05/03/2011 |
| 7935935 | Radiation-based timer for implantable medical devices A radiation-based timer for use in an implantable medical device (IMD) includes a radiation source and a radiation detection circuit. The radiation source emits radiation particles during a process referred to as radioactive decay. The radiation detection circuit de... | 05/03/2011 |
| 7934508 | Tactile feedback for indicating validity of communication link with an implantable medical device Implantable medical device telemetry is provided between an implantable medical device and an external communication device. The implantable medical device includes a device transmitter and/or a device receiver. The external communication device includes a moveable ... | 05/03/2011 |
| 7930543 | Secure telemetric link A communications protocol is used to provide data privacy, message integrity, message freshness, and user authentication to telemetric traffic, such as to and from implantable medical devices in a body area network. In certain embodiments, encryption, message integr... | 04/19/2011 |
| 7930024 | Reducing inappropriate delivery of therapy for suspected non-lethal arrhythmias An implantable medical device (IMD) identifies suspected non-lethal ventricular arrhythmia, and takes one or more actions in response to the identification to avoid or delay delivery of a defibrillation or cardioversion shock. The IMD employs number of intervals to ... | 04/19/2011 |
| 7923865 | Multi-mode switched capacitor dc-dc voltage converter The disclosure describes techniques for converting an input voltage level to two or more output voltage levels using only two pump capacitors and three switching phases. The disclosure also describes techniques for selectively controlling a dc-dc converter to operat... | 04/12/2011 |
| 7912537 | Telemetry-synchronized physiological monitoring and therapy delivery systems A physiological monitoring or therapy delivery system includes autonomous, wirelessly linked, implantable devices located at different areas to sense physiologic signals and deliver therapy. At least one of the implantable devices can trigger synchronized action (e.... | 03/22/2011 |
| 7904178 | Medical electrical lead body designs incorporating energy dissipating shunt An elongate body of a medical electrical lead includes at least one conductor formed into a coil that includes a first portion and a second portion, wherein the first portion extends within an outer insulation sheath and the second portion extends outside the outer ... | 03/08/2011 |
| 7904170 | Radio frequency transponder based implantable medical system An implantable medical device (IMD) system includes an IMD, a transceiver antenna lead for the IMD, and a wireless therapy delivery transponder or probe that is remotely activated by the IMD via the transceiver antenna lead. The IMD and the wireless probe communicat... | 03/08/2011 |
| 7894884 | System and method for ischemia classification with implantable medical device An implantable medical device monitors ST segment data collected from EGM. ST trends are established and monitored over time. The IMD is able to discern whether the data indicate supply ischemia, demand ischemia, or other physiological causes. The IMD is then able t... | 02/22/2011 |
| 7890181 | System and method for unscheduled wireless communication with a medical device Data is communicated from a transmitter of an external unit to a receiver of an implantable medical device. The receiver of the implantable medical device operates in a wide band receiver mode to detect the transmission from the external unit and operates in a narro... | 02/15/2011 |
| 7886608 | Pressure sensor configurations for implantable medical electrical leads An implantable pressure sensor, which may be incorporated within an implantable medical electrical lead, includes an insulative sidewall, which contains a gap capacitor and an integrated circuit. The insulative sidewall of the pressure sensor includes a pressure sen... | 02/15/2011 |
| 7881786 | Suppression of high rate pacing for reducing myocardial ischemic irritability A medical device capable of delivering automatic rate-adjusting pacing therapies is provided having an adjustable upper rate limit responsive to an indication of myocardial irritability. The device, which may be embodied as a pacemaker, a pacemaker/cardioverter/defi... | 02/01/2011 |
| 7865247 | Medical leads with frequency independent magnetic resonance imaging protection A medical device having a diode configuration in a lead assembly that substantially reduces induced currents in a lead assembly and at a tissue interface. The diodes configure an electrical path such that a stimulation pulse travels from the medical device to a sele... | 01/04/2011 |
| 7839146 | Magnetic resonance imaging interference immune device A medical apparatus includes a medical assist device to process signals to relating biological functions. A first lead is operatively connected to the medical assist device, the first lead having a distal end and a proximal end. A second lead is operatively connecte... | 11/23/2010 |
| 7801625 | Electromagnetic interference immune pacing/defibrillation lead An electromagnetic interference immune defibrillator lead has a first electromagnetic insulating layer. A first layer is formed on the first electromagnetic insulating layer, the first layer having a plurality of first conductive rings composed of first conductive m... | 09/21/2010 |
