Patent application number | Description | Published |
20090048644 | System and method for providing intrabody data security on an active implantable medical device - A system and method for providing intrabody data security on an active implantable medical device is presented. Data is maintained through an active implantable medical device. The data is secured on the active implantable medical device among at least one other active implantable medical device wirelessly interfaced. At least one of access to and use of the data with the other active implantable medical device is limited. Unauthorized changes to the form of the data are prevented. | 02-19-2009 |
20090177251 | System And Method For In Situ Trimming Of Oscillators In A Pair Of Implantable Medical Devices - A system and method for in situ trimming of oscillators in a pair of implantable medical devices is provided. Each frequency over a range of oscillator trim frequencies for an initiating implantable medical device is selected and a plurality of commands are sent via an acoustic transducer in situ over the frequency selected. Each frequency over a range of oscillator trim frequencies for a responding implantable medical device is selected and a response to each of the commands received is sent via an acoustic transducer in situ over the frequency selected. The responses received by the initiating implantable medical device are evaluated and a combination of the oscillator trim frequencies for both implantable medical devices that together exhibit a strongest acoustic wave is identified. Oscillators in both implantable medical devices are trimmed to the oscillator trim frequencies in the combination identified. | 07-09-2009 |
20090222055 | LOW POWER DIGITAL DESIGN FOR DEEP SUBMICRON TECHNOLOGY - An apparatus comprises an implantable medical device that includes a storage circuit. The storage circuit includes a first stage circuit configured to receive an input signal and to invert and store information about a data bit received in the input signal, a second stage circuit coupled to the output of the first stage circuit to invert and store information about a data bit received from the first stage circuit, and an error circuit coupled to the output of the first stage circuit and an output of the second stage circuit. The error circuit generates an error indication when the storage circuit outputs match while the first stage circuit and the second stage circuit are in an inactive state. | 09-03-2009 |
20100204758 | METHOD AND APPARATUS FOR INTRA-BODY ULTRASOUND COMMUNICATION - An intra-body ultrasonic signal can be converted into a first electrical signal, a local oscillator signal can be generated in an implantable system. The first electrical signal and the local oscillator signal can be mixed in an implantable system, such as to generate a demodulated signal, processed, such as using a filter. The filtered, demodulated signal can be further processed, such as implantably determining a peak amplitude of the first portion of the demodulated signal received from the filter over a time interval, implantably generating a dynamic tracking threshold that starts at an amplitude proportional the first portion of the demodulated signal and exponentially decays over a time interval, and determining a noise floor in the absence of a received intra-body ultrasonic signal and implantably comparing the peak amplitude and the tracking threshold and generate the digital output based on the difference. | 08-12-2010 |
20130033966 | METHOD AND APPARATUS FOR INTRA-BODY ULTRASOUND COMMUNICATION - An intra-body ultrasonic signal can be converted into a first electrical signal, a local oscillator signal can be generated in an implantable system. The first electrical signal and the local oscillator signal can be mixed in an implantable system, such as to generate a demodulated signal, processed, such as using a filter. The filtered, demodulated signal can be further processed, such as implantably determining a peak amplitude of the first portion of the demodulated signal received from the filter over a time interval, implantably generating a dynamic tracking threshold that starts at an amplitude proportional the first portion of the demodulated signal and exponentially decays over a time interval, and determining a noise floor in the absence of a received intra-body ultrasonic signal and implantably comparing the peak amplitude and the tracking threshold and generate the digital output based on the difference. | 02-07-2013 |
20140073972 | METHODS AND SYSTEMS FOR RECHARGING AN IMPLANTED DEVICE BY DELIVERING A SECTION OF A CHARGING DEVICE ADJACENT THE IMPLANTED DEVICE WITHIN A BODY - Methods, systems, and apparatus for recharging medical devices implanted within the body are disclosed. An illustrative rechargeable system includes a charging device that includes an elongate shaft having a proximal section and a distal section. The distal section is configured to be delivered to a location within the body adjacent to the implanted medical device. The charging device includes a charging element configured to transmit charging energy to a receiver of the implanted medical device. | 03-13-2014 |
Patent application number | Description | Published |
20090312650 | IMPLANTABLE PRESSURE SENSOR WITH AUTOMATIC MEASUREMENT AND STORAGE CAPABILITIES - Methods for activating implantable medical devices within a patient's body are disclosed. An illustrative method includes activating an implantable medical device from a low-power state to an awake state in response to a scheduled time event, sensing one or more pressure measurements within the body, computing an average pressure measurement based on the sensed pressure measurements, storing the average pressure measurement within a memory of the implantable medical device, and then returning the device to the low-power state. A triggering event such as the detection of patient activity or motion can also be used to activate the implantable medical device between the low-power state and an active state. | 12-17-2009 |
20100016840 | IMPLANT ASSIST APPARATUS FOR ACOUSTICALLY ENABLED IMPLANTABLE MEDICAL DEVICE - Devices, systems and methods for delivering and positioning an implantable medical device and for evaluating an acoustic communication link are disclosed. An illustrative system includes a catheter adapted to contain an implantable device with a biosensor and an acoustic transducer configured to transmit an acoustic signal, and an implant assist device in acoustic communication with the implantable device via an acoustic communication link. The implant assist device includes an acoustic transducer adapted to receive the acoustic signal transmitted by the implantable medical device, and control/processing circuitry configured to evaluate a performance of the acoustic link. | 01-21-2010 |
20100023091 | ACOUSTIC COMMUNICATION OF IMPLANTABLE DEVICE STATUS - An operational status of an implantable medical device is monitored. The implantable medical device includes a biosensor and an acoustic transducer adapted to transmit and receive acoustic signals. An acoustic link is established with the implantable medical device via a remote acoustic transducer adapted to receive acoustic signals from the implantable medical device and to transmit acoustic signals. Data related to the operational status of the implantable medical device is received from the implantable medical device via the acoustic link. | 01-28-2010 |
20100042177 | PERFORMANCE ASSESSMENT AND ADAPTATION OF AN ACOUSTIC COMMUNICATION LINK - Systems and methods for adapting the performance of an acoustic communication link with an implantable medical device (IMD) are disclosed. An illustrative method includes initiating an acoustic link with the IMD, measuring an initial performance of the acoustic link, determining whether the initial performance of the acoustic link is adequate, adjusting an operating parameter related to the acoustic link in the event the initial performance of the acoustic link is inadequate, measuring a performance of the acoustic link in response to the adjusted operating parameter, and setting the operating parameter to a prior setting if the measured performance of the acoustic link does not improve in response to the adjusted operating parameter. | 02-18-2010 |
20100106028 | METHODS AND SYSTEMS FOR RECHARGING IMPLANTABLE DEVICES - Methods, systems, and apparatus for recharging medical devices implanted within the body are disclosed. An illustrative method of recharging an implanted medical device includes delivering a charging device to a location adjacent to the implanted medical device, activating a charging element coupled to the charging device and transmitting charging energy to a receiver of the implanted medical device, and charging the implanted medical device using the transmitted charging energy from the charging device. | 04-29-2010 |
20110082376 | PHYSIOLOGICAL BLOOD PRESSURE WAVEFORM COMPRESSION IN AN ACOUSTIC CHANNEL - Methods, systems and devices for processing blood pressure measurements are disclosed. An illustrative method includes transmitting a command to an implantable medical device including a blood pressure sensor. The method includes receiving a response from the implantable medical device, the response indicating that the device initiated the sensing of blood pressure measurements. The method includes receiving one or more data packets from the implantable medical device. The one or more data packets can include a base pressure measurement that is representative of a starting point of a blood pressure waveform. The one or more data packets further include a delta value measurement representative of a difference between another blood pressure measurement and the base pressure measurement, or a difference between a current measurement and one or more previous measurements. Additionally, the method includes generating a pressure waveform from the one or more data packets. | 04-07-2011 |
20120116474 | PERFORMANCE ASSESSMENT AND ADAPTATION OF AN ACOUSTIC COMMUNICATION LINK - Systems and methods for adapting the performance of an acoustic communication link with an implantable medical device (IMD) are disclosed. An illustrative method includes initiating an acoustic link with the IMD, measuring an initial performance of the acoustic link, determining whether the initial performance of the acoustic link is adequate, adjusting an operating parameter related to the acoustic link in the event the initial performance of the acoustic link is inadequate, measuring a performance of the acoustic link in response to the adjusted operating parameter, and setting the operating parameter to a prior setting if the measured performance of the acoustic link does not improve in response to the adjusted operating parameter. | 05-10-2012 |
20130178909 | PERFORMANCE ASSESSMENT AND ADAPTATION OF AN ACOUSTIC COMMUNICATION LINK - Systems and methods for adapting the performance of a wireless communication link with an implantable medical device (IMD) are disclosed. An illustrative method includes initiating a wireless link with the IMD, measuring an initial performance of the wireless link, determining whether the initial performance of the wireless link is adequate, adjusting an operating parameter related to the wireless link in the event the initial performance of the wireless link is inadequate, measuring a performance of the wireless link in response to the adjusted operating parameter, and setting the operating parameter to a prior setting if the measured performance of the wireless link does not improve in response to the adjusted operating parameter. | 07-11-2013 |