Patent application number | Description | Published |
20120283544 | IMPLANTABLE APPARATUS FOR DETECTION OF EXTERNAL NOISE USING MOTION SENSOR SIGNAL - Detects external noise using a motion sensor signal for example to increase the specificity of arrhythmia detections based on active muscle noise detection. Whenever a motion signal is present that is below or above a certain frequency, for example 5 Hz, or within a certain frequency range, for example 1 to 10 Hz, and/or above a certain amplitude, for example greater than 1 mg, or close to a known motion pattern, then the detection of fast ventricular arrhythmia is suspended. For the detection of slow arrhythmia, for example asystole or syncope, an episode is confirmed when a short lasting motion sensor signal occurs. Uses a motion sensor based signal, for example as obtained from an accelerometer on an implantable electrode lead and/or implantable device. | 11-08-2012 |
20120283589 | ARRHYTHMIA DETECTION BASED ON ACTIVE MUSCLE NOISE DETECTION - Implantable electromedical device or loop recorders or ILRs that solve the problem of very low arrhythmia detection specificities in, i.e., high number of false positives, based on detection and analysis of external noise, specifically muscle noise surrounding the electromedical device. Embodiments generally employ active detection of lead or device movement that induces signal artifacts indicative of external noise. One or more embodiments may detect lead or device movement through use of a piezoelectric transducer, for example located proximally to the device or in the lead of the electromedical. | 11-08-2012 |
20130303872 | INJECTABLE LEADLESS HEART STIMULATION AND/OR MONITORING DEVICE - An injectable leadless heart stimulation and/or monitoring system is provided that includes an device having a sealed housing, one or more electrodes configured to electrically contact heart tissue when in use and electric components arranged within the housing. The electric components are at least in part operationally connected to the at least one electrode. The electric components include a power supply for providing power to the electric components. The power supply includes a rechargeable battery and further includes an implant-based coil that is configured to receive electric power via a tuned magnetic or electromagnetic field. | 11-14-2013 |
20140163892 | METHOD FOR DETERMINING IF AN IMPLANTABLE MEDICAL DEVICE IS MAGNETIC RESONANCE CONDITIONAL - A method for determining if an implantable medical device (IMD) in a patient is magnetic resonance conditional. Embodiments include a Home Monitoring Service Center (HMSC) that indicates if the IMD is MR conditional and what those conditions are. The IMD includes memory with flags, enabling a physician to set a flag to “MR conditional” if the IMD is MR conditional, if there are no abandoned leads in the patient, and if there are no other hardware in the patient that are not MR conditionally approved. In embodiments, the flags indicate safe for 1.5 T, 3.0 T, 1.5 & 3.0 T, up to 2 W/Kg, up to 4 W/Kg, with/without exclusion zone, and date flags are set. During home monitoring, the HMSC reads out a status of the MR conditional flags and the date last confirmed. If the patient needs an MRI scan, physician queries HMSC to determine MR conditional status. | 06-12-2014 |
20140379048 | CONDUCTIVE INTRA-BODY COMMUNICATION FOR IMPLANTABLE MEDICAL DEVICES - An implantable medical device including a data communication interface connected to a pulse generator. The pulse generator generates and delivers forward current pulses and reverse current pulses, wherein a polarity of the reverse current pulses is opposite to the polarity of the forward current pulses. Generates pulses representing binary digits, wherein a first kind of digits (1 or 0) is represented by a current pulse, and a second kind of digit respective of the other type of binary digits (0 or 1) is represented by a pause between current pulses. The data communication interface together with the pulse generator deliver current pulses with strictly alternating polarity such that every other current pulse is a reverse current pulse of opposite polarity compared to an immediately preceding forward current pulse. Thus, every string of current pulse is both, charge balancing and information encoding. | 12-25-2014 |
Patent application number | Description | Published |
20090182388 | IMPLANTABLE MEDICAL DEVICE WITH WIRELESS COMMUNICATIONS - An implantable medical device for use in a patient management system is described, including a sensor capable of measuring a body characteristic and generating a data signal describing the measurement, and a processor configured to analyze the data signal and identify one or more significant events that warrant attention for the well-being of a patient. The implantable medical device further includes a first non-rechargeable battery configured to power at least the sensor and the processor. In addition, a first communications unit is configured to be powered by the first non-rechargeable battery and includes a wireless transmitter capable of establishing a first communications link with a host computer using an external local receiver, when said first wireless transmitter is within a short-range telemetry communication range of said local receiver, to deliver notification of the significant events to the host computer. The implantable medical device also includes a second rechargeable battery and a second communications unit powered by the second rechargeable battery. The second communications unit is capable of establishing a second communications link with said host computer over a pervasive wireless communications network, such as a cell phone network, to deliver notification of the significant events to the host computer. | 07-16-2009 |
20090182426 | IMPLANTABLE MEDICAL DEVICE WITH ANTENNA - An implantable medical device for use in a patient management system is described including a sensor, a processor, and a first communications unit. The first communications unit can deliver notification of significant events to a host computer using a short-range telemetry first communications link. A second communications unit can deliver notification of the significant events to the host computer over a second communications link, which is over a pervasive wireless communications network, such as a cell phone network. The device includes an antenna that is operatively connected to both the first and second communications units. | 07-16-2009 |
20110040159 | Implantable Medical Device With Antenna - An implantable medical device for use in a patient management system is described including a housing, a first communications unit, and a second communications unit. The first communications unit can establish a first communications link within short range telemetry communication range of an external local device. The second communications unit can establish a second communications link over a pervasive wireless communications network with a remote computer. A pervasive wireless communications network can include a cell phone network. The device further includes an antenna that is configured to be operatively connected to both the first and second communications units. | 02-17-2011 |
20120197231 | IMPLANTABLE MEDICAL DEVICE WITH CHEMICAL SENSOR AND RELATED METHODS - In an embodiment, the invention includes an implantable medical device with a pulse generator and a chemical sensor in communication with the pulse generator, the chemical sensor configured to detect an ion concentration in a bodily fluid. In an embodiment, the invention includes a method for providing cardiac arrhythmia therapy to a patient including sensing a physiological concentration of an analyte, communicating data regarding the physiological concentration of the analyte to an implanted pulse generator, and delivering therapy to the patient based in part on the physiological concentration of the ion. In an embodiment, the invention includes a method for monitoring diuretic therapy. In an embodiment, the invention includes a method for controlling delivery of an active agent into a human body. Other aspects and embodiments are provided herein. | 08-02-2012 |