Abstract: Cardiac pacemaker for a patient's heart including a processing unit with a data memory, further including a first detector, and a second detector, a pacing signal generator, which are all electrically connected to the processing unit, wherein the first detector is configured to detect time-dependent electrical signals of the heart, wherein the second detector is configured to detect time-dependent bodily signals of the patient different from the signals detected by the first detector, wherein the first detector and the second detector are configured to transmit the detected and, if applicable, pre-processed signals to the processing unit, wherein the processing unit is configured to process the signals received from the first detector and the signals from the second detector and to detect from the received signals of the first detector intrinsic atrial events, intrinsic ventricular events and pacing events and to determine an actual cardiac rate.

Abstract: An implantable medical device, for example an implantable leadless pacemaker, is disclosed comprising a processor, a therapy signal generator, for example a pacing signal generator, as well as a communication unit and a memory unit, wherein the memory unit is configured to exchange data with the processor, wherein the memory unit comprises a ROM sub-unit, a second memory sub-unit and a state element, wherein the state element is configured to be set to one state of a first state and at least one second state, wherein the second memory sub-unit comprises a RAM, wherein the communication unit is configured to receive information comprising a state input information from an external computing device and to transmit at least one data corresponding to this information to the processor, wherein the processor is configured to set the state of the state element.

Abstract: A cardiac pacemaker which stays synchronized with the heart's natural cycle even if atrial sensing events are intermittently sensed and intrinsic AV conduction occurs intermittently. The pacemaker includes a processing unit, a data memory, a detector and a pacing signal generator, wherein the processing unit, the data memory, the detector and the pacing signal generator are electrically interconnected, wherein the data memory is configured to store a pre-defined programmed AV delay, wherein the detector is configured to detect an intrinsic atrial activity signal and to detect an intrinsic ventricular activity signal, wherein the processing unit is configured to produce a ventricular pace control signal and to transmit it to the pacing signal generator. A respective operation method is also disclosed.

Abstract: A cardiac pacemaker for a patient's heart, for example an ILP which realizes integrated circuit space conservation and simple design that covers many modes of operation even though robust behaviour requires complex dynamic adaptive algorithms. The pacemaker includes a processing unit, a detector and a pacing signal generator, wherein the processing unit, the detector and the pacing signal generator are electrically interconnected, wherein the detector is configured to detect electrical signals of the heart, for example an intracardiac electrogram, and to transmit these signals to the processing unit, wherein the processing unit is configured to perceive an intrinsic ventricular signal and an intrinsic atrial signal from the signals received from the detector, to enable or disable the perception of the intrinsic atrial signal, to produce a ventricular pacing control signal.

Abstract: A leadless pacemaker device configured to provide for an intra-cardiac pacing, including: processing circuitry configured to generate ventricular pacing signals for stimulating ventricular tissue, and a reception device for receiving a sensing signal indicative of an atrial activity, wherein the processing circuitry is configured to detect an atrial event derived from said sensing signal, wherein the atrial event is a valid atrial sense event, where a series of atrial events lie within a range for a normal atrial rate, and/or when the atrial rate variability is within a certain range indicating a regular atrial rhythm, wherein in case a valid atrial sense event is detected, the processing circuitry is further configured to: determine ventricular pacing events according to atrial events, calculate ventricular-atrial time delays, determine a correction value based a measured time delay and the calculated time delay, and adjust the ventricular pacing timing based on the correction value.

Abstract: The present disclosure relates to a medical system, comprising at least an implantable medical device, and a multi-axis accelerometer comprised by the implantable medical device for measuring an acceleration of the implantable medical device along a plurality of vectors, wherein the multi-axis accelerometer is configured to provide for each vector a signal indicative of the acceleration of the implantable medical device in the direction of the respective vector. The medical system is configured to assess said signals to automatically select or propose a vector of said plurality of vectors that comprises the best alignment with a pre-defined vector.

Abstract: A patient device for a leadless pacemaker communication system is disclosed. The patient device is configured to receive and transmit data from and to a service device as well as from and to a leadless pacemaker. The patient device comprises a first controlling device for controlling communication from and to a service device and a second controlling device for controlling communication from and to a leadless pacemaker. The second controlling device is immutable.

Abstract: The invention is directed to a communication system for a wireless message transfer between an implantable medical device (IMD) and an external device, comprising an IMD and an external device, wherein the IMD is configured to monitor the health status of a patient and/or configured to deliver a therapy signal to the patient, wherein the IMD comprises a processor, a memory module and a transceiver module configured to bi-directionally exchange the messages with the external device. In order to provide a communication system and method that enables a low-overhead means for supporting communication with a plurality of IMDs and facilitating targeted IMD-specific interactions as part of IMD assembly and in-clinic use, the external device is configured to send a predefined wake-up signal to the transceiver module of the IMD combined with an ID request message following the wake-up signal within a predefined first time interval.

Abstract: An implantable medical device configured to provide for an intracardiac function comprises a body, a sensor arrangement arranged on the body and configured to receive a cardiac sense signal, and a processing circuitry operatively connected to the sensor arrangement. The processing circuitry is configured to process the cardiac sense signal received using the sensor arrangement to detect a signal deflection in the cardiac sense signal potentially indicative of an atrial event caused by atrial activity, and to start a peak detection window based on the detection of said signal deflection for determining a peak amplitude associated with said atrial event. The peak detection window comprises one or more sub-windows, the processing circuitry being configured to determine a candidate peak value in each sub-window and to set the peak amplitude based on the valid candidate peak values of the one or more consecutive sub-windows.

Abstract: The invention is directed to a communication system for a wireless message transfer between an implantable medical device (IMD) and an external device. A communication system is disclosed that effectively throttles/manages messages in a limited resource communication scheme, wherein the IMD is configured to monitor the health status of a patient and/or configured to deliver a therapy signal to the patient, wherein the IMD comprises a processor and a transceiver module configured to bi-directionally exchange the messages with the external device, wherein the processor adopts at least a predefined active state and a predefined processing state, wherein the processor of the IMD is configured to produce response messages in order to send these response messages from the transceiver module to the external device. The invention is further directed to a respective communication method, computer program product and computer readable data carrier.

Abstract: A leadless pacemaker device configured to provide for an intra-cardiac pacing, including: processing circuitry configured to generate ventricular pacing signals for stimulating ventricular tissue, and a reception device for receiving a sensing signal indicative of an atrial activity, wherein the processing circuitry is configured to detect an atrial event derived from said sensing signal, wherein the atrial event is a valid atrial sense event, where a series of atrial events lie within a range for a normal atrial rate, and/or when the atrial rate variability is within a certain range indicating a regular atrial rhythm, wherein in case a valid atrial sense event is detected, the processing circuitry is further configured to: determine ventricular pacing events according to atrial events, calculate ventricular-atrial time delays, determine a correction value based a measured time delay and the calculated time delay, and adjust the ventricular pacing timing based on the correction value.

Abstract: The present invention relates to a system and method for replacing an implanted medical device with an implantable medical replacement device, wherein a programming device sends a command signal to the medical device to change an address of the medical device to a new address being different from an address of the replacement device to allow independent communication of the programming device with both the medical device and the replacement device.

Abstract: A leadless pacemaker, and method for storing event data therein, comprising a central processing unit, a first logic circuit configured to generate event data based on a first event occurring during operation of the leadless pacemaker, a first hardware event counter configured to be incremented if specific event data are generated by said first logic circuit, a first memory unit comprising a first bit configured to be set if said first hardware event counter is incremented to a first maximum number of counts, a second memory unit communicating with said first memory unit, wherein said central processing unit is configured to transfer said first bit to said second memory unit, a first RAM event counter in a random access memory of said leadless pacemaker, wherein said central processing unit is configured to increment said first RAM event counter if said first bit is transferred to the second memory unit.

Abstract: A leadless pacemaker device configured to provide for an intra-cardiac pacing, including: processing circuitry configured to generate ventricular pacing signals for stimulating ventricular activity, and a reception device for receiving a sensing signal indicative of an atrial activity, wherein the processing circuitry is configured to detect an atrial event derived from said sensing signal, wherein the atrial event is a valid atrial sense event, where a series of atrial events lie within a range for a normal atrial rate, and/or when the atrial rate variability is within a certain range indicating a regular atrial rhythm, wherein in case a valid atrial sense event is detected, the processing circuitry is further configured to: determine ventricular pacing events according to atrial events, calculate ventricular-atrial time delays, determine a correction value based a measured time delay and the calculated time delay, and adjust the ventricular pacing timing based on the correction value.

Abstract: The present disclosure relates to a system, comprising: an implantable medical device, wherein the implantable medical device comprises an ultrasound transducer configured to receive an ultrasound wave, a packaging, wherein the packaging encloses an internal space, wherein the implantable medical device is arranged in the internal space, and a device mount arranged in the internal space, wherein the implantable medical device is fastened to the device mount in a releasable fashion, and wherein the device mount contacts an inner side of a portion of the packaging and forms an acoustic coupler configured to pass an ultrasound wave applied to an outer side of the portion of the packaging to the ultrasound transducer of the implantable medical device.

Abstract: The present disclosure relates to a medical system, comprising at least an implantable medical device, and a multi-axis accelerometer comprised by the implantable medical device for measuring an acceleration of the implantable medical device along a plurality of vectors, wherein the multi-axis accelerometer is configured to provide for each vector a signal indicative of the acceleration of the implantable medical device in the direction of the respective vector. The medical system is configured to assess said signals to automatically select or propose a vector of said plurality of vectors that comprises the best alignment with a pre-defined vector.

Abstract: A medical system contains a first implantable device and a second implantable device. Each implantable device contains a communication unit configured to transmit an ultrasonic signal to the communication unit of another implantable device of the medical system. The first implantable device is configured to periodically transmit a broadcast message to at least the second implantable device using the communication unit of the first implantable device.

Abstract: Technology for near infrared (NIR) based communication and/or sensing of implantable medical devices and systems as well as method of operating the same.

Abstract: A leadless pacemaker device configured to provide for an intra-cardiac pacing, including: processing circuitry configured to generate ventricular pacing signals for stimulating ventricular, and a reception device for receiving a sensing signal indicative of an atrial activity, wherein the processing circuitry is configured to detect an atrial event derived from said sensing signal, wherein the atrial event is a valid atrial sense event, where a series of atrial events lie within a range for a normal atrial rate, and/or when the atrial rate variability is within a certain range indicating a regular atrial rhythm, wherein in case a valid atrial sense event is detected, the processing circuitry is further configured to: determine: ventricular pacing events according to atrial events, calculate ventricular-atrial time delays, determine a correction value based a measured time delay and the calculated time delay, and adjust the ventricular pacing timing based on the correction value.

Abstract: A leadless pacemaker, and method for storing event data therein, comprising a central processing unit, a first logic circuit configured to generate event data based on a first event occurring during operation of the leadless pacemaker, a first hardware event counter configured to be incremented if specific event data are generated by said first logic circuit, a first memory unit comprising a first bit configured to be set if said first hardware event counter is incremented to a first maximum number of counts, a second memory unit communicating with said first memory unit, wherein said central processing unit is configured to transfer said first bit to said second memory unit, a first RAM event counter in a random access memory of said leadless pacemaker, wherein said central processing unit is configured to increment said first RAM event counter if said first bit is transferred to the second memory unit.