Abstract: An implantable medical device for stimulating a heart, comprising a control unit, a memory unit, a stimulation unit for stimulating a cardiac region of a heart, and a detection unit for detecting an electrical signal of the heart. The memory unit comprises a computer-readable program that causes the control unit to perform the following steps: a) detecting capture thresholds during an observation period, each capture threshold detected in response to a sequence of pacing pulses delivered by the stimulation unit; b) storing the detected capture thresholds in the memory unit; c) determining threshold-to-threshold differences between two consecutive capture thresholds; and d) if a maximum determined threshold-to-threshold difference within the observation period is equal to or greater than a predetermined limit, adjusting a pacing output of the stimulation unit based on the maximum capture threshold determined within a first time period which is equal to or shorter than the observation period.

Abstract: An implantable medical device for stimulating a heart, comprising a control unit, a memory unit, a stimulation unit for stimulating a cardiac region of a heart, and a detection unit for detecting an electrical signal of the heart. The memory unit comprises a computer-readable program that causes the control unit to perform the following steps: a) detecting capture thresholds during an observation period, each capture threshold detected in response to a sequence of pacing pulses delivered by the stimulation unit; b) storing the detected capture thresholds in the memory unit; c) determining threshold-to-threshold differences between two consecutive capture thresholds; and d) if a maximum determined threshold-to-threshold difference within the observation period is equal to or greater than a predetermined limit, adjusting a pacing output of the stimulation unit based on the maximum capture threshold determined within a first time period which is equal to or shorter than the observation period.

Abstract: An intra-body network system, comprises a first implantable medical device comprising a first communication circuitry and a second implantable medical device comprising a second communication circuitry. The first and second communication circuitries are configured to establish, in an implanted state of the first and second implantable medical devices, a communication for transmitting a communication signal from the first implantable medical device to the second implantable medical device and from the second implantable medical device to the first implantable medical device.

Abstract: An implantable medical device for stimulating a heart, comprising a control unit, a memory unit, a stimulation unit for stimulating a cardiac region of a heart, and a detection unit for detecting an electrical signal of the heart. The memory unit comprises a computer-readable program that causes the control unit to perform the following steps: a) detecting capture thresholds during an observation period, each capture threshold detected in response to a sequence of pacing pulses delivered by the stimulation unit; b) storing the detected capture thresholds in the memory unit; c) determining threshold-to-threshold differences between two consecutive capture thresholds; and d) if a maximum determined threshold-to-threshold difference within the observation period is equal to or greater than a predetermined limit, adjusting a pacing output of the stimulation unit based on the maximum capture threshold determined within a first time period which is equal to or shorter than the observation period.

Abstract: An implantable medical device for stimulating a heart, comprising a control unit, a memory unit, a stimulation unit for stimulating a cardiac region of a heart, and a detection unit for detecting an electrical signal of the heart. The memory unit comprises a computer-readable program that causes the control unit to perform the following steps: a) detecting capture thresholds during an observation period, each capture threshold detected in response to a sequence of pacing pulses delivered by the stimulation unit; b) storing the detected capture thresholds in the memory unit; c) determining threshold-to-threshold differences between two consecutive capture thresholds; and d) if a maximum determined threshold-to-threshold difference within the observation period is equal to or greater than a predetermined limit, adjusting a pacing output of the stimulation unit based on the maximum capture threshold determined within a first time period which is equal to or shorter than the observation period.

Abstract: An implantable medical device, contains control circuitry and communication circuitry for communicating with another implantable medical device. The communication circuitry includes a transmission unit and a reception unit. The transmission unit, for establishing a communication link with the other implantable medical device, is configured to transmit a multiplicity of transmit communication signals, wherein each transmit communication signal is associated with a dedicated sub-range of a predefined frequency range. The reception unit is configured to receive a response communication signal in response to a transmit communication signal. The control circuitry is configured to determine whether a response communication signal in response to a transmit communication signal associated with a dedicated sub-range has been received, and to establish the communication link based on the determination.

Abstract: A medical system, comprising a plurality of devices forming nodes of a network, each device of said plurality of devices is configured to communicate with another device in a wireless fashion by receiving a message from another device in the network or by transmitting a message to another device in the network. A priority is assigned to each device, wherein as long as no other transmission of a message is ongoing in the network, each device is configured to initiate a transmission of a message by transmitting a start signal, wherein the higher the priority of the respective device, the higher the duration of the start signal allocated to the respective device. In case several devices in the network simultaneously initiate a transmission of a message by transmitting a start signal, a permission to transmit a message is automatically granted to the device in the network with the highest priority.

Abstract: An implantable medical device, contains control circuitry and communication circuitry for communicating with another implantable medical device. The communication circuitry includes a transmission unit and a reception unit. The transmission unit, for establishing a communication link with the other implantable medical device, is configured to transmit a multiplicity of transmit communication signals, wherein each transmit communication signal is associated with a dedicated sub-range of a predefined frequency range. The reception unit is configured to receive a response communication signal in response to a transmit communication signal. The control circuitry is configured to determine whether a response communication signal in response to a transmit communication signal associated with a dedicated sub-range has been received, and to establish the communication link based on the determination.

Abstract: A method for arrhythmia detection within a heart signal of a patient, wherein the method is executed by a processor and comprises steps of: providing an input signal which refers to the heart signal of the patient, wherein the input signal comprises cardiac events and noise events, wherein the cardiac events are related to cardiac activity of interest of the heart of the patient, and wherein the noise events are not related to cardiac activity of interest of the heart; determining the cardiac events from the input signal in an arrhythmia detection window; evaluating the arrhythmia detection window by taking into account at least one of: (i) at least one noise event occurring before a start of the arrhythmia detection window, or (ii) at least one noise event occurring after an end of the arrhythmia detection window. Also, a device for arrhythmia detection is provided.