Abstract: An implantable medical device for sensing physiological signals comprises an arrangement of at least a first electrode pole, a second electrode pole and a third electrode pole, said arrangement of at least the first electrode pole, the second electrode pole and the third electrode pole being configured to sense physiological signals. A processing module is configured for processing physiological signals received via said arrangement of at least the first electrode pole, the second electrode pole and the third electrode pole. The processing module in particular is configured to process different physiological signals received by different pair of electrode poles of the arrangement of at least the first electrode pole, the second electrode pole and the third electrode pole and to assess a cardiac function based on the processing.

Abstract: An implantable medical device for sensing physiological signals comprises an arrangement of at least a first electrode pole, a second electrode pole and a third electrode pole, said arrangement of at least the first, second and third electrode poles being configured to sense physiological signals. The implantable medical device further comprises a processing module for processing signals received via said arrangement of at least the first, second and third electrode poles. The processing module is configured to monitor cardiac activity based on a first signal received by a first pair of electrode poles of the arrangement of at least the first, second and third electrode poles and to assess a consistency of said first signal based on a second signal received by a second pair of electrode poles of the arrangement of at least the first, second and third electrode poles different then said first pair.

Abstract: In a method for operating a drive system and a drive system for carrying out a method, the electric motor is connected to the AC-side connection of an inverter, the DC-side connection of the inverter is connected to the DC-side connection of the rectifier via an inductance, a capacitance is connected to the DC-side connection of the inverter, a series circuit formed from a resistor and a braking chopper is connected to the DC-side connection of the inverter, and the braking chopper is operated with a pulse width modulation frequency, which is determined by a pseudo-random number generator.

Abstract: In a method for operating a drive system, and drive system, having a rectifier and at least one inverter including an electric motor, the electric motor is connected at the AC-voltage-side connection of the inverter, the DC-voltage-side connection of the inverter is connected via inductance(s) in addition to the line inductance, to the DC-voltage-side connection of the rectifier, a capacitance is connected at the DC-voltage-side connection of the inverter and/or at the DC-voltage-side connection of the rectifier, a series circuit, including a resistor and a controllable semiconductor switch is connected at the DC-voltage-side connection of the inverter and/or at the DC-voltage-side connection of the rectifier, the braking chopper being operated using a single frequency during the particular time span in which the braking chopper is in operation, the frequency, e.g., being set apart from the resonant frequency of the resonant circuit including the inductance or the capacitances.

Abstract: In a method for operating a drive system, and drive system, having a rectifier and at least one inverter including an electric motor, the electric motor is connected at the AC-voltage-side connection of the inverter, the DC-voltage-side connection of the inverter is connected via inductance(s) in addition to the line inductance, to the DC-voltage-side connection of the rectifier, a capacitance is connected at the DC-voltage-side connection of the inverter and/or at the DC-voltage-side connection of the rectifier, a series circuit, including a resistor and a controllable semiconductor switch is connected at the DC-voltage-side connection of the inverter and/or at the DC-voltage-side connection of the rectifier, the braking chopper being operated using a single frequency during the particular time span in which the braking chopper is in operation, the frequency, e.g., being set apart from the resonant frequency of the resonant circuit including the inductance or the capacitances.

Abstract: In a method for operating a drive system, and drive system, having a rectifier and at least one inverter including an electric motor, the electric motor is connected at the AC-voltage-side connection of the inverter, the DC-voltage-side connection of the inverter is connected via inductance(s) in addition to the line inductance, to the DC-voltage-side connection of the rectifier, a capacitance is connected at the DC-voltage-side connection of the inverter and/or at the DC-voltage-side connection of the rectifier, a series circuit, including a resistor and a controllable semiconductor switch is connected at the DC-voltage-side connection of the inverter and/or at the DC-voltage-side connection of the rectifier, the braking chopper being operated using a single frequency during the particular time span in which the braking chopper is in operation, the frequency, e.g., being set apart from the resonant frequency of the resonant circuit including the inductance or the capacitances.

Abstract: A medical device and a manufacturing method for such medical device having an assembly comprising: an elongated solid housing with an outer surface and a maximum outer diameter, at least one electrical contact area at the outer surface of the housing, and a processor encapsulated within the housing, wherein the method comprises the following steps: providing the assembly and a tube consisting of a plastic and electrically insulating material, wherein an inner diameter of the tube is greater than the maximum outer diameter (108) of the assembly, accommodating the assembly within the tube such that at least one electrical contact area of the assembly is not covered, and applying a shrinking step to the tube such that the shrunken tube is firmly attached to the outer surface of the housing. The manufacturing method is cheaper and less time consuming than state-of-the-art methods, and also better suitable for automation.

Abstract: A system includes a braking resistor and a controllable switch connected in series, the controllable switch adapted to connect to a terminal on a direct-voltage side of an AC/DC converter; an evaluation unit adapted to generate a control signal to control the controllable switch and including a determination device adapted to determine electric power supplied to the braking resistor; a voltage-acquisition device adapted to supply an output signal to the evaluation unit; and a controller adapted to regulate a set value toward an output signal of the determination device, the controller adapted to supply, directly and/or via a limiter, to a parameterizable filter adapted to convey an output signal to a switching element, the switching element adapted to generate an output signal to open and/or close the controllable switch as a function of exceeding and/or undershooting of a threshold value.

Abstract: A support barrel for an electrical lead includes a first barrel end and a second barrel end opposite to the first barrel end in a circumferential direction. The first barrel end engages the second barrel end and forms a positive engagement acting in the circumferential direction.

Abstract: In a converter system having an AC/DC converter, and a method for operating a converter system, in which the terminal of the AC/DC converter on the direct-voltage side feeds a series circuit, which has a braking resistor and a controllable switch, the terminal of a DC/AC converter, in particular an inverter, on the direct-voltage side being connected in parallel to the series circuit. The output signal of a voltage-acquisition device is supplied to an evaluation unit, which generates a control signal for the controllable switch. The evaluation unit includes a device for determining the electric power supplied to the braking resistor, in particular from the intermediate circuit, which is determined by the device from the output signal of the voltage-acquisition device, in particular. The output signal of the device is supplied to a controller, in particular a linear controller, and the controller controls its set value toward the output signal of the device.

Abstract: In a converter system having an AC/DC converter, and a method for operating a converter system, in which the terminal of the AC/DC converter on the direct-voltage side feeds a series circuit, which has a braking resistor and a controllable switch, the terminal of a DC/AC converter, on the direct-voltage side being connected in parallel to the series circuit. The output signal of a voltage-acquisition device is supplied to an evaluation unit, which generates a control signal for the controllable switch. The evaluation unit includes a device for determining the electric power supplied to the braking resistor. The output signal of the device is supplied to a controller, and the controller controls its set value toward the output signal of the device.

Abstract: A support barrel for an electrical lead includes a first barrel end and a second barrel end opposite to the first barrel end in a circumferential direction. The first barrel end engages the second barrel end and forms a positive engagement acting in the circumferential direction.

Abstract: An electromedical implant, having a housing with three housing segments A, B and C. Segment A is joined to segment B, and segment B is joined to segment C, so that segment B is disposed between segments A and C. Segment A and segment C are at least partially made of electrically conducting material. Furthermore, an electronics module is disposed within housing segment A and has an electric circuit arrangement for picking up and further processing electrical signals, and at least one first and one second electrical conductor for measuring electrical potentials and/or for delivering electric pulses. Each conductor has a conductor start and a conductor end, and each conductor start is connected to the electric circuit arrangement. An electrical feedthrough is at least partially made of electrically insulating material, and segment B is formed by portions of the feedthrough.

Abstract: In a converter system having an AC/DC converter, and a method for operating a converter system, in which the terminal of the AC/DC converter on the direct-voltage side feeds a series circuit, which has a braking resistor and a controllable switch, the terminal of a DC/AC converter, in particular an inverter, on the direct-voltage side being connected in parallel to the series circuit. The output signal of a voltage-acquisition device is supplied to an evaluation unit, which generates a control signal for the controllable switch. The evaluation unit includes a device for determining the electric power supplied to the braking resistor, in particular from the intermediate circuit, which is determined by the device from the output signal of the voltage-acquisition device, in particular. The output signal of the device is supplied to a controller, in particular a linear controller, and the controller controls its set value toward the output signal of the device.

Abstract: A feedthrough of an implantable electronic medical device, including a housing, an insulating body, a feedthrough flange surrounding the insulating body, and at least one connecting element penetrating the insulating body for externally connecting an electric or electronic component of the device, in particular multiple connecting elements, wherein a low-temperature hard solder connection or soft solder connection is provided between the insulating body and the feedthrough flange and/or between the insulating body and the, or at least one, connecting element and/or between the insulating body and the housing, the connection being formed in particular at a temperature of 900° C. or less, preferably less than 450° C., and still more preferably less than 400° C.

Abstract: A spring sleeve for an electrical contact element, in particular for a medical implant, including a connector bore for receiving an electrical mating contact in an insertion direction; at least one spring accommodating region, which is disposed around the connector bore, at least in regions, and is open, at least in regions, toward the connector bore, said spring accommodating region being provided to receive a spring element for the electrical contacting of the electrical mating contact, wherein an open space is provided in the spring accommodating region such that a properly inserted spring element can deflect into the open space when the mating contact is inserted. Furthermore, an electrical contact element comprising a spring sleeve is proposed, as well as a method for producing a contact element.

Abstract: An electrical contact element, in particular for a medical implant, including a spring sleeve with a bushing for receiving an electrical mating contact in a direction of insertion, at least one groove that is arranged transversely around the bushing at least in areas and that is open to the bushing at least in areas; at least one spring element, arranged in the groove, for electrically contacting the electrical mating contact. Here, at least one feed-through channel is provided to feed the spring element into the peripheral groove and leads from an outer face of the spring sleeve to the at least one groove. The invention further relates to a method for producing a contact element and also to a device for carrying out the method.

Abstract: An electrical contact element, in particular for a medical implant, including a spring sleeve with a bushing for receiving an electrical mating contact in a direction of insertion, at least one groove that is arranged transversely around the bushing at least in areas and that is open to the bushing at least in areas; at least one spring element, arranged in the groove, for electrically contacting the electrical mating contact. Here, at least one feed-through channel is provided to feed the spring element into the peripheral groove and leads from an outer face of the spring sleeve to the at least one groove. The invention further relates to a method for producing a contact element and also to a device for carrying out the method.

Abstract: A new hermetically-sealed contact feedthrough for cardiac pacemakers and defibrillators for the connection between internal device electronics and external components, a flat ceramic disk (1) being used as an insulating main carrier, in which openings (3) are situated, into which various electrode embodiments (4, 5, 6, 7) may be inserted as through contacts. Using a metal flange or metal-plated vapor deposition zone (2), the ceramic disk may be soldered directly onto the implant housing (11). In addition, active and passive auxiliary components (8) may be applied directly to the ceramic. The main carrier may be implemented as a multilayer ceramic (9), so that rewiring levels and shielding components (10) may be integrated in the feedthrough. The feedthrough according to the present invention allows novel construction variants, above all things having orientation to multipolar systems, through use of standardized ceramic semifinished products.

Abstract: Housing for medical implant, such as cardiac pacemaker, defibrillator, cardioverter, etc. Housing including hollow housing and terminal body attached to hollow housing, which has electrical terminal(s), situated in an externally accessible cavity of the terminal body, for connecting an electrode line, and terminal body including a base body made of electrically insulating plastic, connected to hollow housing and carries electrical supply lines and electrical contacts, which are electrically connected thereto, for the electrical terminal so that the contacts are connected via the electrical supply lines to electrical components in the interior of the hollow housing, electrical supply lines being welded to the electrical contacts and the electrical supply lines and electrical contacts, which are welded to one another, being embedded in the base body and thus fixed in their final position, and the base body being glued to the hollow housing using an adhesive between hollow housing and terminal body.