Abstract: A chair having a chair base (1), a seat part (5, 6, 7, 8) connected thereto, a backrest (9, 16, 17) connected thereto, the seat 5 part (5, 6, 7, 8) pivotable about at least one horizontal or inclined horizontal axis and the backrest (9, 16, 17) are spatially adjustable. The seat part (5, 6, 7, 8) has at least three seat elements (5, 6, 7) that can be adjusted in relation to one another and whose operating positions can be adjusted individually.

Abstract: The invention relates to a chair, having a chair base (1), a seat part (5, 6, 7, 8) connected thereto, a backrest (9, 16, 17) connected thereto, the seat part (5, 6, 7, 8) pivotable about at least one horizontal or inclined horizontal axis and the backrest (9, 16, 17) are spatially adjustable. The seat part (5, 6, 7, 8) has at least three seat elements (5, 6, 7) that can be adjusted in relation to one another and whose operating positions can be adjusted individually.

Abstract: An implantable heart stimulating device has an ECG sensing unit to receive heart potential signals from sensing electrodes at an electrode lead arranged in connection with a patient's heart. The ECG sensing unit is provided with a programmable make-break threshold. The device further has a timer adapted to generate a make-break detection period, and a counter. The counter is adapted to count the number of times that the amplitude of the heart potential signal exceeds the programmable make-break threshold during the make-break detection period. When the number of times is higher than a predetermined value, the ECG obtained during the make-break detection period is stored in an ECG storage unit.

Abstract: An implantable heart stimulating device has an ECG sensing unit to receive heart potential signals from sensing electrodes at an electrode lead arranged in connection with a patient's heart. The ECG sensing unit is provided with a programmable make-break threshold. The device further has a timer adapted to generate a make-break detection period, and a counter. The counter is adapted to count the number of times that the amplitude of the heart potential signal exceeds the programmable make-break threshold during the make-break detection period. When the number of times is higher than a predetermined value, the ECG obtained during the make-break detection period is stored in an ECG storage unit.

Abstract: A cardiac pacemaker has an algorithm for dynamic overdrive of a patient's atria in order to suppress atrial tachyarrhythmias. The device further has circuitry for adapting the AV-delay during dynamic overdrive of the atria to a value adapted to the patient's needs.

Abstract: An implantable cardiac stimulating device has a pacing circuit connected via an electrode lead system to a first electrode which stimulates and detects activity in the left ventricle, a second electrode to stimulate and detect activity in the right atrium, and to a third electrode to detect activity in the left atrium. Upon the occurrence of a paced or sensed depolarization of the right atrium, a first AV-delay is started. When the subsequent left atrial depolarization is detected, a new AV-interval is started that is optimized for the left side of the heart. Either the left ventricle only, or both ventricles, is paced at the optimized left side AV-interval.

Abstract: A method and apparatus are disclosed for tracing leaks in vivo which occur in an electrode device, such as a pacemaker or a defibrillator, the electrode device including an electrode cable containing an elongate, flexible conductor having an exterior covered with a layer of insulation and having an interior channel. A leakage tracing device which is simple in structure, and therefore inexpensive to make, and with which one or more leaks in an electrode cable implanted in a patient is/are readily detectable, has a tubular, flexible body within an external diameter smaller than inner diameter of the interior channel of the electrode cable. The tubular body can be inserted into the electrode cable's interior channel all the way to the channel's distal end, and the proximal end of the tubular body is connected to a container for a fluid.