Patent application number | Description | Published |
20080249585 | IMPLANTABLE MEDICAL DEVICE AND METHOD FOR LV CORONARY SINUS LEAD IMPLANT SITE OPTIMIZATION - A device is connected to electrode leads which performs intracardiac impedance measurements, conducts a transient pacing protocol, analyses the impedance measurements, and generates an LV lead position quality factor. The transient pacing protocol includes a repeated change (“transitions”) between ventricular intrinsic rhythm and biventricular paced rhythm and may also include a variation of the atrioventricular delay (AVD) and/or the interventricular delay (VVD). The quality factor expresses the degree to which hemodynamic properties have improved due to BiV stimulation for the current LV lead position compared to intrinsic ventricular rhythm. | 10-09-2008 |
20090048524 | IMPLANTABLE PRESSURE MEASURING UNIT AND CONFIGURATION FOR INTERNAL PRESSURE MEASUREMENT IN A BLOOD VESSEL - Implantable pressure measuring unit for internal pressure measurement in a blood vessel or heart of a patient, having a pressure sensor having electrical signal output, fixing means adapted to the intended measurement location for fixing the pressure sensor, a power supply unit of the pressure sensor, a signal detection unit connected by a line to the signal output of the pressure sensor, and a transmitting unit connected to a measurement data output of the signal detection unit, in particular for wireless transmission of measurement data to an analysis unit, in particular outward from the patient body. | 02-19-2009 |
20100010354 | IMPLANTABLE ULTRASONIC MEASUREMENT ARRANGEMENT - An implantable measurement arrangement for intracorporeal acoustic measurement of geometric parameters and motion parameters in and on organs and/or tissues of a patient includes an implantable device, in particular an electromedical device; an implantable sonic transducer for transmitting and receiving ultrasonic waves, the transducer being in signal connection with the implantable device; and an implantable reflector in communication with the implantable device and situated at a distance from the sonic transducer for reflecting the ultrasonic waves back in the direction of the sonic transducer. The electromedical device can analyze the ultrasonic waves picked up and reflected back by the sonic transducer. | 01-14-2010 |
20100268041 | APPARATUS AND METHOD FOR PROCESSING PHYSIOLOGICAL MEASUREMENT VALUES - A monitoring apparatus having a signal input for signals representing measurement values of one or more physiological parameters, and an evaluation and processing unit connected to the signal input. The evaluation and processing unit is designed to select, or differently weight, individual values from the values received for further processing based on one or more criteria such that measurement values raising doubts as to the validity thereof are not selected or given a very low weighting. | 10-21-2010 |
20100268294 | HEART MONITOR - Embodiments relate to a heart monitor, which is connected to or can be connected to at least one sensor for pressure and volume data or equivalent substitute variables and which comprises an evaluation unit for processing at least one input signal reflecting the temporal course of pressure and volume data or equivalent substitute variables of the heart. The evaluation unit is configured such that it segments the input signal in accordance with individual completed cardiac cycles and examines segments of the input signal obtained in this way as to whether a particular segment of the input signal represents a PV diagram, which corresponds to specified quality conditions regarding the direction of circulation, morphology and distance between a starting and end values. | 10-21-2010 |
20110029035 | VENTRICULAR CARDIAC STIMULATOR - An implantable cardiac stimulator includes at least one first sensing unit for detecting intrinsic cardiac activities of a first ventricle, at least one ventricular stimulation unit for stimulating a second ventricle, and a stimulation control unit connected to the first sensing unit. The stimulation unit processed output signals of the first sensing unit and generates control signals for the stimulation units. The stimulation control unit derives a current intrinsic RR interval from detected ventricular intrinsic cardiac activities R of the first ventricle, and to determine from the RR interval a delay interval Δ, which begins with a ventricular event of the first ventricle and at the end of which the stimulation control unit triggers a stimulation of the second ventricle (unless it is suppressed). | 02-03-2011 |
20110112598 | Biventricular Cardiac Stimulator - A biventricular cardiac stimulator is disclosed, comprising a right ventricular stimulation unit, a left ventricular stimulation unit, and a pacemaker timer. In order to detect the effect of a particular atrioventricular delay time (AVD) and a particular interventricular delay time (VVD), the cardiac stimulator has a detector for sensing a hemodynamic benefit. To optimize AVD and VVD, the pacemaker timer is connected to a memory for a particular instantaneous value for the atrioventricular delay time (AVD | 05-12-2011 |
20110224520 | ELECTROMEDICAL IMPLANT AND MONITORING SYSTEM - An electromedical implant for monitoring a thoracic property of a living being is provided that includes a detector arrangement including an impedance measuring unit and an electrode arrangement, which are equipped to capture a measurement signal associated with the thoracic property in the form of an impedance signal; a monitoring arrangement, which is connected to the detector arrangement and equipped to generate a parameter from the measurement signal that is indicative of the thoracic property, and an evaluation unit, which is connected to the monitoring arrangement and equipped to determine an evaluation result regarding the thoracic property based on the parameter. According to the invention, the electrode arrangement comprises at least a plurality of mutually isolated electrodes, which are disposed on the housing and operatively connected by way of the impedance measuring unit and which can be separately controlled, wherein an electrode body has a strip shape. | 09-15-2011 |
20110224748 | MONITORING DEVICE AND METHOD FOR OPERATING A MONITORING DEVICE - A monitoring device for a patient for predicting a cardiovascular anomaly and a method for operating a monitoring device is provided. Furthermore, an implantable electrotherapy device, such as an implantable cardiac pacemaker, an implantable cardioverter, or an implantable defibrillator, having a monitoring device are also provided. In an embodiment, the monitoring device acquires a value change of a hemodynamic parameter, which occurs as a result of a detected value change of a state parameter, for example, as a result of an activation or deactivation of a cardiac resynchronization therapy. By suitable evaluation of the value change of the hemodynamic parameter, the monitoring device can output an evaluation result signal which is indicative of an imminence of a cardiovascular anomaly, such as a cardiac decompensation, long beforehand and with high specificity. | 09-15-2011 |
20120078342 | POSITIONING CATHETERS USING IMPEDANCE MEASUREMENT - The invention relates to a method for determining the position of a catheter in a blood vessel relative to a change in the vascular cross section, comprising the steps: providing a catheter that includes at least two electrodes which can be brought into electrically conductive contact with the surrounding blood while the catheter is being positioned in the blood vessel, wherein the two electrodes are installed on the catheter along the longitudinal axis at a defined distance from each other; advancing the catheter in the vessel to be treated, toward the change in the vascular cross section; and measuring the impedance across the two electrodes while the catheter is being advanced; and to a catheter for use in a method of this type. | 03-29-2012 |
20120203113 | BLOOD FLOW SENSOR - A blood flow rate sensor has at least one transmitter for emitting waves into a blood vessel, the propagation of which is deflected by cellular blood components, and at least two receiver units for receiving waves emitted by the transmitter. The receiver units are spaced from each other in the direction of blood flow, and are situated such that each receives waves from a different path through the blood. The output signal of each receiver unit is filtered or otherwise processed to obtain a noise component, and the noise components from the receiver units are cross-correlated to determine a time offset between the output signals. The time offset is inversely proportional to the blood flow rate. | 08-09-2012 |
20120245476 | IMPLANTABLE MEDICAL DEVICE - An implantable medical device includes an integrated or connectable implantable three-dimensional acceleration sensor, and a ballistocardiogram (BCG) capturing unit that is connected or connectable to the acceleration sensor. The BCG evaluation unit processes an acceleration signal provided by the acceleration sensor and derives a BCG from the 3D accelerometer output signal. A BCG evaluation unit is connected to the BCG capturing unit, and is designed to evaluate a BCG provided by the BCG capturing unit and supply an output signal representing stroke volume. | 09-27-2012 |