Patents by Inventor Michael Vollkron
Michael Vollkron has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9026209Abstract: 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 ?, 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).Type: GrantFiled: July 6, 2010Date of Patent: May 5, 2015Assignee: Biotronik CRM Patent AGInventors: Michael Vollkron, Michael Lippert
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Patent number: 8939904Abstract: 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.Type: GrantFiled: March 4, 2011Date of Patent: January 27, 2015Assignee: Biotronik SE & Co. KGInventors: Michael Lippert, Michael Vollkron, Gerald Czygan, Stefan Paule
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Patent number: 8862231Abstract: An implantable medical device includes a multi-axial acceleration sensor and an evaluation unit connected thereto. The evaluation unit is configured to (1) split the accelerometer output signal into at least two signal components, one of which is associated with a right-ventricular contraction and another of which is associated with a left-ventricular contraction; (2) detect events in the signal components, and/or determine signal features therein; and (3) determine at least one characteristic value K by evaluating the signal components, and/or the events and/or signal features therein.Type: GrantFiled: August 17, 2012Date of Patent: October 14, 2014Assignee: Biotronik SE & Co. KGInventors: Jens Kirchner, Michael Vollkron, Olaf Skerl
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Patent number: 8521265Abstract: 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.Type: GrantFiled: March 30, 2010Date of Patent: August 27, 2013Assignee: Biotronik CRM Patent AGInventors: Michael Vollkron, Gerald Czygan, Thomas Kraemer, Michael Lippert, Olaf Skerl
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Publication number: 20130053907Abstract: An implantable medical device includes a multi-axial acceleration sensor and an evaluation unit connected thereto. The evaluation unit is configured to (1) split the accelerometer output signal into at least two signal components, one of which is associated with a right-ventricular contraction and another of which is associated with a left-ventricular contraction; (2) detect events in the signal components, and/or determine signal features therein; and (3) determine at least one characteristic value K by evaluating the signal components, and/or the events and/or signal features therein.Type: ApplicationFiled: August 17, 2012Publication date: February 28, 2013Inventors: Jens Kirchner, Michael Vollkron, Olaf Skerl
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Patent number: 8303482Abstract: A physiologic control system and method for controlling a blood pump system such as a VAD system. The pump system includes, for example, a blood pump and a controller for controlling the pump. The system may further include a flow measurement device. A desired peak to peak flow amplitude is determined, and then adjusted in response to various system parameters either manually or automatically by the system.Type: GrantFiled: September 7, 2005Date of Patent: November 6, 2012Assignee: MicromedInventors: Heinrich Schima, Michael Vollkron, Gino Morello, Robert Benkowski
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Publication number: 20120078342Abstract: 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.Type: ApplicationFiled: September 14, 2011Publication date: March 29, 2012Applicant: BIOTRONIK SE & CO. KGInventors: Michael Vollkron, Michael Lippert
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Publication number: 20110224748Abstract: 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.Type: ApplicationFiled: March 4, 2011Publication date: September 15, 2011Inventors: Michael LIPPERT, Michael Vollkron, Gerald Czygan, Stefan Paule
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Publication number: 20110112598Abstract: 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 (AVDinst) and the interventricular delay time (VVDinst), and may be used to trigger at certain points in time at least one right ventricular trigger signal and one left ventricular trigger signal, based on new values for the atrioventricular delay time (AVDtest) and the interventricular delay time (VVDtest) which differ from the instantaneous values for the atrioventricular delay time (AVDinst) and the interventricular delay time (VVDinst).Type: ApplicationFiled: November 8, 2010Publication date: May 12, 2011Applicant: BIOTRONIK CRM Patent AGInventors: Michael Vollkron, Thomas Kraemer, Michael Lippert, Gerald Czygan
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Publication number: 20110029035Abstract: 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 ?, 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).Type: ApplicationFiled: July 6, 2010Publication date: February 3, 2011Inventors: Michael Vollkron, Michael Lippert
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Publication number: 20100268294Abstract: 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.Type: ApplicationFiled: March 30, 2010Publication date: October 21, 2010Inventors: Michael Vollkron, Gerald Czygan, Thomas Kraemer, Michael Lippert, Olaf Skerl
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Publication number: 20090005632Abstract: A physiologic control system and method for controlling a blood pump system such as a VAD system. The pump system includes, for example, a blood pump and a controller for controlling the pump. The system may further include a flow measurement device. A desired peak to peak flow amplitude is determined, and then adjusted in response to various system parameters either manually or automatically by the system.Type: ApplicationFiled: September 7, 2005Publication date: January 1, 2009Inventors: Heinrich Schima, Michael Vollkron, Gino Morello, Robert Benkowski
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Publication number: 20060241335Abstract: A physiologic control system and method for controlling a blood pump system such as a VAD system. The pump system includes, for example, a blood pump (12) and a controller (80) for controlling the pump. The system may further include a flow measurement device (124). Various control schemes are disclosed, including according controlling the pump to achieve one or more of a desired speed, flow rate, or flow pulsatility. Additionally, various methods for determining maximal flow (the maximum flow that can be achieved for the patient while maintaining certain parameters or within certain boundaries) are disclosed.Type: ApplicationFiled: June 26, 2003Publication date: October 26, 2006Inventors: Robert Benkowski, Heinrich Schima, Michael Vollkron, Gino Morello