Patents by Inventor Gary L. Berg
Gary L. Berg 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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Publication number: 20220370800Abstract: A medical device senses cardiac electrical signals including T-waves attendant to ventricular myocardial repolarizations and detects a T-wave template condition associated with non-pathological changes in T-wave morphology. The device generates a T-wave template from T-waves sensed by the sensing circuit during the T-wave template condition. After generating the T-wave template, the device acquires a T-wave signal from the cardiac electrical signal and compares the acquired T-wave signal to the T-wave template. The device detects a pathological event in response to the acquired T-wave signal not matching the T-wave template.Type: ApplicationFiled: July 22, 2022Publication date: November 24, 2022Inventors: Inna A. PIKULENKO, Gary L. BERG, Jeffrey M. GILLBERG
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Patent number: 11439830Abstract: A medical device senses cardiac electrical signals including T-waves attendant to ventricular myocardial repolarizations and detects a T-wave template condition associated with non-pathological changes in T-wave morphology. The device generates a T-wave template from T-waves sensed by the sensing circuit during the T-wave template condition. After generating the T-wave template, the device acquires a T-wave signal from the cardiac electrical signal and compares the acquired T-wave signal to the T-wave template. The device detects a pathological event in response to the acquired T-wave signal not matching the T-wave template.Type: GrantFiled: March 20, 2020Date of Patent: September 13, 2022Assignee: Medtronic, Inc.Inventors: Inna A. Pikulenko, Gary L. Berg, Jeffrey M. Gillberg
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Publication number: 20200298002Abstract: A medical device senses cardiac electrical signals including T-waves attendant to ventricular myocardial repolarizations and detects a T-wave template condition associated with non-pathological changes in T-wave morphology. The device generates a T-wave template from T-waves sensed by the sensing circuit during the T-wave template condition. After generating the T-wave template, the device acquires a T-wave signal from the cardiac electrical signal and compares the acquired T-wave signal to the T-wave template. The device detects a pathological event in response to the acquired T-wave signal not matching the T-wave template.Type: ApplicationFiled: March 20, 2020Publication date: September 24, 2020Inventors: Inna A. PIKULENKO, Gary L. BERG, Jeffrey M. GILLBERG
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Patent number: 8452396Abstract: Systems and methods are described for analyzing a plurality of beats after detection of a suspected cardiac arrhythmia to determine a beat discriminator, identify a beat subsequent to completion of charging of an implantable medical device by applying the beat discriminator, and synchronize delivery of a shock from the medical device to the identified beat. In some examples, identifying the beat using the beat discriminator may help to accurately synchronize the shock with a beat representative of physiological cardiac events instead of an oversensed beat, e.g., noise sensed signal that is misclassified as a cardiac beat.Type: GrantFiled: December 30, 2010Date of Patent: May 28, 2013Assignee: Medtronic, Inc.Inventor: Gary L. Berg
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Publication number: 20120172942Abstract: Systems and methods are described for analyzing a plurality of beats after detection of a suspected cardiac arrhythmia to determine a beat discriminator, identify a beat subsequent to completion of charging of an implantable medical device by applying the beat discriminator, and synchronize delivery of a shock from the medical device to the identified beat. In some examples, identifying the beat using the beat discriminator may help to accurately synchronize the shock with a beat representative of physiological cardiac events instead of an oversensed beat, e.g., noise sensed signal that is misclassified as a cardiac beat.Type: ApplicationFiled: December 30, 2010Publication date: July 5, 2012Applicant: Medtronic, Inc.Inventor: Gary L. Berg
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Patent number: 7867159Abstract: A centrifugal method, and corresponding system, for processing blood to collect platelet rich plasma. A separation chamber is filled with blood from a fill syringe by rotating the separation chamber at a fill rotation rate and pumping the blood from the fill syringe. A soft spin is used to initially separate red blood cells from platelets by spinning the separation chamber at a soft spin rate. A percentage of the blood is drawn from the separation chamber back into the fill syringe to remove separated red blood cells. A second portion of the separated blood is drawn from the separation chamber until a red blood cell/platelet interface is detected. A hard spin is performed by spinning the separation chamber at a higher rate and connecting tubing is cleared of red blood cells by drawing a predetermined clearing volume. The platelet rich plasma is then collected in the collection syringe.Type: GrantFiled: June 4, 2007Date of Patent: January 11, 2011Assignee: Arteriocyte Medical Systems, Inc.Inventors: Victor D. Dolecek, Gary L. Berg, Kenneth E. Merte, David Malcolm, Kevin D. McIntosh, Vitaly G. Sitko
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Patent number: 7306555Abstract: A centrifugal method, and corresponding system, for processing blood to collect platelet rich plasma. A separation chamber is filled with blood from a fill syringe by rotating the separation chamber at a fill rotation rate and pumping the blood from the fill syringe. A soft spin is used to initially separate red blood cells from platelets by spinning the separation chamber at a soft spin rate. A percentage of the blood is drawn from the separation chamber back into the fill syringe to remove separated red blood cells. A second portion of the separated blood is drawn from the separation chamber until a red blood cell/platelet interface is detected. A hard spin is performed by spinning the separation chamber at a higher rate and connecting tubing is cleared of red blood cells by drawing a predetermined clearing volume. The platelet rich plasma is then collected in the collection syringe.Type: GrantFiled: September 8, 2006Date of Patent: December 11, 2007Assignee: Medtronic, Inc.Inventors: Victor D. Dolecek, Gary L. Berg, Kenneth E. Merte, David Malcolm, Kevin D. McIntosh, Vitaly G. Sitko
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Patent number: 7252758Abstract: A centrifugal method, and corresponding system, for processing blood to collect platelet rich plasma. A separation chamber is filled with blood from a fill syringe by rotating the separation chamber at a fill rotation rate and pumping the blood from the fill syringe. A soft spin is used to initially separate red blood cells from platelets by spinning the separation chamber at a soft spin rate. A percentage of the blood is drawn from the separation chamber back into the fill syringe to remove separated red blood cells. A second portion of the separated blood is drawn from the separation chamber until a red blood cell/platelet interface is detected. A hard spin is performed by spinning the separation chamber at a higher rate and connecting tubing is cleared of red blood cells by drawing a predetermined clearing volume. The platelet rich plasma is then collected in the collection syringe.Type: GrantFiled: November 10, 2005Date of Patent: August 7, 2007Assignee: Medtronic, Inc.Inventors: Victor D. Dolecek, Gary L. Berg, Kenneth E. Merte, David Malcolm, Kevin D. McIntosh, Vitaly G. Sitko
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Patent number: 6982038Abstract: A centrifugal method, and corresponding system, for processing blood to collect platelet rich plasma. A separation chamber is filled with blood from a fill syringe by rotating the separation chamber at a fill rotation rate and pumping the blood from the fill syringe. A soft spin is used to initially separate red blood cells from platelets by spinning the separation chamber at a soft spin rate. A percentage of the blood is drawn from the separation chamber back into the fill syringe to remove separated red blood cells. A second portion of the separated blood is drawn from the separation chamber until a red blood cell/platelet interface is detected. A hard spin is performed by spinning the separation chamber at a higher rate and connecting tubing is cleared of red blood cells by drawing a predetermined clearing volume. The platelet rich plasma is then collected in the collection syringe.Type: GrantFiled: January 10, 2003Date of Patent: January 3, 2006Assignee: Medtronic, Inc.Inventors: Victor D. Dolecek, Gary L. Berg, Kenneth E. Merte, David Malcolm, Kevin D. McIntosh, Vitaly G. Sitko
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Publication number: 20030232712Abstract: A centrifugal method, and corresponding system, for processing blood to collect platelet rich plasma. A separation chamber is filled with blood from a fill syringe by rotating the separation chamber at a fill rotation rate and pumping the blood from the fill syringe. A soft spin is used to initially separate red blood cells from platelets by spinning the separation chamber at a soft spin rate. A percentage of the blood is drawn from the separation chamber back into the fill syringe to remove separated red blood cells. A second portion of the separated blood is drawn from the separation chamber until a red blood cell/platelet interface is detected. A hard spin is performed by spinning the separation chamber at a higher rate and connecting tubing is cleared of red blood cells by drawing a predetermined clearing volume. The platelet rich plasma is then collected in the collection syringe.Type: ApplicationFiled: January 10, 2003Publication date: December 18, 2003Inventors: Victor D. Dolecek, Gary L. Berg, Kenneth E. Merte, David Malcolm, Kevin D. McIntosh, Vitaly G. Sitko
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Patent number: 5344430Abstract: An implantable defibrillator provided with a plurality of defibrillation electrodes, which may be reconfigured to define a plurality of defibrillation pathways. The device is capable of measuring the impedance along a selected defibrillation pathway, during delivery of an impedance pulse, and monitoring the success or failure of the pulse to accomplish defibrillation or cardioversion. In response to a detected failure to accomplish cardioversion in conjunction with a measured change of impedance of greater than a predetermined amount, a new defibrillation pathway is selected, which may employ some or all of the electrodes employed to define the original impedance pathway. The device also includes apparatus for varying the relative amplitude of defibrillation pulses applied to individual electrodes used in sequential or simultaneous, multiple electrode pulse regimens, in order to equalize current distribution, in response to measured pathway impedances.Type: GrantFiled: April 8, 1993Date of Patent: September 6, 1994Assignee: Medtronic, Inc.Inventors: Gary L. Berg, Martin A. Rossing, David K. Peterson, Robert A. Neumann
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Patent number: 5224475Abstract: An implantable defibrillator provided with a plurality of defibrillation electrodes, which may be reconfigured to define a plurality of defibrillation pathways. The device is capable of measuring the impedance along a selected defibrillation pathway, during delivery of an impedance pulse, and monitoring the success or failure of the pulse to accomplish defibrillation or cardioversion. In response to a detected failure to accomplish cardioversion in conjunction with a measured change of impedance of greater than a predetermined amount, a new defibrillation pathway is selected, which may employ some or all of the electrodes employed to define the original impedance pathway. The device also includes apparatus for varying the relative amplitude of defibrillation pulses applied to individual electrodes used in sequential or simultaneous, multiple electrode pulse regimens, in order to equalize current distribution, in response to measured pathway impedances.Type: GrantFiled: November 20, 1991Date of Patent: July 6, 1993Assignee: Medtronic, Inc.Inventors: Gary L. Berg, Martin A. Rossing, David K. Peterson, Robert A. Neumann