Patents by Inventor Wayne I. Sternberger
Wayne I. Sternberger 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: 11324430Abstract: Example apparatuses, systems, and methods for detecting a muscle tissue ischemia event are provided. An example apparatus may include an electromyography (EMG) sensor applied to a patient to detect electrical activity in the muscle tissue. The apparatus may also include processing circuitry in communication with the EMG sensor and configured to receive EMG signals from the EMG sensor and detect characteristics within the EMG signals indicating oxygen depletion within the muscle tissue of the patient. The characteristics may include a signal power level of the EMG signals increasing by at least a threshold value at a select frequency or with respect to a select band of frequencies. The processing circuitry may be further configured to trigger an output, in response to detecting the characteristics, indicating that the oxygen depletion in the muscle tissue is indicative of an ischemia event.Type: GrantFiled: November 14, 2018Date of Patent: May 10, 2022Assignee: The Johns Hopkins UniversityInventor: Wayne I. Sternberger
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Publication number: 20190216354Abstract: Example apparatuses, systems, and methods for detecting a muscle tissue ischemia event are provided. An example apparatus may include an electromyography (EMG) sensor applied to the patient to detect electrical activity in the muscle tissue. The apparatus may also include processing circuitry in communication with the EMG sensor and configured to receive EMG signals from the EMG sensor and detect characteristics within the EMG signals indicating oxygen depletion within the muscle tissue of the patient. The characteristics may include a signal power level of the EMG signals increasing by at least a threshold value at a select frequency or with respect to a select band of frequencies. The processing circuitry may be further configured to trigger an output, in response to detecting the characteristics, indicating that the oxygen depletion in the muscle tissue is indicative of an ischemia event.Type: ApplicationFiled: November 14, 2018Publication date: July 18, 2019Inventor: Wayne I. Sternberger
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Patent number: 9993631Abstract: A ventriculoperitoneal shunt includes a proximal catheter, a distal catheter, a shunt valve operably coupling the proximal catheter to the distal catheter, and a contrast container containing contrast material configured to change acoustic impedance proportionally to a change in pressure applied to the contrast container.Type: GrantFiled: September 16, 2015Date of Patent: June 12, 2018Assignee: The Johns Hopkins UniversityInventors: George L. Coles, Jr., Sybil Klaus, Eric Jackson, Philippe M. Burlina, Richard S. Potember, Wayne I. Sternberger, John H. Benson, Benjamin Elder
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Patent number: 9888869Abstract: An apparatus for neural block determination is provided including processing circuitry configured to receive muscle movement measurements, analyze the muscle movement measurements in a frequency domain, and determine an effectiveness of an anesthetic based on the analysis of the muscle movement measurements in the frequency domain.Type: GrantFiled: November 19, 2015Date of Patent: February 13, 2018Assignee: The Johns Hopkins UniversityInventors: Wayne I. Sternberger, Robert S. Greenberg
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Publication number: 20160157753Abstract: An apparatus for neural block determination is provided including processing circuitry configured to receive muscle movement measurements, analyze the muscle movement measurements in a frequency domain, and determine an effectiveness of an anesthetic based on the analysis of the muscle movement measurements in the frequency domain.Type: ApplicationFiled: November 19, 2015Publication date: June 9, 2016Inventor: Wayne I. Sternberger
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Publication number: 20160074638Abstract: A ventriculoperitoneal shunt includes a proximal catheter, a distal catheter, a shunt valve operably coupling the proximal catheter to the distal catheter, and a contrast container containing contrast material configured to change acoustic impedance proportionally to a change in pressure applied to the contrast container.Type: ApplicationFiled: September 16, 2015Publication date: March 17, 2016Inventors: George L. Coles, JR., Sybil Klaus, Eric Jackson, Philippe M. Burlina, Richard S. Potember, Wayne I. Sternberger, John H. Benson, Benjamin Elder
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Patent number: 7869863Abstract: The present invention provides a method and apparatus for monitoring the fetal condition in an objective, quantitative, and non-invasive manner by enabling continuous and highly specific data collection during pre-natal development and the intra-partum period. In an embodiment, monitoring the fetal condition comprises monitoring a fetal heart rate, a fetal heart rate variability, and/or the fetal heart vector orientation of a fetus in a pregnant mother. Automated signal processing techniques are applied to a multiplicity of transducers to select an optimum signal vector to monitor at least one of a fetal heart rate, a fetal heart rate variability, and/or the fetal heart vector orientation of a fetus in a pregnant mother.Type: GrantFiled: January 10, 2008Date of Patent: January 11, 2011Assignee: The Johns Hopkins UniversityInventors: Edward J. Moses, John A. Cristion, Susanne M. Daniels, Wayne I. Sternberger, Timothy P. Magnani
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Publication number: 20090182242Abstract: The present invention provides a method and apparatus for monitoring the fetal condition in an objective, quantitative, and non-invasive manner by enabling continuous and highly specific data collection during pre-natal development and the intra-partum period. In an embodiment, monitoring the fetal condition comprises monitoring a fetal heart rate, a fetal heart rate variability, and/or the fetal heart vector orientation of a fetus in a pregnant mother. Automated signal processing techniques are applied to a multiplicity of transducers to select an optimum signal vector to monitor at least one of a fetal heart rate, a fetal heart rate variability, and/or the fetal heart vector orientation of a fetus in a pregnant mother.Type: ApplicationFiled: January 10, 2008Publication date: July 16, 2009Inventors: Edward J. Moses, John A. Cristion, Susanne M. Daniels, Wayne I. Sternberger, Timothy P. Magnani
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Patent number: 6957592Abstract: The invention comprises a vessel for solid phase micro-extraction chemical sampling. The vessel includes a container having an open end and a cap used to close the open end. The cap has a holder to hold a solid phase coated fiber within an interior of the container. There also is an inlet at a first location of the vessel and an outlet at a second location of the vessel. The inlet and the outlet are adapted to fill the vessel with a material to be exposed to the solid phase coated fiber. The vessel also includes a diffuser plate attached to the container. The plate is adapted to reduce fluid forces exerted on the solid phase coated fiber as material flows from the inlet to the outlet. The purpose of the diffuser plate is both to assure that forces are reduced and to provide laminar flow to assure rapid and complete exchange of the fluid in the vessel.Type: GrantFiled: April 21, 2003Date of Patent: October 25, 2005Assignee: The Johns Hopkins UniversityInventors: Wayne I. Sternberger, Stuart A. Goemmer, Rebecca F. Vertes, Micah A. Carlson, William R. Allmon, Alexander E. Dence, Stanley G. Reach, Adam K. Arabian
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Patent number: 6751498Abstract: An apparatus and method for fetal heart and maternal heart and uterine monitoring is provided which acquire biopotential waveforms indicative of the mother's heart beat from sensors located at or near the mother's chest, and waveforms indicative of the combined maternal and fetal heart beats from abdominal sensors located on the mother's abdomen, lower back, or both. The signals from the abdominal sensors are divided into a plurality of channels. An adaptive signal processing filter (ASPF) algorithm or other suitable algorithm is then used to cancel the estimated maternal waveform from each channel derived from the abdominal sensors. The system then selects from the resulting waveforms at least one waveform to serve as the reference fetal waveform. The reference waveform is then processed against the other abdominal waveforms preferably using the ASPF algorithm again to form an enhanced fetal signal that is a representation of the fetus's biopotential electrocardiogram (EKGf).Type: GrantFiled: March 10, 2000Date of Patent: June 15, 2004Assignee: The Johns Hopkins UniversityInventors: Robert S. Greenberg, John A. Christion, Edward J. Moses, Wayne I. Sternberger
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Publication number: 20040037747Abstract: The invention comprises a vessel for solid phase micro-extraction chemical sampling. The vessel includes a container having an open end and a cap used to close the open end. The cap has a holder to hold a solid phase coated fiber within an interior of the container. There also is an inlet at a first location of the vessel and an outlet at a second location of the vessel. The inlet and the outlet are adapted to fill the vessel with a material to be exposed to the solid phase coated fiber. The vessel also includes a diffuser plate attached to the container. The plate is adapted to reduce fluid forces exerted on the solid phase coated fiber as material flows from the inlet to the outlet. The purpose of the diffuser plate is both to assure that forces are reduced and to provide laminar flow to assure rapid and complete exchange of the fluid in the vessel.Type: ApplicationFiled: April 21, 2003Publication date: February 26, 2004Inventors: Wayne I. Sternberger, Stuart A. Goemmer, Rebecca F. Vertes, Micah A. Carlson, William R. Allmon, Alexander E. Dence, Stanley G. Reach
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Patent number: 6002960Abstract: Electromyogram, temperature and heart rate measurements, which correlate to the dermatomal level and density of neural blockade, are obtained in a passive manner, i.e., the patient is not stimulated or exposed to any sensor that requires an active conduction in order to make a measurement and no active patient participation or response is required. The measurements obtained provide objective and quantitative indications of, for example, epidural blockade with local anesthetics, thus, allowing objective real-time assessment of density and level of neural blockade.Type: GrantFiled: August 26, 1997Date of Patent: December 14, 1999Assignee: The Johns Hopkins UniversityInventors: Wayne I. Sternberger, Robert S. Greenberg
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Patent number: 4788656Abstract: The invention relates to an apparatus for interfacing between a peripheral device and a host processor. The invented cache memory and pre-processor operates in either an acquisition mode, where it appears to be a memory dedicated to the peripheral, or in a retrieval mode, where it appears to be a memory dedicated to the host microprocessor. For example, the cache memory can be reconfigured from a 2K byte by 16-bit space during the acquisition mode to a 4K byte .times.8-bit space during the retrieval mode, wherein the high and low bytes of the previously defined 16-bit words are interleaved.Type: GrantFiled: May 25, 1984Date of Patent: November 29, 1988Assignee: The Johns Hopkins UniversityInventor: Wayne I. Sternberger
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Patent number: 4186397Abstract: A short range, precision navigation and tracking system and method therefor are disclosed. The navigation and tracking system utilizes a master-repeater configuration with a phase lock loop controlling the modulation frequency of the master FM transmitter.Type: GrantFiled: September 6, 1977Date of Patent: January 29, 1980Assignee: Board of Regents for Education of the State of Rhode IslandInventors: Wayne I. Sternberger, Lester R. LeBlanc