Patents by Inventor Kenton R. Kaufman
Kenton R. Kaufman 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: 20170311899Abstract: Methods for operating a processing system to generate accurate information representative of movement of a body from activity sensors such as tri-axial accelerometers. The system uses wavelet analysis and/or adaptive thresholds to provide quantitative measurements of a person's posture and/or activity, including low-speed activity, during daily living.Type: ApplicationFiled: July 12, 2017Publication date: November 2, 2017Inventors: Kenton R. Kaufman, Melissa M. Morrow, Vipul A. Lugade, Emma Fortune
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Patent number: 8990041Abstract: A fall detection device may be uniquely associated with a wearer. The fall detection device may predict whether a fall event is imminent based on kinematic information of the wearer's body. The device may also confirm whether the wearer actually experienced a fall event based on additional kinematic information.Type: GrantFiled: April 27, 2010Date of Patent: March 24, 2015Assignee: Mayo Foundation for Medical Education and ResearchInventors: Mark D. Grabiner, Kenton R. Kaufman, Barry K. Gilbert
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Publication number: 20150032033Abstract: Methods for operating a processing system to generate accurate information representative of movement of a body from activity sensors such as tri-axial accelerometers. The system uses wavelet analysis and/or adaptive thresholds to provide quantitative measurements of a person's posture and/or activity, including low-speed activity, during daily living.Type: ApplicationFiled: July 23, 2014Publication date: January 29, 2015Inventors: Kenton R. Kaufman, Melissa M. Morrow, Vipul A. Lugade, Emma Fortune
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Publication number: 20120101770Abstract: A fall detection device may be uniquely associated with a wearer. The fall detection device may predict whether a fall event is imminent based on kinematic information of the wearer's body. The device may also confirm whether the wearer actually experienced a fall event based on additional kinematic information.Type: ApplicationFiled: April 27, 2010Publication date: April 26, 2012Applicants: The BOARD of TRUSTEES of the UNIVERSITY of ILLINOIS, MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCHInventors: Mark D. Grabiner, Kenton R. Kaufman, Barry K. Gilbert
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Patent number: 8029570Abstract: Permanent magnets are implanted in bone to unload compressive forces at joints using the repulsive force therebetween. A porous metal container is implanted first and becomes fixed in place by bone growth. The permanent magnet is then inserted in the container and retained in place. A magnet prescription system includes a display and input device which enables a user to alter parameters such as magnet size, strength and placement and calculate and display the repulsive force that will result.Type: GrantFiled: September 25, 2002Date of Patent: October 4, 2011Assignee: Mayo Foundation for Medical Education and ResearchInventors: Darryl E. Barnes, David G. Lewallen, Kenton R. Kaufman
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Publication number: 20110030698Abstract: A device for positioning a subject's knee during an MRI scan. The device includes foot, knee, and thigh positioning apparatuses. Each of the positioning apparatuses can be translated and/or rotated to allow correct and consistent position of the subject's knee within the MRI magnetic bore. The device includes a user control to facilitate repeat measurements of knee characteristics with reduced intra- and inter-technologist variability.Type: ApplicationFiled: August 5, 2010Publication date: February 10, 2011Inventors: Kenton R. Kaufman, Kimberly K. Amrami, Matthew F. Koff, Fredrick Schultz
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Patent number: 7827993Abstract: A magnetic levitation system for immobile patients in a wheelchair is disclosed. A magnet multi-pole configuration that is mechanically stable is provided that lifts the body and/or load shifts (rotates the body from side to side) the body. Based on a multi-pole configuration of permanent magnets in the pelvis, a corresponding multi-pole configuration for magnet repulsion is placed below the patient, typically as part of the wheelchair. Alternatively, a unipolar repulsion with mechanical patient restraint is implemented to achieve body lift or levitation. Either permanent magnets or electromagnets, optionally with magnetic sensor-mediated active computerized feedback control below the body, are sufficient to implement a complete multi-pole repulsive configuration that is mechanically stable. The apparatus reduces compressive force on soft tissues disposed between a human pelvis and a wheelchair seat.Type: GrantFiled: July 28, 2006Date of Patent: November 9, 2010Assignee: Mayo Foundation for Medical Education and ResearchInventors: Graham P. Cameron, Wayne H. Fjerstad, Barry K. Gilbert, Kenton R. Kaufman
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Publication number: 20090054818Abstract: A thoracolumbosacral and a lumbosacral orthosis with sagittal-coronal control are disclosed. The orthoses have two rigid anterior and posterior plastic shells. The anterior shell extends from the pelvis to the sternum. The posterior shell extends from the pelvis and terminates just inferior to the scapular spine. An interior surface of the anterior shell has pressure pads that apply pressure to locations on the patient's anterior torso and the interior surface of the posterior shell has pressure pads that apply pressure to locations on the patient's posterior torso when the anterior shell and the posterior shell are secured to the patient's torso. The pressure pads may be inflatable air bladders.Type: ApplicationFiled: June 9, 2005Publication date: February 26, 2009Applicant: MAYO FOUNDATION FOR MEDICAL EDUCATION AND RESEARCHInventors: Kenton R. Kaufman, Michael J. Yaszemski
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Publication number: 20080281144Abstract: A magnetic levitation system for immobile patients in a wheelchair is disclosed. A magnet multi-pole configuration that is mechanically stable is provided that lifts the body and/or load shifts (rotates the body from side to side) the body. Based on a multi-pole configuration of permanent magnets in the pelvis, a corresponding multi-pole configuration for magnet repulsion is placed below the patient, typically as part of the wheelchair. Alternatively, a unipolar repulsion with mechanical patient restraint is implemented to achieve body lift or levitation. Either permanent magnets or electromagnets, optionally with magnetic sensor-mediated active computerized feedback control below the body, are sufficient to implement a complete multi-pole repulsive configuration that is mechanically stable. The apparatus reduces compressive force on soft tissues disposed between a human pelvis and a wheelchair seat.Type: ApplicationFiled: July 28, 2006Publication date: November 13, 2008Inventors: Graham P. Cameron, Wayne H. Fjerstad, Barry K. Gilbert, Kenton R. Kaufman
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Publication number: 20080262320Abstract: A system for monitoring a physical parameter of a subject includes a sensor, a transmitter, a repeater, and a base station. The sensor is located within the body of the subject and is operable to sense a physical parameter of the subject. The transmitter is electrically connected to the sensor, and is operable to transmit a spread spectrum encoded signal using a digital spreading code, the encoded signal carrying information indicative of the sensed physical parameter and being transmitted to a local region outside the body. The repeater is located in the local region, is movable with the subject, and is operable to receive the transmitted encoded signal and retransmit it to a remote region outside the body. The base station is located in the remote region and is operable to receive and decode the retransmitted encoded signal.Type: ApplicationFiled: June 28, 2006Publication date: October 23, 2008Inventors: Timothy M. Schaefer, Daivd R. Holmes, Jonathan D. Coker, Edward B. Welch, Barry K. Gilbert, Kenton R. Kaufman
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Patent number: 6834752Abstract: A clutch including an output hub on an output frame, an input shaft on an input frame, wherein the input shaft rotates within a bore in the output hub. An input hub is attached on an end of the input shaft, and a spring engages the input hub and the output hub. A locking spring clamp attaches the spring to the input hub. The input frame and the output frame are adjacent to one another on a side of the clutch opposite the input hub. An electronic control system for the clutch is also described that makes possible the use of the apparatus for electromechanical joint control in an orthotic or prosthetic device.Type: GrantFiled: November 6, 2002Date of Patent: December 28, 2004Assignee: Mayo Foundation for Medical Education and ResearchInventors: Steven E. Irby, Kenton R. Kaufman
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Publication number: 20040059423Abstract: Permanent magnets are implanted in bone to unload compressive forces at joints using the repulsive force therebetween. A porous metal container is implanted first and becomes fixed in place by bone growth. The permanent magnet is then inserted in the container and retained in place. A magnet prescription system includes a display and input device which enables a user to alter parameters such as magnet size, strength and placement and calculate and display the repulsive force that will result.Type: ApplicationFiled: September 25, 2002Publication date: March 25, 2004Inventors: Darryl E. Barnes, David G. Lewallen, Kenton R. Kaufman
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Publication number: 20030062241Abstract: A clutch including an output hub on an output frame, an input shaft on an input frame, wherein the input shaft rotates within a bore in the output hub. An input hub is attached on an end of the input shaft, and a spring engages the input hub and the output hub. A locking spring clamp attaches the spring to the input hub. The input frame and the output frame are adjacent to one another on a side of the clutch opposite the input hub. An electronic control system for the clutch is also described that makes possible the use of the apparatus for electromechanical joint control in an orthotic or prosthetic device.Type: ApplicationFiled: November 6, 2002Publication date: April 3, 2003Applicant: Mayo Foundation for Medical Education and Research, a Minnesota corporationInventors: Steven E. Irby, Kenton R. Kaufman
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Patent number: 6500138Abstract: A clutch including an output hub on an output frame, an input shaft on an input frame, wherein the input shaft rotates within a bore in the output hub. An input hub is attached on an end of the input shaft, and a spring engages the input hub and the output hub. A locking spring clamp attaches the spring to the input hub. The input frame and the output frame are adjacent to one another on a side of the clutch opposite the input hub. An electronic control system for the clutch is also described that makes possible the use of the apparatus for electromechanical joint control in an orthotic or prosthetic device.Type: GrantFiled: April 7, 2000Date of Patent: December 31, 2002Assignee: Mayo Foundation for Medical Education and ResearchInventors: Steven E. Irby, Kenton R. Kaufman
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Publication number: 20020183597Abstract: A body implantable sensor for sensing pressure in an environment within internal body tissue is described. In an implementation, the sensor includes a housing, an optical waveguide and a diaphragm with a reflective surface that faces a waveguide distal end and that reflects at least a portion of the signals exiting the waveguide distal end back into the waveguide. The diaphragm is movable relative to the waveguide end. The distance between the waveguide distal end and the diaphragm reflective surface is determined by pressure forces acting on a sensing surface of the diaphragm that is opposite the reflective surface. A cover surrounds the diaphragm and protects it from impingement, but leaves the diaphragm sensing surface exposed to pressure forces. In some implementations, an attachment mechanism stabilizes the sensor when implanted in the bodily tissue.Type: ApplicationFiled: April 25, 2002Publication date: December 5, 2002Inventors: Kenton R. Kaufman, Thomas Wavering