Patents by Inventor Aman Mahajan
Aman Mahajan 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: 20240008753Abstract: Devices and methods for multi-parameter hemodynamic monitoring are provided. Determining a cardiac output of a patient using a cuff device includes measuring a cuff pressure waveform of a subject during inflation and/or deflation of the cuff device, computing systolic and diastolic blood pressure from the cuff pressure waveform using the cuff device, constructing a blood pressure waveform from the systolic and diastolic blood pressure and cuff pressure waveform using the cuff device, computing brachial artery compliance from the cuff pressure waveform, and computing the cardiac output from the blood pressure waveform and/or brachial artery compliance using the cuff device.Type: ApplicationFiled: July 7, 2023Publication date: January 11, 2024Applicants: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, UNIVERSITY OF MARYLANDInventors: Ramakrishna MUKKAMALA, Sanjeev Govinddas SHROFF, Michael R. PINSKY, Aman MAHAJAN, Kathirvel SUBRAMANIAM, Vishaal DHAMOTHARAN, Jin-Oh HAHN
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Publication number: 20240000326Abstract: Devices and methods for determining blood pressures are provided. In one example, a device for determining blood pressure of a subject includes a camera configured to measure a finger photo-plethysmography (PPG) waveform, an accelerometer configured to measure a vertical height of the device relative to a heart of a subject, an output device configured to guide the subject to raise a hand to vary the transmural pressure of an artery while maintaining a finger pressure on the camera, and a processor configured to compute pulse pressure of the subject from the finger PPG waveform and the vertical height, and display the pulse pressure on the screen.Type: ApplicationFiled: July 7, 2023Publication date: January 4, 2024Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Aman MAHAJAN, Ramakrishna MUKKAMALA, Feng XIONG, Mark A. FREITHALER, Sanjeev Govinddas SHROFF, Vishaal DHAMOTHARAN, Anand CHANDRASEKHAR
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Publication number: 20230329563Abstract: A non-invasive, passive, and fully automated heart-sound-based system and method that provides estimates for blood velocity, tissue motion, and cardiac chamber size parameters for cardiac assessment is provided. The system uses a computer processor and software to receive PCG acoustic signals from one or more sensors and simultaneously receive electrocardiogram (ECG) signals from one or more sensors that are attached to a patient. The phonocardiogram (PCG) processing system and methods compute proxy metrics for echocardiographic parameters of cardiac tissue motion and valvular blood flow for evaluation.Type: ApplicationFiled: April 14, 2023Publication date: October 19, 2023Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, SENSYDIA CORPORATIONInventors: Kanav Saraf, Per Henrik Borgstrom, Christopher Inhwan Baek, Michael Wasko, Yi Zheng, Xu Zhang, William J. Kaiser, Aman Mahajan
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Publication number: 20220304631Abstract: Systems and methods are provided for the non-invasive computation of Pulmonary Artery Pressure (and its components of mean, systolic and diastolic) (PAP) as well as Pulmonary Capillary Wedge Pressure (and its components of mean, A-Wave and V-Wave) (PCWP) using a wearable sensor device. Cardiac acoustic and electrocardiogram sensor signals are obtained and multiple temporal, amplitude-based, and spectral features are extracted from the signals. Extracted features from a subject are used as inputs for pre-trained classification, regression, or advanced machine learning models to provide an accurate computation of PAP and PCWP and their associated component values without surgery.Type: ApplicationFiled: March 29, 2021Publication date: September 29, 2022Applicants: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, SENSYDIA CORPORATIONInventors: William J. Kaiser, Christopher Baek, Per Henrik Borgstrom, Aman Mahajan, Kanav Saraf, Michael Wasko, Xu Zhang, Yi Zheng
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Patent number: 11234601Abstract: An Integrated CardioRespiratory (ICR) System is provided for continuous Ejection Fraction (EF) measurement using a wearable device comprising a plurality of acoustic sensors. The ICR system performs signal processing computations to characterize cardiac acoustic signals that are generated by cardiac hemodynamic flow, cardiac valve, and tissue motion, and may use advanced machine learning methods to provide accurate computation of EF.Type: GrantFiled: August 10, 2018Date of Patent: February 1, 2022Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: William Kaiser, Nils Peter Borgstrom, Per Henrik Borgstrom, Aman Mahajan
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Patent number: 11197616Abstract: An integrated cardio-respiratory system that fuses continuously recorded data from multiple physiological sensor sources to acquire signals representative of acoustic events caused by physiological phenomena occurring in the cardiac and/or arterial structures underneath particular areas of the chest and/or neck to monitor cardiac and respiratory conditions.Type: GrantFiled: November 14, 2016Date of Patent: December 14, 2021Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Aman Mahajan, William J. Kaiser
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Patent number: 10959629Abstract: An Integrated CardioRespiratory (ICR) System is provided for continuous Stroke Volume (SV) measurement using a wearable device comprising a plurality of acoustic sensors. The ICR system performs signal processing computations to characterize cardiac acoustic signals that are generated by cardiac hemodynamic flow, cardiac valve, and tissue motion, and may use advanced machine learning methods to provide accurate computation of SV.Type: GrantFiled: August 13, 2018Date of Patent: March 30, 2021Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: William Kaiser, Nils Peter Borgstrom, Per Henrik Borgstrom, Aman Mahajan
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Publication number: 20200188621Abstract: The present invention provides improved dual lumen endobronchial tube devices. The dual lumen endobronchial tube devices feature a universal design for left or right mainstem bronchus insertion. The dual lumen endobronchial tube devices also feature enhanced balloon cuff designs to minimize dislodgement while maintaining proper airway sealing. The present invention also includes water activated lubricious coating inside the shaft to reduce friction during insertion of a bronchoscope into the airway. The present invention also provides improved double clamps that prevent the accidental clamping of both tubes of a Y-adapter.Type: ApplicationFiled: February 21, 2020Publication date: June 18, 2020Inventors: Nir Hoftman, Aman Mahajan, Mike Hoftman
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Patent number: 10598652Abstract: Disclosed herein are methods of using serum nitric oxide levels to diagnose subjects as having or likely to develop a post-operative complication.Type: GrantFiled: April 8, 2016Date of Patent: March 24, 2020Assignee: The Regents of the University of CaliforniaInventors: Hua Cai, Kimberly Howard-Quijano, Aman Mahajan, Ji Youn Youn
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Patent number: 10569038Abstract: The present invention provides improved dual lumen endobronchial tube devices. The dual lumen endobronchial tube devices feature a universal design for left or right mainstem bronchus insertion. The dual lumen endobronchial tube devices also feature enhanced balloon cuff designs to minimize dislodgement while maintaining proper airway sealing. The present invention also includes water activated lubricious coating inside the shaft to reduce friction during insertion of a bronchoscope into the airway. The present invention also provides improved double clamps that prevent the accidental clamping of both tubes of a Y-adapter.Type: GrantFiled: November 1, 2016Date of Patent: February 25, 2020Assignee: The Regents of the University of CaliforniaInventors: Nir Hoftman, Aman Mahajan, Mike Hoftman
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Publication number: 20190059748Abstract: An Integrated CardioRespiratory (ICR) System is provided for continuous Ejection Fraction (EF) measurement using a wearable device comprising a plurality of acoustic sensors. The ICR system performs signal processing computations to characterize cardiac acoustic signals that are generated by cardiac hemodynamic flow, cardiac valve, and tissue motion, and may use advanced machine learning methods to provide accurate computation of EF.Type: ApplicationFiled: August 10, 2018Publication date: February 28, 2019Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: William Kaiser, Nils Peter Borgstrom, Per Henrik Borgstrom, Aman Mahajan
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Publication number: 20190059747Abstract: An Integrated CardioRespiratory (ICR) System is provided for continuous Stroke Volume (SV) measurement using a wearable device comprising a plurality of acoustic sensors. The ICR system performs signal processing computations to characterize cardiac acoustic signals that are generated by cardiac hemodynamic flow, cardiac valve, and tissue motion, and may use advanced machine learning methods to provide accurate computation of SV.Type: ApplicationFiled: August 13, 2018Publication date: February 28, 2019Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: William Kaiser, Nils Peter Borgstrom, Per Henrik Borgstrom, Aman Mahajan
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Publication number: 20180113112Abstract: Disclosed herein are methods of using serum nitric oxide levels to diagnose subjects as having or likely to develop a post-operative complication.Type: ApplicationFiled: April 8, 2016Publication date: April 26, 2018Inventors: Hua Cai, Kimberly Howard-Quijano, Aman Mahajan, Ji Youn Youn
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Patent number: 9744323Abstract: A lung isolation system configured for selective isolation and ventilation of the lung in conjunction with a standard endotracheal tube. The system includes an expandable bronchial isolation tube comprising a collapsible nitinol frame, a bifurcated adapter, and a steerable optical stylet.Type: GrantFiled: December 4, 2014Date of Patent: August 29, 2017Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Nir N. Hoftman, Aman Mahajan
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Patent number: 9737910Abstract: An eccentric assembly for a compaction machine comprises an outer eccentric member that is longitudinally elongated cylinder shaped and has a partial longitudinal opening through the length; an inner eccentric member that is longitudinally elongated cylinder shaped and has a partial longitudinal opening through the length and rotatably connected inside of said outer eccentric member so that the inner eccentric member can rotate with respect to the outer eccentric member around the same axis of rotation.Type: GrantFiled: February 10, 2014Date of Patent: August 22, 2017Assignee: VOLVO CONSTRUCTION EQUIPMENT ABInventors: Howard Smith, Edward Magalski, Petar Milkovic, Aman Mahajan
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Patent number: 9687621Abstract: The present invention is a dual lumen endobronchial tube provided with a flexible wall dividing a cylindrical main tube into two lumens, where the outside wall of the main tube is reinforced, preferably by metal wire but alternately by a sufficiently rigid polymer ribbing which will achieve a desired reduction necessary outside wall thickness. The achievement of a reduction in necessary wall thickness enables sufficient hydraulic cross sectional area so that each lumen is capable independently of providing adequate ventilation to a patient even while a ventilation lumen is partly occluded when the insertion end of a bronchoscope or tube is inserted into the adjacent lumen to examine or treat the other lung.Type: GrantFiled: March 14, 2013Date of Patent: June 27, 2017Assignee: The Regents of the University of CaliforniaInventors: Nir Hoftman, Aman Mahajan, Mike Hoftman
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Publication number: 20170119255Abstract: An integrated cardio-respiratory system that fuses continuously recorded data from multiple physiological sensor sources to acquire signals representative of acoustic events caused by physiological phenomena occurring in the cardiac and/or arterial structures underneath particular areas of the chest and/or neck to monitor cardiac and respiratory conditions.Type: ApplicationFiled: November 14, 2016Publication date: May 4, 2017Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Aman Mahajan, William J. Kaiser
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Publication number: 20170072154Abstract: The present invention is a dual lumen endobronchial tube provided with a flexible wall dividing a cylindrical main tube into two lumens, where the outside wall of the main tube is reinforced, preferably by metal wire but alternately by a sufficiently rigid polymer ribbing which will achieve a desired reduction necessary outside wall thickness. The achievement of a reduction in necessary wall thickness enables sufficient hydraulic cross sectional area so that each lumen is capable independently of providing adequate ventilation to a patient even while a ventilation lumen is partly occluded when the insertion end of a bronchoscope or tube is inserted into the adjacent lumen to examine or treat the other lung.Type: ApplicationFiled: March 14, 2013Publication date: March 16, 2017Inventors: Nir Hoftman, Aman Mahajan, Mike Hoftman
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Publication number: 20170043111Abstract: The present invention provides improved dual lumen endobronchial tube devices. The dual lumen endobronchial tube devices feature a universal design for left or right mainstem bronchus insertion. The dual lumen endobronchial tube devices also feature enhanced balloon cuff designs to minimize dislodgement while maintaining proper airway sealing. The present invention also includes water activated lubricious coating inside the shaft to reduce friction during insertion of a bronchoscope into the airway. The present invention also provides improved double clamps that prevent the accidental clamping of both tubes of a Y-adapter.Type: ApplicationFiled: November 1, 2016Publication date: February 16, 2017Inventors: Nir Hoftman, Aman Mahajan, Mike Hoftman
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Publication number: 20170014867Abstract: The present disclosure presents an eccentric assembly for a compaction machine comprising: an outer eccentric member that is longitudinally elongated cylinder shaped and has a partial longitudinal opening through the length; an inner eccentric member that is longitudinally elongated cylinder shaped and has a partial longitudinal opening through the length and rotatably connected inside of said outer eccentric member so that the inner eccentric member can rotate with respect to the outer eccentric member around the same axis of rotation.Type: ApplicationFiled: February 10, 2014Publication date: January 19, 2017Applicant: VOLVO CONSTRUCTION EQUIPMENT ABInventors: Howard Smith, Edward Magalski, Petar Milkovic, Aman Mahajan