Patents by Inventor Andrew M. Siegel
Andrew M. Siegel 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: 20230089871Abstract: A conventional flow tube for a metabolic cart is usually a straight length of pipe whose inner diameter is fixed by the respiratory burden imposed by the flow tube on the user, with a smaller diameter imposing a higher respiratory burden. The ratio of the straight flow tube's length to diameter is fixed by fluid dynamics, so increasing the flow tube's diameter causes the flow tube's length to increase. As the flow tube gets longer, it exerts more torque on the user's neck and jaw, creating discomfort. Reducing the flow tube's length causes an undesired increase in the respiratory burden but increasing the flow tube's diameter to reduce the respiratory burden makes the flow tube less comfortable, making the flow tube unconformable, hard to breathe through, or both. Bending the flow tube makes it possible to increase the flow tube's propagation length without increasing the flow tube's lever arm length.Type: ApplicationFiled: August 11, 2022Publication date: March 23, 2023Applicant: Massachusetts Institute of TechnologyInventors: Holly MCCLUNG, Reed Wasson HOYT, Lawrence M. Candell, Joseph M. MAHAN, Gary A. Shaw, Andrew M Siegel, Robert Linton STANDLEY, Kyle THOMPSON
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Patent number: 11464426Abstract: A conventional flow tube for a metabolic cart is usually a straight length of pipe whose inner diameter is fixed by the respiratory burden imposed by the flow tube on the user, with a smaller diameter imposing a higher respiratory burden. The ratio of the straight flow tube's length to diameter is fixed by fluid dynamics, so increasing the flow tube's diameter causes the flow tube's length to increase. As the flow tube gets longer, it exerts more torque on the user's neck and jaw, creating discomfort. Reducing the flow tube's length causes an undesired increase in the respiratory burden but increasing the flow tube's diameter to reduce the respiratory burden makes the flow tube less comfortable, making the flow tube unconformable, hard to breathe through, or both. Bending the flow tube, e.g., in an L shape, makes it possible to increase the flow tube's propagation length without increasing the flow tube's lever arm length.Type: GrantFiled: May 16, 2019Date of Patent: October 11, 2022Assignee: Massachusetts Institute of TechnologyInventors: Holly McClung, Reed Wasson Hoyt, Lawrence M Candell, Joseph M. Mahan, Gary A Shaw, Andrew M Siegel, Robert Linton Standley, Kyle Thompson
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Publication number: 20220160257Abstract: A fluid dynamic valve passively allows fluid flow out of a moving stream in one flow direction and not in the reverse. This allows the collection of fluid from a single direction of an AC fluid flow. The siphoned portion of the flow has a flow rate proportional to the mainstream flow. This device can collect exhaled breath or selective entrenchment during inhale. In one orientation, it can meter aerosolized particles into an inhale breath stream for pulmonary delivery, without complicated breath timing or drug loss due to drug adsorption to the back of the throat. Alternatively, a user can breathe through the device and a proportional amount, relative to the volumetric flow rate, of each exhale can flow into an auxiliary chamber for analysis. In addition, the device has a low respiratory burden and is comfortable to use.Type: ApplicationFiled: November 29, 2021Publication date: May 26, 2022Applicant: Massachusetts Institute of TechnologyInventors: Kyle THOMPSON, Gary A. SHAW, Andrew M. SIEGEL, Lawrence M. CANDELL
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Patent number: 11259717Abstract: A fluid dynamic valve passively allows fluid flow out of a moving stream in one flow direction and not in the reverse. This allows the collection of fluid from a single direction of an AC fluid flow. The siphoned portion of the flow has a flow rate proportional to the mainstream flow. This device can collect exhaled breath or selective entrenchment during inhale. In one orientation, it can meter aerosolized particles into an inhale breath stream for pulmonary delivery, without complicated breath timing or drug loss due to drug adsorption to the back of the throat. Alternatively, a user can breathe through the device and a proportional amount, relative to the volumetric flow rate, of each exhale can flow into an auxiliary chamber for analysis. In addition, the device has a low respiratory burden and is comfortable to use.Type: GrantFiled: May 16, 2019Date of Patent: March 1, 2022Assignee: Massachusetts Institute of TechnologyInventors: Kyle Thompson, Gary A Shaw, Andrew M Siegel, Lawrence M Candell
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Publication number: 20210307642Abstract: Systems, apparatus, and methods related to modeling, monitoring, and/or managing metabolism of a subject include measuring a respiratory quotient (RQ) level in a subject and/or optimizing and executing a nonlinear feedback model to model energy substrate utilization in the subject based on at least one of a macronutrient composition and caloric value of food consumed by the subject, an intensity and duration of activity by the subject, a rate and maximum capacity of glycogen storage in the subject, a rate and maximum capacity of de novo lipogenesis in the subject, a quality and duration of sleep by the subject, and/or an RQ level in the subject.Type: ApplicationFiled: January 7, 2021Publication date: October 7, 2021Inventors: Lawrence M. Candell, Christopher Ferraiolo, Gary A. Shaw, Andrew M. Siegel, George Zogbi
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Patent number: 10925513Abstract: Systems, apparatus, and methods related to modeling, monitoring, and/or managing metabolism of a subject include measuring a respiratory quotient (RQ) level in a subject and/or optimizing and executing a nonlinear feedback model to model energy substrate utilization in the subject based on at least one of a macronutrient composition and caloric value of food consumed by the subject, an intensity and duration of activity by the subject, a rate and maximum capacity of glycogen storage in the subject, a rate and maximum capacity of de novo lipogenesis in the subject, a quality and duration of sleep by the subject, and/or an RQ level in the subject.Type: GrantFiled: July 27, 2016Date of Patent: February 23, 2021Assignee: Massachusetts Institute of TechnologyInventors: Lawrence M. Candell, Christopher Ferraiolo, Gary A. Shaw, Andrew M. Siegel, George Zogbi
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Patent number: 10638956Abstract: Systems, apparatus, and methods related to modeling, monitoring, and/or managing metabolism of a subject include measuring a respiratory quotient (RQ) level in a subject and/or optimizing and executing a nonlinear feedback model to model energy substrate utilization in the subject based on at least one of a macronutrient composition and caloric value of food consumed by the subject, an intensity and duration of activity by the subject, a rate and maximum capacity of glycogen storage in the subject, a rate and maximum capacity of de novo lipogenesis in the subject, a quality and duration of sleep by the subject, and/or an RQ level in the subject.Type: GrantFiled: December 7, 2017Date of Patent: May 5, 2020Assignee: Massachusetts Institute of TechnologyInventors: Lawrence M. Candell, Christopher Ferraiolo, Gary A. Shaw, Andrew M. Siegel, George Zogbi, Holly Lehmann McClung, Reed Wasson Hoyt, Kyle Thompson
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Patent number: 10598914Abstract: System and method configured to operate under conditions when the object being imaged destroys or negates the information which otherwise allows the user to take advantage of optical parallax, configured to elicit luminescence from the same targets in the object as a result of irradiation of these targets with pump light at different, respectively corresponding wavelengths, and acquire optical data from so-illuminated targets through the very same optical path to image the object at different wavelengths. One embodiment enables acquisition, by the same optical detector and from the same object, of imaging data that includes a reflectance image and multiple fluorescence-based images caused by light at different wavelengths, to assess difference in depths of locations of targets within the object.Type: GrantFiled: July 13, 2016Date of Patent: March 24, 2020Assignee: Massachusetts Institute of TechnologyInventors: Andrew M. Siegel, Nandini Rajan, Angela M. Belcher, Neelkanth M. Bardhan
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Publication number: 20200022618Abstract: A conventional flow tube for a metabolic cart is usually a straight length of pipe whose inner diameter is fixed by the respiratory burden imposed by the flow tube on the user, with a smaller diameter imposing a higher respiratory burden. The ratio of the straight flow tube's length to diameter is fixed by fluid dynamics, so increasing the flow tube's diameter causes the flow tube's length to increase. As the flow tube gets longer, it exerts more torque on the user's neck and jaw, creating discomfort. Reducing the flow tube's length causes an undesired increase in the respiratory burden but increasing the flow tube's diameter to reduce the respiratory burden makes the flow tube less comfortable, making the flow tube unconformable, hard to breathe through, or both. Bending the flow tube, e.g., in an L shape, makes it possible to increase the flow tube's propagation length without increasing the flow tube's lever arm length.Type: ApplicationFiled: May 16, 2019Publication date: January 23, 2020Inventors: Holly MCCLUNG, Reed Wasson HOYT, Lawrence M Candell, Joseph M. MAHAN, Gary A Shaw, Andrew M Siegel, Robert Linton STANDLEY, Kyle THOMPSON
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Publication number: 20200022617Abstract: A fluid dynamic valve passively allows fluid flow out of a moving stream in one flow direction and not in the reverse. This allows the collection of fluid from a single direction of an AC fluid flow. The siphoned portion of the flow has a flow rate proportional to the mainstream flow. This device can collect exhaled breath or selective entrenchment during inhale. In one orientation, it can meter aerosolized particles into an inhale breath stream for pulmonary delivery, without complicated breath timing or possible large scale drug loss due to drug adsorption to the back of the throat. Alternatively, a user can breathe through the device and a proportional amount, relative to the volumetric flow rate, of each exhale can flow into an auxiliary chamber for analysis. In this arrangement, the fluid dynamic valve replaces the mechanical pump in a metabolic measurement apparatus. It collects a proportional volume of the exhale and none of the inhale for mixing-chamber breath analysis.Type: ApplicationFiled: May 16, 2019Publication date: January 23, 2020Inventors: Kyle THOMPSON, Gary A Shaw, Andrew M Siegel, Lawrence M Candell
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Publication number: 20180125391Abstract: Systems, apparatus, and methods related to modeling, monitoring, and/or managing metabolism of a subject include measuring a respiratory quotient (RQ) level in a subject and/or optimizing and executing a nonlinear feedback model to model energy substrate utilization in the subject based on at least one of a macronutrient composition and caloric value of food consumed by the subject, an intensity and duration of activity by the subject, a rate and maximum capacity of glycogen storage in the subject, a rate and maximum capacity of de novo lipogenesis in the subject, a quality and duration of sleep by the subject, and/or an RQ level in the subject.Type: ApplicationFiled: December 7, 2017Publication date: May 10, 2018Inventors: Lawrence M. Candell, Christopher Ferraiolo, Gary A. Shaw, Andrew M. Siegel, George Zogbi, Holly Lehmann McClung, Reed Wasson Hoyt
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Publication number: 20180092538Abstract: Systems and methods are provided to obtain optical coherence tomography data and fluorescence imaging data from an object. The systems and methods use a single light source to illuminate and excite fluorescence in the object and a common optical path including an optical fiber to provide illumination and excitation light and collect reflected and emitted light at the object. The optical coherence tomography data and fluorescence imaging data can be combined to produce morphological images of an object with additional location-specific fluorescence cues.Type: ApplicationFiled: January 20, 2017Publication date: April 5, 2018Applicant: Massachusetts Institute of TechnologyInventors: Nandini Rajan, Andrew M. Siegel, Angela M. Belcher, Neelkanth M. Bardhan
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Publication number: 20170055875Abstract: Systems, apparatus, and methods related to modeling, monitoring, and/or managing metabolism of a subject include measuring a respiratory quotient (RQ) level in a subject and/or optimizing and executing a nonlinear feedback model to model energy substrate utilization in the subject based on at least one of a macronutrient composition and caloric value of food consumed by the subject, an intensity and duration of activity by the subject, a rate and maximum capacity of glycogen storage in the subject, a rate and maximum capacity of de novo lipogenesis in the subject, a quality and duration of sleep by the subject, and/or an RQ level in the subject.Type: ApplicationFiled: July 27, 2016Publication date: March 2, 2017Inventors: Lawrence M. CANDELL, Christopher Ferraiolo, Gary A. Shaw, Andrew M. Siegel, George Zogbi
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Publication number: 20170017069Abstract: System and method configured to operate under conditions when the object being imaged destroys or negates the information which otherwise allows the user to take advantage of optical parallax, configured to elicit luminescence from the same targets in the object as a result of irradiation of these targets with pump light at different, respectively corresponding wavelengths, and acquire optical data from so-illuminated targets through the very same optical path to image the object at different wavelengths. One embodiment enables acquisition, by the same optical detector and from the same object, of imaging data that includes a reflectance image and multiple fluorescence-based images caused by light at different wavelengths, to assess difference in depths of locations of targets within the object.Type: ApplicationFiled: July 13, 2016Publication date: January 19, 2017Inventors: ANDREW M. SIEGEL, NANDINI RAJAN, ANGELA M. BELCHER, NEELKANTH M. BARDHAN
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Patent number: 9289120Abstract: The present invention provides devices and methods for detecting and tracking fast-moving-object. In one application, the present invention can be employed to detect and track fast eye movements (saccades). An example device of the present invention tracks a moving object by generating, within a single frame of a detector (e.g., a video camera) two or more images of the moving object. The images are generated by illuminating the moving objects with sequentially activated light sources (e.g. sequentially strobed light-emitting diodes). The rate at which the light sources are sequentially activated exceeds the frame rate of the detector, resulting in generating multiple images of the moving object within a single frame of the detector. The devices and methods described herein, including a saccadometry system, can utilize off-the-shelf components and does not require expensive high-frame-rate video equipment.Type: GrantFiled: March 12, 2013Date of Patent: March 22, 2016Assignee: Massachussetts Institute of TechnologyInventors: Nandini Rajan, Andrew M. Siegel
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Publication number: 20150190051Abstract: The present invention provides devices and methods for detecting and tracking fast-moving-object. In one application, the present invention can be employed to detect and track fast eye movements (saccades). An example device of the present invention tracks a moving object by generating, within a single frame of a detector (e.g., a video camera) two or more images of the moving object. The images are generated by illuminating the moving objects with sequentially activated light sources (e.g. sequentially tally strobed light-emitting diodes). The rate at which the light sources are sequentially activated exceeds the frame rate of the detector, resulting in generating multiple images of the moving object within a single frame of the detector. The devices and methods described herein, including a saccadometry system, can utilize off-the-shelf components and does not require expensive high-frame-rate video equipment.Type: ApplicationFiled: March 12, 2013Publication date: July 9, 2015Inventors: Nandini Rajan, Andrew M. Siegel