Patents by Inventor Rajiv Shah
Rajiv Shah 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: 20230355147Abstract: In one embodiment, a sensor to measure the presence of an analyte is disclosed. The sensor includes a working conductor with an electrode reactive surface. The sensor further includes a first reactive chemistry that is responsive to a first analyte and is in direct contact with the electrode reactive surface. The first reactive chemistry includes an enzyme, a first transport material, and an entrappable cofactor that includes a cofactor for the enzyme coupled to an anchor molecule. The sensor further includes a second transport material that enables diffusion of the first analyte to the first reactive chemistry.Type: ApplicationFiled: April 18, 2023Publication date: November 9, 2023Applicant: PercuSense, Inc.Inventors: KAITLYNN OLCZAK, MIRELIS SANTOS CANCEL, RAJIV SHAH, BRIAN KANNARD, BRADLEY LIANG, ELIZABETH ESPINOZA
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Patent number: 11806135Abstract: Sensing and infusion devices are described. In one embodiment, a sensing and infusion device may include an implantable segment having a sensor. The sensing and infusion device may also include a catheter, and a sensor channel may be formed in the catheter. The sensor channel may be configured to retain at least a portion of the implantable segment.Type: GrantFiled: August 19, 2021Date of Patent: November 7, 2023Assignee: PercuSense, Inc.Inventors: Rajiv Shah, Ellen Messer, Katherine Wolfe, Shaun Pendo
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Patent number: 11806139Abstract: An on-body insertion system is described. The on-body system includes a sensor in a first position being substantially parallel to an insertion surface. Activation of an actuator transitions the sensor to a second position. Wherein the transition imparts movement to the sensor that is substantially parallel to the insertion surface and the second position results in the sensing area being beneath the insertion surface.Type: GrantFiled: October 30, 2020Date of Patent: November 7, 2023Assignee: PercuSense, Inc.Inventors: Katherine Wolfe, Joseph Ferreira, Ellen Messer, Rajiv Shah, Konrad Chan
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Patent number: 11701034Abstract: An introducer is provided for introducing a sensor into the body of a patient. The introducer connects to a sensor hub. When the sensor hub and introducer are connected, the introducer needle is exposed. When the sensor hub and introducer are disconnected, a needle cover and the needle move with respect to each other so that the needle cover substantially covers the needle, protecting a user from being injured by the needle.Type: GrantFiled: October 10, 2019Date of Patent: July 18, 2023Assignee: MEDTRONIC MINIMED, INC.Inventors: Rebecca K. Gottlieb, Rajiv Shah, Katherine T. Wolfe, Eric Allan Larson
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Publication number: 20230119049Abstract: An electrode measuring the presence of an analyte is described as one embodiment. The electrode includes a working conductor with an electrode reactive surface and a first reactive chemistry that is responsive to the analyte. The electrode further includes a first transport material that enables flux of the first analyte to the first reactive chemistry and a second transport material that supplies a reactant to the first reactive chemistry. Wherein the first reactive chemistry does not contact the electrode reactive surface while at least partially shadowing a portion of the electrode reactive surface.Type: ApplicationFiled: December 16, 2022Publication date: April 20, 2023Applicant: PercuSense, Inc.Inventors: RAJIV SHAH, BRADLEY C. LIANG, KATHERINE WOLFE, ELLEN MESSER, SHAUN PENDO
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Publication number: 20230106459Abstract: In one embodiment, an infusion set and sensor assembly delivered within a subject is disclosed. The assembly includes a cannula that is terminated at a cannula opening. The assembly further includes a sharp that is at least partially within the hollow of the cannula. A sensor having a proximal end and a distal end is also included in the assembly. The proximal end of the sensor is held in a fixed location while the distal end is retained with a portion of the cannula. The sensor further includes sensor slack, wherein transitioning the sharp from a first position to a second position simultaneously inserts the cannula and sensor to a desired insertion depth within a subject via a single point of insertion.Type: ApplicationFiled: December 9, 2022Publication date: April 6, 2023Applicant: PercuSense, Inc.Inventors: KATHERINE WOLFE, RAJIV SHAH
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Publication number: 20230075014Abstract: A biosensor assembly that measures multiple physical parameters is disclosed. The biosensor assembly includes a first implantable probe and a first skin contacting electrode. Wherein a first physiological parameter is measured between the first implantable probe and the first skin contactable electrode.Type: ApplicationFiled: November 15, 2022Publication date: March 9, 2023Applicant: PercuSense, Inc.Inventors: RAJIV SHAH, BRADLEY C LIANG, ELLEN MESSER, KATHERINE WOLFE
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Publication number: 20230017510Abstract: Electrochemical impedance spectroscopy (EIS) may be used in conjunction with continuous glucose monitoring (CGM) to enable identification of valid and reliable sensor data, as well implementation of Smart Calibration algorithms.Type: ApplicationFiled: August 22, 2022Publication date: January 19, 2023Inventors: Keith Nogueira, Taly G. Engel, Xiaolong Li, Bradley C. Liang, Rajiv Shah, Mike C. Liu, Andy Y. Tsai
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Patent number: 11553862Abstract: An electrode measuring the presence of an analyte is described as one embodiment. The electrode includes a working conductor with an electrode reactive surface and a first reactive chemistry that is responsive to the analyte. The electrode further includes a first transport material that enables flux of the first analyte to the first reactive chemistry and a second transport material that supplies a reactant to the first reactive chemistry. Wherein the first reactive chemistry does not contact the electrode reactive surface while at least partially shadowing a portion of the electrode reactive surface.Type: GrantFiled: June 22, 2018Date of Patent: January 17, 2023Assignee: PercuSense, Inc.Inventors: Rajiv Shah, Bradley Liang, Katherine Wolfe, Ellen Messer, Shaun Pendo
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Patent number: 11547812Abstract: In one embodiment, an infusion set and sensor assembly delivered within a subject is disclosed. The assembly includes a cannula that is terminated at a cannula opening. The assembly further includes a sharp that is at least partially within the hollow of the cannula. A sensor having a proximal end and a distal end is also included in the assembly. The proximal end of the sensor is held in a fixed location while the distal end is retained with a portion of the cannula. The sensor further includes sensor slack, wherein transitioning the sharp from a first position to a second position simultaneously inserts the cannula and sensor to a desired insertion depth within a subject via a single point of insertion.Type: GrantFiled: July 23, 2020Date of Patent: January 10, 2023Assignee: PercuSense, Inc.Inventors: Katherine Wolfe, Rajiv Shah
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Patent number: 11529053Abstract: A biosensor assembly that measures multiple physical parameters is disclosed. The biosensor assembly includes a first implantable probe and a first skin contacting electrode. Wherein a first physiological parameter is measured between the first implantable probe and the first skin contactable electrode.Type: GrantFiled: August 3, 2018Date of Patent: December 20, 2022Assignee: PercuSense, Inc.Inventors: Rajiv Shah, Bradley C Liang, Ellen Messer, Katherine Wolfe
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Publication number: 20220304599Abstract: In one embodiment, a working electrode measuring the presence of a first analyte is disclosed. The working electrode includes a working conductor that has a first electrode reactive surface. The working electrode further includes a first transport material that enables flux of the first analyte to the first reactive chemistry. Additionally, a first reactive chemistry that is responsive to the first analyte is included in the working electrode. The first reactive chemistry includes a mediator, an enzyme and a cofactor. Wherein the first reactive chemistry is located between the working conductor and the first transport material.Type: ApplicationFiled: August 31, 2020Publication date: September 29, 2022Inventors: Bradley LIANG, Rajiv SHAH
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Patent number: 11446108Abstract: A product allows gaseous manufacturing by-products to be vented from the inside a sealed package tray. An exemplary method for packaging a device includes sealing the device inside a package tray with a gas-permeable sealing material, resulting in a sealed package tray. The sealing material allows volatile substances to vent from inside the sealed package tray to outside the sealed package tray.Type: GrantFiled: February 27, 2017Date of Patent: September 20, 2022Assignee: Medtronic MiniMed, Inc.Inventors: Eric Allan Larson, Rajiv Shah
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Patent number: 11445952Abstract: Electrochemical impedance spectroscopy (EIS) may be used in conjunction with continuous glucose monitoring (CGM) to enable identification of valid and reliable sensor data, as well implementation of Smart Calibration algorithms.Type: GrantFiled: April 18, 2019Date of Patent: September 20, 2022Assignee: Medtronic MiniMed, Inc.Inventors: Keith Nogueira, Taly G. Engel, Xiaolong Li, Bradley C. Liang, Rajiv Shah, Mike C. Liu, Andy Y. Tsai
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Publication number: 20220262475Abstract: Disclosed herein are techniques related to adaptive signal processing. The techniques may involve: obtaining a plurality of unfiltered measurement values based on signals generated by a sensor; determining a plurality of filtered measurement values based on the plurality of unfiltered measurement values; determining, based on the plurality of filtered measurements, a first derivative metric for a current filtered measurement of the plurality of filtered measurements and a second derivative metric for the current filtered measurement; determining an output filtered measurement indicative of a physiological condition of a user based at least in part on the current filtered measurement, the first derivative metric, the second derivative metric, and a previous output measurement; and outputting the output filtered measurement.Type: ApplicationFiled: May 2, 2022Publication date: August 18, 2022Inventors: Keith Nogueira, Pratik J. Agrawal, Brian T. Kannard, Xiaolong Li, Bradley C. Liang, Rajiv Shah, Yuxiang Zhong
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Publication number: 20220248987Abstract: Sensing and infusion devices are described. In one embodiment, a sensing and infusion device may include an implantable segment having a sensor. The sensing and infusion device may also include a catheter, and a sensor channel may be formed in the catheter. The sensor channel may be configured to retain at least a portion of the implantable segment.Type: ApplicationFiled: August 19, 2021Publication date: August 11, 2022Applicant: Percusense, Inc.Inventors: Rajiv SHAH, Ellen MESSER, Katherine WOLFE, Shaun PENDO
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Publication number: 20220183598Abstract: A working electrode measuring the presence of an analyte is described as one embodiment. The working electrode includes a working conductor with a reactive surface that is operated at a first potential. The working electrode further includes a first transport material with properties that enable analyte flux to the reactive surface. Additionally, the working electrode has a second transport material with properties that enable reactant flux to the reactive surface, wherein the analyte flux and the reactant flux are in dissimilar directions.Type: ApplicationFiled: February 28, 2022Publication date: June 16, 2022Applicant: PercuSense, Inc.Inventors: Rajiv Shah, Bradley C. Liang, Katherine Wolfe, Ellen K. Messer, Shaun M. Pendo
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Publication number: 20220133179Abstract: A diagnostic Electrochemical Impedance Spectroscopy (EIS) procedure is applied to measure values of impedance-related parameters for one or more sensing electrodes. The parameters may include real impedance, imaginary impedance, impedance magnitude, and/or phase angle. The measured values of the impedance-related parameters are then used in performing sensor diagnostics, calculating a highly-reliable fused sensor glucose value based on signals from a plurality of redundant sensing electrodes, calibrating sensors, detecting interferents within close proximity of one or more sensing electrodes, and testing surface area characteristics of electroplated electrodes. Advantageously, impedance-related parameters can be defined that are substantially glucose-independent over specific ranges of frequencies. An Application Specific Integrated Circuit (ASIC) enables implementation of the EIS-based diagnostics, fusion algorithms, and other processes based on measurement of EIS-based parameters.Type: ApplicationFiled: January 10, 2022Publication date: May 5, 2022Inventors: Ning Yang, Raghavendhar Gautham, Bradley C. Liang, Rajiv Shah
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Patent number: 11321214Abstract: A computer-implemented method for determining features of a dataset that are indicative of anomalous behavior of one or more computers in a large group of computers comprises (1) receiving log files including a plurality of entries of data regarding connections between a plurality of computers belonging to an organization and a plurality of websites outside the organization, each entry being associated with the actions of one computer, (2) executing a time series decomposition algorithm on a portion of the features of the data to generate a first list of features, (3) implementing a plurality of traffic dispersion graphs to generate a second list of features, and (4) implementing an autoencoder and a random forest regressor to generate a third list of features.Type: GrantFiled: October 12, 2020Date of Patent: May 3, 2022Assignee: STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANYInventors: Rajiv Shah, Shannon Morrison, Jeremy Cunningham, Taylor Smith, Sripriya Sundararaman, Jing Wan, Jeffrey Hevrin, Ronald Duehr, Brad Sliz, Lucas Allen
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Patent number: 11310253Abstract: A computer-implemented method for detecting anomalous behavior of one or more computers in a large group of computers comprises (1) receiving log files including a plurality of entries of data regarding connections between a plurality of computers belonging to an organization and a plurality of websites outside the organization, each entry being associated with the actions of one computer, (2) applying a first plurality of algorithms to determine features of the data which may contribute to anomalous behavior of the computers, and (3) applying a second plurality of algorithms to determine which computers are behaving anomalously based upon the features.Type: GrantFiled: April 7, 2020Date of Patent: April 19, 2022Assignee: STATE FARM MUTUAL AUTOMOBILE INSURANCE COMPANYInventors: Rajiv Shah, Shannon Morrison, Jeremy Cunningham, Taylor Smith, Sripriya Sundararaman, Jing Wan, Jeffrey Hevrin, Ronald Duehr, Brad Sliz, Lucas Allen