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).
-
Patent number: 11931145Abstract: A continuous glucose monitoring system may include a hand-held monitor, a transmitter, an insulin pump, and an orthogonally redundant glucose sensor, which may comprise an optical glucose sensor and a non-optical glucose sensor. The former may be a fiber optical sensor, including a competitive glucose binding affinity assay with a glucose analog and a fluorophore-labeled glucose receptor, which is interrogated by an optical interrogating system, e.g., a stacked planar integrated optical system. The non-optical sensor may be an electrochemical sensor having a plurality of electrodes distributed along the length thereof. Proximal portions of the optical and electrochemical sensors may be housed inside the transmitter and operationally coupled with instrumentation for, e.g., receiving signals from the sensors, converting to respective glucose values, and communicating the glucose values.Type: GrantFiled: December 6, 2021Date of Patent: March 19, 2024Assignee: MEDTRONIC MINIMED, INC.Inventors: Rajiv Shah, Jesper Svenning Kristensen, Katherine T. Wolfe, Soren Aasmul, Anubhuti Bansal
-
Publication number: 20240057906Abstract: A sensor assembly is disclosed. The sensor assembly includes a piercing member with an interior and exterior. Also included within the sensor assembly is a sensor that is formed on a flexible substrate. The sensor includes a proximal end and a distal end where the distal end includes a flex that is terminated at a terminal end. The terminal end of the sensor being located within the interior of the piercing member.Type: ApplicationFiled: November 1, 2023Publication date: February 22, 2024Inventors: Rajiv SHAH, Katherine WOLFE, Bradley LIANG, Shaun PENDO
-
Publication number: 20240057905Abstract: A system to automatically detect at least one physiological state is disclosed. The system includes a single probe for insertion within a subject that has an analyte sensor array for continuous monitoring of at least glucose and a second analyte. The system further includes an electronics module that includes a power supply, a processor, memory and a bi-directional communications module. When the electronics module is coupled with the analyte sensor array the power supply delivers power to the analyte sensor array and the processor. The processor analyzing glucose and the second analyte data to detect a first physiological state from a plurality of physiological states.Type: ApplicationFiled: February 24, 2022Publication date: February 22, 2024Applicant: PercuSense, Inc.Inventors: RAJIV SHAH, BRADLEY C LIANG, ELLEN BOWMAN, KATHERINE WOLFE
-
Publication number: 20240023847Abstract: In one embodiment, a sensor is disclosed that includes a first conductive substrate coupled to, and electrically isolated from, a second conductive substrate. The sensor includes a first electrode trace within the first conductive substrate with a plurality of first working electrode openings. The sensor also includes a second electrode trace within the first conductive substrate with a plurality of second working electrode openings. Additionally a first transport material is included that covers the plurality of first working electrode openings and a second transport material that covers the plurality of second working electrode openings. A third transport material covers, and forms a barrier between the first and the second transport material. The sensor additionally includes a counter-reference electrode that is formed on the second conductive substrate.Type: ApplicationFiled: July 22, 2022Publication date: January 25, 2024Applicant: PercuSense, Inc.Inventors: Rajiv Shah, Bradley C. Liang, Katherine Wolfe
-
Publication number: 20240008778Abstract: 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: ApplicationFiled: September 22, 2023Publication date: January 11, 2024Applicant: PercuSense, Inc.Inventors: Katherine Wolfe, Joseph Ferreira, Ellen Messer, Rajiv Shah, Konrad Chan
-
Publication number: 20230363671Abstract: 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: July 14, 2023Publication date: November 16, 2023Inventors: Rajiv SHAH, Ellen MESSER, Katherine WOLFE, Shaun PENDO
-
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
-
Publication number: 20230360799Abstract: A method for retrospective calibration of a glucose sensor uses stored values of measured working electrode current (Isig) to calculate a final sensor glucose (SG) value retrospectively. The Isig values may be preprocessed, discrete wavelet decomposition applied. At least one machine learning model, such as, e.g., Genetic Programing (GP) and Regression Decision Tree (DT), may be used to calculate SG values based on the Isig values and the discrete wavelet decomposition. Other inputs may include, e.g., counter electrode voltage (Vcntr) and Electrochemical Impedance Spectroscopy (EIS) data. A plurality of machine learning models may be used to generate respective SG values, which are then fused to generate a fused SG. Fused SG values may be filtered to smooth the data, and blanked if necessary.Type: ApplicationFiled: May 26, 2023Publication date: November 9, 2023Inventors: Keith Nogueira, Taly G. Engel, Benyamin Grosman, Xiaolong Li, Bradley C. Liang, Rajiv Shah, Mike C. Liu, Andy Y. Tsai, Andrea Varsavsky, Jeffrey Nishida
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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