Patents by Inventor Daniel E. Pesantez
Daniel E. Pesantez 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: 20240023849Abstract: Embodiments of the invention provide compositions useful in implantable devices such as analyte sensors as well as methods for making and using such compositions and devices. In typical embodiments of the invention, the device is a glucose sensor comprising an analyte modulating layer formed from acrylate hydrogel composition that modulates the diffusion of glucose through the analyte modulating layer and which further comprises a bioactive agent selected to enhance the biocompatibility of analyte sensors when implanted in vivo.Type: ApplicationFiled: June 29, 2023Publication date: January 25, 2024Applicant: Medtronic MiniMed, Inc.Inventors: Daniel E. Pesantez, Ashwin K. Rao, Inthirai Somasuntharam
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Patent number: 11793930Abstract: A fluid infusion system includes a housing configured to be adhesively coupled to an anatomy of a user, and a tube configured to extend from the housing for insertion into the anatomy of the user. The tube includes a plurality of conduits defined within the tube. The plurality of conduits include a fluid delivery conduit configured to facilitate a fluidic connection between a fluid source and the anatomy of the user, and one or more conduits configured to accommodate a plurality of electrodes for determining a physiological characteristic of the user.Type: GrantFiled: June 4, 2020Date of Patent: October 24, 2023Assignee: Medtronic MiniMed, Inc.Inventors: Chia-Hung Chiu, Rebecca K. Gottlieb, Ellis Garai, Akhil Srinivasan, Andrea Varsavsky, Adam S. Trock, Ashwin K. Rao, Hsifu Wang, Daniel E. Pesantez, Isabella Ella Miya, Xinrui Zhang, Guruguhan Meenakshisundaram
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Patent number: 11718865Abstract: Embodiments of the invention provide multilayer analyte sensors having elements and/or architectures that function to improve oxygen delivery to sensor enzymes in manner that enhances sensor function, as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.Type: GrantFiled: July 26, 2019Date of Patent: August 8, 2023Assignee: MEDTRONIC MINIMED, INC.Inventors: Daniel E. Pesantez, Ashwin K. Rao, Ellis Garai, Rui Kong, Michael E. Miller
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Patent number: 11642454Abstract: A fluid infusion system includes a housing configured to be adhesively coupled to an anatomy of the user. The housing comprises a communication device configured to wirelessly communicate a physiological characteristic to a communication component of a fluid infusion device. The fluid infusion system includes a fluid flow path from the fluid infusion device into the anatomy of the user, and the fluid flow path is configured to extend from the housing for insertion into the anatomy of the user.Type: GrantFiled: June 4, 2020Date of Patent: May 9, 2023Assignee: Medtronic MiniMed, Inc.Inventors: Chia-Hung Chiu, Rebecca K. Gottlieb, Ellis Garai, Akhil Srinivasan, Andrea Varsavsky, Adam S. Trock, Ashwin K. Rao, Hsifu Wang, Daniel E. Pesantez, Isabella Ella Miya, Xinrui Zhang, Guruguhan Meenakshisundaram
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Publication number: 20220240823Abstract: Embodiments of the invention provide amperometric analyte sensors having optimized elements such as interference rejection membranes, and associated architectures, as well as methods for making and using such sensors. While embodiments of the innovation can be used in a variety of contexts, typical embodiments of the invention include glucose sensors used in the management of diabetes.Type: ApplicationFiled: January 29, 2021Publication date: August 4, 2022Applicant: Medtronic MiniMed, Inc.Inventors: Ashwin K. Rao, Qingling Yang, Ellis Garai, Daniel E. Pesantez
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Publication number: 20210024972Abstract: Embodiments of the invention provide multilayer analyte sensors having elements and/or architectures that function to improve oxygen delivery to sensor enzymes in manner that enhances sensor function, as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.Type: ApplicationFiled: July 26, 2019Publication date: January 28, 2021Applicant: MEDTRONIC MINIMED, INC.Inventors: Daniel E. Pesantez, Ashwin K. Rao, Ellis Garai, Rui Kong, Michael E. Miller
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Publication number: 20200384197Abstract: A fluid infusion system includes a housing configured to be adhesively coupled to an anatomy of the user. The housing comprises a communication device configured to wirelessly communicate a physiological characteristic to a communication component of a fluid infusion device. The fluid infusion system includes a fluid flow path from the fluid infusion device into the anatomy of the user, and the fluid flow path is configured to extend from the housing for insertion into the anatomy of the user.Type: ApplicationFiled: June 4, 2020Publication date: December 10, 2020Inventors: Chia-Hung Chiu, Rebecca K. Gottlieb, Ellis Garai, Akhil Srinivasan, Andrea Varsavsky, Adam S. Trock, Ashwin K. Rao, Hsifu Wang, Daniel E. Pesantez, Isabella Ella Miya, Xinrui Zhang, Guruguhan Meenakshisundaram
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Publication number: 20200384193Abstract: A fluid infusion system includes a housing configured to be adhesively coupled to an anatomy of a user, and a tube configured to extend from the housing for insertion into the anatomy of the user. The tube includes a plurality of conduits defined within the tube. The plurality of conduits include a fluid delivery conduit configured to facilitate a fluidic connection between a fluid source and the anatomy of the user, and one or more conduits configured to accommodate a plurality of electrodes for determining a physiological characteristic of the user.Type: ApplicationFiled: June 4, 2020Publication date: December 10, 2020Inventors: Chia-Hung Chiu, Rebecca K. Gottlieb, Ellis Garai, Akhil Srinivasan, Andrea Varsavsky, Adam S. Trock, Ashwin K. Rao, Hsifu Wang, Daniel E. Pesantez, Isabella Ella Miya, Xinrui Zhang, Guruguhan Meenakshisundaram
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Patent number: 10845330Abstract: A physiological characteristic sensor, a method for forming a physiological characteristic sensor, and a method for forming a platinum deposit having a rough surface are presented here. The method for forming a physiological characteristic sensor includes immersing a sensor electrode in a platinum electrolytic bath. Further, the method includes performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode, wherein the pulsed signal includes a repeated cycle of a first current and a second current different from the first current, and applying a non-pulsed continuous signal to the sensor electrode, wherein the non-pulsed continuous signal includes a non-repeated application of a third current, to form a platinum deposit on the sensor electrode.Type: GrantFiled: May 15, 2017Date of Patent: November 24, 2020Assignee: Medtronic MiniMed, Inc.Inventors: Steven C. Jacks, Raghavendhar Gautham, Bradley C. Liang, Megan E. Little, Daniel E. Pesantez, Rajiv Shah
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Patent number: 10772540Abstract: Embodiments of the invention provide analyte sensors having optimized electrodes and/or configurations of electrode elements as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.Type: GrantFiled: January 7, 2019Date of Patent: September 15, 2020Assignee: MEDTRONIC MINIMED, INC.Inventors: Daniel E. Pesantez, Xiaolong Li, Bradley Chi Liang
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Patent number: 10448872Abstract: Embodiments of the invention provide analyte sensors having optimized elements and/or configurations of elements as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.Type: GrantFiled: March 14, 2011Date of Patent: October 22, 2019Assignee: MEDTRONIC MINIMED, INC.Inventors: Katherine T. Wolfe, Ameya S. Kantak, Eric Allan Larson, Daniel E. Pesantez, Dongjuan Xi, Chia-Hung Chiu, Rajiv Shah
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Publication number: 20190274600Abstract: Embodiments of the invention provide analyte sensors having optimized electrodes and/or configurations of electrode elements as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.Type: ApplicationFiled: January 7, 2019Publication date: September 12, 2019Applicant: Medtronic MiniMed, Inc.Inventors: Daniel E. Pesantez, Xiaolong Li, Bradley Chi Liang
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Publication number: 20190223771Abstract: Embodiments of the invention provide optimized polymeric surfaces adapted for use with implantable medical devices as well as methods for making and using such polymeric surfaces. These polymer surfaces have a constellation of features that function to inhibit or avoid an inflammatory immune response generated by implantable medical devices. Typical embodiments of the invention include an implantable glucose sensor used in the management of diabetes having a polymer surface with the disclosed constellation of features.Type: ApplicationFiled: January 23, 2018Publication date: July 25, 2019Applicant: MEDTRONIC MINIMED, INC.Inventors: Jia Yao, Daniel E. Pesantez, Anuradha Biswas Bhatia, Akhil Srinivasan, Guangping Zhang, Andrea Varsavsky, Raghavendhar Gautham
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Patent number: 10324058Abstract: Embodiments of the invention provide an in-situ polymerization technique for creating a glucose sensor chemistry stack. An analyte sensor comprises a crosslinked polymer matrix in contact with an electrode. The crosslinked polymer matrix is formed by exposing ultraviolet (UV) light to a polymer matrix mixture comprising a plurality of hydroxyethyl methacrylate (HEMA) monomers, one or more di-acrylate crosslinkers, one or more UV photoinitiators, and an oxidoreductase. The oxidoreductase is covalently linked to the crosslinked polymer matrix. In typical embodiments, the oxidoreductase is a glucose oxidase-acrylate bioconjugate. In one or more embodiments, the analyte sensor apparatus further comprises a glucose limiting membrane positioned over the crosslinked polymer matrix.Type: GrantFiled: April 28, 2016Date of Patent: June 18, 2019Assignee: MEDTRONIC MINIMED, INC.Inventors: Ashwin K. Rao, Daniel E. Pesantez
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Patent number: 10194840Abstract: Embodiments of the invention provide analyte sensors having optimized electrodes and/or configurations of electrode elements as well as methods for making and using such sensors. Typical embodiments of the invention include glucose sensors used in the management of diabetes.Type: GrantFiled: December 6, 2012Date of Patent: February 5, 2019Assignee: Medtronic MiniMed, Inc.Inventors: Daniel E. Pesantez, Xiaolong Li, Bradley Chi Liang
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Publication number: 20170315077Abstract: Embodiments of the invention provide an in-situ polymerization technique for creating a glucose sensor chemistry stack. An analyte sensor comprises a crosslinked polymer matrix in contact with an electrode. The crosslinked polymer matrix is formed by exposing ultraviolet (UV) light to a polymer matrix mixture comprising a plurality of hydroxyethyl methacrylate (HEMA) monomers, one or more di-acrylate crosslinkers, one or more UV photoinitiators, and an oxidoreductase. The oxidoreductase is covalently linked to the crosslinked polymer matrix. In typical embodiments, the oxidoreductase is a glucose oxidase-acrylate bioconjugate. In one or more embodiments, the analyte sensor apparatus further comprises a glucose limiting membrane positioned over the crosslinked polymer matrix.Type: ApplicationFiled: April 28, 2016Publication date: November 2, 2017Applicant: Medtronic MiniMed, Inc.Inventors: Ashwin K. Rao, Daniel E. Pesantez
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Publication number: 20170248542Abstract: A physiological characteristic sensor, a method for forming a physiological characteristic sensor, and a method for forming a platinum deposit having a rough surface are presented here. The method for forming a physiological characteristic sensor includes immersing a sensor electrode in a platinum electrolytic bath. Further, the method includes performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode, wherein the pulsed signal includes a repeated cycle of a first current and a second current different from the first current, and applying a non-pulsed continuous signal to the sensor electrode, wherein the non-pulsed continuous signal includes a non-repeated application of a third current, to form a platinum deposit on the sensor electrode.Type: ApplicationFiled: May 15, 2017Publication date: August 31, 2017Inventors: Steven C. Jacks, Raghavendhar Gautham, Bradley C. Liang, Megan E. Little, Daniel E. Pesantez, Rajiv Shah
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Patent number: 9681828Abstract: A physiological characteristic sensor, a method for forming a physiological characteristic sensor, and a method for forming a platinum deposit having a rough surface are presented here. The method for forming a physiological characteristic sensor includes immersing a sensor electrode in a platinum electrolytic bath. Further, the method includes performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode and applying a non-pulsed continuous signal to the sensor electrode to form a platinum deposit on the sensor electrode.Type: GrantFiled: May 1, 2014Date of Patent: June 20, 2017Assignee: MEDTRONIC MINIMED, INC.Inventors: Steven C. Jacks, Raghavendhar Gautham, Bradley C. Liang, Megan E. Little, Daniel E. Pesantez, Rajiv Shah
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Publication number: 20160249840Abstract: Embodiments of the invention provide amperometric analyte sensor systems comprising a plurality of electrodes including one or more electrodes designed to monitor pH in order to facilitate the sensing of analytes at different pH levels within a sensor environment. Typical embodiments of the invention include glucose oxidase based amperometric sensors used in the management of diabetes.Type: ApplicationFiled: February 26, 2015Publication date: September 1, 2016Inventors: Daniel E. Pesantez, Jia Yao, Bradley C. Liang, Rajiv Shah
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Publication number: 20150316499Abstract: A physiological characteristic sensor, a method for forming a physiological characteristic sensor, and a method for forming a platinum deposit having a rough surface are presented here. The method for forming a physiological characteristic sensor includes immersing a sensor electrode in a platinum electrolytic bath. Further, the method includes performing an electrodeposition process by sequentially applying a pulsed signal to the sensor electrode and applying a non-pulsed continuous signal to the sensor electrode to form a platinum deposit on the sensor electrode.Type: ApplicationFiled: May 1, 2014Publication date: November 5, 2015Applicant: MEDTRONIC MINIMED, INC.Inventors: Steven C. Jacks, Raghavendhar Gautham, Bradley C. Liang, Megan E. Little, Daniel E. Pesantez, Rajiv Shah