Patents by Inventor Guangping Zhang

Guangping Zhang 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).

  • Publication number: 20250108150
    Abstract: This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
    Type: Application
    Filed: December 13, 2024
    Publication date: April 3, 2025
    Inventors: Kiem H. Dang, Sarnath Chattaraj, Hsi C. Fusselman, Lance P. Hoffman, Guangping Zhang
  • Patent number: 12208181
    Abstract: This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: January 28, 2025
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Kiem H. Dang, Sarnath Chattaraj, Hsi C. Fusselman, Lance P. Hoffman, Guangping Zhang
  • Patent number: 12201752
    Abstract: This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: January 21, 2025
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Kiem H. Dang, Sarnath Chattaraj, Hsi C. Fusselman, Lance P. Hoffman, Guangping Zhang
  • Publication number: 20240358294
    Abstract: 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: Application
    Filed: July 3, 2024
    Publication date: October 31, 2024
    Applicant: Medtronic MiniMed, Inc.
    Inventors: Jia Yao, Daniel E. Pesantez, Anuradha Biswas Bhatia, Akhil Srinivasan, Guangping Zhang, Andrea Varsavsky, Raghavendhar Gautham
  • Patent number: 12042284
    Abstract: 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: Grant
    Filed: January 23, 2018
    Date of Patent: July 23, 2024
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Jia Yao, Daniel E. Pesantez, Anuradha Biswas Bhatia, Akhil Srinivasan, Guangping Zhang, Andrea Varsavsky, Raghavendhar Gautham
  • Patent number: 11944784
    Abstract: Disclosed herein are combined devices and methods of manufacturing such combined devices. The combined devices disclosed herein include an analyte sensor including a sensor probe; an infusion set hub including a cannula; and a flexible base. The analyte sensor and infusion set hub are attached to the flexible base such that movement of one of the analyte sensor and the infusion set hub is substantially not transferred to the other one of the analyte sensor and the infusion set hub.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: April 2, 2024
    Assignee: Medtronic Minimed, Inc.
    Inventors: Guangping Zhang, Kiem H. Dang, Valerie Chen, Ling Jiang, Evan Anselmo, Zhiwu Fang, Sarnath Chattaraj
  • Publication number: 20240001046
    Abstract: A fluid delivery system and a fluid conduit assembly suitable for use with the system are disclosed herein. The system includes a fluid infusion pump and a fluid conduit assembly coupled to the pump to deliver medication fluid to a user. The fluid conduit assembly includes a structure defining a flow path for the medication fluid, and a gas trapping filter coupled to the structure and positioned in the flow path. The gas trapping filter functions to filter particulates from the medication fluid and retain gas bubbles from the medication fluid.
    Type: Application
    Filed: September 19, 2023
    Publication date: January 4, 2024
    Inventors: Sarnath Chattaraj, Kiem H. Dang, Poonam S. Gulati, Guangping Zhang
  • Patent number: 11786673
    Abstract: A fluid delivery system and a fluid conduit assembly suitable for use with the system are disclosed herein. The system includes a fluid infusion pump and a fluid conduit assembly coupled to the pump to deliver medication fluid to a user. The fluid conduit assembly includes a structure defining a flow path for the medication fluid, and a gas trapping filter coupled to the structure and positioned in the flow path. The gas trapping filter functions to filter particulates from the medication fluid and retain gas bubbles from the medication fluid.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: October 17, 2023
    Assignee: MEDTRONIC MINIMED, INC.
    Inventors: Sarnath Chattaraj, Kiem H. Dang, Poonam S. Gulati, Guangping Zhang
  • Patent number: 11672910
    Abstract: Medical devices and methods and apparatuses for identifying fluids in a conduit of a device are provided. An exemplary medical device includes a reservoir for holding a fluid and a conduit for dispensing the fluid from the reservoir. Further, the medical device includes a spectroscopy device for examining the fluid.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: June 13, 2023
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Guangping Zhang, Sarnath Chattaraj, Anuradha Biswas Bhatia, Maria C. LoVerme, Afshin Bazargan
  • Publication number: 20230123613
    Abstract: The invention provides amperometric analyte sensor systems comprising one or more electrodes designed to monitor in vivo levels of 3-hydroxybutyrate (and optionally glucose as well) in order to facilitate the management of diabetic ketoacidosis. The invention further includes compositions, elements and methods useful with such amperometric analyte sensor systems.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 20, 2023
    Applicant: Medtronic MiniMed, Inc.
    Inventors: Ashwin K. Rao, Quyen B. Ong, Michael E. Miller, Sarnath Chattaraj, Guangping Zhang, Poonam Gulati, Ariel Reider, Mohsen Askarinya, Michael N. Missaghi, Chi-En Lin, Xin Heng, Inthirai Somasuntharam, Melissa Tsang, Carlos E. Maldonado, Akhil Srinivasan
  • Publication number: 20230108058
    Abstract: This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
    Type: Application
    Filed: August 30, 2022
    Publication date: April 6, 2023
    Inventors: Kiem H. Dang, Sarnath Chattaraj, Hsi C. Fusselman, Lance P. Hoffman, Guangping Zhang
  • Publication number: 20220409777
    Abstract: This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
    Type: Application
    Filed: August 30, 2022
    Publication date: December 29, 2022
    Inventors: Kiem H. Dang, Sarnath Chattaraj, Hsi C. Fusselman, Lance P. Hoffman, Guangping Zhang
  • Patent number: 11439352
    Abstract: A medical device includes a hub and an adhesive patch coupled to the hub. The adhesive patch is to couple the hub to an anatomy. The adhesive patch defines an edge that extends along a perimeter of the adhesive patch. The medical device includes an anisotropic shim coupled to the adhesive patch along the perimeter of the adhesive patch proximate the edge to resist an uncoupling of the adhesive patch from the anatomy. The anisotropic shim has an inner periphery spaced apart from an outer periphery and the anisotropic shim is locally rigid between the inner periphery and the outer periphery.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: September 13, 2022
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Matthew William Yavorsky, Sarnath Chattaraj, Kiem H. Dang, Guangping Zhang
  • Publication number: 20220031941
    Abstract: This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
    Type: Application
    Filed: October 12, 2021
    Publication date: February 3, 2022
    Applicant: Medtronic MiniMed, Inc.
    Inventors: Kiem H. Dang, Sarnath Chattaraj, Hsi C. Fusselman, Lance P. Hoffman, Guangping Zhang
  • Patent number: 11207463
    Abstract: Apparatuses and methods for identifying an infusate in a reservoir of an infusion device and systems for use in filling fluid delivery devices are provided. An exemplary apparatus for identifying an infusate in a reservoir of an infusion device includes a chamber in selective fluid communication with the reservoir. Further, the apparatus includes an indicator located in the chamber. The indicator exhibits a visual change when contacted by an infusate. The apparatus also includes a detector arrangement to identify the infusate by detecting the visual change in the indicator. An exemplary detector arrangement may include a camera to capture an image of the infusate and indicator in the chamber, and an identifier element to compare image data to a library of stored image data.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: December 28, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Afshin Bazargan, Sarnath Chattaraj, Hsi Chung Fusselman, Guangping Zhang, Jinghua Chen
  • Patent number: 11197949
    Abstract: This invention pertains to systems and components useful for infusing medications such as insulin. Typically, the components are used to deliver insulin to a diabetic patient at a site of infusion over a period of time greater than 4 days. The system components typically comprise a cannula adapted for subcutaneous insertion into a diabetic patient. The system further comprises a fluid conduit adapted to deliver the insulin solution from a medication reservoir to the site of infusion and a depot in operable contact with the fluid conduit. The depot comprises selected materials including a site-loss mitigating agent (such as heparin) which inhibits inflammation at the site of infusion, and encapsulation of the cannula at the site of infusion. The site-loss mitigating agent is not premixed with the insulin, and instead is adapted to contact the insulin solution in the depot as the insulin solution flows from the medication reservoir to the site of infusion.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: December 14, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Kiem H. Dang, Sarnath Chattaraj, Hsi C. Fusselman, Lance P. Hoffman, Guangping Zhang
  • Publication number: 20210338943
    Abstract: A fluid delivery system and a fluid conduit assembly suitable for use with the system are disclosed herein. The system includes a fluid infusion pump and a fluid conduit assembly coupled to the pump to deliver medication fluid to a user. The fluid conduit assembly includes a structure defining a flow path for the medication fluid, and a gas trapping filter coupled to the structure and positioned in the flow path. The gas trapping filter functions to filter particulates from the medication fluid and retain gas bubbles from the medication fluid.
    Type: Application
    Filed: July 13, 2021
    Publication date: November 4, 2021
    Inventors: Sarnath Chattaraj, Kiem H. Dang, Poonam S. Gulati, Guangping Zhang
  • Patent number: 11090446
    Abstract: A fluid delivery system and a fluid conduit assembly suitable for use with the system are disclosed herein. The system includes a fluid infusion pump and a fluid conduit assembly coupled to the pump to deliver medication fluid to a user. The fluid conduit assembly includes a structure defining a flow path for the medication fluid, and a gas trapping filter coupled to the structure and positioned in the flow path. The gas trapping filter functions to filter particulates from the medication fluid and retain gas bubbles from the medication fluid.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: August 17, 2021
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Sarnath Chattaraj, Kiem H. Dang, Poonam S. Gulati, Guangping Zhang
  • Publication number: 20210146047
    Abstract: Disclosed herein are combined devices and methods of manufacturing such combined devices. The combined devices disclosed herein include an analyte sensor including a sensor probe; an infusion set hub including a cannula; and a flexible base. The analyte sensor and infusion set hub are attached to the flexible base such that movement of one of the analyte sensor and the infusion set hub is substantially not transferred to the other one of the analyte sensor and the infusion set hub.
    Type: Application
    Filed: November 18, 2019
    Publication date: May 20, 2021
    Inventors: Guangping Zhang, Kiem H. Dang, Valerie Chen, Ling Jiang, Evan Anselmo, Zhiwu Fang, Sarnath Chattaraj
  • Patent number: 10828419
    Abstract: An infusion set for use with a fluid infusion device having a fluid reservoir includes a cannula that provides a fluid flow path and a first housing. The first housing includes an articulation member coupled to the cannula. The articulation member is pivotable relative to the first housing to move the cannula relative to the first housing. The first housing is coupled to a fluid supply line to provide a fluid to the cannula, and the fluid supply line is to be coupled to the fluid reservoir to receive the fluid. The infusion set includes a second housing uncoupled from the first housing that surrounds the first housing and receives a portion of the fluid supply line.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: November 10, 2020
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Matthew William Yavorsky, R. Marie Tieck, Dhivya Sridhar, Guangping Zhang