Glenn Noronha - Oceanside CA, US Jonathan Reilly - Reseda CA, US Joseph C. Walsh - Los Angeles CA, US Brooks Cochran - Northridge CA, US Aaron M. Heiss - Orange OH, US Bill C. Ponder - Fort Worth TX, US David J. Vachon - Granada Hills CA, US
Assignee:
Medtronic MiniMed, Inc. - Northridge CA
International Classification:
C08K005/55
US Classification:
524184, 525259, 436 95
Abstract:
Improved polymer matrices which incorporate fluorescent biosensor molecules as well as methods of making and using these polymer matrices are described. Such matrices can be used in fluorescent biosensors and biosensor systems, including those which are used in the detection of polyhydroxylated analytes such as glucose. The properties of the polymer matrices of the invention renders biosensors utilizing such matrices particularly well-suited for detecting and measuring in-vivo glucose concentrations.
Hydrophilic Polymeric Material For Coating Biosensors
David Vachon - Granada Hills CA, US Brooks Cochran - Sylmar CA, US Bill Ponder - Valencia CA, US
International Classification:
C12Q001/54 C08G077/32 C08G077/388
US Classification:
435/014000, 525/054100
Abstract:
Disclosed is a biocompatible membrane comprising a hydrophilic polyurea composition. The hydrophilic polyutea composition comprises the product of a reaction mixture comprising (a) an amino terminated polysiloxane, (b) a hydrophilic polymer selected from the group consisting of a diamino terminated copolymer of polypropylene glycol and polyethylene glycol, polyethylene glycol, polypropylene glycol and diamino polyethylene glycol having an average molecular weight of from about 400 to about 2000, and (c) a diisocyanate selected from the group consisting of hexamethylene-1,6-diisocyanate, dicyclohexylmethane 4,4′-diisocyanate, and isophorone diisocyanate, and constituting about 50 mole % of the reaction mixture. In this mixture, (a) and (b) constitute a polymeric portion of the reaction mixture, and the hydrophilic polyurea composition has a ratio of its diffusion coefficient for oxygen to its diffusion coefficient for glucose of from about 2,000 to about 10,000. Also provided are biosensors coated with a membrane of the invention, and methods of using such biosensors to measure an analyte in a tissue of a subject.
Analyte Sensors And Methods For Making And Using Them
Yunbing Wang - Sunnyvale CA, US Udo Hoss - Sherman Oaks CA, US Rajiv Shah - Rancho Palos Verdes CA, US William P. Van Antwerp - Valencia CA, US Brooks B. Cochran - Northridge CA, US
International Classification:
G01N 33/48 A61B 5/05 C08G 77/04
US Classification:
436 63, 295921, 422 61, 528 25, 600347
Abstract:
Embodiments of the invention provide analyte sensors having elements designed to modulate their chemical reactions as well as methods for making and using such sensors. In certain embodiments of the invention, the sensor includes a hydrophilic comb-copolymer having a central chain and a plurality of side chains coupled to the central chain, wherein at least one side chain comprises a silicone moiety.
Analyte Sensors Comprising Blended Membrane Compositions And Methods For Making And Using Them
Embodiments of the invention provide analyte sensors having elements designed to modulate their chemical reactions as well as methods for making and using such sensors. In certain embodiments of the invention, the sensor includes an analyte modulating membrane that comprises a blended mixture of a linear polyurethane/polyurea polymer, and a branched acrylate polymer.
Stabilized Polymers For Use With Analyte Sensors And Methods For Making And Using Them
Brooks B. Cochran - Northridge CA, US Tri T. Dang - Winnetka CA, US Rajiv Shah - Rancho Palos Verdes CA, US
Assignee:
MEDTRONIC MINIMED, INC. - Northridge CA
International Classification:
A61B 5/1477 C08G 77/388 A61K 49/00
US Classification:
600347, 424 91, 525474
Abstract:
Embodiments of the invention provide analyte sensors having elements designed to modulate their chemical reactions as well as methods for making and using such sensors. In certain embodiments of the invention, the sensor includes an analyte modulating membrane that comprises a linear polyurethane/polyurea polymer comprising one or more agents selected for their ability to stabilize the polymers against thermal and/or oxidative degradation.
Apr 2013 to 2000 Senior Scientist(Contractor)Medtronic, Inc Northridge, CA Aug 2004 to Jan 2013 Senior ScientistMedtronic, Inc Northridge, CA Nov 1998 to Aug 2004 ScientistStormedia Santa Clara, CA Jan 1997 to Nov 1998 Lubrication Engineer
Education:
Utah State University Logan, UT 1996 M.S. in Organic ChemistryUniversity of Nevada Reno, NV 1990 B.S. in Chemistry
Medtronic Northridge, CA 2004 to 2013 Senior ScientistMedtronic Northridge, CA 1999 to 2004 ScientistStormedia Santa Clara, CA 1997 to 1999 Lubrication Engineer
Education:
Utah State University Logan, UT 1996 M.S. in Organic ChemistryUniversity of Nevada Reno, NV 1990 B.S. in Chemistry
Skills:
Skills Instrumentation: Includes GPC, HPLC, FTIR, NMR, UV-Vis, DSC, TGA, Karl Fischer Wet Chemistry: Includes organic synthesis, polymerization, purification, chromatography, viscometry, titration Strong writing, communication, and computer skills (Word, Excel, Powerpoint, SAP)