Patent · US Active

Zwitterion surface modifications for continuous sensors

US9788765B2 · kind B2 · utility

9Cited by
11References
9Claims
0Family size

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Key dates

Filing dateFeb 27, 2013
Grant dateOct 17, 2017
Priority date
Expiry dateAug 5, 2036

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61B5/1486
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

Devices are provided for measurement of an analyte concentration, e.g., glucose in a host. The device can include a sensor configured to generate a signal associated with a concentration of an analyte; and a sensing membrane located over the sensor. The sensing membrane comprises a diffusion resistance domain configured to control a flux of the analyte therethrough. The diffusion resistance domain comprises one or more zwitterionic compounds and a base polymer comprising both hydrophilic and hydrophobic regions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.