Temperature-insensitive membrane materials and analyte sensors containing the same

US11667758B2 · kind B2 · utility

Assignee

• ABBOTT DIABETES CARE INC. · US

Inventors

• Balasubrahmanya S. Bommakanti · Pleasanton, US
• John V. LaTour · Alameda, US
• Udo Hoss · Ulm, DE
• Tianmei Ouyang · Alameda, US
• Phu X. Le · Dublin, US
• Gary Sandhu · Fairfield, US
• Kevin P. Wallis · Alameda, US

Key dates

• Filing date: Jun 11, 2019
• Grant date: Jun 6, 2023
• Expiry date: Jan 4, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2339/08
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Membranes permeable to an analyte may overlay the active sensing region of a sensor to limit the analyte flux and improve the response linearity of the sensor. Temperature variation of the analyte permeability can be problematic in some instances. Polymeric membrane compositions having limited variation in analyte permeability as a function of temperature may comprise: a polymer backbone comprising one or more side chains that comprise a heterocycle; and an amine-free polyether arm appended, via an alkyl spacer or a hydroxy-functionalized alkyl spacer, to the heterocycle of at least a portion of the one or more side chains.