Techniques to improve polyurethane membranes for implantable glucose sensors
US7226978B2 · kind B2 · utility
999Cited by
201References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2002 |
| Grant date | Jun 5, 2007 |
| Priority date | — |
| Expiry date | May 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31551
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides an implantable membrane for regulating the transport of analytes therethrough that includes a matrix including a first polymer; and a second polymer dispersed throughout the matrix, wherein the second polymer forms a network of microdomains which when hydrated are not observable using photomicroscopy at 400× magnification or less. In one aspect, the homogeneous membrane of the present invention has hydrophilic domains dispersed substantially throughout a hydrophobic matrix to provide an optimum balance between oxygen and glucose transport to an electrochemical glucose sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.