Oxygen enhancing membrane systems for implantable devices

Details Oxygen enhancing membrane systems for implantable devices Oxygen enhancing membrane systems for implantable devices

2008-05-27

2008-05-27

Marmor, II, Charles A. (Department: 3735)

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

C600S347000, C600S365000, C204S403010, C204S403030, C204S403050, C204S403060, C204S415000, C205S778000, C205S793000

Reexamination Certificate

active

10896639

ABSTRACT:
The present invention relates generally to systems and methods for increasing oxygen availability to implantable devices. The preferred embodiments provide a membrane system configured to provide protection of the device from the biological environment and/or a catalyst for enabling an enzymatic reaction, wherein the membrane system includes a polymer formed from a high oxygen soluble material. The high oxygen soluble polymer material is disposed adjacent to an oxygen-utilizing source on the implantable device so as to dynamically retain high oxygen availability to the oxygen-utilizing source during oxygen deficits. Membrane systems of the preferred embodiments are useful for implantable devices with oxygen-utilizing sources and/or that function in low oxygen environments, such as enzyme-based electrochemical sensors and cell transplantation devices.

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