Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2007-06-05
2007-06-05
Cooney, Jr., John M. (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C210S500210, C210S500270, C210S500340, C424S424000, C525S420000, C525S424000, C525S440030, C525S452000, C525S453000, C525S474000, C604S891100
Reexamination Certificate
active
10153356
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.
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McClure Jason D.
Rhodes Rathbun K.
Shults Mark C.
Tapsak Mark A.
Cooney Jr. John M.
DexCom, Inc.
Knobbe Martens Olson & Bear LLP
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