Enhanced sensor for a continuous biological monitor
AssigneeZense-Life Inc.
InventorsRobert James Boock, Huashi Zhang
Life of this patent
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Abstract
Briefly, a sensor for a continuous biological monitor is provided for measuring the level of a target analyte for a patient. The sensor has a working wire and a reference wire, where the working wire has an analyte limiting layer that passes more than 1 in 1000 analyte molecules from the patient to the an enzyme layer. The enzyme layer has an enzyme entrapped in a polyurethane cross-linked with acrylic polyol. As free electrons are generated, a conductor transfers the electrons to the biological monitor. In some cases, the sensor may be constructed without the use of any expensive platinum.
Claims26
A sensor for a continuous glucose monitor that is subcutaneously inserted into a patient, comprising:
- a reference electrode;
- a working electrode comprising:
- a glucose limiting layer having a hydrophobic bonding material and a hydrophilic bonding material that are physically cross-linked;
- an enzyme layer comprising glucose oxidase entrapped within a polyurethane cross-linked with a self cross-linking acrylic polyol, the glucose oxidase reacting with glucose in blood of the patient generating peroxide and free electrons in proportion to a glucose level in the blood of the patient;
- a conductor configured to pass the free electrons to the continuous glucose monitor for measurement;
- and
- a substrate.
A sensor for a continuous biological monitor that is subcutaneously inserted into a patient, comprising:
- a reference electrode;
- a working electrode comprising:
- a target-analyte limiting layer having a hydrophobic bonding material and a hydrophilic bonding material that are physically cross-linked;
- an enzyme layer comprising an enzyme entrapped within a polyurethane cross-linked with a self cross-linking acrylic polyol, the enzyme reacting with glucose in blood of the patient generating peroxide and free electrons in proportion to a glucose level in the blood of the patient;
- a conductor configured to pass the free electrons to the continuous biological monitor for measurement;
- and
- a substrate.
Dependencies are inferred from the claim text.