BLOOD CONTACTING SENSOR
First Claim
1. An apparatus for detecting an analyte in blood comprising:
- a sensor that detects the presence of an analyte, wherein the sensor comprises;
a base layer;
at least three electrodes disposed on the base layer including at least one working electrode;
an enzyme layer disposed upon the working electrode;
an analyte modulating layer disposed on the enzyme layer; and
an assembly having a sensor end and an exterior face, wherein the sensor is affixed to the sensor end of the assembly, and the assembly is adapted for coupling with a venous flow device.
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Accused Products
Abstract
The invention provides methods and apparatus for detecting an analyte in blood. The apparatus is particularly suited for bringing a sensor into direct contact with blood in vivo. The apparatus comprises a sensor that detects the presence of an analyte and an assembly means. The assembly means has a sensor end, wherein the sensor end of the assembly means is affixed to the sensor, and the assembly means is adapted for coupling with a venous flow device. By coupling with a venous flow device, the assembly means brings the sensor into direct contact with blood flowing through the venous flow device. Examples of venous flow devices that bring the sensor into direct contact with the blood of a subject include, but are not limited to, intravenous catheters and external blood loops, such as are used in extra corporeal membrane oxygenation or hemodialysis.
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Citations
20 Claims
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1. An apparatus for detecting an analyte in blood comprising:
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a sensor that detects the presence of an analyte, wherein the sensor comprises; a base layer; at least three electrodes disposed on the base layer including at least one working electrode; an enzyme layer disposed upon the working electrode; an analyte modulating layer disposed on the enzyme layer; and an assembly having a sensor end and an exterior face, wherein the sensor is affixed to the sensor end of the assembly, and the assembly is adapted for coupling with a venous flow device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of introducing a sensor into circulating blood of a subject and monitoring the concentration of an analyte, the method comprising:
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contacting a venous flow device with the circulating blood of the subject and introducing an apparatus for detecting an analyte in blood into the venous flow device, the apparatus comprising; a sensor that detects the presence of an analyte, wherein the sensor comprises; a base layer; at least three electrodes disposed on the base layer including at least one working electrode; an enzyme layer disposed upon the working electrode; an analyte modulating layer disposed on the enzyme layer; and an assembly having a sensor end and an exterior face, wherein the sensor is affixed to the sensor end of the assembly. - View Dependent Claims (17, 18, 19, 20)
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Specification