Analyte Monitoring Device and Methods of Use
0 Assignments
0 Petitions
Accused Products
Abstract
An analyte monitor includes a sensor, a sensor control unit, and a display unit. The sensor has, for example, a substrate, a recessed channel formed in the substrate, and conductive material disposed in the recessed channel to form a working electrode. The sensor control unit typically has a housing adapted for placement on skin and is adapted to receive a portion of an electrochemical sensor. The sensor control unit also includes two or more conductive contacts disposed on the housing and configured for coupling to two or more contact pads on the sensor. A transmitter is disposed in the housing and coupled to the plurality of conductive contacts for transmitting data obtained using the sensor. The display unit has a receiver for receiving data transmitted by the transmitter of the sensor control unit and a display coupled to the receiver for displaying an indication of a level of an analyte. The analyte monitor may also be part of a drug delivery system to alter the level of the analyte based on the data obtained using the sensor.
-
Citations
231 Claims
-
1-120. -120. (canceled)
-
121. A continuous glucose sensor, the sensor comprising:
-
a first working electrode comprising a first electroactive surface disposed beneath an active enzymatic portion of a sensor membrane, wherein the first working electrode is configured to generate a first signal having a first noise component related to a noise-causing species; and a second working electrode comprising a second electroactive surface disposed beneath an inactive-enzymatic or a non-enzymatic portion of the sensor membrane, wherein the second working electrode is configured to generate a second signal having a second noise component related to the noise-causing species; wherein the first electroactive surface and the second electroactive surface are each dimensioned to integrate at least one signal generated by a plurality of local point sources that produce the noise-causing species, such that the first noise component and the second noise component are substantially equivalent. - View Dependent Claims (122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139)
-
-
140. A continuous glucose sensor configured for insertion into a host and for detecting glucose in the host, the sensor comprising:
-
a first working electrode comprising a first electroactive surface disposed beneath an active enzymatic portion of a sensor membrane, wherein the first working electrode is configured to generate a first signal having a first noise component related to a noise-causing species; a second working electrode comprising a second electroactive surface disposed beneath an inactive-enzymatic or a non-enzymatic portion of the sensor membrane, wherein the second working electrode is configured to generate a second signal having a second noise component related to the noise-causing species; and a physical diffusion barrier; wherein the first electroactive surface and the second electroactive surface are spaced at a distance that allows noise caused by a local point source that produces noise-causing species to be measured substantially equivalently at the first electroactive surface and the second electroactive surface. - View Dependent Claims (141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162)
-
-
163. A sensor configured and arranged for insertion into a host and for continuously detecting glucose in the host, the sensor comprising:
-
a first working electrode configured to generate a first signal having a first noise component related to a noise-causing species, the first working electrode having a first electroactive surface having a first surface area; and a second working electrode configured to generate a second signal having a second noise component related to the noise-causing species, the second working electrode having a second electroactive surface having a second surface area; wherein the first working electrode and the second working electrode are configured and arranged to integrate the first noise component and the second noise component. - View Dependent Claims (164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187)
-
-
188. A continuous glucose sensor configured and arranged for insertion into a host and for detecting glucose in the host, the sensor comprising:
-
a first working electrode comprising a first electroactive surface disposed beneath an active enzymatic portion of a sensor membrane, wherein the first electroactive surface is configured to measure a measurable species; a second working electrode comprising a second electroactive surface disposed beneath at least one of an inactive enzymatic portion of the sensor membrane and a non-enzymatic portion of the sensor membrane, wherein the second electroactive surface is configured to measure said measurable species, and wherein the first electroactive surface and the second electroactive surface are spaced within a crosstalk distance of the measurable species; and a physical diffusion barrier disposed between the first working electrode and the second working electrode, wherein the physical diffusion barrier is configured and arranged such that there is substantially no signal associated with crosstalk. - View Dependent Claims (189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207)
-
-
208. A continuous glucose sensor configured and arranged for insertion into a host for and detecting glucose in the host, the sensor comprising:
-
a first working electrode comprising a first resistance domain, wherein the first working electrode is configured to generate a first signal having a first noise component related to a noise-causing species; a second working electrode comprising a second resistance domain, wherein the second working electrode is configured to generate a second signal having a second noise component related to the noise-causing species; and a third resistance domain disposed continuously over the first resistance domain and the second resistance domain. - View Dependent Claims (209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231)
-
Specification