LANCET ANALYTE SENSORS AND METHODS OF MANUFACTURING
In some aspects, an analyte sensor is provided for obtaining and detecting an analyte concentration level in a bio-fluid sample. The analyte sensor has a sensor body including a semiconductor material, an active region coupled to the sensor body, and a lancet provided on the analyte sensor. The conductor may include a fiber having a core of a conductive material and a semiconductor cladding surrounding the core. Numerous other aspects are provided.
1 . An analyte sensor, comprising:
a cylindrical sensor body;
an active region positioned within the cylindrical sensor body, the active region configured to determine an analyte concentration level; and
a fluid electrolyte in contact with at least a portion of the cylindrical sensor body.
2 . The analyte sensor of claim 1 , wherein the sensor body comprises a core comprising a conductive material and a cladding surrounding the core comprising a semiconductor material.
3 . The analyte sensor of claim 1 , further comprising a lancet positioned at an end of the cylindrical sensor body.
4 . The analyte sensor of claim 3 , wherein the lancet is formed by a cleaved surface at the end of the cylindrical sensor body.
5 . The analyte sensor of claim 3 , wherein the lancet comprises a separate lancet member coupled to the end of the cylindrical sensor body.
6 . The analyte sensor of claim 1 , wherein the cylindrical sensor body has a cavity extending from an end of the cylindrical sensor body, the active region positioned at a bottom of the cavity.
7 . The analyte sensor of claim 1 , further comprising a reference electrode, wherein the reference electrode is coupled to the fluid electrolyte.
8 . The analyte sensor of claim 1 , wherein the cylindrical sensor body has a conduit and the active region is fluidly coupled to the fluid electrolyte via the conduit.
9 . The analyte sensor of claim 1 , wherein the cylindrical sensor body is configured to extend and retract within a port in a housing.
10 . An analyte sensor comprising:
a cylindrical sensor body;
an active region positioned within the cylindrical sensor body, the active region configured to determine an analyte concentration level; and
a reference electrode coupled to the cylindrical sensor body, wherein the reference electrode comprises a coil, foil, or film.
11 . The analyte sensor of claim 10 , further comprising a lancet positioned at an end of the cylindrical sensor body.
12 . The analyte sensor of claim 10 , further comprising a sealing material that surrounds the reference electrode and at least a portion of the cylindrical sensor body.
13 . The analyte sensor of claim 10 , wherein the cylindrical sensor body comprises:
a core comprised of a conductive material;
a cladding comprised of a semiconductor material surrounding the core; and
a cavity formed proximate to the core; wherein:
the active region is positioned within the cavity.
14 . An analyte sensor comprising:
a cylindrical sensor body having a cavity therein;
an active region positioned within the cavity, the active region configured to determine an analyte concentration level; and
a reference electrode positioned within the cavity.
15 . The analyte sensor of claim 14 , wherein a distance separates the reference electrode from the active region in the cavity.
16 . The analyte sensor of claim 14 , further comprising a lancet positioned at an end of the cylindrical sensor body.
17 . The analyte sensor of claim 14 , wherein the cavity includes a pocket formed into a core of the cylindrical sensor body and the active region is applied in the pocket.
18 . An analyte sensor comprising:
a cylindrical sensor body comprising:
a core comprised of a conductive material;
a cladding comprised of a semiconductor material; and
a cavity in the core extending from an end of the cylindrical sensor body;
an active region positioned at a bottom of the cavity, the active region configured to determine an analyte concentration level; and
a lancet positioned at the end of the cylindrical sensor body.
19 . The analyte sensor of claim 18 , further comprising a first electrode in electrical contact with the active area and the core.
20 . The analyte sensor of claim 19 , further comprising:
an insulating layer surrounding the cladding; and
a reference electrode at least partially surrounding the insulating layer.