# US 2014/0193894 A1 · Sensor and package > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0193894 A1 - Document ID: US20140193894A1 - Status: Published application - Kind: A1 - Application number: 14/202,843 - Filed: 2014-03-10 - Published: 2014-07-10 - Earliest claimed: 2005-02-01 - Assignees: Bayer HealthCare LLC - Applicants: Bayer Healthcare, LLC - Inventors: Sung-Kwon Jung; Steven C. Charlton; Suny J. George; Andrew J. Dosmann; Karen L. Marfurt - Web page: https://patentgrep.com/patent/US20140193894A1 ## CPC - G01N 33/66: involving blood sugars, e.g. galactose - A61B 5/14532: {for measuring glucose, e.g. by tissue impedance measurement} - A61B 5/1455: using optical sensors, e.g. spectral photometrical oximeters - A61B 5/150022: {for capillary blood or interstitial fluid} - A61B 5/150213: {Venting means} - A61B 5/150274: {Manufacture or production processes or steps for blood sampling devices} - A61B 5/150343: {Collection vessels for collecting blood samples from the skin surface, e.g. test tubes, cuvettes (sampling from within body cavities A61B5/150015, A61B5/150045)} - A61B 5/150358: {Strips for collecting blood, e.g. absorbent} - A61B 5/157: {Devices} characterised by integrated means for measuring characteristics of blood - G01N 21/78: producing a change of colour - G01N 33/521: {Single-layer analytical elements} - G01N 33/528: {Atypical element structures, e.g. gloves, rods, tampons, toilet paper} - A61B 5/1411: {by percutaneous method, e.g. by lancet} - A61B 2562/242: Packaging, i.e. for packaging the sensor or apparatus before use - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A fluid sensor comprises a formed plastic body and a reagent. The body has a top face with an integral first surface. The body also has a bottom face opposed to the first surface and a sidewall that extends from the periphery of the top face. The first surface is adapted to accept a fluid sample. The reagent is disposed on the integral first surface and causes a color change detectable on the bottom face when the reagent reacts with an analyte in the fluid sample. ## Claims ### Claim at position 1 1-58. (canceled) ### Claim 59 A test sensor, comprising: a plastic body having a top portion and a sidewall extending from the periphery of the top portion, the top portion to accept a fluid sample; a reagent disposed on the top portion to cause a detectable color change when the reagent reacts with an analyte in the fluid sample; and a lid coupled to the plastic body, the lid having a first open end and a second closed end. ### Claim 60 (depends on 59) The test sensor of claim 59, wherein the second closed end of the lid forms a barrier to the reagent disposed on the top portion. ### Claim 61 (depends on 60) The test sensor of claim 60, wherein the barrier formed by the lid is an opaque barrier. ### Claim 62 (depends on 61) The test sensor of claim 61, wherein the second closed end of the lid includes a plurality of vent holes formed therein. ### Claim 63 (depends on 59) The test sensor of claim 59, wherein the lid is coupled to the plastic body via sonic welding or an adhesive. ### Claim 64 (depends on 59) The test sensor of claim 59, wherein the lid is coupled to the plastic body via a snap fit connection. ### Claim 65 (depends on 59) The test sensor of claim 59, wherein the lid includes impermeable plastic. ### Claim 66 (depends on 59) The test sensor of claim 59, wherein the lid is attached to the plastic body, thereby forming a capillary chamber between the lid and the top portion. ### Claim 67 (depends on 59) The test sensor of claim 59, wherein the top portion is transparent and the lid is opaque. ### Claim 68 A test sensor, comprising: a plastic body having a top face with an integral first surface, a bottom face with a second surface opposed to the first surface, and a sidewall extending from the periphery of the top face, the integral first surface being configured to accept a fluid sample; a reagent disposed on the integral first surface of the top face, the reagent to cause a detectable color change when the reagent reacts with an analyte in the fluid sample; and a lid coupled to the plastic body such that the lid forms a barrier to the reagent disposed on the integral first surface. ### Claim 69 (depends on 68) The test sensor of claim 68, wherein the barrier formed by the lid is an opaque barrier. ### Claim 70 (depends on 68) The test sensor of claim 68, wherein the lid has a first open end and a second closed end. ### Claim 71 (depends on 70) The test sensor of claim 70, wherein the second closed end of the lid includes a plurality of vent holes formed therein. ### Claim 72 (depends on 68) The test sensor of claim 68, wherein the lid is coupled to the plastic body via sonic welding or an adhesive. ### Claim 73 (depends on 68) The test sensor of claim 68, wherein the lid is coupled to the plastic body via a snap fit connection. ### Claim 74 (depends on 68) The test sensor of claim 68, wherein the sidewall of the plastic body forms a protrusion, the lid including a groove that mates with the protrusion on the sidewall of the plastic body when the lid is coupled to the plastic body. ### Claim 75 (depends on 68) The test sensor of claim 68, wherein the lid includes impermeable plastic. ### Claim 76 (depends on 68) The test sensor of claim 68, wherein the plastic body has a hollow frustum shape with a larger open end and a smaller closed end. ### Claim 77 (depends on 76) The test sensor of claim 76, wherein the lid has a hollow frustum shape with a larger open end and a smaller closed end. ### Claim 78 (depends on 68) The test sensor of claim 68, wherein the lid is a rectangular plastic strip, the lid being coupled to the formed plastic body, thereby forming a plurality of vent openings.