Fluid Sensor and Kit

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.

1 . A fluid sensor comprising:
 a formed plastic body having a top face with an integral first surface, a bottom face opposed to said first surface, and a sidewall extending from the periphery of said top face, said first surface being adapted to accept a fluid sample; and   a reagent being disposed on said integral first surface and adapted to cause a color change detectable on said bottom face when said reagent reacts with an analyte in said fluid sample.   
     
     
         2 . The sensor of  claim 1 , wherein said formed plastic body is a hollow frustum. 
     
     
         3 . The sensor of  claim 1 , wherein said formed plastic body is a hollow frustum with a larger open end and a smaller closed end. 
     
     
         4 . The sensor of  claim 1 , wherein said sidewall has at least one latch. 
     
     
         5 . The sensor of  claim 4 , wherein said at least one latch is an indentation, hole, groove, or emboss. 
     
     
         6 . (canceled) 
     
     
         7 . The sensor of  claim 1 , wherein said color change is measured by a change in reflectance on said bottom face. 
     
     
         8 . The sensor of  claim 7 , wherein said reagent is a glucose dehydrogenase and pyrroloquinoline quinone-based system. 
     
     
         9 . (canceled) 
     
     
         10 . The sensor of  claim 7 , wherein said reagent is a glucose dehydrogenase and diaphorase-based system. 
     
     
         11 . (canceled) 
     
     
         12 . The sensor of  claim 7 , wherein said reagent is a titanium dioxide and polymer matrix. 
     
     
         13 .- 14 . (canceled) 
     
     
         15 . The sensor of  claim 1 , wherein said top face has a raised region substantially surrounding said integral first surface. 
     
     
         16 . The sensor of  claim 15 , further comprising a lid attached to said raised region. 
     
     
         17 .- 18 . (canceled) 
     
     
         19 . The sensor of  claim 16 , wherein said lid is a hollow plastic frustum, having a large open end and a smaller closed end, said smaller closed end having a first surface with a plurality of vent holes. 
     
     
         20 .- 25 . (canceled) 
     
     
         26 . A fluid sensor comprising:
 a formed porous plastic body having a top face with an integral first surface, a bottom face with a second surface opposed to said first surface, and a sidewall adjacent to said top face, wherein said first surface is adapted to accept a fluid sample;   a surfactant disposed on said body; and   a reagent adapted to cause a color change detectable on said second surface when said reagent reacts with an analyte in said fluid sample.   
     
     
         27 . The sensor of  claim 26 , wherein said reagent is disposed on said second surface and said surfactant is applied to said first surface. 
     
     
         28 . The sensor of  claim 26 , wherein said reagent is disposed on said first surface and said surfactant is applied to said second surface. 
     
     
         29 .- 32 . (canceled) 
     
     
         33 . The sensor of  claim 26 , wherein said color change is measured by a change in reflectance on said bottom face. 
     
     
         34 . The sensor of  claim 33 , wherein said reagent is a glucose dehydrogenase and pyrroloquinoline quinone-based system. 
     
     
         35 . (canceled) 
     
     
         36 . The sensor of  claim 33 , wherein said reagent is a glucose dehydrogenase and diaphorase-based system. 
     
     
         37 .- 39 . (canceled) 
     
     
         40 . A blood glucose sensor kit comprising:
 a) a sensor package having:
 i) a base portion having at least one sensor cavity and at least one desiccant cavity in fluid communication with said sensor cavity, 
 ii) a desiccant material disposed within said desiccant cavity, 
 iii) a protective sheet covering said sensor cavity and said desiccant cavity, and 
 iv) a sensor located in said sensor cavity; 
   b) a blood glucose meter having:
 i) a housing, 
 ii) a display disposed on said housing, and 
 iii) a read-head disposed on said housing, said read-head being adapted to detachably engage said sensor; and 
   c) a guide adapted to cover said protective sheet, said guide having at least one opening adapted to align said read-head to engage said sensor within said sensor cavity.   
     
     
         41 .- 47 . (canceled) 
     
     
         48 . A blood glucose sensor kit comprising:
 a) a sensor package having:
 i) a container having an inner surface; 
 ii) a desiccant liner disposed in said container; 
 iii) a friction liner disposed in said container; and 
 iv) at least one sensor located in said container, frictionally engaging said friction liner; and 
   b) a blood glucose meter having:
 i) a housing, 
 ii) a display disposed on said housing, and 
 iii) a read-head disposed on said housing, said read-head being adapted to detachably engage said sensor while said sensor is located in said sensor package. 
   
     
     
         49 .- 58 . (canceled)