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EP0254203A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Optical analyzer

Assignee: Personal Diagnostics Inc
•
Filing: 1987-07-16
•
Granted: —
•
Expires: 2007-07-16
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Abstract

Abstract An optical analyzer for determining an analyte in a fluid of interest such as a body fluid of interest satisfying the foregoing need and embodying the present invention may include a housing (12); combination optically transparent cuvette and lancet (16) mounted removably in the housing (12), the cuvette (17) may receive an optically transparent reagent test system for reacting with the body fluid to produce a change in at least one optical transmissive characteristic of the system indicative of the analyte; a cuvette carrier (14) mounted slidably in the housing and for removably receiving the cuvette (17); a spring actuator (40) mounted in the housing and connected to the cuvette carrier (14), the spring actuator may be compressed and released to advance the carrier and thereby advance the lancet (16) into engagement with a portion of a body to produce the body fluid, and the spring actuator (40) retract the lancet (16) within the housing (12) after the advancement; depth control apparatus (70, 72) for controlling the depth of penetration of the lancet into the body portion; an electro-optical system (34, 36, 38) mounted in the housing in optical engagement with the cuvette (17) and for passing a light beam through the cuvette and the reagent system and for receiving the light beam modified by the change in optical transmissive characteristic of the system and for transmitting computation signals indicative of the analyte to a computer (22); a computer mounted in the housing for receiving the computation signals and for comparing the computation signals against predetermined data to produce display signals indicative of the analyte; a display (24) mounted in the housing and for receiving the display signals and for providing a visible display indicative of the analyte; and control switches (26) mounted in the housing and connected to the computer (22) for controlling the operation of the computer (22).

Inventors

  • 👤 Peter M. Meserol
  • 👤 Thomas Palmieri

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-23 18:03
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/14532; A61B5/1455; A61B5/15; A61B5/157; G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/251; A61B5/151; A61B5/15186; G01N21/01; G01N21/03; G01N2021/0367; G01N2021/0371; G01N21/75; G01N21/77; G01N21/78; G01N2201/00; G01N2201/12; G01N2201/122; G01N2201/126

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 325 words
Optical analyzer (10) for determining an analyte in a body fluid of interest, comprising: housing means (12); a combination optically transparent cuvette and lancet (16) mounted removably in said housing means (12), said cuvette (17) for receiving an optically transparent reagent test system for reacting with said body fluid to produce a change in at least one optical transmissive characteristic of said system indicative of said analyte; cuvette carrier means (14) mounted slidably in said housing means (12) and for receiving said cuvette (17); spring means (40) mounted in said housing (12) and connected to said cuvette carrier means (14), said spring means (40) for being compressed and released to advance said carrier (14) and thereby advance said lancet (16) into engagement with a portion of a body to produce said body fluid, and said spring means (40) for retracting said lancet (16) within said housing (12) after said advancement; depth control means (70, 72) for controlling the depth of penetration of said lancet (16) into said body portion; electro-optical means (34, 36, 38) mounted in said housing (12) means in optical engagement with said cuvette (17) and for passing a light beam through said cuvette (17) and said reagent system and for receiving said light beam modified by said change in optical transmissive characteristic of said system and for producing computation signals from said received modified light beam indicative of said analyte and for transmitting said computation signals to computation means (22); computation means (22) mounted in said housing means (12) for receiving said computation signals and for comparing said computation signals against predetermined data to produce display signals indicative of said analyte; display means (24) mounted in said housing means (12) and for receiving said display signals and for providing a visible display indicative of said analyte; and control means (26) mounted in said housing means (12) and connected to said computation means (22) for controlling the operation of said computation means (22).
Claim 2
Dependent Claim 325 words
Optical analyzer (10) for determining an analyte in a body fluid of interest, comprising: housing means (12); a combination optically transparent cuvette and lancet (16) mounted removably in said housing means (12), said cuvette (17) for receiving an optically transparent reagent test system for reacting with said body fluid to produce a change in at least one optical transmissive characteristic of said system indicative of said analyte; cuvette carrier means (14) mounted slidably in said housing means (12) and for receiving said cuvette (17); spring means (40) mounted in said housing (12) and connected to said cuvette carrier means (14), said spring means (40) for being compressed and released to advance said carrier (14) and thereby advance said lancet (16) into engagement with a portion of a body to produce said body fluid, and said spring means (40) for retracting said lancet (16) within said housing (12) after said advancement; depth control means (70, 72) for controlling the depth of penetration of said lancet (16) into said body portion; electro-optical means (34, 36, 38) mounted in said housing (12) means in optical engagement with said cuvette (17) and for passing a light beam through said cuvette (17) and said reagent system and for receiving said light beam modified by said change in optical transmissive characteristic of said system and for producing computation signals from said received modified light beam indicative of said analyte and for transmitting said computation signals to computation means (22); computation means (22) mounted in said housing means (12) for receiving said computation signals and for comparing said computation signals against predetermined data to produce display signals indicative of said analyte; display means (24) mounted in said housing means (12) and for receiving said display signals and for providing a visible display indicative of said analyte; and control means (26) mounted in said housing means (12) and connected to said computation means (22) for controlling the operation of said computation means (22).
Claim 3
Dependent Claim 28 words
Optical analyzer (10) according to Claim 1 wherein said control means (26) is also for operating said computation means (22) to recall and display previously stored analyte determination.
Claim 4
Dependent Claim 87 words
Optical analyzer according to Claim 1 wherein said reagent test system reacts with said body fluid at a rate of reaction, wherein said corresponding change in at least one optical transmissive characteristic has a rate of change, wherein said light beam is modified at a rate of modification, and wherein said computation means (22) determine the rate of change of said reaction from said received computation signals and compares the same against stored rates of change to determine said analyte and produce said display signals indicative thereof.

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