로그인시 본인확인과정이 필요할 수 있습니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기
| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0154941 (1988-02-11) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 377 인용 특허 : 0 |
A method for determining the presence of an analyte in a fluid is described along with various components of an apparatus specifically designed to carry out the method. The method involves taking a reflectance reading from one surface of an inert porous matrix impregnated with a reagent that will in
A method for determining the presence of an analyte in a fluid is described along with various components of an apparatus specifically designed to carry out the method. The method involves taking a reflectance reading from one surface of an inert porous matrix impregnated with a reagent that will interact with the analyte to produce a light-absorbing reaction product when the fluid being analyzed is applied to another surface and migrates through the matrix to the surface being read. Reflectance measurements are made at two separate wavelengths in order to eliminate interferences, and a timing circuit is triggered by an initial decrease in reflectance by the wetting of the surface whose reflectance is being measured by the fluid which passes through the inert matrix. The method and apparatus are particularly suitable for the measurement of glucose levels in blood without requiring separation of red blood cells from serum or plasma.
An apparatus for measuring reflectance from a porous matrix containing a reagent that reacts with an analyte suspected of being present in a liquid sample applied to a surface in said porous matrix, where said sample can migrate through said porous matrix and react with said reagent if said analyte
An apparatus for measuring reflectance from a porous matrix containing a reagent that reacts with an analyte suspected of being present in a liquid sample applied to a surface in said porous matrix, where said sample can migrate through said porous matrix and react with said reagent if said analyte is present in said sample, which comprises: a housing; an internal chamber in said housing; means for accessing said internal chamber, whereby said porous matrix can be inserted in or removed from said internal chamber through said means for accessing; means for excluding external light from entering said internal chamber through said means for accessing; means for retaining said porous matrix in said internal chamber, wherein said porous matrix is retained with a first surface accessable for applying said liquid sample through said means for accessing; means for illuminating a second surface of said porous matrix when said porous matrix is retained in said internal chamber, wherein said second surface is different from said first surface; means for detecting intensity of light reflected from said second surface of said porous matrix when said porous matrix is retained in said internal chamber and illuminated by said means for illuminating, wherein said means for detecting produces an output related to said intensity, said means for detecting intensity being adapted to provide a series of outputs; control means for processing said outputs, said control means including means for comparing outputs in said series and determining whether said outputs decrease by a predetermined difference sufficient to indicate that said sample of body fluid has reached said second surface, wherein said predetermined decrease in outputs causes said control means to initiate a timing period which results in a measurement reading being taken from said surface at a predetermined time after said second timing period is initiated without having determined the time at which said sample of body fluid was initially applied to said porous matrix; and means for reporting said measurement reading.
Copyright KISTI. All Rights Reserved.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.