KR101861993B1 - 커패시턴스를 사용하여 대조 시료와 시험 유체를 식별하는 시스템 및 방법 - Google Patents
커패시턴스를 사용하여 대조 시료와 시험 유체를 식별하는 시스템 및 방법 Download PDFInfo
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Abstract
Description
도 1a는 예시적 테스트 스트립의 투시도이고;
도 1b는 도 1a의 테스트 스트립의 분해 투시도이고;
도 1c는 도 1a의 테스트 스트립의 원위부의 투시도이고;
도 2는 도 1a의 테스트 스트립의 하면도이고;
도 3은 도 1a의 테스트 스트립의 측면도이고;
도 4a는 도 1a의 테스트 스트립의 상면도이고;
도 4b는 도 4a의 화살표 4B-4B와 일치하는 당해 테스트 스트립의 원위부의 부분 측면도이고;
도 5는 테스트 스트립 접촉 패드들과 전기적으로 인터페이싱(interfacing)하는 테스트 미터를 도시한 개략도이고;
도 6은 당해 테스트 미터가 규정된 시간 간격 동안 복수 개의 시험 전압을 인가시킨 시험 전압 파형을 도시한 것이고;
도 7은 도 6의 시험 전압 파형과 함께 발생한 시험 과도 전류를 도시한 것이고;
도 8a는 도 6과 비교하여, 당해 테스트 미터가 규정된 시간 간격 동안 반대되는 극성으로 복수 개의 시험 전압을 인가시킨 시험 전압 파형을 예시한 것이고;
도 8b는 도 8a의 시험 전압과 함께 발생한 시험 과도 전류를 예시한 것이고;
도 9는 복수 개의 혈액 시료들(마름모형) 및 대조 용액 시료들(사각형)에 대한 간섭 지수(interferent index)와 잔여 반응 지수의 상관관계를 도시한 차트이고;
도 10은 복수 개의 혈액 시료들(마름모형) 및 대조 용액 시료들(사각형)에 대해, 커패시턴스 지수를 곱한 간섭 지수를 X축에 도시하고 잔여 반응 지수를 Y축에 도시한 차트이다.
Claims (29)
- 혈액 시료와 수성 비-혈액 시료를 구별하기 위한 방법으로서, 상기 방법은,
(a) 전기화학 셀(electrochemical cell)에 시료를 도입할 때 제1 전극과 제2 전극 사이에 제1 시험 전위를 인가하여, 제1 과도 전류(current transient)를 측정하는 단계;
(b) 제1 전극과 제2 전극 사이에 환원된 매개체를 상기 제2 전극에서 산화시키기에 충분한 제2 시험 전위를 인가하여, 제2 과도 전류를 측정하는 단계;
(c) 상기 전기화학 셀의 커패시턴스를 측정하는 단계;
(d) 제1 전극과 제2 전극 사이에 환원된 매개체를 상기 제1 전극에서 산화시키기에 충분한 제3 시험 전위를 인가하여, 제3 과도 전류를 측정하는 단계;
(e) 상기 제1 과도 전류에 기초하여, 제1 참조 값을 산출하는 단계;
(f) 상기 제2 과도 전류 및 상기 제3 과도 전류에 기초하여 제2 참조 값을 산출하는 단계;
(g) 적어도 상기 측정된 커패시턴스에 기초하여, 커패시턴스 지수(capacitance index)를 산출하는 단계;
(h) 상기 제1 참조 값 및 상기 커패시턴스 지수에 기초하여 제3 참조 값을 산출하는 단계;
(i) 상기 제2 참조 값 및 상기 제3 참조 값에 기초하여, 상기 시료가 혈액 시료인지 수성 비-혈액 시료인지를 결정하는 단계를 포함하는, 방법. - 제1항에 있어서, 상기 커패시턴스 지수가 상기 전기화학 셀의 상기 측정된 커패시턴스에 비례하는, 방법.
- 제2항에 있어서, 상기 커패시턴스 지수가 동일 타입의 전기화학 셀들의 평균 커패시턴스와 상기 전기화학 셀의 상기 측정된 커패시턴스의 비인, 방법.
- 제1항에 있어서, 상기 제1 참조 값이 상기 제1 과도 전류로부터의 적어도 하나의 전류 값에 기초하여 산출되는, 방법.
- 제1항에 있어서, 상기 제1 참조 값이 상기 제1 과도 전류 동안에 측정된 전류 값들의 합산에 기초하여 산출되는, 방법.
- 제1항에 있어서, 상기 제2 참조 값이 화학 반응의 완료율에 기초하는, 방법.
- 제1항에 있어서, 상기 제2 참조 값이 상기 제2 과도 전류로부터의 적어도 하나의 전류 값 및 상기 제3 과도 전류로부터의 적어도 하나의 전류 값에 기초하는, 방법.
- 제1항에 있어서, 상기 제2 참조 값이 상기 제2 과도 전류 종결 무렵의 제2 전류 값 및 상기 제3 과도 전류 시작 무렵의 제3 전류 값에 기초하는, 방법.
- 제9항에 있어서, 상기 제2 참조 값이 상기 제2 전류 값과 상기 제3 전류 값의 비에 기초하는, 방법.
- 제1항에 있어서, 분석물의 농도를 측정하는 단계를 추가로 포함하는, 방법.
- 제11항에 있어서, 상기 시료가 수성 비-혈액 시료인 것으로 밝혀지는 경우, 상기 수성 비-혈액 시료와 관련된 상기 분석물 농도가 플래깅(flagging)되는, 방법.
- 제1항에 있어서, 단계 (i)가, 상기 시료가 수성 비-혈액 시료인지 혈액 시료인지를 결정하기 위해 2개의 부등식(inequality)들을 사용함을 추가로 포함하는, 방법.
- 제1항에 있어서, 단계 (i)가,
상기 제2 참조 값을 사전 결정된 임계 등식(pre-determined threshold equation)에 비교하고;
상기 제3 참조 값을 사전 결정된 임계값과 비교하여 상기 시료가 수성 비-혈액 시료인지 혈액 시료인지를 결정하는 단계를 추가로 포함하는, 방법. - 제14항에 있어서, 상기 사전 결정된 임계 등식이 상기 제3 참조 값의 함수인, 방법.
- 제1항에 있어서, 상기 수성 비-혈액 시료가 대조 시료를 포함하는, 방법.
- 혈액 시료와 수성 비-혈액 시료를 구별하기 위한 시스템으로서, 상기 시스템은,
(a) 테스트 미터 및 전기화학 셀의 결합(mating)을 위한 전기 접촉부들을 포함하는 테스트 스트립(test strip)으로서, 상기 전기화학 셀은,
(i) 서로 떨어져 있는 제1 전극과 제2 전극 및
(ii) 시약을 포함하는, 테스트 스트립; 및
(b) 상기 테스트 스트립으로부터의 전류 데이터를 수용하도록 조정된 프로세서를 포함하는 테스트 미터(test meter), 및 제1 참조 값, 제2 참조 값, 및 커패시턴스 지수를 기초로 하여 혈액 시료를 수성 비-혈액 시료로부터 구별해낼 수 있도록 하는 식별 기준이 포함된 데이터 저장부를 포함하고, 상기 커패시턴스 지수는 동일 타입의 전기화학 셀들의 평균 커패시턴스와 상기 전기화학 셀의 측정된 커패시턴스의 비를 포함하는, 시스템. - 제17항에 있어서, 상기 식별 기준이, 산화방지제 농도를 나타내는 제1 참조 값, 및 반응 동력학(reaction kinetics)을 나타내는 제2 참조 값으로부터 유래되는, 시스템.
- 제17항에 있어서, 상기 식별 기준이, 실험에 의해 유래된 식별선(discrimination line)을 포함하는, 시스템.
- 삭제
- 제17항에 있어서, 상기 수성 비-혈액 시료가 대조 용액인, 시스템.
- 혈액 시료와 수성 비-혈액 시료를 구별하기 위한 테스트 미터에 프로그래밍하기 위한 식별 기준을 산출하는 방법으로서, 상기 방법은,
(a) 복수 개의 수성 비-혈액 시료들에 대한 제1 참조 값 및 제2 참조 값을 산출하는 단계;
(b) 상기 제1 참조 값에 기초하여, 커패시턴스 지수에 비례하는 제3 참조 값을 산출하는 단계;
(c) 상기 복수 개의 수성 비-혈액 시료들에 대한 상기 제2 참조 값 및 상기 제3 참조 값에 기초하여 식별 기준을 산출하는 단계를 포함하는, 방법. - 제22항에 있어서, 상기 제1 참조 값이 산화방지제 농도를 나타내고 상기 제2 참조 값이 반응 동력학을 나타내는, 방법.
- 제22항에 있어서, 상기 커패시턴스 지수가, 동일 타입의 전기화학 셀들의 평균 커패시턴스와 시료 도입시 상기 전기화학 셀의 측정된 커패시턴스의 비를 포함하는, 방법.
- 제22항에 있어서, 상기 복수 개의 수성 비-혈액 시료들이 복수 개의 대조 용액들을 포함하는, 방법.
- 혈액 시료와 수성 비-혈액 시료를 구별하기 위한 방법으로서, 상기 방법은,
(a) 전기화학 셀에 시료를 도입하는 단계로서, 상기 전기화학 셀은,
(i) 서로 떨어져 있는 2개의 전극 및
(ii) 시약을 포함하는, 단계;
(b) 제1 극성을 갖는 제1 시험 전위를 상기 전극들 사이에 인가하여, 셀 전류를 측정하는 단계;
(c) 상기 전기화학 셀의 커패시턴스를 측정하는 단계;
(d) 상기 제1 시험 전위 동안에 측정된 적어도 2개의 전류 값들을 합산하여 제1 참조 값을 생성하는 단계;
(e) 상기 측정된 커패시턴스와 관련된 커패시턴스 지수를 산출하는 단계;
(f) 상기 커패시턴스 지수 및 상기 제1 참조 값을 사용하여 혈액 시료와 수성 비-혈액 시료를 구별하는 단계를 포함하는, 방법. - 제26항에 있어서, 반응 동력학에 관련된 제2 참조 값을 산출하는 단계; 상기 커패시턴스 지수, 상기 제1 참조 값 및 상기 제2 참조 값을 사용하여 혈액 시료와 수성 비-혈액 시료를 구별하는 단계를 추가로 포함하는, 방법.
- 제26항에 있어서, 상기 수성 비-혈액 시료가 대조 용액을 포함하는, 방법.
- 제26항에 있어서, 상기 커패시턴스 지수가 동일 타입의 전기화학 셀들의 평균 커패시턴스와 상기 전기화학 셀의 측정된 커패시턴스의 비를 포함하는, 방법.
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JP2009294213A (ja) | 2008-06-09 | 2009-12-17 | Lifescan Inc | サンプル中の検体濃度を測定するためのシステム及び方法 |
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KR20130122738A (ko) | 2013-11-08 |
AU2011309764B2 (en) | 2014-01-09 |
CN103250050B (zh) | 2015-12-16 |
US10151724B2 (en) | 2018-12-11 |
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US9575027B2 (en) | 2017-02-21 |
RU2013119959A (ru) | 2014-11-10 |
US20140151244A1 (en) | 2014-06-05 |
WO2012042373A1 (en) | 2012-04-05 |
EP2622336A1 (en) | 2013-08-07 |
ES2937949T3 (es) | 2023-04-03 |
ES2740839T3 (es) | 2020-02-06 |
US20120080323A1 (en) | 2012-04-05 |
BR112013007679A2 (pt) | 2016-08-09 |
US9575026B2 (en) | 2017-02-21 |
JP2013539035A (ja) | 2013-10-17 |
AU2011309764A1 (en) | 2013-04-11 |
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