KR101736651B1 - 전기화학적 분석물질 측정에서 회복 펄스로부터 정보를 이용하는 방법들 뿐만 아니라 이를 통합한 기기들, 장치들 및 시스템들 - Google Patents
전기화학적 분석물질 측정에서 회복 펄스로부터 정보를 이용하는 방법들 뿐만 아니라 이를 통합한 기기들, 장치들 및 시스템들 Download PDFInfo
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Abstract
Description
도 2a 및 도 2b 는 분석물질 측정 기기, 장치 또는 시스템에 의해 이용될 수 있는 예시적 테스트 시퀀스들을 도시한다.
도 3 은 분석물질 측정 기기, 장치 또는 시스템에 의해 이용될 수 있는 다른 예시적 테스트 시퀀스를 도시한다.
도 4 는 실제 어드미턴스 값들 (y-축선) 대 PLS 모델에 대한 예측된 어드미턴스 값들 (x-축선) 을 도시한 그래프이다.
도 5 는 목표 포도당 레벨에 의해 색칠된 복수의 공변량 데이터세트 관찰물들에 대한 DC 전류 응답들을 도시한 그래프이고, y-축선은 전류 응답 (단위; nA) 이고, x-축선은 시계열로 DC 전류 값의 수이고, 원으로 나타낸 DC 전류들은 최고 VIP 스코어들을 갖는 X-변수들에 대응한다.
도 6 은 실제 어드미턴스 값들 (y-축선) 대 다른 PLS 모델에 대한 예측된 어드미턴스 값들 (x-축선) 을 도시한 그래프이다.
도 7 은 목표 포도당 레벨에 의해 색칠된 복수의 공변량 데이터세트 관찰물들에 대한 DC 전류 응답들을 도시한 그래프이고, y-축선은 전류 응답 (단위; nA) 이고, x-축선은 시계열로 DC 전류 값의 수이고, 원으로 나타낸 DC 전류들은 최고 VIP 스코어들을 갖는 X-변수들에 대응한다.
도 8 은 실제 어드미턴스 값들 (y-축선) 대 다른 PLS 모델에 대한 예측된 어드미턴스 값들 (x-축선) 을 도시한 그래프이다.
도 9 는 목표 포도당 레벨에 의해 색칠된 복수의 공변량 데이터세트 관찰물들에 대한 DC 전류 응답들을 도시한 그래프이고, y-축선은 전류 응답 (단위; nA) 이고, x-축선은 시계열로 DC 전류 값의 수이고, 원으로 나타낸 DC 전류들은 최고 VIP 스코어들을 갖는 X-변수들에 대응한다.
Claims (14)
- 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법으로서,
상기 방법은:
전기화학적 바이오센서에 전기 테스트 시퀀스를 적용하는 단계로서, 상기 바이오센서는:
전극 시스템,
상기 전극 시스템과 전기적으로 통신하는 시약, 및
테스트 요소에 제공된 유체 샘플을 상기 시약과 접촉시키도록 구성된 리셉터클을 포함하고,
상기 유체 샘플은 상기 시약과 유동적으로 접촉하고, 상기 테스트 시퀀스는 적어도 하나의 여기 전위 펄스 및 적어도 하나의 회복 전위 펄스의 시퀀스를 가지는 적어도 하나의 직류 (DC) 블록을 포함하고, 상기 전극 시스템의 폐회로 상태는 상기 DC 블록 동안 유지되는, 상기 전기화학적 바이오센서에 전기 테스트 시퀀스를 적용하는 단계; 및
상기 DC 블록으로부터 전류 응답 정보를 기반으로 분석물질 농도를 결정하는 단계로서, 상기 적어도 하나의 회복 전위 펄스로부터의 정보는 부분 최소 제곱 (PLS) 회귀 모델을 기반으로 상기 분석물질 농도에 대한 온도 영향을 보상하는데 사용되는, 상기 DC 블록으로부터 전류 응답 정보를 기반으로 분석물질 농도를 결정하는 단계를 포함하는, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 1 항에 있어서,
상기 적어도 하나의 여기 전위 펄스는 +450 ㎷ 이고 상기 적어도 하나의 회복 전위 펄스는 0 ㎷ 이고 각각의 펄스는 50 msec ~ 500 msec 인, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 1 항에 있어서,
상기 적어도 하나의 여기 전위 펄스 및 상기 적어도 하나의 회복 전위 펄스에 대한 전류 응답 정보를 측정하는 단계; 및
여기 전류 응답 및 회복 전류 응답으로부터 상기 분석물질 농도를 결정하는 단계를 더 포함하는, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 1 항에 있어서,
상기 테스트 시퀀스는 적어도 2 개의 다른 주파수들의 저 진폭 신호들의 교류 (AC) 블록을 더 포함하는, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 4 항에 있어서,
상기 AC 블록은 상기 적어도 하나의 DC 블록 앞에, 상기 적어도 하나의 DC 블록 뒤에 적용되거나 상기 적어도 하나의 DC 블록 내에 배치되는, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 1 항에 있어서,
상기 PLS 회귀 모델은 헤마토크리트 (hematocrit), 온도 및 분석물질 농도를 포함하는 공변량 데이터세트를 기반으로 하는, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 1 항에 있어서,
상기 PLS 회귀 모델은 온도 및 분석물질 농도를 포함하는 공변량 데이터세트를 기반으로 하는, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 4 항에 있어서,
상기 주파수들은 10 ㎑, 20 ㎑, 10 ㎑, 2 ㎑ 및 1 ㎑ 이고, 각각은 0.5 초 ~ 1.5 초 동안 적용되는, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 1 항에 있어서,
이완 펄스에 대한 전기적 응답의 정보는 여기 펄스에 대한 전기적 응답의 정보에서 발견되지 않는 정보를 포함하는, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 1 항에 있어서,
상기 분석물질 농도는 포도당 농도인, 유체 샘플 중 분석물질을 전기화학적으로 측정하면서 온도를 보상하는 방법. - 제 1 항 내지 제 10 항 중 어느 한 항의 방법을 수행하도록 구성된 분석물질 농도 측정 기기.
- 제 11 항에 있어서,
상기 기기는 혈당 측정기인, 분석물질 농도 측정 기기. - 제 1 항 내지 제 10 항 중 어느 한 항의 방법을 수행하도록 구성된 분석물질 농도 결정 시스템.
- 제 13 항에 있어서,
상기 시스템은 자체 모니터링 혈당 (SMBG) 시스템인, 분석물질 농도 결정 시스템.
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