Analysis Techniques for Measuring Glycated Hemoglobin in Undiluted Blood Samples

    公开(公告)号:US20220065876A1

    公开(公告)日:2022-03-03

    申请号:US17523113

    申请日:2021-11-10

    申请人: Jim Connolly

    发明人: Jim Connolly

    IPC分类号: G01N33/72 A61B5/15 A61B5/145

    摘要: Electrochemical test sensors and analysis methods are described that reduce or eliminate the pre-treatment or dilution of blood samples prior to HbA1c analysis. Thus, a blood sample obtained from a blood draw or phlebotomy may be introduced to the electrochemical test sensor for HbA1c analysis. The described test sensors immobilize or deactivate incompatible reagents, enzymes, and antibodies so they do not substantially interfere with each other during the analysis. The test sensors also use heat to catalyze reactions that otherwise would proceed at too slow of a rate to be practical.

    MULTI-ZONE, FIXED POTENTIAL TEST SENSOR HEATING SYSTEM METHOD

    公开(公告)号:US20210310980A1

    公开(公告)日:2021-10-07

    申请号:US17350410

    申请日:2021-06-17

    申请人: Jim Connolly

    发明人: Jim Connolly

    IPC分类号: G01N27/327 C12Q1/00 B01L7/00

    摘要: A test sensor heating system is disclosed that provides the desired and different temperatures to at least two different reaction zones based on a fixed potential. The measurement device does not alter the potential applied to the heating system in response to temperature feedback information. The heating system provides the desired and different temperatures to the different reaction zones of the test sensor by varying heating element spacing and/or the resistivity of an associated resistive layer of the test sensor to provide the desired temperature in response to the fixed potential. The system also may provide two or more different temperature zones to the test sensor by using different heating element spacing and/or resistive layer resistivity at different locations of the test sensor.

    Active enzyme protection system for an electrochemical biosensor

    公开(公告)号:US11079351B2

    公开(公告)日:2021-08-03

    申请号:US16194489

    申请日:2018-11-19

    申请人: Jim Connolly

    发明人: Jim Connolly

    IPC分类号: G01N27/327 C12Q1/00

    摘要: Immobilization zones through which a sample flows before reaching the proteolytic agents and/or active enzyme and associated electrode/s of an electrochemical test sensor may be used to trap or chemically deactivate active enzyme and/or proteolytic agent deactivating agents. Through either trapping or chemical deactivation, the immobilization zones substantially prevent the enzyme deactivating agents from reaching, and thus reducing the activity of the active enzyme or enzymes. Similarly, trapping or chemical deactivation may be used to prevent or substantially reduce the incidence of the proteolytic deactivating agent or agents from reaching the proteolytic agent.

    MULTI-ZONE, FIXED POTENTIAL TEST SENSOR HEATING SYSTEM

    公开(公告)号:US20190154619A1

    公开(公告)日:2019-05-23

    申请号:US16196547

    申请日:2018-11-20

    申请人: Jim Connolly

    发明人: Jim Connolly

    IPC分类号: G01N27/327 C12Q1/00

    摘要: A test sensor heating system is disclosed that provides the desired and different temperatures to at least two different reaction zones based on a fixed potential. The measurement device does not alter the potential applied to the heating system in response to temperature feedback information. The heating system provides the desired and different temperatures to the different reaction zones of the test sensor by varying heating element spacing and/or the resistivity of an associated resistive layer of the test sensor to provide the desired temperature in response to the fixed potential. The system also may provide two or more different temperature zones to the test sensor by using different heating element spacing and/or resistive layer resistivity at different locations of the test sensor.

    Multi-zone, fixed potential test sensor heating system method

    公开(公告)号:US12044649B2

    公开(公告)日:2024-07-23

    申请号:US17350410

    申请日:2021-06-17

    申请人: Jim Connolly

    发明人: Jim Connolly

    IPC分类号: G01N27/327 B01L7/00 C12Q1/00

    摘要: A test sensor heating system is disclosed that provides the desired and different temperatures to at least two different reaction zones based on a fixed potential. The measurement device does not alter the potential applied to the heating system in response to temperature feedback information. The heating system provides the desired and different temperatures to the different reaction zones of the test sensor by varying heating element spacing and/or the resistivity of an associated resistive layer of the test sensor to provide the desired temperature in response to the fixed potential. The system also may provide two or more different temperature zones to the test sensor by using different heating element spacing and/or resistive layer resistivity at different locations of the test sensor.

    ACTIVE ENZYME PROTECTION SYSTEM FOR AN ELECTROCHEMICAL

    公开(公告)号:US20190317039A1

    公开(公告)日:2019-10-17

    申请号:US16194489

    申请日:2018-11-19

    申请人: Jim Connolly

    发明人: Jim Connolly

    IPC分类号: G01N27/327 C12Q1/00

    摘要: Immobilization zones through which a sample flows before reaching the proteolytic agents and/or active enzyme and associated electrode/s of an electrochemical test sensor may be used to trap or chemically deactivate active enzyme and/or proteolytic agent deactivating agents. Through either trapping or chemical deactivation, the immobilization zones substantially prevent the enzyme deactivating agents from reaching, and thus reducing the activity of the active enzyme or enzymes. Similarly, trapping or chemical deactivation may be used to prevent or substantially reduce the incidence of the proteolytic deactivating agent or agents from reaching the proteolytic agent.

    Test sensors, systems, and analysis techniques for measuring glycated hemoglobin in undiluted blood samples

    公开(公告)号:US11199551B1

    公开(公告)日:2021-12-14

    申请号:US15820611

    申请日:2017-11-22

    申请人: Jim Connolly

    发明人: Jim Connolly

    IPC分类号: G01N33/72 A61B5/145 A61B5/15

    摘要: Electrochemical test sensors and analysis methods are described that reduce or eliminate the pre-treatment or dilution of blood samples prior to HbA1c analysis. Thus, a blood sample obtained from a blood draw or phlebotomy may be introduced to the electrochemical test sensor for HbA1c analysis. The described test sensors immobilize or deactivate incompatible reagents, enzymes, and antibodies so they do not substantially interfere with each other during the analysis. The test sensors also use heat to catalyze reactions that otherwise would proceed at too slow of a rate to be practical.

    Multi-zone, fixed potential test sensor heating system

    公开(公告)号:US11067529B2

    公开(公告)日:2021-07-20

    申请号:US16196547

    申请日:2018-11-20

    申请人: Jim Connolly

    发明人: Jim Connolly

    IPC分类号: G01N27/327 C12Q1/00 B01L7/00

    摘要: A test sensor heating system is disclosed that provides the desired and different temperatures to at least two different reaction zones based on a fixed potential. The measurement device does not alter the potential applied to the heating system in response to temperature feedback information. The heating system provides the desired and different temperatures to the different reaction zones of the test sensor by varying heating element spacing and/or the resistivity of an associated resistive layer of the test sensor to provide the desired temperature in response to the fixed potential. The system also may provide two or more different temperature zones to the test sensor by using different heating element spacing and/or resistive layer resistivity at different locations of the test sensor.