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    Pyrazine derivatives and uses thereof in renal monitoring
    11.
    再颁专利
    Pyrazine derivatives and uses thereof in renal monitoring 有权

    公开(公告)号：USRE47255E1

    公开(公告)日：2019-02-26

    申请号：US15668254

    申请日：2017-08-03

    Applicant: MediBeacon, Inc.

    Inventor： Raghavan Rajagopalan ,  Richard B. Dorshow ,  William L. Neumann

    IPC: A61K31/4965 ,  C07D241/02 ,  A61K31/5377 ,  A61K49/00 ,  C07D241/26

    Abstract: The present invention relates to pyrazine derivatives such as those represented by Formulas I and II below. X1 to X4 of the compounds of Formulas I and II may be characterized as electron withdrawing groups. In contrast, Y1 to Y4 of the compounds of Formulas I and II may be characterized as electron donating groups. Pyrazine derivatives of the present invention may be utilized in assessing renal function. In particular, an effective amount of a pyrazine derivative of the invention may be administered into a body of a patient. The pyrazine derivative that is in the body may be exposed to visible and/or infrared light to cause spectral energy to emanate from the pyrazine derivative. This emanating spectral energy may be detected and utilized to determine renal function of the patient.

    METHODS FOR RENAL FUNCTION DETERMINATION
    14.
    发明申请
    METHODS FOR RENAL FUNCTION DETERMINATION 审中-公开

    公开(公告)号：US20190125902A1

    公开(公告)日：2019-05-02

    申请号：US16171695

    申请日：2018-10-26

    Applicant: MediBeacon Inc.

    Inventor： Raghavan Rajagopalan ,  Richard B. Dorshow ,  William L. Neumann ,  Thomas E. Rogers

    IPC: A61K49/00 ,  A61B5/20 ,  A61B5/00 ,  A61M5/00

    Abstract: The present disclosure relates to systems and methods for determining the renal glomerular filtration rate or assessing the renal function in a patient in need thereof. The method includes administering a pyrazine compound of Formula I to a patient and monitoring the rate in which the kidneys of the patient eliminate the pyrazine from the systemic circulation of the patient. The pyrazine compound fluoresces when exposed to electromagnetic radiation which is detected using one or more sensors. The rate in which the fluorescence decreases in the patient is used to calculate the renal glomerular filtration rate in the patient.

    Tissue sealant compositions, vascular closure devices, and uses thereof
    16.
    发明授权
    Tissue sealant compositions, vascular closure devices, and uses thereof 有权

    公开(公告)号：US10881759B2

    公开(公告)日：2021-01-05

    申请号：US15223240

    申请日：2016-07-29

    Applicant: MediBeacon Inc.

    Inventor： Bob O. Basore ,  William L. Neumann ,  Richard B. Dorshow ,  Raghavan Rajagopalan

    IPC: A61L24/10 ,  A61L24/00 ,  A61L24/04

    Abstract: The present invention provides tissue sealant compositions and vasculature closure devices useful for the optical detection of tissue seal and/or clot formation. Compositions and devices of the present invention comprise optical dyes which undergo an observable change as the compositions and/or devices are incorporated into a tissue seal and/or clot, for example a change in fluorescence quantum yield and/or a change in visual color including a change in emission and/or absorption wavelength. Tissue sealants and vasculature closure devices of the present invention are useful for visualizing seal and/or clot formation, for example, during or after surgical procedures, after catheter removal, etc. The present invention further provides methods for formation and optical detection of tissue seals or vasculature puncture closures as well as medical kits useful for the formation and optical detection of tissue seals or vasculature puncture closures.

    FLUORESCENT PYRAZINE DERIVATIVES AND METHODS OF USING THE SAME IN ASSESSING RENAL FUNCTION
    19.
    发明申请
    FLUORESCENT PYRAZINE DERIVATIVES AND METHODS OF USING THE SAME IN ASSESSING RENAL FUNCTION 审中-公开
    荧光素吡嗪衍生物及其在评估肾功能中的使用方法

    公开(公告)号：US20160280666A1

    公开(公告)日：2016-09-29

    申请号：US15178799

    申请日：2016-06-10

    Applicant: MediBeacon Inc.

    Inventor： Raghavan Rajagopalan ,  Richard B. Dorshow ,  William L. Neumann ,  Dennis A. Moore

    IPC: C07D241/28 ,  C07D241/26

    CPC classification number: C07D241/28 ,  A61K31/4965 ,  A61K49/0004 ,  A61K49/0021 ,  A61K49/0052 ,  C07D241/20 ,  C07D241/26

    Abstract: The present invention relates to pyrazine derivatives such as those represented by Formulas I and II. X1 to X4 of Formulas I and II may be characterized as electron withdrawing groups, while Y1 to Y4 of Formulas I and II may be characterized as electron donating groups. Pyrazine derivatives of the present invention may be utilized in assessing organ (e.g., kidney) function. In a particular example, an effective amount of a pyrazine derivative that is capable of being renally cleared may be administered into a patient's body. The pyrazine derivative may capable of one or both absorbing and emanating spectral energy of at least about 400 nm (e.g., visible and/or infrared light). At least some of the derivative that is in the body may be exposed to spectral energy and, in turn, spectral energy may emanate from the derivative. This emanating spectral energy may be detected and utilized to determine renal function of the patient.

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