Method for Compensating for the Aging of a Reagent During Fluorescence Measurements Carried out on Particles, and Biological Analysis Device Implementing the Method
    11.
    发明申请
    Method for Compensating for the Aging of a Reagent During Fluorescence Measurements Carried out on Particles, and Biological Analysis Device Implementing the Method 有权
    用于补偿在颗粒进行的荧光测量期间试剂的老化的方法和实施该方法的生物分析装置

    公开(公告)号:US20150241352A1

    公开(公告)日:2015-08-27

    申请号:US14423030

    申请日:2013-08-19

    Applicant: HORIBA ABX SAS

    Abstract: The present invention relates to a method for compensating for the breakdown of a reagent stored in an aqueous phase comprising at least one fluorescent compound and enabling the identification of particles, including the steps of: (i) measuring the fluorescence level FLUOm(t) of particles marked with said reagent; (ii) measuring the absorbance at at least one wavelength of a solution of said reagent, at a time t close to the time of said fluorescence level FLUOm(t) measurements, so as to determine at least one current optical density DO(t) of the reagent; and (iii) calculating a correction of the fluorescent level measurements using said at least one current optical density DO(t) and at least one initial optical density DO(0) of the reagent that has not been broken down. The invention also relates to a biological analysis device implementing the method.

    Abstract translation: 本发明涉及一种用于补偿存储在包含至少一种荧光化合物的水相中的试剂的分解的方法,并且能够鉴定颗粒,包括以下步骤:(i)测量荧光水平FLUOm(t) 用所述试剂标记的颗粒; (ii)在接近所述荧光水平FLUOm(t)测量时间的时间t测量所述试剂溶液的至少一个波长处的吸光度,以便确定至少一个当前光密度DO(t) 的试剂; 以及(iii)使用所述至少一个当前光密度DO(t)和至少一个未被分解的试剂的初始光密度DO(0)来计算荧光水平测量的校正。 本发明还涉及实现该方法的生物分析装置。

    Optical method for estimating a representative volume of particles present in a sample based on a size of each region of interest

    公开(公告)号:US11385158B2

    公开(公告)日:2022-07-12

    申请号:US16760777

    申请日:2018-10-30

    Abstract: The invention is a method for estimating a representative volume of particles of interest (10 i) immersed in a sample, the sample extending in at least one plane, referred to as the sample plane (P 10), the sample comprising a sphering agent, capable of modifying the shape of the particles, the method comprising the following steps: a) illuminating the sample by means of a light source (11), the light source emitting an incident light wave (12) propagating towards the sample (10) along a propagation axis (Z); b) acquiring, by means of an image sensor (16), an image (I 0) of the sample (10), formed in a detection plane (P 0), the sample being arranged between the light source (11) and the image sensor (16), each image being representative of a light wave (14) referred to as an exposure light wave, to which the image sensor (16) is exposed under the effect of illumination; c) using the image of the sample (I 0), acquired during step b), and a holographic propagation operator, to calculate a complex expression (A (x, y, z)) of the exposure light wave (14) in different positions relative to the detection plane; the method comprising a step of estimating the representative volume (AA) of the particles of interest (10 i) depending on the complex expressions calculated during step c).

    Biological analysis system
    15.
    发明授权

    公开(公告)号:US11360109B2

    公开(公告)日:2022-06-14

    申请号:US16479097

    申请日:2018-01-17

    Applicant: HORIBA ABX SAS

    Abstract: A biological analysis system comprises at least two biological analysis devices connected to one another by a conveyor defining a closed circuit, each biological analysis device comprising at least one inlet and one outlet for racks of tubes, and at least one exchange region for exchanging racks of tubes with the conveyor, which exchange region is distinct from the inlet and from the outlet. The inlet of at least two biological analysis devices each form an inlet of the biological analysis system for racks of tubes, and the outlet of at least two biological analysis devices each form an outlet of the biological analysis system for racks of tubes. The biological analysis system further comprises a controller designed to command the transfer of a rack of tubes received in the biological analysis system via the conveyor to another biological analysis device according to the operations to be performed on the tubes in that rack and/or according to a respective workload status of the biological analysis devices.

    OPTICAL METHOD FOR ESTIMATING A REPRESENTATIVE VOLUME OF PARTICLES PRESENT IN A SAMPLE

    公开(公告)号:US20200326269A1

    公开(公告)日:2020-10-15

    申请号:US16760777

    申请日:2018-10-30

    Abstract: The invention is a method for estimating a representative volume of particles of interest (10 i) immersed in a sample, the sample extending in at least one plane, referred to as the sample plane (P 10), the sample comprising a sphering agent, capable of modifying the shape of the particles, the method comprising the following steps: a) illuminating the sample by means of a light source (11), the light source emitting an incident light wave (12) propagating towards the sample (10) along a propagation axis (Z); b) acquiring, by means of an image sensor (16), an image (I 0) of the sample (10), formed in a detection plane (P 0), the sample being arranged between the light source (11) and the image sensor (16), each image being representative of a light wave (14) referred to as an exposure light wave, to which the image sensor (16) is exposed under the effect of illumination; c) using the image of the sample (I 0), acquired during step b), and a holographic propagation operator, to calculate a complex expression (A (x, y, z)) of the exposure light wave (14) in different positions relative to the detection plane; the method comprising a step of estimating the representative volume (AA) of the particles of interest (10 i) depending on the complex expressions calculated during step c).

    Device for rotating object
    18.
    发明授权

    公开(公告)号:US10768191B2

    公开(公告)日:2020-09-08

    申请号:US16062563

    申请日:2016-12-09

    Inventor: Yuki Ishii

    Abstract: The apparatus contains a driving unit having a driving source device and a driving shaft, and the driving shaft has a drive-side roller for rotating the object (specimen container). The driving shaft is provided with a one-directional transmission device containing a mechanism for transmitting only rotational driving force in the first direction of the driving shaft to a driven-side part. The apparatus has a mechanism for converting a rotational driving force in the first direction to move a driving unit in a direction away from the object or a mechanism for converting a rotational driving force in the first direction to move a driven unit in a direction away from the object, and the rotational driving force in the second direction of the driving shaft rotates the object.

    Rotary sampling valve and device equipped with such a valve

    公开(公告)号:US10150119B2

    公开(公告)日:2018-12-11

    申请号:US15121727

    申请日:2015-02-20

    Applicant: HORIBA ABX SAS

    Abstract: The invention relates to a sampling valve and to a device equipped with such a valve notably allowing haematology measurements to be taken from a blood sample. The valve comprise two external parts, one internal part clamped between said external parts, and means for regulating the relative angular position of these parts about an axis of rotation. The internal part has opposite surfaces pressing in a sealed and sliding manner against adjacent surfaces of the external parts. The external parts comprise orifices, loops and ducts, said loops and said ducts being arranged in such a way as to communicate selectively with orifices passing through the internal part. The valve parts have no aliquot return groove or recess or labyrinth, thereby eliminating regions of turbulence. The valve is characterized in that two of the parts are able to rotate about the axis of rotation with respect to one of the said parts which is stationary, the rotary parts preferably being the external parts. The sampling valve also makes it possible to form calibrated volumes of a sample taken in the loops and/or the orifices of the internal part.

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