OPTICAL SYSTEM FOR FLUORESCENCE OBSERVATION
    1.
    发明申请
    OPTICAL SYSTEM FOR FLUORESCENCE OBSERVATION 审中-公开
    用于荧光观察的光学系统

    公开(公告)号:US20160139391A1

    公开(公告)日:2016-05-19

    申请号:US14940639

    申请日:2015-11-13

    摘要: An optical system for fluorescence observation comprises optics including an ocular 17, a camera 55, a display 69, a light source 71, an illumination light filter 84, an observation light filter 57 and a controller 35. The observation filter has multiple transmitting regions which allows light which was generated by a fluorescence to traverse for observation. The transmitting ranges are divided by blocking ranges. At the wavelength ranges at which the observation filter has a transmitting region the illumination filter has a blocking region and the other way round. The multiple transmitting regions of the illumination filter enable an improved color impression under normal light observation.The controller is configured to process a fluorescent light image obtained by the camera by identifying a contiguous fluorescent region in the fluorescent light image, generating an image including a representation of the boundary of the contiguous fluorescent region, and supplying the generated image to the display.

    摘要翻译: 用于荧光观察的光学系统包括光学器件,其包括眼17,相机55,显示器69,光源71,照明光滤波器84,观察光滤波器57和控制器35.观察滤波器具有多个发射区域 允许由荧光产生的光穿过观察。 发送范围除以阻塞范围。 在观察滤波器具有透射区域的波长范围内,照明滤光器具有阻挡区域,而另一方面。 照明滤光片的多个发射区域能够在正常光线观察下实现改善的彩色印象。 控制器被配置为通过识别荧光图像中的连续荧光区域来处理由照相机获得的荧光图像,生成包括邻接荧光区域的边界的表示的图像,并将生成的图像提供给显示器。

    COMPUTER-IMPLEMENTED METHOD, COMPUTER PROGRAM AND SURGICAL SYSTEM FOR DETERMINING THE VOLUMETRIC FLOW RATE OF BLOOD THROUGH A PORTION OF A BLOOD VESSEL IN A SURGICAL FIELD

    公开(公告)号:US20230080925A1

    公开(公告)日:2023-03-16

    申请号:US17793805

    申请日:2021-02-02

    IPC分类号: A61B5/026 A61B5/00 G16H30/40

    摘要: The invention relates to a computer-implemented method (10) for determining the blood volume flow (IBI) through a portion (90i, i=1, 2, 3, . . . ) of a blood vessel (88) in an operating region (36) using a fluorophore. A plurality of images (801, 802, 803, 804, . . . ) are provided, which are based on fluorescent light in the form of light having wavelengths lying within a fluorescence spectrum of the fluorophore, and which show the portion (90i) of the blood vessel (88) at different recording times (t1, t2, t3, t4, . . . ). By processing at least one of the provided images (801, 802, 803, 804, . . . ), a diameter (D) and a length (L) of the portion (90i) of the blood vessel (88) and also a time interval for a propagation of the fluorophore through the portion (90i) of the blood vessel (88) are determined, which time interval describes a characteristic transit time (τ) for the fluorophore in the portion (90i) of the blood vessel (88), in which a blood vessel model (MBQ) for the portion (90i) of the blood vessel (88) is specified, which blood vessel model describes the portion (90i) of the blood vessel (88) as a flow channel (94) having a length (L), having a wall (95) with a wall thickness (d), and having a free cross section Q. A fluid flow model MFQ for the blood vessel model (MBQ) is assumed, which fluid flow model describes a local flow velocity (122) at different positions over the free cross section Q of the flow channel (94) in the blood vessel model (MBQ), and a fluorescent light model MLQ is assumed, which describes a spatial probability density for the intensity of the remitted light at different positions over the free cross section Q of the flow channel (94) in the blood vessel model (MBQ), which light is emitted by a fluid, which is mixed with fluorophore and flows through the free cross section Q of the flow channel (94) in the blood vessel model (MBQ), when said fluid is irradiated with fluorescence excitation light. The blood volume flow (IBI) is determined as a fluid flow guided through the flow channel (94) in the blood vessel model (MBQ), which fluid flow is calculated from the length (L) and the diameter (D) of the portion (90i) of the blood vessel (88) and from the characteristic transit time (τ) for the fluorophore in the portion (90i) of the blood vessel (88), using the fluid flow model MFQ and the fluorescent light model MLQ.

    ENDOSCOPIC PROBE
    3.
    发明申请
    ENDOSCOPIC PROBE 审中-公开

    公开(公告)号:US20180303318A1

    公开(公告)日:2018-10-25

    申请号:US15950715

    申请日:2018-04-11

    IPC分类号: A61B1/00 A61B1/07

    CPC分类号: A61B1/00066 A61B1/00112

    摘要: An endoscopic probe is made available. Said endoscopic probe comprises: a handle with a front end a rear end with a rear end axis and, extending between the front end and the rear end, a straight grip portion with a grip portion axis; a shaft extending from the front end of the handle and having a shaft axis, and a cable issuing from the rear end, wherein the shaft axis, the rear end axis and the grip portion axis lie within a common plane, the shaft axis encloses an angle in the range of 100 to 140 degrees with the grip portion axis, the grip portion axis encloses an angle in the range of 110 to 130 degrees with the rear end axis, the shaft axis encloses an angle in the range of 30 to 90 degrees with the rear end axis.

    Optical Filter System and Fluorescence Observation System
    4.
    发明申请
    Optical Filter System and Fluorescence Observation System 有权
    光学过滤系统和荧光观测系统

    公开(公告)号:US20150346098A1

    公开(公告)日:2015-12-03

    申请号:US14722265

    申请日:2015-05-27

    IPC分类号: G01N21/64 G02B5/22

    摘要: An optical filter system for florescence observation comprises an illumination light filter (I) and an observation light filter (O). The observation light filter has plural transmitting regions (D1O,D2O) allowing fluorescent light to traverse the observation light filter. Blocking regions (S0O,S1O) separate the transmitting regions. The illumination light filter has transmitting regions (D0I,D1I) where the observation light filter has a corresponding blocking region. The illumination light filter has blocking regions (S1I,S2I) where the observation light filter has a corresponding transmitting region. The plural transmitting regions of the illumination light filter hallow for an improved color impression in the normal light observation.

    摘要翻译: 用于荧光观察的滤光器系统包括照明光滤光器(I)和观察光过滤器(O)。 观察光滤波器具有允许荧光穿过观察滤光器的多个透射区域(D1O,D2O)。 阻挡区域(S0O,S1O)分离发射区域。 照明光滤波器具有发送区域(D0I,D1I),其中观察光滤波器具有对应的阻挡区域。 照明光滤波器具有阻挡区域(S1I,S2I),其中观察光滤波器具有相应的发射区域。 照明光过滤器的多个透射区域在正常光观察中为了改善的颜色印象。

    FLUORESCENCE OBSERVATION SYSTEM AND SET OF FILTERS
    7.
    发明申请
    FLUORESCENCE OBSERVATION SYSTEM AND SET OF FILTERS 审中-公开
    荧光观察系统和滤光片组

    公开(公告)号:US20140211306A1

    公开(公告)日:2014-07-31

    申请号:US14242339

    申请日:2014-04-01

    IPC分类号: G02B21/06 G02B5/20 G01N21/64

    摘要: A set of filters for fluorescence observation comprises an illumination light filter and an observation light filter, wherein the following is holds: ∫ S  T L  ( r -> ) · T O  ( r -> ) · r -> ·  r ∫ S  T L  ( r -> ) · T O  ( r -> ) ·  r = R ->   and ( 3 )  W -> - R ->  ≤ 0.2 ; ( 4 ) wherein: λ designates the wavelength, TL(λ) is the transmission characteristic of the illumination light filter, TO(λ) is the transmission characteristic of the observation light filter, and A1, A2 are numbers between 0 and 1, {right arrow over (r)} is a coordinate in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space, S is a line called the spectral locus in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space, and {right arrow over (W)} is the white point in the CIE xy chromaticity diagram of the CIE 1931 XYZ color space.

    摘要翻译: 用于荧光观察的一组滤光器包括照明光滤光器和观察光滤光片,其中以下是:∫S TL(r->)·TO(r->)·r···∫r∫ (r - >)·r = R→>>≤≤≤≤ (4)其中:λ表示波长,TL(λ)是照明光滤波器的透射特性,TO(λ)是观察光滤波器的透射特性,A1,A2是0和1之间的数,{ 右侧箭头(r)}是CIE 1931 XYZ色彩空间的CIE xy色度图中的坐标,S是CIE 1931 XYZ色彩空间的CIE xy色度图中称为光谱轨迹的线,{右箭头 over(W)}是CIE 1931 XYZ色彩空间的CIE xy色度图中的白点。