Fluorescence imaging system
    1.
    发明授权
    Fluorescence imaging system 失效
    荧光成像系统

    公开(公告)号:US5986271A

    公开(公告)日:1999-11-16

    申请号:US888067

    申请日:1997-07-03

    Abstract: A fluorescent imaging system provides an illuminated image of an object that has been subjected to a fluorescent dye, as well as a fluorescence image of the object. Thus, highlighted fluorescent portions of the object are viewed in context with the surrounding environment of the object being viewed. The imaging system includes an optical system which separates illumination light reflected from the object from fluorescence light radiating from the object and provides illuminated and fluorescence images of the object.

    Abstract translation: 荧光成像系统提供已经经受荧光染料的物体的照射图像以及物体的荧光图像。 因此,在被观察对象的周围环境的上下文中观察对象的突出显示的荧光部分。 该成像系统包括一个光学系统,该光学系统将从物体反射的照明光与从物体辐射的荧光分开,并提供物体的照明和荧光图像。

    Stereoscopic autofocusing based on comparing the left and right eye
images
    2.
    发明授权
    Stereoscopic autofocusing based on comparing the left and right eye images 失效
    基于比较左眼和右眼图像的立体自动对焦

    公开(公告)号:US5864359A

    公开(公告)日:1999-01-26

    申请号:US446048

    申请日:1995-05-30

    Abstract: A stereoscopic image of an object is focused on an image pickup device based on the degree to which left and right images of the object are coincident on the image pickup device. Signals produced by the image pickup device that represent the left and right images are compared with each other to develop a control signal that indicates the coincidence of the left and right images on the image pickup device, and the spacing between the image pickup device and an optical element that directs the images onto the device is changed in response to the control signal to increase the coincidence. Two alternative types of comparison are performed, each of which indicates the degree of coincidence (and hence the quality of focus) of the left and right images on the image detector. In one approach, the left and right images are compared to determine their cross correlation on the image pickup device, and the spacing is changed to maximize the correlation. Alternatively, the comparison determines the difference between the left and right images on the image pickup device, and the spacing is changed to minimize the difference. The focusing technique is useful in, e.g., the optical system of an endoscope. Rangefinding and videometry are also performed to determine the distance to the object being viewed, as well as its position and size.

    Abstract translation: 基于物体的左图像和右图像在图像拾取装置上重合的程度,物体的立体图像被聚焦在图像拾取装置上。 由图像拾取装置产生的表示左图像和右图像的信号彼此进行比较,以产生指示图像拾取装置上的左图像和右图像一致的控制信号,以及图像拾取装置和 将图像引导到装置上的光学元件响应于控制信号而改变以增加重合。 执行两种替代类型的比较,每种类型的比较指示图像检测器上的左图像和右图像的一致度(因此指示焦点的质量)。 在一种方法中,比较左和右图像以确定它们在图像拾取装置上的互相关,并且改变间距以使相关性最大化。 或者,比较确定图像拾取装置上的左图像和右图像之间的差异,并且改变间距以使差异最小化。 聚焦技术在例如内窥镜的光学系统中是有用的。 还执行测距和视距测量以确定与被观察对象的距离以及其位置和大小。

    Stereoscopic imaging by alternately blocking light
    4.
    发明授权
    Stereoscopic imaging by alternately blocking light 失效
    立体成像通过交替阻挡光

    公开(公告)号:US5964696A

    公开(公告)日:1999-10-12

    申请号:US740206

    申请日:1996-10-24

    CPC classification number: A61B1/00193

    Abstract: A stereoscopic imaging device is described that attaches to an instrument, such as an endoscope or a borescope, which is characterized by an exit pupil in the vicinity of its proximal region. The imaging device includes a dual aperture plate and an optical switch that are disposed within a housing that attaches to the proximal region of the instrument. The dual aperture plate defines right and left, spaced-apart apertures respectively disposed at symmetric locations substantially in the plane of the exit pupil of the instrument. The optical switch alternately blocks light received from the instrument and passing through the right and left optical channels so that a stereoscopic view can be generated.

    Abstract translation: 描述了一种立体成像装置,其连接到诸如内窥镜或管状镜的仪器,其特征在于其近端区域附近的出射光瞳。 成像装置包括双孔板和光学开关,其设置在壳体内,附接到仪器的近侧区域。 双孔板限定分别设置在基本上在仪器的出射光瞳的平面中的对称位置处的左右间隔开的孔。 光开关交替地阻挡从仪器接收的光并通过左右光通道,从而可以产生立体视图。

    Through-wall catheter steering and positioning
    5.
    发明授权
    Through-wall catheter steering and positioning 失效
    直通导管转向和定位

    公开(公告)号:US5906579A

    公开(公告)日:1999-05-25

    申请号:US907824

    申请日:1997-08-14

    CPC classification number: A61M25/0108 A61M25/0127 A61M25/0125

    Abstract: A method of positioning a catheter, for example a balloon or treatment catheter. The catheter is inserted in a passage and sensed through the luminal wall to correctly determine its position. As applied to prevent hemorrhage during surgery the method involves inserting the catheter in a deflated configuration along a passage such as a blood vessel near to the operative site in a position determined by direct or video-assisted sensing from outside the passage. In the event a blood vessel is cut during surgery, the already-positioned catheter inflates a balloon to occlude the passage and stop blood flow into the injured site. In one aspect, a flow-directed catheter includes an inflatable balloon attached at its distal end and an optical fiber connected to one or more light emitting regions positioned at the tip or in the vicinity of the balloon. The light is divergent and is emitted at one or more points to provide beacons that are readily detected through the walls of a blood vessel and permit a direct determination of the exact location of the balloon within the vessel. Rather than a flow-directed balloon catheter, a drug-delivery or other catheter may be used. In that case the light emitting regions are located at or adjacent to one or more drug delivery ports or other active areas in the catheter. In another or further aspect, one or more magnetic elements are provided on the catheter, and an external magnet is used to feel and engage the catheter through the vessel wall, sense its position, steer and move it along branching vessels, and anchor the balloon in a desired position.

    Abstract translation: 定位导管的方法,例如球囊或治疗导管。 将导管插入通道并通过管腔壁感测以正确确定其位置。 如应用于防止在手术期间出血的方法包括将导管沿着诸如靠近手术部位的血管的通道以放气的形式插入到通过外部通过直接或视频辅助感测确定的位置。 在手术中切断血管的情况下,已经定位的导管充气气球以封闭通道并阻止血液流入受伤部位。 在一个方面,流动导管包括在其远端附接的可充气气囊,以及连接到位于气囊顶端或附近的一个或多个发光区域的光纤。 光是发散的并且在一个或多个点处发射以提供易于通过血管的壁检测的信标,并允许直接确定气囊在血管内的确切位置。 而不是流动导向的气囊导管,可以使用药物递送或其它导管。 在这种情况下,发光区域位于或邻近导管中的一个或多个药物递送口或其它有效区域。 在另一方面或另外的方面中,一个或多个磁性元件设置在导管上,并且外部磁体用于感测和接合导管通过血管壁,感测其位置,转向并沿分支血管移动,并锚定气囊 在期望的位置。

    Intravascular catheter and method of controlling hemorrhage during
minimally invasive surgery
    7.
    发明授权
    Intravascular catheter and method of controlling hemorrhage during minimally invasive surgery 失效
    血管内导管和控制微创手术出血的方法

    公开(公告)号:US5904147A

    公开(公告)日:1999-05-18

    申请号:US696572

    申请日:1996-08-16

    CPC classification number: A61M25/0108 A61M25/0127 A61M25/0125

    Abstract: A catheter, for example a balloon or treatment catheter, is positioned to prevent hemorrhage during surgery by inserting the catheter in a deflated configuration along a passage such as a blood vessel near to the operative site in a position determined by direct or video-assisted viewing from outside the passage. In the event a blood vessel is cut during surgery, the previously positioned catheter inflates a balloon to occlude the passage and stop blood flow into the injured site. A flow-directed catheter includes an inflatable balloon attached at its distal end and an optical fiber connected to one or more light emitting regions positioned in the vicinity of the balloon. The light is emitted transversely, and preferably omnidirectionally at one or more points with a sufficient brightness to provide beacons that are readily detected through the walls of a blood vessel and permit a direct determination of the exact location of the balloon within the vessel. Rather than a flow-directed balloon catheter, a drug-delivery or other catheter may be used. In that case the light emitting regions are located at or adjacent to one or more drug delivery ports or other active areas in the catheter.

    Abstract translation: 定位导管,例如球囊或治疗导管,以防止在手术过程中通过将导管插入放气配置中,沿着诸如通过直接或视频辅助观察确定的位置的手术部位附近的血管的通道 从通道外。 在手术期间切断血管的情况下,先前定位的导管充气气球以封闭通道并阻止血液流入受伤部位。 流动导管包括在其远端附接的可充气气囊和连接到位于气球附近的一个或多个发光区域的光纤。 光线在一个或多个点以横向方式发射,并且优选全方位地具有足够的亮度,以提供通过血管的壁容易地检测的信标,并允许直接确定气囊在血管内的确切位置。 而不是流动导向的气囊导管,可以使用药物递送或其它导管。 在这种情况下,发光区域位于或邻近导管中的一个或多个药物递送口或其它有效区域。

    Tissue retrieval bag and method for removing cancerous tissue
    8.
    发明授权
    Tissue retrieval bag and method for removing cancerous tissue 失效
    组织取出袋和去除癌组织的方法

    公开(公告)号:US5769794A

    公开(公告)日:1998-06-23

    申请号:US707698

    申请日:1996-09-04

    CPC classification number: A61B17/00234 A61B2017/00287

    Abstract: A tissue retrieval bag has a wide mouth and folds for insertion through an incision to a body cavity to form a flat tray and receive excised tissue. The tissue is dropped onto the floor of the bag and the mouth of the bag is then drawn back through the incision, where it drapes the opening to provide a protected tunnel to the resected tissue still lying within the cavity. The bag is preferably transparent, and the enclosed tissue may be viewed endoscopically while a morcellizer is inserted through the tunnel and operated to aspirate the tissue, so that the bag is then readily withdrawn through the incision. Alternatively, an endoscope may be inserted through the tunnel directly into the bag to monitor and control morcellation. In a preferred embodiment the tissue is resected lung tissue and, a morcellizer blade is used to selectively morcellate only the parenchyma, leaving lymphatic tissue and the bronchial tree in the bag for histologic analysis. The bag may have pleated walls which provide dimensional stability in a shape that avoids cutter damage and cleanly catches and contains the resected tissue, thus reducing the risk of seeding tumor cells.

    Abstract translation: 组织取出袋具有宽口并折叠以通过切口插入体腔以形成平坦的托盘并接收切除的组织。 将组织落到袋子的地板上,然后袋子的嘴被通过切口拉回,在那里它将开口打开,以便为仍然位于腔内的被切除的组织提供保护的隧道。 该袋优选是透明的,并且可以内窥镜观察封闭的组织,同时将morceller插入通过隧道并操作以抽吸组织,使得袋随后通过切口容易地抽出。 或者,内窥镜可以通过隧道直接插入袋中以监测和控制毛细胞。 在优选的实施方案中,组织被切除肺组织,并且使用致动器刀片来仅选择性地仅切片实质,将淋巴组织和支气管树留在袋中用于组织学分析。 该袋可以具有褶皱的壁,其提供形状的尺寸稳定性,其避免刀具损伤并且清洁地捕获并且包含切除的组织,从而降低接种肿瘤细胞的风险。

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