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    • 12. 发明授权
    • Bladeless optical obturator
    • 无光学光学闭孔器
    • US07947058B2
    • 2011-05-24
    • US10956167
    • 2004-10-01
    • Henry KahleArkadiusz A. StrokoszKimball B. McGinleyScott V. TaylorGary M. JohnsonJohn R. Brustad
    • Henry KahleArkadiusz A. StrokoszKimball B. McGinleyScott V. TaylorGary M. JohnsonJohn R. Brustad
    • A61B17/00
    • A61B17/3417A61B1/3132A61B17/3415A61B17/3421A61B17/3423A61B17/3462A61B17/3468A61B17/3474A61B17/3478A61B17/3496A61B90/361A61B90/92A61B2017/0046A61B2017/00477A61B2017/00907A61B2017/320044A61B2017/3425A61B2017/3445A61B2017/3456A61B2017/346A61B2017/3464A61B2017/347A61B2090/3937
    • The invention is directed to a bladeless trocar obturator to separate or divaricate body tissue during insertion through a body wall. In one aspect, the obturator of the invention comprises a shaft extending along an axis between a proximal end and a distal end; and a bladeless tip disposed at the distal end of the shaft and having a generally tapered configuration with an outer surface, the outer surface extending distally to a blunt point with a pair of side sections having a common shape and being separated by at least one intermediate section, wherein each of the side sections extends from the blunt point radially outwardly with progressive positions proximally along the axis, and the shaft is sized and configured to receive an optical instrument having a distal end to receive an image of the body tissue. With this aspect, the tapered configuration facilitates separation of different layers of the body tissue and provides proper alignment of the tip between the layers. The side sections include a distal portion and a proximal portion, the distal portion of the side sections being twisted radially with respect to the proximal portion of the side sections. The intermediate section includes a distal portion and a proximal portion, the distal portion of the intermediate section being twisted in a first radial direction and the proximal portion of the intermediate section being twisted in a second radial direction opposite the first radial direction.
    • 本发明涉及一种无插管套管针闭塞器,用于在插入穿过体壁时分离或分离身体组织。 一方面,本发明的闭孔器包括沿着近端和远端之间的轴延伸的轴; 以及设置在所述轴的远端处并且具有大致锥形构造并具有外表面的无叶尖,所述外表面向远侧延伸到钝点,一对侧部具有共同的形状并且被至少一个中间体 其中每个所述侧部分从所述钝点径向向外延伸,并具有沿所述轴向近端的渐进位置,并且所述轴的尺寸和构造用于容纳具有远端以接收所述身体组织的图像的光学仪器。 通过这个方面,锥形配置便于分离身体组织的不同层,并提供顶层在层之间的适当对准。 侧部包括远端部分和近端部分,侧部分的远侧部分相对于侧部部分的近端部分径向扭转。 中间部分包括远端部分和近端部分,中间部分的远端部分在第一径向方向上扭转,并且中间部分的近端部分在与第一径向方向相反的第二径向扭转。
    • 20. 发明授权
    • Anti-inversion trocar seal
    • 防反转套管针密封
    • US07112185B2
    • 2006-09-26
    • US10948383
    • 2004-09-23
    • Charles C. HartHenry KahleScott V. Taylor
    • Charles C. HartHenry KahleScott V. Taylor
    • A61M31/00
    • A61B17/3498A61B17/3462A61B2017/3464
    • The invention is directed to a trocar seal adapted to form a seal around a surgical instrument, the trocar seal comprising a housing having an axis extending between a proximal end and a distal end and forming a working channel sized and configured to receive the surgical instrument; an elastomeric septum seal having a proximal face and a distal face, the septum seal being disposed in the housing and extending transverse to the axis of the housing across the working channel; portions of the septum seal defining a hole having a diameter less than or equal to the diameter of the surgical instrument so that during insertion of the instrument along the working channel the septum seal forms a seal with the instrument; and at least one structure formed integrally with or proximate to the septum seal to prevent inversion of the septum seal upon withdrawal of the surgical instrument. The septum seal or the housing may further comprise a sidewall to include the structure extending from the sidewall to the distal face of the seal to tether the seal distally. The structure may be integrally formed with the proximal face of the septum seal to reinforce the seal, or the structure may be integrally formed with the distal face of the septum seal to tether the seal distally. The structure may be an annular reinforcement or rib, and is formed so as to allow side-to-side movement or floatation of the seal. The trocar seal may further comprise a plurality of radially extending ribs formed on the proximal or distal face of the septum seal to reinforce the seal. The trocar seal may further comprise a tensile element formed on the distal face of the septum seal.
    • 本发明涉及适于在外科器械周围形成密封的套针针密封件,套管针密封件包括具有在近端和远端之间延伸的轴线的壳体,并形成尺寸和构造成接收外科器械的工作通道; 具有近端面和远侧面的弹性隔膜密封件,所述隔膜密封件设置在所述壳体中并横跨所述工作通道横向于所述壳体的轴线延伸; 隔膜密封件的部分限定了直径小于或等于外科器械直径的孔,使得在沿着工作通道插入器械期间,隔垫密封件与仪器形成密封; 以及与隔膜密封件一体地或靠近隔膜密封件形成的至少一个结构,以在外科器械撤回时防止隔垫密封件反转。 隔垫密封件或外壳可以进一步包括侧壁,其包括从密封件的侧壁延伸到远端面的结构,以将密封件向远侧系绳。 该结构可以与隔膜密封件的近侧面一体地形成,以加强密封,或者结构可以与隔膜密封件的远侧面一体地形成,以使密封件向远侧方向。 该结构可以是环形加强件或肋,并且形成为允许密封件的侧面移动或浮动。 套管针密封件还可以包括形成在隔膜密封件的近侧或远侧面上的多个径向延伸的肋条,以加强密封。 套针针密封件还可以包括形成在隔膜密封件的远侧面上的拉伸元件。