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    • 2. 发明授权
    • Cervical retractor
    • 子宫颈牵开器
    • US08900137B1
    • 2014-12-02
    • US13457484
    • 2012-04-26
    • Nathan LovellMichael SerraMichael BrotmanAndrew WolfKenneth Rich
    • Nathan LovellMichael SerraMichael BrotmanAndrew WolfKenneth Rich
    • A61B17/02
    • A61B17/02A61B17/0206A61B2017/00566A61B2217/005
    • An anterior cervical retractor comprises a retractor body having a base arm and a moving arm and a pair of retractor blades having a side loading blade and a top loading blade. The base arm includes a first track and a side loading connector. The first track extends perpendicularly from a proximal end of the base arm and the first track includes an articulating arm post and a gear teeth. The moving arm is located opposite to the base arm and includes a first track receptacle and a top loading connector. The moving arm is advanced along the first track by means of a knob extending from the base arm. The side loading blade includes a first blade portion and a first connection post and the top loading blade includes a second blade portion and a second connection post.
    • 前颈椎牵开器包括具有基部臂和移动臂的牵开器主体和具有侧向装载刀片和顶部装载刀片的一对牵开器刀片。 基座臂包括第一轨道和侧向加载连接器。 第一轨道从基部臂的近端垂直延伸,并且第一轨道包括铰接臂柱和齿轮齿。 移动臂位于与基部臂相对的位置,并且包括第一轨道容座和顶部装载连接器。 移动臂通过从基部臂延伸的旋钮沿着第一轨道前进。 侧装载刀片包括第一刀片部分和第一连接柱,并且顶部装载刀片包括第二刀片部分和第二连接柱。
    • 7. 发明授权
    • Snow-gliding apparatus
    • 滑翔装置
    • US06290249B1
    • 2001-09-18
    • US09518231
    • 2000-03-02
    • Andrew Wolf
    • Andrew Wolf
    • A63C599
    • A63C5/0422A63C5/03A63C5/126
    • A snow-gliding apparatus is provided. The snow-gliding apparatus includes an elongate member having an intermediate portion positioned between a pair of upturned end portions, and a bottom surface with a substantially planar bottom region configured to slide over snow. The apparatus further includes a traction member positioned above the elongate member, and a channel extending at least partially along the bottom surface of the elongate member. The channel is configured to guide the elongate member over the snow. The traction member typically is a pliant foam layer. A plurality of channels may be formed in the bottom surface of the elongate member.
    • 提供了一种滑雪装置。 滑雪装置包括细长构件,该细长构件具有定位在一对向上翻转的端部之间的中间部分和具有构造成在雪上滑动的基本平坦的底部区域的底表面。 该装置还包括定位在细长构件上方的牵引构件,以及至少部分地沿着细长构件的底表面延伸的通道。 通道构造成将细长构件引导到雪上。 牵引构件通常是柔韧的泡沫层。 可以在细长构件的底表面中形成多个通道。