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    • 6. 发明申请
    • Structure for receiving surgical instruments
    • 接收手术器械的结构
    • US20070142857A1
    • 2007-06-21
    • US11634372
    • 2006-12-05
    • Gene DipotoWilliam SilverJohn Unger
    • Gene DipotoWilliam SilverJohn Unger
    • A61M29/00
    • A61B17/0218A61B17/0293A61B17/3439A61B2017/00261
    • A structure for receiving surgical instruments for performing a surgical procedure on a body includes a passage through which the surgical instruments are inserted into the body. The passage has a proximal end and a distal end. An expandable portion enables an increase in the cross-sectional area of the distal end of the passage. The expandable portion has a contracted condition in which the cross-sectional area of the distal end of the passage has a first cross-sectional area. The expandable portion has an expanded condition in which the distal end of the passage has a second cross-sectional area greater than the first cross-sectional area. The second cross-sectional area is greater than a cross-sectional area of the proximal end of the passage when the expandable portion is in the expanded condition. A retaining mechanism resists movement of the expandable portion from the expanded condition toward the contracted condition during the surgical procedure. The retaining mechanism is released at the conclusion of the surgical procedure to permit movement of the expandable portion from the expanded condition toward the contracted condition for removal of the structure.
    • 用于接收用于在身体上执行外科手术的外科器械的结构包括将外科器械插入身体的通道。 通道具有近端和远端。 可扩张部分能够增加通道的远端的横截面面积。 可膨胀部分具有收缩状态,其中通道的远端的横截面积具有第一横截面积。 可膨胀部分具有膨胀状态,其中通道的远端具有大于第一横截面积的第二横截面积。 当可膨胀部分处于膨胀状态时,第二横截面面积大于通道近端的横截面面积。 保持机构在外科手术期间阻止可扩张部分从扩张状态向收缩状态移动。 在外科手术结束时释放保持机构,以允许可扩张部分从膨胀状态向收缩状态移动以移除结构。