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    • 8. 发明申请
    • SURGICAL INSTRUMENT AND METHOD FOR TISSUE RESECTION AND DISSECTION
    • 外科手术和组织分离和分离方法
    • WO2007044761A2
    • 2007-04-19
    • PCT/US2006039634
    • 2006-10-10
    • EVANSTON NORTHWESTERN HEALTHCAJOHNSTON WILLIAM K
    • JOHNSTON WILLIAM K
    • A61B18/14
    • A61B18/1482A61B18/22A61B2018/1435
    • A surgical instrument has an elongate shaft with a longitudinal shaft axis, a proximal grip end, and a distal working end. The shaft is rotatable about its longitudinal axis by user manipulation of the proximal grip end. The instrument has an energy source coupled to the surgical instrument. A tissue retainer is positioned at the distal working end of the shaft and is rotatable with the shaft. The retainer has a curved portion, a tissue holding space within the curved portion, and an entry opening into the holding space. The retainer and holding space define a retainer axis. The retainer is configured to be received over and at least partly circumvent a target structure of a surgical field received in the holding space via the entry opening. A surgical component is positioned on a portion of the retainer laterally offset from both the retainer axis and the holding space and is rotatable with rotation of the shaft and retainer. The surgical component is selectively energizeable by the energy source to dissect selected tissue contacting the surgical component.
    • 手术器械具有长轴的细长轴,近侧握柄端和远端工作端。 轴可以通过用户操纵近端握持端而围绕其纵向轴线旋转。 仪器具有耦合到外科器械的能量源。 组织保持器定位在轴的远端工作端,并可与轴一起旋转。 保持器具有弯曲部分,弯曲部分内的组织保持空间和进入保持空间的入口。 保持器和保持空间限定保持器轴。 保持器构造成经由入口开口接收并且至少部分地绕过容纳在容纳空间中的手术区域的目标结构。 手术部件定位在保持器轴线和保持空间两侧横向偏移的保持器的一部分上,并且可随着轴和保持器的旋转而旋转。 外科组件可选择性地通过能量源激励以解剖与外科组件接触的所选择的组织。