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    • 10. 发明授权
    • Retractable surgical scalpel
    • 可伸缩手术刀
    • US6015419A
    • 2000-01-18
    • US143833
    • 1998-08-31
    • Scott E. StromeEdward T. Joseph
    • Scott E. StromeEdward T. Joseph
    • A61B17/32
    • A61B17/3211A61B2017/32113
    • A surgical instrument includes a hollow handle having an end slot and a side slot and a blade carrier securable to a scalpel blade and moveable between first and second positions relative to the handle. One of the first and second positions is an extended, in-use position wherein the scalpel blade extends out of the handle through the end slot. The other position is a retracted, non-use position wherein the scalpel blade is wholly disposed within the handle. At least one finger extends from the blade carrier and has a first contoured portion engageable, when the blade carrier is in the first position, with a second contoured portion of the handle. The first and second contoured portions are substantially complementary such that the finger must deflect to permit disengagement of the first contoured portion of the finger from the second contoured portion of the handle so that the blade carrier can be moved from the first position toward the second position. A locking cam is moveable between a locked position wherein the locking cam substantially inhibits deflection of the finger of the blade carrier and an unlocked position wherein the locking cam permits deflection of the finger of the blade carrier. A method of using this surgical instrument includes the steps of moving the locking cam to the unlocked position if the locking cam is in the locked position, moving the blade carrier from the first position to the second position or from the second position to the first position, and moving the locking cam to the locked position.
    • 手术器械包括具有端槽和侧槽的中空手柄,以及可固定至解剖刀刀片的刀片架,并可在相对于手柄的第一和第二位置之间移动。 第一和第二位置中的一个是延伸的使用中的位置,其中解剖刀刀片通过端槽延伸出手柄。 另一位置是缩回的非使用位置,其中解剖刀刀片完全设置在手柄内。 至少一个手指从刀片托架延伸并具有当刀片托架处于第一位置时可与手柄的第二轮廓部分接合的第一轮廓部分。 第一和第二轮廓部分是基本上互补的,使得手指必须偏转以允许手指的第一轮廓部分与手柄的第二轮廓部分脱离,使得叶片载体能够从第一位置向第二位置移动 。 锁定凸轮可在锁定位置之间移动,其中锁定凸轮基本上禁止叶片托架的手指的偏转和锁定凸轮允许叶片托架的手指偏转的解锁位置。 使用该外科器械的方法包括以下步骤:如果锁定凸轮处于锁定位置,则将锁定凸轮移动到解锁位置,将刀架从第一位置移动到第二位置或从第二位置移动到第一位置 ,并将锁定凸轮移动到锁定位置。