Surgical instrument
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 17, 1999
Grant Date -
N/A
app pub date -
Jun 11, 1997
filing date -
Jun 11, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surgical instrument (10) includes a handle (12), a rigid stem section (20) extending from the handle, and a flexible stem section (24) extending from the rigid stem section. A surgical tool (30) connected with a distal end of the flexible stem section (24) includes a movable part (34). The flexible stem section (24) comprises a plurality of relatively pivotable vertebrae (120-129) extending along the flexible stem section and an extension spring (150) extending axially through the plurality of vertebrae for transmitting axial load between the surgical tool (30) and the rigid stem section (20). An actuator cable (180) extends through the extension spring (150) and is connected with the movable tool part (34) for applying force to the movable tool part to move the movable tool part relative to the flexible stem section (24). The extension spring (150) carries the axial load on the flexible stem section (24).
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