Surgery – Instruments – Orthopedic instrumentation
Patent
1994-07-15
1996-07-02
Pellegrino, Stephen C.
Surgery
Instruments
Orthopedic instrumentation
606 85, A61B 1756
Patent
active
055317502
ABSTRACT:
An adjustable locking handle securely grips an associated surgical tool for fixing the tool to the handle. The tool has first and second coupling portions, while the handle has an elongated body with fixed and movable jaws thereon respectively adapted for engagement with the first and second coupling portions on the tool. The movable jaw is pivotally movable about a fixed axis between locking and unlocking conditions relative to the fixed jaw by means of a linkage including a locking lever pivotally mounted on the body and a release lever pivotally interconnecting the locking lever and the jaw. A cylindrical cam is disposed in a bore in the locking lever coaxially with the movable pivot axis of the lever, the cam being eccentrically mounted on a headed shaft on the body so that rotation of the shaft shifts the position of the movable pivot axis of the locking lever, thereby shifting the position of the linkage and the movable jaw in the locking and unlocking conditions thereof, to assure firm clamping of the tool, compensating for dimensional variations in the parts. A detent is associated with the shaft head to retain the cam in each of a plurality of rotational positions.
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Polaroid photograph of adjustable Vise-Grip Pliers made by Peterson.
Three Polaroid photographs of Kyocera surgical tool and associated locking handle.
Markow Scott B.
Pellegrino Stephen C.
Snap-on Incorporated
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