Dentistry – Apparatus – Hand manipulatable implement
Patent
1980-01-17
1981-08-04
Peshock, Robert
Dentistry
Apparatus
Hand manipulatable implement
30339, 128305, A61C 302
Patent
active
042819903
ABSTRACT:
A blade locking mechanism formed integrally on the end of an elongated instrument handle permitting available slot mounted disposable surgical blades to be attached perpendicular to the axis of the handle service end for use as a knife in applications such as oral surgery. A cleat formed in the service end of the handle projects therefrom in line with the axis of the handle end. The base of the cleat has a rectangular cross-section sized to have a sliding fit within the minimum slot dimension of the disposable blade, and of a length greater than the thickness of the blade. The horns of the cleat lie in a plane perpendicular to the handle service end and are sized to pass easily through the maximum blade slot dimension when in line therewith, but prevent removal of the blade from under the cleat horns when the blade is turned 90.degree. to the axis of the cleat horns and the blade slot is fitted about the cleat base. A locking collar engages threads formed on the handle end adjacent to the cleat, and is movable along the axis of the handle end. The collar locks a disposable blade fitted under the cleat horns in place by clamping it between the collar and the underside of the cleat horns forming a unitized cutting instrument. Excess, base length of the installed disposable blade is trimmed away before use.
REFERENCES:
patent: 445237 (1891-01-01), Yankauer
patent: 2655723 (1953-10-01), Steele
patent: 3626592 (1971-12-01), La Cas
Peshock Robert
York Michael W.
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