Surgery – Truss – Pad
Patent
1974-09-30
1976-03-16
Pace, Channing L.
Surgery
Truss
Pad
24223, 30339, 403321, A61B 1714
Patent
active
039439348
ABSTRACT:
A quick release device for a powered surgical instrument, for example, a Mueller osteotomy saw, includes a coupling having a spindle which forms a mounting surface, the spindle being driven with the coupling by the power source. Located on the spindle is a locking pin assembly movable between a locking and an unlocking position, the spindle cooperating with a plurality of concentrically disposed latching pins which latch the medical instrument to the spindle in driving relationship therewith. The medical instrument, for example, a saw blade, includes a predetermined number of apertures corresponding to the number of latching pins on the spindle, each of the apertures including a pin receiving end and a latching end. Eccentrically positioned with respect to the apertures is a locking pin receiving aperture through which the locking pin on the spindle is received. The instrument is assembled over the locking pin which has been depressed, moved such that the latching pins are received by the latching pin apertures, and then manipulated such that the latching pins are urged into the latching end of the apertures. Upon release of the now aligned locking pin which includes an outer tapered surface, the mounted instrument is fixed and locked with respect to the spindle. To release the instrument, or to alter its position, the locking pin is depressed, the instrument moved such that the latching pins are aligned with the pin receiving portion of the apertures, and the instrument can either be rotated by relocating same to its desired position or replaced by another instrument.
REFERENCES:
patent: 726732 (1903-04-01), Nelson
patent: 2422693 (1947-06-01), McArthur
patent: 2557364 (1951-06-01), Treace
patent: 2783537 (1957-03-01), Gringer
patent: 3554197 (1971-01-01), Dobbie
Minnesota Mining and Manufacturing Company
Pace Channing L.
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