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US 9,192,390 B2Granted
Surgical saw blade
AssigneeDePuy Synthes Products, Inc.
InventorsEddy H. delRio, David Narducci
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a surgical cutting device configured to drive a removable surgical saw blade in oscillating rotation. The saw blade is held within the cutting device at a holding member and a clamping member and removeabley attached to a drive plate.
Claims20
A surgical saw apparatus comprising:
- a holding member including an outer surface and an elongated slot open at a first end, wherein the elongated slot includes spaced apart elongated sides, a holding surface extending between the elongated sides, and an end surface at a second end, opposite the first end of the elongated slot;
- a clamping member having a clamping surface disposed adjacent the elongated slot and movable within the elongated slot;
- a releasing pin having a first end, rigidly attached to the clamping member and slidably attached to the holding member, a second end disposed away from the clamping member and the holding member, and an axis extending between the first and second ends;
- a housing;
- and
- a sleeve holding the releasing pin to slide parallel to the axis of the releasing pin, wherein the sleeve is mounted within the housing to rotate about the axis of the releasing pin,
- wherein moving the releasing pin relative to the holding member, in a releasing direction, parallel to the axis of the releasing pin, moves the clamping surface away from the holding surface.
4 more elements
A surgical saw apparatus comprising:
- a housing;
- a drive plate;
- a holding member mounted to rotate about an axis of rotation, wherein the holding member is held within an engaged position to rotate with the drive plate, and wherein the holding member is additionally movable into a released position to rotate independently from the drive plate;
- a clamping member mounted to rotate with the holding member about the axis of rotation, wherein the clamping member is held on the holding member in a clamping position, wherein the clamping member is movable away from the holding member into an open position, wherein the holding member and the clamping member in the clamping position form an elongated slot, having an open end, for holding a shank of a surgical saw blade having a blade portion extending outward from the open end of the elongated slot, and wherein the holding member and the clamping member in the clamping position form an elongated slot for releasing the shank of a surgical saw blade for removal through the open end of the elongated slot;
- and
- a releasing pin holding the holding member in the engaged position while additionally holding the clamping member in the clamping position, wherein the releasing pin is movable into a released position, wherein the releasing pin in the released position holds the holding member in the released position and the clamping member in the open position.
3 more elements
A surgical saw apparatus comprising.
- a surgical saw blade;
- a housing;
- a drive plate, mounted in the housing to rotate about an axis of rotation, driven in oscillating rotation, having a groove radially displaced from the axis of rotation and a central hole coaxial with the axis of rotation having an inward-extending flange facing opposite a releasing direction;
- a holding member, releasably holding the surgical saw blade and including a tooth extending toward the drive plate, where the holding member is mounted in the housing to rotate about the axis of rotation, to slide along the axis of rotation in the releasing direction from an engaged position, in which the tooth is held within the groove to a released position, in which the tooth is held away from the groove, and opposite the releasing direction;
- a releasing pin, extending along the axis of rotation between a first end, operatively connected to the holding member, and a second end extending outward from the drive plate and from the housing, the releasing pin including an outward-extending flange facing the releasing direction;
- and
- a compression spring, extending around the releasing pin between an inward-extending flange of the drive plate and the outward-extending flange of the releasing pin.
4 more elements
Dependencies are inferred from the claim text.