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US 7,621,921 B2Granted
Split thread orthopaedic implant impactor
AssigneeSymmetry Medical, Inc.
InventorBrad A. Parker
Life of this patent
Estimating the term…
Abstract
An orthopaedic implant impactor which includes a shaft having a proximal end and a distal end. A trigger is pivotably connected to the distal end, the trigger having a cam end. A push rod is within the shaft and is connected to the cam end of the trigger.
Claims13
An orthopaedic implant impactor, comprising:
- a shaft having a proximal end and a distal end;
- a trigger pivotably connected to said distal end, said trigger including a cam end;
- and
- a push rod within said shaft and connected to said cam end of said trigger;
- a nonthreaded wedge associated with said push rod, said wedge including a first wedge face, a second wedge face, and a slot extending from said first wedge face to said second wedge face, said slot configured for receiving a coupling pin;
- and
- an impaction collar subassembly connected to said push rod, said impaction collar subassembly including an impaction collar and a threaded pair, said wedge being inserted between said threaded pair, said threaded pair and said wedge being held at least partially within said impaction collar, said threaded pair including a first half with a first wedge end which has a first hole and a second half with a second wedge end which has a second hole, said impaction collar subassembly further including said coupling pin inserted through said first hole, said second hole, and said slot and connected to said impaction collar.
4 more elements
An orthopaedic implant impactor, comprising:
- a trigger having a cam end;
- a push rod connected to said cam end of said trigger;
- a shaft having a proximal end and a distal end, said push rod extending substantially from said proximal end to said distal end, said shaft including an aperture exposing said push rod along a substantial length of said push rod;
- and
- a nonthreaded wedge associated with said push rod, said wedge including a first wedge face, a second wedge face, and a slot extending from said first wedge face to said second wedge face, said slot configured for receiving a coupling pin;
- and
- an impaction collar subassembly connected to said push rod, said impaction collar subassembly including an impaction collar and a threaded pair, said wedge being inserted between said threaded pair, said threaded pair and said wedge being held at least partially within said impaction collar, said threaded pair including a first half with a first wedge end which has a first hole and a second half with a second wedge end which has a second hole, said impaction collar subassembly further including said coupling pin inserted through said first hole, said second hole, and said slot and connected to said impaction collar.
4 more elements
Dependencies are inferred from the claim text.