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US 9,173,695 B2Granted
Bone fastener assembly instrument
AssigneeParadigm Spine, LLC
InventorsMarkus Salvermoser, Stephan Eckhof, Sven Oliver Muckenfuss, Jason E. Garber
Life of this patent
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Abstract
A bone fastener assembly instrument that can assemble a two-component bone fastener during surgery is provided. The bone fastener may be of a type that comprises a threaded bolt and nut for securing an implantable device to bone, such as a spinous process. A method for using the bone fastener assembly instrument is also provided.
Claims15
An instrument for assembling a two-component bone fastener comprising:
- a pair of first and second handles, the first handle extending into a first arm and the second handle extending into a second arm, each arm terminating in a working end configured to hold a component of the bone fastener;
- a bias spring positioned between and contacting the first and second handles;
- a transmission releasably connected to the first arm and comprising a drive train for rotating one of the components;
- and
- a releasable catch between the first handle and the second arm for maintaining the second arm in a retracted position relative to the first arm during insertion and an expanded position relative to first the arm during assembly.
2 more elements
Dependencies are inferred from the claim text.