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US 11,759,246 B2Granted
Stylet screw driver
AssigneeAstura Medical Inc.
InventorsKeith Klausman, Thomas Purcell, Anthony Valkoun
Life of this patent
Estimating the term…
Abstract
A stylet screw driver assembly having a screw driver/ratcheting handle assembly which houses a stylet, pre-assembled to a set length based on the screw length in use, fixed in place by a spring loaded button mechanism located on the proximal end of the ratcheting handle. The spring loaded button mates with the stylet assembly, providing various stylet protrusion lengths.
Claims17
A stylet screw driver assembly comprising:
- a body having a distal end configured to hold a spinal screw;
- a handle portion coupled to the body, the body and handle portion having a lumen therethrough;
- and
- a stylet assembly configured for insertion in the lumen, the stylet assembly is pre-assembled to a set stylet assembly length, the stylet assembly includes:
- a stylet portion with a distal end or tip;
- a screw length adjustment section slidingly coupled with the stylet portion to the set stylet assembly length;
- a stylet stop configured to engage the stylet portion to stop the distal tip at the set stylet assembly length;
- and
- a locking mechanism configured to lock the stylet portion at the set stylet assembly length;
- wherein the handle portion includes a stylet tip length adjustment mechanism, and the stylet assembly includes a tip length adjustment portion configured to engage the stylet tip length adjustment mechanism to make adjustments to a different tip protrusion length if needed.
7 more elements
A stylet screw driver assembly comprising:
- a body having a distal end configured to hold a spinal screw;
- a handle portion coupled to the body, the body and handle portion having a lumen therethrough;
- and
- a stylet assembly configured for insertion in the lumen, the stylet assembly is pre-assembled to a set stylet assembly length based on a spinal screw length, the stylet assembly includes:
- a stylet portion with a distal end or tip;
- a plurality of screw length slots spaced apart at set distances slidingly coupled with the stylet portion to the set stylet assembly length;
- a stylet stop configured to be placed in a screw length slot to stop the distal tip at the set stylet assembly length;
- and
- a locking mechanism configured to lock the stylet portion at the set stylet assembly length;
- wherein the handle portion includes a spring loaded button mechanism and the stylet assembly includes a plurality of tip length slots configured to engage the spring loaded button mechanism to lock the pre-assembled stylet assembly.
7 more elements
A stylet screw driver assembly comprising:
- a stylet screw driver having a lumen and a distal end configured to couple with a screw, and
- a stylet slidably positioned within the lumen, the stylet configured to extend distally from the distal end of the stylet screw driver;
- a stylet assembly configured to be pre-assembled to a set stylet assembly length based on a spinal screw length, the pre-assembled stylet assembly configured for insertion in the lumen, the stylet assembly includes:
- a stylet portion with a distal end or tip;
- a plurality of screw length slots spaced apart at set distances slidingly coupled with the stylet portion to the set stylet assembly length;
- a stylet stop configured to be placed in a screw length slot to stop the distal tip at the set stylet assembly length;
- and
- a locking mechanism configured to lock the stylet portion at the set stylet assembly length;
- wherein the stylet screw driver includes a handle portion having a spring loaded button mechanism and the stylet assembly includes a plurality of tip length slots configured to engage the spring loaded button mechanism to lock the pre-assembled stylet assembly.
6 more elements
Dependencies are inferred from the claim text.