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US 12,727,926 B2Granted
Gripping and positioning tool for a spinal poly-axial screw insertion guide
AssigneeMedacta International SA
InventorsFrancesco Siccardi, Meinrad Fiechter, Yuri Insinna
Life of this patent
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Abstract
A gripping and positioning tool for a poly-axial screw insertion guide comprises a handle, a main body connected to the handle positioned at a first end of the main body and a coupling zone positioned at a second end of the main body. The coupling zone is able to vary its position with respect to the insertion guide keeping the application direction of the force applied by the surgeon to said instrument constant.
Claims6
A kit for holding and positioning a spinal poly-axial screw insertion guide comprising:
- a gripping and positioning tool comprising:
- a main body extending along a longitudinal axis and having a first end and a second end;
- a handle coupled to the first end of said main body;
- and
- a spherical joint disposed at a terminal end of the second end of said main body,
- wherein said main body extends entirely along said longitudinal axis, said handle and said spherical joint being in axial alignment with said main body, and
- wherein said spherical joint is configured for varying an angular position of the longitudinal axis of the main body with respect to the spinal poly-axial screw insertion guide while keeping an application direction of the applying force to the handle of the spinal poly-axial screw insertion guide constant when the gripping and positioning tool is used to grip and position a spinal poly-axial screw insertion guide,
- wherein the spherical joint comprises a central axis, and at least a portion of an outer surface of the spherical joint intersects the central axis;
- and
- a spinal poly-axial screw insertion guide comprising a housing defining a semispherical recess counter-shaped to the spherical joint of the gripping and positioning tool,
- wherein the spherical joint is configured to be directly coupled with and disposed within the semispherical recess of the spinal poly-axial screw insertion guide when the gripping and positioning tool is used to grip and position the spinal poly-axial screw insertion guide, and
- wherein the angular position of the longitudinal axis of the main body of the gripping and positioning tool is movable about a conical volume.
9 more elements
Dependencies are inferred from the claim text.