Bone structure coupling systems and methods of use
Inventors
Compton, Robert A. • Willits, Mark Billy
Assignees
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Publication Number
US-11666362-B2
Publication Date
2023-06-06
Expiration Date
Abstract
Bone structure coupling devices and methods are provided herein. An example method includes positioning a tubular retraction guide body into a patient, the tubular retraction guide body having two prongs that are positioned in a joint between two adjacent bone structures, creating a hemispherical groove on each of the two adjacent bone structures using a drill bit passed through the tubular retraction guide body, incising out the hemispherical grooves with a broach passed through the tubular retraction guide body, and inserting a graft body having a generally rectangular cross sectional area into the angular grooves to couple the two adjacent bone structures together.
Core Innovation
The invention relates to a system for coupling bone structures using a generally rectangular graft body having at least four sidewalls and a plurality of rows of teeth extending circumferentially and continuously around each sidewall. The rows of teeth extend orthogonal to a direction of insertion, and the graft body is configured for insertion in a pilot hole that includes two grooves created as trenches on outer surfaces of opposing bone structures.
In the coupled configuration, the graft body extends transversely to the opposing bone structures and is situated within the two grooves such that all of the at least four sidewalls contact a portion of the opposing bone structures. The system further includes an inserter device interface with a plurality of arcuate shaped sidewalls that form a protrusion, enabling insertion of the graft body in relation to the pilot hole.
The system also includes a broach and drill bit arrangement to form the pilot hole geometry. A broach incises a spaced-apart aperture created by a drill bit, where the spaced-apart aperture includes hemispherical grooves formed into opposing bone structures, and the broach incises out the hemispherical grooves to create a pilot hole comprising two grooves with trenches on outer surfaces of opposing bone structures. The graft body is then inserted into the two grooves, and it can include apertures configured to allow bone growth.
Claims Coverage
The partial content includes two independent claims. Across these, the coverage centers on a generally rectangular graft body with at least four sidewalls and circumferential rows of teeth inserted into a pilot hole defined by two grooves or trenches, and an associated broach and drill-bit arrangement to form hemispherical grooves and convert them into a pilot hole for graft insertion.
Rectangular graft body with circumferential continuous teeth for pilot-hole insertion
A graft body comprising a generally rectangular cross sectional area and at least four sidewalls, the graft body comprising a plurality of rows of teeth extending circumferentially and continuously around each of the at least four sidewalls, the plurality of rows of teeth being orthogonal to a direction of insertion of the graft body, the graft body being configured for insertion in a pilot hole, the pilot hole comprising two grooves, each of the two grooves comprising a trench created on an outer surface of opposing bone structures, the graft body extending transversely to the opposing bone structures and situated within the two grooves such that all of the at least four sidewalls of the graft body contact a portion of the opposing bone structures.
Inserter device interface with arcuate shaped sidewalls forming a protrusion
An inserter device interface that comprises a plurality of arcuate shaped sidewalls that form a protrusion.
Broach incising a spaced-apart aperture to create hemispherical-groove-based pilot hole
A broach for incising a spaced-apart aperture created by a drill bit, the spaced-apart aperture having hemispherical grooves that are formed into opposing bone structures, the broach incising out the hemispherical grooves to create a pilot hole, the pilot hole comprising two grooves, each of the two grooves comprising a trench created on an outer surface of opposing bone structures.
Rectangular graft body inserted transversely into two-groove pilot hole with all sidewalls contacting bone
A graft body having at least four sidewalls and a plurality of rows of teeth, the plurality of rows of teeth extending circumferentially and continuously around each of the at least four sidewalls, and being orthogonal to a direction of insertion of the graft body, the graft body comprising an inserter device interface comprising a plurality of arcuate shaped sidewalls that form a protrusion the graft body being configured for insertion in the pilot hole, wherein all of the at least four sidewalls contact a portion of the opposing bone structures and the graft body extends transversely to the opposing bone structures and situated within the two grooves.
Across the two independent claims, the main inventive structure is a rectangular, multi-sidewall graft body with circumferential continuous tooth rows orthogonal to insertion, configured to be inserted transversely into a pilot hole defined by two grooves or trenches created in opposing bone structures. The system also includes an inserter device interface with arcuate shaped sidewalls forming a protrusion, and a broach that incises hemispherical-groove-based apertures to create the pilot hole for graft insertion.
Stated Advantages
Documented Applications
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