Humeral nail

A method of consolidating bone fragments of a humeral head, the method comprising the steps of:

• sliding a hollow sheath axially along an external surface of a proximal part of a humeral nail;
• positioning the hollow sheath in a free passage position such that first portions of a plurality of openings on the hollow sheath correspond approximately with a plurality of orifices on the proximal part of the humeral nail, and second portions of the plurality of openings on the hollow sheath are at least partially offset from the orifices, wherein the first portions of the openings comprise diameters that corresponds approximately to diameters of the orifices, and the second portions with a cross-section less than the diameter of the orifices;
• inserting the humeral nail into a medullary canal of a humerus;
• aligning at least one of the orifices in the proximal part of the humeral nail with at least one bone fragment;
• inserting at least one screw in one of the orifices;
• engaging threads on at least one screw with at least one bone fragment of the humeral head;
• rotating the screw to consolidate the bone fragment to the humeral head;
• sliding the hollow sheath axially along the proximal part of the humeral nail to a locking position;
• and
• engaging at least one edge of the second portions of the openings on the hollow sheath with the screw.

A method of consolidating bone fragments of a humeral head, the method comprising:

• sliding a hollow sheath axially along a surface of a proximal part of a humeral nail;
• positioning the hollow sheath in a free passage position such that first portions of a plurality of openings on the hollow sheath correspond approximately with a plurality of orifices on the proximal part of the humeral nail, and second portions of the plurality of openings on the hollow sheath are at least partially offset from the orifices, wherein the first portions of the openings comprise diameters that corresponds approximately to diameters of the orifices, and the second portions with a cross-section less than the diameter of the orifices;
• inserting the humeral nail into a medullary canal of a humerus;
• aligning at least one of the orifices in the proximal part of the humeral nail with at least one bone fragment;
• inserting at least one screw in one of the orifices;
• engaging threads on at least one screw with at least one bone fragment of the humeral head;
• rotating the screw to consolidate the bone fragment to the humeral head;
• sliding the hollow sheath axially along the proximal part of the humeral nail to a locking position;
• and
• engaging at least one edge of the second portions of the openings on the hollow sheath with the screw.

A method of consolidating bone fragments of a humeral head, the method comprising:

• sliding a hollow sheath axially along a surface of a proximal part of a humeral nail;
• positioning the hollow sheath in a free passage position such that first portions of a plurality of openings on the hollow sheath correspond approximately with a plurality of orifices on the proximal part of the humeral nail, and second portions of the plurality of openings on the hollow sheath are at least partially offset from the orifices, wherein the first portions of the openings comprise diameters that corresponds approximately to diameters of the orifices, and the second portions with a cross-section less than the diameter of the orifices;
• inserting the humeral nail into a medullary canal of a humerus;
• aligning at least one of the orifices in the proximal part of the humeral nail with at least one bone fragment;
• inserting at least one screw in one of the orifices;
• engaging threads on at least one screw with at least one bone fragment of the humeral head;
• rotating the screw to consolidate the bone fragment to the humeral head;
• rotating the hollow sheath around the humeral nail to a locking position;
• and
• engaging at least one edge of the second portions of the openings on the hollow sheath with the screw.