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US 2024/0189000 A1Published application
Intramedullary threaded nail for radial cortical fixation
AssigneeExsoMed Corporation
InventorsLloyd P. Champagne, Jozef Zoldos, Richard Thomas Briganti, Andrew J. Leither
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Abstract
The present invention relates to a device and system for fixation of intra-articular and extra-articular fractures and non-unions of small bones and other small bone fragments, and more particularly to a threaded nail with a robust length and a trailing end with a cutting tip and longitudinal cutting flutes and a stepped diameter with cutting flutes at the transition point, and an optional cannulation along the central longitudinal axis of the nail.
Claims20
An intramedullary implant comprising:
- a first end portion with a first external diameter, the first end portion including a torque driving feature;
- a second end portion with a second external diameter, the second end portion including at least one cutting flute;
- and
- a transition portion between the first end portion and the second end portion, the transition portion including at least one cutting flute,
- wherein the intramedullary implant comprises a thread extending from the first end portion to the second end portion, and
- wherein the first external diameter is greater than the second external diameter.
3 more elements
An intramedullary implant comprising:
- a first end portion with a first external diameter, the first end portion including a torque driving feature;
- a second end portion with a second external diameter, the second end portion including at least one cutting flute;
- a transition portion between the first end portion and the second end portion, the transition portion including at least one cutting flute, and
- a cannula extending along a length of the intramedullary implant,
- wherein the intramedullary implant comprises a thread extending from the first end portion to the second end portion,
- wherein the first external diameter is greater than the second external diameter,
- wherein the second external diameter is 0.4 to 2 mm smaller than the first external diameter.
4 more elements
Dependencies are inferred from the claim text.