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US 10,238,401 B2Granted
Microfracture apparatuses and methods
AssigneeArthrosurface Incorporated
InventorsGeorge J. Sikora, Steven Ek
Life of this patent
Estimating the term…
Abstract
Embodiments of apparatuses and examplary methods for microfracture (e.g. forming a plurality of microfractures in a bone to encourage cartilage regeneration).
Claims28
An apparatus comprising:
- a cannula having a first end, a second end, and a channel extending between the first end and the second end, the channel having a first transverse dimension between the first end and the second end and having a second transverse dimension at the second end that is smaller than the first transverse dimension, where the first transverse dimension is disposed at a point that is closer to the second end than to the first end;
- and
- a penetrator having a distal end and a first transverse dimension, the penetrator configured to be disposed in the channel of the cannula such that the penetrator is movable between a retracted position and an extended position in which the distal end extends beyond the second end of the cannula by a penetration distance;
- where the penetrator is configured to be moved from the retracted position to the extended position substantially without rotation of the penetrator to form in subchondral bone a microfracture;
- and
- where the channel has a third transverse dimension that is larger than the second transverse dimension, and the channel is tapered from the third transverse dimension to the second end.
3 more elements
Dependencies are inferred from the claim text.