MICROFRACTURE APPARATUSES AND METHODS

摘要

Embodiments of apparatuses and examplary methods for microfracture (e.g. forming a plurality of microfractures in a bone to encourage cartilage regeneration).

主权项

1. 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; 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.