Metatarsal fixation device, system and method

摘要

A metatarsal fixation device is provided for fixation of osteotomy or fracture of a distal metatarsal metaphysis bone of the human foot and for fixation of an associated capsule to the metatarsal head. The device includes a metallic bone plate with a series of screw holes along an elongated portion of the plate and a combination of a singular screw hole and a resilient clamp on an end of the elongated portion. The resilient clamp has two arched resilient arms extending laterally outward from an end of the elongated portion. Each arm has a plurality of spikes on an inner surface thereof providing points of contact that compress and attach a metatarsal phalangeal joint capsule portion to the medial and/or lateral aspect of the metatarsal head, thereby facilitating realignment of the metatarsophalangeal joint and respective digit. The resilient arms are biased to grasp lateral sides of a metatarsal head and any associated capsule portion.

主权项

1. A plate for fixing an osteotomy or fracture of a bone comprising:
an elongate portion defining a proximate end and a distal end, the elongate portion configured to extend along a shaft of the bone having the osteotomy or fracture; a plurality of threaded bores disposed along the elongate portion; a singular threaded bore disposed at the distal end of the elongate portion; a clamping portion disposed at the distal end of the elongate portion, the clamping portion having:
a first resilient arm extending outwardly and downwardly from a lateral side of the distal end of the elongate portion;a second resilient arm extending outwardly and downwardly from a medial side of the distal end of the elongate portion;a first plurality of attachment structures extending outwardly from a solid inner surface of the first resilient arm; anda second plurality of attachment structures extending outwardly from a solid inner surface of the second resilient arm; wherein the first and second resilient arms are normally biased to compress against the lateral and medial sides of a head of the bone having the osteotomy or fracture and any associated soft tissue; and a transition section disposed between the distal end of the elongate portion and the clamping portion, the transition section angled such that the clamping portion is offset from a longitudinal axis of the elongate portion.