Hammertoe Implant with Asymmetrical Head
AssigneeArrowhead Medical Device Technologies, LLC
InventorsScott R. Roman, Thomas J. Twardzik
Life of this patent
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Abstract
An intramedullary fixation device used in bone fixation and stabilization on a patient includes a longitudinally extending rigid body and a distal head disposed at a distal end of the body. The distal head includes a central core portion and a plurality of extending distal wings radially projecting from the central core portion, wherein the radially projecting distal wings are spaced asymmetrically about the central core portion. A proximal head at a proximal end of the body and sized for insertion into an intramedullary canal of a phalanx of the patient. The proximal head includes a central core portion and a plurality of proximal wings extending radially outwardly from the central core portion.
Claims17
An intramedullary fixation device used in bone fixation and stabilization on a patient, comprising:
- a longitudinally extending rigid body having a rigidity sufficient to withstand bending loading applied by the phalanges, the rigid body having a longitudinal axis extending through at a least a portion of the body;
- a distal head disposed at a distal end of the body and sized for insertion into an intramedullary canal of a phalanx of the patient, the distal head having a central core portion and a plurality of extending distal wings radially projecting from the central core portion, wherein the radially projecting distal wings are spaced asymmetrically about the central core portion;
- and
- a proximal head at a proximal end of the body and sized for insertion into an intramedullary canal of a phalanx of the patient, the proximal head having central core portion and a plurality of proximal wings extending radially outwardly from the central core portion.
An intramedullary fixation device used in bone fixation and stabilization on a patient, comprising:
- a longitudinally extending rigid body having a rigidity sufficient to withstand bending loading applied by the phalanges, the rigid body having a longitudinal axis extending through at a least a portion of the body;
- a distal head disposed at a distal end of the body and sized for insertion into an intramedullary canal of a phalanx of the patient, the distal head having a central core portion and at least three radially extending distal wings radially projecting from the central core portion, two of the wings forming a planar surface extending entirely across the width of the distal head;
- and
- a proximal head at a proximal end of the body and sized for insertion into an intramedullary canal of a phalanx of the patient, the proximal head having central core portion and a plurality of proximal wings extending radially outwardly from the central core portion.
Dependencies are inferred from the claim text.