Scaphoid fixation with an anatomically designed staple
View Patent ↗A fixation for a mid-waist fracture of a scaphoid bone includes a top portion joined to two prongs. The top portion is bent to match a lateral curvature and an anteroposterior curvature of the scaphoid bone. A plurality of spikes are installed on the two prongs. When one inserts the fixation into the scaphoid bone, the plurality of spikes hold the fixation in place.
1. A fixation for mid-waist fracture of a scaphoid bone; the fixation comprising:
a top portion joined to two prongs; wherein the top portion is bent to match a lateral curvature and an anteroposterior curvature of the scaphoid bone; wherein the top portion is bent at a concave shape extending inward towards the scaphoid bone; wherein the top portion further comprises:
a forward top side connected to a proximal top side and a distal top side and a rearward side, attached to the proximal top side and the distal top side; wherein the forward top side, the proximal top side, the distal top side, and the rearward side are arranged in a quadrilateral to align with the lateral curvature and the anteroposterior curvature of the scaphoid bone; and
a plurality of spikes, installed on the two prongs; wherein inserting the fixation into the scaphoid bone causes the plurality of spikes to hold the fixation in place.
2. The fixation of claim 1 , wherein the fixation is sized such that an equal length of the top portion is to a proximal side of the mid-waist fracture and a distal side of the mid-waist fracture while the top portion is curved, such that, at as many points as possible, a forward distance and a rearward distance to edges of the scaphoid bone are approximately equal.
3. The fixation of claim 2 , wherein the fixation is shaped to form to a bone graft between a proximal scaphoid and a distal scaphoid.
4. The fixation of claim 3 , wherein the two prongs have a length that is about two thirds of a thickness of the scaphoid bone at a site of mid-waist fracture.
5. The fixation of claim 1 , wherein the fixation is shaped to form to a bone graft between a proximal scaphoid and a distal scaphoid.
6. A fixation for mid-waist fracture of a scaphoid bone; the fixation comprising:
a top portion joined to three prongs; wherein the top portion is bent to match a lateral curvature and an anteroposterior curvature of the scaphoid bone; wherein the top portion is bent at a concave shape extending inward towards the scaphoid bone; wherein the top portion further comprises: a forward top side connected to a proximal top side and a distal top side and a rearward side, attached to the proximal top side and the distal top side; wherein the forward top side, the proximal top side, the distal top side, and the rearward side are arranged in a quadrilateral to align with the lateral curvature and the anteroposterior curvature of the scaphoid bone;
a plurality of spikes, installed on the three prongs; wherein inserting the fixation into the scaphoid bone causes the plurality of spikes to hold the fixation in place;
a central top side, attached to the forward top side and the rearward side;
a forward prong, smoothly connected to the forward top side and further comprising a plurality of forward side teeth; and
a rear prong, smoothly connected to the rearward side and further comprising a plurality of rear side teeth, wherein one of the three prongs is a central prong, smoothly connected to the central top side and further wherein the plurality of spikes is a plurality of central side teeth, and wherein another of the three prongs is a second forward prong, smoothly connected to the forward top side and further wherein the plurality of spikes is a plurality of forward side teeth.