Patent ID: 8628581

Claim:
A medical implant, comprising: a headless body configured to fit snugly into a sinus tarsi of a subtalar joint in a human foot, the body comprising: a first end having a first diameter; a second end having a second diameter; at least one continuous and uninterrupted thread including a crest with a substantially flat surface and having a substantially constant thread height and helically traversing a length of an exterior surface of the body, the length spanning from the first end to the second end; a recessed engagement in the first end; and wherein: a circumference of the exterior surface tapers from the first diameter to the second diameter along the length of the body; and the thread includes a leading flank spanning from the crest to a thread root and a trailing flank spanning from the crest to the thread root, the leading flank separated from the trailing flank by a narrowing clearance therebetween.