Midfoot bone replacement
OwnerAndrew J. Rader, D. Matthew Michaelinventors
Life of this patent
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Abstract
An replacement for a human includes a body having a superior surface, an inferior surface, a distal surface, and a proximal surface. The proximal surface is configured to engage the talus and the calcaneus of an adult human, and the distal surface configured to engage at least the first and fourth metatarsals of the adult human. The distal surface has a largest distal height and a largest distal width that is greater than the largest distal height, and the proximal surface has a largest proximal height and a largest proximal width that is greater than the largest proximal height.
Claims19
A replacement for a human midfoot, comprising:
- a body having a superior surface, an inferior surface, a distal surface, and a proximal surface, the proximal surface configured to engage the talus and the calcaneus of an adult human, the distal surface configured to engage at least the first and fourth metatarsals of the adult human, the distal surface having a largest distal height and a largest distal width that is greater than the largest distal height, the proximal surface having a largest proximal height and a largest proximal width that is greater than the largest proximal height;
- and
- wherein the body is configured to support adult human weight in physical activities when engaging the talus and the calcaneus.
A method of implanting a midfoot replacement in an adult human foot comprising:
- removing cuneiform, cuboid, and navicular bones from the adult human foot;
- and
- inserting a midfoot replacement having a body into the adult human foot such that a proximal surface of the body engages a calcaneus and a talus of the adult human foot, and a distal surface of the body engages a first metatarsal and a fourth metatarsal of the adult human foot, the distal surface having a largest distal height and a largest distal width, which is greater than the largest distal height, the proximal surface having a largest proximal height and a largest proximal width, which is greater than the largest proximal height.
A kit comprising:
- a first replacement for a human midfoot, which comprises a body having a superior surface, an inferior surface, a distal surface, and a proximal surface, the proximal surface configured to connect to the talus and the calcaneus of an adult human, the distal surface configured to connect to at least the first and fourth metatarsals of the adult human, the distal surface having a largest distal height and a largest distal width that is greater than the largest distal height, the proximal surface having a largest proximal height and a largest proximal width that is greater than the largest proximal height;
- and
- at least two fixating fasteners configured to affix the body to the talus, calcaneus, and the first and fourth metatarsals.
Dependencies are inferred from the claim text.