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US 11,559,407 B2Granted
Wrist implants
AssigneeThe Penn State Research Foundation
InventorsShane Rothermel, Scott Tucker
Life of this patent
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Abstract
The present invention provides a prosthetic wrist implant comprising: a radial implant component having an elongated radial stem extending proximally adapted for attachment to radius, a carpal implant component having a distal surface adapted for attachment to one or more carpal bones, and a interposed component between the radial implant component and the carpal implant component that is flexible and allows for changes in orientation between the radial component and the carpal components relative to each other component.
Claims7
A prosthetic wrist implant comprising:
- a radial component positioned proximal to a carpal component, the radial component having an elongated radial stem extending in a proximal direction configured to attach to a radius bone, and the carpal component having a distal surface configured to attach to one or more carpal bones;
- and
- an interposed component positioned between the radial component and the carpal component, the interposed component attached to the carpal component by a mobile connection rotatable about a first axis, and to the radial component by a mobile connection rotatable about a second axis, the first axis and the second axis being orthogonal to each other,
- wherein the interposed component comprises a spherical component having a first groove and a second groove embedded on an outer surface of the spherical component, the first groove being aligned along a curve of a first great-circle of the spherical component, the second groove being aligned along a curve of a second great-circle of the spherical component, and wherein a plane of the first great-circle and a plane of the second great-circle are orthogonal to each other.
1 more element
Dependencies are inferred from the claim text.