Systems and methods for using polyaxial plates
First Claim
Patent Images
1. An implant comprising:
- a first surface;
a second surface;
an aperture extending from the first surface to the second surface, the aperture including an inner surface and a central axis; and
a plurality of inwardly protruding fins defining a non-threaded opening for cooperating with a head portion of a bone fastener, each of the plurality of fins extending from the inner surface of the aperture towards the central axis of the aperture to a terminal end portion of the fin;
wherein each of the plurality of fins includes a first side surface and a second side surface, the first and second side surfaces having an inwardly tapered surface so that a distance between the first and second side surfaces adjacent to the inner surface is greater than a distance between the first and second side surfaces at the terminal end portion.
1 Assignment
0 Petitions
Accused Products
Abstract
Certain embodiments of the invention provide plates for treating periarticular fractures or other non-full body weight bearing applications that combine polyaxial fixation with a low profile and enhanced contouring that more closely conforms to bone. Such plates can be designed to achieve buttressing effect and/or to be used in a reinforcement mode. Other features can be combined with these. Such plates can be created for use on bone sites such as on a tibia, fibula, metatarsal, calcaneous, other foot bone, humerus, radius, ulna, spinal, maxillofacial, as well as sites on other bones.
-
Citations
8 Claims
-
1. An implant comprising:
-
a first surface; a second surface; an aperture extending from the first surface to the second surface, the aperture including an inner surface and a central axis; and a plurality of inwardly protruding fins defining a non-threaded opening for cooperating with a head portion of a bone fastener, each of the plurality of fins extending from the inner surface of the aperture towards the central axis of the aperture to a terminal end portion of the fin; wherein each of the plurality of fins includes a first side surface and a second side surface, the first and second side surfaces having an inwardly tapered surface so that a distance between the first and second side surfaces adjacent to the inner surface is greater than a distance between the first and second side surfaces at the terminal end portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification