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US 11,969,352 B2Granted
Orthopaedic knee implant system with controlled stiffness
AssigneeDepuy Ireland Unlimited Company
InventorsStephen E. White, William J. Maloney
Life of this patent
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Abstract
A tibial implant includes one or more stiffness-modifying features to reduce the stiffness of one or more sections of the tibial implant. The stiffness-modifying features may include slots, recesses, or passageways defined in various locations of the tibial implant to selectively reduce the stiffness of a tibial insert and/or tibial base of the tibial implant.
Claims13
A tibial insert of a tibial implant, the tibial insert comprising:
- a medial articular surface;
- a lateral articular surface;
- a central body formed between the medial articular surface and the lateral articular surface;
- an inner wall defining (i) a passageway extending into the central body and (ii) a groove defined on a top surface of the central body, wherein the groove is in fluid communication with the passageway;
- and
- a therapeutic agent disposed in the passageway,
- wherein the groove is defined by a pair of tabs of the central body that are movable into the passageway in response to a force applied to the tabs, and wherein the tabs cause a release of the therapeutic agent from the passageway in response to being moved into the passageway.
4 more elements
A tibial insert of a tibial implant, the tibial insert comprising:
- a medial articular surface;
- a lateral articular surface;
- and
- a central body formed between the medial articular surface and the lateral articular surface, wherein the central body includes (i) an elongated groove located between the medial articular surface and the lateral articular surface, (ii) central passageway in fluid communication with the elongated groove, (iii) a therapeutic agent carrier located within the passageway, the therapeutic agent carrier including a therapeutic agent, and (iv) a first tab and second tab defined by the elongated groove, wherein each of the first and second tab is movable, in response to an applied force, into contact with the therapeutic agent carrier located within the passageway to cause the therapeutic agent carrier to release the therapeutic agent.
1 more element
Dependencies are inferred from the claim text.