US 10,500,055 B2Granted

Anterior stabilized knee implant

AssigneeDepuy Ireland Unlimited Company

InventorRichard David Komistek

Life of this patent

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Abstract

A posterior cruciate ligament retaining knee implant prosthesis comprising a femoral component including a medial condyle and a lateral condyle separated from one another by an intercondylar channel adapted to accommodate throughput of a native cruciate ligament, both the medial condyle and the lateral condyle posteriorly terminate individually, the medial condyle including a medial condyle bearing surface and the lateral condyle including a lateral condyle bearing surface, the femoral component including an anterior cam, and a tibial component including a medial condyle receiver having a medial condyle receiver bearing surface, the tibial component also including a lateral condyle receiver having a lateral condyle receiver bearing surface, the tibial component also including an anterior post.

Claims10

Dependent claims

A total knee implant prosthesis comprising:

a femoral component including a pair of condyles, an arcuate bridge connecting the pair of condyles, an opening defined between the arcuate bridge and the pair of condyles, and an anterior cam spaced apart from the arcuate bridge, the anterior cam extending between the pair of condyles adjacent to the opening, and
a tibial component including a first condyle depression, a second condyle depression, and a post positioned between the first condyle depression and the second condyle depression, the post having an anterior surface,
wherein the anterior cam and the post are sized, shaped, and positioned so that the anterior cam and the anterior surface of the post are engaged when the knee is fully extended and the anterior cam and the anterior surface of the post are disengaged during at least part of flexion of the knee, and wherein an open gap is defined between the anterior cam and the arcuate bridge.

Dependencies are inferred from the claim text.

Facts

Application: 15/972,865Filed 7 May 2018 · continuation
Priority: 7 May 2009
Published: US 2018/0250137 A16 Sep 2018
Granted: 10 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

A61F 2/3886
For elbows or knees: for stabilising knees against anterior or lateral dislocations
A61F 2/3859
For elbows or knees: femoral components
A61F 2/3868
For elbows or knees: with sliding tibial bearing
A61F 2/3877
For elbows or knees: patellae or trochleae

Family

Application12/437,000Parent of this division · filed 7 May 2009
Application14/574,617Parent of this continuation · filed 18 Dec 2014
US 8,915,965 B2Parent of this division · filed 23 Dec 2014
Application15/203,429Parent of this continuation · filed 6 Jul 2016
US 9,408,703 B2Parent of this continuation · filed 9 Aug 2016
US 9,962,264 B2Parent of this continuation · filed 8 May 2018
US 2018/0250137 A1Pre-grant publication · published 6 Sep 2018
Application14/574,617Parent of this division
US 2010/0286788 A1Published application
US 2015/0127111 A1Published application
US 2016/0310284 A1Published application
US 10,500,055 B2This patent

From the US filing history. Foreign family members aren’t listed.

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