US 10,744,005 B2Granted

Method and apparatus for implanting a knee prosthesis

AssigneeBiomet Manufacturing, LLC

InventorsNathan Emick Belcher, Bradley T. Durcholz

Life of this patent

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Abstract

A method for preparing a femur for receiving a prosthesis. The method includes the following: fixing a femoral trial component to the femur; coupling a reamer bushing relative to the femoral trial component; reaming a cavity into the femur using the reamer bushing as a guide; coupling at least one of a modular femoral box trial and a stem adapter relative to the femoral trial component; trialing the femoral trial component with the articulating surface of the femoral trial component; and performing the coupling of the reamer bushing, the reaming of the cavity, the coupling of the at least one of the modular femoral box trial and stem adapter, and the trialing of the femoral trial component all while the femoral trial component remains fixed to the distal femur.

Claims6

Dependent claims

A system for preparing a tibia for receiving a prosthesis, the system comprising:

a tibial template with a locating bore and a first plurality of teeth located around a circumference of the locating bore;
a plurality of positioning coins positionable and rotatable within the locating bore to determine a desired tibial offset, each positioning coin having a throughbore, each positioning coin further including first and second locating apertures, the first and second locating apertures configured to receive a tool so that the positioning coin can be rotated within the locating bore;
a reamer to prepare a cavity in a tibia;
a plurality of reamer sleeves each having a throughbore concentric with the throughbore of one of the plurality of positioning coins, the reamer sleeves positionable in the locating bore after removal of the positioning coin and used to guide the reamer to prepare the cavity in the tibia wherein each reamer sleeve includes a second plurality of teeth around a circumference of the reamer sleeve and configured to mate with the first plurality of teeth on the tibial template.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 15/680,813Filed 18 Aug 2017 · continuation
Priority: 6 Jun 2011
Published: US 2017/0340458 A130 Nov 2017
Granted: 18 Aug 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

A61F 2/4684
Special tools for implanting artificial joints: trial or dummy prostheses
A61B 17/155
For preparing bone for knee prosthesis: cutting femur
A61B 17/157
For preparing bone for knee prosthesis: cutting tibia
A61B 17/1675
For particular parts of the body: for the knee

Family

Application13/153,983Parent of this continuation · filed 6 Jun 2011
Application14/626,398Parent of this continuation · filed 19 Feb 2015
US 2017/0340458 A1Pre-grant publication · published 30 Nov 2017
US 9,770,345 B2Parent of this continuation
US 8,979,847 B2Parent of this continuation
US 2012/0310246 A1Published application
US 2015/0157472 A1Published application
US 10,744,005 B2This patent

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