US 11,311,392 B2Granted

Modular femoral trialing system permitting relative movement

AssigneeHowmedica Osteonics Corp.

InventorsNiraj Maniar, Kevin Froster, Charles Jacob Shotmeyer

Life of this patent

Estimating the term…

Loading patent…

Abstract

An assembly for attachment to a first implant component has a size and shape of a second implant component to be implanted together with the first implant component. The assembly includes a first body and a second body removably connected to the first body. In a temporary configuration, the first and second bodies are prevented from separating while the first and second bodies permit relative movement therebetween. A modular kit includes a plurality of the first bodies each having a different size or shape, and a plurality of the second bodies each having a different size or shape. A method of assembling the assembly includes removably connecting the first body to the second body, such that the first and second bodies are prevented from separating while permitting relative movement therebetween, and positioning the assembly on the first implant component.

Claims17

Dependent claims

An assembly for attachment to a first implant component, the assembly having a size and shape of a second implant component to be implanted together with the first implant component, comprising:

a first body;
and
a second body removably connectable to the first body;
the first body defines a recess and the second body includes a protrusion insertable into the recess;
the protrusion includes a terminal end and an external surface defining a non-threaded portion and defining a threaded portion that is located closer to the terminal end of the protrusion than its non-threaded portion is;
and
the recess includes a terminal end and an internal surface defining a non-threaded portion and defining a threaded portion that is located closer to the terminal end of the recess than it's non-threaded portion is;
wherein in a temporary configuration, when the second body is removably connected to the first body, the first and second bodies are prevented from separating while the first and second bodies permit relative movement therebetween;
and
when the assembly is in the temporary configuration, the entire threaded portion of the protrusion is located within the recess past the threaded portion of the recess.

7 more elements

An assembly for attachment to a first implant component, the assembly having a size and shape of a second implant component to be implanted together with the first implant component, comprising:

A first body;
and
A second body removably connectable to the first body;
The first body defines a recess and the second body includes a protrusion insertable into the recess:
The protrusion includes a terminal end and an external surface defining a non-threaded portion and defining a threaded portion that is located closer to the terminal end of the protrusion than its non-threaded portion is;
and
the recess includes a terminal end and in internal surface defining a non-threaded portion and defining a threaded portion that is located closer to the terminal end of the recess than its non-threaded portion is;
and
wherein when the assembled together, the first and second bodies correspond to a cone body of a femoral hip assembly as the second implant component.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/282,866Filed 22 Feb 2019
Published: US 2020/0268527 A127 Aug 2020
Granted: 26 Apr 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

A61F 2/4684
Special tools for implanting artificial joints: trial or dummy prostheses
A61F 2/3609
Femoral heads ; Femoral endoprostheses: femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
A61F 2/3662
Femoral heads ; Femoral endoprostheses: femoral shafts
A61F 2/367
Femoral shafts: proximal or metaphyseal parts of shafts