US 2012/0059376 A1 · COMPOSITE INTERNAL FIXATORS

Abstract

A multi-layer, fiber-reinforced composite orthopaedic fixation device having a design selected based on a desired characteristic of the orthopaedic fixation device. The design may be selected according to a model of the device, the model defining design constraints, and the design may comprise a pattern of the fiber angle for each layer. The selection of a design may be analyzed using finite element analysis to determine whether the design will comprise the desired characteristic.

Claims15

Dependent claims

A device comprising:

a. an internal fixator for spanning a fracture, the internal fixator having a plurality of layers, each layer of the plurality of layers including a thermoplastic component and a fiber component and each layer of the plurality of layers having a selected fiber angle pattern,
b. the selected fiber angle patterns being arranged symmetrically from a first layer to a last layer, and
c. the symmetrical arrangement of fiber angle patterns including at least two layers having generally opposing fiber angle patterns.

Dependencies are inferred from the claim text.

Facts

Application

13/124,555Filed 15 Oct 2009

Priority

15 Oct 2008

Published

8 Mar 2012

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

A61B 17/72
Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin: intramedullary devices, e.g.…
A61B 17/80
Internal fixation devices , including fasteners and spinal fixators, even if a part thereof projects from the skin: cortical plates , i.e. bone…
A61B 90/39
Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00,…
A61B 17/7216
Intramedullary devices, e.g. pins or nails: for bone lengthening or compression

Composite internal fixators

Life of this patent

Composite internal fixators

Life of this patent

Abstract

Claims15