US 2022/0186804 A1 · COMPOSITE SPRINGS, COMPOSITE SPRING ASSEMBLIES, AND METHODS FOR MAKING THE SAME

Abstract

Composite springs, composite spring assemblies, medical devices including the same, and methods of making and using the same are disclosed. The composite springs may comprise alternating layers of carbon fiber and fiberglass materials. A strengthening adhesive, such as an epoxy, may be used to bind the carbon fiber and fiberglass materials. A dampening member may be attached to the composite spring, thereby at least partially defining a composite spring assembly. The dampening member may dampen elastic/spring forces of the composite spring. The composite spring assembly may be attached to an orthotic device to provide a non-linear spring response during movement of the device.

Claims20

Dependent claims

A composite spring assembly comprising:

a first layer, wherein the first layer comprises a carbon fiber material;
a second layer, wherein the second layer comprises a fiberglass material;
a first adhesive binding the first layer and the second layer;
a third layer, wherein the third layer comprises a dampening plastic;
and
a second adhesive joining the third layer to one of the first layer or the second layer.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/678,914Filed 23 Feb 2022

Priority

29 Aug 2019

Published

16 Jun 2022

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

A61F 2/66
Artificial legs or feet or parts thereof: feet; Ankle joints
F16F 1/20
Leaf springs: with layers, e.g. anti-friction layers, or with rollers between the leaves
A61F 2/76
Prostheses not implantable in the body: means for assembling, fitting or testing prostheses, e.g. for measuring or balancing
A61F 5/0123
Specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations: for the knees

Composite springs, composite spring assemblies, and methods for making the same

Life of this patent

Composite springs, composite spring assemblies, and methods for making the same

Life of this patent

Abstract

Claims20