Rapid setting composite article

Patent metadata

Field	Value
Publication number	US-10285844-B2
Application number	US-201415027984-A
Country	US
Kind code	B2
Filing date	Oct 6, 2014
Priority date	Oct 7, 2013
Publication date	May 14, 2019
Grant date	May 14, 2019

Abstract

A fiber-reinforced composite article useful in supporting or immobilizing an injured body part is disclosed. The composite is a multi-layer, flexible precursor including fiber reinforcement plies, which can be rapidly cured into a rigid body using a thermosetting resin. Methods of making and using the same are also disclosed, along with kits containing such composite articles.

First claim

What is claimed:

1. A fiber-reinforced composite article, the article comprising:
a multi-layer body convertible from a flexible state to a rigid state, the multi-layer body being configured to conform to an injured body part when in the flexible state and to immobilize the injured body part when in the rigid state, the multi-layer body comprising:
an insulating barrier;
an encapsulated fiber compartment;
a spacer; and
a light source configured to emit light energy;

wherein the encapsulated fiber compartment comprises a fiber reinforcement layer, photo-curable thermosetting resin, and an encapsulating film, the fiber reinforcement layer being impregnated with the photo-curable thermosetting resin and encapsulated by the encapsulating film, the photo-curable thermosetting resin being uncured when the multi-layer body is in the flexible state and being cured when the multi-layer body is in the rigid state, the photo-curable thermosetting resin being configured to begin a curing process when light energy emitted by the light source is incident on the encapsulated fiber compartment;
wherein the spacer is configured to diffuse light energy emitted by the light source, the spacer being positioned between the light source and the encapsulated fiber compartment such that light energy emitted by the light source passes through the spacer before being incident on the encapsulated fiber compartment;
wherein the insulating barrier forms a sleeve enclosing the encapsulated fiber compartment, the spacer, and the light source, the insulating barrier being configured to reduce the amount of heat transferred from the multi-layer body to the injured body part when the multi-layer body converts from the flexible state to the rigid state.

2. The fiber-reinforced composite article of claim 1 , wherein the multi-layer body further comprises a reflector, the light source being positioned between the spacer and the reflector, the reflector being configured to reflect light energy emitted by the light source towards the encapsulated fiber compartment.

3. The fiber-reinforced composite article of claim 2 , wherein the reflector is a first reflector and the multi-layer body further comprises a second reflector, the encapsulated fiber compartment being positioned between the second reflector and the spacer, the second reflector being configured to reflect light energy emitted by the light source towards the encapsulated fiber compartment.

4. The fiber-reinforced composite article of claim 1 , wherein the article further comprises a power source, the power source being electrically connected to the light source.

5. The fiber-reinforced composite article of claim 4 , wherein the power source is a battery.

6. The fiber-reinforced composite article of claim 1 , wherein the light source is configured to emit light energy having a wavelength between about 350 nanometers to about 500 nanometers.

7. The fiber-reinforced composite article of claim 6 , wherein the light source is configured to emit light energy having a wavelength between about 450 nanometers to about 495 nanometers.

8. The fiber-reinforced composite article of claim 1 , wherein the fiber reinforcement layer comprises a plurality of fiber reinforcement plies.

9. The fiber-reinforced composite article of claim 8 , wherein the plurality of fiber reinforcement layer is from two fiber reinforcement plies to four fiber reinforcement plies.

10. The fiber-reinforced composite article of claim 1 , wherein the photo-curable thermosetting resin is configured such that the curing process occurs in less than about 10 minutes after being exposed to light energy emitted by the light source.

11. The fiber-reinforced composite article of claim 1 , wherein the fiber reinforcement layer is selected from the group consisting of fiberglass, carbon fiber, polyaramid, and natural fibers.

12. The fiber-reinforced composite article of claim 1 , wherein the article further comprises a plurality of straps, the straps being connected to the insulating barrier, the straps being configured to affix the fiber-reinforced composite article to the injured body part.

Assignees

• Univ Wichita State
• Commercial Chemistries Llc

Inventors

• Tomblin John S
• Aldag Thomas
• Mccarvill William T
• Reuter Kimberly M
• White Joel D
• Meyer Andrea C

Classifications

• A61L15/125

  Mixtures of macromolecular compounds · CPC title

• A61L15/12

  containing macromolecular materials · CPC title

• A61L15/14

  Use of materials characterised by their function or physical properties · CPC title

• A61F5/0585

  for the legs (toe correcting devices A61F5/019) · CPC title

• A61F5/01

  Orthopaedic devices, e.g. long-term immobilising or pressure directing devices for treating broken or deformed bones such as splints, casts or braces · CPC title