A multi-layered composite material suitable for use in orthopedics includes a foam core layer bonded between two layers of thermoformable polymer material. The thermoformable material is heat formable within a target temperature range allowing for rapid heating and application to a patient such as i
A multi-layered composite material suitable for use in orthopedics includes a foam core layer bonded between two layers of thermoformable polymer material. The thermoformable material is heat formable within a target temperature range allowing for rapid heating and application to a patient such as in the form of a splint. While within the target temperature range, the composite material includes a dwell time sufficiently long to enable proper fitment and adjustment, yet not overly long requiring extended periods of holding the composite material in place. The composite material is very light yet extremely rigid and easily conformable to patients.
대표청구항▼
1. A composite material, comprising: a first layer of thermoformable material;a second layer of thermoformable material; anda foam layer disposed between, and bonded to, the first and second layers of thermoformable material,wherein the first and second layers of thermoformable material are heat for
1. A composite material, comprising: a first layer of thermoformable material;a second layer of thermoformable material; anda foam layer disposed between, and bonded to, the first and second layers of thermoformable material,wherein the first and second layers of thermoformable material are heat formable within a target temperature range and substantially rigid at temperatures below a minimum formable temperature of about 130 degrees Fahrenheit, andwherein the first and second layers of thermoformable material have a density which is about three to five times greater than a density of the foam layer. 2. The composite material of claim 1, wherein the density of the first and second layers of thermoformable material is about 1200 kg/m^3 and the density of the foam layer is about 300 kg/m^3. 3. A composite material, comprising: a first layer of thermoformable material;a second layer of thermoformable material; anda foam layer disposed between, and bonded to, the first and second layers of thermoformable material,wherein the first and second layers of thermoformable material are heat formable within a target temperature range and substantially rigid at temperatures below a minimum formable temperature of about 130 degrees Fahrenheit, andwherein the first and second layers of thermoformable material each have a thickness which is about one-half of a thickness of the foam layer. 4. A composite material, comprising: a first layer of thermoformable material;a second layer of thermoformable material; anda foam layer disposed between, and bonded to, the first and second layers of thermoformable material,wherein the first and second layers of thermoformable material are heat formable within a target temperature range and substantially rigid at temperatures below a minimum formable temperature of about 130 degrees Fahrenheit, andwherein the first and second layers of thermoformable material each have a thickness of about 0.03 to 0.045 inches, and wherein the foam layer has a thickness of about 0.06 to 0.09 inches. 5. A composite material, comprising: a first layer of thermoformable material;a second layer of thermoformable material;a foam layer disposed between, and bonded to, the first and second layers of thermoformable material, wherein the first and second layers of thermoformable material are heat formable within a target temperature range and substantially rigid at temperatures below a minimum formable temperature of about 130 degrees Fahrenheit;an inner layer coupled to the first layer of thermoformable material; andan outer layer coupled to the second layer of thermoformable material. 6. The composite material of claim 5, wherein the inner layer comprises materials suitable for comfortable contact with skin. 7. The composite material of claim 5, wherein the inner layer comprises a fabric that wicks moisture into the inner layer. 8. The composite material of claim 5, wherein the outer layer comprises durable materials. 9. The composite material of claim 5, wherein the outer layer comprises unbroken loop fabric suitable for hook-and-loop fastening arrangements. 10. A composite material, comprising: a first layer of thermoformable material;a second layer of thermoformable material; anda foam layer disposed between, and bonded to, the first and second layers of thermoformable material,wherein the first and second layers of thermoformable material are heat formable within a target temperature range and substantially rigid at temperatures below a minimum formable temperature of about 130 degrees Fahrenheit, andwherein the first and second layers of thermoformable material have a hardness within a range of Shore 65D-80D in accordance with ASTM D2240, a tensile strength in the range of 6000-9000 psi in accordance with ASTM D638, an elongation at break of 5% in accordance with ASTM D638, and a flexural modulus of between 270,000-340,000 psi in accordance with ASTM D5023. 11. A method, comprising: causing a composite material to be manufactured and available to a user, the composite material including: a first layer of thermoformable material,a second layer of thermoformable material, anda foam layer disposed between, and bonded to, the first and second layers of thermoformable material, wherein the first and second layers of thermoformable material are heat formable within a target temperature range and substantially rigid at temperatures below a minimum formable temperature of about 130 degrees Fahrenheit; andproviding instructions to the user for creating a splint with the composite material, the instructions including: heating the composite material such that the layers of thermoformable material are above the minimum formable temperature,forming the composite material about a body part while the layers of thermoformable material are above the minimum formable temperature, andholding the composite material in place until expiration of the dwell time such that the layers of thermoformable material are below the minimum formable temperature. 12. The method of claim 11, wherein the dwell time is between five and ten minutes. 13. The method of claim 11, wherein heating the composite material such that the layers of thermoformable material are above the minimum formable temperature further comprises: heating the composite material such that the layers of thermoformable material are within the target temperature range, the target temperature range being between 160-240 degrees Fahrenheit. 14. The method of claim 11, wherein heating the composite material such that the layers of thermoformable material are above the minimum formable temperature further comprises: heating the composite material such that the layers of thermoformable material are within the target temperature range, the target temperature range being between 190-225 degrees Fahrenheit. 15. The method of claim 11, wherein the first and second layers of thermoformable material have a density which is about three to five times greater than a density of the foam layer. 16. The method of claim 11, wherein the instructions further include joining or bonding the layers at their edges. 17. A method of applying a splint to a patient, comprising: providing a composite material including:a first layer of thermoformable material;a second layer of thermoformable material; anda foam layer disposed between, and bonded to, the first and second layers of thermoformable material, wherein the first and second layers of thermoformable material are heat formable within a target temperature range and substantially rigid at temperatures below a minimum formable temperature of about 130 degrees Fahrenheit; andheating the composite material such that the layers of thermoformable material are above the minimum formable temperature;forming the composite material about a body part while the layers of thermoformable material are above the minimum formable temperature; andholding the composite material in place until expiration of the dwell time such that the layers of thermoformable material are below the minimum formable temperature.
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