Custom ankle brace system

• US 6,155,997 A
• Filed: 12/16/1997
• Issued: 12/05/2000
• Est. Priority Date: 12/16/1997
• Status: Expired due to Term

• Current Assignee: Arizona Afo, Inc. (Orthotic Holdings, Inc.)
• Original Assignee: Ernesto Castro
• Inventors: Castro, Ernesto G.
• Primary Examiner(s): Yu, Mickey
• Assistant Examiner(s): POTHIER, DENISE M
• Application Number:
  US08/991,744
• Time in Patent Office: 1,085 Days
• Field of Search: 602/6-8, 602/23, 602/27-29, 264/222, 264/223
• US Class Current: 602/27
• CPC Class Codes: A61F 5/0111 for the feet or ankles

Abstract

A custom ankle brace which is made to compensate for debilitating conditions of an individual patient'"'"'s ankle area. The brace is custom made by creating a negative cast of the patient'"'"'s foot/ankle/lower-leg; and then prescribed markings are included on the negative cast by the castmaker to indicate the desired geometry of support. The markings are transferable to a positive cast to inform the bracemaker. The custom brace has inner and outer material layers with a stiffening element within, all fitted to the shape of a built-up positive cast, the stiffening element having a unitary horizontal partial sole portion and vertical back-and-sides-of-leg portion. The stiffening element, made from a thin polymeric sheet, is vacuum and heat fitted to the built-up positive cast.

Claims

1. An ankle brace system comprising an ankle brace, for providing orthotic assistance to an ankle area of a patient wherein the ankle area includes at least one abnormal protrusion enhancing disability for normal walking, said ankle brace comprising:

a. multiple adhesively-connected material layers forming overall a toeless boot and shaped to provide support for the abnormal protrusion by matching the contours of the abnormal protrusion; and

b. at least one said material layer comprising a stiffener element comprising;

i. a partial sole and arch portion lying essentially in a horizontal plane, said partial sole and arch portion being structured and arranged to fully conform to and cover the contours of the patient'"'"'s sole and arch substantially between the patient'"'"'s heel and the ball of the patient'"'"'s foot; and

ii. an essentially vertical sides-and-back-of-leg portion fixed at about a right angle from said plane of said partial sole and arch portion;

iii. wherein said stiffener element is structured and arranged to fully conform to and cover the contours of the abnormal protrusions on the ankle area;

c. said ankle brace being constructed and arranged to be used with a separate essentially normal shoe;

d. wherein said ankle brace further comprises closure elements for tightening and closing said ankle brace on the patient;

e. wherein said multiple material layers are structured and arranged to provide substantially full circumferential support about the ankle area when said closure elements are tightened, and;

f. wherein at least one of said material layers comprises leather.

2. An ankle brace system according to claim 1 wherein at least one of said material layers comprises a foam cushioning material.

3. An ankle brace system according to claim 2 wherein said foam cushioning material comprises about a 1/8-inch thick, single density, medical grade polyurethane foam.

4. An ankle brace system according to claim 1 wherein said stiffener element comprises a polymeric material shapable when heated.

5. An ankle brace system according to claim 4 wherein said polymeric material comprises about a 2-millimeter-thick orthopedic grade polymer blend.

6. An ankle brace system according to claim 1 wherein the innermost layer of said multiple adhesively-connected material layers comprises a leather material.

7. An ankle brace system according to claim 6 wherein said innermost layer comprises 21/2 ounce orthopedic tanned leather material.

8. An ankle brace system according to claim 1 wherein the outermost layer of said multiple adhesively-connected material layers comprises a leather.

9. An ankle brace system according to claim 8 wherein said outermost layer comprises a 21/2 ounce chromium tanned cowhide leather.

10. An ankle brace system according to claim 1 wherein said stiffener element does not have a heel portion.

11. An ankle brace system according to claim 1 wherein:

a. at least one of said material layers comprises a foam cushioning material, said foam cushioning material comprising about a 1/8-inch thick, single density, medical grade polyurethane foam;

b. said stiffener element comprises a polymeric material shapable when heated, said polymeric material comprising about a 2-millimeter-thick orthopedic grade polymer blend;

c. the innermost layer of said multiple adhesively-connected material layers comprises a leather material, said innermost layer comprising a 21/2 ounce orthopedic tanned leather material;

d. the outermost layer of said multiple adhesively-connected material layers comprises a leather material, said leather material comprising a 21/2 ounce chromium tanned cowhide leather;

e. said ankle brace further comprises closure elements for tightening and closing said ankle brace on said patient; and

f. said stiffener element does not have a heel portion.

12. An ankle brace system comprising an ankle brace, for providing orthotic assistance to an ankle area of a patient wherein the ankle area includes at least one abnormal protrusion enhancing disability for normal walking, said ankle brace comprising:

a. multiple adhesively-connected material layers forming overall a toeless boot and shaped to provide support for the abnormal protrusion by matching the contours of the abnormal protrusion; and

b. at least one said material layer comprising a stiffener element comprising;

i. a partial sole portion lying essentially in a horizontal plane, said partial sole portion being structured and arranged to fully conform to and cover the contours of the patient'"'"'s sole substantially between the patient'"'"'s heel and the ball of the patient'"'"'s foot; and

ii. an essentially vertical sides-and-back-of-leg portion fixed at about a right angle from said plane of said partial sole portion;

iii. wherein said stiffener element is structured and arranged to fully conform to and cover the contours of the abnormal protrusions on the ankle area;

c. said ankle brace being constructed and arranged to be used with a separate essentially normal shoe;

d. wherein said ankle brace further comprises closure elements for tightening and closing said ankle brace on the patient;

e. wherein said multiple material layers are structured and arranged to provide substantially full circumferential support about the ankle area when said closure elements are tightened, and;

f. wherein at least one of said material layers comprises leather.

13. An ankle brace system comprising an ankle brace, for providing orthotic assistance to an ankle area of a patient wherein the ankle area includes at least one abnormal protrusion enhancing disability for normal walking, said ankle brace comprising:

a. multiple adhesively-connected material layers forming overall a toeless boot and shaped to provide support for the abnormal protrusion by matching the contours of the abnormal protrusion; and

b. at least one said material layer comprising a stiffener element comprising;

i. a partial sole and arch portion lying essentially in a horizontal plane, said partial sole and arch portion being structured and arranged to fully conform to and cover the contours of the patient'"'"'s sole and arch substantially between the patient'"'"'s heel and the ball of the patient'"'"'s foot; and

ii. an essentially vertical sides-and-back-of-leg portion fixed at about a right angle from said plane of said partial sole and arch portion;

iii. wherein said stiffener element is structured and arranged to fully conform to and cover the contours of the abnormal protrusions on the ankle area;

c. said ankle brace being constructed and arranged to be used with a separate essentially normal shoe;

d. wherein said ankle brace further comprises closure elements for tightening and closing said ankle brace on the patient;

e. wherein said multiple material layers are structured and arranged to provide substantially full circumferential support about the ankle area when said closure elements are tightened.