Self-equalizing resilient orthopaedic support

• US 7,288,076 B2
• Filed: 02/21/2003
• Issued: 10/30/2007
• Est. Priority Date: 08/29/1996
• Status: Expired due to Fees

• Current Assignee: Ossur hf
• Original Assignee: Ossur hf
• Inventors: Iglesias, Joseph M., Arnold, William K., Grim, Tracy
• Primary Examiner(s): Brown; Michael A.
• Application Number:
  US10/371,018
• Publication Number:
  US 20030171703A1
• Time in Patent Office: 1,712 Days
• Field of Search: 602 4- 5, 602/16, 602 20- 23, 602 26- 27, 602/13, 128/882
• US Class Current: 602/5
• CPC Class Codes: A61F 5/0111 for the feet or ankles

Abstract

An ankle brace has first and second semi-rigid shell members for extending over the ankle and the lower leg on the inner and outer sides of the ankle. A sealed bladder pad is mounted to each of the shell members on the side of the shell member facing the ankle. Each bladder pad includes three small-interconnected bladders wherein a first larger bladder is mounted at the lower end of the shell, and two side-by-side upper bladders are mounted on an upper portion of the associated shell member. The three bladders having restricted openings permitting limited flow of air between the bladders. When a patient wearing the ankle brace walks, the lower bladder is compressed, and air is directed through the restricted openings to the upper bladders, thereby intermittently varying the pressure on the ankle and lower leg, and promoting circulation.

Claims

1. An ankle brace comprising:

at least one semi-rigid shell member for extending aver the ankle and the lower leg on side of the ankle, a sealed bladder pad mounted to said shell member on the side of said shell member facing the ankle;

said bladder pad including three small interconnccted bladders on the pad, wherein a first larger bladder is mounted at the lower end of said shell, and two side-by-side upper bladders are mounted on an upper portion of the associated shell member, and said three bladders having openings permitting limited flow of air between said bladders;

whereby when a patient wearing said ankle braze walks, the lower bladder is compressed, and air is directed through said openings to said upper bladders, thereby intermittently varying the pressure on the ankle and lower leg, and promoting circulation.

2. An ankle brace comprising:

at least one semi-rigid shell member for extending over the ankle and the lower leg on a side of the ankle, a sealed bladder pad mounted to each of said shell members on the side of said shell member facing the ankle;

said bladder pad including three small interconnected bladders wherein a first larger bladder is mounted at the lower end of said shell, and two side-by-side upper bladders are mounted on an upper portion of the associated shell member, said three bladders having openings permitting limited flow of air between said bladders; and

resilient cushioning material mounted to each said shell on the side of said shell facing the ankle;

whereby when a patient wearing said snide brace walks, the lower bladder is compressed, and air is directed through said restricted openings to said upper bladders, thereby intermittently varying the pressure on the ankle and lower leg, and promoting circulation.

3. An ankle brace as defined in claim 2 wherein said cushioning material is a thin layer of resilient material substantially coextensive with each said bladder.

4. An ankle brace as defined in claim 2 wherein said cushioning material is a resilient plastic sheet with geometric shapes thereon extending outward from said plastic sheet toward said shell.

5. An ankle brace as defined in claim 3 wherein bonded to said bladder pad is a loop type laminate padding material, and wherein hook type material is bonded to said shells for hook and loop type mounting of said bladder pad to said shells.

6. An ankle brace comprising:

at least one semi-rigid shell member for extending over the ankle and the lower leg on one side of the ankle, a sealed bladder pad mounted to said shell member on the side of said shell member facing the ankle;

said bladder pad including a plurality of interconnected bladders wherein said interconnecting bladders are entirely sealed with the periphery of said bladder pad;

at least two of said bladders having openings permitting limited flow of air between said at least two bladders; and

a resilient pad having a matrix of cells having walls forming resilient geometric shapes thereon extending toward said shell.

7. An ankle brace of claim 6, wherein the resilient geometric shapes are in the lower half of said resilient pad.

8. An ankle braze of claim 6, wherein said geometric shapes are ellipses.

9. An ankle brace of claim 6, wherein an overmold substantially surrounds said pad and said shell substantially sealing together said orthopedic support.

10. An ankle brace as defined in claim 6, further comprising an overmold molded onto said shell, said pad being bonded to said overmold.

11. An ankle brace as defined in claim 6, further comprising means for securing said ankle support around the lower leg.

12. An ankle brace as defined in claim 6, wherein said pad further comprises a plurality of integrally molded fingers extending from said pad to said outer shell.

13. An ankle brace as defined in claim 12, wherein said fingers are integrally molded with said pad.

14. An ankle brace as defined in claim 12, wherein some of said fingers have a different length than others of said fingers.

15. An ankle brace as defined in claim 6, wherein said pad is formed of a thermoplastic elastomer (TPE).

16. An ankle brace as defined in claim 6, wherein said brace further comprises a layer of cushioning in between said bladder pad and said semi-rigid shell member.

17. An ankle brace as defined in claim 6, wherein said brace further comprises a layer of cushioning in between said bladder pad and said resilient pad.