Versatile orthopaedic leg mounted walker

• US 20070293798A1
• Filed: 08/13/2007
• Published: 12/20/2007
• Est. Priority Date: 07/23/2002
• Status: Active Grant

• Current Assignee: Ossur hf
• Original Assignee: Ossur hf
• Inventors: Leeder, Chad, Grim, Tracy, Hu, Irving
• Granted Patent: US 7,597,674 B2
• Time in Patent Office: Days
• US Class Current: 602/27
• CPC Class Codes: A61F 5/0111 for the feet or ankles
• CPC Class Codes: A61F 5/0195 Shoe-like orthopaedic devices for protecting the feet against injuries after operations

Abstract

An orthopedic walker for mounting on the lower leg of a patient includes a walker base having a central area for receiving the foot of a patient and a spaced lower surface including an outer sole, and a pair of struts connected to the walker base. Each of the struts has a frame member of high strength material secured to the first end of the walker base and a supporting component integrally secured and adjacent to the frame member. The supporting component defines laterally extending side wings generally corresponding to the second end of the frame member, and is constructed from a material less rigid than the high strength material of the frame member. The supporting component has a main body and a border portion that are integrally secured and contiguous with one another. The border portion is formed from a material having a lower hardness than the material forming the main body.

Claims

1. An orthopedic device, comprising:

a base having first and second sides;

at least one strut connected to the walker base and including;

a frame member of high strength material and having first and second ends, the first end of the frame member secured to the first side of the base; and

a supporting component integrally secured to and contiguous with the frame member, and defining a laterally extending side wing generally corresponding to the second end of the frame member, the supporting component being constructed from a material less rigid than the high strength material of the frame member.

2. The orthopedic device according to claim 1, wherein the supporting component defines a pair of side wings having slots located on opposite sides of the frame member.

3. The orthopedic device according to claim 1, wherein the supporting component comprises first and second types of slots, the first set of slots located on opposite sides of the frame member and being generally parallel therewith.

4. The orthopedic device according to claim 1, wherein the supporting component defines a border portion generally located along at least a segment of a peripheral edge of the supporting component, and a main body contiguous with the frame member, the border portion having lower hardness properties than the main body.

5. The orthopedic device according to claim 4, wherein the border portion is formed from a substantially resilient plastic.

6. The orthopedic device according to claim 4, wherein the main body is formed from a substantially rigid plastic.

7. The orthopedic device according to claim 1, wherein the supporting component comprises first and second discrete and continuous materials, the first material having different hardness properties than the second material, the first material forming at least a portion of a peripheral edge of the supporting component and the second material forming at least a portion of the supporting component contiguous to the frame member.

8. The orthopedic device according to claim 7, wherein the border portion is formed from a substantially resilient plastic.

9. The orthopedic device according to claim 7, wherein the main body is formed from a substantially rigid plastic.

10. The orthopedic device according to claim 1, further comprising a locking mechanism adapted for being retained by the base, and configured to secure to the frame member.

11. The orthopedic device according to claim 2, wherein the supporting component defines areas of reduced thickness for permitting low resistance flexing of the supporting component, the reduced thickness areas forming living hinges which extend substantially vertically to permit flexing of the side wings relative to the strut.

12. The orthopedic device according to claim 1, wherein the supporting component defines discrete areas having different hardness properties.

13. The orthopedic device according to claim 1, wherein the frame member is formed from a malleable aluminum.

14. An orthopedic walker for mounting on the lower leg of a patient, comprising:

a walker base having a central area for receiving the foot of a patient and a spaced lower surface including an outer sole;

at least one strut connected to the walker base including;

a frame member of high strength material and having first and second ends, the first end of the frame member secured to the first side of the base; and

a supporting component integrally secured to and contiguous to the frame member, and defining laterally extending side wings generally corresponding to the second end of the frame member, the supporting component being constructed from a material less rigid than the high strength material of the frame member;

the base further including a side strut support having an inner substantially vertically extending slot for receiving the strut.

15. The orthopedic device according to claim 14, further comprising a locking mechanism arranged for securing the strut to the base, the locking mechanism defining a button for securing to the first end of the frame member, and shoulders for securing to the base.

16. The orthopedic device according to claim 14, wherein the supporting component defines a border portion generally located along at least a segment of a peripheral edge of the supporting component, and a main body generally adjacent to the frame member, the border portion having lower hardness properties than the main body and being contiguous with the main body.

17. The orthopedic device according to claim 14, wherein the supporting component defines discrete areas having different hardness properties.

18. The orthopedic device according to claim 14, wherein the supporting component defines areas of reduced thickness for permitting low resistance flexing of the supporting component, the reduced thickness areas forming living hinges which extend substantially vertically to permit flexing of the side wings relative to the strut.

19. A bracing component, comprising:

a metal frame member; and

a plastic supporting component molded over and integrally secured to the frame member so as to be contiguous and continuous therewith, the supporting component defining at least one wing extending from the frame member, the wing being resilient relative to the frame member.

20. The bracing component according to claim 19, wherein the supporting component has first and second areas each defining different hardness properties, the first area defined by a substantially rigid plastic and located adjacent the metal member, and the second area defined by a resilient plastic bordering and outer lying the first area.

21. The bracing component according to claim 20, wherein the second area is molded over portions of the first area so as to be integrally secured and contiguous therewith.

22. The bracing component according to claim 19, wherein the supporting component defines areas of reduced thickness for permitting low resistance flexing of the supporting component, the reduced thickness areas forming living hinges which permit flexing portions of the supporting component relative to the frame member.

23. The bracing component according to claim 19, wherein the frame member comprises a malleable aluminum.

24. The bracing component according to claim 19, further comprising a padding material, wherein the supporting component defines at least one recess adapted to receive the padding material.

25. The bracing component according to claim 19, wherein the supporting component defines an elongate slot formed along the side wing and generally parallel with the frame member.