Versatile orthopaedic leg mounted walker

• US 7,597,674 B2
• Filed: 08/13/2007
• Issued: 10/06/2009
• Est. Priority Date: 07/23/2002
• Status: Active Grant

• Current Assignee: Ossur hf
• Original Assignee: Ossur hf
• Inventors: Leeder, Chad, Grim, Tracy, Hu, Irving
• Primary Examiner(s): Brown; Michael A.
• Application Number:
  US11/889,379
• Publication Number:
  US 20070293798A1
• Time in Patent Office: 785 Days
• Field of Search: 602/16, 602 20- 23, 602 26- 27, 128/882
• US Class Current: 602/23
• 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 base and including;

a frame member formed from a higher 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 higher strength material of the frame member;

wherein the supporting component defines area of reduced thickness for permitting low resistance flexing of the supporting component, the reduced thickness areas forming living hinges extend substantially vertically to permit flexing of the side wings relatives to the strut.

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 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.

4. 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.

5. 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.

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

7. The orthopedic device according to claim 5, wherein the main body is formed from a substantially rigid plastic.

8. 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.

9. 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.

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

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

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

a 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 base including;

a frame member formed from a higher 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 higher 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;

wherein the supporting component defines discrete areas having different hardness properties.

13. The orthopedic device according to claim 12, 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.

14. The orthopedic device according to claim 12, 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.

15. The orthopedic device according to claim 12, 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.

16. A bracing component, comprising:

an elongate metal frame member formed from a malleable material and defining at least one opening; and

a plastic supporting component molded over and integrally secured to the frame member so as to be contiguous and continuous therewith, at least one plastic material extension belonging to the supporting component interlocking with the opening of the frame member, the supporting component having a side wing portion laterally extending at least outwardly from a length of the frame member and which defines at least one through-slot arranged generally parallel to the length of the frame member; and

at least one strap arranged to secure to and pass through the through-slot and extend from the supporting component.

17. The bracing component according to claim 16, 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.

18. The bracing component according to claim 17, wherein the second area is molded over portions of the first area so as to be integrally secured and contiguous therewith.

19. The bracing component according to claim 16, 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.

20. The bracing component according to claim 16, wherein the frame member is formed from aluminum.

21. The bracing component according to claim 16, further comprising a padding material, wherein the supporting component defines at least one recess adapted to receive the padding material.

22. The bracing component according to claim 16, wherein the supporting component covers peripheral edge of the frame member.

23. A bracing component, comprising:

a rigid frame member defining at least one opening, the frame member having longitudinal edges defines along a longitudinal length thereof; and

a rigid or semi-rigid plastic supporting component molded over and integrally secured to the frame member, at least one plastic material extension belonging to the supporting component interlocking with the opening plastic material extension belonging to the therewith, the supporting component surrounding and protruding at least laterally from the longitudinal edge defined along a segment of the longitudinal length of the frame member;

wherein the supporting component is constructed from a material less rigid that a material forming the frame member.