Versatile orthopaedic leg mounted walker

• US 7,896,826 B2
• Filed: 09/18/2009
• Issued: 03/01/2011
• Est. Priority Date: 07/23/2002
• Status: Active Grant

• Current Assignee: Ossur hf
• Original Assignee: Ossur hf
• Inventors: Leeder, Chad, Hu, Irving, Grim, Tracy
• Primary Examiner(s): Brown; Michael A.
• Application Number:
  US12/562,468
• Publication Number:
  US 20100010410A1
• Time in Patent Office: 529 Days
• Field of Search: 602/23, 602/26, 602/27, 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 high strength engineered plastic base having at least one side wall, the base forming a flange segment extending outwardly from the thickness of the side wall, the flange segment forming a hole therethrough extending between the inner and outer sides;

an integrally molded polymeric pivotal D-ring having an opening arranged for receiving a strap, the D-ring including a first flap, a pin extending from the first flap, and a head depending from an end portion of the pin, the head of the pin being sized greater than a reduced diameter section of the pin;

wherein the pin extends through the flange segment hole such that the head and the flap are adjacent to opposed sides of the flange segment, the D-ring being pivotally connected to the base, the D-ring ring forming a snap connection with the base.

2. The orthopedic device according to claim 1, wherein the D-ring includes a second flap, the second flap having a hole arranged to engage the reduced diameter section of the pin.

3. The orthopedic device according to claim 1, wherein the base defines a variable thickness, the flange segment having a reduced thickness over portions of the base adjacent thereto.

4. The orthopedic device according to claim 1, further comprising a strap connected at one end to the D-ring and extending through the opening.

5. An orthopedic device, comprising:

a high strength engineered plastic base, the base having a central raised area for receiving the foot of a patient and a spaced lower substantially continuous surface for receiving an outer sole, the base further comprising two strut supports extending upwardly from opposite sides of the base;

a pair of struts extending upwardly from and mounted on opposite sides of the strut supports, each of the struts having a section with a variable thickness, the variable thickness section defined along a longitudinal axis of the strut, and located along a middle section of the strut such that edge portions bordering the middle section have a thickness less than the middle section.

6. The orthopedic device according to claim 5, wherein a top end of each of the struts defines a pair of opposed slots generally oriented along the length of the struts.

7. The orthopedic device according to claim 5, wherein the middle section is localized such that regions above and the below the middle section have a thickness different from the middle section.

8. An orthopedic device, comprising:

a high strength engineered plastic base, the base forming a cavity for receiving the foot of a patient and a spaced lower substantially continuous surface for receiving an outer sole, the base further comprising two strut supports extending upwardly from opposite sides of the base and having inner substantially vertically extending slots, the base having inner and outer wall portions;

first and second struts and a snap-in locking mechanism for securing each of the struts into one of the slots in the side supports;

wherein the snap-in locking mechanism is defined by at least one resiliently biased prong extending from an end portion of each of the struts and engaging surfaces located along the inner wall portion of the base

wherein each of the struts define wing portions located at a top end portion of each of the struts, each wing portion defining at least one elongate slot generally oriented along the length of the strut.

9. The orthopedic device according to claim 8, wherein the prong only secures to an engaging surface located along the inner wall portion of the base.

10. The orthopedic device according to claim 8, wherein the struts are selectively removable from the base portion by deflecting the prong from the engaging surfaces.

11. The orthopedic device according to claim 8, wherein the struts each define areas of variable thickness located along the longitudinal axis of each of the struts, and generally located at a middle section of each of the struts.

12. The orthopedic device according to claim 8, wherein the prong is located at a middle section of a bottom end portion of the strut, the prong arranged to resiliently deflect outwardly and inwardly in a direction generally perpendicular to the longitudinal axis of the strut.

13. The orthopedic device according to claim 12, wherein the prong defines a central portion of reduced thickness thereby permitting bending in the direction perpendicular to the longitudinal axis of the strut.