Circumferential walker

• US 8,002,724 B2
• Filed: 05/15/2009
• Issued: 08/23/2011
• Est. Priority Date: 05/15/2008
• Status: Active Grant

• Current Assignee: Ossur hf
• Original Assignee: Ossur hf
• Inventors: Hu, Irving, Lee, Jane
• Primary Examiner(s): Bianco; Patricia M
• Assistant Examiner(s): HAWTHORNE, OPHELIA ALTHEA
• Application Number:
  US12/466,577
• Publication Number:
  US 20090287127A1
• Time in Patent Office: 830 Days
• Field of Search: 128/882, 602/5, 602/13, 602/23, 602/16, 602/25, 602/26, 602/27, 361/16, 361/171, 361/40, 361/54, 361/55
• US Class Current: 602/27
• CPC Class Codes: A61F 5/01 Orthopaedic devices, e.g. splints, casts or braces
• CPC Class Codes: A61F 5/0111 for the feet or ankles
• CPC Class Codes: A61F 5/012 inflatable
• CPC Class Codes: A61F 5/0127 for the feet A61F5/0111 takes precedence
• CPC Class Codes: A61F 5/0195 Shoe-like orthopaedic devices for protecting the feet against injuries after operations

Abstract

An orthopedic device in the form of a circumferential walker includes a first member (posterior shell) and a second member (dorsal shell) corresponding to the first member. An outsole or plantar shell portion is attached to, or formed on or with the posterior shell. An expansion joint is positioned in the posterior shell or dorsal shell to expand to accommodate larger sized lower legs. The dorsal and posterior shells may include flexible or resilient edge portions to reduce pressure points and to further accommodate users having larger sized lower legs. The dorsal shell also includes a flexible or resilient connecting portion to accommodate users having larger ankles and feet and to reduce or eliminate the formation of a pressure point along the dorsal shell. Quick-connecting buckle assemblies can be provided to allow a user to quickly don and doff the orthopedic device.

Claims

1. An orthopedic device comprising:

a first member contoured to generally correspond to an anatomical limb;

a second member contoured to generally correspond to an anatomical limb and corresponding to the first member; and

at least one expansion mechanism positioned on the first member and configured to accommodate changes in anatomical limb size due to an increase or decrease in swelling and/or to accommodate different sized anatomical limbs of various users;

wherein the at least one expansion mechanism is formed as an opening in the first member that extends to a proximal edge of the first member and a flexible overmolded portion formed within the opening to automatically stretch or compress to accommodate different sized wearers.

2. The orthopedic device according to claim 1, further comprising:

a pump assembly configured for integration with at least one of the first and second member; and

at least one bladder arranged along an inner surface of at least one of the first and second member.

3. The orthopedic device according to claim 2, wherein the at least one bladder is in the form of a medial and a lateral bladder connected together for simultaneous inflation or deflation.

4. The orthopedic device according to claim 2, wherein the at least one bladder includes a channel formed therein for providing heat and/or perspiration dissipation.

5. The orthopedic device according to claim 2, wherein the at least one bladder includes an opening formed therein for providing a vent for heat and/or perspiration dissipation.

6. The orthopedic device according to claim 2, wherein the at least one bladder includes an inflation tube, the bladder and inflation tube carried within a liner;

the liner includes a slot formed therein, the inflation tube passing through the slot and relatively moveable within the slot with respect to the liner; and

the pump assembly is connected to the inflation tube relatively moveable with respect to the liner for positioning within a receiving opening formed in the second member.

7. The orthopedic device according to claim 1, further comprising:

a second expansion mechanism formed along an edge of the second member.

8. The orthopedic device according to claim 7, wherein the second expansion mechanism is a flexible edge overmold.

9. The orthopedic device according to claim 7, wherein the second expansion mechanism is a living hinge.

10. The orthopedic device according to claim 1, wherein the at least one expansion mechanism is formed between first and second wing portions of the first member to allow the first and second wing portions to move relative to each other.

11. The orthopedic device according to claim 10, wherein the at least one expansion mechanism comprises:

a frangible or cuttable bridge portion spanning the opening; and

the flexible overmolded portion also formed along the bridge portion.

12. The orthopedic device according to claim 1, wherein the at least one expansion mechanism is formed between a wing portion and a posterior portion of the first member to allow the wing and posterior portions to move relative to each other.

13. The orthopedic device according to claim 4, wherein the at least one expansion mechanism comprises:

a frangible or cuttable bridge portion spanning the opening; and

the flexible overmolded portion also formed along the bridge portion.

14. The orthopedic device according to claim 1, further comprising:

a second expansion mechanism formed along an edge of the first member.

15. The orthopedic device according to claim 14, wherein the second expansion mechanism is a flexible edge overmold.

16. The orthopedic device according to claim 1, further comprising:

a second expansion mechanism formed between first and second portions of the second member.

17. The orthopedic device according to claim 1, further comprising:

an outsole along the first member; and

at least one tightening strap connected to the first member and extending over the second member to secure the first and second members together about an anatomical limb.

18. The orthopedic device according to claim 1, wherein the first and second members include a plurality of clearance openings formed therein and the first and second members include at least one reinforcing structure.

19. An orthopedic device comprising:

a first member contoured to generally correspond to an anatomical limb;

a second member contoured to generally correspond to an anatomical limb and corresponding to the first member;

at least one opening formed in the first member extends to a proximal edge of the first member;

a frangible or cuttable bridge portion spanning the opening; and

a flexible overmolded portion formed within the opening and along the bridge portion and configured to accommodate changes in anatomical limb size due to an increase or decrease in swelling and/or to accommodate different sized anatomical limbs of various users.

20. An orthopedic device comprising:

a first member contoured to generally correspond to an anatomical limb;

a second member contoured to generally correspond to an anatomical limb and corresponding to the first member;

at least one expansion mechanism positioned on the first or second member and configured to accommodate changes in anatomical limb size due to an increase or decrease in swelling and/or to accommodate different sized anatomical limbs of various users; and

a liner having at least one inflatable bladder, the liner received between the first and second members and carrying a pump assembly configured to be received in a receiving opening formed in the second member;

wherein the at least one expansion mechanism is formed as an opening in the first member that extends to a proximal edge of the first member and a flexible overmolded portion formed within the opening to automatically stretch or compress to accommodate different sized wearers.