Pneumatic achilles sleeve

• US 6,755,798 B2
• Filed: 02/13/2002
• Issued: 06/29/2004
• Est. Priority Date: 02/13/2002
• Status: Expired due to Term

• Current Assignee: DJO LLC (Enovis Corp.)
• Original Assignee: Aircast, Inc. (Enovis Corp.)
• Inventors: Hargrave, David C., McCarthy, Fabian
• Primary Examiner(s): Brown, Michael A.
• Application Number:
  US10/074,960
• Publication Number:
  US 20030153857A1
• Time in Patent Office: 867 Days
• Field of Search: 128/846, 128/869, 128/882, 128/DIG.20, 602/23, 602/13, 602/26, 602/27, 602/60, 602/61, 602/62, 602/65
• US Class Current: 602/13
• CPC Class Codes: A61F 5/0111 for the feet or ankles
• CPC Class Codes: A61F 5/012 inflatable
• CPC Class Codes: A61H 9/0078 with intermittent or alternately inflated bladders or cuffs mattresses for preventing bed-sores with alternated pressurized chambers A61G7/05776
• CPC Class Codes: A61H 9/0085 Inflated by user's body movement, e.g. ambulatory devices
• CPC Class Codes: Y10S 128/20 Inflatable splint

Abstract

The pneumatic Achilles sleeve assembly comprises a sleeve and at least one strap for fastening the sleeve around the ankle. The sleeve assembly positions an arch cell which contains a dynamic volume of air within the sleeve under a human foot. The arch cell is fabricated from a flexible material and is in communication with a conduit member. Upon application of external pressure to the arch cell, air is expelled from said air cell through said conduit member. The sleeve assembly also positions a tendon cell which contains a dynamic volume of air within the sleeve against the Achilles tendon. The tendon cell is in communication with the arch cell via the conduit member. The tendon cell is also fabricated from a flexible material. Upon the expelling of air from said arch cell, the air enters through the conduit member into the tendon cell which exerts a greater pressure against the Achilles tendon.

Claims

1. A pneumatic sleeve assembly for applying dynamic pressure to the Achilles tendon of a human foot, the sleeve assembly comprising

a sleeve adapted to envelop a portion of the ankle and a portion of the foot, the sleeve comprising an ankle portion extending from the region of the ankle above the Achilles tendon to the foot and a substantially tubular foot portion surrounding the circumference of the foot in the region of the arch,

an arch cell containing a volume of air positioned within said foot portion of said sleeve so as to be located under the arch of the foot, said arch cell being in communication with a conduit member, said arch cell being fabricated from a flexible material, so that upon application of external pressure to said arch cell air is expelled through said conduit member;

an Achilles tendon cell containing a volume of air, said tendon cell being operatively connected to said arch cell via said conduit member, said tendon cell being positioned within said ankle portion of said sleeve so as to be located against the Achilles tendon, said tendon cell being fabricated from a flexible material, so that upon expelling of air from said arch cell through said conduit member into said tendon cell, said tendon cell exerts a dynamic pressure against the Achilles tendon; and

means for opening and releasably closing said ankle portion to facilitate application and removal of said assembly on the human.

2. The sleeve assembly of claim 1 wherein said arch cell contains a foam pad whereby upon removal of said exterior pressure from said arch cell, air is drawn from said tendon cell through said conduit member into said arch cell.

3. The sleeve assembly of claim 1 wherein said tendon cell includes a hermetically sealed chamber for positioning on at least one side of the Achilles tendon.

4. The sleeve assembly of claim 3 wherein said tendon cell further includes a noninflatable medial zone for positioning on the back of the Achilles tendon.

5. The sleeve assembly of claim 1 wherein said tendon cell comprises two walls sealed together along common edges thereof to form a pocket.

6. The sleeve assembly of claim 1 wherein said means for opening and releasably closing said ankle portion comprises a strap.

7. The sleeve assembly of claim 6 wherein said strap is fabricated from a flexible, inelastic material which is releasably engageable by a plurality of hooks.

8. The sleeve assembly of claim 7 wherein said strap comprises a woven filament material.

9. The sleeve assembly of claim 7 wherein said strap has a first end, a medial portion and a second end, and said ankle portion comprises first and second side flaps, said first end of said strap being fixedly attached to said first side flap of said ankle portion, said medial portion of said strap being fixedly attached to said second side flap of said ankle portion, and said second end of said strap being adapted to wrap around the front of the user'"'"'s ankle.

10. The sleeve assembly of claim 9 further comprising means for releasably attaching said second end of said strap to said first side flap of said ankle portion.

11. The sleeve assembly of claim 10 wherein said releasable attaching means comprises mating hook and loop materials on said second end of strap and said first flap of said ankle portion.

12. The sleeve assembly of claim 5 wherein said tendon cell further comprises a third wall such that said second wall is between said first wall and said third wall, and wherein said sleeve assembly comprises a strap, said third wall comprising means for engaging said strap.

13. The sleeve assembly of claim 12 wherein said means for engaging said strap comprises at least one slit for receiving said strap therethrough.

14. The sleeve assembly of claim 1 wherein said conduit member comprises two tubes connectable together by a coupling member, said first tube is in communication with said arch cell and said second tube is in communication with said tendon cell.

15. The sleeve assembly of claim 1 wherein said tendon cell includes first and second lateral self-inflatable compartments separated by a medial non-inflatable portion.

16. The sleeve assembly of claim 1 further comprising a flexible, inelastic support means disposed behind said tendon cell.

17. The sleeve assembly of claim 16 wherein said means for opening and releasably closing said ankle portion comprises a flexible, inelastic strap, and said support for said tendon cell comprises a portion of said strap.

18. A pneumatic sleeve assembly for applying dynamic pressure to the Achilles tendon of a human foot, the sleeve assembly comprising

a sleeve adapted to envelop a portion of the ankle and a portion of the foot, the sleeve comprising an ankle portion extending from the region of the ankle above the Achilles tendon to the foot and a substantially tubular foot portion surrounding the circumference of the foot in the region of the arch,

an arch cell containing a volume of air positioned within said foot portion of said sleeve so as to be located under the arch of the foot, said arch cell being in communication with a conduit member, said arch cell being fabricated from a flexible material, so that upon application of external pressure to said arch cell air is expelled through said conduit member;

an Achilles tendon cell containing a volume of air, said tendon cell being operatively connected to said arch cell via said conduit member, said tendon cell being positioned within said ankle portion of said sleeve so as to be located against the Achilles tendon, said tendon cell being fabricated from a flexible material, so that upon expelling of air from said arch cell through said conduit member into said tendon cell, said tendon cell exerts a dynamic pressure against the Achilles tendon; and

a flexible, inelastic support means disposed behind said tendon cell.

19. The pneumatic sleeve assembly of claim 18 further comprising means for opening and releasably closing said ankle portion to facilitate application and removal of said assembly on the human.

20. The sleeve assembly of claim 19 wherein said means for opening and releasably closing said ankle portion comprises a flexible, inelastic strap, and said support for said tendon cell comprises a portion of said strap.

21. The sleeve assembly of claim 18 wherein said arch cell contains a foam pad whereby upon removal of said exterior pressure from said arch cell, air is drawn from said tendon cell through said conduit member into said arch cell.

22. The sleeve assembly of claim 18 wherein said tendon cell includes a hermetically sealed chamber for positioning on at least one side of the Achilles tendon.

23. The sleeve assembly of claim 22 wherein said tendon cell further includes a noninflatable medial zone for positioning on the back of the Achilles tendon.

24. The sleeve assembly of claim 18 wherein said tendon cell comprises two walls sealed together along common edges thereof to form a pocket.

25. The sleeve assembly of claim 20 wherein said strap is releasably engageable by a plurality of hooks.

26. The sleeve assembly of claim 20 wherein said strap comprises a woven filament material.

27. The sleeve assembly of claim 20 wherein said strap has a first end, a medial portion and a second end, and said ankle portion comprises first and second side flaps, said first end of said strap being fixedly attached to said first side flap of said ankle portion, said medial portion of said strap being fixedly attached to said second side flap of said ankle portion, and said second end of said strap being adapted to wrap around the front of the user'"'"'s ankle.

28. The sleeve assembly of claim 27 further comprising means for releasably attaching said second end of said strap to said first side flap of said ankle portion.

29. The sleeve assembly of claim 28 wherein said releasable attaching means comprises mating hook and loop materials on said second end of strap and said first flap of said ankle portion.

30. The sleeve assembly of claim 24 wherein said tendon cell further comprises a third wall such that said second wall is between said first wall and said third wall, and wherein said sleeve assembly comprises a strap, said third wall comprising means for engaging said strap.

31. The sleeve assembly of claim 18 wherein said conduit member comprises two tubes connectable together by a coupling member, said first tube is in communication with said arch cell and said second tube is in communication with said tendon cell.

32. The sleeve assembly of claim 18 wherein said tendon cell includes first and second lateral self-inflatable compartments separated by a medial non-inflatable portion.

33. A pneumatic sleeve assembly for applying dynamic pressure to the Achilles tendon of a human foot, the sleeve assembly comprising

a sleeve adapted to envelop a portion of the ankle and a portion of the foot, the sleeve comprising an ankle portion extending from the region of the ankle above the Achilles tendon to the foot and a substantially tubular foot portion surrounding the circumference of the foot in the region of the arch,

an arch cell containing a volume of air positioned within said foot portion of said sleeve so as to be located under the arch of the foot, said arch cell being in communication with a conduit member, said arch cell being fabricated from a flexible material, so that upon application of external pressure to said arch cell air is expelled through said conduit member;

and

an Achilles tendon cell containing a volume of air, said tendon cell being operatively connected to said arch cell via said conduit member, said tendon cell being positioned within said ankle portion of said sleeve so as to be located against the Achilles tendon, said tendon cell being fabricated from a flexible material, so that upon expelling of air from said arch cell through said conduit member into said tendon cell, said tendon cell exerts a dynamic pressure against the Achilles tendon.

34. The pneumatic sleeve assembly of claim 33 further comprising means for opening and releasably closing said ankle portion to facilitate application and removal of said assembly on the human.

35. The sleeve assembly of claim 34 wherein said means for opening and releasably closing said ankle portion comprises a flexible, inelastic strap, a portion of said strap extending behind said tendon cell.

36. The sleeve assembly of claim 33 wherein said arch cell contains a foam pad whereby upon removal of said exterior pressure from said arch cell, air is drawn from said tendon cell through said conduit member into said arch cell.

37. The sleeve assembly of claim 33 wherein said tendon cell includes a hermetically sealed chamber for positioning on at least one side of the Achilles tendon.

38. The sleeve assembly of claim 37 wherein said tendon cell further includes a noninflatable medial zone for positioning on the back of the Achilles tendon.

39. The sleeve assembly of claim 33 wherein said tendon cell comprises two walls sealed together along common edges thereof to form a pocket.

40. The sleeve assembly of claim 35 wherein said strap is releasably engageable by a plurality of hooks.

41. The sleeve assembly of claim 35 wherein said strap comprises a woven filament material.

42. The sleeve assembly of claim 35 wherein said strap has a first end, a medial portion and a second end, and said ankle portion comprises first and second side flaps, said first end of said strap being fixedly attached to said first side flap of said ankle portion, said medial portion of said strap being fixedly attached to said second side flap of said ankle portion, and said second end of said strap being adapted to wrap around the front of the user'"'"'s ankle.

43. The sleeve assembly of claim 42 further comprising means for releasably attaching said second end of said strap to said first side flap of said ankle portion.

44. The sleeve assembly of claim 43 wherein said releasable attaching means comprises mating hook and loop materials on said second end of strap and said first flap of said ankle portion.

45. The sleeve assembly of claim 39 wherein said tendon cell further comprises a third wall such that said second wall is between said first wall and said third wall, and wherein said sleeve assembly comprises a strap, said third wall comprising means for engaging said strap.

46. The sleeve assembly of claim 33 wherein said conduit member comprises two tubes connectable together by a coupling member, said first tube is in communication with said arch cell and said second tube is in communication with said tendon cell.

47. The sleeve assembly of claim 33 wherein said tendon cell includes first and second lateral self-inflatable compartments separated by a medial non-inflatable portion.