Inflatable Device for Restoring Anatomy of Fractured Bone

• US 20070123877A1
• Filed: 11/15/2006
• Published: 05/31/2007
• Est. Priority Date: 11/15/2005
• Status: Abandoned Application

• Current Assignee: AOI Medical, Inc.
• Original Assignee: AOI Medical, Inc.
• Inventors: Goldin, Mark, Schumacher, Brian, Rosenwasser, Melvin, Christy, William
• Application Number:
  US11/559,993
• Publication Number:
  US 20070123877A1
• Time in Patent Office: Days
• US Class Current: 606/62
• CPC Class Codes: A61B 17/7225 for bone compression
• CPC Class Codes: A61B 17/7275 with expanding cylindrical parts
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2090/363 Use of fiducial points

Abstract

Provided is a medical device for restoring the anatomy of bones comprising at least one inflatable device, where the inflatable device may be inflated to facilitate reconstituting the bone. Disclosed are a plurality of inflatable devices that may be used in combination in accordance with methods for reconstituting a fractured bone or other tissue.

Claims

1. An inflatable apparatus comprising:

(a) an inflatable member, the inflatable member configured to stabilize a bone, wherein the inflatable member is configured for insertion into a bone cavity; and

(b) a first delivery lumen, wherein the first delivery lumen is coupled with the inflatable member and is configured to inflate the inflatable member.

2. The apparatus of claim 1, further comprising at least one support member associated with the inflatable member.

3. The apparatus of claim 2, wherein the support member is a longitudinally extending member.

4. The apparatus of claim 2, wherein the support member is an annular member.

5. The apparatus of claim 1, wherein the inflatable member includes a first chamber and a second chamber.

6. The apparatus of claim 5, further comprising at least one support member associated with the inflatable member.

7. The apparatus of claim 5, wherein the first chamber and the second chamber are axially aligned.

8. The apparatus of claim 7, wherein the first chamber and the second chamber are longitudinally adjacent.

9. The apparatus of claim 5, wherein the first chamber and the second chamber are coaxial.

10. The apparatus of claim 1, wherein the inflatable member includes projections.

11. The apparatus of claim 10, wherein a first region of projections is provided at a first region of the inflatable member and a second region of projections is provided at a second region of the inflatable member.

12. The apparatus of claim 11, wherein the first region of the inflatable member is at about the proximal end of the inflatable member and the second region of the inflatable member is at about the distal end of the inflatable member.

13. The apparatus of claim 10, wherein the projections are operably configured for inflation.

14. The apparatus of claim 13, wherein the projections are operably configured to be inflated independently from the inflatable member.

15. The apparatus of claim 14, wherein the projections are inflated via a dedicated delivery lumen.

16. The apparatus of claim 10, wherein the projections are fluidly connected with the inflatable member such that inflation of the inflatable member inflates the projections.

17. The apparatus of claim 10, wherein the projections are integral with the inflation member.

18. The apparatus of claim 10, wherein the projections are elements permanently coupled with the inflation member.

19. The apparatus of claim 10, wherein the projections are selected from the group consisting of internal projections, external projections, and combinations thereof.

20. The apparatus of claim 10, wherein the projections are configured for a use selected from the group consisting of increasing the rigidity of the inflatable member, improving the stability of the inflatable member, improving the stability of the bone, reducing the coefficient of friction between the inflatable member and the bone, to prevent fractured portions of the bone from compression upon themselves, and combinations thereof.

21. The apparatus of claim 5, further comprising a second delivery lumen, wherein the first chamber is associated with the first delivery lumen and the second chamber is associated with the second delivery lumen.

22. The apparatus of claim 1, wherein the inflatable member is configured for a use selected from the group consisting of scaffolding, increasing the rigidity of the inflatable member, improving the stability of the inflatable member, improving the stability of the bone, reducing the coefficient of friction between the inflatable member and the bone, to prevent fractured portions of the bone from compression upon themselves, and combinations thereof.

23. A method for stabilizing a bone fracture comprising:

providing a first inflatable apparatus, the first inflatable apparatus comprising;

(a) a first inflatable member, the first inflatable member being configured to stabilize a bone, wherein the first inflatable member is configured for insertion into a first tissue cavity; and

(b) a first tether, wherein the first tether is coupled with the first inflatable member and is configured to inflate the first inflatable member;

providing the first tissue cavity;

inserting the first inflatable apparatus into the first tissue cavity; and

inflating the first inflatable apparatus.

24. The method of claim 23, wherein the first inflatable member is provided with a support member operably configured to stabilize the fractured bone.

25. The method of claim 23, wherein the first inflatable member is provided with a plurality of projections.

26. The method of claim 23, further comprising the steps of;

providing a second inflatable apparatus, the second inflatable apparatus comprising a second inflatable member, the second inflatable member being configured to stabilize the bone, wherein the second inflatable member is configured for insertion into the bone;

inserting the second inflatable apparatus into the bone; and

inflating the second inflatable apparatus.

27. The method of claim 26, wherein the first inflatable member and the second inflatable member are inflated with the first tether.

28. The method of claim 26, wherein the second inflatable apparatus further comprises a second tether, wherein the second tether is coupled with the second inflatable member and is configured to inflate the second inflatable member.

29. The method of claim 28, wherein the first inflatable apparatus and the second inflatable apparatus are coupled.

30. The method of claim 29, wherein the first inflatable apparatus and the second inflatable apparatus are axially coupled.

31. The method of claim 28, further comprising the steps of;

inflating the first inflatable apparatus in the first cavity of the bone; and

inflating the second inflatable apparatus in a second cavity of the bone.

32. The method of claim 31, further comprising the step of joining the bone by manipulating the first inflatable apparatus relative to the second apparatus.

33. The method of claim 32, wherein the step of joining the bone comprises manipulating the first inflatable apparatus with the first tether and the second inflatable apparatus with the second tether.

34. The method of claim 32, wherein the first cavity is in a first bone portion of the fractured bone and the second cavity is in a second bone portion of the bone, wherein the first inflatable apparatus and the second inflatable apparatus are manipulated to join the first bone portion and the second bone portion.

35. The method of claim 32, wherein the first cavity is in a first bone portion and the second cavity is a cavity in the shaft of the bone extending across a fracture in the bone.

36. The method of claim 32, wherein the step of joining the fractured bone further comprises providing an axial force with the first inflatable apparatus and a radial force with the second inflatable apparatus.

37. The method of claim 36, wherein the axial force is provided such that the first bone portion and the second bone portion are restricted from collapsing upon each other.

38. The method of claim 27, further comprising the steps of;

inflating the first inflatable apparatus in the first cavity of the bone; and

inflating the second inflatable apparatus in a second cavity of the bone.