METHOD AND APPARATUS FOR CREATING VARIABLE STIFFNESS AND/OR REDUCTION OF SOFT TISSUE

• US 20080097380A1
• Filed: 09/21/2006
• Published: 04/24/2008
• Est. Priority Date: 09/21/2006
• Status: Abandoned Application

• Current Assignee: Kasey K. Li
• Original Assignee: Kasey K. Li
• Inventors: Li, Kasey K.
• Application Number:
  US11/534,196
• Publication Number:
  US 20080097380A1
• Time in Patent Office: Days
• US Class Current: 604/506
• CPC Class Codes: A61F 5/566 Intra-oral devices

Abstract

A method and apparatus for creating variable stiffness along a soft tissue region is disclosed herein generally having an implantable device of bio-absorbable or biodegradable material. The implantable device has a drug of variable concentration along the length of the device to promote formation of an abscess and/or induce tissue necrosis following placement of the device in soft tissue. The abscess and/or tissue necrosis forms scar tissue having a variable stiffness along the soft tissue which in turn reduces the vibration of the soft tissue.

Claims

1. An apparatus for creating variable stiffness along a soft tissue region comprising:

an implantable device of bio-absorbable or biodegradable material;

wherein the device has a drug to promote formation of an abscess and/or induce tissue necrosis following placement of the device in soft tissue; and

wherein the drug is of a variable concentration gradient along a length of the device whereby the abscess and/or tissue necrosis forms scar tissue having variable stiffness along the soft tissue region.

2. The apparatus of claim 1, wherein the soft tissue is a portion of a soft palate.

3. The apparatus of claim 1, wherein the soft tissue is a portion of a tongue.

4. The apparatus of claim 1, wherein the soft tissue is a portion of a turbinate.

5. The apparatus of claim 1, wherein the drug concentration gradient is linear.

6. The apparatus of claim 1, wherein the drug concentration gradient is non-linear.

7. The apparatus of claim 1, wherein the implantable device is flexible along the length.

8. The apparatus of claim 1, wherein the implantable device is a geometric shape selected from the group consisting of tubes, spheres, ovals, rectangles, cylinders, and tapered.

9. The apparatus of claim 1, wherein the implantable device comprises a plurality of intertwined fibers.

10. The apparatus of claim 1, wherein at least a portion of the implantable device is fibrous.

11. The apparatus of claim 1, wherein the implantable device has a smooth or substantially smooth outer surface.

12. The apparatus of claim 1, wherein the implantable device has a rough or substantially rough outer surface.

13. A method for creating variable stiffness of a soft tissue region comprising:

providing an implantable device of bio-absorbable or biodegradable material wherein the device has a drug of a variable concentration gradient along a length of the device; and

inserting the device into a desired deployment site within the soft tissue region.

14. The method of claim 13, wherein the soft tissue is a portion of a soft palate.

15. The method of claim 13, wherein the soft tissue is a portion of a tongue.

16. The method of claim 13, wherein the soft tissue is a portion of a turbinate.

17. The method of claim 13, wherein the drug concentration gradient is linear.

18. The method of claim 13, wherein the drug concentration gradient is non-linear.

19. The method of claim 13, wherein inserting comprises inserting the implantable device aligned anterior to posterior of the soft tissue region.

20. The method of claim 13, wherein inserting comprises inserting the implantable device at an angle relative to the anterior to posterior axis of the soft tissue.

21. The method of claim 13, wherein inserting comprises inserting the implantable device aligned transverse to the anterior to posterior axis of the soft tissue.

22. The method of claim 13, further comprising inserting a plurality of implantable devices.

23. The method of claim 22, wherein inserting comprises inserting the implantable device parallel relative to other implantable devices.

24. The method of claim 22, wherein inserting comprises inserting at least on implantable device at an angle relative to other implantable devices.

25. The method of claim 22, wherein inserting comprises inserting the implantable devices having the same drug concentration gradient relative to other implantable devices.

26. The method of claim 22, wherein inserting comprises inserting at least one implantable device having a different drug concentration relative to the other implantable devices.

27. The method of claim 13, wherein inserting comprises inserting the implantable device by placing the implantable device into a lumen of a needle and the needle is advanced through the soft tissue to the desired deployment site.

28. The method of claim 27, wherein the needle has a proximal end and a distal tip shaped for penetrating soft tissue.

29. The method of claim 27, wherein the lumen has a plunger adjacent to the implantable device.

30. The method of claim 29, wherein inserting the implantable device comprises ejecting the implantable device from the distal tip of the needle when the plunger is urged distally relative to the needle.

31. The method of claim 29, wherein the needle is slidable proximally relative to the plunger and the implantable device.

32. The method of claim 31, wherein inserting the implantable device comprises ejecting the implantable device from the distal tip of the needle when the needle is urged proximally relative to the plunger and the implantable device.

33. A system for creating variable stiffness of a soft tissue region comprising:

an implantable device of bio-absorbable or biodegradable material wherein the implantable device has a drug of a variable concentration gradient along a length of the implantable device; and

a delivery tool for inserting the implantable device into soft tissue.

34. The system of claim 33, wherein the soft tissue is a portion of a soft palate.

35. The system of claim 33, wherein the soft tissue is a portion of a tongue.

36. The system of claim 33, wherein the soft tissue is a portion of a turbinate.

37. The system of claim 33, wherein the drug concentration gradient is linear.

38. The system of claim 33, wherein the drug concentration gradient is non-linear.

39. The system of claim 33, wherein the implantable device is flexible along the length.

40. The system of claim 33, wherein the implantable device is a geometric shape selected from the group consisting of tubes, spheres, ovals, rectangles, cylinders, and tapered.

41. The system of claim 33, wherein the implantable device comprises a plurality of intertwined fibers.

42. The system of claim 33, wherein at least a portion of the implantable device is fibrous.

43. The system of claim 33, wherein the implantable device has a smooth or substantially smooth outer surface.

44. The system of claim 33, wherein the implantable device has a rough or substantially rough outer surface.

45. The system of claim 33, further comprising a plurality of implantable devices.

46. The system of claim 45, wherein the implantable devices have the same drug concentration gradient.

47. The system of claim 45, wherein at least one implantable device has a different drug concentration relative to the other implantable devices.

48. The system of claim 33, wherein the delivery tool comprises:

a handle;

a needle with a proximal end connected to the handle and a distal tip shaped for penetrating soft tissue wherein the needle defines a central lumen;

a plunger within the lumen adjacent to the implantable device; and

an actuator which controls the advancement or retraction of the implantable device.

49. The system of claim 48, wherein the actuator is connected to the plunger such that the implantable device is ejected from the distal tip of the needle when the plunger is urged via the actuator distally relative to the handle.

50. The system of claim 48, wherein the needle is slidable proximally relative to the handle.

51. The system of claim 50, wherein the actuator is connected to the needle such that the implantable device is ejected from the distal tip of the needle when the needle is urged via the actuator proximally relative to the handle.