Hand-held instruments that access interior body regions

• US 20070197935A1
• Filed: 04/24/2007
• Published: 08/23/2007
• Est. Priority Date: 10/19/1999
• Status: Abandoned Application

• Current Assignee: Orthophoenix, LLC (Marathon Patent Group, Inc.)
• Original Assignee: Kyphon Incorporated
• Inventors: Ferdinand, Arthur, Reo, Michael, Reiley, Mark, Scribner, Robert
• Application Number:
  US11/789,244
• Publication Number:
  US 20070197935A1
• Time in Patent Office: Days
• US Class Current: 600/567
• CPC Class Codes: A61B 17/1671 for the spine
• CPC Class Codes: A61B 17/34 Trocars; Puncturing needles pointed biopsy instruments A61B10/0233; devices for piercing the ear-lobes A44C7/001; seals or hemostasis valves A61M39/06
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 17/8816 characterised by the conduit, e.g. tube, along which fluid flows into the body or by conduit connections
• CPC Class Codes: A61B 17/8819 characterised by the introducer proximal part, e.g. cannula handle, or by parts which are inserted inside each other, e.g. stylet and cannula A61B17/8825 takes precedence
• CPC Class Codes: A61B 17/8822 characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
• CPC Class Codes: A61B 17/885 Tools for expanding or compacting bones or discs or cavities therein A61B17/8805, A61B17/7097 take precedence
• CPC Class Codes: A61B 17/8855 inflatable, e.g. kyphoplasty balloons
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61B 2017/00424 ergonomic, e.g. fitting in fist
• CPC Class Codes: A61B 2017/00429 with a roughened portion
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2090/0813 Accessories designed for easy sterilising, i.e. re-usable
• CPC Class Codes: A61B 2090/0814 Preventing re-use

Abstract

A first instrument having a distal end is sized and configured to penetrate tissue and a proximal end comprising a first handle assembly. A second instrument including an interior lumen is sized and configured to accept passage of the first instrument. The second instrument has a proximal end comprising a second handle assembly sized and configured to releasably interlock with the first handle assembly to form a composite instrument sized and configured to provide percutaneous access to a cancellous bone region. The second handle assembly is also sized and configured to permit controllably release by a user of the first handle assembly from the second handle assembly to allow removal of the first instrument from the interior lumen. At least one additional instrument is sized and configured for passage through the interior lumen of the second instrument upon removal of the first instrument.

Claims

1. A system comprising

a first instrument having a distal end sized and configured to penetrate tissue and a proximal end comprising a first handle assembly,

a second instrument including an interior lumen sized and configured to accept passage of the first instrument, the second instrument having a proximal end comprising a second handle assembly sized and configured to releasably interlock with the first handle assembly to form a composite instrument sized and configured to provide percutaneous access to a cancellous bone region, the second handle assembly also sized and configured to permit controllably release by a user of the first handle assembly from the second handle assembly to allow removal of the first instrument from the interior lumen, and

at least one additional instrument sized and configured for passage through the interior lumen of the second instrument upon removal of the first instrument.

2. A system according to claim 1

wherein the additional instrument comprises a delivery tube sized and configured to pass through the interior lumen of the second instrument upon removal of the first instrument, the delivery tube having a proximal end including a connector for coupling the delivery tube to an injector of bone filling material to convey the bone filling material into the cancellous bone region.

3. A system according to claim 1

wherein the additional instrument comprises a third instrument sized and configured to pass through the interior lumen of the second instrument upon removal of the first instrument, the third instrument having a distal region sized and configured to treat the cancellous bone region.

4. A system according to claim 3

wherein the distal region is sized and configured to biopsy cancellous bone.

5. A system according to claim 3

wherein the distal region is sized and configured to harvest cancellous bone.

6. A system according to claim 3

wherein the distal region is sized and configured to introduce a therapeutic material.

7. A system according to claim 3

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material.

8. A system according to claim 3

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material by contacting the cancellous bone region.

9. A system according to claim 8

wherein the distal region is capable of expansion into contact with the cancellous bone region.

10. A system according to claim 8

wherein the distal region is capable of inflation into contact with the cancellous bone region.

11. A system according to claim 3

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material by creating a cavity in the cancellous bone region.

12. A system according to claim 1

wherein the distal region is sized and configured to move fractured cortical bone.

13. A system according to claim 1

wherein the second instrument comprises a cannula.

14. A system comprising

a first instrument having a distal end sized and configured to penetrate tissue and a proximal end comprising a first handle assembly,

a second instrument including an interior lumen sized and configured to accept passage of the first instrument, the second instrument having a proximal end comprising a second handle assembly sized and configured to releasably interlock with the first handle assembly to form a composite instrument sized and configured to provide percutaneous access a cancellous bone region, the second handle assembly also sized and configured to permit controllably release by a user of the first handle assembly from the second handle assembly to allow removal of the first instrument from the interior lumen,

a third instrument sized and configured to pass through the interior lumen of the second instrument upon removal of the first instrument, the third instrument having a distal region sized and configured to treat the cancellous bone region, and

a delivery tube sized and configured to pass through the interior lumen of the second instrument upon removal of the third instrument, the delivery tube having a proximal end including a connector for coupling the delivery tube to an injector of bone filling material to convey the bone filling material into the cancellous bone region treated by the third instrument.

15. A system according to claim 14

wherein the distal region is sized and configured to biopsy cancellous bone.

16. A system according to claim 14

wherein the distal region is sized and configured to harvest cancellous bone.

17. A system according to claim 14

wherein the distal region is sized and configured to introduce a therapeutic material.

18. A system according to claim 14

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material.

19. A system according to claim 18

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material by contacting the cancellous bone region.

20. A system according to claim 19

wherein the distal region is capable of expansion into contact with the cancellous bone region.

21. A system according to claim 19

wherein the distal region is capable of inflation into contact with the cancellous bone region.

22. A system according to claim 18

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material by creating a cavity in the cancellous bone region.

23. A system according to claim 14

wherein the distal region is sized and configured to move fractured cortical bone.

24. A system according to claim 14

wherein the second instrument comprises a cannula.

25. A system comprising

a first instrument having a distal end sized and configured to penetrate tissue and a proximal end comprising a first handle assembly,

a second instrument including an interior lumen sized and configured to accept passage of the first instrument, the second instrument having a proximal end comprising a second handle assembly sized and configured to releasably interlock with the first handle assembly to form a composite instrument sized and configured to provide percutaneous access a cancellous bone region, the second handle assembly also sized and configured to permit controllably release by a user of the first handle assembly from the second handle assembly to allow removal of the first instrument from the interior lumen,

an injector tool to inject bone filling material, and

a delivery tube sized and configured to pass through the interior lumen of the second instrument upon removal of the first instrument, the delivery tube having a proximal end including a connector for coupling the delivery tube to the injector tool to convey bone filling material into the cancellous bone region.

26. A system according to claim 25

wherein the injector tool includes a reservoir for receiving a bone filling material and an ejector sized and configured to expel the bone filling material from the reservoir.

27. A system according to claim 25

wherein the injector tool includes a syringe.

28. A system according to claim 25

wherein the bone filling material comprises bone cement.

29. A system according to claim 25

wherein the bone filling material comprises bone graft tissue.

30. A system according to claim 25

wherein the second instrument comprises a cannula.

31. A system comprising

a first instrument having a distal end sized and configured to penetrate tissue and a proximal end comprising a first handle assembly,

a second instrument including an interior lumen sized and configured to accept passage of the first instrument, the second instrument having a proximal end comprising a second handle assembly sized and configured to releasably interlock with the first handle assembly to form a composite instrument sized and configured to provide percutaneous access a cancellous bone region, the second handle assembly also sized and configured to permit controllably release by a user of the first handle assembly from the second handle assembly to allow removal of the first instrument from the interior lumen,

a third instrument sized and configured to pass through the interior lumen of the second instrument upon removal of the first instrument, the third instrument having a distal region sized and configured to treat the cancellous bone region,

an injector tool to inject bone filling material, and

a delivery tube sized and configured to pass through the interior lumen of the second instrument upon removal of the third instrument, the delivery tube having a proximal end including a connector for coupling the delivery tube to the injector tool to convey bone filling material into the cancellous bone region treated by the third instrument.

32. A system according to claim 31

wherein the distal region is sized and configured to biopsy cancellous bone.

33. A system according to claim 31

wherein the distal region is sized and configured to harvest cancellous bone.

34. A system according to claim 31

wherein the distal region is sized and configured to introduce a therapeutic material.

35. A system according to claim 31

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material.

36. A system according to claim 35

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material by contacting the cancellous bone region.

37. A system according to claim 36

wherein the distal region is capable of expansion into contact with the cancellous bone region.

38. A system according to claim 36

wherein the distal region is capable of inflation into contact with the cancellous bone region.

39. A system according to claim 35

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material by creating a cavity in the cancellous bone region.

40. A system according to claim 31

wherein the distal region is sized and configured to move fractured cortical bone.

41. A system according to claim 31

wherein the injector tool includes a reservoir for receiving a bone filling material and an ejector sized and configured to expel the bone filling material from the reservoir.

42. A system according to claim 31

wherein the injector tool includes a syringe.

43. A system according to claim 31

wherein the bone filling material comprises bone cement.

44. A system according to claim 31

wherein the bone filling material comprises bone graft tissue.

45. A system according to claim 31

wherein the second instrument comprises a cannula.

46. A method comprising

providing a first instrument having a distal end sized and configured to penetrate tissue and a proximal end comprising a first handle assembly,

providing a second instrument including an interior lumen sized and configured to accept passage of the first instrument, the second instrument having a proximal end comprising a second handle assembly sized and configured to releasably interlock with the first handle assembly,

forming a composite instrument by interlocking the first and second handle assemblies,

manipulating the composite handle to through tissue to provide percutaneous access to a cancellous bone region,

releasing the first handle assembly from the second handle assembly to remove the first instrument from the interior lumen,

providing an additional instrument, and

passing the additional instrument through the interior lumen of the second instrument into the cancellous bone region.

47. A method according to claim 46

wherein the additional instrument comprises a delivery tube sized and configured to pass through the interior lumen of the second instrument upon removal of the first instrument, the delivery tube having a proximal end including a connector for coupling the delivery tube to an injector of bone filling material to convey the bone filling material into the cancellous bone region.

48. A method according to claim 46

wherein the additional instrument includes a third instrument sized and configured to pass through the interior lumen of the second instrument upon removal of the first instrument, the third instrument having a distal region sized and configured to treat the cancellous bone region.

49. A method according to claim 48

wherein the distal region is sized and configured to biopsy cancellous bone.

50. A method according to claim 48

wherein the distal region is sized and configured to harvest cancellous bone.

51. A method according to claim 48

wherein the distal region is sized and configured to introduce a therapeutic material.

52. A method according to claim 48

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material.

53. A method according to claim 52

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material by contacting the cancellous bone region.

54. A method according to claim 53

wherein the distal region is capable of expansion into contact with the cancellous bone region.

55. A method according to claim 53

wherein the distal region is capable of inflation into contact with the cancellous bone region.

56. A method according to claim 52

wherein the distal region is sized and configured to modify the cancellous bone region to receive a bone filling material by creating a cavity in the cancellous bone region.

57. A system according to claim 48

wherein the distal region is sized and configured to move fractured cortical bone.

58. A method according to claim 46

further including providing a delivery tube sized and configured to pass through the interior lumen of the second instrument upon removal of the third instrument,

coupling the delivery tube to an injector of bone filling material,

conveying the bone filling material from the injector through the delivery tube and into the cancellous bone region treated by the third instrument.