Systems and methods for placing materials into bone

• US 7,153,307 B2
• Filed: 07/11/2003
• Issued: 12/26/2006
• Est. Priority Date: 08/14/1998
• Status: Expired due to Fees

• Current Assignee: Orthophoenix, LLC (Marathon Patent Group, Inc.)
• Original Assignee: Kyphon Incorporated
• Inventors: Scribner, Robert M, Reo, Michael L, Reiley, Mark A, Boucher, Ryan
• Primary Examiner(s): Philogene, Pedro
• Application Number:
  US10/617,976
• Publication Number:
  US 20040010260A1
• Time in Patent Office: 1,264 Days
• Field of Search: 606/93, 606/92, 606/94, 606/95, 606/96, 606/102, 606/105, 606/192, 606/194
• US Class Current: 606/93
• CPC Class Codes: A61B 17/1671 for the spine
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 17/7097 Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants disc prostheses made of inflatable chambers or pockets filled with fluid A61F2/441; replacing the nucleus pulposus A61F2002/444
• CPC Class Codes: A61B 17/8805 for introducing fluid filler into bone or extracting it A61B17/7097, A61B17/8833 take precedence
• 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 17/8822 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 17/8833 Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means
• CPC Class Codes: A61B 17/8855 inflatable, e.g. kyphoplasty balloons
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61B 2017/00464 for use with different instruments with hole for different instruments A61B2017/22072
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2050/0065 Peelable cover
• CPC Class Codes: A61B 2090/062 penetration depth
• CPC Class Codes: A61B 50/33 Trays
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/44 for the spine, e.g. vertebrae, spinal discs
• CPC Class Codes: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61F 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/3008 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2002/4662 : for measuring penetration depth
• CPC Class Codes: A61F 2250/0098 : radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2310/00353 : Bone cement, e.g. polymethylmethacrylate or PMMA

Abstract

Systems and methods for delivering material into bone deploy a cannula through soft tissue to establish a subcutaneous path into bone. A material is introduced into bone through the cannula. The systems and methods advance a tamping instrument through the cannula to urge material residing in the cannula into bone. The introducing step delivers material at a pressure no greater than about 360 psi.

Claims

1. A system comprising

an access tool sized and configured to establish an access path through soft tissue to bone having an interior volume occupied, at least in part, by cancellous bone,

a void forming tool sized and configured to be introduced through the access path to form a void in cancellous bone,

a nozzle sized and configured to pass through the access path and including an interior bore defining a fixed interior volume to receive and deliver a measured volume of filling material into the void, and

an auxiliary tool sized and configured to be advanced through the interior bore and urge filling material from the nozzle.

2. A system according to claim 1

wherein the access tool comprises a cannula.

3. A system according to claim 1

wherein the void forming tool is carried by an elongate member sized and configured to pass through the access path.

4. A system according to claim 3

wherein the elongate member comprises a catheter.

5. A system according to claim 1

wherein the void forming tool comprises an expandable body.

6. A system according to claim 5

wherein the expandable body, when expanded, assumes a non-spherical shape.

7. A system according to claim 1

wherein the nozzle comprises an elongate tube.

8. A system according to claim 1

further including a receptacle for holding a volume of filling material, and

wherein the nozzle includes a connector to couple the nozzle to the receptacle.

9. A system according to claim 1

wherein the nozzle has a length and includes measured markings along the length.

10. A system according to claim 1

wherein the auxiliary tool comprises an elongate body.

11. A system according to claim 1

wherein the nozzle is made from a generally flexible material.

12. A system according to claim 1

wherein the nozzle is made from a generally rigid material.

13. A system according to claim 1

wherein the filling material comprises at least one of a flowable material that hardens to a rigid state, a bone cement, autograft material, allograft material, calcium carbonate, demineralized bone matrix material, and calcium phosphate.

14. A system comprising

a cannula sized and configured to establish an access path through soft tissue to bone having an interior volume occupied, at least in part, by cancellous bone,

a void forming tool sized and configured to be introduced through the cannula to form a void in cancellous bone,

a nozzle that can be manipulated independent of the cannula and that is sized and configured to pass through the cannula, the nozzle including an interior bore to receive and deliver a measured volume of filling material into the void, and

an auxiliary tool that can be manipulated independently of the nozzle and the cannula and that is sized and configured to be advanced through the interior bore and urge filling material from the nozzle, the auxiliary tool, when fully advanced, substantially fully occupying the entire interior bore of the nozzle.

15. A system according to claim 14

wherein the filling material comprises at least one of a flowable material that hardens to a rigid state, a bone cement, autograft material, allograft material, calcium carbonate, demineralized bone matrix material, and calcium phosphate.

16. A system according to claim 14

wherein the nozzle is made from a generally flexible material.

17. A system according to claim 14

wherein the nozzle is made from a generally rigid material.

18. A system according to claim 14

wherein the void forming tool comprises an expandable body.