LAGWIRE SYSTEM AND METHOD FOR THE FIXATION OF BONE FRACTURES

• US 20110034925A1
• Filed: 10/06/2010
• Published: 02/10/2011
• Est. Priority Date: 10/18/2001
• Status: Abandoned Application

• Current Assignee: OrthoIP, LLC
• Original Assignee: OrthoIP, LLC
• Inventors: Tipirneni, Kishore, Vassello, Wayne
• Application Number:
  US12/898,975
• Publication Number:
  US 20110034925A1
• Time in Patent Office: Days
• US Class Current: 606/62
• CPC Class Codes: A61B 17/62 Ring frames, i.e. devices extending around the bones to be positioned A61B17/6433 , A61B17/66 take precedence
• CPC Class Codes: A61B 17/683 comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
• CPC Class Codes: A61B 17/685 Elements to be fitted on the end of screws or wires, e.g. protective caps
• CPC Class Codes: A61B 17/7053 with parts attached to bones or to each other by flexible wires, straps, sutures or cables
• CPC Class Codes: A61B 17/74 Devices for the head or neck or trochanter of the femur trochanteric devices connected to the proximal part of an endoprosthetic femoral shaft A61F2/30739; endoprosthetic internal fixation devices for the head or neck of the femur A61F2/3601
• CPC Class Codes: A61B 17/861 specially shaped for gripping driver
• CPC Class Codes: A61B 17/8625 Shanks, i.e. parts contacting bone tissue
• CPC Class Codes: A61B 17/864 hollow, e.g. with socket or cannulated
• CPC Class Codes: A61B 17/8685 comprising multiple separate parts
• CPC Class Codes: A61B 17/8863 Apparatus for shaping or cutting osteosynthesis equipment by medical personnel
• CPC Class Codes: A61B 17/8869 Tensioning devices
• CPC Class Codes: A61B 17/8877 characterised by the cross-section of the driver bit
• CPC Class Codes: A61B 17/92 Impactors or extractors, e.g. for removing intramedullary devices insertion or extraction of artificial joints A61F2/4603

Abstract

A lagwire system and method for facilitating the fixation of bone fractures is disclosed. The lagwire system includes an anchor component, a wire, a sleeve and a cap. The sleeve and cap are operable to slide along the length of the wire and also operable to be used to fixate a fracture individually by using a canal prepared by the anchor and wire.

Claims

1. A method for treating a bone fracture comprising:

inserting a lagwire system into said bone, wherein said lagwire system comprises an anchor and wire;

navigating said lagwire system to a desired position within said bone causing said lagwire system to ream a canal through a center portion of said bone and across said bone fracture;

removing said lagwire device; and

inserting a polymer wire into said canal such that said polymer wire bridges said bone fracture.

2. The method according to claim 1, wherein said polymer wire is a peek material.

3. The method according to claim 1, wherein said polymer wire is threaded.

4. The method according to claim 1, further comprising applying tension on said lagwire system to decrease a gap at said bone fracture;

5. The method according to claim 1, further comprising threading a cap into said canal after said polymer wire is inserted.

6. The method according to claim 5, further comprising retaining said polymer wire in position relative to said bone with said cap.

7. The method according to claim 6, wherein said cap is configured to thread onto a proximal portion of said polymer wire.

8. The method according to claim 1, wherein said polymer wire is cannulated such that said polymer wire is a sleeve that is configured to slide over another wire.

9. The method according to claim 8, wherein a treatment is delivered through a center of said polymer wire.

10. The method according to claim 9, wherein said treatment comprises at least one of a medication, an adhesive, an ultrasonic vibration, and a bonding material.

11. An implant device configured to be inserted into a canal prepared by a flexible reaming device, said implant device comprising a flexible sleeve comprised of a PEEK material having sufficient rigidity to be inserted into said canal.

12. The device of claim 11, wherein said sleeve is configured to receive a wire and is configured to slide longitudinally along a length of said wire.

13. The device of claim 12, wherein said sleeve comprises external threads along at least a portion of an exterior surface.

14. The device of claim 11, wherein said sleeve is configured to provide fixation of said first bone portion relative to said second bone portion at a specified length along said sleeve.

15. The device of claim 11, wherein said flexible wire includes a medicated coating.

16. The device of claim 15, wherein said medicated coating is an antibiotic.

17. The device of claim 13, further comprising a cap having internal threads which mate with said external threads of said sleeve, wherein said cap further comprises a threaded external distal portion which mates with said first bone portion as a screw interface, and wherein said cap is configured to receive said sleeve such that said cap is configured to slide distally along a length of said sleeve, wherein said cap is configured to engage said sleeve such that said sleeve is at least partially restricted from moving distally relative to said cap.

18. The implant device of claim 11, further comprising an anchor and flexible wire, wherein said anchor has a tip.

19. The implant device of claim 11, wherein said sleeve comprises a proximal end configured to receive a driver.

20. The implant device of claim 17, wherein said sleeve and said cap are configured to provide reduction between said first bone portion and said second bone portion.