Bone plates with intraoperatively tapped apertures

• US 20070055249A1
• Filed: 06/07/2006
• Published: 03/08/2007
• Est. Priority Date: 06/20/2003
• Status: Abandoned Application

• Current Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Original Assignee: Acumed Llc (Berkshire Hathaway Incorporated)
• Inventors: Jensen, David, Huebner, Randall
• Application Number:
  US11/449,554
• Publication Number:
  US 20070055249A1
• Time in Patent Office: Days
• US Class Current: 606/288
• CPC Class Codes: A61B 17/1655 for tapping
• CPC Class Codes: A61B 17/1728 for holes for bone plates or plate screws
• CPC Class Codes: A61B 17/8057 the interlocking form comprising a thread
• CPC Class Codes: A61B 17/8863 Apparatus for shaping or cutting osteosynthesis equipment by medical personnel

Abstract

Systems, including apparatus, methods, and kits, for selectively tapping apertures of bone plates, to form threaded apertures during installation of the bone plates (i.e., intraoperatively).

Claims

1. A method of tapping a bone plate intraoperatively, comprising:

selecting a bone plate having an aperture;

connecting the bone plate to a bone;

forming a thread in the aperture while the bone plate is connected to the bone; and

aspirating debris generated by the step of forming.

2. The method of claim 1, wherein the step of forming is performed with a tap device, wherein the debris is disposed in fluid, and wherein the step of aspirating includes a step of drawing the fluid away from the bone plate along a surface of the tap device.

3. The method of claim 1, wherein the step of forming is performed with a tap device having a long axis, wherein the debris is disposed in fluid, and wherein the step of aspirating includes a step of drawing the fluid generally parallel to the long axis at positions opposing one another across the long axis.

4. The method of claim 1, wherein the step of forming is performed with a tap device, and wherein the step of aspirating is performed with a suction mechanism including a conduit, further comprising a step of connecting the conduit to the tap device.

5. The method of claim 4, the tap device including a shaft, further comprising a step of disposing at least a portion of the shaft in the conduit.

6. The method of claim 1, wherein the step of forming includes a step of forming a thread using a tap device having a shaft, and wherein at least a portion of the shaft remains outward of the bone plate during the step of forming.

7. The method of claim 1, wherein the step of forming includes a step of cutting the bone plate adjacent the aperture.

8. The method of claim 1, the aperture having a wall, wherein the step of forming includes a step of deforming the wall.

9. The method of claim 8, wherein the step of deforming the wall includes a step of creating one or more thread segments from a ridge-free region of the wall.

10. The method of claim 8, the wall defining a ridge, wherein the step of deforming the wall includes a step of repositioning the ridge in relation to the aperture to form the thread.

11. A system for tapping a bone plate intraoperatively, comprising:

a bone plate having an aperture;

a tap device configured to form a thread in the aperture while the bone plate is connected to the bone; and

a suction mechanism configured to aspirate debris created by forming the thread.

12. The system of claim 11, wherein the suction mechanism connects to the tap device such that fluid carrying the debris flows along a surface of the tap device.

13. The system of claim 11, wherein the tap device has a long axis, and wherein the suction mechanism connects to the tap device such that fluid carrying the debris flows generally parallel to the long axis at positions opposing one another across the long axis.

14. The system of claim 11, wherein the tap device has a shaft, wherein at least a segment of the shaft is configured to remain outward of the bone plate and bone while the tap device is forming the thread, and wherein the suction mechanism includes a conduit configured to receive at least a portion of the shaft.

15. The system of claim 14, wherein a first portion of the conduit is configured to be received on the shaft, and wherein a second portion of the conduit is configured to extend transversely from the first portion, away from the shaft.

16. The system of claim 14, wherein the suction mechanism includes a pump connected to the conduit, further comprising a collection mechanism configured to restrict debris in the conduit from reaching the pump.

17. A method of tapping a bone plate intraoperatively, comprising:

selecting a bone plate having an aperture and a ridge-free wall region defining at least a portion of the aperture;

connecting the bone plate to a bone; and

deforming the ridge-free wall region to form one or more segments of a thread in the wall region while the bone plate is connected to the bone.

18. The method of claim 17, wherein the step of selecting a bone plate includes a step of selecting a bone plate having a pair of ridge-free wall regions formed by flared walls flaring away from one another toward respective inner and outer surfaces of the bone plate, and wherein the step of deforming includes a step of deforming a ridge-free wall region of each flared wall to form the one or more segments of a thread.

19. The method of claim 17, wherein the step of deforming is performed using a cannulated tap device received on a wire that guides the tap device.

20. The method of claim 17, wherein the step of deforming is performed with a tap device driven by hand.