Bone drill and methods of use

• US 20070282344A1
• Filed: 04/20/2007
• Published: 12/06/2007
• Est. Priority Date: 06/01/2006
• Status: Active Grant

• Current Assignee: OSTO Innovations LLC
• Original Assignee: OSTO Innovations LLC
• Inventors: Yedlicka, Joseph W., Till, Robert A., Yedlicka, Nancy S., Till, Patricia M.
• Granted Patent: US 8,465,491 B2
• Time in Patent Office: Days
• US Class Current: 606/80
• CPC Class Codes: A61B 17/1615 Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
• CPC Class Codes: A61B 17/1622 Drill handpieces A61B17/1626, A61B17/1628 take precedence
• CPC Class Codes: A61B 17/1624 Drive mechanisms therefor
• CPC Class Codes: A61B 17/1633 Sleeves, i.e. non-rotating parts surrounding the bit shaft, e.g. the sleeve forming a single unit with the bit shaft A61B17/1644 takes precedence
• CPC Class Codes: A61B 17/1671 for the spine
• CPC Class Codes: A61B 2017/00902 transparent or translucent

Abstract

A radiolucent bone drill and/or impact drill is provided, which includes a first portion connected to a second portion. The first portion defines a first axis and the second portion defines a second axis. The second axis is disposed at an angle relative to the first axis. A third portion is connected to the second portion. The third portion has a shaft extending therefrom. The shaft includes a distal end configured to engage bone. The bone drill may include a radiation protection guard mounted to the first portion. Specific drill bits, access sheaths/conduits/tube, curettes, and screwdriver bits designed to be used with the devices are provided. The bone drill may be used to place an access sheath/conduit/tube/needle into a bone in a single step. Methods of use are also disclosed.

Claims

1. A bone drill comprising:

a first portion connected to a second portion, the first portion defining a first axis and the second portion defining a second axis, the second axis being disposed at an angle relative to the first axis; and

a third portion being connected to the second portion, the third portion having a shaft extending therefrom, the shaft including a distal end configured to engage bone.

2. A bone drill as recited in claim 1, further comprising radio opaque markers configured for alignment of the bone drill during a fluoroscopy procedure.

3. A bone drill as recited in claim 1, wherein the third portion is formed of the radiolucent material and the shaft is formed of radiolucent and radio opaque materials.

4. A bone drill as recited in claim 1, wherein the third portion includes a drilling assembly having a drill bit and a sheath of the shaft extending about the drill bit.

5. A bone drill as recited in claim 4, wherein the sheath is configured to rotate independent of the drill bit and subsequent to drilling of a hole to a partial depth by the drill bit.

6. A bone drill as recited in claim 1, wherein the shaft is configured to rotate relative to the third portion.

7. A bone drill as recited in claim 4, wherein the sheath is configured to rotate in an oscillating configuration such that the distal end rotates in a clockwise direction and a counterclockwise direction.

8. A bone drill as recited in claim 1, wherein the shaft is configured for axial movement relative to the third portion.

9. A bone drill as recited in claim 8, wherein the axial movement is spring driven to facilitate an impact engagement of the distal end and the bone.

10. A bone drill as recited in claim 1, wherein the third portion defines a third axis, the third axis being disposed at an angular orientation relative to the second axis.

17. A bone drill as recited in claim 1, further comprising a radiation protection guard mounted to the first portion.

22. A bone drill as recited in claim 1, wherein the angular orientation is in a range of 0 to 45 degrees.

23. A bone drill as recited in claim 10, wherein the third axis is disposed at an angular orientation relative to the second axis in a range of 0 to 45 degrees.

24. A bone drill as recited in claim 4, wherein the sheath rotates at a first speed and the drill bit rotates at a second speed.

25. A bone drill as recited in claim 4, further comprising a brake configured to control rotation of the sheath.

26. A bone drill as recited in claim 4, wherein the sheath includes external threads that are configured to control feed rate of the drill bit.

27. A bone drill as recited in claim 26, wherein the sheath includes a radially extending stop.

28. A bone drill as recited in claim 4, wherein the drill bit has an outer drill bit and an inner drill bit.

29. A bone drill as recited in claim 4, wherein the outer drill bit is removable from the sheath for implanting with bone.

30. A bone drill as recited in claim 1, wherein the distal end of the shaft includes a plurality of cutting tines.

31. A bone drill as recited in claim 1, wherein the distal end of the shaft includes a plurality of cutting tines, which are movable relative to the distal end of the shaft.

33. A bone drill as recited in claim 4, wherein the components of the drilling assembly independently rotate at variable speeds.

34. A bone drill as recited in claim 4, wherein the components of the drilling assembly independently axially movable.

11. A method for treating a vertebral body, the method comprising the steps of:

providing a bone drill, the bone drill comprising;

a first portion connected to a second portion, the first portion defining a first axis and the second portion defining a second axis, the second axis being disposed at an angle relative to the first axis, and

a third portion being connected to the second portion, the third portion having a shaft extending therefrom, the shaft including a distal end configured to engage bone, wherein the third portion includes a drilling assembly having a drill bit and a sheath of the shaft extending about the drill bit, the third portion further including radio-opaque markers disposed in a configuration to facilitate alignment of the sheath with bone of the vertebral body;

exposing an area including the bone drill and the bone to radiation to facilitate alignment, via the radio-opaque markers, of the sheath with the bone while providing radiation protection for a user by maintaining the second axis at the angular orientation relative to the first axis, thus increasing the distance of the user from the primary radiation source and scatter radiation from the patient;

engaging the distal end of the shaft with the bone;

rotating the drill bit and engaging the drill bit with the bone to create a cavity in the bone;

driving the sheath into engagement with the bone to further define the cavity in the bone; and

treating the bone.

12. A method for treating a vertebral body as recited in claim 11, wherein the step of treating includes treating vertebral compression fractures.

13. A method for treating a vertebral body as recited in claim 11, wherein the step of treating includes treating sacral fractures.

14. A method for treating a vertebral body as recited in claim 11, wherein the step of treating includes treating lytic tumor deposits in the bone.

15. A method for treating a vertebral body as recited in claim 11, further comprising the step of providing access for bone biopsies and bone infusions using imaging guidance.

16. A method for treating a vertebral body as recited in claim 11, further comprising the step of providing a drill driven screwdriver for use with imaging guidance.

32. A method for treating a vertebral body as recited in claim 11, wherein the steps of engaging, rotating and driving are performed simultaneously.

18. A bone drill configured for treating bone of a vertebral body, the drill comprising:

a handle connected to a drive housing, the drive housing being connected to a head portion, the head portion including a shaft extending therefrom,

the shaft including a drill bit and a sheath disposed about the drill bit,

the shaft being coupled to a motor disposed with the drive housing via gearing such that the motor rotates the drill bit and the sheath.

19. A bone drill configured for treating bone of a vertebral body as recited in claim 18, wherein the handle defines a first axis and the drive housing defines a second axis, the second axis being disposed at an angular orientation relative to the first axis.

20. A bone drill configured for treating bone of a vertebral body as recited in claim 18, wherein the head portion defines a third axis, the third axis being disposed at an angular orientation relative to the second axis.

21. A bone drill configured for treating bone of a vertebral body as recited in claim 18, wherein the head portion includes radio opaque markers disposed in a configuration to facilitate alignment of the shaft during a fluoroscopy procedure.