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Bone fixation system

a bone fixation system and bone technology, applied in the field of bone fixation system, can solve the problems of increasing the number of steps involved in the process, producing undesirable conditions related to bone structure or bone function,

Inactive Publication Date: 2006-07-06
SPINAL GENERATIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is a bone fixation system that includes a bone screw with a passage and a drill that can be inserted through the passage to drill a pilot hole and screw the bone screw into the bone simultaneously. The system is self-drilling, meaning that the screw and drill can both drill the bone. The invention also includes a method for attaching a bone screw to multiple bone segments simultaneously. The technical effects of the invention include improved bone fixation and reduced surgery time."

Problems solved by technology

One challenge associated with the use of bone screws in bone fixation procedures is the number of steps involved in the process.
An additional challenge is minimizing the number of sharp or pointed objects that remain within a fixated region of a patient after surgery.
Such sharp or pointed objects may contribute to producing undesirable conditions related to bone structure or bone function.

Method used

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Examples

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Embodiment Construction

[0041] Referring to FIG. 1, in an exemplary embodiment of the invention, a bone fixation system includes a bone anchoring element or bone screw 10. Bone screw 10 may be used in conjunction with a driver, shown as drill 28, and holding device 24. Bone screw 10 includes a threaded portion 14 and a non-threaded upper portion, shown as post 18. A tip 12 is located at one end of bone screw 10 and a shoulder or flange 16 extends from the screw 10 between the post 18 and threaded portion 14. At the top of the post 18, an engagement mechanism for a screwdriver or drill, shown as recess 20, may be utilized.

[0042] Drill 28 includes a shaft 30 sized to fit within a passage 22 (see FIG. 3), a portion having cutting edges 32, and a drill tip 34. The bone screws 10 shown in various embodiments of the invention are cannulated to include passage 22 to accommodate drills such as drill 28. Accordingly, the drill 28 may function as a drill and as a driver for turning the screw. One advantage of the p...

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Abstract

A bone fixation system includes a bone screw having a longitudinal axis. A passage in the bone screw extends along the longitudinal axis and has a proximal opening at the proximal end of the bone screw and a distal opening at a distal end of the bone screw. A drill extends through the passage, a first end of the drill extending out the distal opening. The combination of the bone screw and the drill is self-drilling.

Description

[0001] This is a continuation-in-part of application Ser. No. 11 / 071,604, filed Mar. 3, 2005, which is a continuation-in-part of application Ser. No. 10 / 864,673, filed Jun. 9, 2004, both of which are incorporated herein by reference herein.FIELD OF THE INVENTION [0002] The present invention relates to instrumentation and methods used in the installation of bone screws, alone or in combination with other implantable orthopedic devices. In particular, the present invention relates to a bone fixation system and related surgical methods. BACKGROUND OF THE INVENTION [0003] The bones of the human skeletal system may be compromised in various ways, including by disease or defect, such as a tumor, or an injury, such as a bone fracture. The resulting defects or abnormalities in the skeletal system often require treatment to ensure proper functioning of the skeletal system and the avoidance of undue pain and discomfort. [0004] Various treatments exist for the treatment of bone fractures and / o...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/30A61B17/16A61B17/70A61B17/80A61B17/86
CPCA61B17/1671A61B17/7005A61B17/7007A61B17/701A61B17/7011A61B17/7032A61B17/7037A61B17/7041A61B17/8047A61B17/863A61B17/8685A61B17/704A61F2/4455A61F2002/30909
Inventor SWEENEY, PATRICK J.
Owner SPINAL GENERATIONS