Surgical bur with Anti-chatter flute geometry

a technology of flute geometry and surgical burs, which is applied in the field of surgical burs, can solve the problems of increased spatial gap between any two flutes and in-place tissue, burs that are prone to vibration, and burs that are subject to forced vibration, and achieve the effect of reducing, if not eliminating, chatter
US20100121365A1Inactive Publication Date: 2010-05-13STRYKER EURO OPERATIONS HLDG LLC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
STRYKER EURO OPERATIONS HLDG LLC
Publication Date
2010-05-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A surgical bur including a shaft with a bur head. A number of flutes are formed on the bur head. Each flute has a cutting edge. Chamfer surfaces form the front, distally directed faces of some of the burs. The flutes without chamfer surfaces having cutting edges emerge from the bur head at locations relatively close to the distal end tip of the head. The flutes over which the chamfer surfaces extend have cutting edges that start, extend proximally rearward, from locations that are, spaced proximal from the distal end tip.
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Description

RELATIONSHIP TO EARLIER FILED APPLICATIONS

[0001] This application is a divisional of U.S. patent application Ser. No. 11 / 943,303 filed 20 Nov. 2007 now ______. Application Ser. No. 11 / 943,303 is a continuation of PCT App. No. PCT / IB2006 / 002118, filed 17 Jul. 2006 which claims priority from U.S. Pat. App. No. 60 / 700,384 filed 19 Jul. 2005. Application Ser. No. 11 / 943,303 also claims priority from U.S. Pat. App. No. 60 / 866,735 filed 21 Nov. 2006. The contents of the priority applications are hereby explicitly incorporated herein by reference.BACKGROUND OF THE INVENTION

[0002] This invention is generally related to surgical burs. More particularly, this invention is related to a surgical bur with a bur head geometry that substantially reduces chatter when the bur is applied to a surgical site.BACKGROUND OF THE INVENTION

[0003] A tool used to perform a surgical procedure is the bur. A bur generally consists of a head formed from rigid material, typically metal, shaped to have a number of flu...

Claims

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