Stryker Ireland Limited

Styrker European Holdings I, LLC

Stryker European Holdings I LLC

Matteo Gubellini

Thomas Gerald Burke

Kevin Manley

Thomas Gerard Burke

A bur with features that minimize the application of substantially identical forces to the tissue against which the bur is applied. One of these features is the arrangement of the flutes so that one pair of flutes projects outwardly from the tip at an acute angle that is greater than the angle at which the other flutes project outwardly from tip. Consequently at the equator of the bur head, the location along the bur head where the bur head has a maximum diameter, the flutes define a perimeter that is non-circular in shape.

Surgical bur with a head having plural flutes, the flutes shaped so that, at the equator, the head has a shape that is not circular

A bur with features that minimize the application of substantially identical forces to the tissue against which the bur is applied. One of these features is a single groove located in a single one of the flutes. The groove is formed in the flute so as to be spaced proximally away from the distal end tip of the bur head. Another feature is that, adjacent the distal end tip of the bur head, the clearance surfaces of the flutes extend outwardly different distances from the longitudinal axis through the bur head. Another feature is that the flutes extend in a helical pattern around the bur head and the angle of the helix varies along the longitudinal axis of the bur head.

Surgical bur with plural flutes and a groove, the groove formed in a single one of the flutes and spaced away from the distal end of the bur

The bur includes a shaft to which a bur head is attached. The bur head includes a plurality of flutes. Each flute at least has a rake surface, a cam surface and a cutting edge. The rake surface extends radially outwardly from the longitudinal axis of the head. The rake surfaces define the flute cutting edge (). The associated cam surface curves away from the rake surface. One or more ribs extend radially outwardly from the cam surface.

Growing community of inventors

Glanmire, Ireland

Matteo Gubellini