Surgical drill bit having an identification feature
AssigneeStryker Corporation
InventorsSteven J. Carusillo, Rahul Sharma, Brendan Schneider, Trevor Jonathan Lambert
Life of this patent
Estimating the term…
Abstract
A surgical drill bit assembly for use on a surgical drill. The surgical drill bit assembly includes a shank extending between a proximal end and a distal end along an axis. The surgical drill bit assembly also includes a cutting tip portion adjacent to the distal end of the shank. The surgical drill bit assembly also includes a sleeve disposed about at least a portion of the shank. The sleeve includes a non-magnetic material and an identification feature for identifying a configuration of the cutting tip portion. The identification feature includes a magnetic material. The magnetic material is dispersed in the non-magnetic material.
Claims16
A surgical drill bit for use on a surgical drill, the surgical drill bit comprising:
- a shank extending between a proximal end and a distal end along an axis;
- a cutting tip portion adjacent to the distal end of the shank;
- a sleeve disposed about at least a portion of the shank, the sleeve comprising a non-magnetic material and an identification feature disposed about the shank for identifying a configuration of the cutting tip portion, the identification feature comprising a magnetic material dispersed in the non-magnetic material and configured for generating a magnetic field, the magnetic field being shaped asymmetrically about the axis of the shank, and wherein the magnetic material is configured to become at least partially demagnetized when heated to a temperature at or above 80 degrees Celsius.
The surgical drill bit of 1, wherein the sleeve is divided into a first quadrant, a second quadrant, a third quadrant, and a fourth quadrant about the axis, and wherein a magnetic field generated by the first quadrant is different from the second quadrant, the third quadrant, and/or the fourth quadrant in terms of size, strength, polarity, or combinations thereof.
A surgical drill bit for use on a surgical drill, the surgical drill bit comprising:
- a shank extending between a proximal end and a distal end along an axis;
- a cutting tip portion adjacent to the distal end of the shank;
- a sleeve disposed about at least a portion of the shank, the sleeve comprising a non-magnetic material having a glass transition temperature at or below 120 degrees Celsius, and the sleeve comprising an identification feature for identifying a configuration of the cutting tip portion, the identification feature comprising a magnetic material;
- wherein the magnetic material is uniformly dispersed in the non-magnetic material such that no portion of the sleeve is more heavily concentrated with magnetic material than other portions of the sleeve.
A surgical drill bit assembly for use on a surgical drill, the surgical drill bit assembly comprising:
- a shank extending between a proximal end and a distal end along an axis;
- a cutting tip portion adjacent to the distal end of the shank;
- and
- a sleeve disposed about at least a portion of the shank, the sleeve comprising a non-magnetic material;
- the sleeve comprising an identification feature for identifying a configuration of the cutting tip portion, the identification feature comprising a magnetic material, wherein the magnetic material is uniformly dispersed in the non-magnetic material such that no portion of the sleeve is more heavily concentrated with magnetic material than other portions of the sleeve.
Dependencies are inferred from the claim text.