Guide pin gauge
AssigneeLinvatec Corporation
InventorAndrew Kam
Life of this patent
Estimating the term…
Abstract
A guide pin gauge is described for use in measuring the thickness of an object at a particular location. The guide pin gauge includes a distal cutting head, a proximal shank having an outside diameter equivalent to an outside diameter of said distal cutting head, and a reduced diameter portion extending a length between the distal cutting head and the proximal shank. A proximal facing shoulder is provided at a transition between said distal cutting head and said reduced diameter portion. Markings are provided as a scale along said reduced diameter portion. The distal cutting head may be passed entirely through the hole, and displaced to a side such that a distal extent of the hole engages with the proximal facing shoulder. The markings may then be read to determine a distance to the distal extent of the hole.
Claims8
A guide pin gauge comprising:
- a distal cutting head;
- a proximal shank;
- a reduced diameter portion extending a length between and connecting the distal cutting head and the proximal shank;
- a proximal facing shoulder provided at a transition between said distal cutting head and said reduced diameter portion that is adapted to engage the distal extent of a hole;
- and
- markings provided as a scale on said reduced diameter portion, said markings indexed to be fixed at zero at the proximal facing shoulder and increasing toward the proximal shank to measure a distance proximally from the distal extent of the hole that is engaged by the proximal facing shoulder;
- wherein an outside diameter of said distal cutting head and an outside diameter of said proximal shank are equivalent.
A guide pin gauge comprising:
- a distal cutting head comprising fluted cutting surfaces extending proximally from a tip of the distal cutting head and terminating a distance distally from a proximal facing shoulder that is adapted to engage the distal extent of a hole, said fluted cutting surfaces reducing in depth as the flute extends proximally toward said proximal facing shoulder;
- a proximal shank;
- a reduced diameter portion extending a length between the distal cutting head and the proximal shank;
- said proximal facing shoulder provided at a transition between said distal cutting head and said reduced diameter portion, said proximal facing shoulder being one of (i) perpendicular to a longitudinal axis of said guide pin gauge and (ii) forming an acute angle with said reduced diameter portion;
- and
- markings provided as a scale along said reduced diameter portion, said markings indexed to be zero at the proximal facing shoulder and increasing toward the proximal shank to measure a distance proximally from the distal extent of the hole that is engaged by the proximal facing shoulder,
- wherein an outside diameter of said distal cutting head and an outside diameter of said proximal shank are equivalent.
Dependencies are inferred from the claim text.