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US 10,245,045 B2Granted
Resection instrument
AssigneeSmith & Nephew, Inc.
InventorPaul Alexander Torrie
Life of this patent
Estimating the term…
Abstract
The present invention concerns a surgical instrument. There is described a surgical instrument including a shaft having a handle towards a proximal end, a template towards a distal end, and resecting means for removing tissue. The template is shaped to complement the contours of a joint surface.
Claims42
A surgical instrument, comprising:
- a shaft having a proximal end, a distal end, and a longitudinal axis extending therebetween;
- a handle disposed towards the proximal end of the shaft;
- a template pivotally connected towards the distal end of the shaft, the template having:
- a proximal end, a distal end, and a heel portion disposed at the proximal end of the template;
- first and second opposing surfaces positioned between the proximal and distal ends and dimensioned to fit between first and second bones of a joint;
- and
- a burr for removing tissue, the burr being coupled to the proximal end of the template and positioned to face the second bone of the joint when positioned between the first and second bones of the joint, the burr configured to rotate about an axis of rotation that is parallel to the longitudinal axis of the shaft, wherein the burr has a predetermined orientation relative to the template,
- wherein the second surface of the template has a concave shape to complement a curvature of the second bone of the joint, and wherein the second surface of the template is operative to engage with a surface of the second bone whereby the burr is operative to only engage and remove material from portions of the second bone having a surface curvature deviating from a curved path defined by the template while the second surface of the template guides movement in at least a distal to proximal manner over the second bone surface.
5 more elements
A surgical instrument, comprising:
- a shaft having a proximal end, a distal end, and a longitudinal axis extending therebetween;
- a handle disposed towards the proximal end of the shaft;
- a template pivotally connected towards the distal end of the shaft, the template having:
- a proximal end, a distal end, and a heel portion disposed at the proximal end of the template;
- first and second opposing surfaces positioned between the proximal and distal ends and dimensioned to fit between first and second bones of a joint;
- and
- a burr for removing tissue, the burr being coupled to the proximal end of the template and open to the second surface, the burr configured to rotate about an axis of rotation that is parallel to the longitudinal axis of the shaft, wherein the burr has a predetermined orientation relative to the template,
- wherein the first surface of the template has a convex shape to complement curvature of the first bone of the joint;
- wherein the first surface of the template is operative to engage with a surface of the first bone whereby the burr is operative to only engage and remove material from the second bone having a surface curvature deviating from a curved path defined by the template while the first surface of the template guides movement of the template in at least a distal to proximal manner over the first bone surface.
6 more elements
Dependencies are inferred from the claim text.