Spike for bone axis digitizer device
AssigneeOrthosoft Ulc
InventorsYann DUBOIS, Joseph MADIER-VIGNEUX
Life of this patent
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Abstract
A spike for a bone axis digitizer device may include a leading member having a pointy end configured for penetrating a bone or cartilage, the leading member defining a penetration axis. An anti-rotation feature may project laterally from a surface of the leading member. The spike has a first penetration segment and a second penetration segment, the first penetration segment including the pointy end and configured for leading a penetration of the spike in the bone or cartilage, and the second penetration segment having the at least one anti-rotation feature. A bone axis digitizer device with the spike may also be provided.
Claims20
A spike for a bone axis digitizer device comprising:
- a leading member having a pointy end configured for penetrating a bone or cartilage, the leading member defining a penetration axis;
- and
- at least one anti-rotation feature projecting laterally from a surface of the leading member;
- wherein the spike has a first penetration segment and a second penetration segment, the first penetration segment including the pointy end and configured for leading a penetration of the spike in the bone or cartilage, and the second penetration segment having the at least one anti-rotation feature.
A bone axis digitizer device comprising:
- a main arm configured to extend along a bone;
- a clamp at an end portion of the main arm, the clamp configured to clamp to an anatomical portion;
- an attachment member at another end portion of the main arm;
- and
- a spike projecting from the attachment member, the spike including a leading member having a pointy end configured for penetrating a bone or cartilage, the leading member defining a penetration axis, and at least one anti-rotation feature projecting laterally from a surface of the leading member, wherein the spike has a first penetration segment and a second penetration segment, the first penetration segment including the pointy end and configured for leading a penetration of the spike in the bone or cartilage, and the second penetration segment having the at least one anti-rotation feature;
- wherein the bone axis digitizer device is configured to receive an inertial sensor unit thereon.
Dependencies are inferred from the claim text.