Pedicle subtraction osteotomy guide
AssigneeStryker European Operations Holdings LLC
InventorsAmir Ali Sharifi-Mehr, Oliver Buchert, Bryan Weiner, M. Todd Miller, Steven F. Krause, Michael Chang
Life of this patent
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Abstract
A virtual surgical cutting guide may have first and second slots defining first and second axes respectively. The virtual surgical cutting guide may be positioned away from a vertebral body such that the first and second axes intersect at a distal point located in an interior of the vertebral body. The virtual surgical cutting guide may include the virtual surgical cutting guide with first and second cutting instruments. A method of performing a pedicle subtraction osteotomy may include the steps of placing the virtual surgical cutting guide over the first and second cutting instruments.
Claims20
A virtual surgical cutting guide for a spinal procedure comprising:
- a computer-assisted surgery system to generate a graphical representation of a surgical site;
- a haptic feedback control configured to be coupled with first and second cutting instruments, wherein the haptic feedback control defines a virtual boundary of the virtual surgical cutting guide, the virtual boundary comprising:
- a first slot extending from a proximal face to a distal face, the first slot having a first axis extending therethrough and defining a first channel to receive the first cutting instrument,
- a second slot extending from the proximal face to the distal face, the second slot having a second axis therethrough, being located opposite the first slot and defining a second channel to receive the second cutting instrument, wherein when the virtual surgical cutting guide is positioned away from a vertebral body such that the distal face is facing the vertebral body, the first and second channels are oriented such that the first and second axes extend distally towards each other and intersect at a distal point located in an interior of the vertebral body,
- wherein an operator can manually navigate the first and second cutting instruments placed within the first and second channels of the virtual surgical cutting guide.
A virtual surgical system for a spinal procedure comprising:
- a computer-assisted surgery system to generate a graphical representation of a surgical site;
- a haptic feedback control configured to be coupled with first and second cutting instruments, and
- a virtual surgical cutting guide defining a virtual boundary for the haptic feedback control, the virtual surgical cutting guide comprising:
- a first virtual boundary extending from a virtual proximal face to a virtual distal face, the first virtual boundary having a first axis extending therethrough and defining a first virtual channel to receive the first cutting instrument,
- a second virtual boundary extending from the virtual proximal face to the virtual distal face, the second virtual boundary having a second axis therethrough, the second virtual boundary being located opposite the first virtual boundary and defining a second virtual channel to receive the second cutting instrument, wherein when the virtual surgical cutting guide is positioned away from a vertebral body such that the distal face is facing the vertebral body, the first and second virtual channels are oriented such that the first and second axes extend distally towards each other and intersect at a distal point located in an interior of the vertebral body,
- wherein an operator can manually navigate the first and second cutting instruments and the virtual surgical cutting guide prevents movement of the first and second cutting instruments outside of the first and second virtual boundaries.
Dependencies are inferred from the claim text.