Transcorporeal Spinal Decompression via Trajectory Control Sleeve
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Solution Overview
Problem
Current spinal surgery methods, such as vertebral fusion and artificial disc replacement, are invasive, lead to long recovery times, and risk adjacent segment degeneration, with challenges in preserving natural motion and minimizing injury to the vertebral artery and dura mater during transcorporeal decompression procedures.
Innovation Solution
A system and method for forming and repairing a transcorporeal access channel through a vertebral body using a bone cutting tool guided by a trajectory control sleeve, allowing precise access and implantation of a biocompatible bone repair device to restore structural integrity while minimizing tissue damage and promoting bone growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If vertebral fusion is performed to stabilize the spine, then structural stability is improved, but adjacent segment degeneration increases and natural motion is lost
Solution Approach 1:
The procedure segments the decompression access from the fusion construct by creating a separate transcorporeal channel through the vertebral body, allowing decompression without requiring extensive fusion. The channel provides a dedicated pathway for instrument insertion and pathology removal while preserving motion at the vertebral levels.
Solution Approach 2:
The invention extracts the decompression function from the fusion procedure by creating a separate access channel that allows direct removal of compressive pathology (disc, bone, or soft tissue) without requiring the vertebrae to be fused. This separation eliminates the need for rigid stabilization and preserves natural spinal motion.
2Reliability
If extensive tissue removal is performed to access compressing pathology, then decompression is achieved, but injury to vertebral artery and dura mater increases
Solution Approach 1:
The transcorporeal channel acts as an intermediary structure that provides a controlled pathway through the vertebral body. This channel allows instruments to reach the compressing pathology without requiring extensive dissection through vulnerable areas, thereby reducing the risk of injury to the vertebral artery and dura mater while still achieving effective decompression.
Solution Approach 2:
The invention creates a third dimension for access by drilling a channel through the vertebral body (anterior-to-posterior direction) rather than approaching from the front or back. This transcorporeal dimension allows direct access to the pathology while avoiding the vulnerable structures that would be encountered in traditional anterior or posterior approaches.
3Ease of operation
If traditional anterior approach is used to remove compressing tissue, then access to pathology is achieved, but surgical complexity and recovery time increase
Solution Approach 1:
The invention extracts the decompression function from the fusion procedure by creating a separate access channel that allows direct removal of compressive pathology (disc, bone, or soft tissue) without requiring extensive fusion. This separation eliminates the need for rigid stabilization and preserves natural spinal motion.
Solution Approach 2:
The procedure segments the decompression access from the fusion construct by creating a separate transcorporeal channel through the vertebral body, allowing decompression without requiring extensive fusion. The channel provides a dedicated pathway for instrument insertion and pathology removal while preserving motion at the vertebral levels.
Data Source
AI summary
Bone plates for engaging bone members are described herein. The bone plates can receive one or more screws to secure the bone plates to an underlying bone member. The one or more screws can be inserted into bone plate holes that can be considered locking or non-locking. The bone plates described herein can have particular combinations of locking and/or non-locking holes. In addition, instruments such as distal and proximal aiming guides can accompany the bone plates to guide one or more screws into the bone plates.