Surgical Drill Non-Cutting Protection Tip for Spinal Tissue Safety
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Solution Overview
Problem
In spinal surgery, existing surgical drills lack effective protection for intraspinal tissues, risking injury to nerves and the dura during bone removal procedures, which is critical for accessing the spinal canal.
Innovation Solution
A surgical drill with a non-cutting protection tip that is smaller in diameter than the cutting section, designed to guide and protect tissues by displacing them without injury, allowing for precise and safe bone removal by focusing on pressure and speed rather than centring and aiming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard surgical drill with a cutting tip is used to remove bone and access the spinal canal, then the drilling operation can be performed, but there is a high risk of injuring or severing the delicate intraspinal tissues (nerves, dura) due to lack of protection
Solution Approach 1:
A non-cutting protective tip is introduced as an intermediary element between the cutting section and the intraspinal tissues. This protective tip acts as a mediator that prevents direct contact between the cutting edges and delicate tissues like nerves and dura, thereby eliminating the risk of injury while allowing the drilling operation to proceed
Solution Approach 2:
The drill member is segmented into functionally distinct sections: a cutting section for bone removal and a separate non-cutting protective tip for tissue protection. This segmentation allows each section to perform its specific function optimally - the cutting section removes bone efficiently while the protective tip safeguards intraspinal structures
2Reliability
If extreme care is taken to avoid injuring intraspinal tissues during drilling, then tissue safety is improved, but the complexity and difficulty of the drilling operation increases due to the need for precise centring and aiming
Solution Approach 1:
The protective tip enables the drilling system to be self-guiding. Once the drill is initially positioned, the protective tip naturally centers itself within the drill site and guides the cutting section through the bone, eliminating the need for continuous manual adjustment and maintaining precision automatically throughout the drilling operation
3Reliability
If a protective tip is added to the surgical drill, then tissue protection is improved, but the device complexity increases due to the additional structural components
Solution Approach 1:
The protective tip and cutting section are merged into a single integrated drill member structure. The protective tip is directly attached to the cutting section, forming one unified component that performs both protection and cutting functions, thereby minimizing device complexity while maintaining tissue safety
Data Source
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AI summary
The present invention relates to a surgical drill (1, 1') including a drill member (10) having a cutting section (11, 11', 11'') for cutting bone, said cutting section being situated at a distal end of the drill member, whereas the drill member comprises a non-cutting protection tip (12) for protecting nerves, tissue or dura from being cut, the non-cutting protection tip being situated distally of the cutting section.