Medical Cutting Instrument Burr Guide Protector Design
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Solution Overview
Problem
Conventional medical cutting instruments with semi-open type burrs face challenges in providing a wide field of view for the surgical site, leading to potential inaccuracies and increased risk of cutting non-target tissues or nerves during minimally invasive surgeries.
Innovation Solution
A medical cutting instrument design featuring a rotating unit with a smaller diameter and a guide protector that surrounds the cutting unit, comprising a base and protection unit to ensure the surgeon's field of view while protecting non-cutting sites, with the base and protection unit designed to cover the rotating and cutting units effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large-diameter pipe-like protector is used to cover the guide rod and burr, then the protection of upper nerves and tissues is improved, but the field of view of the surgeon is blocked and the cutting site cannot be accurately confirmed
Solution Approach 1:
The protector is divided into multiple segments: a guide protector with first protection portion and second protection portion, and an additional burr protector. This segmentation allows each component to serve specific protective functions while minimizing obstruction of the surgical field of view.
Solution Approach 2:
Different portions of the protector are designed with different lengths and positions tailored to specific protective needs. The first protection portion covers the guide rod while the second protection portion covers the burr, with optimized lengths to provide protection only where necessary, preserving surgeon visibility.
2Ease of operation
If an open-type burr is used, then the cutting site accessibility is improved, but the risk of cutting non-target tissue or nerves increases when the cutting site is surrounded by tissue or nerves
Solution Approach 1:
The guide protector acts as an intermediary component between the open-type burr and the surrounding tissues/nerves. It provides a protective barrier that guides the cutting action while preventing accidental contact with non-target structures, combining the accessibility of open-type burrs with enhanced safety.
3Reliability
If a semi-open type burr with long protector is used, then the protection coverage is improved, but the field of view is blocked and surgical precision is reduced
Solution Approach 1:
The protector design allows for dynamic adjustment of protection coverage. The optimized lengths of the first and second protection portions provide adequate protection during cutting while maintaining visibility of the cutting site, enabling the surgeon to accurately confirm cutting precision in real-time.
Data Source
AI summary
The present invention provides a medical burr comprising: a rotating unit that is formed to have a smaller diameter than a guide that extends long forward in a medical cutting instrument, and rotates while extending inside the guide; and a cutting unit formed at the tip of the rotating unit, and further comprising a guide protector that surrounds the exposed portion of the burr.