Offset Surgical Tool for Spinal Access
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Solution Overview
Problem
Current surgical tools face challenges in accessing anatomical sites while minimizing damage to surrounding tissues, particularly in spinal surgery, where instruments often require angled approaches to avoid critical structures like nerves and vessels, and existing tools lack visual confirmation of correct alignment during procedures.
Innovation Solution
A surgical tool with an offset region between the holding end and the working end, allowing the handle and distal end to be aligned along a common longitudinal axis, providing visual confirmation and avoiding anatomical structures, thus enabling safer and more precise access to spinal disc spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a straight surgical instrument is used with handle and working end in the same plane, then the instrument structure is simple, but it cannot avoid anatomical structures during the surgical approach
Solution Approach 1:
The patent introduces an offset dimension between the handle and working end of the instrument. The handle and working end are positioned in different planes, creating a three-dimensional configuration that allows the instrument to approach the surgical site from an optimized angle while keeping the handle in a comfortable position for the surgeon. This dimensional change enables avoidance of anatomical structures without complicating the overall instrument design.
2Object-affected harmful factors
If an angled approach is used to access the surgical site, then damage to surrounding tissues is reduced, but visual confirmation of correct alignment becomes difficult
Solution Approach 1:
The patent introduces alignment indicators as intermediary elements that mediate between the angled instrument configuration and the surgeon's need for visual confirmation. These indicators provide real-time feedback on the instrument's orientation and alignment with the surgical site, enabling the surgeon to maintain correct positioning even when the instrument is angled to avoid anatomical structures.
3Object-affected harmful factors
If the handle is positioned out of alignment with the working end, then anatomical structures are avoided, but control and alignment monitoring become difficult
Solution Approach 1:
The patent employs alignment indicators and visual feedback mechanisms as intermediaries that bridge the gap between the offset handle position and the working end. These indicators allow the surgeon to easily monitor and control the instrument's alignment despite the handle being positioned out of direct line with the working end, maintaining both tissue avoidance and operational ease.
Data Source
AI summary
A surgical tool for use in gaining access to the spine and including a part which is arranged to avoid other anatomical structures when the tool is in use; the tool comprising: a distal working end formation, a proximal end and intermediate said ends a formation displaced from a longitudinal axis and extending between said distal and proximal ends wherein the displaced formation is arranged to avoid said other anatomical structures anatomy during use of the working end of the tool.