Pre-calibrated Reusable Instrument Marker Geometry
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional medical instruments require individual calibration and registration for each application, making them inefficient and cumbersome, especially in procedures involving multiple instruments for tasks like registering bones or bone contours.
Innovation Solution
A pre-calibrated reusable instrument with markers arranged on it, allowing a navigation system to identify the relative position of markers and deduce the functional elements in use, enabling the instrument to be used for multiple tasks without the need for repeated calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual calibration and registration is performed for each instrument, then measurement precision is maintained, but time consumption and procedural complexity increase
Solution Approach 1:
The instrument is pre-calibrated with a known marker arrangement geometry before use. The calibration data including marker positions and instrument geometry are stored in advance, eliminating the need for time-consuming on-site calibration procedures while maintaining measurement precision during actual surgical procedures
Solution Approach 2:
A single reusable instrument incorporates multiple functional elements (different tips or tools) that can be registered with the navigation system using the same pre-calibrated marker arrangement. This allows one instrument to perform multiple functions without requiring separate calibration for each functional element, reducing overall calibration time while maintaining accuracy
2Adaptability or versatility
If multiple separate instruments are used for different tasks, then functional versatility is achieved, but device complexity and procedural overhead increase
Solution Approach 1:
Multiple functional elements (different tips, tools, or instruments) are merged into a single reusable instrument body with a common marker arrangement. This consolidation reduces the number of separate instruments needed while maintaining the ability to perform multiple different surgical tasks, simplifying the overall procedural complexity
Solution Approach 2:
The reusable instrument is designed with universal functionality through multiple interchangeable or selectable functional elements, all registered using the same marker geometry. This allows one instrument to replace multiple specialized instruments, enhancing versatility while reducing device complexity and procedural overhead
Data Source
AI summary
A pre-calibrated reusable instrument includes an instrument holder and an instrument held by and movable with respect to the instrument holder. The instrument includes at least two functional elements and at least three markers, wherein at least one of the markers is movable with the instrument relative to the instrument holder such that a movement of the instrument produces a corresponding movement of the at least one marker.