Instrument Holder for Repeatable Sensor Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The positioning of sensors on subjects for medical or health-related measurements is critical for accurate biomarker detection, but existing methods struggle to ensure repeatable positioning, leading to inconsistencies in measurement comparability.
Innovation Solution
A system comprising an instrument holder that is secured to a subject, capable of holding an instrument such as a spectrophotometer in a repeatable position to within 2 mm in translation and 5 degrees in rotation, ensuring consistent measurement alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the instrument is removed from the subject and later placed on the subject again, then the instrument can be reused for multiple measurements, but the new position of the instrument may differ from the previous position, leading to inconsistent measurements
Solution Approach 1:
The patent applies preliminary action by pre-securing the instrument holder to the subject's body at a specific location before instrument removal. This predetermined positioning structure ensures that when the instrument is reattached, it returns to the same position with high repeatability (within 2mm translation and 5-degree rotation), thereby maintaining measurement comparability across multiple uses.
2Measurement precision
If the instrument is held securely on the subject, then measurement accuracy is improved, but the complexity of the positioning system increases
Solution Approach 1:
The patent applies segmentation by dividing the positioning system into two independent components: (1) an instrument holder that is secured to the subject's body, and (2) the instrument itself that attaches to the holder. This segmentation allows the holder to provide stable, repeatable positioning while keeping the instrument removable and replaceable, achieving measurement accuracy without excessive system complexity.
Data Source
AI summary
A system and method for positioning a sensor on a subject. In some embodiments, the system includes an instrument holder, the instrument holder being configured to be secured to a subject, and to hold an instrument temporarily.