Microsurgical Cassette Calibration Data Encoding
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Solution Overview
Problem
Communicating accurate calibration data for microsurgical cassettes is challenging due to the need for precise coefficients or data points, especially for nonlinear calibration curves, which is cumbersome and impractical with limited data spaces like a single linear barcode.
Innovation Solution
Selecting specific calibration points that are least susceptible to minor changes and using predictor calibration points to encode corrections, allowing for accurate reconstruction of the calibration curve within a compact barcode format.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If polynomial coefficients are used to model the calibration curve, then the calibration accuracy is improved, but the data size required to communicate the calibration information increases
Solution Approach 1:
The patent extracts only the most critical calibration data points needed to reconstruct the calibration curve, rather than transmitting complete polynomial coefficients. By selecting specific calibration points that capture the essential characteristics of the nonlinear curve, the system achieves adequate calibration accuracy with significantly reduced data transmission requirements.
Solution Approach 2:
The patent uses a partial approach by transmitting only a subset of calibration information (selected data points) rather than the complete polynomial model. This partial transmission is sufficient for reconstructing the calibration curve with acceptable accuracy, trading off some precision for substantial data size reduction that enables barcode encoding.
2Measurement precision
If multiple data points are transmitted to accurately represent a nonlinear calibration curve, then the calibration accuracy is improved, but the complexity of data communication increases
Solution Approach 1:
The patent segments the calibration curve information into discrete, selectable data points rather than transmitting the complete continuous curve or polynomial coefficients. This segmentation allows the system to communicate calibration information in a simplified, structured format that reduces communication complexity while maintaining essential accuracy.
Solution Approach 2:
The patent changes the representation parameters of the calibration data from polynomial coefficients to selected calibration points. This parameter transformation simplifies the data structure and communication protocol, making the system more manageable while preserving the ability to accurately represent nonlinear calibration curves.
3Ease of operation
If a single barcode is used to store calibration data, then the ease of operation is improved, but the data capacity is limited
Solution Approach 1:
The patent extracts only the essential calibration data points that can be accommodated within the limited capacity of a single barcode. By identifying and transmitting only the most critical calibration information, the system achieves ease of operation through barcode scanning while working within the strict data capacity constraints of the barcode format.
Solution Approach 2:
The patent transmits a partial set of calibration data points that fit within the barcode capacity rather than attempting to store complete calibration information. This partial transmission is sufficient for practical calibration purposes, enabling easy barcode-based communication while accepting the data capacity limitations of the medium.
Data Source
AI summary
A system and method for generating a calibration data curve, including communicating known calibration data for a microsurgical cassette to a surgical console with which the cassette will be used.