Bacterial Endotoxin Reader Plates for Temperature and Optical Verification
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Solution Overview
Problem
Bacterial endotoxin readers require periodic verification of their optical reading and temperature measurement performance to ensure accurate results, as deviations can negatively affect reaction outcomes.
Innovation Solution
The use of temperature verification plates (TVP) and optical verification plates (OVP) that are removably mounted on the spindle of the bacterial endotoxin reader, equipped with temperature sensors and optical components, to verify the performance of temperature and optical systems, respectively, by comparing measurements and applying calibration factors as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature verification plates with optical indicators are used, then temperature measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent introduces an intermediary optical indicator system (LEDs or LCDs) on the verification plate that converts temperature sensor readings into optically readable binary representations. This intermediary allows the optical bench to read temperature data without requiring direct electronic sensor connection, resolving the contradiction by adding measurement capability while maintaining system modularity.
Solution Approach 2:
The patent replaces direct electronic temperature sensing with an optical reading system. The temperature sensor's electrical output is converted into an optical display (binary code via LEDs/LCDs) that can be read by the optical bench, substituting electronic signal transmission with optical signal transmission to leverage existing optical verification infrastructure.
2Reliability
If periodic verification is performed, then measurement reliability is improved, but loss of time increases
Solution Approach 1:
The verification plate is designed to be self-contained with an integrated temperature sensor and optical indicator system. The plate performs its own temperature measurement and displays the reading optically, allowing the reader to verify temperature accuracy without requiring external measurement equipment or complex setup procedures, thus reducing verification time while maintaining reliability.
Solution Approach 2:
The verification plate pre-loads temperature indicator values that correspond to known temperature points. During verification, the system simply compares the optical reading against the predetermined indicator values, eliminating the need for complex real-time temperature profiling or extended measurement periods, thereby reducing verification time while ensuring reliability.
3Measurement precision
If multiple verification parameters are checked, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The verification plate is designed as a universal platform that can verify multiple parameters (temperature and optical performance) using a single device. The optical indicator system can display different types of data (temperature readings, calibration status, error codes) through the same binary display mechanism, allowing multi-parameter verification without proportionally increasing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures accurate temperature and optical performance verification, thereby maintaining the integrity of bacterial endotoxin reaction results by correcting deviations in temperature and optical measurements.
Implementation Method 1
the temperature sensor being configured to measure a temperature of the body
Implementation Method 2
The temperature indicator is at least one light emitting diode (LED)
Implementation Method 3
the temperature indicator being readable by an optical bench of the reader
Data Source
AI summary
Verification plates for a bacterial endotoxin reader are provided, namely a temperature verification plate (TVP) and optical verification plate (OVP). The TVP has a body configured to be placed on a spindle of said reader and rotated by said spindle. The body has a temperature verification circuit with a temperature sensor and a temperature indicator. The temperature sensor is configured to measure a temperature of the body rotated by the spindle of the reader. The temperature indicator optically represents a value of the temperature measured by the temperature sensor. The temperature indicator is readable by an optical bench of the reader. The OVP has a body with a plurality of apertures located along a periphery that line up with an optical bench of the reader. Light produced by a light source of the reader can pass through the aperture and an intensity measured by a photodetector of the reader.