Hematology Analyzer Operator Verification and QC Feedback
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Solution Overview
Problem
Hematology analyzers face challenges in ensuring that operators are qualified and follow proper procedures, leading to inaccurate or failed quality control checks and increased costs due to improper handling of samples.
Innovation Solution
A system comprising a hematology analyzer and server that verifies operator qualifications and provides step-by-step instructions for sample handling, including quality control measurements, to ensure accurate and consistent results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the operator skips the mixing step for quality control samples, then the operation time is reduced, but the sample consistency changes making the sample unusable for future quality control checks
Solution Approach 1:
The system provides feedback to the operator by displaying instructions on the display device. When a quality control sample is inserted, the system displays specific instructions indicating that the sample must be mixed before measurement. This feedback mechanism ensures the operator understands the required procedure without needing to physically observe or remember the mixing step, thereby maintaining sample consistency while still allowing quick operation.
2Ease of operation
If the operator is not required to follow proper procedures, then the ease of operation is improved, but the measurement accuracy deteriorates
Solution Approach 1:
The system performs self-service by automatically providing procedural instructions to the operator through the display device. The analyzer itself guides the operator through the correct procedures for sample handling and quality control checks, eliminating the need for external training or supervision. This self-service approach maintains ease of operation while ensuring measurement accuracy through systematic guidance.
Solution Approach 2:
The system continuously provides feedback to the operator during operation. When an operator inserts a sample, the display shows specific instructions for that particular sample type and test. This real-time feedback ensures the operator follows correct procedures without needing prior training, thereby maintaining both ease of operation and measurement accuracy.
3Reliability
If quality control checks are performed frequently to ensure analyzer operation, then the reliability is improved, but the loss of substance increases due to sample wastage
Solution Approach 1:
The system performs preliminary action by providing instructions before the quality control measurement is taken. The display shows instructions indicating that the sample must be mixed before measurement. By ensuring the operator performs this preliminary mixing action, the system prevents measurement failures and subsequent sample wastage, thereby maintaining reliability while reducing substance loss.
Solution Approach 2:
The system provides feedback instructions to the operator before measurement occurs. When a quality control sample is inserted, the display shows specific instructions that must be followed. This feedback prevents procedural errors that would lead to sample wastage, allowing the system to perform reliable quality control checks without excessive sample consumption.
4Productivity
If patient blood samples are measured without proper treatment, then the productivity is improved, but the measurement precision deteriorates due to inaccurate results
Solution Approach 1:
The system provides feedback instructions to the operator when a patient blood sample is inserted. The display shows specific instructions indicating that the sample may need to be mixed or treated before measurement. This feedback ensures that necessary preparatory steps are performed quickly and correctly, maintaining high productivity while ensuring measurement precision through accurate sample preparation.
Data Source
AI summary
An analyzer for measuring a sample includes a display, measurement hardware configured to perform a quality control measurement on a vial containing a quality control (QC) sample, and a controller. The controller is in communication with the display and the measurement hardware and is configured to communicate, via the display, instructions to implement a QC measurement on a first vial containing a first QC sample. If a result of the QC measurement is within a pre-determined range the first vial passes the QC measurement. If the result of the QC measurement is not within the pre-determined range the first vial fails the QC measurement. If the first vial fails the QC measurement and if a number of times the first vial fails the QC measurement is less than a predetermined number, the controller is configured to communicate, via the display, instructions to repeat the QC measurement on the first vial.