Evaluation of Blood-Sampling Performance of Automatic Fingertip-Blood-Sampling System and Correlation Between...

Area of Science:

• Biomedical Engineering
• Medical Devices
• Diagnostic Technologies

Background:

• Accurate blood volume collection is crucial for diagnostics.
• Existing methods can be invasive or inconsistent.
• Novel automated systems are needed for improved blood sampling.

Purpose of the Study:

• Evaluate the performance of an automatic fingertip blood-sampling system with fingertip vessel-puncture function (FBS-FV).
• Examine the relationship between sampled blood volume and fingertip blood-vessel image features.

Main Methods:

• Conducted blood-sampling experiments with 18 participants.
• Utilized fingertip blood-vessel imaging for puncture site selection.
• Analyzed puncture accuracy, blood volume, and image features (V and C).
• Applied multiple regression to predict blood volume from image features.

Main Results:

• Achieved high puncture accuracy with deviation < 1 mm.
• Observed a 42% rate of exceeding the target blood volume (650 μL).
• Demonstrated predictive potential for blood volume using image features (R²=0.64 for high-volume, R²=0.41 for low-volume groups).

Conclusions:

• The FBS-FV offers precise puncture performance.
• Fingertip blood-vessel image features show potential for predicting blood volume.
• Optimization of compression control may enhance blood sampling consistency.