[Circulating blood volume meter]

Area of Science:

• Biomedical Engineering
• Nuclear Medicine
• Physiology

Context:

• Accurate measurement of blood circulation volume is crucial for diagnosing and managing various medical conditions.
• Existing methods for determining blood volume may have limitations in accuracy, range, or invasiveness.
• The development of novel instrumentation is essential for advancing diagnostic capabilities in clinical settings.

Purpose:

• To introduce and describe a new instrument, the ur1-7, designed for measuring organismal blood volume.
• To detail the functional diagram, calibration principle, and operational procedures of the ur1-7 device.
• To evaluate the performance characteristics of the ur1-7, specifically its measurement range and accuracy.

Summary:

• The ur1-7 instrument utilizes the radioisotope dilution method for blood volume determination.
• It offers a measurement range of 1 to 9.9 liters, suitable for various physiological assessments.
• The device achieves a high level of precision, with an error margin not exceeding +/- 5%.

Impact:

• Provides a potentially more accurate and reliable method for assessing total blood volume.
• Facilitates improved clinical diagnostics and patient monitoring through precise physiological measurements.
• Contributes to the advancement of medical instrumentation for non-invasive or minimally invasive assessments.