ZQ-BMD-A3 Portable Ultrasound Bone Densitometer | Accurate BMD Test Machine

Technical Specifications – Portable Ultrasound Bone Densitometer (BMD-A1 / BMD-A3)

The Portable Ultrasound Bone Densitometer is a non-invasive diagnostic imaging system designed for rapid bone mineral density (BMD) assessment. It uses advanced dual-transmit and dual-receive ultrasound technology to provide accurate osteoporosis screening and bone health evaluation in clinics, hospitals, and mobile medical environments.

Measurement Technology & Core System

This system is based on high-sensitivity ultrasound probe technology, incorporating advanced signal processing developed with American engineering standards to ensure superior accuracy and stability.

The device uses a dual-transmit & dual-receive ultrasound mode, combined with multi-directional autocorrelation technology to increase data density and improve measurement precision.

A built-in precision correction system minimizes environmental and system errors, ensuring stable and reliable diagnostic results.

Measurement Sites & Clinical Applications

The device measures bone density at two primary anatomical sites:

• Radius (forearm bone)

• Tibia (lower leg bone)

It is widely used for:

• Osteoporosis screening

• Bone health evaluation

• Pediatric bone development monitoring

• Elderly fracture risk assessment

• Clinical research applications

Key Clinical Parameters

The system provides comprehensive diagnostic indicators, including:

• SOS (Speed of Sound)

• T-Score

• Z-Score

• Bone Quality Index (BQI)

• Physiological Bone Age (PAB)

• Expected Osteoporosis Age (EOA)

• Relative Fracture Risk (RRF)

• Bone Strength Index

• BMI correlation analysis

Supports a total of 11 clinical evaluation parameters for full bone health assessment.

Measurement Performance & Accuracy

The system ensures high clinical precision with:

• Measurement accuracy: ≤ 0.3% (A1) / ≤ 0.25% (A3)

• Repeatability error: ≤ 0.3% (A1) / ≤ 0.25% (A3)

• Adult measurement time: < 15 seconds (3 cycles)

• Pediatric measurement time: < 5 seconds (A1) /      < 3 seconds (A3)

These performance standards make it suitable for high-volume clinical screening environments.

Intelligent Analysis & Database System

The device is equipped with a multi-population clinical database covering:

• Children (0–12 years)

• Teenagers (12–20 years)

• Adults (20–80 years)

• Elderly (80–100 years)

It supports global reference standards, including:

• Europe

• United States

• Asia

• China

• WHO reference data

Smart software functions include:

• Automatic report generation

• Medical record editing

• Case statistics analysis

• Bilingual reporting system

• Intelligent data correction

Real-Time Probe Guidance System

The device includes a real-time probe navigation system that displays:

• Axial angle positioning

• Horizontal alignment

• Direction adjustment guidance

This improves measurement accuracy and reduces operator error, especially in mobile diagnostic environments.

System Calibration & Quality Control

To ensure long-term accuracy, the system performs:

• Automatic power-on self-check

• Daily calibration process

• Temperature compensation calibration

• Dual-standard calibration using copper and Perspex      modules

This ensures consistent diagnostic performance across different environments and usage conditions.

Portability & Design Features

Designed for mobile medical use, the system is:

• Lightweight: approx. 3.3–4.3 kg depending on model

• Compact and portable design

• Easy to transport for field diagnostics

• Suitable for clinics, hospitals, and outreach screening      programs

The A3 model includes an embedded industrial control computer and 12.1-inch monitor for enhanced usability.

Model Comparison Overview (BMD-A1 vs BMD-A3)

Clinical Advantages Summary

• Non-invasive ultrasound bone density testing

• High-precision osteoporosis screening

• Fast measurement for high patient throughput

• Portable design for mobile medical use

• Multi-age clinical database support

• WHO-aligned diagnostic standards