Blood FlowMeter

Overview

A single-channel laser Doppler flowmeter used with a specialized fiber optic probe (purchased separately) to measure blood cell perfusion in the microvasculature of tissues and organs.

The Blood FlowMeter supports invasive and or non-invasive specialist disciplines with a range of probe types and probe formats.

The Doppler flow probe can also directly stream real-time recordings to LabChart acquisition and analysis software (purchased separately) via USB digital output and the Blood FlowMeter Device Enabler add-on software (supplied).

Plug and play: LabChart compatibility means that the blood flowmeter is automatically identified and all relevant configuration and channel settings are preloaded. Requires no further calibration procedures or configuration, so you can have confidence your system is properly configured every time.
Flexibility: Either use on its own direct with LabChart, or record other signals using a PowerLab for simultaneous measurements.

Alternatively, it has two outputs that provide analog data that can be recorded via a PowerLab data acquisition unit. Speak with your sales representative as to which connection option is best for your research.

Laser Doppler Blood FlowMeter Applications

Blood flow monitoring in peripheral vascular disorders
Cerebral perfusion monitoring in models of stroke and brain injury
Tumor perfusion monitoring
Angiogenesis
Blood flow (free flaps, pedicle flaps, wound healing, gastroenterology)

Complementary Measurements

Includes:

1 USB cable
2 BNC-BNC cables
Blood FlowMeter Device Enabler

Accessories purchased separately:

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Details and Tech Specs

Technical

Mode of Operation	Continuous Laser Doppler Flowmetry
Primary Measurement	Microvascular blood perfusion (Relative Red Blood Cell flux)
LDF Units	Relative units (0–5000 Blood Perfusion Units corresponding to 0-5 V output)
BSC Units	Relative units (0–100% corresponding to 0-5 V output)
Laser Type	Semiconductor laser diode (temperature stabilized)
Laser Classification	Class 1 Laser (as per 21 CFR 1040-10 and 1040-11)
Laser Wavelength	830 ± 10 nm
Laser Power	<0.5 mW from probe
Doppler Signal Bandwidth	16 kHz
Linearity	Up to 0.35% moving scatters by volume
Flow Response Time	<0.2s
Reading Stability	5% (measured with standard motility solution)
Zeroing	Automatic, controlled
Flux Calibration	Factory or user calibrated using a motility standard (concentration of latex spheres undergoing Brownian Motion)
Operating Temperature	5-35 °C
Operating Humidity	0-70% (non-condensing)
Weight	2.5 kg
Dimensions (W x H x D)	240mm x 70mm x 260mm
External Power Supply	Universal 100 to 240 V, 1.3A, 50/60 Hz