Blood FlowMeter

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 Doppler flow probe types and probe formats.

As a continuous laser Doppler blood flow monitor, the INL191 also serves as a microvascular blood flow detector for both bench and clinical research, giving a stable real-time signal wherever tissue perfusion needs to be tracked over time.

The Doppler flow probe can also directly stream real-time recordings to LabChart acquisition and analysis software (purchased separately) via USB digital output, using the laser Doppler monitor's 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 analog outputs that can feed a PowerLab data acquisition unit, making it a flexible doppler flow meter for multi-signal research setups. 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

• Temperature, O₂ Concentration (microelectrode)
• EEG via Bioamplifiers

Includes:

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

Accessories purchased separately:

• Standard Surface Probe
• Digit Probe
• Miniature Surface Probes (suturable and non-suturable)
• Standard Needle Probe
• Short Needle Probe
• Fine Needle Probe
• Bent Tip Needle Probe
• Adhesive Rings for Surface Probes
• Miniature Holders for Needle Probes
• Calibration Kit for INL191 Probes

Laser Flow Meter Integration with LabChart and PowerLab

Used as a laser flow meter within the LabChart ecosystem, the Blood FlowMeter records microvascular perfusion alongside electrophysiological signals, temperature, oxygen concentration, and hemodynamic parameters in a single synchronized data file. This removes the post-hoc alignment errors that arise when perfusion data is collected on a separate standalone laser flow meter and merged later with a different acquisition system.

The USB digital output streams perfusion data directly into LabChart at the instrument's native resolution, while the two analog BNC outputs let the same blood flow monitor feed a PowerLab simultaneously - useful where legacy analog signal chains are already in place. LabChart's built-in analysis modules, including cycle detection, spectral analysis, and event marking, are immediately available to perfusion traces with no additional configuration.