Tissue monitoring > Blood perfusion monitoring
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OxyLab LDF Single channel laser Doppler tissue blood perfusion monitor |
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OxyFlo 2 or 4 channel laser Doppler tissue blood perfusion monitor |
OxyLab LDF and OxyFlo
Tissue blood perfusion is a primary factor in the transport of heat, drugs, oxygen, waste products and nutrients around the body and its measurement provides researchers with critical information in a number of clinical and research applications.
The latest generation systems incorporate new developments in Digital Signal Processing (DSP) and laser Doppler flowmetry providing a technologically advanced, yet simple to use for multi-channel monitoring, setting new standards for reliability and robustness.
Key Features
Whether your application requires the strikingly designed, multi-channel OxyFlo system or the single channel OxyLab LDF monitor, you will benefit from the following features:
- Real time blood perfusion measurement from up to 4 tissue sites simultaneously - for studying spatial as well as temporal perfusion heterogeneity and comparisons of pathological versus control tissue sites.
- OxyFlo systems include unique Artefact Rejection Technology (ART™) enabling blood perfusion measurements to be obtained in hitherto difficult or impossible dynamic ‘moving tissue’ applications.
- Multi-parameter monitoring. Both OxyFlo and OxyLab LDF systems can be combined with their oxygen monitoring counterparts, enabling the simultaneous measurement of ptO2, blood perfusion and temperature from the same tissue site using a single sensor.
- Extensive range of fiber optic sensors for perfusion monitoring from virtually any tissue type/site.
- Rapid response times for real-time monitoring, capable of resolving perfusion changes occurring over fractions of a second.
- Plug and play - No user input or configuration required.
- ‘Smart sensors’ - Automated sensor.
- Identification allows one-time sensor calibration.
- Unique autoclaveable sensors - Re-usable type sensors can be steam-sterilized.
Applications (Summary)
- tumor monitoring and angiogenesis
- Intra-cranial monitoring in stroke and brain injury
- Flap monitoring and plastic surgery
- Peripheral Vascular Disease
- Gastroenterology
- Diabetes research
- Dermatology
Specifications
| Blood Perfusion | Remittance | |
| Mode of operation | Laser-Doppler flowmetry | Intensity |
| No. of Channels | 1 (OxyLab); 2 or 4 (OxyFlo) | 1, 2 or 4 |
| Units | 0 - 9999 Blood Perfusion Units (BPU) | 0 - 100% Backscatter |
| Range | Up to 0.35 % moving scatterers by vol. | - |
| Stability of Reading | 1.5 % (OxyFlo); 5% (OxyLab) (motility standard) | 1 % |
| Acquisition Time | 0.09 s | 1 s |
| Response Time | <0.1 s | 1 s |
| Input Sampling Rate | 48 kHz (16 Bit) | 1 Hz (16 bit) |
| Output Update Rate | 750 Hz | 750 Hz |
| Output Range | 0 - 5 V (1 – 9999 BPU) | 0 - 5 V (0 - 100 %) |
| Output Resolution | 0.1 BPU (60 m V) | 0.002 % (60 m V) |
| Outputs | Analog 2 (OxyLab); 4 or 8 (OxyFlo)0 |
| Probe Identification | Automatic |
| Flow Calibration | Factory or user. Motility standard. |
| Laser Type | 830±10 nm temp. stabilized semiconductor |
| Laser Power | < 0.5 mW from probe |
| Laser Class | Class 1 (per 21 CFR 1040 and 1040-11) |
| Bandwidth | 22 kHz |
| Zeroing | Automatic |
| Display | 8-ch LED per channel (OxyFlo); 32-ch LED (OxyLab LDF ) |
| Dimensions | 135 x 410 x 320 mm (OxyFlo); 90 x 290 x 260 (OxyLab LDF) |
| Weight | 3 Kg (OxyFlo); 2 Kg (OxyLab LDF) |
| Power | 93 – 240 VAC; 47 - 63 Hz |
| Storage Temp. | 5°C - 50°C |
| Operating Temp. | 10°C - 35°C |
| Operating Humidity | 0 – 70% (non condensing) |
To order please contact: sales@discovtech.com
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