Computer-based Laser Blood Flowmeter OMEGAFLO-Lab

The computer-based laser (tissue) blood flowmeter, OMEGAFLO-Lab, operates blood flow value in the computer with the original software.

The detection frequency range of the opt-electric converter is 120 KHz and it is about 5 times of that of the FLO-C1, and the operating frequency range can be set from 5 KHz to 120 KHz. Therefore, the OMEGAFLO-Lab can be used for both slow speed blood flow and fast speed blood flow.
The characteristic of the raw FFT(Fast Fourier Transform) signal is shown on the computer display, and the frequency range for operating blood flow value can be set. The OMEGAFLO-Lab uses a laser diode having the wavelength hardly affected by the absorption difference due to oxy Hb and deoxy Hb. The measurement depth is about 1 mm from tissue surface.
The OMEGAFLO-Lab is used for measuring brain, skin, internal organs by using conventional optical fiber probes.
The OMEGAFLO-Lab operates blood flow value, displays the value and the graph and saves the data simultaneously. Therefore, an additional data acquisition is not needed.
The FLO-Lab 2CH is used for the comparison between two points
The new software , FMV version, operates blood flow(FLOW), blood volume (MASS) and blood flow velocity(VEL.).

Features

  1. Frequency characteristic of blood flow can be confirmed by FFT display.
  2. Operating frequency range can be set according to the velocity of blood flow.
  3. Narrowing the operation frequency range for measuring slow speed blood flow reduces the noise in high frequency range.
  4. Avoiding underestimation of fast speed blood flow by confirming FFT display
  5. Measurement parameters can be set on the Setup function.
  6. Data is saved as Excel file.
  7. Auto zero null function calculates the electric noise from the frequency range and the detected light intensity
  8. FLOW value is output from the rear panel as analog voltage .
  9. The frequency range of FLO-Lab 2CH can be set separately to measure slow and fast speed blood flow.
  10. The new software, FMV version, operates the three hemodynamics parameters, FLOW, MASS and VEL.

Display on computer

Display on computer

FFT frequency characteristics of forearm skin and finger skin

The frequency range of the forearm skin is under 20 KHz, but that of the finger skin is about 100 KHz.
Operating frequency range can be set after confirming the frequency characteristics on the FFT display.

  • (A) Forearm skin(A) Forearm skin
  • (B) Finger skin(B) Finger skin

Specification

Measurement

Measurement
1. LDA-F1, LDA-F2 : Tissue blood flow (FLOW) 0 - 1000 (mL/min/100g corresponding)
2. LDA-FMV1, LDA-FMV2 : Tissue blood flow (FLOW) 0 - 1000 (mL/min/100g corresponding), Tissue blood volume (MASS) 0 - 2000, Blood velocity (VEL.) 0 - 100.0 (kHz)
Detection frequency range
0Hz - 120KHz
Operating frequency range
5KHz - 120KHz at 5KHz intervals
Plot interval
0.1, 0.2, 0.5, 1, 2, 5, 10 sec
FLOW display time
10 - 600 sec
Analog output
1. LDA-F1, LDA-F2 : FLOW : 0 - 10V DC
2. LDA-FMV1, LDA-FMV2 : FLOW : 0 - 10V DC, or VEL. : 0 - 10V
Measurement area
inside about 1 mm circle
Measurement depth
about 0.5mm - 1mm (depends on tissue)

Hardware

Computer-based signal processor
Power
100-240VAC,50/60Hz、about 15W
Size
about 380×40×250mm（W×H×D）
Weight
2.6Kg
OS
Windows 11
CPU
Intel Core or AMD Ryzen
Memory
over 8GB
Hard disk drive
over 500GB
DVD drive
Multi (internal or external)
A/D converter *
16 bit
Display size
15 inch
Resolution
1920×1080
Lser unit 1CH type
Laser
Wavelength : 780nm, semiconductor laser, CLASS1
Optical connector
FC
Fiber optic probe
100/140 μm、Silica GI
Interfase
USB
Power
5V DC, 0.4A
Size
about 155 × 58 × 202（W×H×D）
Weight
about 1kg
Lser unit 2CH type
Laser
Wavelength : 780nm, semiconductor laser, CLASS1
Optical connector
FC
Fiber optic probe
100/140 μm、Silica GI
Interfase
USB
Power
5V DC, 0.8A
Size
about 257 × 70 × 322（W×H×D）
Weight
about 1.5kg

Computer-based Laser Blood Flowmeter OMEGAFLO-Lab　 Summary / Spec | Theory | Price List