高功率激光多普勒监测系统

#moorVMS-LDF1-HP

High power tissue blood flow and temperature monitoring, enabling measurements from deeper tissues

  • We have found Moor equipment to be extremely dependable and innovative.

    Dean L. Kellogg, Jr., MD, Ph.D
    University of Texas Health Science Center

  • In a nutshell, moorFLPI-2 is the most user-friendly system for studying cerebral blood flow regulation in rodents.

    Chia-Yi (Alex) Kuan, MD, PhD
    Emory University School of Medicine

  • Moor Instruments have consistently provided excellent help and support for my research.

    Kim Gooding, PhD
    University of Exeter Medical School

  • Laser Doppler Imager is a standard accurate method we now use in our cerebral blood flow and brain perfusion in our laboratory.

    Momoh A. Yakubu, PhD
    Texas Southern University

  • I expect to be using Moor Instrument’s technology for many years to come!

    Faisel Khan, PhD
    Ninewells Hospital & Medical School

  • It goes without saying that the company's imaging technology itself is superb!

    Gourav Banerjee
    Leeds Beckett University

  • We can't recommend Moor instruments highly enough. The technology is at the cutting edge and the support second to none.

    Paul Sumners, PhD
    London South Bank University

  • I cannot rate the company or the staff highly enough.

    Jim House, PhD
    University of Portsmouth

The moorVMS-LDF1-HP is optimised specifically to enable measurements to be taken from the tissue surface down to deeper vascular beds than is otherwise provided by conventional laser Doppler systems.

The higher power in combination with wider separation of transmitting and receiving fibres in the probe head enable a larger volume to be monitored and also reduces site to site variations. The system is easily used with the standard moorVMS-LDF monitors to provide a comparison between deeper and more superficial changes.

For soft tissue we recommend the VP1-HP design which is fixed to the tissue with double sided adhesive discs. For bone measurements or surgical applications the VP7BS-HP needle design can be held in place either in a burr hole or by hand.

In addition we now offer a solution to allow combined deeper blood flow with surface tissue oxygen and temperature measurements, the CP1T-HP skin probe

PC software (moorVMS-PC) is available to offer simple statistics (such as average LD blood flow, standard deviation, min, max etc) as well as more formal assessments of cardiac pulse wave amplitude for example, useful where cardiac synchronous pulsatility, as well as amplitude, are used as indicators of vitality (femoral head assessments).

以下产品可在线购买并可用于moorVMS-LDF1-HP


本节列出了对客户moorVMS-LDF1-HP常见问题的解答。 如果您的问题不在其中,请将问题电邮给我们。 我们将乐于帮助!


Q. What factors affect the penetration depth of a laser Doppler monitor?
A. There are several factors that affect the measurement depth of a laser Doppler monitor. The wavelength of the laser, power of the laser and separation of the fibres are all important. The design of the moorVMS-LDF1-HP uses a higher laser power and an exceptionally wide fibre separation to offer exceptional penetration.

Q. Is the moorVMS-LDF1-HP safe in normal use?
A. Yes. We take laser safety extremely seriously and all the safety equipment and training is provided to ensure correct use is observed at all times.

很多参考文献都引用了我们的激光多普勒监测仪。 以下例举一小部分。 若您对某个领域有兴趣请与我们联系。


Notzli HP, Siebenrock KA, Hempfi ng A, Ramseier LE, Ganz R.
Perfusion of the femoral head during surgical dislocation of the hip. Monitoring by laser Doppler flowmetry
J Bone Joint Surg Br. 2002 Mar;84(2):300-4

Bøgehøj M, Emmeluth C and Overgaard S.
Blood flow and microdialysis in the human femoral head.
Acta Orthopaedica 2007; 78 (1): 56–62

Clough G, Chipperfi eld A, Byrne C, Frits de Mul, Gush R.
Evaluation of a new high power, wide separation laser Doppler probe: potential measurement of deeper tissue blood flow.
Microvascular research, in press 2009

Moor Instruments致力于新产品的不断开发。 我们保留更改规格的权利,恕不另行通知。


OPTICS

Laser Safety Classification
Class 3R per IEC 60825-1:2014
Output power 20mW max.
Wavelength 785nm ± 10nm
Angular spread of laser light from probe tip 26°
All specifications include cumulative measured uncertainties and expected increases in values after manufacture.

PERFUSION MEASUREMENTS

FLUX
Accuracy: ± 10%, relative to Moor Instruments ‘standard’ moorVMS-LDF1-HP
Precision: ± 3% of measurement value
Range: 0-1000 PU

CONC
Accuracy: ± 10%
Precision: ± 5% of measurement value
Range: 0-1000AU

DC
Accuracy: ± 10%
Precision: ± 3%
Range: 0-1000AU

TEMPERATURE MEASUREMENT

Range 5-50°C
Resolution 0.1°C, accuracy ± 0.3°C

SIGNAL PROCESSING

Bandwidth: high pass 20Hz
Low pass selectable 3KHz*, 15KHz, 22KHz*
Output time constants: 0.1s, 0.5s, 1.0s, 3.0s and unfiltered
Automatic gain control and zeroing

*Feature only available whilst using the moorVMS-PC Windows™ software

OUTPUTS

Digital LCD screen display
40Hz maximum data rate
0-1000 arbitrary perfusion units
USB interface for connection to PC
2 analogue outputs per channel, BNC sockets 0-5v

INTERNAL SOFTWARE FEATURES

Flash memory programmable from PC
Output scale adjustment
Filter bandwidth selection

GENERAL

Universal voltage switch-mode power supply range 100-230v at 30VA, 50 to 60 Hz
Dimensions W H D mm
moorVMS-LDF1-HP 235 x 60 x 200
Weight kgs
moorVMS-LDF1-HP 1.4
Mode of operation: continuous.

STORAGE AND TRANSPORT CONDITIONS

Temperature 0-45°C
Humidity 0-80% RH
Atmospheric pressure 500-1060hPa
Type of protection against electric shock – Class 1
Degree of protection against electric shock – Type BF
Degree of protection against ingress of liquid – IPXO (not protected)
Degree of protection against flammable anaesthetics – equipment not suitable for use in the presence of a flammable anaesthetic mixture with air or with nitrous oxide.

Moor Instruments生产多种探头,旨在帮助用户测量各种组织的流量。 我们将乐于为您的特定应用提供建议,也希望以下说明能有帮助。


The following is a list of recognised probes for use with the moorVMS-LDF1-HP.