Doppler – Blood Flow Monitor


• The probe attaches directly to the target vessel.

• With audio and visual confirmation, the clinician and healthcare staff can easily interpret the signal level.

• Monitoring with the Doppler system is continuous, so loss of patency or thrombosis can be detected immediately.


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The Cook Doppler Monitoring System is designed to help detect early free flap failure.

Doppler offers the surgeon both visual and audible tracking of blood flow continuously, even during a procedure. When compared to clinical monitoring alone, it’s associated with significantly higher salvage rates.

This highly mobile device can be used in theatres and be moved with the patient into recovery and the ward, enabling constant monitoring of blood flow.

Video’s showing the Doppler in use can be found via Cook’s own website here

Product Portfolio
Implantable Probe







Extension Cable


Monitor Charger
Cable Verifier









Clinical Evidence

The literature shows that the use of the Cook Doppler can:

Decrease returns to surgery – Because the Doppler system offers objective monitoring at an earlier stage, it has been associated with a decrease in returns to surgery (1).

Offer higher salvage rates – When compared with clinical monitoring alone, Doppler offers higher salvage rates (2,3) a systematic review and meta-analysis showed an increase of between 57% and 73% with the Doppler (2).

Offer lower failure rates – It has also been shown that using an implantable Doppler may reduce the number of flap failures by at least 37% (2).

Further details are available our information sheet available here

Please contact us for more information info request.



1. Wax MK. The role of the implantable Doppler probe in free flap surgery. Laryngoscope. 2014;124(Suppl 1):S1-S12.

2. Chang TY, Lee YC, Lin YC, et al. Implantable Doppler probes for postoperatively monitoring free flaps: efficacy. A systematic review and meta-analysis. Plast Reconst Surg Glob Open. 2016;4(11):e1099.

3. Lenz Y, Gross R, Penna V, et al. Evaluation of the implantable Doppler probe for free flap monitoring in lower limb reconstruction. J Reconstr Microsurg. 2018;34(3):218-226.