

Student name:
Ofir Agranat
Advisor name:
Dr. Sara Naftali
2015
---
2
Department:
Medical Engineering
Dynamic Simulator for Umbilical Flow Assessment
Using Doppler Ultrasound
4. System components
5. Conclusion
The GUI:
• Controls the flow in the
system with several
variables:
• Systolic pressure
• Diastolic pressure
• Duty cycle
• BPM
• UI - the flow as detected
by the Venturi sensor
The Model:
The umbilical cord model in its
fluid environment, consists of a
box filled with water, a lid with
a latex layer, a drainage, tube
connectors and a latex tube as
the UC model. The US probe
can be placed on the latex
layer to monitor the flow within
the UC model.
The US display:
The US Doppler window
displays the UC fluid flow
colored by velocities can
be compared with the
GUI values.
• The prototype system is able to produce a pulsatile
wave on an umbilical cord model in fluid environment
and can be detected with an US Doppler
spectrograph.
• The system required further adjustment and
adaptation for accuracy in the lab and to be operated
by an US physician for fine tuning and feedback.