22-10-2012, 10:26 AM
PRESSURE PULSATION IN ROLLER PUMP
PRESSURE PULSATION.ppt (Size: 1.59 MB / Downloads: 35)
INTRODUCTION ROLLER PUMP
What is roller pump ?
Construction
Working
Advantages
application
PRESSURE PULSATION IN ROLLER PUMP
Pressure pulsation.
Experimental setup.
Electric analogue model.
Working
phase in roller pump
Result
Experimental setup-
Roller pump contain following parts-
Tube
Two roller pump
Inlet outlet pressure sensor
Open air reservoir
Screw clamp
PHASE AND RESISTANCE IN ROLLER PUMP
Four phase
Engaging
disengaging
roller feed into roller housing
roller rotates without pushing the tube
BLOOD DAMAGE
What is blood damage in roller pump?
Response factor
Overcome blood damage -model
Tow model
Result
RESPONSIBLE FACTOR
Blood flow
Turbulence
Stagnation
Recirculation
High shear stresses
TWO TYPES OF MODEL-
The time dependent model
The computational method and
deforming mesh model
CONCLUSION
In roller pump minimize it’s limitation
Easily or safely use in cardiopulmonary bypass.