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ENGLISH
Design Philosophy
Pneumatic compression is a clinically proven modality for minimizing the risks
associated with deep vein thrombosis .¹ The Aircast VenaFlow Elite System leverages
the same clinically proven technology as the existing VenaFlow offering, but is
presented in a low profile, light-weight design . VenaFlow Elite combines two proven
technologies, rapid inflation and graduated sequential compression, via our new
single tube Integrated Graduated Sequential Flow System (IGSF), to accelerate venous
velocity and enhance fibrinolysis . This unique combination makes VenaFlow the
only technology platform on the market that produces blood flows that mimic those
achieved through ambulation .² Additionally, VenaFlow Elite incorporates asymmetric
compression for the superior emptying of veins .³ The breathable and comfortable
VenaFlow Elite calf, foot and thigh cuffs enhance the patient experience, assist in
increasing compliance and are compatible with one universal pump .
Function
There are cuffs for the:
1) Foot
2) Thigh and
3) Calf
Either a single cuff on one leg or a cuff on each leg is allowed .
Once activated, the VenaFlow Elite system begins the compression cycle and inflates
the cuffs one leg at a time, alternating between the two legs every 30 seconds . First
the distal aircell inflates rapidly within less than 0 .5 seconds, then the proximal aircell
follows .
Foot Cuffs: The pressure peaks at approximately 1/- 10% .
Calf Cuffs:
The distal pressure peaks at approximately /-15%, and the
proximal pressure peaks at approximately /- 15% .
Thigh Cuffs: The distal pressure peaks at approximately /-15%, and the
proximal pressure peaks at approximately 63 mmHg +/- 15% .
These pressures then settle at 45mmHg ±10% and after 6 seconds, the cuff deflates .
In 54 seconds, the inflation cycle begins again . An icon will appear on the graphical
display signaling when the inflation cycle is in progress (See 'Pump Features' section) .
Pressure and the inflate/deflate cycle are automatic and an alarm will be activated if
the system is not functioning properly (See 'System Alarms' section) .
1. Labropoulos N, OH D.S, Golts, E, et al: Improved Venous Return By Elliptical, Sequential and Seamless Air-
cell Compression. Loyola University Medical Center, January 2003.
2. Whitelaw G, Oladipo O, Shah BP, et al: Evaluation of Pneumatic Compression Devices. Boston Orthopedics,
March 2001.
3. Kamm R: Unsteady Venous Blood Flow Resulting From Different Modes of External Compression Cambridge,
MIT, 1996