Design Philosophy; Function; Specifications; Operating Conditions - Aircast VenaFlow Elite Operator's Manual

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

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 .5 seconds, then the proximal aircell
follows. The distal pressure peaks at approximately 78 mmhg ± 15% and the proximal
pressure peaks at approximately 68 mmhg ±15%. These pressures then settle at
45mmhg ±15% and after 6 seconds, the cuff deflates. In 54 seconds, the inflation cycle
begins again. An icon will appear on the graphical display signalling 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)
VenaFlow Elite Calf Cuff Pressure Curve
90
80
70
60
50
40
30
20
10
0
0 1 2
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
2
distal
proximal
3 4 5 6 7
Time [sec]

Specifications

Size: 7.6" x 8.5" x 4.6"
Weight: no battery: 4 lbs. with battery: 4.75 lbs.
Power input: 100-240~, 50-60 Hz, 200 – 500 mA
Cord: Hospital grade, 15 ft
Standards: IEC 60601-1, IEC 60601-1-2
TUV Device Classification: Class 1 BF
Inflation mode: rapid inflation and graduated, sequential compression
Bed hanger: accommodates up to 3.5"
Battery: Li-ion polymer 11.1V, 4250 mAh
Fuse: 250V 2A IEC FA 5X20MM
Storage
Storage/Transportation Temperature: 0º C (32º F) to 50º C (122º F).

Operating Conditions

Operating Temperatures: 0º C (32º F) to 50º C (122º F)
Relative Humidity: 30% to 70%
Atmospheric Pressure: 650 mmhg to 790 mmhg
Customer Care Contact Information
Service: 800-336-6569 ext 5568
Technical support: 800-336-6569 ext 5566
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