Principle Of Operation; Fluid Warming; Pressurized Fluid Delivery; Air Detection/Clamping - level 1 H-1200 115V Operator's Manual

S E C T I O N 6 • P r i n c i p l e o f O p e r a t i o n
S E C T I O N 6

Principle of Operation

The schematic illustration on the facing page depicts the Level 1
Flow Fluid Warmer's (Fluid Warmer) operations. The primary operations are
described below.

Fluid Warming

The Fluid Warmer utilizes a solution reservoir housed in a controller
unit. Recirculating solution is warmed and pumped through a heat
exchanger (a part of the Disposable Set). The solution is returned to
the reservoir for continuous recirculation and remains isolated from the
patient and from the I.V. fluid path. The on-board recirculating solution
is heated to a pre-set manufacturer's temperature set-point. The system
continuously monitors and controls the recirculating solution
temperature. The Fluid Warmer is designed to shut down and provide
audible and visual alarms in the event of an over-temperature condition.

Pressurized Fluid Delivery

The Fluid Warmer provides pressurized fluid delivery through the use of
an on-board compressor and two Pressure Chambers. The Pressure
Chambers pressurize the fluid bags for fast fluid delivery.

Air Detection/Clamping

The Air Detector/Clamp detects the presence of air in the Gas
Vent/Filter Assembly—a part of the Level 1
Administration Sets (Disposable Sets)—and clamps the patient line. An
ultrasonic signal continually passes through the fluid-filled Gas
Vent/Filter Assembly. As a bolus of air displaces the fluid in the Gas
Vent/Filter Assembly, the ultrasonic signal is broken and the clamp
closes, stopping the air before it enters the patient line. Audible and
visual alarms are activated, notifying the user that air has been detected
and fluid flow has been clamped off. Clearing the bolus of air and
restoring the fluid flow are quickly accomplished without disconnecting
from the patient.
® D/DI series Disposable
| Operator's Manual
® H-1200 Fast
19