Occlusion Pressure Limits - CareFusion Alaris CC Guardrails 80033UND1-G Directions For Use Manual

Syringe pump

Table of Contents

Time to alarm following occlusion is achieved in less than 30 minutes at rates of 1 ml/h and higher by the appropriate selection of occlusion

levels.

Use of the dedicated pressure set is recommended. Its use permits the occlusion alarm pressure (mmHg) to be set accurately, with a small

operating margin between the alarm and normal infusion pressures. When using infusion pumps without a pressure set, line pressures are

estimated from pumping force. For this reason the occlusion alarm needs to be set with an operating margin of at least one level between

the alarm and normal infusion levels. The ability to set a small operating margin permits short time to alarm and small potential bolus

volumes to be achieved. Bolus volumes can be minimised as described in the Alarms and Warnings - Occlusion or by enabling the back

off general option.

Auto Setting :

Alari

s®

CC Syringe Pump

With IVAC

Pressure Set fitted, G30402M - (Standard disposable extension set)

The following graphs show the typical values for time to alarm and bolus volume that can be expected in the event of an occlusion when

the BD Plastipak 50 ml syringe is selected with a G30402M extension set with occlusion sensing disc.

Without IVAC

Pressure Set fitted, G40020B - (Standard disposable extension set)

The following graphs show the typical values for time to alarm and bolus volume that can be expected in the event of an occlusion when

the BD Plastipak 50 ml syringe is selected with a G40020B standard extension set.

No Pressure Set

Time To Alarm - 1.0 ml/h

typical

Occlusion Level

Tests at low alarm levels may alarm immediately - the force at these levels is commonly less than the friction in the syringe (with no additional fluid pressure).

The result is that the pressure relating to the low forces will be less than the nominal quoted occlusion pressure.

Bolus volume following occlusion will be minimised by the back off feature if enabled. The back off will reduce the line pressure by removing the volume

stored in the occluded line and deduct this volume from the volume infused. Back off will terminate if the pressure reaches the level recorded

pump when the infusion was last started, or a maximum back off volume has been withdrawn from the infusion line. It will also terminate if the volume

infused reaches 0.0ml, or a VTBI reaches the value at which it was set.