3/Description and Specifications. Ohio Medical Pediatric ISU, ISU

3/Description and Specifications

3.1 Description

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WARNING: Do not use this device in the presence of flammable anesthetics. Static charges may not dissipate and possible explosion hazard exists in the presence of these agents.

The ISU is a dual purpose vacuum regulator which provides either intermittent or continuous suction. It can be used for NG (intermittent) or pharyngeal/tracheal

(continuous) suctioning throughout the hospital.

On the Pediatric ISU, the maximum vacuum limit is factory present to 135 mmHg (18.0 kPa) and the limit may be adjusted between 80 and 150 mmHg (10.7 and

20.0 kPa). The low gauge and the baby icon on the cover distinguish it from the standard ISU.

Each unit contains a regulator module to regulate and adjust suction, a vacuum gauge which indicates suction supplied, a patented Unilogic Module to silently switch suction on and off, and timing valves which select and adjust the length of the on and off cycles.

In use, the vacuum source is connected through the regulator module which functions as an automatic valve.

Rotating the suction control knob adjusts the position of the regulator module and selects a predetermined level of suction.

During use, as the flow requirement increases, the valve automatically opens to maintain suction at the preset level. Conversely, when the flow requirement decreases, the valve automatically closes to maintain suction at the pre-set level. The same mechanism compensates for changes in supply vacuum to automatically maintain the pre-set suction level.

1. Suction Control Knob - Allows easy adjustment of suction to the patient.

2. Mode Selector Knob - Allows quick and easy mode changes.

Note: In the text of this manual, the international graphic symbol for the intermittent mode normally written as:

|

O

|

O

| will be written as |O|O|.

a. |O|O| (INTER) - Suction is intermittent (cycles on and off) and the suction level can be adjusted with the suction control knob.

When used as an Intermittent Suction Unit, both the “On” and “Off” timing cycles are independently adjustable within a range of 3 to 30 seconds. These are pre-set at the factory at a supply vacuum of 500 mmHg (66.7 kPa) to provide approximately 15 seconds “On” and 8 seconds “Off” for the ISU. If the supply vacuum is different, the timing cycles will vary.

Adjustment procedures are outlined in the

Operations section of this manual (Section 8.6

Timing Cycle Adjustment).

b. O (OFF) - No suction is supplied to the patient.

c. | (CONT) - Suction is continuous and can be adjusted with the suction control knob.

3. Vacuum Gauge - The suction level to the patient is displayed during use.

Vacuum

Gauge

Mode

Selector

Knob

Adapter

Port

Suction

Control

Knob

Fitting Port

6700-0082-000 (Rev.4) 10/2012 7