Maintenance; General Maintenance Procedures; Maximizing Charcoal Trap Efficiency - biodex PULMONEX II Operation Manual

MAINTENANCE

General Maintenance Procedures

1. Change the moisture absorber and the soda-lime (CO
color, efficiency is already greatly reduced. Absorber granules can also break down in size and the smaller granules and
powder clog the system, hinder patient air flow and damage system circuitry. Refillable cartridges (#132-555) are available.
2. Administer the Xenon as close to the patient as possible. Having the Xenon enter the patient near the face mask or mouth-
piece ensures a good bolus for single breath. We recommend using an injection adapter as close to the patient as possible.
Biodex carries an entire line of disposable Xenon circuits, some with injection adapters, with luer lock fittings, or injection
ports (see catalog). These options will allow the use of a Xenon gun, Xenon injection dispenser or syringe directly in line
with the patient's breathing passage.
3. Test the trap effluent on a regular basis. Keep a formal record according to NRC regulations. The easiest and most efficient
way to test the trap is by using the Xenon Trap Monitor (catalog #136-752). If you do not have a monitor, refer to the Leak
and Trap Test procedure explained later in this chapter.
4. Periodically remove the two breathing tubes from the back of the unit. Take one tube and connect it to both ports, forming a
C configuration. Place the handle in position #2 and press the Oxygen button until the bags are full and tight up against the
glass windows. They should remain full for approximately two minutes. If they sag or fail to blow up tight, the system may
have a leak. Refer to the Leak and Trap Test procedure as explained later in this manual.

Maximizing Charcoal Trap Efficiency

It is recommended that the Charcoal (catalog #132-319) be replaced once every 12 months. To maximize trap effectiveness fol-
low these guidelines:
1. After the patient has completed the washout, do not leave the system running for more than ten seconds.
2. Monitor the lower blower motor. It should be set at a maximum of 50-60 and only increased when a patient needs assis-
tance during washout.
3. Change the moisture absorber after every study!
NOTE: Do not leave the Pulmonex II in position #3 when not in use.
M
AINTENANCE
2
absorber) after every study. If you wait until the granules change
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