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www.laerdal.com

Laerdal Suction Unit

Reusable

User Guide

LSU Reusable Cat.no 78 00 00

Contents

3

Important Information 4

Intended Use 4

Battery Cautions 5

Overview 6

User Interface 7

Assembly - LSU Reusable Canister System 8

Use 9

Before Use Checklist 9

Use 9

After Use Checklist 10

Emptying 11

Cleaning 12

Clean the Cabinet 14

Device Test 15

Before Device Test Checklist 15

Device Test Indicators 15

Run the Test 16

Device Test - Evaluation 18

Evaluation of Device Test Results 18

Device Test - Leakages 19

Troubleshooting for Leakages 19

Battery 20

Charging 21

Replace the Battery 22

Service and Maintenance 23

Warranty 23

Troubleshooting 24

Specications 25

Accessories and Parts 31

Important Information

4

Intended Use

The Laerdal Suction Unit (LSU) is a portable, electrically powered, medical suction

equipment intended for field and transport use. It is intended for intermittent operation

to remove secretions, blood or vomit from a patient´s airway to allow ventilation.

Higher vacuum levels are generally selected for oropharyngeal suctioning, and lower

vacuum levels are usually selected for tracheal suctioning and the suctioning of children

and infants.

Read this User Guide carefully, and become thoroughly familiar with the operation and

maintenance of the LSU before using it. Read all Cautions and Warnings before using

the LSU.

Warnings and Cautions

A Warning states a condition, hazard, or unsafe practice that can result in serious personal

injury or death.

A Caution states a condition, hazard, or unsafe practice that can result in minor personal

injury or damage to the product.

Warnings

• The LSU is not suitable for use in the presence of flammable liquids or gases; there can be

a danger of explosion or fire.

• Not intended for use in MRI environments.

• Do not use the LSU under environmental conditions that are outside the ranges specified in

Specifications section. This can endanger safety and adversely affect operation of the device.

• Do not block the Exhaust Outlet during use. This will lead to reduced flow and can also

cause damage to the LSU.

• The LSU Reusable must not be used without the Aerosol Filter or the Float Ball.

• Disconnect the LSU from external power prior to cleaning. Use a minimum amount of liquid

to prevent any electrical shock hazard.

• Do not immerse the LSU or allow it to stand in water or other liquids. This might damage

the device, and cause electrical hazard.

Cautions

• Do not pump any cleaning solution or other liquids through the vacuum pump, i.e. through

the Vacuum Connector. This can damage the LSU.

• Use only parts and accessories supplied by Laerdal Medical or one of our authorised

distributors to ensure that the LSU operates satisfactorily.

• Overflow of suctioned material can damage the device. If overflow of liquid from the

Canister into the pump is suspected, contact your local Laerdal Medical representative.

• The LSU should only be used by persons trained in the use of medical suction equipment.

Important Information

5

Battery

Cautions

• Only use batteries approved by Laerdal Medical. Other batteries will have problems related

to the battery status indicator of the LSU, the battery operation time and safety.

• The LSU must be charged between each clinical use.

• To maintain satisfactory operation of the battery, placing the LSU on continuous charge

immediately after use and when not in use is recommended.

• If it is not possible to place the LSU on continuous charge when not in use, make sure the

battery is charged for a minimum of 4 hours at least once a month.

• The LSU must be placed on charge for a minimum of 4 hours to reach full battery capacity.

Fast charging gives approximately 80% battery capacity after 3 hours (for a new battery).

Repetitive 3 hour charging is not recommended.

• Fully charging the battery is recommended. Repetitive charging to a lower capacity level will

reduce battery life.

• Always fully charge the battery before storage.

• Do not store the battery when it is discharged.

• Do not store the LSU with a discharged battery.

• Laerdal recommends charging a spare battery every 6 months when stored in room

temperature at 25 °C (77 °F).

Overview

6

Vacuum Inlet

Aerosol Filter

Patient Inlet

User Interface

Canister Holder

Release Arm

Water

Bottle

Battery Door

Canister

Float Ball

Vacuum Seal

Patient

Suction Tubing

Holder for Water

Bottle/Patient

Suction Tubing.

Gasket

Canister Lid

Quick

Reference

Power Inlet

(on the back)

Angled

Connector

Suction Catheter

Adapter

Overview

7

User Interface

*Pressure conversion chart

mmHg 80 120 200 350 500

kPa 10.6 16.0 26.6 46.6 66.5

mBar 107 160 267 467 667

Test Button

Run the Device

Test program

Vacuum Indicator*

Actual vacuum level

during operation.

Each fully lit segment

represents 50 mmHg. If a

segment has a dim light,

this represents 25 mmHg

(e.g 125 mmHg is shown

by 2 fully lit and 1 dimly

lit segments).

Battery Status

Indicator

Operating Knob

On/Off switch

Vacuum selector

Failure Mode Indicator

Possible malfunction

detected

External Power Indicator

AC or DC power

connected

Power On Indicator

• Continuously lit - LSU is

switched on.

• Rapid flash (approx.

twice per second) -

Device Test in progress.

• Slow flash (approx.

once per second) -

Automatic power save

mode activated; Device

Test interrupted or

battery discharged.

Assembly - LSU Reusable Canister System

1 2

34

56

8

CLICK

A

BC

D

E

A

B

Use

1

2

9

Before Use Checklist

• Check that no parts are missing and that all parts are clean.

• To operate the LSU from an external power source, connect to either external AC

or DC power. To operate the LSU from the internal battery, check that the

battery is installed.

• Run Device Test.

• Check that the Patient Suction Tubing is securely connected to the Patient Inlet on

the Canister Lid; and the Aerosol Filter is securely fastened in the LSU and the lid.

• Check that a suction catheter is attached to the patient suction tube or suction

adapter. Do not use the suction tube or suction adapter without a suction catheter

attached.

Use

1. Unwind the Suction Tubing. Set the

Operating Knob to the required vacuum

level. The LSU will switch on and start to

operate. The Power On Indicator lights up

during operating.

2. When suction is complete, set the

Operating Knob to “0” to turn off.

Use

10

Caution

Even if the Operating Knob is set to “0”, voltage is present on some of the internal circuitry

when the LSU is connected to external power. Disconnect from the mains to fully remove

power.

Note

The LSU has an automatic power save mode which switches the pump motor off. While in

this mode, the Power On Indicator will flash slowly (approx. once per second). Power save

mode is activated when the Operating Knob is set to 200, 350 or 500+ mmHg and the

actual vacuum level has been continuously higher than 120 mmHg for more than 2 minutes.

To exit power save mode and revert to normal operation, set the Operating Knob to any other

position and then go back to required setting.

After Use Checklist

• Inspect all parts of the LSU for damage and excessive wear. Replace parts if necessary.

• Clean the LSU cabinet. Clean and disinfect reusable parts. See Cleaning section.

• Perform Device Test. See Device Test section.

• Place the LSU on charge.

The Aerosol Filter protects the LSU by preventing aerosols from entering the Pump Unit.

It is not intended for microbiological or for particle filtration. The Aerosol Filter is not

designed for decontamination. It is recommended that the Aerosol Filter be replaced

after each use or at least once every shift. If the LSU is used on patients in areas where

cross contamination is not an issue, the Aerosol Filter should be replaced at least once a

month. It is recommended always to have extra Aerosol Filters with the LSU in case one

has to be discarded. If the Aerosol Filter becomes wet, it should be replaced immediately

or as soon as possible after use.

Notes

• Check the filter after each use. If the filter is broken so liquid penetrates the membrane, the

pump will be contaminated. Contact Laerdal Service.

• The Float Ball (in the Canister lid) shuts off the vacuum if the Canister is full or the LSU tips

over. To restore the vacuum, remove the Angled Connector from the Vacuum Inlet. The Float

Ball will be released and the Angled Connector can be reattached.

Emptying

4

1 2

3

11

To prevent damage and keep the LSU in good working order; empty the Canister when

3/4 full. Overflow of suctioned material can damage the LSU.

When liquid reaches the top of the Canister, the LSU will stop suctioning. To continue

suctioning, empty the Canister and replace the filter.

Safely dispose of the contents of the

Canister according to local protocols.

Cleaning

Steam 100 °C

10-20 minutes

Steam 100 °C

10-20 minutes

Steam 100 °C

10-20 minutes

12

Decontaminating and disinfection of Reusable Canister

1. Dismantle

• Dismantle parts to be

decontaminated after each use.

• The Float Ball can be snapped out of

the lid.

2. Rinse

• Rinse all parts under cold running

water a total of 3 times.

• Immerse in warm water.

3. Clean

• Immerse all parts in hot water

(60-70 °C) containing a mild

detergent.

• Thoroughly clean all surfaces, use a

brush where possible.

• Rinse in warm water and allow to

dr y.

• Inspect all parts to be visibly clean

and dry.

• Note Thorough rinsing and cleaning

are very important steps prior to

disinfection.

3 X

Cleaning

13

4. Disinfection of Reusable Parts

Method Post-

treatment

Glutaraldehyde

Room temperature / concentration: 2%

60 minutes.

Steam 100 °C

10-20 minutes

Rinse all

parts warm

water. Allow

to dry.

Sodium Hypochlorite (not cleared for

use in the US) Room temperature /

concentration: 0.5%

20 minutes.

Steam 100 °C

10-20 minutes

Rinse all

parts warm

water. Allow

to dry.

Virkon

Room temperature / concentration: 1%

10 minutes.

Steam 100 °C

10-20 minutes

Rinse all

parts warm

water. Allow

to dry.

Steam autoclaving

Autoclave at max. 121 °C 60 minutes.

Steam 100 °C

10-20 minutes

Allow parts

to cool.

Disinfect

Virkon

Steam 121 °C

60 minutes

Disinfect

Sodium

Hypochlorite

Disinfect

Glutaraldehyde

Cleaning

14

Clean the Cabinet

Use a minimum amount of liquid to prevent any electrical shock hazard. Do not immerse

the LSU or allow it to stand in water or other liquids. This can damage the device, and

cause electrical shock resulting in injury to persons.

Use a cloth or sponge that is dampened with a mild detergent (hand dishwashing liquid

or similar) to clean the external surfaces of the LSU.

Use a detergent that is compatible with the materials listed in the Material Chart, and

follow the detergent manufacturer´s instructions.

Use a cloth or sponge dampened with water and wipe the surfaces again.

Dry the surfaces using a clean cloth or a paper towel.

Device Test

15

The Device Test is a user initiated test program to identify whether the LSU operates

satisfactorily or if it needs service. If the device is not in frequent use (i.e. less than once

a month), the Device Test should be performed both on a monthly basis and after each

Cleaning and Assembly process.

The program runs 4 different tests:

1. Occlusions - Blockages in the Suction System, including canister and tubing.

2. Vacuum efficacy - How much vacuum builds up in the Pump System within 3 seconds.

3. Maximum vacuum level - The maximum achievable vacuum level of the

LSU within 10 seconds.

4. Leakages - Air leakages in the Pump System, including canister and tubing.

Before Device Test Checklist:

• Ensure the LSU is correctly assembled and the Patient Suction Tubing is unwound.

• The Suction Catheter Adapter is removed from its holder (if applicable).

• Ensure the battery is not being charged (the device is not connected to

AC/DC power source).

Note

If you need to interrupt the test and revert to normal operation, turn the Operating Knob to

another position and then select the required setting.

Running Test 1

Testing for occlusions in

the Suction System

Running Test 3

Testing the maximum

achievable vacuum level

of the LSU

Running Test 2

Testing the vacuum build-up

efficacy of the Pump System

Running Test 4

Testing for air leakages in the

Pump System

Test result indication

Device Test Indicators

Device Test

1

3

2

4

1

3

2

4

16

Run the Test

1. Press and hold the Test Button

while turning the Operating Knob to

500+ mmHg.

2. Hold the Test Button in for 2 seconds.

3. The test will start immediately.

During test mode, the Power On

Indicator will flash rapidly.

4. When LED 2 lights up, block the Patient

Suction Tubing with your thumb.

Device Test

5

17

Notes

• If the tubing is not blocked within 2 minutes, the test will be interrupted. During

interrupted device test, the Power On Indicator will flash slowly.

• To restart the test, set the Operating Knob to “0” and start over again.

• To evaluate test results, do not tun off the LSU after running Device Test.

5. Keep the tubing blocked while LED 2, 3

and 4 light up. Release the tubing when LED

1 lights up again.

Device Test - Evaluation

18

Test No. Test result indication Action if test failed

Test 1 -

Occlusions • Check possible blockages (e.g. twisted tub-

ing, blocked filter, blocked filter in the liner)

and run the Device. Test again.

• If the High Efficiency Filtration Kit is installed

the pass limit is 150mmHg.

Test 2 – Vacuum

efficacy • Check Connectors, Tubes and Canister Lid

for leakage* or damage.

• Check exhaust outlet for occlusion and run

the Device Test again.

Test 3 – Maxi-

mum vacuum • Check Connectors, Tubes and Canister Lid

for leakage* or damage.

• Check exhaust outlet for occlusion and run

the Device Test again.

Test 4 - Leakages Check Connectors, Tubes and Canister Lid for

leakage* or damage and run the Device Test

again.

After evaluating the test results turn the Operating Knob to “0” to exit the Device Test.

Evaluation of Device Test Results

After the test is completed, the Vacuum Indicator

will display the results. Press the Test Button to scroll

through the results of each test to display the results.

Test Passed

<100 mmHg

Test Passed

>300 mmHg

Test Passed

>500 mmHg

Test Passed

>450 mmHg

Device Test - Leakages

1

3

2

19

Troubleshooting for Leakages

If the device test has failed, check whether the system is leaking. Run the Device Test

again blocking different parts in turn, until you find the failure.

Test by blocking the Pump System

Run the Device Test whilst blocking the outlet. If

the device passes the test, there are no leakages in

the Pump System.

Test by blocking the Vacuum Tube

Run the Device Test whilst blocking the Vacuum Tube.

If the device passes the test, there are no leakages in

the Tube.

Test by blocking the Patient Tubing Inlet

Run the Device Test whilst blocking the Patient Tubing

inlet on the Canister. If the device passes the test,

there are no leakages in the Canister.

Note

If the LSU does not pass one or more of the steps in this test after suggested actions are

taken, the device might need to be returned for service (see the Troubleshooting guide).

20

Battery

The LSU can be operated from the internal battery, and can be operated or charged

from one of the following external power sources:

AC mains when used with the AC Power Cord: 100-240 VAC (50/60 Hz).

DC mains when used with the DC Power Cord: 12-28 VDC.

The LSU battery can also be charged in an optional External Battery Charger. A Wall

Bracket to hold the LSU during operation and (optional) charging is available separately.

See Accessories and Parts for more information.

Battery Status Indicator

This Battery Status Indicator has 3 functions:

• During operation from internal battery: indicates approximate remaining battery

capacity.

• During charging: indicates approximate achieved battery capacity.

• During device testing: indicates which device test is in progress.

If no battery is installed, the battery status indicator will be fully lit for approx. 5 sec. until

it is turned off.

Note

During operation from internal battery and during charging, the displayed values must only

be used as indications.

Battery Capacity

Capacity Output

< 75% The LEDs will be lit sequentially

75 - 80% 3rd LEDs lit and 4th flashing

> 80% 4 LEDs lit

Immediately after turning the LSU on or switching from external power to internal

battery operation, all 4 LEDs will flash for 5 seconds before the remaining battery

capacity is displayed. Due to the nature of voltage based battery capacity measurement,

the battery status indication may differ from unit to unit. Each battery may vary in voltage

versus remaining capacity, thus allowing for variability in the reading. Other outside

variables such as temperature may also affect accuracy. The indicator is targeted to show

battery capacity as indicated below. The graph shows how the accuracy of the indication

can vary.

4 LEDs

3 LEDs

2 LEDs

1 LED

time

Caution

If the LSU or the NiMH battery has been stored at low temperatures (< 12 °C / < 54 °F),

the LSU may indicate lower remaining battery capacity than actual when first switched on.

This is due to the nature of NiMH batteries. The battery indicator may flash on one

LED, which normally indicates Battery Low. The LED may continue to flash until the LSU

temperature is above 12 °C / 54 °F and the LSU is switched off and on again. The low

battery indication in this instance is not a correct indication of the residual battery capacity.

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