Cairwave Model 7101 Service Manual Issue 7 Jan 2003

LFT5424 - AMENDMENT RECORD REVISION

CHANGE NOTE

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118/01 106/01

7

118/02

TECH. NOTE

pegtanC0 40-02

BRIEF DETAILS

SIGNATURE

DATE

Introduction of AIMS Pump and reformat Trinova 7101 chassis modification and rotorvalve assembly redesign. Added MSM4497 (Double Sided Tape) and a note to show the difference between MLD209 and SA7018.

Bob Miles Kye Wilson

July 02 Nov 02 Jan 03

Kye Wilson

POLICY STATEMENT Pegasus Ltd has a policy of continuous product improvement and reserves the right to change details presented in this Service Manual without notice.

Tel: +44 (0) 23 9278 4200 Fax:: +44 (0) 23 9278 4250 E-mail: [email protected] Web Site: www.pegasus-uk.com

LIST OF CONTENTS Section

Title

1.

SAFETY STATEMENT

2.

INTRODUCTION General System Description

3

SETTING UP/OPERATION Setting Up Replacement of Covers Operation Cardio Pulmonary Resuscitation Transport Mode Removal Alarms and Fault Finding

4.

CONSTRUCTION OF PRODUCT Major Elements of System Mattress Cushion Patient Management Unit Technical Details

5.

INFECTION CONTROL/CLEANING Infection Control Cleaning Guidelines

6.

EQUIPMENT MAINTENANCE General Patient Management Unit Mattress Cushion Service Mode

7.

TEST EQUIPMENT

8.

PARTS LIST Patient Management Unit Mattress Cushion

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SECTION 1 - SAFETY STATEMENT 1.1.

The TRINOVA Cushion and Mattress System must be used in accordance with the manufacturer’s instructions.

1.2.

The mains electricity supply within the building where the TRINOVA Cushion and Mattress System is to be used must comply with IEE Regulations.

1.3.

Only qualified personnel, trained or formally approved by Pegasus Limited may perform maintenance, modification or repair work on Pegasus systems.

1.4.

Unqualified personnel attempting to work on Pegasus systems risk serious injury to themselves and others, and possibly death by electrocution. Do not work, nor attempt to work on Pegasus systems unless you are properly qualified to do so.

1.5.

Pegasus systems are designed to comply with all relevant electrical safety, manufacturing and performance standards published by IS0, IEE & BSI.

1.6.

Materials used for cleaning procedures may be subject to COSHH regulations - manufacturers’ Instructions For Use must be followed at all times.

1.7

Materials used for maintenance and repair may be subject to COSHH regulations - manufacturers’ Instructions For Use must be followed at all times.

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SECTION 2 - INTRODUCTION 2.1

GENERAL

The TRINOVA Dynamic Cushion and Mattress System is suitable for patients showing any of the following characteristics: Assessed to be up to very high risk of pressure sore development. Require therapy to promote pressure sore healing. May have limited mobility but can be repositioned if necessary. Can sit out of bed for more than a few minutes. The TRINOVA System reduces skin surface pressure at frequent intervals. This encourages the blood flow necessary to maintain healthy tissue, thereby giving therapy and prevention from pressure sores in vulnerable patients. The mattress system offers a Step Down Mode which is a static, lower pressure mode to assist in the assessment of patients whose condition continues to improve. The system also offers comfort for the patient, firm side supports to facilitate bed/chair transfers and ease of use for the carer. Patients who are immobile and/or cannot be repositioned when necessary, are therefore at greater risk and can be nursed on the CAIRWAVE Therapy System. NOTE:

Optimal performance is, in part, dependent on attaining a good seated position (chair height and posture),

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2.2

SYSTEM DESCRIPTION

The TRINOVA Cushion and Mattress System consists of a multicell mattress, a cushion and a Patient Management Unit, together with associated pipework. Mattress The specially constructed two-tier mattress comprises a series of transverse cells, which are inflated and deflated in sequence. This creates a series of pressure waves which travel beneath the patient from foot to head. To support the patient there are three head end cells on both tiers and two longitudinal side cells that remain fully inflated at all times. The mattress replaces the normal bed mattress and is covered by a removal zipped cover, which protects the mattress from soiling, by body fluids. Cushion Support out of bed is provided by a specially constructed cushion, which has cells that are inflated and deflated in sequence. The cushion replaces the original chair cushion and is covered by a removal zipped cover, which protects the cushion from soiling. Patient Management Unit The Patient Management Unit (PMU), is microprocessor controlled, and supplies the air to inflate the mattress through an umbilical connected to the unit. The air pressure in the mattress is continuously monitored, and the system is completely self-regulating. Audio and visual alarms activate if a fault condition exists. An audio alarm sounds when the unit is switched off, or if the mains supply is disconnected. The PMU may be suspended on the footboard of the bed, or stood on the floor.

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SECTION 3 - SETTING UP/OPERATION

3.1

SETTING UP

Mattress and Patient Management Unit 1.

2.

Remove bed mattress

Place system mattress on bed - ensure there are no sharp objects to damage the mattress

3.

Secure mattress. Fix straps loosely to moving parts of bed frame. Do not secure straps to removable head or footboards.

4.

Connect mains lead and secure using the cable clamp

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5.

Connect umbilical connector and turn to 'normal' position.

CPR

CPR

6.

Hang PMU on foot of bed or place on floor

7.

Plug Patient Management Unit (PMU) into mains socket and switch on - alarm will beep 6 times and all lights will illuminate

(x6)

?

!

1 0

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8. Check mattress is inflating (max 30 minutes fully inflated) and check straps. During inflation the 'Static' light will flash and all other lights will extinguish.

11

12

1

10

2

8

4

3

9

7 6

9.

10.

5

On completion of inflation, smooth cover, check and tighten straps.

Place one sheet loosely over mattress. When ready for patient, 'Normal' light will illuminate.

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Cushion 1.

If the system is not set up: a.

Remove the chair cushion, check the chair base is in good condition and will support the patient.

b.

Place the system cushion on the chair base, ensuring it is pushed to the back of the chair.

c.

Connect the umbilical to the PMU, plug the PMU into the mains socket and switch on.

NOTE: The power unit can be mounted on the foot of the bed, or placed on the floor in a convenient position.

2.

d.

Wait until the cushion is fully inflated and operating (cycling) correctly before use (approx 4 minutes).

e.

The Cushion Connected light will illuminate.

If the system is operating with the mattress connected: a.

Disconnect the mattress from the PMU (the Check Air Connector light may flash and the audible alarm may sound).

b.

Connect the cushion.

c.

Wait until the cushion is fully inflated and operating (cycling) before use.

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Cushion disassembly 1. REMOVE COVERS

3. UNDO 6 POPPERS (3 EITHER SIDE) AND REMOVE CELLS

**

TO HORSESHOE CELL

**

TO TRANSVERSE CELLS 4. UNDO 2 POPPERS AND REMOVE CELLS

** 2. UNDO THE UMBILICAL CONNECTOR

NOTE:

Each inflatable part of the cushion has a serial number label (marked**) attached for identification.

Cushion assembly 1. PLACE THE TRANSVERSE CELLS BETWEEN THE SIDES OF THE HORSESHOE CELL 3. FASTEN THE TWO FRONT POPPERS

2. ROUTE UMBILICAL AS SHOWN

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4. PLACE SEAT CELLS ON TOP OF TRANSVERSE CELLS. PUSH THE WINGS UNDER THE HORSESHOE CELL. FASTEN THE SIX POPPERS

COVER NOT SHOWN FOR CLARITY 5. ROUTE UMBILICAL AS SHOWN. REPLACE UMBILICAL COVER TYING TAPES AROUND THE SEAT CELL TUBING. GENTLY PULL THE CELL TUBING FORWARD TO ENSURE IT IS NOT UNDERNEATH THE SEAT CELLS (UNDO THE TWO FRONT POPPERS TO REPLACE THE COVER IF REQUIRED, ENSURING THEY ARE RE-FASTENED ON COMPLETION) 6. RE-CONNECT CUSHION TO POWER UNIT AND INFLATE. ENSURE SEAT CELLS ARE CENTRALISED, PULLING INTO POSITION IF REQUIRED

7. WHILE INFLATING, TURN THE CUSHION OVER. BY LIFTING AND STRAIGHTENING THE BOTTOM SHEET AND MANIPULATING THE TRANSVERSE CELLS, ENSURE THE REAR OF THE TRANSVERSE CELLS ALIGN WITH THE REAR OF THE SEAT CELLS

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3.2

REPLACEMENT OF COVERS

Mattress and Umbilical Fully unzip the cover and remove the top section. Release the strap securing the umbilical cover to the mattress pipes and remove the umbilical cover. Undo the 6 clips securing the mattress to the cover bottom section, pull the umbilical through the sleeve in the cover and lift the mattress out of the cover bottom section.

Replacement is the reverse of the above, with the following additions: To ensure the cover sits over the mattress snugly, when the mattress is inflated pull down on the top cover sides to straighten the cover, then smooth down.

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Cushion and Umbilical

3. UNTIE TAPES SECURING UMBILICAL COVER AND REMOVE

2. REMOVE PLASTIC STIFFENING BOARD BEFORE REMOVING COVER

1. UNZIP REAR OF COVER

NOTE:

When fitting the umbilical cover, ensure the elasticised end fits fully into the groove on the umbilical connector. Loosely refit the strap around the internal pipes. GROOVE

UMBILICAL CONNECTOR

UMBILICAL COVER

FIT ELASTICATED END OF UMBILICAL COVER INTO GROOVE

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3.3

OPERATION

Patient management Unit Front Panel Functions

NORMAL MODE CONSTANT LIGHT SELECT PRESSURE MODE FLASHING LIGHT

CHECK UMBILICAL CONNECTOR INDICATOR LIGHT

SYSTEM ALARM INDICATOR LIGHT

CPR MODE INDICATOR LIGHT

NORMAL MODE / STATIC MODE PUSHBUTTON

STATIC MODE CONSTANT LIGHT

CUSHION CONNECTED INDICATOR LIGHT

AUDIBLE ALARM RESET BUTTON

SERVICE REQUIRED INDICATOR LIGHT

FAST INFLATION MODE CONTINUOUS FLASHING LIGHT STEP DOWN MODE FLASHING LIGHT (LIGHT FLASHES IN GROUPS OF 2 OR 3)

The PMU front panel both controls and indicates the various functions of the system and includes audible and visual indicators. The functions areas follows: Fast Inflate Mode (Fast Mattress Inflation) When switched ON with the umbilical connector in Normal position and the mattress fully deflated, the system will automatically go into Fast Inflation Mode to ensure the mattress inflates quickly, allowing the system to be used in the shortest possible time (max 30 min). While the system is in Fast Inflate Mode, the amber Static Mode indicator light will continually flash. If the system is switched ON with a partially inflated mattress, Fast Inflation will continue for a shorter period before reverting to Normal Mode. Normal Mode (Normal System Operation) When the Fast Inflation Mode is completed, the system will automatically go into Normal Mode, with the mattress cells inflating and deflating (cycling) and the green Normal Mode indicator light constantly illuminated. Static Mode (Mattress not Cycling) WARNING:

The patient will not receive the full benefits of the system while it is in Static Mode, therefore the system should be returned to Normal Mode as soon as possible.

Some nursing procedures may require a static, fully inflated mattress. This is achieved by pressing the Normal/Static pushbutton to initiate Static Mode. A single beep will sound to indicate Static Mode is selected. Static Mode enables the PMU to inflate all cells fully and to maintain full inflation. When Static Mode is selected, the amber Static Mode indicator light will illuminate. LFT5424 TRINOVA MODEL 7101

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Static Mode runs for 30 minutes, after which it reverts to Normal Mode, unless an extension is made. An alarm sounds after 25 minutes to warn of a return to Normal Mode. To extend Static Mode for a further 30 minutes within the last 5 minutes, press the Normal/Static Mode pushbutton twice. If Static Mode is re-selected within the last 5 minutes, or up to 15 minutes after reversion to Normal Mode, the system assumes an extension has been made and will not allow a further extension. Only one extension is allowed and Static Mode cannot be selected for 30 minutes after the extension is finished. NOTE:

You can toggle between Normal and Static Modes by pressing the Normal/Static Mode pushbutton, unless it is within 30 minutes of a Static Mode extension.

Step Down Mode (Mattress not Cycling) WARNING:

The patient will not receive the full benefits of the system while it is in Step Down Mode. After assessment if the system is still required reinstate Normal Mode.

Step Down Mode enables assessment to be made of the patients continued requirement for using the system by halting the pressure cycling. Step Down Mode can only be selected when in Normal or Static Modes. Starting or Stopping Step Down Mode, press and hold the Alarm Reset and Normal/Static pushbuttons at the same time until a beep is heard. When Step Down Mode is selected, the mattress becomes static and the pressure automatically reduces. Step Down Mode has High and Low pressure settings. To toggle between the two settings press and hold the Normal/Static Mode pushbutton once each time until a beep is heard. The pressure selected is indicated by the Static Mode LED flashing groups of two (low pressure), and three (high pressure). To ensure the patient is regularly checked an alarm will sound after 2 hours, in groups of 2 or 3 beeps depending on pressure selected, and will continue to sound at regular intervals. This also acts as a reminder for nursing staff that the system is in Step Down Mode. The alarm can be cancelled by pressing the Alarm Reset pushbutton but will sound again after 2 hours. NOTE:

While in Step Down Mode, the patient only receives pressure care equivalent to a quality pressure redistributing foam mattress.

(CPR) Mode (Cardio Pulmonary Resuscitation) When the connector is turned to the CPR position the alarm will sound for a few seconds and the red heart will flash. The flashing red heart will cancel when CPR is no longer selected or if the Patient Management Unit (PMU) is switched off, (see Cardio Pulmonary Resuscitation. Cushion Connected When the cushion is connected in place of the mattress, the cushion indicating light will illuminate and all other lights will extinguish. Alarm Functions Check Air Connector Indicator Light The amber Check Air Connector indicator light will flash when the air connector is not correctly in place or is in the Transport Mode with the PMU turned on.

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Service Required Indicator The amber Service Required indicator light will flash after 10,000 hours of use, when a routine system service is recommended - contact the Service Organisation. The system will continue to function normally whilst in this state. System Alarm The red System Alarm indicator light will flash and the audible alarm will sound if there is a system fault. There will only be an audible alarm: Every 2 hours when in Step down Mode. Within the last 5 minutes of Static Mode. If the air connector is disconnected. For 10 seconds when CPR is selected. The System Alarm indicator light can only be reset by turning off the PMU. Alarm Reset Button Resets the audible alarm when pressed. All alarms other than the power down alarm will return after 30 minutes if no corrective action is taken. 3.4

CARDIO PULMONARY RESUSCITATION

In the event of cardiac arrest, turn the umbilical connector to the CPR position. The mattress will immediately begin to deflate. FOR RAPID DEFLATION TURN CONNECTOR FULLY IN DIRECTION OF ARROW DO NOT DISCONNECT

♥ CPR When the connector is turned to the CPR position the alarm will sound for a few seconds and the red heart will flash. The flashing red heart will cancel when CPR is no longer selected or if the Patient Management Unit (PMU) is switched off.

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If CPR is required while the bed is being moved and the system is in Transport Mode, ensure the connector is disconnected from the PMU, turn the umbilical connector to the deflate position. This will allow the mattress to deflate to enable CPR to be carried out.

ALIGN MARKER WITH RED DOT

Deflation or ♥ CPR during Transport

3.5

TRANSPORT MODE (Mattress not Cycling)

WARNING: NOTE:

The patient will not receive the full benefits of the system while it is in Transport Mode. Therefore the system should be returned to Normal Mode as soon as possible.

Prior to disconnecting the mattress for transport, it is recommended that Step Down Mode is selected to provide support for the patient during transport.

When moving the bed with, the mattress still inflated, or in the case of power failure, turn the umbilical connector to the Transport position and disconnect. This will maintain the cells in their present state for approximately 24 hours. UMBILICAL CONNECTOR RECEPTACLE

ALIGN MARKER WITH WHITE DOT

Unit Connection/Disconnection (Transport) The amber Check Umbilical Connector indicator light will flash and the audio alarm will sound until the Patient Management Unit (PMU) is switched OFF. Turn OFF the PMU and unplug from the mains supply. An audible alarm will sound - cancel the alarm by pressing the Alarm Reset pushbutton. The bed can now be moved. LFT5424 TRINOVA MODEL 7101

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When the bed has been moved to its new location, connect the PMU to the mains supply as soon as possible and turn ON. Reconnect the umbilical connector and turn to the Normal position. The system will restart in Fast Inflation Mode, then automatically revert to Normal Mode. 3.6

PROFILING AND KNEE-BREAKING

The system may be used while the bed is in the profiled or knee-break position: 1.

With the bed in its present position, loosen the mattress securing straps.

2.

Change the bed to the required position (profiled or knee-break).

3.

Re-tighten the securing straps.

3.7

REMOVAL

Patient Management Unit Switch unit off, silence alarm, disconnect from mains.

Mattress Disconnect umbilical connector and turn to deflation position. Roll up mattress. Remove PMU

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Cushion Disconnect umbilical connector (remove cushion from chair if required).

3.8

ALARMS AND FAULT FINDING

Alarm The System has audible and visual indicators to alert the user to the system status. In normal conditions with mains power available, the Patient Management Unit (PMU) is turned on and the mattress fully inflated and cycling, the Normal Mode indicator light on the PMU front panel will be green and the mains light on the switch socket illuminated. If at any time power from the mains should be removed from the PMU, an audible alarm will be heard. The audible alarm may be cancelled by pressing the Alarm Reset Pushbutton on the PMU. Should your system develop a fault whilst in use, the System Alarm indicator light will turn red and an audible alarm will be heard. This alarm may be cancelled by switching OFF the PMU and then pressing the Alarm Reset Pushbutton. NOTE:

The red fault light may flash in a series of between two and seven flashes. Take note of this, as this will assist the supplier when contacted about the fault.

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