Huntleigh Healthcare
Flowtron Hydroven 12 Service Manual Issue 1 April 2006
Service Manual
92 Pages
Preview
Page 1
Flowtron Hydroven 12 Service Manual
Contents
CONTENTS CHAPTER 1 Introduction... 1 About This Manual... 1 Numbering and Cross-Referencing in this Manual... 1 Warnings, Cautions and Notes... 1 General Warnings... 1 General Description... 2 Flowtron Hydroven 12 System... 2 Pump (refer to Figure 1)... 2 Garments (refer to Figure 2)... 3 Operating Principle... 5 System Components... 5 Inflation Modes... 7 Operating Modes... 8 Controls, Indicators and Alarms... 9 Pump Controls and Indicators... 9 Storing New Therapy Settings... 11 Pump Alarms... 11 Operation... 13 Preparing the System... 13 Changing the Therapy Settings... 14 Starting Therapy... 15 Stopping Therapy... 15 Storing New Therapy Settings... 16 Control Panel Lockout... 16
CHAPTER 2 Troubleshooting... 1 General... 1 Diagnosing User Errors using a Troubleshooting Table... 2 Diagnosing Pump Malfunctions using a Troubleshooting Table... 3
CHAPTER 3 Maintenance... 1 Service... 1 Maintenance Checks... 2 Garment and Garment Insert Service... 3
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Garment and Garment Insert Maintenance Checks... 3
CHAPTER 4 Testing... 1 Pump Control Panel... 1 Basic System Operation Test... 1 Preparing the System... 1 Power-Up Built-In Self-Test Routine... 2 Checking the Therapy Settings... 2 Starting Therapy... 3 Stopping Therapy... 3 Pump Pressure Test... 5 General... 5 Preparing the System... 5 Running the Test... 6 Inflation Test of the Garment or Garment Insert... 8 General... 8 Test Equipment... 8 Inflation Testing of the Garment... 8 Electrical Safety Testing of Pump... 9 Electrical Safety Tests - Class II (Double Insulated) with Functional Earth... 9 Test Equipment... 9 Insulation Resistance Test... 9 Dielectric Strength Test (Flash Test)... 9 Leakage Circuit Test (for USA and Canada only)... 11 Earth/Ground Continuity Test (for USA and Canada only)... 11
CHAPTER 5 Pump Repair... 1 General... 1 Pump Repair to Testing Requirements... 2 Pump Labels... 3 Removing the Case IEC Cover... 5 Installing the Case IEC Cover... 5 Replacing the Inlet Filter Felt... 5 Removing the Mains/Power Cordset... 5 Installing the Mains/Power Cordset... 5 Removing the Rear Case Assembly and Handle Assembly from the Pump... 7 Installing the Rear Case Assembly and Handle Assembly onto the Pump... 7
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Separating the Top Case Assembly from the Front Case Assembly... 9 Installing the Top Case Assembly onto the Front Case... 11 Removing the 12-Chamber Pressure Module Assembly... 13 Installing the 12-Chamber Pressure Module Assembly... 15 Removing the Timing Belt on the 12-Chamber Pressure Module Assembly... 17 Installing the Timing Belt on the 12-Chamber Pressure Module Assembly... 17 Replacing the Ventor Sealing Disc on the 12-Chamber Pressure Module Assembly... 19 Removing the Control Printed Circuit Board (PCB) Assembly... 21 Installing the Control Printed Circuit Board (PCB) Assembly... 21 Removing the Compressor Assembly and Mounting Bracket... 23 Installing the Compressor Assembly and Mounting Bracket... 23 Removing the Compressor Assembly from the Mounting Bracket... 25 Installing the Compressor Assembly onto the Mounting Bracket... 25 Removing the Power Supply Printed Circuit Board (PCB) Assembly... 27 Installing the Power Supply Printed Circuit Board (PCB) Assembly... 27 Replacing the Front Case... 29 Replacing the Rear Case... 31 Removing the Rubber Bung... 33 Installing the Rubber Bung... 33 Replacing the Top Case... 35 Replacing the Mains/Power Fuses on the Power Supply PCB Assembly... 36 Replacing the Air Inlet Filter on the Compressor Assembly... 36
CHAPTER 6 Technical Specification... 1 Pump... 1 Garments... 2
CHAPTER 7 Parts List... 1 General... 1 Overall Assembly Parts List... 1 Pump Assembly Parts List... 2 Special Tools and Test Equipment... 4
CHAPTER 8 Service Contact Details... 1
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Introduction
CHAPTER 1 INTRODUCTION 1
About This Manual
Huntleigh Healthcare strongly recommend that their equipment is only serviced by trained personnel and provide courses for customers who wish to become licensed to service their own equipment. In no event will Huntleigh Healthcare be responsible for any service performed by customers or third parties. This manual contains information on maintenance, servicing, repair, troubleshooting and testing for the Flowtron Hydroven™ 12 system which comprises a pump and multi-chamber arm or leg garments. Read and understand this manual before attempting to service or repair the equipment.
Numbering and Cross-Referencing in this Manual For all chapters in this manual: •
Page, section and paragraph numbering re-start at “1”.
•
Figure and table numbering continue from the previous chapter.
•
Cross-references which include a chapter number (and/or chapter title) refer to text in a different chapter. Cross-references which do NOT include any chapter number (or chapter title) refer to text within the same chapter.
Warnings, Cautions and Notes WARNINGS given in this manual identify possible hazards in procedures or conditions which, if not correctly followed, could result in death, injury or other serious adverse reactions. CAUTIONS given in this manual identify possible hazards in procedures or conditions which, if not correctly followed, could result in equipment failure or damage. Notes given in this manual are used to explain or amplify a procedure or condition.
General Warnings WARNING: BEFORE PERFORMING ANY SERVICE OR MAINTENANCE PROCEDURES, ENSURE THAT THE EQUIPMENT HAS BEEN ADEQUATELY DECONTAMINATED. WARNING: VOLTAGES IN EXCESS OF 30 VOLTS RMS OR 50 VOLTS DC CAN, IN CERTAIN CIRCUMSTANCES, BE LETHAL. WHEN WORKING ON EQUIPMENT REQUIRING EXPOSURE TO LIVE, UNPROTECTED CONDUCTORS WHERE SUCH VOLTAGES ARE PRESENT, EXTREME CARE MUST BE EXERCISED.
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General Description
Flowtron Hydroven 12 System The Flowtron Hydroven 12 system is a multi-chamber intermittent pneumatic compression (IPC) system, which comprises a pump and multi-chamber arm or leg garments. Optional multi-chamber garment inserts can be used to increase the circumference of the arm and leg garments. The pump supplies air to inflate the chambers in the garments via connecting tubes, allowing the application of controlled pressure to gently compress and/or massage the limb. The pump has three inflation modes: •
Sequential.
•
Wave.
•
LymphAssist™.
Sequential and Wave inflation are used for the treatment of wounds, chronic venous insufficiency, and venous or dependency oedema. The gentle compression of the limb increases the return of blood and excess fluids, improves venous stasis and encourages the reabsorption of waste products. LymphAssist inflation is used where there is a requirement to move lymph away from malfunctioning lymphatics. The gentle, rhythmic massage of the limb throughout the LymphAssist cycle moves the skin in the direction of the lymph flow and stimulates the lymphatic vessels, which carry proteins and waste products. The pump can also be set to “link” LymphAssist cycles with Sequential or Wave cycles to treat patients with lympho-venous oedema.
Pump (refer to Figure 1) The Flowtron Hydroven 12 pump is designed for table-top use, with the controls situated at the front of the pump. It comprises a moulded case with non-slip feet on the base and rear cover, and an integral carry handle. Garment Connections There are two 12-way connectors on the front of the pump. They are covered by a 2-part, hinged, rubber bung, which is secured to the pump by a strap. The bung is fitted over both connectors when the pump is being cleaned to prevent ingress of fluids.
Carry Handle
Upper 12-way Connector
Control Panel Lower 12-way Connector (under rubber bung) Figure 1 - Pump
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The garments are connected to these two 12-way connectors, which are push-fit and polarised to prevent incorrect orientation of the connectors. The following pump/garment connections are possible: •
If two garments are used (either two arm garments, two leg garments, or one arm/leg garment and one garment insert), one will be connected to the upper connector and the other connected to the lower connector. The two connections are interchangeable - both garments will inflate at the same time and to the same pressure.
•
If only one garment is used, it must be connected to the upper connector and the rubber bung must be securely fitted to the lower connector (folded as shown in Figure 1). Note: If the 12 outputs on the lower connector are not completely occluded by the bung, there will be a significant loss of air from the pump and the Low Pressure alarm will be activated.
Garments (refer to Figure 2) The Flowtron Hydroven 12 pump is designed to be used with Hydroven™ 12 garments, which are available in two sizes for arms and four sizes for legs. Each length arm and leg garment has a corresponding Hydroven 12 insert piece which increases its circumference by 17 cm for arm garments and 19 cm for leg garments. The length of the tubeset is 140 cm from the pump connector to the foot/hand end of the garment. All garments (arm garments, leg garments and garment inserts) have multiple chambers. Each chamber overlaps the adjacent chamber to provide smooth and seamless pressure application, and prevent pressure voids or ridging to the limbs. All garments have zip closures. When closed, the inflating chamber section overlaps underneath the zip around the whole circumference of the limb to prevent pressure voids and ridging of the skin underneath the zip section. The leg garment (and leg garment insert) has a unique 5-chamber foot section which provides fine application of pressure to the foot, promoting blood and lymph movement. Garment inserts are available for arm and leg garments to fit larger limbs. Once connected to the garment and pump they are designed to inflate in sequence with the garment to provide unique inflation capabilities for larger limbs.
Arm Garment
Leg Garment
Arm Garment Insert Piece
Leg Garment Insert Piece
Figure 2 - Garments and Garment Insert Pieces
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12-Port Rotary Valve Assembly 12-Chamber Pressure Module Assembly
Pressure Transducer
Control PCB Assembly
Stepper Motor
Ribbon Cable
2 Microswitches
Power Supply PCB Assembly
Mains/Power Fuses
Mains/Power Cordset
Compressor Assembly
Serial Interface Connector
Figure 3 - Electrical Schematic of the Pump
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Operating Principle
System Components Refer to Figure 3 for the electrical schematic of the pump. Pump The compressor in the pump provides a flow of air to the pneumatic system. The compressor has a variable output which the pump controls, so that the performance of the compressor is matched to the instantaneous requirements of the system. The output of the compressor is fed to the 12-chamber pressure module assembly, which comprises a 12-port rotary valve assembly, a stepper motor and two microswitches. The 12-port rotary valve assembly controls the delivery of air to the 12 chambers in the garments. The stepper motor drives the 12-port rotary valve assembly via a toothed timing belt. The two microswitches detect the position of the rotor in the 12-port rotary valve assembly. The control printed circuit board (PCB) controls the compressor, the stepper motor in the 12-chamber pressure module assembly, and the controls and indicators on the control panel on the top of the pump. It also performs a continuous check of the operation and performance of the pneumatic circuit. In the event of a detected fault, the electronic monitoring system generates both visual and audible alarms. The pressure transducer on the control PCB is connected via a tube to the 12-chamber pressure module assembly. It provides the monitoring system with the means of accurately measuring the pressure of the air supply from the pump. The power supply PCB, in addition to generating the DC voltages for use in the pump, provides interfaces to the compressors and the serial interface connector on the base of the pump. Calibration of Replacement Sub-Assemblies in the Pump The main replaceable sub-assemblies in the pump are: •
12-chamber pressure module assembly.
•
Compressor assembly.
•
Control PCB assembly.
•
Power supply PCB assembly.
These replacement sub-assemblies are factory-calibrated, and do not require any further calibration after they have been installed in the pump. Pressure Transducer Calibration The pump utilizes a precise and accurate pressure measurement and control system. It is factorycalibrated, and is not expected to require re-calibration until after several years of continuous use. The measurement system automatically handles any adverse effects due to drift or temperature change and should not require any user intervention. The pump is factory-calibrated, and should not normally require field re-calibration. Controls, Indicators and Alarms The controls and indicators are located on the control panel, and a sophisticated alarm system differentiates between normal operation and genuine system faults. If an alarm situation is detected, an alarm message will be displayed on the control panel and an audible warning will sound. Garments All garments (arm garments, leg garments and garment inserts) have multiple chambers. The chambers are inflated in a pre-determined sequence, according to the inflation modes detailed in “Inflation Modes” on page 7.
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Pressure 100% 60%
Chamber Figure 4 - Sequential Inflation Cycle
Pressure 100% 60%
Chamber Figure 5 - Wave Inflation Cycle
Start of LymphAssist Cycle
“Partial”-Peristaltic Wave Inflation Start of Next LymphAssist Cycle
5 LymphAssist Pulses
Garment Chamber
Proximal
Distal
12 11 10 9 8 7 6 5 4 3 2 1
Peristaltic Wave Inflation
Time LymphAssist Cycle
Deflate Time
Figure 6 - LymphAssist Inflation Cycle
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Inflation Modes The pump has the following three inflation modes: Sequential Inflation (refer to Figure 4) 1.
The first garment chamber starts to inflate.
2.
When the first chamber has been inflated to the correct pressure, the second chamber starts to inflate.
3.
This sequence continues for all 12 chambers. Note: In Sequential mode, all chambers are kept fully inflated while subsequent chambers are inflated. However, the pressure in each chamber does decrease slightly throughout the remainder of the inflation cycle.
4.
After the final chamber has been inflated, all chambers are then deflated simultaneously.
5.
The pressure in each chamber is less than the pressure in the preceding chamber, and the pressure in the final chamber is set to 60% of the pressure in the first chamber.
Wave Inflation (refer to Figure 5) 1.
The first garment chamber starts to inflate.
2.
When the first chamber has been inflated to the correct pressure, the second chamber starts to inflate.
3.
When the second chamber has been inflated to the correct pressure, the first chamber starts to deflate and the third chamber starts to inflate. Note: This may feel to the patient that more than one chamber is inflated at any one time.
4.
This sequence continues for all 12 chambers.
5.
The pressure in each chamber is less than the pressure in the preceding chamber, and the pressure in the final chamber is set to 60% of the pressure in the first chamber. Note: Wave inflation is also known as “peristaltic” inflation.
LymphAssist Inflation (refer to Figure 6) Note: Chamber 1 is at the distal (foot/hand) end and chamber 12 is at the proximal (thigh/shoulder) end. 1.
On initial application, the LymphAssist therapy starts with a single peristaltic Wave inflation from chamber 1 to chamber 12.
2.
A LymphAssist cycle is comprised of the following sequence of inflations/deflations, starting at chamber 12, then 11, 10, etc., down to chamber 1: •
There are 5 pulses where the chamber is inflated and deflated. These are referred to as LymphAssist pulses.
•
This is followed by a single “partial”-peristaltic Wave inflation of part of the garment between the next chamber and chamber 12.
Note: For example, at chamber 5, the 5 LymphAssist pulses are followed by a partialperistaltic Wave inflation from chamber 6 to chamber 12. 3.
When the partial-peristaltic Wave inflation gets to chamber 12, there is a short delay, and then the sequence of 5 LymphAssist pulses followed by a partial-peristaltic Wave inflation is repeated for the next chamber.
4.
The LymphAssist cycle is complete after the 5 LymphAssist pulses at chamber 1 and the partial-peristaltic Wave inflation from chamber 2 to chamber 12.
5.
The next LymphAssist cycle will start after the Deflate time set on the pump control panel. Note: The maximum pump pressure that can be set in LymphAssist mode is 40 mmHg.
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Linking LymphAssist with other Therapy Cycles The LymphAssist cycle can be “linked” with Wave or Sequential cycles. In this mode of operation, a single LymphAssist cycle is followed by continuous Wave or Sequential cycles until the Treatment time has elapsed or the pump is turned off.
Operating Modes Refer to Page 9, “Controls, Indicators and Alarms” for a description of the controls and indicators on the pump. The pump has the following three operating modes: Standby After the pump has been connected to the mains/power supply, the pump will perform a short built-in self-test and then go into Standby. In Standby: •
The Run and Sleep Mode Indicators are extinguished.
•
The pump shows the previously selected therapy settings.
•
The pump is ready to start therapy. Press the Run/Standby Button to start therapy.
Sleep Mode If the pump has been in Standby for 10 minutes without any of the buttons being pressed, it then goes into Sleep mode to conserve power. Note: The pump can be left in Sleep mode for long periods without disconnecting the mains/power. In Sleep mode: •
Only the Sleep Mode Indicator on the control panel is illuminated.
•
All other displays and indicators are extinguished.
•
Press the Run/Standby Button to put the pump into Standby.
Run Mode The pump is in Run mode for the duration of the therapy session, while it is inflating and deflating the garments. In Run mode: •
The green Run Mode Indicator will be illuminated.
•
The pump automatically stops at the end of the selected therapy time and the garments are deflated.
•
The pump can be stopped during the therapy by pressing the Run/Standby Button.
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Controls, Indicators and Alarms Pressure Display
Run Mode Indicator
Sleep Mode Indicator
Run/Standby Button Pressure Setting Buttons Inflation Mode Select Button
Inflation Mode Indicators
Therapy Setting Buttons
Therapy Setting Display
Therapy Setting Indicators
Therapy Setting Select Button
Figure 7 - Typical Control Panel Display in Run Mode
Pump Controls and Indicators The pump control panel has the following controls and indicators. Note: When a button on the pump control panel is pressed, the sounder will “beep” to confirm a valid selection. Run/Standby Button, and Run and Sleep Mode Indicators •
When the pump is in Standby, both the Run and Sleep Mode Indicators are extinguished.
•
Press the Run/Standby Button to start the patient therapy. The green Run Mode Indicator (the left one of the two indicators) is illuminated to show that the pump is in Run Mode.
•
At the end of the therapy, as set by the Treatment duration, the pump will stop. The pump can also be stopped during the therapy by pressing the Run/Standby Button. Press the Run/Standby Button after the pump has stopped to reset it to Standby.
•
If the pump has been in Standby for 10 minutes without any button being pressed, it then goes into Sleep Mode to conserve power:
•
Only the red Sleep Mode Indicator (the right one of the two indicators) is illuminated in Sleep Mode, everything else is effectively shut down.
•
Press the Run/Standby Button to put the pump from Sleep Mode into Standby.
Note: The pump can be left in Sleep Mode for long periods without disconnecting the mains power. Inflation Mode Select Button and Inflation Mode Indicators (refer to Page 7, “Inflation Modes”) The pump has three main inflation modes: Sequential, Wave and LymphAssist. In addition, LymphAssist cycles can be linked with Sequential or Wave cycles, offering a total of five treatment alternatives.
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Repeated presses of the Inflation Mode Select Button will cycle the pump through the five types of patient therapy, as follows: •
Sequential
•
Wave
•
LymphAssist
•
LymphAssist plus Sequential (linked therapy cycles)
•
LymphAssist plus Wave (linked therapy cycles)
For each of the three main inflation modes (Sequential, Wave and LymphAssist), the green indicator adjacent to the selected Inflation Mode is illuminated. With linked therapy cycles (LymphAssist plus Sequential and LymphAssist plus Wave): •
Initially, the two relevant Inflation Mode Indicators are both illuminated.
•
During the therapy, the Inflation Mode Indicator will flash to show which cycle is currently operating. For example, if LymphAssist and Wave cycles are linked, then during the LymphAssist cycle the LymphAssist indicator will flash while the Wave indicator will be permanently illuminated. The indications will be reversed during the Wave cycle.
Pressure Display and Pressure Setting Buttons The value shown on the Pressure Display is the set pressure for the first garment chamber to be inflated. The pressure range for each inflation mode is: •
Sequential: 15-120 mmHg.
•
Wave: 15-100 mmHg.
•
LymphAssist: 15-40 mmHg.
The pressure can be adjusted in 5 mmHg increments by pressing the + and – Pressure Setting Buttons. Therapy Setting Select Button and Therapy Setting Indicators Repeated presses of the Therapy Setting Select Button selects which parameter is shown on the Therapy Setting Display: •
Inflate time in seconds
•
Deflate time in seconds
•
Treatment duration in minutes
The green indicator adjacent to the selected Therapy Setting is illuminated, to show which parameter can be adjusted. Therapy Setting Display and Therapy Setting Buttons The Therapy Setting Select Button is used to select which parameter is shown on the Therapy Setting Display: Inflate time, Deflate time or Treatment duration. Note: The default setting is Treatment duration. 1.
Inflate/Deflate times (in seconds). •
To adjust the settings, press the Therapy Setting Select Button until the desired Therapy Setting Indicator is illuminated, as follows: •
Inflate time
•
Deflate time
Note: The Inflate and Deflate times can only be adjusted when the pump is in Standby.
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Introduction
The Inflate time for each inflation mode can be set as follows: •
Sequential: 30-95 seconds.
•
Wave: 60-95 seconds.
•
LymphAssist: 60-95 seconds.
The Deflate time for each inflation mode can be set as follows: •
Sequential: 10-95 seconds.
•
Wave: 15-60 seconds.
•
LymphAssist: 15-60 seconds.
The Inflate and Deflate times can be adjusted in 5 second increments by pressing the + and – Therapy Setting Buttons.
Note: If the + or – Therapy Setting Buttons are not pressed for 10 seconds, the pump reverts to showing the Treatment duration option. 2.
Treatment duration (in minutes) •
Make sure the Therapy Setting Indicator adjacent to Treatment duration is illuminated. If not, press the Therapy Setting Select Button to select it.
•
The Treatment duration can be adjusted in the range 10-99 minutes, in one minute increments, by pressing the + and – Therapy Setting Buttons.
•
If you continue to hold down the + Therapy Setting Button when the Treatment duration gets to 99 minutes, CO will be shown on the Therapy Setting Display to indicate continuous therapy.
Note: The pump will automatically stop continuous therapy after two hours of continuous use. •
When the therapy starts, the Treatment duration shown on the Therapy Setting Display will count down, indicating the time remaining (to the nearest full minute).
•
The Treatment duration can be adjusted at any time, in Run or Standby modes.
•
At the end of the therapy, as set by the Treatment duration, the pump will stop.
Storing New Therapy Settings The last selected patient therapy is stored and used as the default setting for the next therapy session. For each of the three main Inflation Modes (Sequential, Wave and LymphAssist), the pump will store a separate set of four therapy settings (Pressure setting, Inflate time, Deflate time and Treatment duration). If any of these four therapy settings are adjusted, the new setting is stored and used as the default setting whenever that inflation mode is next selected.
Pump Alarms Refer to Chapter 2 “Troubleshooting” for possible causes of the pump alarms, and the relevant corrective actions which can be taken to rectify them. The pump will detect and display the following fault conditions: Low Pressure 1.
If a low pressure is detected over a number of consecutive cycles, an audible warning will sound, and a Lo alarm message will appear on the Therapy Setting Display. Note: The Lo alarm message will alternate with the remaining Treatment time on the Therapy Setting Display.
2.
The pump will continue to run and attempt to inflate the garments.
3.
Carry out the corrective actions detailed in Chapter 2 “Troubleshooting”.
4.
The alarm can be reset as follows: •
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Automatic reset. If the fault condition is rectified, the alarm will reset after one normal inflation cycle.
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Manual reset. If the fault condition has been rectified, the alarm can be manually reset by pressing the Run/Standby Button to stop the treatment session and then pressing the button again to re-start the session.
Note: The timer will be reset to the initial Treatment duration. System Fault 1.
If a system fault is detected, the pump will stop operating.
2.
An audible warning will sound, and an F alarm message will appear on the Therapy Setting Display.
3.
Immediately disconnect the garment from the pump.
4.
Press the Run/Standby Button to re-run the built-in self-test on the pump.
5.
If the fault condition can not be rectified, call a service engineer.
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Operation
CAUTION: Do not undo the zips or attempt to remove the garments during the therapy session or you may damage the zips. Make sure the therapy session has stopped and the garments have deflated before you remove the garments. Note: For a comprehensive description of the controls and indicators on the pump, refer to Section 4, Page 9 “Controls, Indicators and Alarms”.
Preparing the System 5.1
Connect the garment(s) to the two 12-way connectors on the pump, as follows: 5.1.1
If two garments are used (either two arm garments, two leg garments, or one arm/leg garment and one garment insert), one will be connected to the upper connector and the other connected to the lower connector. Note: The two connections are interchangeable - both garments will inflate at the same time and to the same pressure.
5.1.2
If only one garment is used, it must be connected to the upper connector and the rubber cover must be folded over and securely fitted to the lower connector. Note: If the 12 outputs on the lower connector are not completely occluded by the cover, there will be a significant loss of air from the pump and the Low Pressure alarm will be activated.
5.2
Connect the pump to a suitable mains/power supply. A short built-in self-test routine will run, as follows: 5.2.1
5.2.2
5.2.3
5.2.4
5.3
At the start of the routine: 5.2.1.1
The Run and Sleep Mode Indicators will be illuminated.
5.2.1.2
The Pressure and Therapy Setting Displays will remain blank.
After approximately 3 seconds: 5.2.2.1
The sounder will “beep” two times.
5.2.2.2
888 will be shown on the Pressure Display.
5.2.2.3
88 will be shown on the Therapy Setting Display.
5.2.2.4
The Run and Sleep Mode Indicators will remain illuminated.
5.2.2.5
A single illuminated LED will cycle “upwards” through the six Inflation Mode and Therapy Setting Indicators.
After a further 10 seconds: 5.2.3.1
The sounder will “beep” three times.
5.2.3.2
The Run and Sleep Mode Indicators will be extinguished.
5.2.3.3
The single illuminated LED will stop cycling through the six Inflation Mode and Therapy Setting Indicators.
This indicates that the self-test routine has been completed successfully, after approximately 13 seconds total elapsed time: 5.2.4.1
The pump is now in Standby.
5.2.4.2
The Pressure and Therapy Setting Displays, and Inflation Mode and Therapy Setting Indicators will show the previously selected therapy settings.
Check the therapy settings, as follows: 5.3.1
Press the Inflation Mode Select Button until the required inflation mode is selected, as follows: •
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Wave
•
LymphAssist
•
LymphAssist plus Sequential
•
LymphAssist plus Wave
Note: The green indicator adjacent to the selected Inflation Mode is illuminated. With linked therapy cycles, both Inflation Mode Indicators are illuminated. 5.3.2
Check the Pressure setting on the Pressure Display.
5.3.3
Check the Inflate and Deflate times and Treatment duration on the Therapy Setting Display. Press the Therapy Setting Select Button to select which parameter is shown on the Therapy Setting Display, as follows: •
Inflate time
•
Deflate time
•
Treatment duration
Note: The green indicator adjacent to the selected Therapy Setting is illuminated. 5.4
To change any of the four therapy settings, refer to “Changing the Therapy Settings” on page 14.
5.5
When the therapy settings are correct, the therapy session can then be started (refer to “Starting Therapy” on page 15).
Changing the Therapy Settings To change any of the four therapy settings (Pressure setting, Inflate time, Deflate time and Treatment duration), do the following: Setting the Pressure 1.
The value shown on the Pressure Display is the set pressure for the first garment chamber to be inflated.
2.
The pressure ranges for the different inflation modes are as follows:
3.
•
Sequential: 15-120 mmHg.
•
Wave: 15-100 mmHg.
•
LymphAssist: 15-40 mmHg.
The pressure can be adjusted in 5 mmHg increments by pressing the + and – Pressure Setting Buttons. If the + or – button is held down, the display change increases in speed.
Note: For Sequential and Wave, the pump will not start inflating the next chamber in the garment until the set pressure is reached in the previous chamber. Therefore if the set pressure is greater than 80 mmHg, the Inflate and Deflate times may be longer than the selected values. Setting the Inflate/Deflate Times For Sequential and Wave: •
The Inflate time is the total time to inflate all 12 chambers in the garment(s) during one cycle: from starting to inflate the first chamber to the last chamber being completely deflated.
•
The Deflate time is the time between the end of one Sequential or Wave cycle and the start of the next cycle: from the last chamber being completely deflated in one cycle to starting to inflate the first chamber in the next cycle.
For LymphAssist: •
The Inflate time is the total time to inflate all 12 chambers in the garment during the single peristaltic Wave inflation at the start of the LymphAssist cycle.
•
The Deflate time is the time between the end of one LymphAssist cycle and the start of the next cycle (refer to Page 7, “Inflation Modes”).
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To set the Inflate or Deflate times, do the following: 1.
Press the Therapy Setting Select Button until the desired Therapy Setting Indicator is illuminated, as follows: •
Inflate time
•
Deflate time
Note: The Inflate and Deflate times can only be adjusted when the pump is in Standby. 2.
3.
The Inflate time for each inflation mode can be set as follows: •
Sequential: 30-95 seconds.
•
Wave: 60-95 seconds.
•
LymphAssist: 60-95 seconds.
The Deflate time for each inflation mode can be set as follows: •
4.
Sequential: 10-95 seconds.
•
Wave: 15-60 seconds.
•
LymphAssist: 15-60 seconds.
The Inflate and Deflate times can both be adjusted in 5 second increments, by pressing the + and – Therapy Setting Buttons. If the + or – button is held down, the display change increases in speed.
Note: If the + or – Therapy Setting Buttons are not pressed for 10 seconds, the pump reverts to showing the Treatment duration option. Setting the Treatment Duration 1.
The Treatment duration is the default setting for the Therapy Setting Display.
2.
Make sure the Therapy Setting Indicator adjacent to Treatment duration
is
illuminated. If not, press the Therapy Setting Select Button to select it. 3.
The Treatment duration can be set between 10-99 minutes.
4.
The Treatment duration can be adjusted in one minute increments by pressing the + and – Therapy Setting Buttons. If the + or – button is held down, the display change increases in speed.
5.
If you continue to hold down the + Therapy Setting Button when the Treatment duration gets to 99 minutes, CO will be shown on the Therapy Setting Display to indicate continuous therapy.
Starting Therapy 1.
Make sure the pump is in Standby.
Note: Make sure that all garment zips are completely and securely fastened before starting the therapy. 2.
Press the Run/Standby Button to start the patient therapy.
3.
The Run Mode Indicator will be illuminated and the Therapy Setting and Pressure Displays will show the previously selected settings. The pump will run through an initialisation process (this initialisation may take up to 15 seconds).
4.
At the end of the initialisation process the pump compressor will start running and the garment(s) will start inflating.
5.
When the therapy starts, the Treatment duration shown on the Therapy Setting Display will count down, indicating the time remaining (to the nearest full minute).
6.
The Treatment duration can be adjusted at any time during the treatment session.
Stopping Therapy 1.
There are two ways to stop the therapy, as follows:
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Introduction
Flowtron Hydroven 12 Service Manual
•
The pump will automatically stop at the end of the selected therapy time, and the garment(s) will be deflated, or
•
The pump can be stopped during the therapy by pressing the Run/Standby Button. The pump will not stop immediately as it takes a few seconds to deflate the garment(s).
2.
When the garments have been deflated, the Therapy Setting and Pressure Displays both change to zero and the pump gives 5 beeps to confirm that the treatment session has been completed.
3.
The Run Indicator is extinguished.
4.
Press the Run/Standby Button to reset the pump to Standby.
Storing New Therapy Settings 1.
If the Inflation Mode, Pressure setting, Inflate time, Deflate time or Treatment duration are adjusted, the new setting is stored and used as the default setting for the next therapy session.
2.
The new setting is stored in the pump five seconds after the last function button has been pressed. Note: If the pump is switched off during this five second period after the last function button has been pressed, the new setting will NOT be saved in the pump.
Control Panel Lockout The buttons on the pump control panel can be “locked” to prevent the patient from changing the therapy settings on the control panel. Pressure Setting 1.
2.
To lock the Pressure setting, press the following two buttons simultaneously: •
The + Pressure Setting Button.
•
The – Pressure Setting Button.
To unlock the Pressure setting, press the following three buttons simultaneously: •
The + Pressure Setting Button.
•
The – Pressure Setting Button.
•
The Therapy Setting Select Button.
Inflation Mode and Therapy Time Settings 1.
To lock the Inflation Mode, Inflate time, Deflate time and Treatment duration settings, press the following two buttons simultaneously: •
The + Therapy Setting Button.
•
The – Therapy Setting Button.
Note: In the Lockout mode, the Treatment duration is set to the nearest 5 minutes (rounded down). 2.
To unlock the Inflation Mode, Inflate time, Deflate time and Treatment duration settings, press the following three buttons simultaneously: •
The + Therapy Setting Button.
•
The – Therapy Setting Button.
•
The Therapy Setting Select Button.
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Issue 1 April 2006