User Guide
21 Pages
Preview
Page 1
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™
USER’S GUIDE
MODELS CA-3000 & CA-3200 o
MODELS CM-3000 & CM-3200 o
MEDICAL PRODUCT INNOVATIONS SINCE 1928
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T A B L E
SECTION
1
O F
C O N T E N T S
1
Introduction...
2
2
Warnings and Cautions...
3
3
Specifications...
6
4
Controls, Connectors and Visual Indicators...
7
5
Operating Procedure...
10
6
Cleaning and Disinfection...
14
7
Accessories...
15
8
Preventive Maintenance and Troubleshooting Guide
16
9
Warranty and Service
18
...
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SECTION 1
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INTRODUCTION
The Emerson CoughAssist™ Mechanical In-Exsufflator (MI-E) assists patients in clearing retained bronchopulmonary secretions by gradually applying a positive pressure to the airway, then rapidly shifting to a negative pressure. This rapid shift in pressure, via a facemask, mouthpiece or an endotracheal or tracheostomy tube, produces a high expiratory flow rate from the lungs, simulating a cough, a technique referred to as “mechanical insufflation-exsufflation.” The automatic CoughAssist MI-E (CA-3000, CA-3200) has timing mechanisms to automate the inspiratory and expiratory cycles as well as a manual control. The manual CoughAssist MI-E (CM-3000, CM-3200) uses a manually operated valve to shift from positive to negative pressure and back.
Those who might benefit from the use of the CoughAssist MI-E include any patient with an ineffective cough due to muscular dystrophy, myasthenia gravis, poliomyelitis, or other neurologic disorder with some paralysis of the respiratory muscles, such as spinal cord injury. It may also be used to treat ineffective cough due to other bronchopulmonary diseases, such as emphysema, cystic fibrosis and bronchiectasis. It is effective for both trached and non-invasively ventilated patients.
V
Indications for Use: Any patient unable to cough or clear secretions effectively due to reduced peak cough expiratory flow (less than 2 to 3 liters per second), resulting from high spinal cord injuries, neuro-muscular deficits or severe fatigue associated with intrinsic lung disease, is a candidate for this device.
V
Contraindications: Any patient with a history of bullous emphysema, known susceptibility to pneumothorax or pnuemo-mediastinum, or known to have had any recent barotrauma, should be carefully considered before use.
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SECTION 2 WA R N I N G S
AND
CAUTIONS
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E Q U I P M E N T C L A S S I F I C AT I O N Per IEC 60601-1, Medical Electrical Equipment, General Requirements for Safety, the CoughAssist MI-E is classified as follows:
Class 1 Equipment: Equipment in which protection against electric shock does not rely on basic insulation only, but includes a grounding pin on the power cord. For ground reliability always plug the power cord into an AC grounded outlet. Type BF Equipment: Type B piece of equipment with an F-Type applied part. A Type B piece of equipment is one that provides a particular degree of protection against electric shock, particularly regarding allowable leakage current and reliability of the protective earth connection (grounding). F-Type applied part is one that extends from the patient into the equipment and is isolated from all other parts of the equipment. Water Ingress: This device does not have protection against ingress of water. Disinfection: With the exception of the patient circuit, this device can be disinfected using 70% isopropyl alcohol or equivalent. (See Section 6: Cleaning and Disinfection.) Flammable Anesthetics: This device is not suitable for use in the presence of a flammable anesthetic mixture with air, or in the presence of a flammable anesthetic mixture with oxygen or nitrous oxide. Intermittent Operation: This device is designed for Intermittent Operation Only and not for continuous use. The device should not be cycled continuously for more than 5 minutes. After such time, the unit should either be turned off or left idling with the blower on for at least 5 minutes.
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I M P O R TA N T S A F E G U A R D S
DEFINITIONS Throughout this guide the following definitions apply: •
Warning/DANGER: A condition that could cause electrocution or injury to a user or operator if instructions are not followed.
•
CAUTIONS: A condition that could cause damage to equipment or cause inaccurate function.
WA R N I N G S V
Patients known to have cardiac instability should be monitored for pulse and oxygen saturation very closely.
V
Soreness and/or pain in the chest from a pulled muscle may occur in patients using the CoughAssist MI-E for the first time if the positive pressure used exceeds pressures, which the patient normally receives during Positive Pressure Therapy. 1 Such patients should start at a lower positive pressure during treatment, and gradually (over several days, or as tolerated) increase the positive pressure used.
V
Do not use in the presence of flammable anesthetics.
V
Connection should be made to a grounded outlet only.
V
Do not place or store the device where it can fall or be pulled into a tub or sink.
V
If the device comes into contact with water, unplug the unit.
V
Never operate the CoughAssist MI-E if it has a damaged cord or plug, is not working properly, or has been dropped, damaged or immersed in water.
1 Positive Pressure Therapy includes the use of a volume ventilator, nasal or mask ventilation or CPAP (Continuous Positive Airway Pressure), or IPPB (Intermittent Positive Pressure Breathing).
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WA R N I N G S
AND
CAUTIONS
V
Replace fuses only with ones having the same ratings for blow characteristics, current and voltage.
V
Do not remove the cover; there are no serviceable parts inside the unit. Refer all service to authorized personnel.
V
Always check time and pressure settings before each treatment.
CAUTIONS
5
•
Federal Law (USA) restricts this device to use by, or at the direction of a physician.
•
Position the CoughAssist MI-E so that the air intake ports on the side and rear of the unit are not blocked.
•
Never operate the device unless a bacterial/viral filter is attached to the patient circuit.
•
Always use a new filter when using the device on a new patient.
•
This device is designed for Intermittent Operation Only and not for continuous use. The device should not be cycled continuously for more than 5 minutes. After such time, the unit should either be turned off or left idling with the blower on for at least 5 minutes.
•
Turn the unit off when not in use.
•
Keep the cord away from heated surfaces.
•
Do not sterilize with ethylene oxide gas or steam sterilize the pump or pump housing.
•
This device should only be used by trained personnel.
SECTION 2A
SUPPLEMENTAL WARNINGS AND CAUTIONS CAUTIONS • Medical Electrical Equipment needs special precautions regarding Electromagnetic Compatibility (EMC) and
needs to be installed and put into service according to the EMC information provided in the Accompanying Documents (see below). • Portable and mobile RF Communications Equipment can affect Medical Electrical Equipment. Guidance and manufacturer’s declaration – electromagnetic emissions The CoughAssist is intended for use in the electromagnetic environment specified below. The customer or user of the CoughAssist should ensure that it is used in such an environment. Emissions test Compliance Electromagnetic environment - guidance The CoughAssist uses RF energy only for its internal function. RF Emissions Group 1 Therefore, its RF emissions are very low and are not likely to cause CISPR 11 any interference in nearby electronic equipment. The CoughAssist is suitable for use in all establishments, including RF Emissions Class B domestic, and those directly connected to the public low-voltage CISPR 11 power supply network that supplies buildings used for domestic Harmonic emissions Class A purposes. IEC 61000-3-2 Voltage fluctuations/ flicker emissions Complies IEC 61000-3-3 WARNING The equipment or system should not be used adjacent to or stacked with other equipment and, if adjacent or stacked use is necessary, the equipment or system should be observed to verify normal operation in the configuration in which it will be used. Guidance and manufacturer’s declaration – electromagnetic immunity The CoughAssist is intended for use in the electromagnetic environment specified below. The customer or user of the CoughAssist should ensure that it is used in such an environment. Immunity test IEC 60601 test level Compliance level Electromagnetic environment - guidance Electrostatic Floors should be wood, concrete or ceramic ±6 kV Contact ±6 kV Contact discharge (ESD) tile. If floors are synthetic, the r/h should be ±8 kV Air ±8 kV Air IEC 61000-4-2 at least 30%. Mains power quality should be that of a Electrical fast ±2 kV for power ±2 kV for power typical commercial or hospital environment transient/burst supply lines supply lines IEC 61000-4-4 ±1 kV for I/O lines ±1 kV for I/O lines Mains power quality should be that of a Surge ±1 kV line to line ±1 kV line to line typical commercial or hospital environment IEC 61000-4-5 ±2 kV line to earth ±2 kV line to earth Mains power quality should be that of a Voltage dips, short >95% dip for 0.5 >95% dip for 0.5 typical commercial or hospital environment. interruptions and cycle cycle If the user of the CoughAssist requires voltage variations continued operation during power mains on power supply 60% dip for 5 cycles 60% dip for 5 cycles interruptions, it is recommended that the input lines IEC61000-4-11 30% dip for 25 cycles 30% dip for 25 cycles CoughAssist be powered from an uninterruptible power supply or battery. >95% dip for 5 sec >95% dip for 5 sec 3 A/m Power frequency magnetic fields should be Power Frequency 3 A/m that of a typical commercial or hospital (50/60 Hz) environment. magnetic Field IEC 61000-4-8 CoughAssist User’s Guide Supplement – 910-1211-0 PLEASE INSERT BETWEEN SECTIONS 2 AND 3 J. H. Emerson Co., 22 Cottage Park Ave, Cambridge, MA 02140-1691
5A
SUPPLEMENTAL WARNINGS AND CAUTIONS Guidance and manufacturer’s declaration – electromagnetic immunity The CoughAssist is intended for use in the electromagnetic environment specified below. The customer or user of the CoughAssist should ensure that it is used in such an environment. Immunity test IEC60601 test level Compliance level Electromagnetic environment – guidance Portable and mobile communications equipment should be separated from the CoughAssist by no less than the distances calculated/listed below: Conducted RF IEC 61000-4-6
3 Vrms 150 kHz to 80 MHz
V1=3 Vrms
D=(3.5/V1)(Sqrt P)
Radiated RF IEC 61000-4-3
3 V/m1 80 MHz to 2.5 GHz
E1=1 V/m1
D=(3.5/E1)(Sqrt P) 80 MHz to 800 MHz D=(7/E1)(Sqrt P) 800 MHz to 2.5 GHz where P is the max power in watts and D is the recommended separation distance in meters.1 Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey, should be less than the compliance levels (V1 and E1).
Interference may occur in the vicinity of equipment containing a transmitter. NOTE 1: The technology used to regulate pressure in the CoughAssist could not be modified with reasonable effort to provide immunity at a 3 V/m level. As a result all user guidance has been provided for a 1 V/m field level at which the system was found immune. Recommended Separation Distances for the CoughAssist The CoughAssist is intended for use in the electromagnetic environment in which radiated disturbances are controlled. The customer or user of the CoughAssist can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF Communications Equipment and the CoughAssist as recommended below, according to the maximum output power of the communications equipment. Separation (m) Separation (m) Max Output Power Separation (m) 800 MHz to 2.5 GHz 80 to 800 MHz (Watts) 150 kHz to 80 MHz 0.01 0.1 1 10 100
5B
D=1.1667(Sqrt P) 0.11667 0.36894 1.1667 3.6894 11.667
D=3.5(Sqrt P) 0.35 1.107 3.5 11.07 35
D=7(Sqrt P) 0.7 2.214 7.0 22.14 70
CoughAssist User’s Guide Supplement - 910-1211-0 PLEASE INSERT BETWEEN SECTIONS 2 AND 3 J. H. Emerson Co., 22 Cottage Park Ave, Cambridge, MA 02140-1691
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SECTION 3
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SPECIFICATIONS
Maximum Positive Pressure:
60 cm H2O (44 mm Hg)
Maximum Negative Pressure:
60 cm H2O (44 mm Hg)
Standards:
Conforms to UL STD 2601-1, certified to CAN/CSA - STD C22.2 No. 601.1-M90,
Maximum Inhalation Flow:
3.3 liters/second with inhale flow set to minimum; if set to maximum inhalation, the flow is the same as the exhalation flow
Maximum Exhalation Flow Capacity:
10 liters/second; actual flow depends on maximum pressure and on airway resistance
Pressure Gauge:
-70 to 0 to +70 cm H2O; accuracy +/-2% of full scale
Mode of Operation:
Models CA-3000, CA-3200: Automatic and Manual Timing Models CM-3000, CM-3200: Manual Timing
Inhalation, Exhalation, Pause Times:
CA-3000, CA-3200: Automatic mode, 0 to 5 seconds CM-3000, CM-3200: User variable
“Off” Position:
Yes - connects to ambient
Blower Type:
Two-stage centrifugal blower with AC/DC universal motor
Input Voltage:
CA-3000, CM-3000: 100-120 VAC, 60Hz CA-3200, CM-3200: 220-240 VAC, 50Hz
Input Power:
CA-3000, CM-3000: 300 VA CA-3200, CM-3200: 600 VA
Dimensions:
292mm x 279mm x 419mm (HxWxD) (11.5” x 11” x 16.5”)
Weight:
CA-3000, CA-3200: 11 kg (24 lbs) CM-3000, CM-3200: 9.3kg (20.6 lbs)
Temperature Specifications:
Operating temperature range: +10 to +40°C (+50 to +104°F) Storage temperature range: -20 to +50°C (-4 to +122°F)
Humidity Specifications:
Operating humidity range: Storage humidity range:
0413
30% to 75% 10% to 90%
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SECTION 4
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C O N T R O L S , C O N N E C T O R S & V I S U A L I N D I C AT O R S
CA-3000, CA-3200 F R O N T PA N E L C O N T R O L S 1
3
14 13 12
4
11
2
1. Manual/Auto: Changes the cycling mechanism to either manual or automatic mode. 2. Inhale: Sets time interval (sec) for Inhale phase of automatic cycling. Not operative in the manual mode.
10 5
9
o
6
7
3. Exhale: Sets time interval (sec) for Exhale phase of automatic cycling. Not operative in the manual mode. 4. Pause: Sets time interval (sec) for Pause phase of automatic cycling. Not operative in the manual mode.
8 5.
Power: The power switch turns on or off the CoughAssist MI-E. The “I” symbol on the switch designates the on position. When activated a green light within the switch will illuminate. The “O” symbol designates the off position.
6.
Manual Control Lever: Use to manually cycle the unit to inhale or exhale. Not operative in the automatic mode.
7.
Pressure: Varies the inhalation and exhalation pressures together (also see Inhale Pressure).
8.
Handle: Recessed carrying handle.
9.
Patient Port: Connection for patient circuit.
10.
: Symbol for Type B Equipment with F-Type applied part.
11. Inhale Flow: There are two inhalation flow settings: Full (
) and Reduced (
).
NOTE: When using reduced inhalation flow there will be a small reduction in inhale pressure. 12. Inhale Pressure: Varies the inhalation pressure between 50% and 100% of the exhale pressure. 13. Pressure Gauge Zero Adjust: Access to “zero” adjustment on the pressure gauge. Use only if the gauge does not return to “O” when the unit is turned off (see Section 8).
7
14. Pressure Gauge: Indicates pressure in the patient circuit calibrated in cm H2O.
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CM-3000, CM-3200 F R O N T PA N E L C O N T R O L S 1.
2.
3.
Pressure: Varies the inhalation and exhalation pressures together (also see Inhale Pressure). Manual Control Lever: Use to manually cycle the unit to inhale or exhale. Power: The power switch turns on or off the unit. The “I” symbol on the switch designates the on position. When activated a green light within the switch will illuminate. The “O” symbol designates the off position.
4.
Handle: Recessed carrying handle.
5.
Patient Port: Connection for patient circuit.
6.
10 9 8
1 2
7 6
3
o
5
4
: Symbol for Type B Equipment with F-Type applied part.
7.
Inhale Flow: There are two inhalation flow settings: Full ( ) and Reduced ( ). NOTE: When using reduced inspiratory flow there will be a small reduction in inspiratory pressure.
8.
Inhale Pressure: Varies the inhalation pressure between 50% and 100% of the exhale pressure.
9.
Pressure Gauge Zero Adjust: Access to “zero” adjustment on the pressure gauge. Use only if the gauge does not return to “0” when the unit is turned off (see Section 8).
10. Pressure Gauge: Indicates pressure in the patient circuit calibrated in cm H2O.
8
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C O N T R O L S , C O N N E C T O R S & V I S U A L I N D I C AT O R S
B A C K PA N E L ( A L L M O D E L S ) 1
2 3
1.
Cord Wrap/Breathing Hose Holder
8
2.
Power Cord Receptacle: Securely connects the power cord to the receptacle.
7 6 5
3.
Replacement fuse location
4.
This symbol, located next to the protective earth terminal inside the unit, signifies that the device is earthed (grounded).
5.
This symbol signifies the year of manufacture of the device. The name and address of our authorized representative for Europe appears below it.*
4 6.
Marking of conformity to European Medical Device Directive, plus the 4-digit number signifying the applicable notified body.*
7.
Listing of product safety standards
8.
Product Label Description:
* Applies to 230-volt units only (CA-3200 & CM-3200)
J. H. Emerson Company logo and address
Model Number
Voltage input range in volts indicates AC voltage input
Serial Number ATTENTION – consult accompanying documents (i.e. this User’s Guide)
Power input in voltamperes Nominal frequency of AC voltage input in hertz
Replacement Fuse Characteristics
T 3.0A L 250V Time-lag or slow-blow
9
Rated current
Voltage rating Low breaking capacity
INTERMITTENT OPERATION ONLY: See Section 5: Operating Procedure. It defines the mode of operation, per IEC 60601-1, for safe operation.
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SECTION 5
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OPERATING PROCEDURE
INITIAL SET-UP 1.
Install the power cord right angle connector to the receptacle on the rear of the device. Run the cord inside of the lower cord wrap to act as a strain relief.
2.
Position the unit on a suitable surface within easy reach of the patient, or the operator of the unit. CAUTION: Position the device so that the air intake ports on the side and rear of the unit are not blocked.
3.
Assemble the patient circuit (filter, breathing hose and patient interface) as follows:
4.
a.
Attach the bacterial/viral filter to the patient port on the front panel.
b.
Attach the 3-foot 22mm ID smooth bore breathing hose to the bacterial/viral filter.
c.
Attach the appropriate patient interface to the breathing hose. Patient interface options include a facemask and adapter, mouthpiece, lip seal or tracheostomy tube adapter. (A facemask and adapter are included with each unit.)
Plug the power cord into an AC grounded outlet of appropriate voltage.
a.
b.
o
Automatic Model shown above c.
NOTE: There are no requirements regarding avoidance with other devices 2. 2 CoughAssist MI-E meets IEC 60601-1-2 for Electromagnetic Interference and Immunity, Medical Electrical Equipment, Part 1, General Requirements for Safety, 2. Collateral Standard: Electromagnetic Compatibility Requirements and Tests, which defines standards for both electromagnetic emissions and immunity.
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PRESSURE ADJUSTMENT Each individual patient may require special settings for the maximum positive (inhalation) and negative (exhalation) pressures. For a patient using this device for the first time, it is advisable to begin with lower pressures, such as 10-15 cm H2O positive and negative, to familiarize the patient with the feel of mechanical insufflation-exsufflation. During subsequent treatments, pressures can be increased as necessary to achieve adequate secretion clearance. See WARNING (page 4). Note that at these lower pressures the CoughAssist MI-E may have limited effectiveness in clearing secretions. Increasing pressures should improve the effectiveness.
11
1.
Turn on the power switch.
2.
Set the inhale flow to full or reduced.
3.
Attach the patient circuit to the unit and block the end of the breathing hose.
4.
Set the manual/auto switch to manual (automatic models only).
5.
Push the manual control lever to the exhalation phase (to the left). Observe the pressure gauge on the device and adjust the maximum pressure (negative) using the pressure knob to achieve the correct reading on the gauge.
6.
Shift the manual control lever to the inhalation phase (push to the right). Adjust the pressure reading by turning the inhale pressure knob to achieve the correct reading on the pressure gauge (clockwise to increase pressure and counterclockwise to decrease pressure).
7.
Cycle the manual control lever from inhale (positive) to exhale (negative) and back a few times to ensure that the pressure and suction readings are correct.
8.
Release the manual control lever to ensure that the pressure immediately returns to 0 cm H2O. If it does not, refer to the Maintenance Section of this guide.
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OPERATING PROCEDURE
TIMING ADJUSTMENT ( C A - 3 0 0 0 , C A - 3 2 0 0 M O D E L S O N LY ) If the automatic feature of the CoughAssist MI-E is to be used, adjust the times as follows: 1.
Each cough cycle consists of an inhalation phase, an exhalation phase and a pause phase, after which inhalation begins again. The time for each phase is set with the three knobs on the left side of the front panel. Normally, inhale time and exhale time are set to 1 to 3 seconds and the pause time can be set up to 5 seconds, or eliminated by setting the pause time knob to 0 seconds, depending on the patient’s preference.
2.
Set the manual/auto switch to the auto position and observe that the unit cycles from positive to negative pressure, then to zero pressure, and repeats until the switch is set back to manual. When set to the manual position, the unit should return to 0 cm H2O.
T R E AT M E N T Treatment usually consists of 4 or 5 coughing cycles in succession. The patient is then allowed to rest for 20 to 30 seconds, which helps avoid hyperventilation. The cycles can then be repeated 4 to 6 times for a full treatment.
WARNING: Always check time and pressure settings before each treatment. Manual Operation (All models): 1.
Attach the appropriate patient interface to the patient.
2.
Shift the manual/auto switch to the manual position (automatic models only). Shift the manual control lever to the inhale position (to the right) and observe the pressure gauge to see the pressure build slowly over 2 to 3 seconds.
3.
Rapidly shift the manual control lever to the exhale position (to the left) to induce the cough, holding it there for 1 to 2 seconds. The lever can then either be left in the neutral position for a few seconds, or can be shifted immediately to the positive pressure phase for another cough cycle, depending on the patient’s preference.
4.
After 4 to 5 cycles, remove the patient interface from the patient and allow time for a normal breathing pattern to return (20 to 30 seconds), or place the patient back on the ventilator if currently in use. Avoid prolonged periods connected to the device. During this resting period, clear secretions that may have become visible in the mouth, throat or tracheostomy tube.
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OPERATING PROCEDURE
Automatic Operation (CA-3000, CA-3200 models only): 1.
Attach the appropriate interface to the patient.
2.
To operate the unit automatically, set the manual/auto switch to the auto position. The unit will cycle from inhale (positive) to exhale (negative) to zero pressure, and back to inhale.
3.
After 4 to 5 cycles, set the manual/auto switch back to the manual position. Remove the patient interface from the patient and allow time for a normal breathing pattern to return (20 to 30 seconds), or place the patient back on the ventilator if currently in use. Avoid prolonged periods connected to the device. During this resting period, clear secretions that may have become visible in the mouth, throat or tracheostomy tube. CAUTION: This unit is designed for Intermittent Operation Only and not for continuous use. The device should not be cycled continuously for more than 5 minutes. After such time, the unit should either be turned off or left idling with the blower on for at least 5 minutes.
O P E R AT I O N V E R I F I C AT I O N ( A L L M O D E L S ) It is recommended that the CoughAssist MI-E be periodically tested to ensure that the cycling valve returns to the neutral, or pause, position after either the inhale or exhale phase. To determine this, follow these steps: 1.
Attach a patient circuit to the unit and block the end of the hose.
2.
Turn the power switch ON.
3.
Set the manual/auto switch to the manual position (automatic models only).
4.
Set the pressure knob fully clockwise (maximum pressure).
5.
Cycle the manual control lever from inhale to exhale and observe the pressure gauge to ensure that positive and negative pressure is being applied to the patient circuit.
6.
Release the manual control lever from the inhale position and observe that the pressure immediately drops to 0 cm H2O. Repeat for the exhale position. In either case, if the pressure does not drop to zero, the unit should be returned for repair.
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SECTION 6
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CLEANING & DISINFECTION
PAT I E N T C I R C U I T Institutional (hospital) Use: 1.
Breathing Hose, Patient Interface and Adapters: If the device is to be used by more than one patient, the circuit must be replaced.
2.
Bacterial/Viral Filter: If the device is to be used by more than one patient the filter must be replaced to prevent cross contamination. Do not try to wash the filter.
NOTE: The patient circuit should not be sterilized for reuse. Home (individual) Use: 1.
Breathing Hose, Patient Interface and Adapters: After use, the breathing hose and patient interface should be washed thoroughly in soap and water. These parts must be completely dry before reuse.
2.
Bacterial/Viral Filter: The filter, which protects the device from entraining foreign material from the patient, can be left in place as long as it is not blocked by sputum or trapped moisture. Do not try to wash the filter.
NOTE: The patient circuit should not be sterilized.
EXTERNAL HOUSING The exterior of the pump and housing may be washed with a mild detergent and water, or with a bactericidal cleaning solution such as 70% isopropyl alcohol.
CAUTION: Do not sterilize with ethylene oxide gas or steam sterilize the pump or pump housing.
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SECTION 7 Back to top
ACCESSORIES The following replacement accessories may be obtained from J.H. Emerson Co.
CoughAssist MI-E Patient Circuit The CoughAssist MI-E Patient Circuit consists of one 3-foot long flexible smooth bore tube, a bacterial/viral filter, an adult facemask and an adapter.
Part No. 325-9217
Breathing Hose 3-foot long flexible smooth bore tubing with 22mm interior diameter.
Part No. 732-1136
NOTE: Corrugated tubing may cause a small reduction in flow rates as well as cause a whistling sound. The use of tubing greater than 3-feet in length may cause a small reduction in flow rates as well.
Bacterial/Viral Filter Bacterial/Viral filter.
Part No. 740-1006
Part No. 740-1008 Facemask and Adapter Facemask and Adapter, 22mm outside diameter x 22mm outside diameter.
15
Part No. 740-1007
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SECTION 8
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PREVENTIVE MAINTENANCE & TROUBLESHOOTING GUIDE PREVENTIVE MAINTENANCE This device has been designed to provide virtually maintenance-free operation for extended periods of time. Sharp blows to the unit or dropping the unit is to be avoided. No routine maintenance is required.
GENERAL SUGGESTIONS 1.
Keep the unit’s exterior clean.
2.
Check that the air intake ports are not blocked.
3.
Keep the CoughAssist MI-E away from curtains, blankets or any heat generating device.
WARNING: Do not remove the cover; there are no serviceable parts inside the unit. Refer all service to authorized personnel.
Technical Information: J.H. Emerson Co. will make available on request a list of all repairable exterior parts with descriptions. Interior schematics and circuit diagrams will be made available to qualified technical personnel only.
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TROUBLESHOOTING GUIDE 1.
Pressure Gauge Adjustment: If the pressure gauge does not go to “0” when the device is turned off it must be readjusted. Remove the adhesive cover over the pressure gauge zero adjust and turn the adjust screw to “0” using a screwdriver. If unable to make this adjustment, the unit should be returned for servicing.
2.
Fuse Replacement: If the unit is connected to the proper power source and the green light within the power switch does not illuminate when the switch is actuated, one or both of the two safety fuses may have blown. The procedure for replacement of a blown fuse is as follows: a.
Disconnect the unit from any power outlet and disconnect the power cord from the receptacle on the rear of the unit (see Back Panel diagram on page 9).
b.
Locate the access door on the receptacle labeled with the symbol: . Open the access door by prying the latch at the top with a small screw driver or fingernail. Pivot the door down to reveal the two fuse holders.
c.
Press each of the two spring clips to the side (the left one to the left, the right one to the right) and slide both fuse holders out of the receptacle.
d.
Inspect both fuses and replace, if necessary, with fuses with equivalent ratings, as shown on the rear Product Label Description (page 9). To replace a fuse, slide the damaged one out of the holder and slide the new fuse in its place.
e.
Reinsert each fuse and holder into the receptacle, close the access door and reconnect the power cord.
Door Latch
Spring Clip
Spring Clip
Fuse Holder
Fuse Holder Access Door
17