Weinmann BiLevel ST 22 Description Of Unit And Instructions For Use
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Weinmann BiLevel ST 22 Description Of Unit And Instructions For Use

Ventilation and sleep therapy device
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BiLevel ST 22
Ventilation and Sleep Therapy Device
BiLevel ST 22
Description of unit and instructions for use

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Summary of Contents for Weinmann BiLevel ST 22

  • Page 1 BiLevel ST 22 Ventilation and Sleep Therapy Device BiLevel ST 22 Description of unit and instructions for use...
  • Page 2 Overview BiLevel ST 22 1 Bacteria filter 11 Drying adapter 17 Hood 2 Power supply 16 Nasal mask 3 Power supply cable 15 Exhalation system 10 Sealing plugs (2x) 4 Cable securing clip 9 Unit outlet 14 Hose system 5 Handle...
  • Page 3 19 Filter compartment lid, air inlet luation purposes. Covers and securely holds the coarse and fine 7 Control panel and display dust filters. For controlling and monitoring the BiLevel ST 22 20 Mains connection/connection for and the connected accessories. battery VENTIpower 8 Humidifier connection...
  • Page 4 Available as an accessory, used to supply oxygen doctor. to the nasal mask. 29 VENTIpower (Accessories) Available as an accessory, provides a mains-inde- pendent power supply for BiLevel ST 22. Standard display during therapy: 1 Status line 2 Soft start symbol Active...
  • Page 5 Symbols used in the display Symbol Meaning Status line: Soft start active, remaining time highlighted Filter change necessary Service required Main window: Medium priority alarm triggered Abbreviations used in the display Symbol Meaning Status line: S mode active T mode active ST mode active CPAP CPAP mode active...

  • Page 6: Table Of Contents

    Accessories....16 Operation ....19 BiLevel ST 22 startup ..19 Activate/deactivate the auto switch-on .

  • Page 7: Description Of Unit

    When used as a breathing apparatus, BiLevel ST 22 complies with EN ISO 10651-6 (ventilatory support units). 1.2 User qualification The settings on BiLevel ST 22 may only be set by a doctor and to suit the individual patient. Description of unit...

  • Page 8: Functional Description

    Therapy modes BiLevel ST 22 can be operated in four therapy modes: S, T, ST, CPAP. Your doctor will set the mode required for your therapy on the unit. In the time-controlled mode T and the assisted-controlled mode ST your doctor can adjust the respiratory rate to within a range of 6 to 45 breaths per minute and the inspiration time to within a range of 20 % to 67 % of the respiratory cycle.

  • Page 9: Safety Instructions

    • Always secure the mains socket on the power supply using the cable securing clip to prevent unintentional removal of the plug. • BiLevel ST 22 must be connected to an easily accessible socket, so that in the event of a failure, the mains plug can be quickly removed.
  • Page 10 Caution! • Do not transport the BiLevel ST 22 with the VENTIclick humidifier installed. Tilting might cause any water remaining in the VENTIclick to run into the BiLevel ST 22 and damage it. • If third-party items are used, functional failures may occur and fitness for use may be restricted.

  • Page 11: Contraindications

    2.2 Contraindications The BiLevel ST 22 should not be used if the patient is suffering from one of the following illnesses (or only with particular caution). In each case the decision whether to use BiLevel ST 22 for therapy lies with the doctor in charge.

  • Page 12: Side Effects

    2.3 Side effects When using BiLevel ST 22 the following undesirable side effects may occur during short- term and long-term usage: • Pressure points on the face caused by the nasal mask and the forehead padding • Reddening of the skin on face •...

  • Page 13: Special Markings On The Unit

    2.4 Special markings on the unit Front Unit outlet: emission of ambient air at 4 - 22 hPa Socket: electrical connection for the VENTIclick humidifier, WM 24365; Max. power consumption at 40V: 600 mA Back Service label: indicates when the next service is due. Unit inlet: allows air at room temperature to enter Voltage supply with power supply WM 24790: 12 V/40 V DC Connection for mains-independent operation with VENTIpower, WM 24100...
  • Page 14 Name plate Do not dispose of the unit as domestic waste! Protection class B Type of protection against electric shock: unit of protection class Year built Refer to Operating Instructions CE 0197 symbol: Confirms that the product conforms to the applicable European directives IPX1 Degree of protection against penetration by water (drips)

  • Page 15: Setting Up The Unit

    1. Plug the power supply cable into the supply connec- tion of the BiLevel ST 22. Then plug the power supply into a socket outlet (using the power supply cable). Note...

  • Page 16: Fitting The Mask

    3.2 Fitting the mask BiLevel ST 22 is designed for operation with nasal, oronasal and full face masks. To fit the nasal mask, proceed as follows: 1. Adjust the forehead support (if fitted) of the mask. 2. Connect the headgear to the mask and put the mask on.
  • Page 17 The introduction of oxygen for the BiLevel ST 22 is only permitted using the VENTI-O oxy- gen valve. This valve enables up to 4 l/min of oxygen to be introduced. If there is a fault, the VENTI-O releases the oxygen into the atmosphere.
  • Page 18 Bacteria filter If BiLevel ST 22 is to be used by several patients (e.g. in a hospital), the WM 24148 bacteria filter must be used to protect against infection. It is connected between the hose system and the BiLevel ST 22 or VENTIclick. Also re- fer to the Operating Instructions supplied with the bacte- ria filter.

  • Page 19: Operation

    . If auto switch-on is acti- vated, you can also put on the mask and turn BiLevel ST 22 on by breathing (see "4.2 Activate/ deactivate the auto switch-on" on page 20). The operating hours and the Weinmann software ver- sion appear for approx.

  • Page 20: Activate/Deactivate The Auto Switch-On

    4.2 Activate/deactivate the auto switch-on If auto switch-on is activated, you can turn on BiLevel ST 22 using the On/Off switch or by “breathing”. You can only turn off BiLevel ST 22 using the On/Off switch Activate auto switch-on 1.

  • Page 21: Setting Soft Start

    Deactivate auto switch-on Repeat steps 2.–5. as described in „ Activate auto switch-on“. If auto switch-on is switched off, you will only be able to turn BiLevel ST 22 on using the key 4.3 Setting Soft start If your doctor has enabled the Soft start function, the Soft start time can be selected in 5- minute increments up to a maximum time of 30 minutes.

  • Page 22: Setting The Humidifier

    Note BiLevel ST 22 starts automatically in Soft start mode if this was activated when the unit was last used. Soft start can be switched on and off at any time by briefly pressing the Soft start key 4.4 Setting the humidifier...

  • Page 23: After Usage

    Remember as well to take replacement filters and all the Operating Instructions with you. If you want to take BiLevel ST 22 with you on a flight, please make sure you are familiar with the necessary regulations before departure. An air transportation certificate can be obtained from Weinmann.

  • Page 24: Hygienic Preparation

    5. Hygienic preparation This product may contain disposable items. Disposable items are intended to be used only once. So use these items only once and do not reprocess them. Reprocessing dispos- able items may impair the functionality and safety of the product and lead to unforeseeable reactions as a result of ageing, embrittlement, wear, thermal load, the effects of chemical processes, etc.

  • Page 25: Cleaning

    Press the dial to start the drying process. The unit will now dry the hose system. The remaining drying time is displayed. After 30 min- utes BiLevel ST 22 automatically switches off. You can interrupt the process at any time by pressing the Menu key or the On/Off switch for 2 seconds.
  • Page 26 • Risk of electric shock! Before cleaning, disconnect the power supply cable from the power input of the BiLevel ST 22 and the mains plug from the socket. • Make sure no liquid gets into the unit. Never immerse the unit in disinfectant or any other liquid.

  • Page 27: Disinfection And Sterilization

    After disinfecting rinse all the parts thoroughly with distilled water. Let the parts dry out completely. Let the hose system drip-dry. Dry the hose system and BiLevel ST 22 as described in 5.2. • The corrugated tube WM 24130 (transparent) can be cleaned in warm water up to 70 °C.

  • Page 28: Multiple Patient Use

    5.4 Multiple patient use If the unit is operated with bacteria filters: • Change the bacteria filter. • Sterilize the bacteria filter and change the particle filters located inside. If the unit is operated without bacteria filters: • have the unit subjected to hygienic preparation by a dealer on change of patient. Hygienic preparation...

  • Page 29: Functional Check

    BiLevel ST 22 until the defect has been remedied. 6.2 Execution 1. Assemble BiLevel ST 22 with the hose system, exhalation system and power supply cable ready for operation. 2. Close the opening of the hose system, e.g. using your thumb or hand.
  • Page 30 Pressure accuracy 1. Wait for approx. 1 minute, then read the CPAP pressure on the display or the IPAP and EPAP pressure readings on the bar graph and check whether the values displayed corre- spond to the prescribed values. Respiratory rate/minimum frequency Note This check is unnecessary if the device is operated in CPAP mode.
  • Page 31 Soft start Note This check is unnecessary if Soft start has been disabled by the doctor. 1. Turn Soft start on by pressing the Soft start key The Soft start display appears and the Soft start time is displayed. Flow sensor/Pressure sensor 1.
  • Page 32 (see also "7. Troubleshooting" on page 33). 1. Check the buzzer and the status displays: Each time you turn the BiLevel ST 22 on, check that you can hear the buzzer and that the status display lights up.

  • Page 33: Troubleshooting

    7. Troubleshooting 7.1 Malfunctions Malfunctions/ Malfunction Cause Rectification message No operating Check that power supply and power sup- sound, No supply voltage ply cables are securely connected. Check Nothing on the dis- available. outlet is working by connecting another play piece of equipment (e.g.

  • Page 34: Alarms

    Weinmann or a dealer as soon as pos- appears sible. If there are defects that cannot be rectified at once, please contact Weinmann or your dea- ler immediately to have the unit repaired. To avoid greater damage, do not use the unit. 7.2 Alarms The BiLevel ST 22 only issues medium priority alarms.
  • Page 35 The standard display appears again after acknowledging the acoustic alarm. If the fault has not been rectified, the status line continues to be displayed and the yellow sta- tus display flashes (or is illuminated) until the fault is cle- ared. If the fault has not been rectified within 120 seconds of acknowledgement, the acoustic alarm (buzzer) sounds again.
  • Page 36 If there are defects that cannot be rectified at once, please contact Weinmann or your dea- ler immediately to have the unit repaired. To avoid greater damage, do not use the unit. Troubleshooting...

  • Page 37: Maintenance

    8. Maintenance 8.1 Intervals We recommend that repairs are only carried out by Weinmann or by authorized dealers. Both filters must be regularly checked for contamination. • Clean the coarse dust filter once a week and replace it at least every 6 months.

  • Page 38: Filter Change

    8.2 Filter change Change coarse dustfilter Only use original Weinmann filters. Claims under warranty will be forfeited if filters from outside manufacturers are used; these may also restrict function and biocompatibility. 1. If the humidifier VENTIclick is connected, first disconnect it from the unit. This prevents water running into the unit during a filter change.
  • Page 39 1. Press on the lock of the filter compartment lid and re- move the lid. 2. Replace the fine filter with a new fine filter WM 15026. Dispose of the old filter in the normal domestic waste. 3. Then put the filter compartment lid lower edge first into the encasing section.

  • Page 40: Change The Pressure Measurement Hose

    8.3 Change the pressure measurement hose 1. Remove the sleeve of the corrugated tube from the Adapter adapter. 2. Pull the pressure measurement hose out of the corrugated tube. 3. Pull the pressure measurement hose away from the adapter. Sleeve Pressure measurement hose 4.

  • Page 41: Scope Of Supply

    Patient record 66165 9.2 Accessories and spare parts You can order accessories and spare parts separately if required. A current list of accessories and spare parts can be ordered on the Internet at www.weinmann.de or via your dealer. Scope of supply...

  • Page 42: Technical Data

    10. Technical data BiLevel ST 22 with BiLevel ST 22 VENTIclick Product class as per EU Directive 93/42/EEC Dimensions WxHxD in cm 23 x 12 x 28 23 x 12 x 39.5 Weight approx. 3.7 kg approx. 4.0 kg Temperature range –...
  • Page 43 BiLevel ST 22 with BiLevel ST 22 VENTIclick IPAP pressure range 6 to 22 hPa EPAP pressure range 4 to 20 hPa CPAP pressure range 4 to 20 hPa Pressure accuracy ±0.6 hPa Increment 0.2 hPa (1 hPa = 1mbar ≈ 1 cm H...
  • Page 44 BiLevel ST 22 with BiLevel ST 22 VENTIclick Maximum flow rate to EN ISO 17510-1:2009 at: 20 hPa 210 l/min 193 l/min 16 hPa 220 l/min 205 l/min 12 hPa 225 l/min 212 l/min 8 hPa 235 l/min 219 l/min...

  • Page 45: Pneumatic Diagram

    Permitted humidity for operation ≤ 95 % rF (no condensation) and storage BiLevel ST 22 with O hose BiLevel ST 22 with hose system system WM 23737, VENTIclick WM 24130 and Silentflow System resistance with an air WM 24365 and bacteria filter...

  • Page 46: Safety Distances

    0.11 0.22 0.35 0.35 0.70 1.10 1.10 2.20 3.50 3.50 7.00 Further technical data can be obtained on request from Weinmann and are listed in the hospital manual and the Service and Repair Instructions. Subject to design modifications Technical data...

  • Page 47: Warranty

    – Failure to use original spare parts • Weinmann is not liable for consequential harm caused by a defect if it is not not based on intention or gross negligence. Weinmann is also not liable for minor physical injury to life or limb resulting from negligence.

  • Page 48: Declaration Of Conformity

    12. Declaration of Conformity Weinmann Geräte für Medizin GmbH + Co. KG declares herewith that the product com- plies fully with the respective regulations of the Medical Device Directive 93/42/EEC. The unabridged text of the Declaration of Conformity can be found on our website at www.weinmann.de...

  • Page 49: Index

    13. Index Accessories Alarms Auto switch-on Carrying bag Cleaning Disinfection Dry the hose system. Exhalation system Filter Functional check Garantie Inspection Inspiration time Malfunctions Nasal mask Respiratory rate Safety instructions Side effects Soft start Technical data Therapy mode Traveling VENTIclick VENTI-O2 VENTIpower Index...
  • Page 52 Weinmann Geräte für Medizin GmbH+Co.KG Postfach 540268 • D-22502 Hamburg Kronsaalsweg 40 • D-22525 Hamburg T: +49-(0)40-5 47 02-0 F:+49-(0)40-5 47 02-461 E:info@weinmann.de www.weinmann.de Center for Production, Logistics, Service Weinmann Geräte für Medizin GmbH+Co.KG Siebenstücken 14 D-24558 Henstedt-Ulzburg T: +49-(0)4193-88 91-0...

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