Please note: A BiPAP machine can only be bought with a current, detailed prescription from a respiratory consultant experienced with home mechanical ventilation. This includes, but is not limited to: Pneumologists, Somnologists, Neurologists, Psychologists in Sleep Medicine, Cardiologists and Internists.

BiLevel (BiPAP) ST 22 by Weinmann

BiLevel ST 22 efficiently, comfortably and economically combines ventilation therapy for sleep-related respiratory disorders and respiratory insufficiency. For cases of mixed apnea, Cheyne-Stokes respiration, adipose hypoventilation syndrome or mild COPD, a specially designed range of ventilation modes and parameters plus the connection to polysomnograph systems make titration with BiLevel ST 22 very easy.

The overview of ventilation statistics and patient compliance data in the large display along with the device‘s simple operation help to increase patient acceptance and to reduce the work of clinic personnel.

Home Mechanical Ventilator

BiLevel ST 22 is a home mechanical ventilator for non-invasive, non-life-supporting ventilation of adult patients with respiratory insufficiency who can breathe on their own. This description corresponds to the following clinical scenarios:

• Restrictive and obstructive ventilation disorders, e.g., OSAS, COPD, Adipose Hypoventilation Syndrome
• Disorders of respiratory mechanics, e.g., scoliosis, thoracic deformity
• Neurological, muscular and neuromuscular disorders, e.g., diaphragmatic paresis.
• Central respiratory regulation disorders

What is BiLevel Therapy?

BiLevel ventilators provide a splinting of the patient's upper airways for the treatment of obstructive sleep apnea. Furthermore, they care for the patient with the necessary tidal volume and offer back-up ventilation when spontaneous breathing is interrupted by central apnea. The difference between device versions is as follows. While BiLevel S is controlled by the patient (so-called "triggered-ventilator"), the BiLevel ST device is machine-controlled.

With a BiLevel S (S for spontaneous) device or therapy mode, breathing support is initiated and terminated by the patient's spontaneous breathing. Compared to CPAP ventilation, this type of support also features a comfortable pressure reduction during exhalation. A fixed low background frequency guarantees safe ventilation when apnea events last longer than 10 seconds.

BiLevel ST (ST = spontaneous-timed) devices like the BiLevel ST 22 distinguish themselves further by an adjustable background ventilation that is activated when spontaneous breathing ceases. This combination of patient-controlled and machine-controlled operation provides sufficiently safe ventilation in cases of mixed apnea or Obesity Hypoventilation Syndrome and considerable unloading of the patient's respiratory musculature.

BiLevel Therapy Effects

BiLevel (or BiPAP) ventilation therapy with the Weinmann BiLevel ST 22 is designed to bring a range of benefits to the patient:

• Amelioration of respiratory insufficiency through optimization of ventilation
• Consistent reduction of hypoxemia and hypercapnia
• Regulation of hypoventilation and hyperventilation
• Reduction of apnea and hypopnea
• Improvement of disease symptoms such as morning headache, daytime sleepiness, concentration difficulty
• Increase in quality of life

Therapy Comfort

The Weinmann BiLevel ST 22 features several therapy modes to facilitate a variety of patients' needs. Therapy comfort is ensured with functionality designed to increase patient compliance and acceptance.

• Therapy modes CPAP, BiLevel S, BiLevel ST and BiLevel T
• Softstart function in all modes
• Separate settings for inspiration and expiration triggers
• Expiration trigger in ST mode can be turned off (corresponds to aPCV)

Optimum Titration and Therapy Monitoring

• Display of ventilation statistics and patient compliance on the device itself
• Display of changes between spontaneous and mandatory respiratory phases
• Transfer of up to eight ventilation signals into conventional polysomnograph systems via the Weinmann Analogbox
• Remote control via SOMNOadjust or VENTIsupport software

Safety for All Patients

• Alarms for disconnection, power loss and device error
• Filter system with high filtration efficiency (99.7%) and longer lifetime (1000 hrs.)
• Bacteria filter system for change of patient in titration use

Ease-of-Use: Self-Explanatory Operation

• Multi-lingual scroll-through menus in the VENTI product line and selection knob for the most significant parameters
• Convenient setting options in offline or online operation (with fan switched on)
• Large display of all parameters and patient data

Therapy Modes & Parameters

• Ventilation modes: CPAP, BiLevel S, ST and T
• IPAP pressure of 6 to 22 hPa (» mbar » cm H2O)
• EPAP pressure of 4 to 20 hPa
• Variable pressure increase and decrease speeds (1-6)
• Separately set trigger sensitivity for inspiration and expiration
• Expiration trigger in ST mode can be deactivated (corresponds to aPCV mode)
• Softstart separate for IPAP and EPAP start pressure in all modes
• Respiratory rate of 6 to 45 /min.
• Safe background frequency in S mode of 6/min. in cases of central apnea
• I:E ratio of 20% to 67 % of respiration period
• Monitoring and data import of ventilation parameters including inspiration and expiration trigger frequency in %
• Device system alarms for disconnection, power loss, excessive pressure, etc.

Quiet Operation

One of the features patients using the Weinmann BiLevel ST 22 love most is its exceptionally low sound level (26 dB(A) at 10 hPa). With noise levels this low, falling asleep becomes easy again and your partner won't be disturbed either.

Not for Life-Support

Please Note: The BiLevel ST 22 is not suitable for life-support use.