WM 67841f 01/2019
EN | 5
1 Introduction
1.3 User qualifications
The person operating the device is referred to in these instructions for use as the
"user". In contrast, a "patient" is the person receiving the therapy. Always perform all
the operating steps in accordance with these instructions for use.
1.4 Indications
prisma20C
CPAP therapy device for the treatment of patients with obstructive sleep apnea with
a constant pressure requirement.
prisma20A
APAP therapy device for the treatment of patients with obstructive sleep apnea with
a variable pressure requirement. The therapy pressure adjusts automatically to suit the
patient's pressure requirement.
prismaCR
Therapy device for the treatment of patients with periodic breathing or Cheyne-Stokes
respiration (e.g., in cases of heart failure) as well as with central, mixed, or complex
sleep apnea. The therapy device adjusts the ventilation automatically and continually
to the changing requirements of the patient.
prisma25S
BiLevel therapy device for the treatment of patients with obstructive, mixed, or
complex sleep apnea, and a high and/or fluctuating pressure requirement, poor CPAP
compliance The device has different pressure levels during inspiration and expiration.
prisma25S-C
BiLevel therapy device for the treatment of patients with obstructive, mixed, or
complex sleep apnea and a high pressure requirement, poor CPAP compliance The
device has different pressure levels during inspiration and expiration.
prisma25ST
BiLevel therapy device for the treatment of patients with obstructive, mixed, or
complex sleep apnea and a high and/or fluctuating pressure requirement, poor CPAP
compliance, central apneas, sleep-related or position-dependent hypoventilation (e.g.,
OHS), respiratory insufficiency, coprevalent respiratory insufficiency (e.g., COPD/
overlap). The device has different pressure levels during inspiration and expiration and
a backup frequency for the treatment of central events.
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