Android · Weinmann / Löwenstein Prisma

Prisma CPAP Data.
No Cloud Required.

Plug your Löwenstein Prisma CPAP into your Android phone via USB. PrismaBridge reads your machine configuration and therapy sessions directly — then routes them to OSCAR and SleepHQ automatically.

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How It Works

A direct USB cable is all it takes to unlock your Prisma therapy data.

1

Connect via USB

Plug your Prisma device into your Android phone or tablet via a USB OTG adapter. NiteBridge requests access permission and detects the device automatically.

2

Import Config & Sessions

PrismaBridge locates your config.pcfg and therapy.pdat files, reads device metadata and machine settings, and discovers all available therapy sessions by date.

3

Sync & Analyse

Newly discovered sessions are exported to OSCAR and uploaded to SleepHQ automatically. Reconnect weekly — only new sessions sync each time, so it's fast.

4

Track Changes

If your clinician adjusts your pressure settings, PrismaBridge detects configuration changes on your next sync and flags what changed — keeping you informed of your own therapy adjustments.

What PrismaBridge Does

Direct access to your device — no proprietary cloud account, no SD card removal.

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USB Direct Access

Android's USB mass storage API gives NiteBridge direct read access to your Prisma SD card without any cloud service, manufacturer account, or intermediary. Your data stays between you and your analysis tools.

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Machine Configuration

PrismaBridge decodes your device.xml configuration file — extracting your machine model, serial number, firmware version, therapy mode (CPAP/Auto), pressure range, ramp time, and humidifier level.

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Session-by-Session History

Therapy sessions are stored one per night inside the therapy.pdat archive. PrismaBridge scans all available dates and imports each session individually — complete therapy history from day one.

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Incremental Re-Sync

Reconnect the same device and PrismaBridge recognises it by serial number. Only sessions added since the last sync are imported — so weekly syncs take seconds, not minutes.

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Configuration Change Detection

Prescription changes made by your clinician show up on your next sync. PrismaBridge compares the new configuration against the saved baseline and surfaces any differences — so you always know what changed.

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No Manufacturer Account

No Löwenstein cloud login, no third-party registration. PrismaBridge reads directly from the device you own. All data stays on your phone until you choose to send it to OSCAR or SleepHQ.

Data Decoded from Your Prisma

Everything PrismaBridge extracts from your device files.

Machine Configuration

Device model & series
Serial number
Firmware version
Hardware version
Therapy mode (CPAP / AutoCPAP)
Minimum & maximum pressure
Ramp time & ramp pressure
Humidifier level

Therapy Sessions

Session date & duration
Events log (per session)
Waveform data
Parameter log
Pressure delivery trace
Leak rate measurements
Respiratory event markers
Session summary statistics

Supported Devices

Initial support targets the Prisma 20A. Additional models are in the roadmap.

Prisma 20A

Supported

Prisma 25S

Coming Soon

Prisma 25ST

Coming Soon

SOMNObalance

Coming Soon

Requirements

What you need to get started.

Unlock Your Prisma Data

PrismaBridge is part of the NiteBridge app for Android. Contact us to get started.

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