CPAP Machine Product

Overview

A CPAP machine treats obstructive sleep apnea, where the throat collapses during sleep and interrupts breathing. It works by acting as a pneumatic splint: a blower delivers room air at a steady positive pressure through a hose and mask, and that pressure holds the upper airway open so the sleeper breathes without the repeated obstructions, oxygen dips and arousals that define the disease. Modern units also log every night of therapy for the clinician to review.

The machine is built around a quiet, precisely controlled fan plus a humidifier. The Blower Assembly is the pressure source; the Flow & Pressure Sensors measure what it delivers and how the patient breathes; the Heated Humidifier conditions the air; and the Control Board with the Display Panel ties it together and stores the data. Room air enters through the Inlet Air Filter and leaves through the Outlet Connector to the mask.

How it works

Pressure is made by the Blower Assembly. A lightweight Centrifugal Impeller spun by a high-speed brushless Blower Drive Motor raises air pressure in a scroll Volute Housing, and a foam Acoustic Muffler keeps it near-silent for the bedroom. The therapy pressure is set by the impeller's speed, not a throttle, so the Control Board holds the target by adjusting motor rpm thousands of times a second.

Closing that loop is the job of the Flow & Pressure Sensors. A Pressure Sensor reads delivered pressure while a Mass Flow Sensor tracks the patient's breathing. From flow the firmware separates real inhalation from the constant intentional mask leak, detects apneas and snores, and on auto-adjusting units raises or lowers pressure breath by breath. A pressure-relief feature eases pressure on exhalation for comfort.

The Heated Humidifier passes the air over a heated Water Chamber; its Heating Element is guarded by a Thermal Fuse against dry-out and overheat. The Control Board pairs a Compute SoC Module for data logging and wireless upload with a real-time Microcontroller for the blower and heater, and the Display Panel handles setup, ramp and humidity settings. A 24 V Power Supply feeds the whole unit from mains.