Claims:1. A Continuous Positive Airway Pressure (CPAP) device (100) comprising:
a stabilizing unit (102) comprising:
a first inlet port (108) to receive an input airflow at a variable flow rate;
a pressure stabilizer (110) for stabilizing pressure of the input airflow, wherein the pressure stabilizer (110) receives the input airflow through the first inlet port and absorbs variations in the pressure of the input airflow by expansion or contraction to provide a continuous airflow at controlled pressure; and
a flow meter (112) to receive the air from the pressure stabilizer (110) and to provide a regulated flow rate of an output airflow based on a preset flow rate through an outlet port of the stabilizing unit (102);
a nasal cannula (120) connected to the outlet port of the stabilizing unit (102) to receive the output airflow; and
a valve (122) connected to the nasal cannula (120) to maintain a Positive-end Expiratory Pressure.
2. The CPAP device (100) as claimed in claim 1, further comprises a first gas source unit (104) connected to the inlet port (108), wherein the first gas source unit (104) is manually operated to provide the input airflow at the variable flow rate.
3. The CPAP device (100) as claimed in claim 2, wherein the first gas source unit (104) includes a venturi to receive gas from an oxygen cylinder and a piston pump assembly and provide the mixture of oxygen and air to the stabilizing unit (102).
4. The CPAP device (100) as claimed in claim 2, wherein the first gas source unit (104) is one or more of a piston pump assembly, bag valve mask, and a foot pump.
5. The CPAP device (100) as claimed in claim 2, further comprises a one-way valve between the stabilizing unit (102) and the first gas source unit (104).
6. The CPAP device (100) as claimed in claim 1, wherein the stabilizing unit (102) comprises a second inlet port (134) to receive an airflow.
7. The CPAP device as claimed in claim 6 further comprises a E-module (128), wherein the E-module (128) comprises:
a battery (132); and
a second gas source unit (130) powered by the battery (132) and connected to the second inlet port for providing a continuous airflow at controlled pressure.
8. The CPAP device (100) as claimed in claim 7, wherein the second gas source unit (130) comprises at least one of an air compressor or an air pump.
9. The CPAP device (100) as claimed in claim 1, further comprises a third gas source unit, wherein the third gas source unit comprises an oxygen cylinder or a compressed gas source.
10. The CPAP device (100) as claimed in claim 1, wherein the flow meter (112) comprises:
a flow control valve to control the flow rate of the output airflow; and
an actuator to actuate the flow control valve based on the preset flow rate.
11. The CPAP device (100) as claimed in claim 1, wherein the pressure stabilizer (110) comprises:
a first opening to receive the input airflow; and
a second opening to discharge a continuous airflow.
12. The CPAP device (100) as claimed in claim 11, wherein the stabilizing unit (102) comprises a pressure relief valve (114) connected to the second opening of the pressure stabilizer (110) to reduce excess pressure in the CPAP device (100).
13. The CPAP device (100) as claimed in claim 1, wherein the stabilizing unit (102) comprises a pressure gauge (116) connected to the flow meter (112) to measure pressure of the output airflow.
14. The CPAP device (100) as claimed in claim 1, wherein the valve (122) is a pressure control valve connected to the nasal cannula (120) to maintain the positive end expiratory pressure of 5 cm of H2O.
15. The CPAP device (100) as claimed in claim 14, wherein a humidifier is connected to the pressure control valve to humidify the output airflow.
16. A method for providing a Continuous Positive Airway Pressure (CPAP), the method comprising:
selecting a gas source unit (104, 130);
supplying, by a first gas source unit (104), an input airflow having a variable flow rate to a pressure stabilizer (110) when the first gas source unit (104) is selected;
stabilizing, by the pressure stabilizer (110), the input airflow by expansion and contraction to absorb variations in pressure and provide a continuous airflow at controlled pressure;
generating, by a flow meter (112), a regulated flow rate of an output airflow based on a preset flow rate;
transferring, by nasal cannula (120), the output airflow generated by the flow meter (112) to a patient; and
maintaining, by a valve (122), a pressure equivalent to the Positive-end expiratory pressure.
17. The method as claimed in claim 16, wherein a constant flow rate input airflow is provided by an air compressor or air pump when a second gas source unit (130) is selected.
18. The method as claimed in claim 16, wherein a constant flow rate input airflow is provided by an oxygen cylinder or compressed gas source when a third gas source unit is selected.
19. The method as claimed in claim 16, wherein the input airflow is supplied by manually operating the first gas source unit (104) connected to the pressure stabilizer (110).
20. The method as claimed in claim 16, wherein the expansion and contraction of the pressure stabilizer (110) absorbs excess pressure applied by the input airflow.
21. The method as claimed in claim 16, wherein the regulated flow rate of the output airflow is generated through an aperture of the flow meter (112).
22. The method as claimed in claim 16, wherein the positive-end expiratory pressure is maintained by the valve (122) by controlling flow of air exhaled from the lungs.
, Description:As Attached