Device for generating a continuous positive airway pressure (CPAP device)
The present invention provides a device for generating a continuous positive airway pressure (CPAP device), in particular a nasal CPAP device (nCPAP device), with a hollow body ( 10 ) in which an overpressure can be built up; with a first opening ( 20 ) provided in a first side wall of the hollow body ( 10 ) and used for introduction of a respiratory gas flow (A) directed into the hollow body ( 10 ) and for removal of the exhaled respiratory gas flow (B); and with an attachment piece ( 30 ) which can be fitted on the hollow body ( 10 ) in order to connect the hollow body ( 10 ) to a nosepiece and/or mouthpiece ( 100 ). A second opening ( 71 ) is provided in a second side wall of the hollow body ( 10 ) and is used for introduction of a medicament flow (M) directed into the hollow body ( 10 ).
1. Device for generating a continuous positive airway pressure (CPAP device), in particular a nasal CPAP device (nCPAP device), with:
a hollow body ( 10 ) in which an overpressure can be built up;
a first opening ( 20 ) provided in a first side wall of the hollow body ( 10 ) and used for introduction of a respiratory gas flow (A) under said overpressure directed into the hollow body ( 10 ) and for removal of the exhaled respiratory gas flow (B); and
an attachment piece ( 30 ) which can be fitted on the hollow body ( 10 ) in order to connect the hollow body ( 10 ) to a nosepiece and/or mouthpiece ( 100 );
characterized by
a second opening ( 71 ) provided in a second side wall of the hollow body ( 10 ) and used for introduction of a medicament flow (M) directed into the hollow body ( 10 ).
2. Device according to claim 1 , characterized in that a spacer ( 40 ) is provided which can be fitted on the hollow body ( 10 ) and on which a flow nozzle ( 50 ) for directing the respiratory gas flow (A) to the first opening ( 20 ) can be arranged,
the hollow body ( 10 ) basically has the shape of a hollow cylinder on whose one end surface ( 10 a ) the attachment piece ( 30 ) can be fitted and on whose circumferential surface the first and second openings ( 20 ; 71 ) are provided,
the first and second openings ( 20 ; 71 ) lie at approximately the same height, so that the respiratory gas flow (A) directed into the hollow body ( 10 ) and the medicament flow (M) directed into the hollow body ( 10 ) at least partially intersect in an area ( 80 ) before they impact the inner wall, and
a pipe ( 90 ) is inserted into the second opening ( 71 ) and projects so far into the inside of the hollow body ( 10 ) that it forms a break-up edge in the interior with an offset to the wall of the hollow body for the respiratory gas flow (A) directed into the hollow body ( 10 ).
3. Device according to claim 2 , characterized in that the pipe ( 90 ) can be plugged in.
4. Device according to claim 1 , characterized in that the second opening ( 71 ) can be closed off by a closure means, preferably a lid or slide.
5. Device according to claim 2 , characterized in that the first and second openings ( 20 ; 71 ) are arranged at an acute angle to one another on the circumferential surface.
6. Device according to claim 2 , characterized in that the attachment piece ( 30 ) consists of a stopper which can be at least partially inserted into the hollow body ( 10 ) at the end surface ( 10 a ).
7. Device according to claim 2 , characterized in that the attachment piece ( 30 ) has one or two passages which correspond to corresponding respiratory gas passages of the nosepiece and/or mouthpiece ( 100 ).
8. Device according to claim 7 , characterized in that one or two outwardly pointing pipe stubs ( 35 ) for introduction into the nosepiece and/or mouthpiece ( 100 ) are provided in the passages of the attachment piece ( 30 ).
9. Device according to claim 1 , characterized in that the attachment piece ( 30 ) can be turned relative to the hollow body ( 10 ) about at least one cylinder axis and has a closure means with which the second opening ( 71 ) can be closed by said turning.
10. Device according to claim 9 , characterized in that the cylinder axis lies substantially perpendicular to the axis of the respiratory gas flow (A) and medicament flow (M) directed into the hollow body ( 10 ).
11. Device according to claim 2 , characterized in that the spacer ( 40 ) has a substantially annular or cup-shaped configuration.
12. Device according to claim 11 , characterized in that the flow nozzle ( 50 ) is guided through a hole in the side wall of the annular shape or cup shape and is oriented substantially perpendicular to the first opening ( 20 ).
13. Device according to claim 12 , characterized in that the flow nozzle ( 50 ) projects by a predetermined length into the inside of the annular shape or inside of the cup shape.
14. Device according to claim 1 , characterized in that a third opening for attachment of a pressure gauge is provided in one side wall of the hollow body ( 10 ), preferably a side wall different than the side wall with the first opening ( 20 ).