초록 ▼

Breathing aid comprising a tube (4) which forms a main channel (5) and which is intended to be connected by its distal end (3) to a breathing tract of a patient so that the main channel (5) connects the breathing system of the patient to the outside. The breathing aid further comprising at least one

Breathing aid comprising a tube (4) which forms a main channel (5) and which is intended to be connected by its distal end (3) to a breathing tract of a patient so that the main channel (5) connects the breathing system of the patient to the outside. The breathing aid further comprising at least one auxiliary channel (8,8.1) for injecting a gas jet for ventilating the patient and opening into the main channel (5) close to the distal end (7) thereof. According to the invention this device is characterized in that at least the distal end of the auxiliary channel (8,8.1) opening into the main channel (5) is parallel thereto and in that, opposite the distal orifice (17) of the auxiliary channel (8,8.1), a face (14b) is provided for deflecting the breathable ventilation gas jet towards the inside of said main channel (5).

대표청구항 ▼

1. Breathing aid device comprising a tube having a distal and proximal end and a main channel therebetween, said distal end located in a patient's breathing tract and connecting said patient's breathing tract to the ambient atmosphere or to a pressurized breathable gas source, said device further co

1. Breathing aid device comprising a tube having a distal and proximal end and a main channel therebetween, said distal end located in a patient's breathing tract and connecting said patient's breathing tract to the ambient atmosphere or to a pressurized breathable gas source, said device further comprising at least one auxiliary channel formed in a wall of said tube and having a distal orifice opening into said main channel close to the distal end of said tube for injecting a gas jet to ventilate said patient, said auxiliary channel being substantially parallel to said main channel, a first face and a second face formed in the wall of said tube, said distal orifice being located in said first face, said first face diverging from the center axis of said main channel towards the auxiliary channel, said second face being opposite said first face and converging towards the center axis of said main channel in the direction of the distal end of said tube, said second face forming a means to deflect said gas jet towards the center of said main channel. 2. Device according to claim 1, wherein said device includes several auxiliary channels formed in the wall of said tube, and wherein the distal orifices of said auxiliary channels are formed in said first face. 3. Device according to claim 2, characterized in that said second face is extended towards said distal end of said tube by a wall, said wall serving to slightly widen said main channel. 4. Device according to claim 3, wherein said deflection means are formed in an end-piece, said end-piece being afixable to the distal end of said tube. 5. Device according to claim 1, characterized in that said deflection means are formed of a discontinuous assembly of recesses, each of said recesses having a generally conical shape, said assembly of recesses being formed in the internal wall of said tube, the bottom of each of said recesses forming in opening for the distal end of an auxiliary channel. 6. Device according to claim 1, characterized in that it comprises a plurality of auxiliary channels, at least some of said channels being supplied by a common source of pressurized breathing gas. 7. Device according to claim 6, characterized in that the common supply of said channels is provided via a distribution ring coaxial with said tube. 8. Device according to 5 or 6, characterized in that said auxiliary channels which are not supplied by a common source serve for introducing additional gas products, such as medical products or humid gases. 9. Device according to claim 1, characterized in that said device comprises at least one additional auxiliary channel, independent of said auxiliary channel and connected to a pressurized gas source, each of said at least one additional auxiliary channels opening into said main channel close to the proximal end of said main channel and at least the proximal end of each of said at least one additional auxiliary channels being parallel to said main channel, and each of said at least one additional auxiliary channels further including means for deflecting the gas jet passing through said at least one additional auxiliary channel in the direction of the axis of said main channel, said deflection means being disposed opposite the opening in said at least one additional auxiliary channel which is close to the proximal end of said main channel. 10. Device according to claim 9, characterized in that said auxiliary channels and said deflection means are arranged similarly in the proximal and distal portions of said device. 11. Device according to claim 1, characterized in that said device forms an air inlet and outlet end-piece for a breathing aid mask, said breathing aid mask intended to be applied to the face of a patient. 12. Breathing aid mask, characterized in that said breathing aid mask is provided with a breathing aid according to claim 11.