Artificial breathing device

Claim 1

A device for artificial respiration adapted to introduce predetermined quantities of air or oxygen into the lungs at predetermined intervals, comprising: an automatic time-cycled source of air or oxygen; a valve housing containing an inlet passage connected to said time-cycled source of compressed air or oxygen; a manually adjustable regulating valve mounted within said inlet passage to throttle said inlet opening and to be manually adjusted to the required air or oxygen quantity; and an air duct perforating said valve housing distanced from said regulating valve and having its one end open to the atmosphere during the introduction of said respirating gas into said lungs, while its other end is provided with means for attaching to it a patient; a rigid, small bore tube having one end connected to said air duct and an opposite end connected to said passage downstream said regulating valve, said tube entering said air duct downstream of said regulating valve and extending close to the wall of said air duct with its open end directed in the direction of said attaching means, said small bore tube being dimensioned such that a venturi effect is created when said compressed air or oxygen passes through said small bore tube, whereby said timed-cycled source forces air or oxygen through said small bore tube creating a venturi effect drawing atmospheric air into said duct through said open end and forcing a mixture of said atmospheric air and said air or oxygen from said source into the lungs of said patient.

Claim 2

A device for artificial respiration adapted to introduce predetermined quantities of air or oxygen into the lungs at predetermined intervals, comprising: an automatic time-cycled source of air or oxygen; a valve housing containing an inlet passage connected to said time-cycled source of compressed air or oxygen; a manually adjustable regulating valve mounted within said inlet passage to throttle said inlet opening and to be manually adjusted to the required air or oxygen quantity; and an air duct perforating said valve housing distanced from said regulating valve and having its one end open to the atmosphere during the introduction of said respirating gas into said lungs, while its other end is provided with means for attaching to it a patient; a rigid, small bore tube having one end connected to said air duct and an opposite end connected to said passage downstream said regulating valve, said tube entering said air duct downstream of said regulating valve and extending close to the wall of said air duct with its open end directed in the direction of said attaching means, said small bore tube being dimensioned such that a venturi effect is created when said compressed air or oxygen passes through said small bore tube, whereby said timed-cycled source forces air or oxygen through said small bore tube creating a venturi effect drawing atmospheric air into said duct through said open end and forcing a mixture of said atmospheric air and said air or oxygen from said source into the lungs of said patient.