Tracheal or tracheostomy tube and systems for mechanical ventilation equipped therewith
First Claim
1. A tube for introduction into a respiratory tract of a patient, especially an orotracheal or nasotracheal tube or tracheostomy tube for controllable ventilation of a patient, said tube comprising a distal end that can be introduced into a respiratory tract and a proximal end provided with connections, and two passages extending essentially from the proximal end to the distal end of the tube, with one of the two passages serving as a ventilation passage during ventilation or breathing and the other of the two passages serving as a inspiration tube for additional or sole administration of fresh gas, each of the two passages having a distal outlet opening at the distal end of the tube and the distal end of the inspiration passage being bent in the vicinity of the distal end of the tube by approximately 180°
- and being directed toward the ventilation passage in a direction of the proximal end of the tube, thereby deflecting a flow of gas in the inspiration passage in the direction of the ventilation passage, the distal end of the inspiration passage is narrowed thereby forming a nozzle and is terminated at a nozzle distal outlet opening and said nozzle distal outlet opening is directed toward the open distal outlet end of the ventilation passage, said distal end of said inspiration passage providing means for increasing a flow of gas therethrough.
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Accused Products
Abstract
The invention relates to a double-barrelled tube with a respiratory (11) and an inhaling (12) passage for the mechanically controllable respiration of a patient in which the inhaling passage connected to a respiratory gas source is fitted at the distal outlet with a nozzle directed towards the distal outlet aperture of the respiratory passage. The respiratory passage is connected at the proximal outlet with an exhalation valve (60) which can be opened and closed by means of an electrical control device. The electrical control device is connected to an electrocardiograph or a blood pressure measuring instrument so that respiration may be effected synchronously with the pulse rate using the respiratory gas fed to the inhalation passage with a retrograde flow of respiratory gas. Inhalation may take place in either the systole or the diastole.
165 Citations
36 Claims
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1. A tube for introduction into a respiratory tract of a patient, especially an orotracheal or nasotracheal tube or tracheostomy tube for controllable ventilation of a patient, said tube comprising a distal end that can be introduced into a respiratory tract and a proximal end provided with connections, and two passages extending essentially from the proximal end to the distal end of the tube, with one of the two passages serving as a ventilation passage during ventilation or breathing and the other of the two passages serving as a inspiration tube for additional or sole administration of fresh gas, each of the two passages having a distal outlet opening at the distal end of the tube and the distal end of the inspiration passage being bent in the vicinity of the distal end of the tube by approximately 180°
- and being directed toward the ventilation passage in a direction of the proximal end of the tube, thereby deflecting a flow of gas in the inspiration passage in the direction of the ventilation passage, the distal end of the inspiration passage is narrowed thereby forming a nozzle and is terminated at a nozzle distal outlet opening and said nozzle distal outlet opening is directed toward the open distal outlet end of the ventilation passage, said distal end of said inspiration passage providing means for increasing a flow of gas therethrough.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
Specification