Ventilator for intensified breathing and valve in patient conduit of apparatus for intensified breathing
AssigneeInstrumentarium Corp.
InventorsErkki Heinonen, Leif Bromster
Life of this patent
Estimating the term…
Abstract
The invention relates to a ventilator for intensified breathing, whereby a restrictor valve for an over-pressure in the system, a valve allowing breathing from the atmosphere and a directional valve for inhalation are combined to provide a single safety valve (21) arranged in a gas mixture and inhalation conduit assembly (7, 8), said safety valve being arranged to be controlled by an electric control system (26) of the ventilator. The invention also relates to a valve of the above type.
Claims14
A ventilator for intensified breathing, said ventilator comprising:
- at least one compressed gas interface (2,3;
- 5,6) for inhalation gas;
- an inhalation conduit (7,8) connected to the compressed gas interface (2,3;
- 5,6) for inhalation of said gas;
- a pressure measuring element (20) for inhalation gas, said element being arranged in connection with the inhalation conduit (7,8);
- a restrictor valve for releasing an over-pressure in the inhalation conduit;
- a valve arranged in the inhalation conduit, said valve opening upon under-pressure in the inhalation conduit thereby allowing breathing from the atmosphere through the inhalation conduit;
- a directional valve for inhalation, arranged in the inhalation conduit;
- an exhalation conduit (13) for exhalation gas, including an exhalation valve (24) and a directional valve for exhalation;
- and
- a control system (26), which controls the over-pressure restrictor valve on the basis of the pressure measurement of the inhalation gas,
- whereby the over-pressure restrictor valve and the valve that makes breathing from the atmosphere possible are combined to provide a safety valve (21), which is arranged to be controlled by said control system (26) and which comprises;
- a closing element (39);
- means (46) for opening the closing element;
- and
- a connection (43,44) to the atmosphere, said connection to atmosphere being opened and closed by said closing element (39),
- characterized in that the closing element (39) is arranged in the safety valve (21) in such a way that the closing element remains in a closed position by the impact of a force other than gravity, and whereby said safety valve (21) also provides a directional valve for inhalation, which closes during exhalation the connection (43,44) to the atmosphere.
A safety valve connected to a patient conduit (7,8) of an apparatus for intensified breathing, said valve providing in the patient conduit (7,8) a restrictor valve for an over-pressure of the inhalation gas, and a valve allowing breathing from the atmosphere through the patient conduit, said safety valve being controllable by a control system (26) connected to it, said control system issuing control commands to the safety valve on the basis of the inhalation gas pressures measured in the patient conduit and said safety valve comprising a closing element (39), means (46) for opening the closing element and a connection (43,44) to the atmosphere, said closing element (39) enabling the connection to atmosphere to be selectively opened and closed, characterized in that the closing element (39) is arranged in the safety valve (21) in such a way that it remains in a closed position by the impact of a force other than gravity, whereby said safety valve (21) also provides a directional valve for inhalation, which closes the connection (43,44) to the atmosphere during exhalation.
A ventilator for intensified breathing, the ventilator comprising:
- at least one compressed gas interface (2,3;
- 5,6) for inhalation gas;
- an inhalation conduit (7,8) connected to the compressed gas interface for the inhalation of the gas;
- a pressure measuring element (20) for the inhalation gas, the pressure measuring element being arranged in connection with the inhalation conduit;
- a safety valve (21) connected to the inhalation conduit, the safety valve being operable to release an over-pressure of inhalation gas in the patient conduit and to allow breathing from the atmosphere through the patient conduit, the safety valve including a connection (43,44) to atmosphere, the connection to atmosphere being controlled by the opening and closing of a closing element (39), the closing element being arranged in the safety valve such that the closing element remains in a closed position by a force other than gravity such that the closing element closes the connection to atmosphere during exhalation and is movable against the force to an open position upon an under-pressure in the inhalation conduit during inhalation, the safety valve further including a means (46) for moving the closing element between the open and closed positions;
- a control system (26) connected to the means for opening and closing the closing element, the control system issuing a command to the means for opening the closing element based upon an over-pressure measurement of the inhalation gas;
- and
- an exhalation conduit (13) for exhalation gas, including an exhalation valve (24) and a directional valve for exhalation.
Dependencies are inferred from the claim text.