EP0166305A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Anaesthesia and/or respirator arrangement with alternative manual operation
Assignee: Gambro Engstrom AB
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Filing: 1985-06-12
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Granted: —
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Expires: 2005-06-12
Abstract
Abstract Anaesthesia and/or respirator arrangement comprising a gas preparation section which is adapted to prepare a treatment gas of gas from one or more sources (7, 8, 9; 7a, 8a, 9a) and a normally mechanically operated ventilator section (55, 56, 58-68) by means of which the prepared gas mixture is supplied to the patient, the said ventilator section being adapted so that it also can be operated with the help of a manual reserve system which comprises a manually actuated pump (81). <??>The manually actuated pump (81) is adapted to act with the help of a preferably gaseous propellant from the outside upon a movable wall in a chamber (59) containing the treatment gas, the treatment gas and the propellant being completely separated from each other.
Inventors
- 👤 Sven Malte Broddner
- 👤 Leif Brömster
- 👤 Ulf Lundell
- 👤 Göran Sigvard Pilenvik
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 23:59
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0057; A61M16/0081; A61M16/0051; A61M16/10; A61M16/104; A61M16/0087; A61M16/009; A61M16/0096; A61M16/08; A61M16/0816; A61M16/0841; A61M16/085; A61M16/22
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
123 words
Anaesthesia and/or respirator arrangement comprising a gas preparation section which is adapted to prepare a treatment gas of gas from one or more gas sources(7,8,9; 7a,8a,9a) and a normally mechanically operated ventilator section (55-56, 58-68) by means of which the prepared gas mixture is supplied to the patient, the said ventilator section being adapted so that it also can be operated with the help of a manual reserve system which comprises a manually actuated pump (81), characterized in that the manually activated pump (81) is adapted to act with the help of a preferably gaseous propellant from the outside upon a movable wall in a chamber (59) containing the treatment gas, the treatment gas and the propellant being completely separated from each other.
Claim 2
Dependent Claim
123 words
Anaesthesia and/or respirator arrangement comprising a gas preparation section which is adapted to prepare a treatment gas of gas from one or more gas sources(7,8,9; 7a,8a,9a) and a normally mechanically operated ventilator section (55-56, 58-68) by means of which the prepared gas mixture is supplied to the patient, the said ventilator section being adapted so that it also can be operated with the help of a manual reserve system which comprises a manually actuated pump (81), characterized in that the manually activated pump (81) is adapted to act with the help of a preferably gaseous propellant from the outside upon a movable wall in a chamber (59) containing the treatment gas, the treatment gas and the propellant being completely separated from each other.
Claim 3
Dependent Claim
36 words
An arrangement in accordance with claim 1, charac- terized in that gas from one of the gas sources (7,9; 7a) which are utilized for the preparation of the treatment gas is used as the said propellant.
Claim 4
Dependent Claim
39 words
An arrangement in accordance with claim 1, charac- terized in that the chamber (59) containing the treatment gas is acted upon also during normal mechanical operation by the pressure of one of the treatment gases, e.g. air or oxygen.
Claim 5
Dependent Claim
32 words
An arrangement in accordance with claim 3, charac- terized by a reducing valve (49) being arranged between the said source (7,9; 7a) of the said treatment gas and the said chamber (59).
Claim 6
Dependent Claim
58 words
An arrangement in accordance with claim 4, charac- terized by a change-over valve (80) arranged in the duct between the said source (7,9; 7a) of the said treatment gas and the said chamber (59) which preferably automatically disconnects the said source when the manually actuated pump (81) is acted on to produce a pressure upon the movable wall.
Claim 7
Dependent Claim
37 words
An arrangement in accordance with claim 3, charac- terized in that the said chamber (59) is constituted of a bag, bellows or the like compressible from the outside which is arranged in a closed rigid chamber (60).
Claim 8
Dependent Claim
37 words
An arrangement in accordance with anyone of the preceding claims, characterized in that the treatment gas and/ or the propellant for the same is in connection with a valve (86) which opens at the maximum permissible pressure.
Claim 9
Dependent Claim
44 words
An arrangement in accordance with claim 5, charac- terized in that the said change-over valve (80) is adapted to be reset automatically when the manual operation ceases so that the chamber (59) containing the treatment gas is subjected once again to normal mechanical operation.
Claim 10
Dependent Claim
78 words
An arrangement in accordance with claim 8, the ventilator section (55-56, 58-68) being adapted to be controlled according to the EMMV method (Extended Mandatory Minute Ventilation), the inspiratory gas supplied to the patient being continuously measured and integrated and compared with the integral of a corresponding set value, characterized in that the manually supplied inspiratory gas too is measured and integrated, the result obtained being added to the integral of the mechanically supplied or spontaneously inspirated treatment gas.
Claim 11
Dependent Claim
37 words
An arrangement in accordance with claim 9, charac- terized in that the mechanically supplied gas and the manually supplied gas are both measured by means of the same meter (61,75) downstream of the said change-over valve (80).
References Cited (Backward Citations)
No citation records indexed.
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