Abstract: The invention relates to an arrangement for inducing a state of anaesthesia in a living creature and maintaining the creature in that state by administering to the said creature an infused volume of liquid anaesthesia-inducing medication per unit of time, preferably during the use of one or more lung ventilation unit(s)s and one or more infusion unit(s). The arrangement comprises a basic unit (102) with control function software (600a?–600r?) and one or more modular unit(s) (30?, 30, 30?) containing hardware for the control functions. When a modular unit (30?) co-acts with the basic unit (102), it (30?) activates the control functions stored in the basic unit (102).

Abstract: The invention relates to an arrangement (200) for anaesthetising a living creature (V) and for maintaining said creature in an anaesthetised state, by administering thereto an infused volume of anaesthesia inducing pharmaceutical (22) in liquid phase per unit of time, with the aid of one or more lung ventilator units (A) and one or more infusion units (B). Chosen parts of the lung ventilator unit, with the exception of external insufflation hose, expiration valve, measuring probe and a number of hoses (12), and selected parts of the infusion unit (B), with the exception of cannula (5B) and hose (4B) are mutually combined to form a single equipment unit (201). Some of the parts of the equipment unit are mutually coordinated with respect to communication via a computer unit (600) included in the equipment unit, and the computer unit is adapted to monitor unit related criteria and creature related criteria.

Abstract: The invention shows that conditions can be created in intravenous anaesthesia in which single-patient parts and accessories are separated from multi-patient parts and accessories by utilisation of a filter preventing contaminating particles from migrating from single-patient parts and accessories to multi-patient parts and accessories.

Abstract: The present invention relates to a mixing valve that can be included in pulmonary respiration equipment and with which oxygen (2) and air (3) can be mixed in adapted proportions. The mixing valve (1) comprises a valve housing (40) that has an internal cavity (46), which forms two mutually opposing valve seats (10d, 20d). The cavity (46) encloses an element (30) on which two valve bodies (10c, 20c) are formed. The cavity wall and the element have respective screw threads (46c? and 30c?) which enable two valve means (10, 20) to be actuated so as to open one of said valve means and close the other to passage of media therethrough. The mixing valve is of simple construction and precise in operation and can be constructed with small outer dimensions.

Abstract: The invention relates to an arrangement in ventilatory treatment of the lungs of a living creature (2) under anaesthesia, comprising valve equipment (4) devised for carrying an insufflation gas and/or an insufflation gas mixture from a unit for pulmonary ventilation (3) into the lungs and airways (2a) of the living creature and permitting expiration of gas and/or gas mixture held in the airways and gas measurement equipment (6) in the sensor unit (61, 62, 63). The said valve equipment (4) and a combination of the said sensor units (61, 62, 63) are arrayed close together. They are connected to an end section of a bundle of hoses (30) from the unit for pulmonary ventilation, and the said sensor units are located closer to the living creature (2) than the said valve equipment (4).