Siemens Elema Ab

Siemens Aktiengesellschaft

Bjorn Jonson

Sven-Gunnar Olsson

Sven G Olsson

Hanna Neuman

Respirator intended for connection to human or animal airways

Method and device for reduction of rebreathing of gas from dead space

A method and device to support blood circulation during ventilation of the lungs which include controlling the application of the respiratory gases to occur at a particular point in time in the heart activity, and applying a uniform pressure to resist expansion of the thorax cavity to increase pressure on the heart during the heart's systole. The device which applies a respiratory gas and the uniform pressure includes a control device which senses the heart's activity to determine the desired point in time of the heart cycle.

Respirator and a method of utilizing the respirator to promote blood

A method of mixing a plurality of gases in a specified proportion and dosing the resultant gas mixture comprises supplying individually controlled gas streams from suitable sources thereof in a pulse-like fashion to an enclosed chamber from where the resultant gas mixture can be delivered to a point of use, such as a patient undergoing anesthesiological or respirational treatment.

Process and apparatus for mixing gases in a specific proportion and

A facial mask for the transmission of a gaseous medium to a patient, which incorporates a sealing arrangement which is not damaging to the skin and, concurrently, hermetically seals off the face of the patient. The rim of a facial mask which is adapted to be positioned against the head of the patient has a sealing part which consists of such a material so as to be placeable into a rigid condition through the intermediary of a vacuum or reduced pressure which is present in the sealing part. A removable lid may be provided on the facial mask thereby facilitating that, if need be, the physician is capable of simple and rapid exposure of the patient's face.

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Lund, Sweden

Bjorn Jonson