Siemens Aktiengesellschaft

Dieter Kuhl

Gunter Luft

Konrad Mund

Gerhard Richter

Ferdinand V Sturm

The invention relates to an implantable dosing device for the continuous, controllable release of medication in the human or animal body, comprising a medicine reservoir of variable volume and a liquid chamber which is tensionally connected to the medicine reservoir and the volume of which can be varied by liquid which is transported through an ion exchange diaphragm by electro-osmosis due to an electric field between two electrodes. According to the invention, the electrodes in such an implantable dosing device are hydrogen electrodes which are connected to each other by a line for hydrogen, and means are further provided for compensating hydrogen losses.

Implantable dosing device

The invention relates to an implantable dosing device for the continuous release of medication in the human or animal body, comprising a medicine reservoir of variable volume and a propellant chamber of variable volume tensionally connected to the medicine reservoir, as well as flow-control means. According to the invention, an electro-osmotic control valve with an ion exchange diaphragm arranged between two porous electrodes is provided for the flow control in such a dosing device.

An improved method and apparatus for removing carbon dioxide from the air in which the air is passed at a slightly elevated pressure over the surfaces of absorption elements impregnated with a carbon dioxide-absorbing liquid. The elements are corrugated plates, and the air flows transverse to the corrugations.

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Mohrendorf, Germany

Dieter Kuhl