Abstract: A lead free, galvanic sensor. The sensor having a housing, a cathode, an anode, a diffusion barrier, contact wires and an electrolyte, the anode being made of a tin containing alloy. The sensor electrolyte is an aqueous solution of phosphoric acid or an aqueous solution of a cesium salt.

Abstract: A lead free, galvanic sensor. The sensor having a housing, a cathode, an anode, a diffusion barrier, contact wires and an electrolyte, the anode being made of a tin containing alloy. The sensor electrolyte is an aqueous solution of phosphoric acid or an aqueous solution of a cesium salt.

Abstract: A new method and a device are disclosed to determine physiologic parameters of a subject by analyzing it's breathing gas with an electrochemical sensor. The measured components of the breathing gas allow for many conclusions about the condition of the subjects's pulmonary system. It is therefore an objective of this invention to determine physiologic parameters from measuring the partial pressure of oxygen in the mainstream of the breathing gas. According to the invention the measurement can be performed non invasive and allows for conclusions about the respiratory and metabolic system of a subject. The invention makes a continuous measurement of the oxygen partial pressure possible, that almost shows no time delay. The invention allows for instance the determination of parameters like the oxygen concentration in the breathing gas, the oxygen consumption of the subject, the heart frequency, the respiratory quotient, the compliance of the pulmonary tract and other physiologic parameters.

Abstract: The invention describes a new device for the measurement of the partial pressure of carbon dioxide. The device is based on a simple construction and can be manufactured in a cost effective way. The pH dependency of the redox potential of organic substances is used to determine an electrical characteristic that depends on the partial pressure of carbon dioxide. The device for the potentiometric determination of the partial pressure of carbon dioxide consists of a housing with an opening for the entrance for gases, a gas permeable membrane, an electrolyte, at least one redox and one reference electrode with electrode contacts that transmit the electrode potential outwards through the housing. The gas permeable membrane has an electronically conductive layer that works as a redox electrode for a pH dependent redox system.

Abstract: This invention relates to a device for collecting and releasing saliva. The purpose of the invention is to provide sample device which is easy and safe to handle and which is configured as a disposable construction for use especially on medical diagnostics. To this end, the device consists of a porous unit which can take up the sample fluid and can be squeezed out. The unit is located inside a container which is sealed on one side at one end, and is arranged in such a way that it can be displaced out of said container at the other end which can be opened. The end of the container which can be opened is provided with a sealing cap.

Abstract: An electrochemical gas sensor for detecting gaseous components in the environment has a diffusion membrane, a measuring electrode, a counterelectrode, and, if desired, a reference electrode, pressed together in a disk stack, which are accommodated in a pot-shaped cover, which in turn is beaded around the sealing edge (6) of a housing pot (1). A compression spring (21) in the housing pot (1) presses a wick disk (20) against the measuring electrode (12), so that a constant and pressurized, intimate and sealed positioning of the disk stack is guaranteed. It is achieved as a result that no additional contact leads from the electrodes to the outer space of the sensor to the measuring and evaluating unit are needed, so that leakage-free sealing of the sensor to the outside is possible, and that a constantly stable, reproducible measured signal is obtained because of the defined and narrow electrolyte film on the surface of the measuring electrode.

Abstract: An electrochemical gaseous measurement cell includes a housing with an anode and a cathode arranged in spaced locations in an acid electrolyte for galvanic measurement of gases which comprises an aqueous solution of an organic acid containing a polyfunctional groups suitable to yield protons during the measurement. The container, or housing, also has a membrane at an opening thereof which is permeable to oxygen.