Sensor for the measurement of ion activity
First Claim
1. A sensor for measuring the activity of ions at the surface of organic tissues or fluids, comprising an electrical insulating carrier, a plurality of ion-selective membranes supported in the insulating carrier and secured to the insulating carrier hermetically against the penetration of moisture between said membranes and said carrier, an electrical shunt connected to each membrane and forming with each membrane an electrode, a reference electrode operatively connected to said carrier for acting with at least one measuring electrode formed by at least one of said plurality of membranes and connected shunts, and a sensor body connected to said carrier holding at least all of said measuring electrodes to simultaneously measure a plurality of ionic activities with said plurality of membranes.
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Accused Products
Abstract
A sensor for measuring the activity of ions by means of ion-selective membranes (4) improves the measuring possibilities and reduces the dimensions of the sensor in that a plurality of such membranes are held in a common carrier (3) and are electrically insulated and protected against the penetration of moisture. Shunts (2) are provided in a sensor body (1) of the carrier. The carrier and sensor body are connected to one another. The invention is also directed to a method for producing such a sensor. Moreover, the invention is concerned with sensors and a respective arrangement for hemodialysis.
22 Citations
34 Claims
- 1. A sensor for measuring the activity of ions at the surface of organic tissues or fluids, comprising an electrical insulating carrier, a plurality of ion-selective membranes supported in the insulating carrier and secured to the insulating carrier hermetically against the penetration of moisture between said membranes and said carrier, an electrical shunt connected to each membrane and forming with each membrane an electrode, a reference electrode operatively connected to said carrier for acting with at least one measuring electrode formed by at least one of said plurality of membranes and connected shunts, and a sensor body connected to said carrier holding at least all of said measuring electrodes to simultaneously measure a plurality of ionic activities with said plurality of membranes.
Specification