Measuring electrode system

• US 20060155181A1
• Filed: 08/20/2003
• Published: 07/13/2006
• Est. Priority Date: 08/21/2002
• Status: Active Grant

• Current Assignee: Vyaire Medical GmbH
• Original Assignee: Ruediger Eichler
• Inventors: Eichler, Ruediger
• Granted Patent: US 7,532,921 B2
• Time in Patent Office: Days
• US Class Current: 600/372
• CPC Class Codes: A61B 2562/043 in a linear array
• CPC Class Codes: A61B 5/0536 Impedance imaging, e.g. by tomography
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses

Abstract

This invention relates to a measuring electrode arrangement (1), in particular for electrimpedance tomography, having at least one measurement object (5) for electric motor contacting of a measurement object (2). It is proposed that a storage space (7) which contains a contact medium (6) for reducing the electric contact resistance between the measuring electrode (5) and the measurement object (2) is located on the side of the measuring electrode (5) facing away from the measurement object (2), said storage space containing a contact medium (6) for reducing the electric contact resistance between the measuring electrode (5) being at least partially permeable for the contact medium (6).

Claims

1. A measuring electrode arrangement for electroimpedance tomography, having at least one measuring electrode for electric contacting of a measurement object, whereas a storage space is arranged on the side of the measuring electrode facing away from the measurement object, the storage space containing a contact medium for reducing the electric contact resistance between the measuring electrode and the measurement object, the measuring electrode being at least partially permeable for the contact medium, while whereas the contact medium contains ions in aqueous solution, whereas the ions can penetrate through the measuring electrode, whereas the measuring electrode is impermeable for a liquid used as a solvent.

2. The measuring electrode arrangement according to claim 1, wherein the contact medium is a liquid, a gel, a foam or a paste.

3. The measuring electrode arrangement according to claim 1, wherein an adhesive layer is arranged on the side of the measuring electrode arrangement facing the measurement object in order to attach the measuring electrode arrangement to the measurement object.

4. The measuring electrode arrangement according to claim 1, wherein the storage space is bordered by a plastic layer.

5. The measuring electrode arrangement according to claim 1, further comprising at least one electric shield which consists of an electrically conductive material and is electrically insulated with respect to the measuring electrode.

6. The measuring electrode arrangement according to claim 5, further comprising a plurality of measuring electrodes that are electrically insulated with respect to one another.

7. The measuring electrode arrangement according to claim 6, further comprising a plurality of shields that are electrically insulated with respect to one another, each shield being arranged on one of the measuring electrodes.

8. The measuring electrode arrangement according to claim 6, further comprising a common electric shield for the measuring electrodes.

9. The measuring electrode arrangement according to at least claim 5, wherein the shield is located on the side of the measuring electrode facing away from the measurement object.

10. The measuring electrode arrangement according to claim 5, wherein the measuring electrodes are mounted on a belt-like electrode carrier, wherein the electrode carrier is extensible for adjusting the electrode spacing.

11. A use of a measuring electrode arrangement according to at claim 1 for electroimpedance tomography.