Measurement system for examining a section of tissue on a patient and the use of a measurement system of this type
First Claim
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1. A measuring arrangement for examining a tissue section of a patient, comprising:
- an electrode array in a plane and arranged to directly contact a surface of a tissue section of a patient;
a signal source;
a measuring circuit;
potential means;
the signal source subjecting the tissue section via direct contact by at least one electrode of the electrode array to electrical currents and/or voltages, which the measuring circuit measures on at least one electrode of the electrode array; and
an electrical conductor element that is coplanar with said electrode array, said electrical conductor element being attached to and surrounding a periphery of said electrode array, said potential means applying a potential to said electrical conductor element that differs from the potential of the electrodes of the electrode array.
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Abstract
A measurement system for examining a section of tissue on a patient in which electric current and/or voltages are applied to a patient in at least one location and are measured on the section of tissue to be examined by at least one electrode of a contact surface of the measurement system. As a result, conclusions can be drawn about the interior of the section of tissue to be examined. The electrode is at least partially surrounded by a conductor element for contacting with a potential which deviates from that of the conductor element.
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Citations
24 Claims
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1. A measuring arrangement for examining a tissue section of a patient, comprising:
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an electrode array in a plane and arranged to directly contact a surface of a tissue section of a patient; a signal source; a measuring circuit; potential means; the signal source subjecting the tissue section via direct contact by at least one electrode of the electrode array to electrical currents and/or voltages, which the measuring circuit measures on at least one electrode of the electrode array; and an electrical conductor element that is coplanar with said electrode array, said electrical conductor element being attached to and surrounding a periphery of said electrode array, said potential means applying a potential to said electrical conductor element that differs from the potential of the electrodes of the electrode array. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A measuring arrangement for examining a tissue section of a patient, comprising:
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a matrix of m by n plural first electrodes in a plane and that are electrically insulated from each other, each of m and n being greater than one; a second electrode that is coplanar with said matrix and completely surrounding and directly attached to said matrix around an entire periphery of said matrix and being electrically insulated from said first electrodes, said first electrodes and said second electrode being arranged and adapted to directly contact a same surface of a same tissue section of a patient; a signal source connected to said first electrodes and that applies an electrical signal through direct contact by at least one of said first electrodes to the patient; a measuring circuit that is connected to said first electrodes and measures the electrical signal thereon; and a source of an electrical potential that is less than an electrical potential of said first electrodes, said source being connected to said second electrode. - View Dependent Claims (20, 21, 22, 23)
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24. A measuring arrangement for examining a tissue section of a patient, comprising:
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an electrode array that is arranged to directly contact a surface of a tissue section of a patient; a signal source; a measuring circuit; potential means; and an electrical conductor element that is directly attached to and surrounds a periphery of said electrode array and that is electrically insulated from said electrode array, said potential means applying a potential to said electrical conductor element that differs from the potential of the electrodes of the electrode array, said electrical conductor element being arranged to directly contact the same surface of the same tissue section directly contacted by said electrode array, wherein the signal source subjects the tissue section via direct contact by at least one electrode of the electrode array to electrical currents and/or voltages that the measuring circuit measures on at least one electrode of the electrode array.
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Specification