Biological signal sensor and device for recording biological signals incorporating the said sensor
First Claim
1. A biological signal sensor comprising:
- a first, a second and a third electrodes disposed on a common base and made as closed circuits and arranged in one another, the first electrode being disposed externally and the third electrode forming a smaller circuit;
a fourth electrode disposed inside the smaller circuit, the fourth electrode and the first electrode forming a pair of current-feeding electrodes; and
a pair of measuring electrodes formed by the second and the third electrodes.
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Accused Products
Abstract
The sensor has four electrodes arranged on a common base, three of which are made as closed circuits, placed one into another, whereas the fourth electrode is placed inside the smallest circuit. The external and the central electrodes form a pair of current-feeding electrodes, whereas the electrodes disposed between them form a pair of measuring electrodes. The second design option of the sensor has three electrodes, two of which are made as closed circuits placed one into another, whereas the third electrode is placed inside the electrode that is smaller. The external and the central electrodes form a pair of current-feeding electrodes, and the electrode arranged between them together with the external or the central electrode form a pair of measuring electrodes. The design of sensors makes it possible to use them in combination with biological signal sensors of non-rheographic modality, for example, pulse wave, temperature. The sensor may be incorporated in wristwatch or bracelet.
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Citations
16 Claims
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1. A biological signal sensor comprising:
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a first, a second and a third electrodes disposed on a common base and made as closed circuits and arranged in one another, the first electrode being disposed externally and the third electrode forming a smaller circuit;
a fourth electrode disposed inside the smaller circuit, the fourth electrode and the first electrode forming a pair of current-feeding electrodes; and
a pair of measuring electrodes formed by the second and the third electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A biological signal sensor comprising:
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a first, a second and a third electrodes disposed on a common base, the first and the second electrode being configured as closed circuits disposed in one another and the first electrode being an external electrode;
the third electrode being disposed inside the second electrode and forming a pair of current feeding electrodes with the first electrode; and
the second electrode forming a pair of measuring electrodes with either the first electrode or the third electrode. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A device for recording biological signals made as a wrist-watch or a bracelet, the device comprising:
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a sensor disposed in a case, the sensor comprising;
a first, a second and a third electrodes disposed on a common base and made as closed circuits and arranged in one another, the first electrode being disposed externally and the third electrode forming a smaller circuit;
a fourth electrode disposed inside the smaller circuit, the fourth electrode and the first electrode forming a pair of current-feeding electrodes; and
a pair of measuring electrodes formed by the second and the third electrodes;
wherein the sensor is mounted on a wall intended to face the surface of a patient'"'"'s arm.
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16. A device for recording biological signals made as a wrist-watch or a bracelet, the device comprising:
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a biological sensor disposed in a case, the biological sensor comprising;
a first, a second and a third electrodes disposed on a common base, the first and the second electrode being configured as closed circuits disposed in one another and the first electrode being an external electrode;
the third electrode being disposed inside the second electrode and forming a pair of current feeding electrodes with the first electrode; and
the second electrode forming a pair of measuring electrodes with either the first electrode or the third electrode;
wherein the biological sensor is mounted on a wall intended to face the surface of a patient'"'"'s arm.
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Specification