PHYSIOLOGICAL PARAMETER DETECTOR
First Claim
Patent Images
1. A physiological sensor configured to be used in a patient monitoring system, the sensor further configured to detect an indication of a physiological condition of a patient and output a signal indicative of the physiological condition to a patient monitoring system, the physiological sensor comprising:
- at least one light emitting element configured to transmit light of a plurality of wavelengths; and
at least one detector configured to detect light attenuated by tissue of a patient, the detector comprising;
a sensor;
a ceramic carrier including shielding material at least partially surrounding the carrier and connected to ground to provide protection against undesired electromagnetic radiation; and
a top shielding layer including windows which allow the light attenuated by tissue of a patient to pass through while providing protection against undesired electromagnetic radiation.
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Accused Products
Abstract
A pulse oximetry sensor has an emitter adapted to transmit optical radiation into a tissue site and a ceramic detector adapted to receive optical radiation from the emitter after tissue site absorption. The detector is surrounded by shielding material to reduce undesirable electromagnetic interference.
232 Citations
19 Claims
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1. A physiological sensor configured to be used in a patient monitoring system, the sensor further configured to detect an indication of a physiological condition of a patient and output a signal indicative of the physiological condition to a patient monitoring system, the physiological sensor comprising:
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at least one light emitting element configured to transmit light of a plurality of wavelengths; and at least one detector configured to detect light attenuated by tissue of a patient, the detector comprising; a sensor; a ceramic carrier including shielding material at least partially surrounding the carrier and connected to ground to provide protection against undesired electromagnetic radiation; and a top shielding layer including windows which allow the light attenuated by tissue of a patient to pass through while providing protection against undesired electromagnetic radiation. - View Dependent Claims (2)
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3. An optical detector for a physiological monitoring system comprising:
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a photosensor having a first side and a second side; a ceramic carrier configured to couple with the second side of the photosensor; and shielding material partially covering at least the first side of the photosensor, the shielding material configured to reduce the effects of electromagnetic radiation. - View Dependent Claims (4, 5)
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6. A detector configured to detect desired signals and substantially reject undesired signals, the detector comprising:
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a photosensor; and a shielding mesh applied to said photosensor and configured to substantially reduce the detection of undesired signals and without substantially blocking the detection of desired signals. - View Dependent Claims (7, 8, 11, 12)
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9. A method for manufacturing a ceramic detectors comprising:
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providing a plurality of attached carriers; at least partially surrounding said plurality of carriers with shielding material; coupling a plurality of photosensors to said plurality of carriers; coupling a plurality of shields to said plurality of attached carriers and photosensors to form a plurality of detectors; and separating the plurality of detectors. - View Dependent Claims (10)
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13. An optical detector assembly method comprising the steps of:
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providing a ceramic carrier with embedded shielding material; coupling a photosensor to the ceramic carrier; and coupling a shielding cover to the ceramic carrier so as to shield the photosensor from electromagnetic interference. - View Dependent Claims (14)
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15. In a patient monitoring system, a ceramic detector comprising:
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a sensor; a ceramic carrier; and shielding material, the shielding material at least partially surrounding the sensor and configured to reduce the effects of electromagnetic radiation. - View Dependent Claims (16, 17, 18, 19)
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Specification