Noninvasive vital signs sensor
First Claim
Patent Images
1. A noninvasive sensor for use on an anatomical structure of a patient to obtain at least one vital sign, comprising:
- a supportive body;
a conformable body coupled to the supportive body and having a contact surface for contacting the anatomical structure;
an optical window disposed at the contact surface; and
a refraction-mode optical transducer sensitive to arterial oxyhemoglobin saturation, the optical transducer being optically coupled to the optical window.
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Abstract
A noninvasive vital signs monitoring device uses a sensor which is capable of providing data for calculating pulse rate, blood pressure (for example, systolic, diastolic, and/or mean pressure) and blood oxygen saturation. In some embodiments, the sensor is also capable of providing data for calculating tissue perfusion. Optionally, a temperature sensor may be included as well.
55 Citations
33 Claims
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1. A noninvasive sensor for use on an anatomical structure of a patient to obtain at least one vital sign, comprising:
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a supportive body;
a conformable body coupled to the supportive body and having a contact surface for contacting the anatomical structure;
an optical window disposed at the contact surface; and
a refraction-mode optical transducer sensitive to arterial oxyhemoglobin saturation, the optical transducer being optically coupled to the optical window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A noninvasive sensor for use on an anatomical structure of a patient to obtain at least one vital sign, comprising:
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a generally disk-like supportive body;
a generally disk-like conformable body coupled to the supportive body and having a contact surface for contacting the anatomical structure, the conformable body comprising;
a generally conformable pressure-transmissive medium comprising a fluid-filled pouch having a surface disposed at the contact surface;
a generally annular conformable body having a first surface coupled to the supportive body, and a second surface opposite the first surface, the annular conformable body generally encircling the conformable pressure-transmissive medium; and
a generally annular compressive body comprising pressure-attenuating material, the annular compressive body having a first surface abutting the second surface of the annular conformable body, and a second surface disposed at the contact surface, the annular compressive body generally encircling the conformable pressure-transmissive medium;
an optical window disposed at the contact surface;
a refraction-mode optical transducer sensitive to arterial oxyhemoglobin saturation, the optical transducer being optically coupled to the optical window; and
a pressure transducer coupled to the pressure-transmissive medium. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A system for use on an anatomical structure of a patient to noninvasively obtain at least one vital sign, comprising:
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a generally rigid body;
a hold-down assembly incorporated into the body;
a retainer extending from the rigid body for engaging the anatomical structure upon activation by the hold-down assembly; and
a noninvasive sensor pivotally extending from the body, wherein the noninvasive sensor comprises;
a supportive body;
a conformable body coupled to the supportive body and having a contact surface for contacting the anatomical structure;
an optical window disposed at the contact surface; and
a refraction-mode optical transducer sensitive to arterial oxyhemoglobin saturation, the optical transducer being optically coupled to the optical window. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
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Specification