Smartglasses for detecting congestive heart failure
First Claim
1. A system configured to calculate extent of congestive heart failure (CHF), comprising:
- smartglasses configured to be worn on a user'"'"'s head;
an inward-facing camera, physically coupled to the smartglasses, configured to capture images of an area comprising skin on the user'"'"'s head;
wherein the area is larger than 4 cm{circumflex over (
)}2, and the inward-facing camera is mounted more than 5 mm away from the user'"'"'s head;
a sensor, physically coupled to the smartglasses, configured to measure a signal indicative of a respiration rate of the user; and
a computer configured to calculate the extent of CHF based on;
a facial blood flow pattern recognizable in the images, and the respiration rate of the user recognizable in the signal.
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Accused Products
Abstract
Systems for calculating extent of congestive heart failure (CHF) and/or identifying exacerbation of CHF. In one embodiment, a system includes smartglasses configured to be worn on a user'"'"'s head, and an inward-facing camera and a sensor, both physically coupled to the smartglasses. The inward-facing camera is mounted more than 5 mm away from the head and captures images of an area comprising skin on the user'"'"'s head, which is larger than 4 cm{circumflex over ( )}2. The sensor measures a signal indicative of a respiration rate of the user (respiration signal). The system also includes a computer that calculates the extent of CHF based on: a facial blood flow pattern recognizable in the images, and respiration rate recognizable in the respiration signal.
79 Citations
20 Claims
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1. A system configured to calculate extent of congestive heart failure (CHF), comprising:
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smartglasses configured to be worn on a user'"'"'s head; an inward-facing camera, physically coupled to the smartglasses, configured to capture images of an area comprising skin on the user'"'"'s head;
wherein the area is larger than 4 cm{circumflex over (
)}2, and the inward-facing camera is mounted more than 5 mm away from the user'"'"'s head;a sensor, physically coupled to the smartglasses, configured to measure a signal indicative of a respiration rate of the user; and a computer configured to calculate the extent of CHF based on;
a facial blood flow pattern recognizable in the images, and the respiration rate of the user recognizable in the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system configured to identify exacerbation of congestive heart failure (CHF), comprising:
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smartglasses configured to be worn on a user'"'"'s head; an inward-facing camera, physically coupled to the smartglasses, configured to capture images of an area comprising skin on the user'"'"'s head, which are indicative of a facial blood flow pattern of the user;
wherein the area is larger than 4 cm{umlaut over (
)}2, and the inward-facing camera is mounted more than 5 mm away from the user'"'"'s head;a sensor, physically coupled to the smartglasses, configured to measure a signal indicative of a respiration rate of the user; and a computer configured to; receive previous images of the area, which are indicative of a previous facial blood flow pattern while the user had a certain extent of CHF; receive a previous respiration rate taken while the user had the certain extent of CHF; and identify exacerbation of the CHF based on;
a difference above a first predetermined threshold between the facial blood flow pattern and the previous facial blood flow pattern, and an increase above a second predetermined threshold in the respiration rate compared to the previous respiration rate. - View Dependent Claims (14, 15)
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16. A system configured to calculate extent of congestive heart failure (CHF), comprising:
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smartglasses configured to be worn on a user'"'"'s head; an inward-facing camera, physically coupled to the smartglasses, configured to capture images of an area comprising skin on the user'"'"'s head;
wherein the area is larger than 4 cm{umlaut over (
)}2, and the inward-facing camera is mounted more than 5 mm away from the user'"'"'s head; anda computer configured to; receive a first set of the images taken while the user was at rest and prior to a period during which the user performed physical activity; receive a second set of the images taken within ten minutes after the period; and calculate the extent of CHF based on differences in facial blood flow patterns recognizable in the first and second sets of the images. - View Dependent Claims (17, 18, 19, 20)
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Specification