Pulse wave sensor device
First Claim
Patent Images
1. A pulse wave sensor device comprising:
- a device body having a contoured shape adapted to be gripped by a hand of a user;
a measurement sensor disposed on the device body and having;
a light emitter configured to emit light to a measurement location on a palm of the hand when the user grips the device body, and alight receiver configured to detect light reflected by the measurement location; and
a protruding member that extends from the device body and that is adapted to contact a contact location of the palm when the user grips the device body, with the contact location not being a center portion or a wrist-side portion of the palm,wherein the protruding member is adapted to reduce compression at the center portion and the wrist-side portion of the palm of the hand, which are upstream of blood flow in the hand at the measurement location,wherein the protruding member is step shaped with a planar step surface that contacts the contact location of the palm when the user grips the device body and includes side surfaces that extend at an angle from the planar step surface to the device body to create a gap between the device body and a portion of the palm different than the contact location and different than the measurement location, such that the protruding member reduces the blockage of blood flow in the hand at the measurement location.
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Accused Products
Abstract
A light emitter and a light receiver are provided at a side surface of a lever. When a user grips the lever with his hand, the light emitter and the light receiver are positioned close to bases of the middle finger, a ring finger, and a little finger, as a measurement portion of a palm. A blood-flow blockage reducing component protrudes to contact a portion between the index finger and the middle finger, and a thumb, as a contact portion of the palm.
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Citations
15 Claims
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1. A pulse wave sensor device comprising:
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a device body having a contoured shape adapted to be gripped by a hand of a user; a measurement sensor disposed on the device body and having; a light emitter configured to emit light to a measurement location on a palm of the hand when the user grips the device body, and a light receiver configured to detect light reflected by the measurement location; and a protruding member that extends from the device body and that is adapted to contact a contact location of the palm when the user grips the device body, with the contact location not being a center portion or a wrist-side portion of the palm, wherein the protruding member is adapted to reduce compression at the center portion and the wrist-side portion of the palm of the hand, which are upstream of blood flow in the hand at the measurement location, wherein the protruding member is step shaped with a planar step surface that contacts the contact location of the palm when the user grips the device body and includes side surfaces that extend at an angle from the planar step surface to the device body to create a gap between the device body and a portion of the palm different than the contact location and different than the measurement location, such that the protruding member reduces the blockage of blood flow in the hand at the measurement location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A pulse wave sensor device comprising:
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a device body extending in a first direction and having a contoured shape adapted to be gripped by a hand of a user; a guide protrusion extending from a top of the device body; a measurement sensor disposed on the device body and having; a light emitter configured to emit light to a measurement location on the hand when the user grips the device body, and a light receiver configured to detect light reflected by the measurement location; and a protruding member that extends from the device body and that is adapted to contact a contact location of the hand when the user grips the device body, such that the protruding member reduces blockage of blood flow in the hand at the measurement location, wherein the protruding member is disposed at a height that is lower than a height of the guide protrusion relative to the first direction, and wherein the measurement sensor is disposed at a height that is lower than the height of the protruding member relative to the first direction wherein the guide protrusion is configured to guide the hand of the user when the user grips the device body such that the protruding member contacts the contact location of the hand.
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Specification