# US 10,117,619 B2 · Optical sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,117,619 B2 - Document ID: US10117619B2 - Status: Granted - Kind: B2 - Application number: 14/558,215 - Filed: 2014-12-02 - Published: 2015-06-11 - Granted: 2018-11-06 - Earliest claimed: 2013-12-11 - Assignees: Nihon Kohden Corporation - Applicants: Nihon Kohden Corporation - Inventors: Naoki Kobayashi; Teiji Ukawa; Kazumasa Ito; Masahiro Takeuchi; Yoshinori Ueda; Hiroko Hagiwara - Web page: https://patentgrep.com/patent/US10117619B2 ## CPC - A61B 5/6826: {Finger} - A61B 5/0013: {Medical image data (A61B1/00011, A61B6/56, A61B8/56 take precedence)} - A61B 5/14552: {Details of sensors specially adapted therefor} - A61B 5/6831: {Straps, bands or harnesses} - A61B 5/6838: {Clamps or clips} - A61B 5/6843: {Monitoring or controlling sensor contact pressure} - A61B 5/72: {Signal processing specially adapted for physiological signals or for diagnostic purposes} - A61B 5/7405: {using sound} - A61B 2503/045: Newborns, e.g. premature baby monitoring - A61B 2560/0425: Ergonomically shaped housings (A61B2560/0418 takes precedence) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An optical sensor includes: a light emitter; a light receiver; a rod-shaped grasping member in which one of the light emitter and the light receiver is disposed, and which is to be grasped by a hand of a subject; and a clamping member which is adapted to clamp a part of the hand of the subject with the grasping member, another one of the light emitter and the light receiver being disposed in the clamping member. ## Claims ### Claim 1 An optical sensor comprising: a light emitter; a light receiver; a rod-shaped grasping member in which one of the light emitter and the light receiver is disposed, the rod-shaped grasping member including a curved circumferential surface configured to be grasped by a hand of a subject; and a clamping member which is adapted to clamp a part of the hand of the subject between the clamping member and the rod-shaped grasping member, another one of the light emitter and the light receiver being disposed in the clamping member, wherein the clamping member extends in a longitudinal direction of the rod-shaped grasping member, and wherein the clamping member and the rod-shaped grasping member are arranged such that the part of the hand of the subject is insertable between the clamping member and the rod-shaped grasping member in a direction intersecting the longitudinal direction of the rod-shaped grasping member. ### Claim 2 (depends on 1) The optical sensor according to claim 1, further comprising: a scattering layer which is placed in an optical path of light emitted from the light emitter. ### Claim 3 (depends on 1) The optical sensor according to claim 1, wherein the light emitter is disposed in one of the grasping member and the clamping member so that light emitted from the light emitter passes through a plurality of fingers of the subject when the plurality of fingers is placed between the grasping member and the clamping member. ### Claim 4 (depends on 3) The optical sensor according to claim 3, further comprising: a light shielding member provided between the grasping member and the clamping member and adapted to be disposed between the plurality of fingers when the plurality of fingers is placed between the grasping member and the clamping member. ### Claim 5 (depends on 1) The optical sensor according to claim 1, further comprising: a belt member, wherein one end of the belt member is fixed to one of the grasping member and the clamping member, and a part of the belt member is attachable to and detachable from the other of the grasping member and the clamping member. ### Claim 6 (depends on 5) The optical sensor according to claim 5, wherein the part of the belt member is variable. ### Claim 7 (depends on 1) The optical sensor according to claim 1, wherein the grasping member has a shape of a rotating body. ### Claim 8 (depends on 1) The optical sensor according to claim 1, wherein a positional relationship between the light emitter and the light receiver is constant. ### Claim 9 (depends on 1) The optical sensor according to claim 1, wherein at least a part of the grasping member is flexible. ### Claim 10 (depends on 9) The optical sensor according to claim 9, wherein the grasping member includes a first portion in which at least a thumb and index finger of the subject are to be placed, and a second portion in which at least one of the light emitter and the light receiver is disposed, the first portion is higher in rigidity than the second portion, and the second portion is higher in flexibility than the first portion. ### Claim 11 (depends on 1) The optical sensor according to claim 1, wherein an outer circumferential surface of the grasping member includes a recess having a shape which is adapted to receive a part of a right hand of the subject. ### Claim 12 (depends on 1) The optical sensor according to claim 1, further comprising: an indicator guiding grasping by the right hand of the subject. ### Claim 13 (depends on 1) The optical sensor according to claim 1, further comprising: a sensor which is configured to detect a state change of at least a part of the grasping member, the change being due to a grasping pressure exerted by the subject. ### Claim 14 (depends on 1) The optical sensor according to claim 1, further comprising: a sound outputting section which is configured to output predetermined sound. ### Claim 15 (depends on 1) The optical sensor according to claim 1, further comprising: a wireless communicating section which is configured to transmit a detection signal from the light receiver to an external apparatus and to receive a control signal for the light emitter from the external apparatus. ### Claim 16 (depends on 15) The optical sensor according to claim 15, further comprising: a calculating section which is configured to perform a calculation process on the detection signal and the control signal. ### Claim 17 (depends on 1) The optical sensor according to claim 1, wherein the light emitter and the light receiver are supported by a member having a light shielding property.