# US 12,241,793 B2 · Electronically readable colorimetric sensor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,241,793 B2 - Document ID: US12241793B2 - Status: Granted - Kind: B2 - Application number: 17/511,722 - Filed: 2021-10-27 - Published: 2022-04-14 - Granted: 2025-03-04 - Earliest claimed: 2019-06-05 - Assignees: Acelorex, Inc. - Applicants: Acelorex, Inc. - Inventors: Brendan Casey; Michael Leo; George Gibson - Web page: https://patentgrep.com/patent/US12241793B2 ## CPC - G01D 5/30: the beams of light being detected by photocells - G01K 11/12: using changes in colour, translucency or reflectance - G01H 9/00: Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means - G01K 1/02: Means for indicating or recording specially adapted for thermometers - G01K 3/04: in respect of time - G01N 21/78: producing a change of colour - G01N 21/80: Indicating pH value - H04W 4/38: for collecting sensor information - H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication - A61M 5/20: Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically (A61M5/142 takes precedence) - A61M 5/24: Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or cartridges, e.g. automatic - A61M 5/5086: {for indicating if defective, used, tampered with or unsterile} - A61M 2205/3368: Temperature - A61M 2205/3569: sublocal, e.g. between console and disposable - A61M 2205/8287: operated by an external magnetic or electromagnetic field - G01N 2021/0118: {Apparatus with remote processing} - G01D: MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR - G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00) - G01H: MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A colorimetric based sensor system includes a low power communication system to harvest energy from an interrogator and to broadcast information to the interrogator; a controller operatively connected to the low power communication system; a light emitter, operatively connected to the controller, to emit light; a light detector, operatively connected to the controller, to convert receive light into electrical signals; and a colorimetric based sensor, having a changeable color patch and in optical communication with the light detector and the light emitter, to measure a condition of an object of interest. ## Claims ### Claim 1 A colorimetric based sensor system comprising; a low power communication system to receive an interrogation signal from an interrogator and to broadcast data to the interrogator; a controller operatively connected to said low power communication system; a light emitter, operatively connected to said controller, to emit light; a light detector, operatively connected to said controller, to convert receive light into electrical signals; and a colorimetric based sensor, having a changeable color patch and in optical communication with said light detector and said light emitter, to measure a condition of an object of interest; said light emitter being positioned to emit light onto said changeable color patch of said colorimetric based sensor; said light detector being positioned to receive light reflected from said changeable color patch of said colorimetric based sensor said colorimetric based sensor causing said changeable color patch to change color based upon a measured condition of the object of interest, the measured condition of the object of interest being vibration; said light detector communicating the electrical signals converted from the received light to said controller; said controller, in response to the received electrical signals from said light detector, generating data representing a characteristic of the measured condition of the object of interest; said controller, in response to the interrogation signal received by said low power communication system, causing said low power communication system to broadcast the generated data to the interrogator. ### Claim 2 (depends on 1) The colorimetric based sensor system as claimed in claim 1, wherein said low power communication system includes an antenna and a microchip. ### Claim 3 (depends on 1) The colorimetric based sensor system as claimed in claim 1, wherein said low power communication system is a radio frequency identification device. ### Claim 4 (depends on 1) The colorimetric based sensor system as claimed in claim 1, wherein said low power communication system is a near field communication device. ### Claim 5 (depends on 1) The colorimetric based sensor system as claimed in claim 1, wherein said low power communication system is a Bluetooth™ low energy device. ### Claim 6 (depends on 1) The colorimetric based sensor system as claimed in claim 1, wherein a changing of a color of said changeable color patch is reversible. ### Claim 7 (depends on 1) The colorimetric based sensor system as claimed in claim 1, wherein a changing of a color of said changeable color patch is irreversible. ### Claim 8 (depends on 1) The colorimetric based sensor system as claimed in claim 1, further comprising: an active power source; and a memory; said controller, in response to the received electrical signals from said light detector, storing the generated data in said memory; said controller, in response to the interrogation signal received by said low power communication system, transferring the generated data from said memory to said low power communication system and causing said low power communication system to broadcast the transferred data to the interrogator. ### Claim 9 A colorimetric based sensor system comprising: a low power communication system to receive an interrogation signal from an interrogator and to broadcast data to the interrogator; a controller operatively connected to said low power communication system; a light emitter, operatively connected to said controller, to emit light; a light detector, operatively connected to said controller, to convert receive light into electrical signals; a colorimetric based sensor, having a changeable color patch and in optical communication with said light detector and said light emitter, to measure a condition of an object of interest; and a thermal material, thermally connected to said colorimetric based sensor, having thermal characteristics such that said thermal material reaches a predetermined temperature after a predetermined period of time; said colorimetric based sensor causing said changeable color patch to change color when said thermal material has reached said predetermined temperature; said light emitter being positioned to emit light onto said changeable color patch of said colorimetric based sensor; said light detector being positioned to receive light reflected from said changeable color patch of said colorimetric based sensor said colorimetric based sensor causing said changeable color patch to change color based upon a measured condition of the object of interest; said light detector communicating the electrical signals converted from the received light to said controller; said controller, in response to the received electrical signals from said light detector, generating data representing a characteristic of the measured condition of the object of interest; said controller, in response to the interrogation signal received by said low power communication system, causing said low power communication system to broadcast the generated data to the interrogator. ### Claim 10 (depends on 9) The colorimetric based sensor system as claimed in claim 9, wherein said colorimetric based sensor is encased in said thermal material. ### Claim 11 (depends on 9) The colorimetric based sensor system as claimed in claim 9, further comprising: an active power source; and a memory; said controller, in response to the received electrical signals from said light detector, storing the generated data in said memory; said controller, in response to the interrogation signal received by said low power communication system, transferring the generated data from said memory to said low power communication system and causing said low power communication system to broadcast the transferred data to the interrogator. ### Claim 12 (depends on 9) The colorimetric based sensor system as claimed in claim 9, wherein said low power communication system includes an antenna and a microchip. ### Claim 13 (depends on 9) The colorimetric based sensor system as claimed in claim 9, wherein said low power communication system is a radio frequency identification device. ### Claim 14 (depends on 9) The colorimetric based sensor system as claimed in claim 9, wherein said low power communication system is a near field communication device. ### Claim 15 A colorimetric based sensor system comprising: a low power communication system to receive an interrogation signal from an interrogator and to broadcast data to the interrogator; a controller operatively connected to said low power communication system; a light emitter, operatively connected to said controller, to emit light; a light detector, operatively connected to said controller, to convert receive light into electrical signals; a colorimetric based sensor, having a changeable color patch and in optical communication with said light detector and said light emitter, to measure a condition of an object of interest; and a thermal mass, thermally connected to said colorimetric based sensor, having thermal characteristics such that said thermal mass reaches a predetermined temperature after a predetermined period of time; said colorimetric based sensor causing said changeable color patch to change color when said thermal mass has reached said predetermined temperature; said light emitter being positioned to emit light onto said changeable color patch of said colorimetric based sensor; said light detector being positioned to receive light reflected from said changeable color patch of said colorimetric based sensor said colorimetric based sensor causing said changeable color patch to change color based upon a measured condition of the object of interest; said light detector communicating the electrical signals converted from the received light to said controller; said controller, in response to the received electrical signals from said light detector, generating data representing a characteristic of the measured condition of the object of interest; said controller, in response to the interrogation signal received by said low power communication system, causing said low power communication system to broadcast the generated data to the interrogator. ### Claim 16 (depends on 15) The colorimetric based sensor system as claimed in claim 15, wherein said colorimetric based sensor is encased in said thermal mass. ### Claim 17 (depends on 15) The colorimetric based sensor system as claimed in claim 15, further comprising: an active power source; and a memory; said controller, in response to the received electrical signals from said light detector, storing the generated data in said memory; said controller, in response to the interrogation signal received by said low power communication system, transferring the generated data from said memory to said low power communication system and causing said low power communication system to broadcast the transferred data to the interrogator. ### Claim 18 (depends on 15) The colorimetric based sensor system as claimed in claim 15, wherein said low power communication system includes an antenna and a microchip. ### Claim 19 (depends on 15) The colorimetric based sensor system as claimed in claim 15, wherein said low power communication system is a radio frequency identification device. ### Claim 20 (depends on 15) The colorimetric based sensor system as claimed in claim 15, wherein said low power communication system is a near field communication device.