# US 11,432,749 B2 · Non-contact brain blood oxygen detecting system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,432,749 B2 - Document ID: US11432749B2 - Status: Granted - Kind: B2 - Application number: 16/958,706 - Filed: 2017-12-28 - Published: 2020-11-12 - Granted: 2022-09-06 - Earliest claimed: 2017-12-28 - Assignees: Institute of Automation, Chinese Academy of Sciences - Applicants: Institute of Automation, Chinese Academy of Sciences - Inventors: Tianzi Jiang; Xin Zhang; Nianming Zuo - Web page: https://patentgrep.com/patent/US11432749B2 ## CPC - A61B 5/14553: {specially adapted for cerebral tissue} - A61B 5/002: {Monitoring the patient using a local or closed circuit, e.g. in a room or building (A61B5/0017 takes precedence)} - A61B 5/14552: {Details of sensors specially adapted therefor} - A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)} - A61B 5/7475: {User input or interface means, e.g. keyboard, pointing device, joystick} - A61B 2560/0214: of power generation or supply - A61B 2560/0443: Modular apparatus - A61B 2560/0475: Special features of memory means, e.g. removable memory cards - A61B 2562/0238: Optical sensor arrangements for performing transmission measurements on body tissue - A61B 2562/0242: for varying or adjusting the optical path length in the tissue - A61B 2562/185: Optical shielding, e.g. baffles - A61B 2562/227: Sensors with electrical connectors - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A non-contact brain blood oxygen detecting system includes a mobile terminal device. The mobile terminal device includes a control module, a transmitting module, a receiving module and a display module. The control module is connected to the transmitting module, the receiving module and the display module, respectively. The transmitting module in the mobile terminal device is configured to emit dual-wavelength near-infrared light to a detected subject. The receiving module is configured to receive a light signal after propagation fed back by the detected subject, and to perform data conversion on the received light signal to obtain a digital signal containing blood oxygen information. The control module is configured to obtain the blood oxygen information of the detected subject according to the digital signal obtained by the receiving module. The display module is configured to display the blood oxygen information obtained by the control module. ## Claims ### Claim 1 A non-contact brain blood oxygen detecting system, comprising a mobile terminal device, wherein the mobile terminal device comprises: a transmitter to emit dual-wavelength near-infrared light to a detected subject; a receiver to receive a light signal, wherein the light signal is propagated from the transmitter and fed back by the detected subject, and the receiver is further configured to perform data conversion on the light signal to obtain a digital signal containing blood oxygen information; a first rotator attached to the mobile terminal device and arranged on the transmitter to rotate a first specific angle to change a transmitting direction of the transmitter; a second rotator attached to the mobile terminal device and arranged on the receiver to rotate a second specific angle to change a receiving direction of the receiver; a controller to obtain the blood oxygen information of the detected subject according to the digital signal obtained by the receiver; and a display to display the blood oxygen information obtained by the controller. ### Claim 2 (depends on 1) The non-contact brain blood oxygen detecting system according to claim 1, wherein, a light filter is arranged on the receiver to filter out an interference light signal. ### Claim 3 (depends on 2) The non-contact brain blood oxygen detecting system according to claim 2, wherein, a passband range of the light filter is 600-1000 nm. ### Claim 4 (depends on 2) The non-contact brain blood oxygen detecting system according to claim 2, wherein, the mobile terminal device further comprises a memory, a clock, a power supply and a communication interface; the memory is configured to store working data of the mobile terminal device; the clock is configured to provide a working clock signal to the mobile terminal device; the power supply is configured to supply power to the mobile terminal device; and the communication is configured to communicate with an external device. ### Claim 5 (depends on 2) The non-contact brain blood oxygen detecting system according to claim 2, wherein, comprising only one transmitter and two receivers. ### Claim 6 (depends on 2) The non-contact brain blood oxygen detecting system according to claim 2, further comprising a processing device, wherein, the processing device is connected to and communicates with the mobile terminal device; and the processing device is configured to receive the blood oxygen information obtained by the controller in the mobile terminal device, and the processing device is further configured to perform data analysis on the blood oxygen information and display the blood oxygen information. ### Claim 7 (depends on 1) The non-contact brain blood oxygen detecting system according to claim 1, wherein, the mobile terminal device further comprises a memory, a clock, a power supply and a communication interface; the memory is configured to store working data of the mobile terminal device; the clock is configured to provide a working clock signal to the mobile terminal device; the power supply is configured to supply power to the mobile terminal device; and the communication interface is configured to communicate with an external device. ### Claim 8 (depends on 7) The non-contact brain blood oxygen detecting system according to claim 7, wherein, the power supply comprises a battery and a charging interface, and the charging interface is configured to connect to an external power source to charge the battery; and the charging interface is a USB interface, and the USB interface is further configured to communicate with the external device. ### Claim 9 (depends on 7) The non-contact brain blood oxygen detecting system according to claim 7, wherein, the communication interface is Bluetooth. ### Claim 10 (depends on 7) The non-contact brain blood oxygen detecting system according to claim 7, wherein, the mobile terminal device further comprises a control panel, and a plurality of preset control buttons are arranged on the control panel; and the plurality of preset control buttons are configured to control the mobile terminal device to perform operations respectively corresponding to the plurality of preset control buttons. ### Claim 11 (depends on 1) The non-contact brain blood oxygen detecting system according to claim 1, comprising only one transmitter and two receivers. ### Claim 12 (depends on 11) The non-contact brain blood oxygen detecting system according to claim 11, wherein the distances between the two receivers and the transmitter are 3 cm and 4 cm, respectively. ### Claim 13 (depends on 1) The non-contact brain blood oxygen detecting system according to claim 1, further comprising a processing device, wherein, the processing device is connected to and communicates with the mobile terminal device; and the processing device is configured to receive the blood oxygen information obtained by the controller in the mobile terminal device, and the processing device is further configured to perform data analysis on the blood oxygen information and display the blood oxygen information. ### Claim 14 (depends on 1) The non-contact brain blood oxygen detecting system according to claim 1, wherein the controller further compares the obtained blood oxygen information of the detected subject to a preset sample and generates a disease status of the detected subject based on a result of the comparison; and wherein the display further displays the generated disease status of the detected subject.