Perioperative cognitive disorder predicting and monitoring device

Abstract

The invention discloses a perioperative cognitive impairment predicting and monitoring device, relates to the technical field of medical instruments, and aims to solve the problem of low accuracy of perioperative cognitive impairment predicting and monitoring for children in the prior art. An electroencephalogram signal acquisition module, an eye movement tracking module, a behavior interaction module, a physiological parameter monitoring module and a data processing and analyzing module are integrated in the head-mounted VR glasses; the electroencephalogram signal acquisition module is used for acquiring an electroencephalogram signal of a child, processing the electroencephalogram signal and then transmitting the electroencephalogram signal to the data processing and analyzing module; the eye movement tracking module is used for capturing motion images of eyeballs of children, obtaining fixation points, eye jump frequencies and pupil diameter change parameters of the eyeballs and transmitting the parameters to the data processing and analyzing module. The method has the advantage that the accuracy of predicting and monitoring the cognitive impairment in the perioperative period of children is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, more particularly to a perioperative cognitive impairment prediction and monitoring device. BACKGROUND

[0002] Perioperative cognitive impairment is a common neurological complication after anesthesia surgery in patients, mainly manifested as memory loss, lack of concentration, cognitive decline and the like, which seriously affects the subsequent quality of life of patients.

[0003] At present, some existing monitoring devices are mainly designed for adults, without considering the cognitive characteristics and physiological characteristics of children. The prediction and monitoring of perioperative cognitive impairment in children mainly rely on postoperative scale evaluation, which has the problems of strong subjectivity, time lag in evaluation, low cooperation degree of children and the like, and cannot comprehensively reflect the cognitive state of children, resulting in low accuracy of prediction and monitoring. In view of this, we propose a perioperative cognitive impairment prediction and monitoring device. SUMMARY

[0004] The present application aims to provide a perioperative cognitive impairment prediction and monitoring device, which aims to solve the problem of low accuracy of perioperative cognitive impairment prediction and monitoring for children in the prior art.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a perioperative cognitive impairment prediction and monitoring device, comprising a head-mounted VR glasses, wherein the head-mounted VR glasses are integrated with an electroencephalogram signal acquisition module, an eye movement tracking module, a behavior interaction module, a physiological parameter monitoring module and a data processing and analysis module. The electroencephalogram signal acquisition module is used to acquire the electroencephalogram signal of the child, and to transmit the processed electroencephalogram signal to the data processing and analysis module. The eye movement tracking module is used to capture the movement image of the eyeball of the child, obtain the gaze point, saccade frequency and pupil diameter change parameters of the eyeball and transmit them to the data processing and analysis module. The behavior interaction module is used to generate an animated game, a playground or a zoo interactive cognitive scene suitable for children and receive the operation behavior data of the children, and transmit the operation behavior data to the data processing and analysis module. The physiological parameter monitoring module is used to acquire the heart rate and blood oxygen saturation data of the child and transmit them to the data processing and analysis module. The data processing and analysis module is used to receive the data transmitted by each module, process, feature extract and comprehensively analyze the data, predict the occurrence risk of perioperative cognitive impairment in children, and real-time monitor the cognitive state change of the children, and generate a corresponding evaluation report.

[0006] Preferably, the brain electrical signal acquisition module comprises a brain electrical signal acquisition sensor and an electrode sheet thereof, the brain electrical signal acquisition sensor is integrated inside the head-mounted VR glasses, and the electrode sheet is arranged outside the head-mounted VR glasses and connected with the brain electrical signal acquisition sensor through a wire.

[0007] Preferably, the eye movement tracking module comprises an infrared eye movement tracking sensor and an infrared light source integrated inside the head-mounted VR glasses, the infrared light source is used for illuminating the eyeball of the child, and the infrared eye movement tracking sensor is used for capturing the movement image of the eyeball of the child, and analyzing to obtain the gaze point, saccade frequency and pupil diameter change parameter of the eyeball of the child.

[0008] Preferably, the behavior interaction module comprises a VR scene generation unit integrated inside the head-mounted VR glasses and a separate operation handle, the VR scene generation unit is used for generating an animated game, playground or zoo interactive cognitive scene suitable for the child, and the operation handle is used for the child to operate in the VR scene to generate operation behavior data.

[0009] Preferably, the physiological parameter monitoring module comprises a heart rate sensor and a blood oxygen saturation sensor, the heart rate sensor is arranged at a position where the head-mounted VR glasses contact the forehead of the child to acquire heart rate data, and the blood oxygen saturation sensor is arranged at a position where the operation handle contacts the finger of the child to acquire blood oxygen saturation data.

[0010] Preferably, the data processing and analysis module comprises a data processing and analysis unit and a data storage unit integrated inside the head-mounted VR glasses, the data storage unit is used for storing raw data and data analysis results acquired by the brain electrical signal acquisition module, the eye movement tracking module, the behavior interaction module and the physiological parameter monitoring module, and the data processing and analysis unit is used for receiving, processing and analyzing data.

[0011] Preferably, a wireless communication module is further included, the wireless communication module is integrated inside the head-mounted VR glasses, and the data processing and analysis module is connected with an external terminal device through the wireless communication module to send the generated evaluation report to the external terminal device.

[0012] Preferably, a silica gel pad is arranged inside the head-mounted VR glasses, and the silica gel pad is located at a position where the head-mounted VR glasses contact the head of the child.

[0013] Compared with the prior art, the present application has the following beneficial effects: The application realizes accurate prediction through multi-dimensional data cross verification, real-time monitoring of cognitive state changes of children to help timely adjust the nursing scheme, and improves the cooperation degree of children with the help of VR interactive scenes, can provide comprehensive evaluation basis for medical staff, and improves the accuracy of predicting and monitoring cognitive impairment of children during the perioperative period.

[0014] The application generates interactive cognitive scenes such as animated games, amusement parks or zoos suitable for children, and matches operation handles to let children participate in them, which can significantly improve the cooperation degree of children and reduce their resistance to the monitoring process, ensuring the smooth progress of the data collection process.

[0015] The application can accurately capture the motion image of the eyeball of the child without being disturbed by the ambient light through the integrated infrared eye tracking sensor and infrared light source, so as to obtain key parameters such as fixation point, saccade frequency and pupil diameter change, which can not only reflect the attention degree of the child to specific elements in the VR scene and the cognitive processing speed, but also indirectly reflect the emotional fluctuation, provide detailed and reliable basis for evaluating the attention allocation and cognitive interest of the child, and further enrich the dimension of cognitive state analysis. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of the application; Fig. 2 It is a sectional view of the head-mounted VR glasses in the application.

[0017] Explanation of figure numbers: 1, head-mounted VR glasses; 2, electroencephalogram signal acquisition sensor; 3, electrode sheet; 4, infrared eye tracking sensor; 5, infrared light source; 6, VR scene generation unit; 7, operation handle; 8, heart rate sensor; 9, blood oxygen saturation sensor; 10, data processing and analysis unit; 11, data storage unit; 12, wireless communication module; 13, silica gel pad. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all. EMBODIMENT

[0019] As Figs. 1-2As shown, a perioperative cognitive impairment prediction and monitoring device comprises a head-mounted VR glasses 1, and the head-mounted VR glasses 1 is integrated with an electroencephalogram signal acquisition module, an eye movement tracking module, a behavior interaction module, a physiological parameter monitoring module, and a data processing and analysis module. The electroencephalogram signal acquisition module is used to acquire the electroencephalogram signal of the child, and the electroencephalogram signal is processed and transmitted to the data processing and analysis module. The eye movement tracking module is used to capture the movement image of the eyeball of the child, obtain the gaze point, saccade frequency and pupil diameter change parameter of the eyeball and transmit them to the data processing and analysis module. The behavior interaction module is used to generate an animated game, a playground or a zoo interactive cognitive scene suitable for the child and receive the operation behavior data of the child, and transmit the operation behavior data to the data processing and analysis module. The physiological parameter monitoring module is used to acquire the heart rate and blood oxygen saturation data of the child and transmit them to the data processing and analysis module. The data processing and analysis module is used to receive the data transmitted by each module, process, feature extract and comprehensively analyze, predict the occurrence risk of perioperative cognitive impairment of the child, and real-time monitor the cognitive state change of the child, and generate a corresponding evaluation report.

[0020] Specifically, by wearing the head-mounted VR glasses 1 integrated with the electroencephalogram signal acquisition module, the eye movement tracking module, the behavior interaction module, the physiological parameter monitoring module and the data processing and analysis module for the child, the modules are synchronously operated, wherein the electroencephalogram signal acquisition module acquires and processes the electroencephalogram signal of the child, the eye movement tracking module captures the eyeball movement of the child to obtain relevant parameters, the behavior interaction module generates an interactive cognitive scene suitable for the child and receives the operation behavior data thereof, and the physiological parameter monitoring module acquires the heart rate and blood oxygen saturation data of the child, and these data are transmitted to the data processing and analysis module. The data processing and analysis module processes, feature extracts and comprehensively analyzes the received data, and generates an evaluation report, so as to realize accurate prediction through multi-dimensional data cross verification, real-time monitoring of cognitive state change of the child to help timely adjust the nursing scheme, improve the cooperation degree of the child by means of the VR interactive scene, and also provide comprehensive evaluation basis for medical staff, and improve the accuracy of perioperative cognitive impairment prediction and monitoring of the child.

[0021] Further, the electroencephalogram signal acquisition module comprises an electroencephalogram signal acquisition sensor 2 and an electrode sheet 3 thereof, the electroencephalogram signal acquisition sensor 2 is integrated inside the head-mounted VR glasses 1, and the electrode sheet 3 is arranged outside the head-mounted VR glasses 1 and connected with the electroencephalogram signal acquisition sensor 2 through a wire.

[0022] Specifically, the electroencephalogram signal collection sensor 2 is flexibly attached to the child's brain through its external electrode sheet 3 to collect and process the child's electroencephalogram signal, ensuring the accuracy of the electroencephalogram signal collection and providing reliable data for subsequent analysis of the child's cognitive state.

[0023] Further, the eye movement tracking module includes an infrared eye movement tracking sensor 4 and an infrared light source 5 integrated inside the head-mounted VR glasses 1. The infrared light source 5 is used to illuminate the child's eyeball, and the infrared eye movement tracking sensor 4 is used to capture the movement image of the child's eyeball, analyze and obtain the fixation point, saccade frequency and pupil diameter change parameters of the child's eyeball.

[0024] Specifically, the infrared technology is not affected by environmental light and can accurately track the details of eye movement. The fixation point reflects the degree of attention of the child to specific elements in the VR scene, the saccade frequency reflects the cognitive processing speed, and the pupil diameter change indirectly reflects the emotional fluctuations, providing a basis for evaluating the child's attention allocation and cognitive interest.

[0025] Further, the behavior interaction module includes a VR scene generation unit 6 integrated inside the head-mounted VR glasses 1 and a separate operation handle 7. The VR scene generation unit 6 is used to generate animated games, amusement parks or zoo interactive cognitive scenes suitable for children, and the operation handle 7 is used for children to operate in the VR scene to generate operation behavior data.

[0026] Specifically, the animated games, amusement parks or zoo interactive cognitive scenes suitable for children can improve the child's participation and stimulate the willingness to interact actively. The behavior data recorded by the operation handle 7 can directly reflect the child's hands-on ability, decision-making ability and cognitive understanding level, and realize immersive evaluation combined with scene content.

[0027] Further, the physiological parameter monitoring module includes a heart rate sensor 8 and an oxygen saturation sensor 9. The heart rate sensor 8 is arranged at the position where the head-mounted VR glasses 1 contact the child's forehead to collect heart rate data, and the oxygen saturation sensor 9 is arranged at the position where the operation handle 7 contacts the child's fingers to collect oxygen saturation data.

[0028] Specifically, heart rate and oxygen saturation are core indicators reflecting the child's physiological state. Heart rate changes can reflect emotional tension or excitement, and oxygen saturation reflects the body's oxygen supply state. Moreover, the heart rate sensor 8 and the oxygen saturation sensor 9 naturally adhere to the child without additional wearing burden, ensuring the continuity and comfort of data collection.

[0029] Further, the data processing and analysis module includes a data processing and analysis unit 10 and a data storage unit 11 integrated inside the head-mounted VR glasses 1, the data storage unit 11 is used to store the raw data collected by the brain electrical signal acquisition module, the eye tracking module, the behavior interaction module and the physiological parameter monitoring module and the data analysis results, and the data processing and analysis unit 10 is used to receive, process and analyze data.

[0030] Specifically, the data processing and analysis unit 10 processes, extracts features and comprehensively analyzes the received data, thereby realizing accurate prediction through multi-dimensional data cross-validation, and the storage unit can store data to retain complete data tracks, facilitating subsequent backtracking and deep analysis, and providing data support for generating comprehensive cognitive evaluation reports.

[0031] Further, it further includes a wireless communication module 12 integrated inside the head-mounted VR glasses 1, and the data processing and analysis module is connected with the external terminal device through the wireless communication module 12, and the generated evaluation report is sent to the external terminal device.

[0032] Specifically, the evaluation report is synchronized to the external terminal in real time through the wireless communication module 12, so that the guardian or medical personnel can timely understand the cognitive development status of the child, and realize remote monitoring and intervention guidance.

[0033] Further, the inside of the head-mounted VR glasses 1 is provided with a silica gel pad 13, and the silica gel pad 13 is located at the position where the head-mounted VR glasses 1 contacts the head of the child.

[0034] Specifically, the silica gel pad 13 made of silica gel material can reduce the compression of the head-mounted VR glasses 1 on the head of the child, improve the wearing comfort, and at the same time enhance the fit of the head-mounted VR glasses 1 with the head, prevent slipping during use, and ensure the data acquisition quality.

[0035] Working principle: This embodiment provides a perioperative cognitive impairment prediction and monitoring device. By having children wear head-mounted VR glasses 1 that integrate an EEG signal acquisition module, an eye tracking module, a behavioral interaction module, a physiological parameter monitoring module, and a data processing and analysis module, each module operates synchronously. The EEG signal acquisition module collects and processes the child's EEG signals, the eye tracking module captures the child's eye movements to obtain relevant parameters, the behavioral interaction module generates an interactive cognitive scene suitable for the child and receives its operational behavior data, and the physiological parameter monitoring module collects the child's heart rate and blood oxygen saturation data. All of this data is transmitted to the data processing and analysis module, which processes, extracts features, and comprehensively analyzes the received data, and generates an evaluation report, thereby achieving accurate prediction through multi-dimensional data cross-validation, real-time monitoring of changes in the child's cognitive state to help timely adjust the nursing plan, and using the VR interactive scene to improve the child's cooperation. It can also provide a comprehensive evaluation basis for medical staff and improve the accuracy of prediction and monitoring of perioperative cognitive impairment in children.

[0036] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A perioperative cognitive impairment prediction and monitoring device, characterized in that: The invention comprises a head-mounted VR glasses (1), wherein the head-mounted VR glasses (1) are integrated with a brain electric signal acquisition module, an eye movement tracking module, a behavior interaction module, a physiological parameter monitoring module, and a data processing and analysis module; The EEG signal acquisition module is used to collect the EEG signals of children, process the EEG signals and transmit them to the data processing and analysis module; The eye tracking module is used to capture the movement image of the child's eyeballs, obtain the eye's gaze point, eye saccade frequency and pupil diameter change parameters, and transmit them to the data processing and analysis module; The behavior interaction module is used to generate an animated game, a playground or a zoo interactive cognitive scene suitable for children and receive the children's operation behavior data, and transmit the operation behavior data to the data processing and analysis module; The physiological parameter monitoring module is used to collect the child's heart rate and blood oxygen saturation data and transmit them to the data processing and analysis module; The data processing and analysis module is used to receive data transmitted by each module, perform processing, feature extraction and comprehensive analysis, predict the risk of perioperative cognitive impairment in children, monitor changes in children's cognitive status in real time, and generate corresponding assessment reports.

2. The perioperative cognitive impairment prediction and monitoring device according to claim 1, characterized in that: The electroencephalogram signal acquisition module comprises an electroencephalogram signal acquisition sensor (2) and an electrode sheet (3) thereof; the electroencephalogram signal acquisition sensor (2) is integrated inside the head-mounted VR glasses (1); and the electrode sheet (3) is arranged outside the head-mounted VR glasses (1) and connected to the electroencephalogram signal acquisition sensor (2) via a wire.

3. The perioperative cognitive impairment prediction and monitoring device according to claim 1, characterized in that: The eye tracking module comprises an infrared eye tracking sensor (4) and an infrared light source (5) integrated inside the head-mounted VR glasses (1), wherein the infrared light source (5) is used to illuminate the child's eyeballs, and the infrared eye tracking sensor (4) is used to capture the movement image of the child's eyeballs, and analyze and obtain the gaze point, eye saccade frequency, and pupil diameter change parameters of the child's eyeballs.

4. The perioperative cognitive impairment prediction and monitoring device according to claim 1, characterized in that: The behavior interaction module includes a VR scene generation unit (6) integrated in the head-mounted VR glasses (1) and a separate operating handle (7), wherein the VR scene generation unit (6) is used to generate an animation game, a playground or a zoo interactive cognitive scene suitable for children, and the operating handle (7) is used for children to operate in the VR scene to generate operation behavior data.

5. The perioperative cognitive impairment prediction and monitoring device according to claim 4, characterized in that: The physiological parameter monitoring module comprises a heart rate sensor (8) and a blood oxygen saturation sensor (9), wherein the heart rate sensor (8) is arranged at a position where the head-mounted VR glasses (1) contact the child's forehead to collect heart rate data, and the blood oxygen saturation sensor (9) is arranged at a position where the operating handle (7) contacts the child's fingers to collect blood oxygen saturation data.

6. The perioperative cognitive impairment prediction and monitoring device according to claim 1, characterized in that: The data processing and analysis module comprises a data processing and analysis unit (10) and a data storage unit (11) integrated in the head-mounted VR glasses (1). The data storage unit (11) is used to store the original data and data analysis results collected by the EEG signal acquisition module, the eye tracking module, the behavior interaction module and the physiological parameter monitoring module. The data processing and analysis unit (10) is used to receive, process and analyze data.

7. The perioperative cognitive impairment prediction and monitoring device according to claim 1, characterized in that: The device further comprises a wireless communication module (12), wherein the wireless communication module (12) is integrated inside the head-mounted VR glasses (1); the data processing and analysis module is connected to an external terminal device via the wireless communication module (12), and the generated evaluation report is sent to the external terminal device.

8. The perioperative cognitive impairment prediction and monitoring device according to claim 1, characterized in that: A silicone pad (13) is provided on the inner side of the head-mounted VR glasses (1), and the silicone pad (13) is located at a position where the head-mounted VR glasses (1) contact the child's head.

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