A patient anesthesia consciousness state determination system
Patent Information
- Application Number
- CN202611037322.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-13
- Publication Date
- 2026-08-18
AI Technical Summary
[0003]现有技术中的意识判断方式采用人工主导的执行结构，即通过反复呼叫患者或进行睫毛反射进行意识判断，整体运行完全依赖人工把控，从而难以保持稳定统一的发放节奏，患者反馈结果也因操作人员的判断尺度不同存在差异，难以保障评估标准的一致性与客观性，同时无法实现持续循环的不间断监测，难以精准捕捉意识状态切换的瞬时节点，且需要医护人员持续值守观察，不能满足麻醉意识判断的工作要求，为此提出一种患者麻醉意识状态判断系统
[0018]This patient anesthesia consciousness assessment system, through the coordinated operation of a main unit, a headset, and a hand-held pressure sensor, can achieve automated and objective assessment of the patient's consciousness state, effectively making up for the shortcomings of existing clinical practices that rely on manual observation and subjective evaluation. Specifically, through the built-in loop timer and command signal transmitter of the main unit, digital signals are sent to the headset and the hand-held pressure sensor simultaneously. After receiving the digital signal, the headset broadcasts an auditory command to the patient, allowing the patient to grip and press the hand-held pressure sensor according to the command. The main unit can then determine the level of consciousness based on the feedback signal.
Smart Images
Figure CN122581695A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of anesthesia consciousness assessment technology, specifically a patient anesthesia consciousness assessment system. Background Technology
[0002] In clinical settings such as general anesthesia induction and recovery, and sedation drug titration in intensive care, medical staff typically determine the patient's level of consciousness by verbally giving instructions and observing the patient's response to these instructions, along with physiological reflex examinations. This serves as an important basis for making judgments when to perform invasive procedures, remove airway devices, and adjust sedation protocols.
[0003] Existing methods for assessing consciousness rely on a human-dominated execution structure, involving repeated calls to the patient or eyelash reflex checks. This process is entirely manual, making it difficult to maintain a stable and consistent dispensing rhythm. Patient feedback also varies depending on the operator's judgment criteria, compromising the consistency and objectivity of the assessment standards. Furthermore, continuous, uninterrupted monitoring is impossible, making it difficult to accurately capture the instantaneous points of consciousness transitions. Moreover, it requires continuous observation by medical staff, failing to meet the requirements for assessing anesthesia consciousness. Therefore, a patient anesthesia consciousness assessment system is proposed. Summary of the Invention
[0004] In view of the shortcomings of the prior art, the present invention provides a patient anesthesia consciousness state assessment system to solve the above-mentioned technical problems.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a patient's anesthesia consciousness state assessment system, comprising a main unit, a headset device, and a handheld pressure-sensing device:
[0006] The host computer has a built-in loop timer, command signal transmitter, signal receiver, judgment unit, external speaker module, display and USB communication port. The loop timer is connected to the command signal transmitter and is used to periodically trigger the command signal transmitter to output digital command signals according to the set broadcast interval.
[0007] The command signal transmitter is wirelessly connected to the headset and the hand-held pressure sensor to synchronously send digital command signals. The signal receiver is wirelessly connected to the hand-held pressure sensor to receive the feedback digital signals. The judgment unit is connected to the signal receiver and the external speaker module to judge the patient's state of consciousness based on the state changes of the continuously received feedback digital signals. When the state of consciousness changes, the external speaker module will broadcast the voice.
[0008] The headset device has a built-in first receiver and a speaker. The first receiver is connected to the speaker and is used to activate the speaker after receiving a digital command signal to play a preset hearing command to the patient. The handheld pressure-sensing device has a built-in second receiver, a pressure sensor, an analog-to-digital converter, and a feedback transmitter.
[0009] The second receiver is connected to the pressure sensor to receive digital command signals and trigger pressure detection. The pressure sensor is connected to the analog-to-digital converter to collect the patient's grip pressure signal and transmit it to the analog-to-digital converter. The analog-to-digital converter is connected to the feedback transmitter to convert the pressure signal into a digital signal and outputs a valid feedback signal when the pressure value reaches a preset trigger threshold, and outputs an invalid feedback signal when the threshold is not reached.
[0010] Preferably, the display is connected to the loop timer and the signal receiver respectively to display the system time, timing information and response records. The USB communication port is connected to the internal circuit of the host to output the recorded data to an external computer. The feedback transmitter is wirelessly connected to the signal receiver of the host to transmit the feedback digital signal back to the host. This allows for a direct display of the system's operating status and the patient's response records at different times, facilitating real-time monitoring by medical staff. It also supports the export and retention of detection data, ensuring traceability of the monitoring process and stable and reliable signal transmission.
[0011] Preferably, the host also has a built-in interactive module, and the speaker has an internal content storage unit. The interactive module is connected to the parameter input terminal of the loop timer, the threshold adjustment terminal of the analog-to-digital converter, and the content storage unit of the speaker. The interactive module is used to adjust the interval of instruction broadcasting, the sensitivity level of pressure triggering, and to change the preset hearing instruction content. It can flexibly adjust the instruction broadcasting interval, pressure triggering sensitivity, and instruction content to adapt to different clinical scenarios and individual patient differences, effectively improve the applicability of the device, and meet diverse clinical diagnosis and treatment needs.
[0012] Preferably, the judgment unit has a built-in state recognition logic unit, which is connected to the output terminal of the signal receiver and the input terminal of the external speaker module. The judgment unit is used to continuously collect continuous feedback digital signals, identify the switching node where the feedback signal continuously changes from an effective state to an ineffective state, and determine it as a state of loss of consciousness; identify the switching node where the feedback signal continuously changes from an ineffective state to an effective state, and determine it as a state of regained consciousness. When the state changes, the module is triggered to output the corresponding voice prompt. It can accurately identify the switching node of the patient's state of consciousness and automatically trigger the voice broadcast prompt. There is no need for medical staff to continuously monitor and observe, which effectively improves the timeliness of state judgment and reduces the clinical workload.
[0013] Preferably, the host is equipped with a quick start / stop button, which is connected to the operation control terminal of the cyclic timer and the operation control terminal of the judgment unit. The quick start / stop button is used to start the cyclic timer and start the entire detection process after the start button is triggered, and to immediately terminate the instruction loop and status judgment process when the same button is triggered during the detection process. The entire monitoring process can be quickly started or terminated with a single button, which is simple and intuitive to operate, can adapt to clinical emergencies and temporary operation needs, and effectively improves the flexibility and convenience of the device.
[0014] Preferably, the command signal transmitter has a synchronous output channel inside. The synchronous output channel is wirelessly connected to the first receiver of the headset device and the second receiver of the hand-held pressure sensing device. When the command signal transmitter outputs a digital command signal, it sends a trigger signal to both devices simultaneously through the synchronous output channel. This ensures that the timing of the hearing command playback and the start-up of the pressure detection are completely synchronized, avoiding misjudgment caused by timing deviations and effectively improving the accuracy and reliability of the consciousness state determination results.
[0015] Preferably, the feedback transmitter of the handheld pressure-sensing device has a built-in effective window control unit. The effective window control unit is connected to the trigger terminal of the second receiver and the output terminal of the analog-to-digital converter. The effective window control unit is used to transmit the feedback signal output by the analog-to-digital converter back to the host only within the detection window after the command is triggered. Pressure signals outside the detection window are not transmitted back. This can filter out accidental pressure signals outside the detection window, avoid irrelevant actions during non-command periods from interfering with the judgment results, and effectively improve the device's anti-interference capability and the accuracy of consciousness determination.
[0016] Preferably, the external speaker module is linked to the status output terminal of the judgment unit. In addition to the corresponding voice broadcast when the consciousness state changes, the external speaker module also outputs the corresponding operation prompt tone when the device starts and stops. It can output voice prompts when the device starts and stops and when the consciousness state changes, so that medical staff can clearly understand the operating status of the device and improve the intuitiveness of operation and the convenience of clinical use.
[0017] Compared with the prior art, the present invention provides a patient's anesthesia consciousness state assessment system, which has the following beneficial effects:
[0018] This patient anesthesia consciousness assessment system, through the coordinated operation of a main unit, a headset, and a hand-held pressure sensor, can achieve automated and objective assessment of the patient's consciousness state, effectively making up for the shortcomings of existing clinical practices that rely on manual observation and subjective evaluation. Specifically, through the built-in loop timer and command signal transmitter of the main unit, digital signals are sent to the headset and the hand-held pressure sensor simultaneously. After receiving the digital signal, the headset broadcasts an auditory command to the patient, allowing the patient to grip and press the hand-held pressure sensor according to the command. The main unit can then determine the level of consciousness based on the feedback signal.
[0019] This allows for consciousness assessment based on a unified signal feedback standard, effectively eliminating differences in judgment among different operators, ensuring the consistency and objectivity of assessment results, reducing the risk of diagnosis and treatment due to subjective judgment bias, and automatically capturing the switching points between loss and recovery of consciousness, and proactively providing status broadcast prompts, so that medical staff can keep abreast of changes in the patient's status and provide reliable timing references for key operations such as intubation and extubation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the system structure of the present invention;
[0021] Figure 2 This is a schematic diagram of the internal connection relationship of the host of the present invention. Detailed Implementation
[0022] Please see Figure 1 This invention provides a technical solution: a patient's anesthesia consciousness state assessment system, comprising a main unit, a headset device, and a handheld pressure-sensing device.
[0023] Please see Figure 2 The host has a built-in loop timer, command signal transmitter, signal receiver, judgment unit, external speaker module, display and USB communication port. The loop timer is connected to the command signal transmitter and is used to periodically trigger the command signal transmitter to output digital command signals according to the set broadcast interval.
[0024] The command signal transmitter is wirelessly connected to the headset and the hand-held pressure sensor to synchronously send digital command signals. The signal receiver is wirelessly connected to the hand-held pressure sensor to receive the feedback digital signals. The judgment unit is connected to the signal receiver and the external speaker module to judge the patient's state of consciousness based on the state changes of the continuously received feedback digital signals. When the state of consciousness changes, the external speaker module will broadcast the voice.
[0025] The headset device has a built-in first receiver and a speaker. The first receiver is connected to the speaker and is used to activate the speaker after receiving a digital command signal to play a preset hearing command to the patient. The handheld pressure-sensing device has a built-in second receiver, a pressure sensor, an analog-to-digital converter, and a feedback transmitter.
[0026] The second receiver is connected to the pressure sensor to receive digital command signals and trigger pressure detection. The pressure sensor is connected to the analog-to-digital converter to collect the patient's grip pressure signal and transmit it to the analog-to-digital converter. The analog-to-digital converter is connected to the feedback transmitter to convert the pressure signal into a digital signal and outputs a valid feedback signal when the pressure value reaches a preset trigger threshold, and outputs an invalid feedback signal when the threshold is not reached.
[0027] By coordinating the main unit, the headset, and the hand-held pressure sensor, the assessment of a patient's state of consciousness can be automated and objective. This effectively compensates for the shortcomings of current clinical practices that rely on manual observation and subjective evaluation. Specifically, the main unit uses a built-in loop timer and command signal transmitter to simultaneously send digital signals to both the headset and the hand-held pressure sensor. After receiving the digital signal, the headset broadcasts an auditory command to the patient, who then grips the hand-held pressure sensor accordingly. The main unit then uses the feedback signal to determine consciousness, enabling the assessment to be based on a unified signal feedback standard. This effectively eliminates differences in judgment among different operators, ensuring the consistency and objectivity of the assessment results and reducing the diagnostic and treatment risks caused by subjective judgment bias. Furthermore, the system can automatically capture the transition points between loss and recovery of consciousness and proactively broadcast status prompts, allowing medical staff to promptly grasp changes in the patient's condition and providing reliable timing references for critical procedures such as intubation and extubation.
[0028] The display is connected to the loop timer and the signal receiver to display system time, timing information, and response records. The USB communication port is connected to the internal circuitry of the host to output recorded data to an external computer. The feedback transmitter is wirelessly connected to the host's signal receiver to transmit feedback digital signals back to the host. The host also has a built-in interactive module. The speaker has an internal content storage unit. The interactive module is connected to the parameter input terminal of the loop timer, the threshold adjustment terminal of the analog-to-digital converter, and the content storage unit of the speaker. The interactive module is used to adjust the interval of instruction broadcasting, the sensitivity level of pressure triggering, and to change the preset hearing instruction content.
[0029] The judgment unit has a built-in state recognition logic unit, which is connected to the output terminal of the signal receiver and the input terminal of the external speaker module. The judgment unit is used to continuously collect continuous feedback digital signals, identify the switching node where the feedback signal continuously changes from an effective state to an ineffective state, and determine it as a state of loss of consciousness. It also identifies the switching node where the feedback signal continuously changes from an ineffective state to an effective state, and determines it as a state of regained consciousness. When the state changes, the module is triggered to output the corresponding voice prompt. The host is equipped with a quick start / stop button, which is connected to the operation control terminal of the loop timer and the operation control terminal of the judgment unit. The quick start / stop button is used to start the loop timer and start the entire detection process after the start button is triggered. When the same button is triggered during the detection process, the instruction loop and state judgment process are immediately terminated.
[0030] The command signal transmitter has a synchronous output channel, which is wirelessly connected to the first receiver of the headset device and the second receiver of the handheld pressure sensor device. When the command signal transmitter outputs a digital command signal, it simultaneously sends a trigger signal to both devices through the synchronous output channel. The feedback transmitter of the handheld pressure sensor device has a built-in effective window control unit, which is connected to the trigger terminal of the second receiver and the output terminal of the analog-to-digital converter. The effective window control unit is used to transmit the feedback signal output by the analog-to-digital converter back to the host only within the detection window after the command is triggered. Pressure signals outside the detection window are not transmitted back. The external speaker module is linked to the status output terminal of the judgment unit. In addition to the corresponding voice broadcast when the consciousness state changes, the external speaker module also outputs the corresponding operation prompt tone when the device starts and stops.
[0031] This solution, through the coordinated operation of a main unit, a headset, and a handheld pressure sensor, enables automated and objective assessment of a patient's state of consciousness. It effectively addresses the shortcomings of existing clinical practices that rely on manual observation and subjective evaluation. Specifically, the main unit, with its built-in loop timer and command signal transmitter, simultaneously sends digital signals to both the headset and the handheld pressure sensor. Upon receiving the digital signal, the headset broadcasts an auditory command to the patient, who then presses the handheld pressure sensor accordingly. The main unit then uses the feedback signal to determine consciousness, ensuring a standardized signal feedback mechanism. This eliminates discrepancies in judgment among different operators, guarantees consistency and objectivity in assessment results, and reduces the risks associated with subjective biases. Furthermore, it automatically detects the transition between loss and regain of consciousness and proactively provides status updates, allowing medical staff to promptly monitor changes in patient status and providing reliable timing references for critical procedures such as intubation and extubation.
Claims
1. A patient's anesthesia consciousness state assessment system, comprising a main unit, a headset, and a handheld pressure-sensitive device, characterized in that: The host computer has a built-in loop timer, command signal transmitter, signal receiver, judgment unit, external speaker module, display and USB communication port. The loop timer is connected to the command signal transmitter and is used to periodically trigger the command signal transmitter to output digital command signals according to the set broadcast interval. The command signal transmitter is wirelessly connected to the headset and the hand-held pressure sensor to synchronously send digital command signals. The signal receiver is wirelessly connected to the hand-held pressure sensor to receive the feedback digital signals. The judgment unit is connected to the signal receiver and the external speaker module to judge the patient's state of consciousness based on the state changes of the continuously received feedback digital signals. When the state of consciousness changes, the external speaker module will broadcast the voice. The headset device has a built-in first receiver and a speaker. The first receiver is connected to the speaker and is used to activate the speaker after receiving a digital command signal to play a preset hearing command to the patient. The handheld pressure-sensing device has a built-in second receiver, a pressure sensor, an analog-to-digital converter, and a feedback transmitter. The second receiver is connected to the pressure sensor to receive digital command signals and trigger pressure detection. The pressure sensor is connected to the analog-to-digital converter to collect the patient's grip pressure signal and transmit it to the analog-to-digital converter. The analog-to-digital converter is connected to the feedback transmitter to convert the pressure signal into a digital signal and outputs a valid feedback signal when the pressure value reaches a preset trigger threshold, and outputs an invalid feedback signal when the threshold is not reached.
2. The patient's anesthesia consciousness state assessment system according to claim 1, characterized in that: The display is connected to the loop timer and the signal receiver respectively, and is used to display the system time, timing information and response status records. The USB communication port is connected to the internal circuit of the host and is used to output the recorded data to an external computer. The feedback transmitter is wirelessly connected to the signal receiver of the host and is used to transmit the feedback digital signal back to the host.
3. The patient's anesthesia consciousness state assessment system according to claim 1, characterized in that: The host also has a built-in interactive module, and the speaker has an internal content storage unit. The interactive module is connected to the parameter input terminal of the loop timer, the threshold adjustment terminal of the analog-to-digital converter, and the content storage unit of the speaker. The interactive module is used to adjust the interval of instruction broadcasting, the sensitivity level of pressure triggering, and to change the preset hearing instruction content.
4. The patient's anesthesia consciousness state assessment system according to claim 1, characterized in that: The judgment unit has a built-in state recognition logic unit, which is connected to the output terminal of the signal receiver and the input terminal of the external speaker module. The judgment unit is used to continuously collect continuous feedback digital signals, identify the switching node where the feedback signal continuously changes from a valid state to an invalid state, and determine it as a state of loss of consciousness. It also identifies the switching node where the feedback signal continuously changes from an invalid state to a valid state, and determines it as a state of recovery of consciousness. When the state changes, the module is triggered to output the corresponding voice prompt.
5. The patient's anesthesia consciousness state assessment system according to claim 1, characterized in that: The host is equipped with a quick start / stop button, which is connected to the operation control terminal of the loop timer and the operation control terminal of the judgment unit. The quick start / stop button is used to start the loop timer and start the entire detection process after the start button is triggered, and to immediately terminate the instruction loop and status judgment process when the same button is triggered during the detection process.
6. The patient's anesthesia consciousness state assessment system according to claim 1, characterized in that: The command signal transmitter has a synchronous output channel inside. The synchronous output channel is wirelessly connected to the first receiver of the headset device and the second receiver of the hand-held pressure-sensing device. When the command signal transmitter outputs a digital command signal, it simultaneously sends a trigger signal to the two devices through the synchronous output channel.
7. The patient's anesthesia consciousness state assessment system according to claim 1, characterized in that: The feedback transmitter of the handheld pressure sensor has a built-in effective window control unit. The effective window control unit is connected to the trigger terminal of the second receiver and the output terminal of the analog-to-digital converter. The effective window control unit is used to transmit the feedback signal output by the analog-to-digital converter back to the host only within the detection window after the command is triggered. Pressure signals outside the detection window are not transmitted back.
8. The patient's anesthesia consciousness state assessment system according to claim 1, characterized in that: The external speaker module is linked to the status output terminal of the judgment unit. In addition to the corresponding voice broadcast when the consciousness state changes, the external speaker module also outputs the corresponding operation prompt sound when the device is started and stopped.