CN202458347U - Non-invasive comprehensive detecting system for intracranial pressure - Google Patents
Non-invasive comprehensive detecting system for intracranial pressure Download PDFInfo
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- CN202458347U CN202458347U CN2012201255381U CN201220125538U CN202458347U CN 202458347 U CN202458347 U CN 202458347U CN 2012201255381 U CN2012201255381 U CN 2012201255381U CN 201220125538 U CN201220125538 U CN 201220125538U CN 202458347 U CN202458347 U CN 202458347U
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Abstract
The utility model provides a non-invasive comprehensive detecting system for intracranial pressure, which comprises a signal collecting module, a wireless USBHUB (universal serial bus hub) module, an intracranial pressure comprehensive detecting server and an output device, wherein the signal collecting module is used for collecting a signal related to the detection for the intracranial pressure; the signal collecting module is connected with the wireless USBHUB module through a USB (universal serial bus) bus; the intracranial pressure comprehensive detecting server is connected with the wireless USBHUB module through wireless communication; and the intracranial pressure comprehensive detecting server is electrically connected with the output device. The data collected by the signal collecting module is wirelessly transmitted to the intracranial pressure comprehensive detecting server through the wireless USBHUB module, so that the electric contact between human body and a non-invasive comprehensive detecting server for intracranial pressure is avoided, the man-machine electric safety isolation is realized, the non-invasive detection for intracranial pressure is performed on a patient without moving the intracranial pressure comprehensive detecting server, the space limitation in a specific application environment is avoided and the clinical applicability of the non-invasive comprehensive detecting system for intracranial pressure is increased.
Description
Technical field
This utility model relates to biomedical engineering technology and technical field of information processing, particularly a kind of intracranial pressure noinvasive comprehensive detection system.
Background technology
Intracranial hypertension is a main cause of secondary brain injury; Its degree has been proved to be relevant with the degree of survival rate, permanent disfunction with the persistent period; Particularly when intracranial volume-pressure curve reached critical point, as long as intracranial volume generation slight variations, intracranial pressure will sharply increase; Increase the weight of brain displacement and cerebral hernia, the depleted crisis of center of origin.So clinical intracranial pressure (Intracranial Pressure; ICP) monitoring is extremely important, is prevention and controls intracranial hypertension, confirms the basis of therapeutic scheme, and a kind of objective method of successfully treating of weighing also is provided simultaneously; But because mostly existing clinical monitoring intracranial pressure method is to have the wound monitoring method; The clinical monitoring expense is high, needs the professional to explain clinical data, has also brought the risk that infects simultaneously; Therefore the clinical practice of monitoring intracranial pressure is limited, does not give full play to the clinical value of ICP.Therefore Noninvasive intracranial pressure method for monitoring and analyzing and equipment just provide effectively replenishing of a reasonable selection and clinical monitoring intracranial pressure.
At present; Though the home and abroad has the patent of a lot of intracranial pressure non-invasive monitorings and document to occur, and does not also have the matured product of U.S. FDA and European CE authentication, domestic have the intracranial pressure noninvasive detection device based on single intracranial pressure noinvasive detection principle to occur; This intracranial pressure monitoring equipment adopts integral structure; Its intracranial pressure coherent signal is gathered terminal and mainframe box is integrated and connected together, often need complete machine be moved to the intracranial pressure that could accomplish the patient on the sick bed limit and detect, and uses to receive an other spatial restriction; So; This intracranial pressure checkout equipment has comparatively harsh requirement to environment for use, the not only use of intracranial pressure noinvasive testing process and inconvenient operation, and also patient body also possibly touch the mainframe box that the intracranial pressure noninvasive detection device has forceful electric power in testing process; Have potential safety hazard, clinical applicability is relatively poor.
Summary of the invention
To the above-mentioned deficiency that prior art exists, the technical problem that this utility model will solve is: overcome the restriction of intracranial pressure noinvasive checkout equipment environment for use; For solving this technical problem, this utility model provides a kind of detection by quantitative precision height, clinical applicability and the strong intracranial pressure noinvasive comprehensive detection system of feasibility.
This utility model is achieved in that a kind of intracranial pressure noinvasive comprehensive detection system, comprises gathering and the signal acquisition module, Wireless USB HUB module, intracranial pressure comprehensive detection server and the outut device that detect the intracranial pressure coherent signal;
Said signal acquisition module is connected with said Wireless USB HUB module through usb bus;
Said intracranial pressure comprehensive detection server is connected with said Wireless USB HUB module radio communication, and said intracranial pressure comprehensive detection server is electrically connected with said outut device.
Further, said signal acquisition module comprises that hemodynamics signals collecting functional module, brain electricity bring out signals collecting functional module, bio-electrical impedance signals collecting functional module, biomechanical parameter acquisition function module, ecg signal acquiring functional module, non-invasive blood pressure signals collecting functional module, breath signal acquisition function module, oxygen saturation signal acquisition function module.
Particularly, said hemodynamics signals collecting functional module comprises ultrasonic wave transducer probe, ultrasonic signal control unit, broadband amplification demodulator circuit, hemodynamics signal analog to digital conversion circuit and the hemodynamics signal USB interface that is electrically connected successively.
Particularly, said brain electricity brings out the signals collecting functional module and comprises that successively the current potential amplifying circuit, the brain electricity that are electrically connected bring out signal analog to digital conversion circuit, brain electricity and bring out signal microprocessor, flash stimulation circuit and four crosslinking electrodes that are connected with said current potential amplifying circuit and bring out the brain electricity that signal microprocessor is connected with said brain electricity and bring out the signal USB interface.
Particularly, said bioimpedance signal acquisition function module comprises collection terminal buffer circuit, bioimpedance signal amplifying and conditioning circuit, bioimpedance signal analog to digital conversion circuit, bioimpedance signal microprocessor, exciting current generation circuit and the activation fragment buffer circuit that is electrically connected successively; Also comprise two exciting electrodes, four acquisition electrodes and bioimpedance signal USB interface; Wherein, Two exciting electrodes are connected with said activation fragment buffer circuit; Four acquisition electrodes are connected with said collection terminal buffer circuit, and the bioimpedance signal USB interface is connected with said bioimpedance signal microprocessor.
Particularly, said ecg signal acquiring functional module comprises successively electrocardiosignal amplifying circuit, electrocardiosignal analog to digital conversion circuit, electrocardiosignal microprocessor, electrocardiosignal USB interface that is electrically connected and three electrocardioelectrodes of leading that are connected with said electrocardiosignal amplifying circuit.
Particularly, said non-invasive blood pressure signals collecting functional module comprises blood pressure cuff, cuff pressure/pulse signal testing circuit, blood pressure signal amplifying and conditioning circuit, blood pressure signal analog to digital conversion circuit, blood pressure signal microprocessor and the blood pressure signal USB interface that is electrically connected successively; Also comprise the air pump air valve control circuit, and this air pump air valve control circuit is connected with said blood pressure cuff with said blood pressure signal microprocessor respectively.
Particularly, said breath signal acquisition function module comprises pressure transducer, amplification/detecting circuit, breath signal analog to digital conversion circuit, breath signal microprocessor and the breath signal USB interface that is electrically connected successively.
Particularly, said oxygen saturation signal acquisition function module comprises infrared photoelectric sensor, oxygen saturation signal amplifying and conditioning circuit, oxygen saturation signal analog to digital conversion circuit, oxygen saturation signal microprocessor, the oxygen saturation signal USB interface that is electrically connected successively; Also comprise light source driving circuit, and this light source driving circuit is connected with said oxygen saturation signal microprocessor with said infrared photoelectric sensor respectively.
Compared with prior art; The beneficial effect of this utility model is: owing to used Wireless USB HUB module in the system; Make each signal acquisition module can the data of gathering be wirelessly transmitted to intracranial pressure comprehensive detection server through Wireless USB HUB module; Both avoided electric contact the between human body and the intracranial pressure noinvasive comprehensive detection server, realized that man-machine electrical safety isolated, and can under the prerequisite that does not move intracranial pressure comprehensive detection server, carry out the intracranial pressure noinvasive again and detect the patient; Avoid the spatial constraints in the concrete applied environment, improved the clinical applicability of intracranial pressure noinvasive comprehensive detection system.
Description of drawings
Fig. 1 is the theory structure schematic block diagram of this utility model.
Fig. 2 is the concrete structure schematic block diagram of this utility model.
Fig. 3 is this utility model function realization flow schematic block diagram.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is done further explain:
As shown in Figure 1, a kind of intracranial pressure noinvasive comprehensive detection system comprises and gathering and the signal acquisition module, Wireless USB HUB module, intracranial pressure comprehensive detection server and the outut device that detect the intracranial pressure coherent signal;
Said signal acquisition module is connected with said Wireless USB HUB module through usb bus;
Said intracranial pressure comprehensive detection server is connected with said Wireless USB HUB module radio communication, and said intracranial pressure comprehensive detection server is electrically connected with said outut device.
Further, said signal acquisition module comprises that hemodynamics signals collecting functional module, brain electricity bring out signals collecting functional module, bio-electrical impedance signals collecting functional module, biomechanical parameter acquisition function module, ecg signal acquiring functional module, non-invasive blood pressure signals collecting functional module, breath signal acquisition function module, oxygen saturation signal acquisition function module.These signal acquisition module all can obtain through commercial or independent research, have characteristics simple in structure, with low cost; It is suitable that this also makes intracranial pressure noinvasive comprehensive detection system and the existing integral type intracranial pressure checkout equipment of this utility model compare hardware cost, and the intracranial pressure noinvasive comprehensive detection system of visible this utility model has stronger industrial applicibility.The concrete formation structure of above-mentioned each signal acquisition module that makes introductions all round below.
As shown in Figure 2, said hemodynamics signals collecting functional module comprises ultrasonic wave transducer probe, ultrasonic signal control unit, broadband amplification demodulator circuit, hemodynamics signal analog to digital conversion circuit and the hemodynamics signal USB interface that is electrically connected successively.
The ultrasonic signal control unit can be controlled the ultrasonic pulse signal that the ultrasonic transduction probe produces 2MHz; Act on the middle cerebral artery of human body head; And utilize ultrasonic transduction probe to receive the echo-signal of blood vessel, obtain the hemodynamic parameter variable signal after amplifying the demodulator circuit processing through ultrasonic signal control unit and broadband; The hemodynamic parameter variable signal is learned the dynamic signal analog to digital conversion circuit through blood flow and is changed digital quantity into, through hemodynamics signal USB interface transfer of data is arrived said Wireless USB HUB module again.
Said brain electricity brings out the signals collecting functional module and comprises that successively the current potential amplifying circuit, the brain electricity that are electrically connected bring out signal analog to digital conversion circuit, brain electricity and bring out signal microprocessor, flash stimulation circuit and four crosslinking electrodes that are connected with said current potential amplifying circuit and bring out the brain electricity that signal microprocessor is connected with said brain electricity and bring out the signal USB interface.
Flasher in the flash stimulation circuit can adopt led array to realize, flasher utilizes passage of scintillation light to stimulate the human visual system according to gathering the microprocessor control realization flashing function that the brain electricity brings out signal; Four crosslinking electrodes are separately positioned on the left and right sides position of human body head glabella and forehead hairline place and human body head occipital bone, and the electrode at human body head glabella and forehead hairline place is as earth potential and reference point position; The electrode of the left and right sides position of human body head occipital bone is gathered the brain electricity and is brought out electric potential signal as the sampling electrode; The brain electricity brings out signal through after scalable 10000 times brain electricity brings out signal amplifying and conditioning circuit, bring out signal mode number conversion circuit conversion through the brain electricity and become digital quantity, again through the brain electricity bring out the signal USB interface with transfer of data to said Wireless USB HUB module.
Said bioimpedance signal acquisition function module comprises collection terminal buffer circuit, bioimpedance signal amplifying and conditioning circuit, bioimpedance signal analog to digital conversion circuit, bioimpedance signal microprocessor, exciting current generation circuit and the activation fragment buffer circuit that is electrically connected successively; Also comprise two exciting electrodes, four acquisition electrodes and bioimpedance signal USB interface; Wherein, Two exciting electrodes are connected with said activation fragment buffer circuit; Four acquisition electrodes are connected with said collection terminal buffer circuit, and the bioimpedance signal USB interface is connected with said bioimpedance signal microprocessor.
Two exciting electrodes are used to be separately positioned on human body head occipital bone 1.5 ~ 2.5cm place, protruding grand top and 1.5 ~ 2.52cm place, place between the eyebrows top; Exciting current generation circuit is used to produce stimulating current and acts on human body head through two exciting electrodes, and stimulating current is generally 20KHz ~ 50KHz, the amplitude < weak current of 4mA; Four acquisition electrodes are used to be separately positioned on the top of human body head two eyebrows and the left and right sides position of occipital bone, to gather the voltage signal after stimulating current acts on human body head; The bioimpedance signal amplifying and conditioning circuit is the brain impedance signal with the voltage signal amplification back conversion process of four acquisition electrode collections; And convert digital quantity to through the bioimpedance signal analog to digital conversion circuit, be transferred to said Wireless USB HUB module through the bioimpedance signal USB interface again.
Said ecg signal acquiring functional module comprises successively electrocardiosignal amplifying circuit, electrocardiosignal analog to digital conversion circuit, electrocardiosignal microprocessor, electrocardiosignal USB interface that is electrically connected and three electrocardioelectrodes of leading that are connected with said electrocardiosignal amplifying circuit.The circuit of this ecg signal acquiring functional module constitutes with electrocardiosignal detector signals collecting circuit structure partly is basic identical on the market, belongs to the circuit structure of technology maturation.
Said non-invasive blood pressure signals collecting functional module comprises blood pressure cuff, cuff pressure/pulse signal testing circuit, blood pressure signal amplifying and conditioning circuit, blood pressure signal analog to digital conversion circuit, blood pressure signal microprocessor and the blood pressure signal USB interface that is electrically connected successively; Also comprise the air pump air valve control circuit, and this air pump air valve control circuit is connected with said blood pressure cuff with said blood pressure signal microprocessor respectively.
The blood pressure signal microprocessor is gathered blood pressure signal through air pump air valve control circuit controlling blood pressure cuff; Blood pressure signal amplifies through the blood pressure signal amplifying and conditioning circuit; Convert digital quantity to by the blood pressure signal analog to digital conversion circuit again; The blood pressure signal microprocessor processes of going forward side by side is transferred to said Wireless USB HUB module through the blood pressure signal USB interface at last.
Said breath signal acquisition function module comprises pressure transducer, amplification/detecting circuit, breath signal analog to digital conversion circuit, breath signal microprocessor and the breath signal USB interface that is electrically connected successively.
Change by the pressure that breath signal causes through the pressure transducer collection; Handle through amplification/detecting circuit; Convert thereof into digital quantity through the breath signal analog to digital conversion circuit again; The breath signal microprocessor processes of going forward side by side is transferred to said Wireless USB HUB module through the breath signal USB interface at last.
Said oxygen saturation signal acquisition function module comprises infrared photoelectric sensor, oxygen saturation signal amplifying and conditioning circuit, oxygen saturation signal analog to digital conversion circuit, oxygen saturation signal microprocessor, the oxygen saturation signal USB interface that is electrically connected successively; Also comprise light source driving circuit, and this light source driving circuit is connected with said oxygen saturation signal microprocessor with said infrared photoelectric sensor respectively.
The oxygen saturation signal microprocessor is luminous through light source driving circuit control infrared photoelectric sensor; After the oxygen saturation signal process blood oxygen saturation amplifying and conditioning circuit; Convert digital quantity to by the blood oxygen saturation analog to digital conversion circuit, through the blood oxygen saturation USB interface transfer of data is arrived said USB HUB module again.
As shown in Figure 3, adopt above-mentioned each functional module to collect patient's intracranial pressure coherent signal after, the ultrawideband through Wireless USB HUB module transfer of data to intracranial pressure comprehensive detection server.Preset intracranial pressure noinvasive comprehensive detection in the intracranial pressure comprehensive detection server and analyze special-purpose software; Can handle and analyze the data that receive by Wireless USB HUB module; Finally obtain intracranial pressure noinvasive detection waveform and quantitative values; Can be through different outut device output, like display, printer or remote terminal output.
Above-mentioned intracranial pressure noinvasive comprehensive detection is analyzed special-purpose software, and its processing capacity can be utilized programming language realizations such as Visual C++6.0, and processing capacity software operation work on Windows operating means platform that programming obtains is to adapt to different client's needs.In the function treatment software of intracranial pressure noinvasive comprehensive detection system, can realize record and unified management specially to data logging modle of these intracranial pressure coherent signals structures of above-mentioned collection to these intracranial pressure coherent signals; Simultaneously, can realize that intracranial pressure dynamic changing process waveform and associated signal parameter that detection is obtained show specially to intracranial pressure testing result display interface module of demonstration structure of intracranial pressure dynamic changing process waveform.
Explanation is at last; Above embodiment is only unrestricted in order to the technical scheme of explanation this utility model; Although with reference to preferred embodiment this utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of this utility model; And not breaking away from the aim and the scope of this utility model technical scheme, it all should be encompassed in the middle of the claim scope of this utility model.
Claims (9)
1. an intracranial pressure noinvasive comprehensive detection system is characterized in that: comprise and gathering and the signal acquisition module, Wireless USB HUB module, intracranial pressure comprehensive detection server and the outut device that detect the intracranial pressure coherent signal;
Said signal acquisition module is connected with said Wireless USB HUB module through usb bus;
Said intracranial pressure comprehensive detection server is connected with said Wireless USB HUB module radio communication, and said intracranial pressure comprehensive detection server is electrically connected with said outut device.
2. intracranial pressure noinvasive comprehensive detection system as claimed in claim 1 is characterized in that: said signal acquisition module comprises that hemodynamics signals collecting functional module, brain electricity bring out signals collecting functional module, bio-electrical impedance signals collecting functional module, biomechanical parameter acquisition function module, ecg signal acquiring functional module, non-invasive blood pressure signals collecting functional module, breath signal acquisition function module, oxygen saturation signal acquisition function module.
3. intracranial pressure noinvasive comprehensive detection system as claimed in claim 2 is characterized in that: said hemodynamics signals collecting functional module comprises ultrasonic wave transducer probe, ultrasonic signal control unit, broadband amplification demodulator circuit, hemodynamics signal analog to digital conversion circuit and the hemodynamics signal USB interface that is electrically connected successively.
4. intracranial pressure noinvasive comprehensive detection system as claimed in claim 2 is characterized in that: said brain electricity brings out the signals collecting functional module and comprises that successively the current potential amplifying circuit, the brain electricity that are electrically connected bring out signal analog to digital conversion circuit, brain electricity and bring out signal microprocessor, flash stimulation circuit and four crosslinking electrodes that are connected with said current potential amplifying circuit and bring out the brain electricity that signal microprocessor is connected with said brain electricity and bring out the signal USB interface.
5. intracranial pressure noinvasive comprehensive detection system as claimed in claim 2 is characterized in that: said bioimpedance signal acquisition function module comprises collection terminal buffer circuit, bioimpedance signal amplifying and conditioning circuit, bioimpedance signal analog to digital conversion circuit, bioimpedance signal microprocessor, exciting current generation circuit and the activation fragment buffer circuit that is electrically connected successively;
Also comprise two exciting electrodes, four acquisition electrodes and bioimpedance signal USB interface; Wherein, Two exciting electrodes are connected with said activation fragment buffer circuit; Four acquisition electrodes are connected with said collection terminal buffer circuit, and the bioimpedance signal USB interface is connected with said bioimpedance signal microprocessor.
6. intracranial pressure noinvasive comprehensive detection system as claimed in claim 2 is characterized in that: said ecg signal acquiring functional module comprises successively electrocardiosignal amplifying circuit, electrocardiosignal analog to digital conversion circuit, electrocardiosignal microprocessor, electrocardiosignal USB interface that is electrically connected and three electrocardioelectrodes of leading that are connected with said electrocardiosignal amplifying circuit.
7. intracranial pressure noinvasive comprehensive detection system as claimed in claim 2 is characterized in that: said non-invasive blood pressure signals collecting functional module comprises blood pressure cuff, cuff pressure/pulse signal testing circuit, blood pressure signal amplifying and conditioning circuit, blood pressure signal analog to digital conversion circuit, blood pressure signal microprocessor and the blood pressure signal USB interface that is electrically connected successively;
Also comprise the air pump air valve control circuit, and this air pump air valve control circuit is connected with said blood pressure cuff with said blood pressure signal microprocessor respectively.
8. intracranial pressure noinvasive comprehensive detection system as claimed in claim 2 is characterized in that: said breath signal acquisition function module comprises pressure transducer, amplification/detecting circuit, breath signal analog to digital conversion circuit, breath signal microprocessor and the breath signal USB interface that is electrically connected successively.
9. intracranial pressure noinvasive comprehensive detection system as claimed in claim 2 is characterized in that: said oxygen saturation signal acquisition function module comprises infrared photoelectric sensor, oxygen saturation signal amplifying and conditioning circuit, oxygen saturation signal analog to digital conversion circuit, oxygen saturation signal microprocessor, the oxygen saturation signal USB interface that is electrically connected successively;
Also comprise light source driving circuit, and this light source driving circuit is connected with said oxygen saturation signal microprocessor with said infrared photoelectric sensor respectively.
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| CN2012201255381U CN202458347U (en) | 2012-03-29 | 2012-03-29 | Non-invasive comprehensive detecting system for intracranial pressure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103610456A (en) * | 2013-12-08 | 2014-03-05 | 季忠 | Brain pressure non-invasive monitoring analysis system based on physiological signal characteristic parameters |
| CN104113657A (en) * | 2014-06-17 | 2014-10-22 | 福建水立方三维数字科技有限公司 | Handheld high-speed three-dimensional scanning display all-in-one machine and data transmission method thereof |
| CN106137246A (en) * | 2016-06-27 | 2016-11-23 | 吉林大学 | A kind of alignment system in brain lesions region |
| CN106793953A (en) * | 2014-10-11 | 2017-05-31 | 林内特斯波尔有限公司 | For the apparatus and method of the measurement of intracranial pressure |
| CN109009064A (en) * | 2018-08-10 | 2018-12-18 | 重庆名希医疗器械有限公司 | A kind of intracranial pressure noninvasive monitoring device and method |
| CN111084616A (en) * | 2019-12-17 | 2020-05-01 | 四川大学 | Noninvasive intracranial pressure monitoring method and device |
| EP3706623A4 (en) * | 2017-11-06 | 2021-03-31 | Braincare Desenvolvimento E Inovação Tecnológica S.A. | Method and system for non-invasive management and monitoring of intracranial pressure and a device for measuring of a skull volumetric variation |
-
2012
- 2012-03-29 CN CN2012201255381U patent/CN202458347U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103610456A (en) * | 2013-12-08 | 2014-03-05 | 季忠 | Brain pressure non-invasive monitoring analysis system based on physiological signal characteristic parameters |
| CN103610456B (en) * | 2013-12-08 | 2015-06-10 | 季忠 | Brain pressure non-invasive monitoring analysis system based on physiological signal characteristic parameters |
| CN104113657A (en) * | 2014-06-17 | 2014-10-22 | 福建水立方三维数字科技有限公司 | Handheld high-speed three-dimensional scanning display all-in-one machine and data transmission method thereof |
| CN104113657B (en) * | 2014-06-17 | 2017-03-08 | 福建水立方三维数字科技有限公司 | Hand-held high speed three-dimensional scanning imagery display all-in-one and its data transmission method |
| CN106793953A (en) * | 2014-10-11 | 2017-05-31 | 林内特斯波尔有限公司 | For the apparatus and method of the measurement of intracranial pressure |
| CN106137246A (en) * | 2016-06-27 | 2016-11-23 | 吉林大学 | A kind of alignment system in brain lesions region |
| CN106137246B (en) * | 2016-06-27 | 2019-02-15 | 吉林大学 | A kind of positioning system in brain lesions region |
| EP3706623A4 (en) * | 2017-11-06 | 2021-03-31 | Braincare Desenvolvimento E Inovação Tecnológica S.A. | Method and system for non-invasive management and monitoring of intracranial pressure and a device for measuring of a skull volumetric variation |
| CN109009064A (en) * | 2018-08-10 | 2018-12-18 | 重庆名希医疗器械有限公司 | A kind of intracranial pressure noninvasive monitoring device and method |
| CN111084616A (en) * | 2019-12-17 | 2020-05-01 | 四川大学 | Noninvasive intracranial pressure monitoring method and device |
| CN111084616B (en) * | 2019-12-17 | 2022-03-08 | 四川大学 | Noninvasive intracranial pressure monitoring method and device |
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