CN117860261A - Multi-parameter electrocardiograph monitor design method and system for displaying shock index - Google Patents
Multi-parameter electrocardiograph monitor design method and system for displaying shock index Download PDFInfo
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Abstract
The invention belongs to the technical field of medical electronic equipment, and provides a design method and a system for a multiparameter electrocardiograph monitor for displaying shock index. Carrying out blood pressure measurement by adopting an oscillation oscillometric method to obtain blood pressure data; measuring blood oxygen and pulse rate by adopting an optical method to obtain blood oxygen and pulse rate data; measuring electrocardiosignals based on a heart electrophysiology principle to obtain electrocardiosignal data; displaying images and characters on a monitor screen in real time based on a display module; based on the blood pressure data, the blood oxygen, the pulse rate and the electrocardiosignal data, calculating a shock index through a shock index calculation unit, and displaying the shock index value on the monitor screen. The problem that the shock index can not be automatically calculated and displayed by the existing electrocardiograph monitor, the shock index is needed to be obtained by manually calculating other measured data is solved, the working intensity of medical staff is reduced, timely reminding can be carried out when shock risks exist, and the health and safety of patients can be guaranteed.
Description
Technical Field
The invention relates to the technical field of medical electronic equipment, in particular to a multi-parameter electrocardiograph monitor design method and system for displaying shock index.
Background
The multi-parameter monitor is an important device for monitoring patients, and can prompt the change of the patient's illness state by continuously monitoring the change of vital signs such as heart rate, heart rhythm, blood pressure, respiration, blood oxygen saturation and the like of the patients, and is one of the most common medical instruments with an alarm function used in hospitals at present, and the monitoring device can be used by patients who need to continuously monitor the vital signs in critical illness state. The main structure of the multi-parameter monitor comprises a plurality of components such as a sensor, an analog processor, a communication display, a digital processor, an alarm processor and the like.
Most of CCU patients are ill, critical and complex in change, and are prone to pump failure and cardiogenic shock. In the compensation period of shock, basic vital signs such as blood pressure, heart rate, respiration and the like are usually in a normal range, but shock indexes are obviously changed, so that in clinical critical cardiovascular patient condition observation indexes, the Shock Index (SI) can be used as a hemodynamic index which is more sensitive than the basic vital signs, and the blood loss of a patient can be roughly estimated. The multi-parameter electrocardiograph monitors used clinically at present can not directly display information related to shock risks, particularly can judge whether shock exists or not or reflect Shock Index (SI) of shock degree, can not realize the requirement of automatically calculating and displaying shock index according to the actually monitored pulse rate and systolic pressure, and needs medical staff to calculate manually.
Therefore, it is necessary to develop a design method and system for multi-parameter electrocardiograph monitor for displaying shock index, which can automatically display shock index, reduce workload of medical staff, and help medical staff to monitor hemodynamic condition of patient timely, accurately and dynamically.
Disclosure of Invention
The invention aims to provide a design method and a system for a multi-parameter electrocardiograph monitor for displaying shock indexes, which are used for solving the problems of shock risk-free related information display, need of medical staff to manually calculate shock indexes and the like of the conventional multi-parameter electrocardiograph monitor in the background art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
according to one aspect of the present invention, there is provided a multi-parameter electrocardiograph monitor design method for displaying shock index, the method specifically comprising:
carrying out blood pressure measurement by adopting an oscillation oscillometric method to obtain blood pressure data;
measuring blood oxygen and pulse rate by adopting an optical method to obtain blood oxygen and pulse rate data;
measuring electrocardiosignals based on a heart electrophysiology principle to obtain electrocardiosignal data;
displaying images and characters on a monitor screen in real time based on a display module;
based on the blood pressure data, the blood oxygen, the pulse rate and the electrocardiosignal data, calculating a shock index through a shock index calculation unit, and displaying the shock index value on the monitor screen.
Based on the foregoing, the blood pressure data includes systolic pressure, diastolic pressure, mean arterial pressure.
Based on the foregoing scheme, the calculation formula for calculating the shock index is as follows:
si=pr/SBP, where PR represents the pulse rate; SBP represents systolic blood pressure.
Based on the foregoing, the shock index value is displayed on a monitor screen to represent the shock risk, the shock risk is classified based on the shock index value, and general protection measures and prevention measures corresponding to the classified risk are displayed on the monitor screen.
Based on the foregoing scheme, the grading of shock risk is specifically:
risk of shock: the SI value is between 0.5 and 0.7, the shock index value is displayed behind the blood pressure value on the monitor screen, the content color is white, and no prompt is displayed;
there may be a risk of shock: the SI value is between 0.7 and 0.9, shock index value and prompt are displayed behind the blood pressure value on the monitor screen, the content color is green, and the prompt is: attention is paid;
general shock risk: the SI value is between 0.9 and 1.0, shock index value and prompt are displayed behind the blood pressure value on the monitor screen, the content color is yellow, and the prompt is: shock risk, please pay attention to the moment;
shock exists: the SI value is greater than 1.0, which indicates that the hemodynamic condition is worsened, shock is clearly present, at the moment, the shock index value and the prompt are displayed behind the blood pressure value of the monitor screen, the content color is red, and an alarm sound is sent out, and the prompt is: shock, please deal with immediately.
Based on the foregoing scheme, the image is a shock index change trend line graph, and is displayed on the monitor screen after clicking the shock index value.
According to one aspect of the present invention, there is provided a multiparameter electrocardiographic monitor system displaying shock index, the system comprising:
the blood pressure measuring module is used for measuring blood pressure data by adopting an oscillation oscillography;
the blood oxygen and pulse rate measuring module is used for measuring blood oxygen and pulse rate by adopting an optical method;
the electrocardiosignal measuring module is used for measuring electrocardiosignals based on the principle of cardiac electrophysiology;
the display module is used for displaying images and characters on a monitor screen in real time based on the liquid crystal display unit;
and the shock risk module is used for calculating a shock index through the microprocessor based on the blood pressure data, the blood oxygen, the pulse rate and the electrocardiosignal data, and displaying the shock index value on the monitor screen.
Based on the foregoing, the shock risk module includes:
a shock index calculation unit for calculating a shock index;
the shock risk display unit is used for grading the shock index values to represent shock risk levels, and displaying the shock index values and suggestions on a monitor screen by using corresponding colors of different risk levels according to the shock risk levels;
and the shock alarm unit is used for sounding a shock alarm when shock exists, namely when the shock index value is greater than 1.0.
Compared with the prior art, the invention has at least the following advantages and positive effects:
(1) The shock index can be automatically calculated and displayed according to the pulse rate and the systolic pressure which are actually monitored, the medical staff is not required to manually calculate, the information related to the shock risk is directly displayed, particularly the Shock Index (SI) for judging whether the shock exists or reflecting the shock degree is judged, the work load of the medical staff is reduced, and the medical staff is helped to timely, accurately and dynamically monitor the hemodynamic condition of the patient;
(2) The treatment measures with different shock grades are displayed, so that the medical staff can be prompted for relevant treatment measures of shock with corresponding grades, the medical staff can respond to the shock problem in time, and the safety of patients is protected;
(3) After shock index number value is greater than 1.0, clearly there is shock, has set up alarm scheme, and the monitor can sound the alarm, can let shock problem in time be found by medical personnel, helps in time relieving patient's shock danger.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a flow chart of a method for designing a multiparameter electrocardiograph for displaying shock index according to an embodiment of the present invention;
FIG. 2 is a flow chart showing a shock risk reminder for a multiparameter electrocardiograph displaying shock index according to an embodiment of the present invention;
FIG. 3 shows a shock risk calculation schematic of an embodiment of the present invention;
FIG. 4 is a block diagram of a multi-parameter electrocardiograph system for displaying shock index according to an embodiment of the present invention.
Detailed Description
For a clearer explanation of the objects, technical solutions and advantages of the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that the exemplary embodiments can be implemented in various forms and should not be construed as being limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the invention.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
The invention will be described in detail with reference to specific examples below:
example 1
As shown in fig. 1, according to an aspect of the present invention, embodiment 1 provides a method for designing a multiparameter electrocardiographic monitor for displaying shock index, which specifically comprises the following steps:
step S1, carrying out blood pressure measurement by adopting an oscillation oscillometric method to obtain blood pressure data;
s2, measuring blood oxygen and pulse rate by adopting an optical method to obtain blood oxygen and pulse rate data;
step S3, measuring electrocardiosignals based on a heart electrophysiology principle to obtain electrocardiosignal data;
s4, displaying images and characters on a monitor screen in real time based on a display module;
and S5, calculating a shock index through a shock index calculation unit based on the blood pressure data, the blood oxygen, the pulse rate data and the electrocardiosignal data, and displaying the shock index value on the monitor screen.
Specifically, in the present embodiment, the blood pressure measurement performed by the oscillation oscillometric method in step S1 is a blood pressure value measured by performing the blood pressure measurement in the prone position using the noninvasive blood pressure measurement.
Further, the blood pressure data includes systolic pressure, diastolic pressure, mean arterial pressure.
Further, the calculation formula for calculating the shock index is as follows:
si=pr/SBP, where PR represents the pulse rate; SBP represents systolic blood pressure.
Further, the shock index value is displayed on a monitor screen to represent the shock risk, the shock risk is classified based on the shock index value, and general protection measures and prevention measures of the corresponding class risk are displayed on the monitor screen.
Further, the grading of shock risk is specifically:
risk of shock: the SI value is between 0.5 and 0.7, the shock index value is displayed behind the blood pressure value on the monitor screen, the content color is white, and no prompt is displayed;
there may be a risk of shock: the SI value is between 0.7 and 0.9, shock index value and prompt are displayed behind the blood pressure value on the monitor screen, the content color is green, and the prompt is: attention is paid;
general shock risk: the SI value is between 0.9 and 1.0, shock index value and prompt are displayed behind the blood pressure value on the monitor screen, the content color is yellow, and the prompt is: shock risk, please pay attention to the moment;
shock exists: the SI value is greater than 1.0, which indicates that the hemodynamic condition is worsened, shock is clearly present, at the moment, the shock index value and the prompt are displayed behind the blood pressure value of the monitor screen, the content color is red, and an alarm sound is sent out, and the prompt is: shock, please deal with immediately.
Further, the image is a shock index change trend line graph, and is displayed on the monitor screen after clicking the shock index value.
Further, in this embodiment, before the calculation of the shock index, if the data of other modules fails to be acquired, the "acquisition failure" word is displayed in the area that should display the shock index value on the display screen, and meanwhile, the shock alarm unit may trigger the alarm device to send out an alarm sound; if the shock index is calculated and obtained, the shock index exceeds a preset threshold value, the word of 'calculation error' is displayed in the area which should display the shock index value on the display screen, and meanwhile, the shock alarm unit can trigger an alarm device to send out alarm sound.
Further, the general protection measures and the prevention measures of the corresponding grade risk are displayed on the monitor screen, after clicking the shock index value, the general protection measures and the prevention measures are displayed on the monitor screen, and different protection measures and prevention measure contents are displayed according to different shock risk grades, wherein the specific display contents are as follows:
risk of shock: maintaining the current treatment regimen; dynamically monitoring vital signs such as electrocardio, blood pressure, blood oxygen saturation, shock index and the like; patient complaints, peripheral circulatory perfusion, and the like are focused on;
there may be a risk of shock: bed rest, reduced activity; closely monitoring vital signs such as electrocardio, blood pressure, blood oxygen saturation, shock index and the like; observing the hemodynamic changes such as chest distress, shortness of breath, sweating, oliguria, mental retardation, cold extremities, etc.; the first aid objects such as the rescue vehicle, the defibrillator and the like are in a standby state;
general shock risk: rapidly identifying the cause of shock and timely adjusting the therapeutic scheme; the preparation for rescuing is completed, including absolute lying in bed and keeping warm; continuously monitoring electrocardio, blood pressure, blood oxygen saturation and shock index; rapidly establishing a venous indwelling access; oxygen therapy; concern patient complaints, urine volume, and peripheral hemodynamic changes; selecting vasoactive drugs and the like according to hemodynamic conditions;
shock exists: active and effective rescue measures are taken, including absolute bedridden and warm keeping; continuously monitoring electrocardio, blood pressure, blood oxygen saturation and shock index; quickly establishing a venous indwelling passage and performing deep venous catheterization if necessary; oxygen therapy, trachea cannula or tracheotomy if necessary, and artificial respirator for assisting respiration; replenishing blood volume; correcting acidosis; monitoring urine volume per hour; the vasoactive drugs are selected according to the hemodynamic conditions, etc.
Further, in this embodiment, the electrocardiograph monitor design method further includes shock risk prediction, and based on patient history data, measured data and calculated shock index, a shock risk prediction model is formed in combination with a shock risk prediction algorithm to predict shock risk, and update shock risk in real time.
Specifically, the construction of the shock risk prediction model includes:
(1) Patient condition data collection and preparation: the electrocardiograph monitor is networked with an electronic medical record system of a hospital, physiological index data of a patient such as blood pressure, heart rate, respiratory rate and the like are collected, medical history information of the patient such as age, gender, past medical history and the like are collected, laboratory examination results of the patient such as blood routine, blood biochemistry, arterial blood gas analysis and the like are collected, data are arranged and cleaned, and accuracy and integrity of the data are ensured;
(2) Measurement and calculation data collection and preparation: collecting various data measured by a monitor, and collecting shock indexes obtained by calculation, so as to ensure the accuracy and reliability of the calculation process;
(3) Shock risk prediction: based on the data obtained in the data collection and preparation stage, determining the input requirements of a shock risk prediction algorithm according to different input data required by patients under different conditions, including shock indexes, other physiological indexes, medical history information, laboratory examination results and the like, constructing a shock risk prediction model, wherein the shock risk prediction algorithm uses a neural network, the shock indexes are required to be used as one of the characteristics or the input of the prediction model, training the model by using training data, and verifying and optimizing the model by using verification data, wherein the training data and the verification data can be the historical case condition data of the patients;
(4) Model evaluation and performance verification: the method comprises the steps of using an independent test data set to evaluate a trained model, evaluating the performance of the model, including indexes such as accuracy, recall rate and precision rate, analyzing the prediction result of the model, and evaluating the effectiveness and reliability of the model in shock risk prediction;
(5) Model application and continuous monitoring: the trained and verified model is applied to new patient data, shock risk of the patient is monitored in real time, if the shock risk is predicted, a shock index change curve is displayed on an electrocardiograph monitor screen in a flashing mode in real time, and 'dripping' sound is emitted, so that medical staff is timely reminded of the shock risk, and whether the shock index data and other measurement data are abnormal or not is monitored in time by the medical staff; the performance of the model is continuously monitored, and the model is updated and improved as required.
In this embodiment, by adding the shock index related data to the electrocardiograph monitor and providing the shock risk and the treatment suggestion corresponding to the shock index value, when the shock is obvious, the alarm can be sent out in time to remind related personnel to treat the shock in time, so that the risk of the shock of the patient can be reduced, the medical staff is not required to go to manually calculate the shock index and judge the shock risk according to the shock index, the occurrence of the event dead due to the shock is prevented, the safety of the patient is timely protected, and the burden of the medical staff is relieved.
Example 2
As shown in fig. 2, embodiment 2 of the present invention provides a flowchart of a shock risk reminding method of a multi-parameter electrocardiograph monitor for displaying shock index, when electrocardiograph monitoring is started, each item of data is automatically measured in real time, wherein the method for measuring and calculating the shock index includes the following steps:
measuring blood pressure data and electrocardiosignal data, including heart rate and systolic pressure;
calculating the shock index according to the heart rate and the systolic pressure;
judging whether the shock index is more than 1.0, if so, displaying the shock index value and the prompt, and sending out alarm sound;
if not, shock exists, judging the corresponding shock risk level, and displaying a shock index value and a prompt;
the measurement of the shock index is finished, the shock index value is circularly updated in real time, and after the shock index book on the monitor screen is clicked, the shock risk level processing advice and measures corresponding to the shock index size are displayed.
Example 3
As shown in fig. 4, embodiment 3 of the present invention provides a multi-parameter electrocardiographic monitor system 500 for displaying shock index, the system comprising:
501. the blood pressure measuring module is used for measuring blood pressure data by adopting an oscillation oscillography;
502. the blood oxygen and pulse rate measuring module is used for measuring blood oxygen and pulse rate by adopting an optical method;
503. the electrocardiosignal measuring module is used for measuring electrocardiosignals based on the principle of cardiac electrophysiology;
504. the display module is used for displaying images and characters on a monitor screen in real time based on the shock risk display unit;
505. and the shock risk module is used for calculating a shock index through the microprocessor based on the blood pressure data, the blood oxygen, the pulse rate and the electrocardiosignal data, and displaying the shock index value on the monitor screen.
Further, the shock risk module includes:
5051. a shock index calculation unit for calculating a shock index;
5052. the shock risk display unit is used for grading the shock index values to represent shock risk levels, and displaying the shock index values and suggestions on a monitor screen by using corresponding colors of different risk levels according to the shock risk levels;
5053. and the shock alarm unit is used for sounding a shock alarm when shock exists, namely when the shock index value is greater than 1.0.
Further, in this embodiment, the shock risk module further includes a shock risk prediction unit, configured to network with an electronic medical record system of a hospital, and predict a shock risk by combining a shock risk prediction algorithm according to various data and case records of a patient, and perform an audio prompt and a display prompt after the shock risk is predicted.
Specifically, in this embodiment, the blood pressure measurement module 501 includes a sphygmomanometer and a cuff, and uses an oscillation oscillography to measure blood pressure data, which uses the small change of cuff pressure caused by the vibration of the arterial wall of the limb to measure the waveform of pulsation, and measures average pressure at the position with the maximum amplitude, so as to calculate the values of systolic pressure and diastolic pressure; the operation of the sphygmomanometer is controlled through a blood pressure measurement control program, measurement data are received and processed, and the measured data are transmitted to a shock risk module of the electrocardiograph monitor.
Specifically, in this embodiment, the blood oxygen and pulse rate measurement module 502 uses a photoelectric sensor and a finger-clip type probe to measure, and the hemoglobin in the blood absorbs infrared light, and then the hemoglobin of the absorbed light changes by reflecting light to a detector emitting infrared light, so as to change the wavelength of the reflected light, measure the value of the blood oxygen saturation, indirectly measure the pulse signal of the human body by detecting the light intensity passing through the finger, and calculate the pulse rate; the operation of the optical sensor is controlled by a blood oxygen and pulse rate measurement control program, blood oxygen and pulse rate data are received and processed, and the measured data are transmitted to a shock risk module of the electrocardiograph monitor.
Specifically, in this embodiment, the electrocardiograph signal measurement module 503 uses the principle of cardiac electrophysiology to measure the electrocardiograph signal, the electrocardiograph signal mainly originates from excitation and conduction of cardiac muscle, and through attachment of electrodes, the electrocardiograph signal at each part of the heart can be detected, and the potential difference exists between the body surfaces, and these electrocardiograph signals are recorded in real time after being amplified, filtered, etc.; an electrocardiosignal is usually collected by contacting an electrocardiosignal patch or a lead wire with the body of a patient, and the collected electrocardiosignal data is transmitted to a processing program such as amplification, filtering and the like on an electrocardiosignal monitor, namely a microprocessor for processing the electrocardiosignal data, and the electrocardiosignal data is transmitted to a shock risk module of the electrocardiosignal monitor after being processed.
Specifically, in this embodiment, the display module 504 displays images and characters on the screen of the electrocardiograph monitor in real time through the built-in liquid crystal display screen, and the display control program controls the shock risk display unit to display corresponding images and characters on the monitor screen in real time according to the calculation result of the shock index and other data.
Specifically, in this embodiment, the shock risk module 505 executes an algorithm for calculating a shock index through the microprocessor, the shock index calculation program realizes the calculation of the shock index, processes and analyzes the shock index according to the blood pressure data, the blood oxygen and pulse rate data and the electrocardio signal data to obtain the value of the shock index, classifies the shock index according to the value of the shock index, determines the shock risk level, displays the value of the shock index and the prompt through the display module, uses different colors to represent different shock risk levels, and after clicking the shock index value on the liquid crystal screen of the electrocardiograph monitor, corresponding processing advice and measures can appear.
Further, the shock alarm unit 5053 uses an alarm device such as a buzzer to sound a shock alarm, and triggers the alarm device to sound an alarm when the value of the shock index is greater than 1.0 through an alarm control program.
It should be noted that, in this embodiment, the data transmission between each module and each unit is that the data collected by each module is transmitted to the shock risk module of the electrocardiograph monitor for processing and analyzing by a digital signal transmission mode, such as serial communication or a data bus, and the shock risk module of the electrocardiograph monitor can control the work of other modules through an instruction program, for example, when the blood pressure data is needed, the shock risk module can send an instruction to the instruction receiving program of the blood pressure measuring module, and the sphygmomanometer is started for measurement and transmission.
Further, in this embodiment, the method further includes error prompting, specifically: before the shock index calculation, if the data of other modules fails to be acquired, displaying a word of 'acquisition failure' in an area which should display the shock index value on a display screen, and simultaneously triggering an alarm device by a shock alarm unit to send out alarm sound; if the shock index exceeds the preset threshold after the shock risk module calculates the shock index, the area which should display the shock index value on the display screen displays the word of 'calculation error', and the shock alarm unit can trigger the alarm device to send out alarm sound.
It should be noted that the above modules correspond to the steps in embodiment 1, and the above modules are the same as examples and application scenarios implemented by the corresponding steps, but are not limited to those disclosed in embodiment 1. It should be noted that the modules described above may be implemented as part of a system in a computer system, such as a set of computer-executable instructions.
In this embodiment, by setting the blood pressure measurement module 501, the blood oxygen and pulse rate measurement module 502, the electrocardio signal measurement module 503, the display module 504, the shock risk module 505, the shock index calculation unit 5051, the shock risk display unit 5052, and the shock alarm unit 5053, the blood pressure data and the heart rate data obtained by the above modules are transmitted to the shock index calculation unit, the shock index is calculated, and the shock index is displayed on the crystal screen of the electrocardiograph monitor through the shock risk display unit, so that medical staff can timely and accurately understand the shock risk of clinical patients, the burden of the medical staff is reduced, and the safety of the patients is increased.
In more embodiments, as shown in fig. 3, a shock risk calculation schematic is shown, specifically:
the sphygmomanometer transmits the measured blood pressure data to the shock risk module;
the photoelectric sensor transmits the measured blood oxygen and pulse rate data to the shock risk module;
the electrocardio electrode patch transmits the electrocardio signal data obtained by measurement to the shock risk module;
the microprocessor in the shock risk module calculates a shock index according to the received data and transmits the shock index to the liquid crystal display screen of the electrocardiograph monitor;
when the shock index value is abnormal or data cannot be received, a buzzer in the shock risk module sounds to prompt errors;
and after receiving the shock index related data, the liquid crystal display screen displays the shock index related data.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims. It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A method for designing a multiparameter electrocardiographic monitor for displaying shock index, comprising:
carrying out blood pressure measurement by adopting an oscillation oscillometric method to obtain blood pressure data;
measuring blood oxygen and pulse rate by adopting an optical method to obtain blood oxygen and pulse rate data;
measuring electrocardiosignals based on a heart electrophysiology principle to obtain electrocardiosignal data;
displaying images and characters on a monitor screen in real time based on a display module;
calculating a shock index by a shock index calculation unit based on the blood pressure data, the blood oxygen, the pulse rate and the electrocardiosignal data, and displaying the shock index value on the monitor screen;
the calculation formula for calculating the shock index is as follows:
si=pr/SBP, where PR represents the pulse rate; SBP represents systolic blood pressure;
the shock index value is displayed on a monitor screen to represent the shock risk size, and the shock risk is classified based on the shock index value.
2. The method of claim 1, wherein the blood pressure data comprises systolic pressure, diastolic pressure, mean arterial pressure.
3. The method of claim 1, wherein the classifying the shock risk displays the general protection and prevention of the corresponding classified risk on the monitor screen.
4. The method for designing a multiparameter electrocardiographic monitor for displaying shock index according to claim 1, wherein said classifying said shock risk is specifically:
risk of shock: the SI value is between 0.5 and 0.7, the shock index value is displayed behind the blood pressure value on the monitor screen, the content color is white, and no prompt is displayed;
there may be a risk of shock: the SI value is between 0.7 and 0.9, shock index value and prompt are displayed behind the blood pressure value on the monitor screen, the content color is green, and the prompt is: attention is paid;
general shock risk: the SI value is between 0.9 and 1.0, shock index value and prompt are displayed behind the blood pressure value on the monitor screen, the content color is yellow, and the prompt is: there is a risk of shock, please pay attention to the moment.
5. The method of claim 1, wherein said classifying said shock risk further comprises:
shock exists: the SI value is greater than 1.0, which indicates that the hemodynamic condition is worsened, shock is clearly present, at the moment, the shock index value and the prompt are displayed behind the blood pressure value of the monitor screen, the content color is red, and an alarm sound is sent out, and the prompt is: shock, please deal with immediately.
6. The method of claim 4, further comprising an error prompt, wherein if the acquisition of the data of the other modules fails, the "acquisition failure" word is displayed in the area where the shock index value should be displayed on the display screen, and if the shock index exceeds the preset threshold after the shock risk module calculates the shock index, the "calculation error" word is displayed in the area where the shock index value should be displayed on the display screen.
7. The method according to claim 1, wherein the image is a shock index trend line graph, and the shock index trend line graph is displayed on the monitor screen after clicking the shock index value.
8. A multiparameter electrocardiographic monitor system that displays shock indices, the system comprising:
the blood pressure measuring module is used for measuring blood pressure data by adopting an oscillation oscillography;
the blood oxygen and pulse rate measuring module is used for measuring blood oxygen and pulse rate by adopting an optical method;
the electrocardiosignal measuring module is used for measuring electrocardiosignals based on the principle of cardiac electrophysiology;
the display module is used for displaying images and characters on a monitor screen in real time based on the liquid crystal display unit;
and the shock risk module is used for calculating a shock index through the microprocessor based on the blood pressure data, the blood oxygen, the pulse rate and the electrocardiosignal data, and displaying the shock index value on the monitor screen.
9. The multi-parameter electrocardiographic monitor system of claim 8 wherein the shock risk module comprises:
a shock index calculation unit for calculating a shock index;
the shock risk display unit is used for grading the shock index values to represent shock risk levels, and displaying the shock index values and suggestions on a monitor screen by using corresponding colors of different risk levels according to the shock risk levels;
and the shock alarm unit is used for sounding a shock alarm when shock exists, namely when the shock index value is greater than 1.0.
10. The system of claim 8, wherein the shock risk display unit is further configured to display an error indication, if the data of the other modules fails to be obtained, the area on the display screen that should be displayed with the shock index value displays a "failure to obtain" word, if the shock risk module calculates the shock index, the shock risk module exceeds a predetermined threshold, and the area on the display screen that should be displayed with the shock index value displays a "calculation error" word.
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