CN110960205A - Blood pressure measuring method, monitoring device and storage medium - Google Patents
Blood pressure measuring method, monitoring device and storage medium Download PDFInfo
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
- A61B5/0225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
- A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics
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- A—HUMAN NECESSITIES
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- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/746—Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms
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Abstract
The invention discloses a blood pressure measuring method, a monitoring device and a storage medium, comprising: judging the type of monitoring equipment, wherein the type of the monitoring equipment comprises bedside monitoring equipment and telemetering monitoring equipment; and determining a blood pressure measuring mode according to the type of the monitoring equipment and the corresponding state of the monitoring equipment so as to obtain a blood pressure curve of the patient. The invention determines the blood pressure curve of the patient by judging the type of the monitoring equipment and determining the measurement mode of the blood pressure of the patient according to the type of the monitoring equipment and different states of the monitoring equipment, thereby improving the measurement accuracy.
Description
Technical Field
The present invention relates to medical monitoring, and more particularly to a blood pressure measuring method, a monitoring device, and a storage medium.
Background
In the field of medical electronics, there are two mainstream methods for non-invasive blood pressure measurement, namely, the oscillation method (also called oscillometric method) and the PTT method, however, in these applications, there are several disadvantages as follows:
when the blood pressure is measured by adopting a PTT method, certain errors exist in the measurement result, and particularly when the physical state of a patient changes, the variation coefficients a and b of the PTT measurement method change to a certain extent, so that the measurement result has larger deviation;
the oscillation method is independently adopted to measure the blood pressure, the measurement accuracy is approved, but in the measurement process, due to the processes of inflating the air pump, pressing the cuff, deflating the steps and the like, the equipment can disturb the normal rest of the patient when carrying out the measurement actions, so that the normal rest of the patient is influenced, and the physiological state of the patient is changed, so that the blood pressure value of the patient cannot reflect the truest condition. For example, during the sleep, the air pump buffer wakes up, and the heart rate and the blood pressure are changed;
secondly, the oscillation method requires that the patient is in a relatively stable state when measuring the blood pressure, and if the patient is in a motion state or the arm moves in the measuring process, the monitor may not obtain the pulse wave of the patient or obtain the wrong pulse wave, so that the blood pressure value cannot be measured or the wrong blood pressure value is measured;
for the dynamic blood pressure measurement, the measurement is carried out every 15 minutes/half hour for 24 hours, so that the patient can not sleep normally, the dynamic blood pressure curve obtained by measurement is inconsistent with the actual condition of the patient, and even misdiagnosis is caused.
Thus, the prior art has yet to be improved and enhanced.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a blood pressure measuring method, a monitoring device and a storage medium for solving the problem that the blood pressure measuring mode of a patient cannot be dynamically adjusted when the patient measures the blood pressure in the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method of blood pressure measurement, comprising:
judging the type of monitoring equipment, wherein the type of the monitoring equipment comprises bedside monitoring equipment and telemetering monitoring equipment;
and determining a blood pressure measuring mode according to the type of the monitoring equipment and the corresponding state of the monitoring equipment so as to obtain a blood pressure curve of the patient.
The blood pressure measuring method, wherein the blood pressure measuring method further comprises:
the method comprises the steps of presetting a detection period of the monitoring equipment, wherein the detection period comprises blood pressure measurement interval time and blood pressure measurement duration.
The blood pressure measuring method, wherein the determining a blood pressure measuring mode according to the type of the monitoring device and the state corresponding to the monitoring device to obtain the blood pressure curve of the patient specifically includes:
when the type of the monitoring equipment is bedside monitoring equipment, configuring a sleep period and a waking period for the monitoring equipment in advance;
when the monitoring equipment is in a sleep period, starting an oscillation measurement method to measure the blood pressure of a patient so as to realize the calibration of a PTT measurement method;
continuously measuring the blood pressure of the patient according to the detection period of the monitoring equipment and the calibrated PTT measurement method;
when the measured blood pressure value change quantity exceeds a first blood pressure threshold value and the blood pressure detection is started next time, measuring the blood pressure of the patient by adopting an oscillation measuring method so as to realize the calibration of a PTT measuring method;
and continuously measuring the blood pressure of the patient by using the calibrated PTT measuring method, and determining the blood pressure curve of the patient after the measurement is finished.
The blood pressure measuring method, wherein the determining a blood pressure measuring mode according to the type of the monitoring device and the state corresponding to the monitoring device to obtain the blood pressure curve of the patient specifically includes:
when the type of the monitoring equipment is the telemetering monitoring equipment, starting a primary oscillation measurement method to measure the blood pressure of the patient so as to realize the calibration of the PTT measurement method;
continuously measuring the blood pressure of the patient according to the detection period of the monitoring equipment and the calibrated PTT measurement method;
and continuously monitoring the state of the monitoring equipment, and determining the measurement mode of the blood pressure according to the state, wherein the state comprises a motion state, a sleep state and a stable state.
The blood pressure measuring method, wherein the determining a blood pressure measuring mode according to the type of the monitoring device and the state corresponding to the monitoring device to obtain the blood pressure curve of the patient specifically includes:
when the monitoring equipment is in a motion state, only a PTT measurement method is adopted for measuring the blood pressure;
and after the motion state is stopped, starting an oscillation measurement method to measure the blood pressure of the patient so as to realize the calibration of the blood pressure data measured in the motion state.
The blood pressure measuring method, wherein the measuring method for determining the blood pressure according to the state specifically includes:
when the monitoring equipment is in a sleep state, a PTT measuring method is adopted for measuring blood pressure;
when the blood pressure measurement is started, firstly starting an oscillation measurement method to measure the blood pressure, and calibrating the PTT coefficient while measuring the blood pressure value of a patient;
in the sleeping process, the blood pressure of a patient is continuously measured by a PTT measuring method, and a PTT change threshold value and timing are detected;
and determining whether to adopt an oscillation measurement method for measurement according to the PTT change threshold and the timing so as to realize the calibration of the PTT measurement method.
The blood pressure measuring method, wherein the determining whether to measure by using an oscillation measuring method according to the PTT change threshold and the timing to realize calibration of the PTT measuring method specifically comprises:
when the blood pressure threshold value measured by the PTT measurement method exceeds a second blood pressure threshold value, measuring by adopting an oscillation measurement method when blood pressure detection is started next time so as to realize calibration of the PTT measurement method;
or when the timing exceeds the first time threshold value, measuring by adopting an oscillation measuring method when the blood pressure detection is started next time so as to realize the calibration of the PTT measuring method.
The blood pressure measuring method, wherein the determining a blood pressure measuring mode according to the type of the monitoring device and the state corresponding to the monitoring device to obtain the blood pressure curve of the patient specifically includes:
when the monitoring equipment is in a steady state, the blood pressure measurement is carried out by adopting a mode of combining an oscillation method and a PTT measurement method.
A computer readable storage medium, wherein the computer readable storage medium stores one or more programs, which are executable by one or more processors to implement the steps in the blood pressure measurement method as described in any one of the above.
A monitoring device, wherein the monitoring device comprises: a processor and a memory; the memory having stored thereon a computer readable program executable by the processor; the processor, when executing the computer readable program, implements the steps in the blood pressure measuring method as described in any one of the above.
Has the advantages that: compared with the prior art, the invention provides a blood pressure measuring method, a monitoring device and a storage medium, which comprises the following steps: judging the type of monitoring equipment, wherein the type of the monitoring equipment comprises bedside monitoring equipment and telemetering monitoring equipment; and determining a blood pressure measuring mode according to the type of the monitoring equipment and the corresponding state of the monitoring equipment so as to obtain a blood pressure curve of the patient. The invention determines the blood pressure curve of the patient by judging the type of the monitoring equipment and determining the measurement mode of the blood pressure of the patient according to the type of the monitoring equipment and different states of the monitoring equipment, thereby improving the measurement accuracy.
Drawings
Fig. 1 is a flow chart of a blood pressure measuring method provided by the present invention.
Fig. 2 is a functional block diagram of a telemetry and monitoring device provided by the present invention.
Fig. 3 is a functional block diagram of a bedside monitoring device provided by the present invention.
Fig. 4 is a schematic diagram of a PTT measurement method provided by the present invention.
Fig. 5 is a flowchart of step S200 in the blood pressure measuring method provided by the present invention.
Fig. 6 is another flowchart of step S200 in the blood pressure measuring method provided by the present invention.
Fig. 7 is a flowchart of step S208 in the blood pressure measuring method provided by the present invention.
Fig. 8 is another flowchart of step S208 in the blood pressure measuring method provided by the present invention.
Fig. 9 is a schematic structural diagram of a monitoring device according to a preferred embodiment of the present invention.
Detailed Description
The present invention provides a blood pressure measuring method, a monitoring device and a storage medium, and in order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The invention will be further explained by the description of the embodiments with reference to the drawings.
The present embodiment provides a blood pressure measuring method, as shown in fig. 1, the method includes:
s100, judging the type of monitoring equipment, wherein the type of the monitoring equipment comprises bedside monitoring equipment and telemetering monitoring equipment;
s200, determining a blood pressure measuring mode according to the type of the monitoring equipment and the corresponding state of the monitoring equipment to obtain a blood pressure curve of the patient.
In particular, the monitoring device may be a common bedside monitor or a wearable telemetric monitor. The monitor can measure basic conventional parameters such as non-invasive blood pressure (oscillation measurement), blood oxygen saturation, electrocardiosignals and the like. When the monitor is a common bedside monitor, the monitor is provided with a timing unit. The monitor can set the sleep time interval or the waking time interval of the monitor through the timing unit, and in the sleep time interval, the monitor monitors the blood pressure value of a patient as far as possible by adopting a PTT method except necessary oscillation method measurement calibration. When the patient is in the waking period, the monitor can adopt a flexible combination of the oscillation method and the PTT method to test the blood pressure of the patient.
When the monitor is a wearable telemetering monitor, the monitor is provided with a motion detection unit besides a timing unit. Since the telemetric monitor is worn on the patient, the state of the motion monitoring part in the telemetric monitor can reflect the activity state of the patient. At this point, the telemetric monitor can define the monitor into three states depending on the state of the motion monitoring component: a sports state, a sleep state and a stable state. The telemetric monitor dynamically adjusts the blood pressure measurement mode according to the current state of the patient.
Therefore, the invention can determine the blood pressure measuring mode according to the type of the monitoring equipment and the corresponding state of the monitoring equipment, thereby obtaining the blood pressure curve of the patient. Fig. 2 is a functional block diagram of a telemetry monitoring device provided in the present invention, which specifically includes:
the central processing unit 101 is a central control processor of the telemetering monitor terminal and is responsible for processing and operation of various physiological parameters, receiving and transmitting control of data, display and the like. The unit is located as a core control device of the whole product, on an internal circuit board.
102 is a power supply unit consisting of a battery and a power management circuit, alternatively, the battery may be a built-in lithium polymer battery or a replaceable rechargeable battery. The energy storage unit can store electric energy and release electric energy at the same time, and the unit is installed on an internal battery compartment of the equipment at the same time. The power management circuit mainly provides proper voltage power for each component and supports the operation of each component.
103 is a touch and display unit, which is mainly composed of a key, a touch screen, a display screen and other human-computer interactive input devices, and an operator operates and controls the equipment through the unit. The display screen displays the waveform and the result of the operation, etc.
104 is an alarm unit, which is mainly an audible and visual alarm signal and consists of a red-yellow-blue three-color indicator light, a loudspeaker and alarm character information.
105 is a parameter acquisition unit, mainly an accessory connected to the patient and an analog front-end circuit for acquiring various parameters, and is responsible for acquiring and amplifying physiological parameters of the patient body, and then sending the physiological parameters to the control processing unit 101, which is a circuit for signal acquisition and conversion and is arranged on an internal circuit board.
And 106, a motion monitoring unit which consists of an accelerometer and a measurement algorithm thereof, and by which the system can acquire the motion state of the equipment.
The wireless communication unit 107 is composed of a radio frequency circuit, an antenna and the like. The unit is typically integrated into a circuit board inside the device and the antenna is mounted on the inside wall of the housing. Alternatively, the antenna may be formed by one or two antennas, and after the device is turned on, the unit searches for a wireless AP and connects to the AP. When the telemetering monitor terminal moves, the unit can continuously detect the signal strength of the wireless AP received at the current position, and when the wireless AP with stronger signal is found, the unit can automatically switch connection, so that the roaming of the wireless network is realized.
108 is a timing unit, which is mainly composed of a timer in software and realizes the timing function.
Further, as shown in fig. 3, fig. 3 is a functional block diagram of a bedside monitoring device provided by the present invention, and the only difference from the structure of the telemetric monitoring device is that there are less motion detection units and only timing units.
In an implementation manner of this embodiment, the blood pressure measuring method further includes:
s10, presetting a detection period of the monitoring device, wherein the detection period comprises blood pressure measurement interval time and blood pressure measurement duration.
Specifically, the blood pressure measurement interval time is 15 minutes; the blood pressure measuring time is 24 hours, that is, the monitoring device can measure every 15 minutes for continuously measuring 24 hours, so that the change situation of the blood pressure of the patient can be more accurately judged by obtaining the complete blood pressure curve of the patient in a certain time period. Meanwhile, compared with the mode of electrically measuring the blood pressure, the method has the following advantages:
the accidental blood pressure measurement is eliminated, the influence of factors such as emotion, exercise, food intake, smoking, drinking and the like on the blood pressure is avoided, and the blood pressure condition is objectively and truly reflected;
more blood pressure data can be obtained from the dynamic blood pressure, and the change rule of the blood pressure in the whole day can be actually reflected;
for early asymptomatic patients with mild hypertension or critical hypertension, the detection rate is improved and the patients can be treated in time;
ambulatory blood pressure may guide drug therapy. In many cases, it can be used to determine the therapeutic effect of a drug, to aid in the selection of a drug, to adjust the dosage and timing of administration;
judging whether the target organ (organ easy to damage by hypertension) is damaged or not for the hypertension patient. The difference between the day and the night is small for the hypertension patients with myocardial hypertrophy, fundus dynamic vascular lesion or renal function change;
predicting the time of the sudden onset of cardiovascular and cerebrovascular diseases in one day. When the blood pressure is suddenly increased in the early morning, cardiovascular and cerebrovascular diseases are most easily caused;
the dynamic blood pressure has important significance for judging prognosis.
In the field of medical electronics, two mainstream noninvasive blood pressure measurement methods include an oscillation method (also called oscillometric method) and a PTT (also called pulse wave propagation time) method, and the specific principle is as follows:
1. oscillation method
The equipment for measuring blood pressure by adopting an oscillation method generally comprises an air pump, an air valve, an arithmetic component, a control circuit, a cuff and the like. In the using process, the oversleeve is sleeved on the upper side of the arm of the patient, the air pump inflates the oversleeve, the inflated oversleeve compresses the arm, the blood vessel pulse wave in the compressed arm can be transmitted to the pressure sensor of the control circuit through the oversleeve, the trachea and the like, and the sensor can obtain the pulse wave in the blood vessel of the patient.
During the use process, the equipment is automatically inflated by a pump to pressurize the inside of the sleeve, then the pressure is reduced by adopting a graded decreasing method, generally 0.53-0.93Kpa (4-7mmHg) is used for deflation every second, the equipment automatically identifies the vibration condition of the pulse when each deflation is waited for a while, after the systolic pressure and the diastolic pressure are clearly obtained, the systolic pressure, the average pressure and the diastolic pressure are reported after the measurement is finished, or the oscillation condition is analyzed after the measurement is finished, and then the numerical value is reported.
If the limb suddenly moves or the cuff is bumped during inflation, oscillations can occur, if for a longer period of time, and the device can automatically discard the measurement and re-inflate the measurement.
2. PTT measuring method
The conventional monitoring equipment can simultaneously measure physiological parameters such as blood oxygen saturation, electrocardio information, noninvasive blood pressure and the like. As shown in fig. 4, fig. 4 is a schematic diagram of a PTT measurement method provided by the present invention. The time difference between the pulse wave and the ECG wave peak can be analyzed by using the pulse wave and the ECG signal of the finger measured by the monitor, and the time difference is called PTT and represents the time difference of the blood flow from the heart beat to the test position (such as the tail end of the finger).
Because the propagation and collection of the electrocardiosignals are light speed in principle, the propagation time can be neglected to be 0, and certain time is needed for blood to flow to the wrist part, the PTT is mainly influenced by the blood flow speed, and the blood flow speed is mainly influenced by the blood pressure.
In 1878, Moens and Korteweg proposed a mathematical model that demonstrated a quasi-linear relationship between pulse-fourier transit time and blood pressure:
wherein △ T is the pulse wave propagation time variation value, △ P is the arterial blood pressure variation value, and γ is the sign value of the arterial blood vessel.
In 1957, Lansdown proposed that for a certain individual, PTT and blood pressure BP are linearly related, which is relatively stable over a period of time. Under the condition of neglecting some non-measurable arterial blood vessel parameters, a more intuitive model of the arterial blood pressure and the pulse wave propagation time is established as follows:
BP＝a+b×PTT
in the formula, BP is arterial blood pressure, PTT is pulse wave propagation time, and a and b are undetermined linear fitting variation coefficients.
Therefore, the monitor can measure the blood pressure by adopting the conventional inflatable oscillation method, and can also calculate the blood pressure value by combining the electrocardio signals and the pulse wave signals.
The advantages and disadvantages of both blood pressure measurement methods are summarized below:
in an implementation manner of this embodiment, the bedside monitoring device is provided with a timing unit, and the bedside monitoring device can dynamically adjust the blood pressure measurement manner according to the timing unit, so as to reduce the disturbance to the sleep of the patient, and accordingly, as shown in fig. 5, fig. 5 is a flowchart of step S200 in the blood pressure measurement method provided by the present invention. The determining a blood pressure measurement mode according to the type of the monitoring device and the state corresponding to the monitoring device to obtain the blood pressure curve of the patient specifically includes:
s201, when the type of the monitoring equipment is bedside monitoring equipment, configuring a sleep time interval and a waking time interval for the monitoring equipment in advance;
s202, before the monitoring equipment is in a sleep period, starting an oscillation measurement method to measure the blood pressure of a patient so as to realize the calibration of a PTT measurement method;
s203, continuously measuring the blood pressure of the patient according to the detection period of the monitoring equipment and the calibrated PTT measurement method;
s204, measuring the blood pressure of the patient by adopting an oscillation measurement method when the blood pressure detection is started next time after the change amount of the measured blood pressure value exceeds a first blood pressure threshold value so as to realize the calibration of the PTT measurement method;
s205, continuously using the calibrated PTT measuring method to measure the blood pressure of the patient, and determining the blood pressure curve of the patient after the measurement is finished.
Specifically, the interval time and the duration of blood pressure measurement are set by a patient through a monitoring device, for example, the measurement is carried out once every 15 minutes for 24 hours, meanwhile, a sleep period and an awake period of a monitor are set, for example, 22:00-7:00 are the sleep periods and 7:00-22:00 are the awake periods, when the sleep period is entered, an oscillation method is started to measure the non-invasive blood pressure to obtain a blood pressure value P1, and meanwhile, a calibration is carried out on a coefficient in the PTT measurement method, after the patient enters the sleep period, the physical sign state is relatively stable, after that, the monitoring device continuously measures the blood pressure of the patient through the PTT method, after the blood pressure value change amount of the patient is detected to exceed a first blood pressure threshold △ N1, if the blood pressure change value exceeds 15mmHg compared with the P1, the blood pressure measurement is carried out through the oscillation method, the coefficient of the PTT is calibrated again, the blood pressure value measured through the PTT is changed into a stable state, and the whole blood pressure value measured through the PTT measurement is changed, so that the whole PTT blood pressure measurement can be accurately measured, the whole PTT blood pressure change can be obtained through the whole stimulation process.
In an implementation manner of this embodiment, as shown in fig. 6, fig. 6 is another flowchart of step S200 in the blood pressure measuring method provided by the present invention. The determining the blood pressure measuring mode according to the type of the monitoring device and the corresponding state of the monitoring device to obtain the blood pressure curve of the patient specifically comprises:
s206, when the type of the monitoring equipment is telemetering monitoring equipment, starting a primary oscillation measurement method to measure the blood pressure of the patient so as to realize the calibration of a PTT measurement method;
s207, continuously measuring the blood pressure of the patient according to the detection period of the monitoring equipment and the calibrated PTT measurement method;
s208, continuously monitoring the state of the monitoring equipment, and determining the measurement mode of the blood pressure according to the state, wherein the state comprises a motion state, a sleep state and a stable state.
Specifically, as for the bedside monitoring device, the telemetering monitoring device has a motion detection unit in addition to the timing unit, and after the motion detection unit is combined, the traffic flows are as follows: the measurement interval time and duration or measurement sequence of the blood pressure is set on the telemetering and monitoring equipment, namely how long the interval time is, the measurement is started for one time, and how long the measurement is continued. For example, it may be set to start once every 15 minutes for 24 hours; when the method is started, firstly, the noninvasive blood pressure measurement of an oscillation method is started, the measurement result calibrates the PTT coefficient, and then the PTT method is adopted for continuous blood pressure measurement. (when the blood pressure is measured, the first measurement adopts oscillation, and the measured result of the oscillation method is used for calibrating coefficients a and b of PTT); the telemetering monitoring equipment continuously monitors the state of the motion monitoring unit of the telemetering monitoring equipment and judges that the telemetering monitoring equipment is in a motion state/a stable state/a sleep state; the exercise state, the sleep state and the stable state are divided into three states according to the state of the equipment.
Further, when the monitoring device is in the exercise state, only the PTT measurement method is used for measurement, and accordingly, as shown in fig. 7, fig. 7 is a flowchart of step S208 in the blood pressure measurement method provided by the present invention. The determining a blood pressure measurement mode according to the type of the monitoring device and the state corresponding to the monitoring device to obtain the blood pressure curve of the patient specifically includes:
s2081, when the monitoring device is in a motion state, only a PTT measurement method is adopted for blood pressure measurement;
s2082, after the exercise state is stopped, starting an oscillation measurement method to measure the blood pressure of the patient, so as to realize calibration of the blood pressure data measured in the exercise state.
Specifically, when the monitoring device is in a motion state, the PTT method is only used for measuring, after the motion state is stopped, when the next noninvasive blood pressure measurement of the patient is started, the oscillation method is used for measuring, and the measurement result calibrates blood pressure data obtained by testing in the whole motion state to obtain a curve of the noninvasive blood pressure. It should be noted that the status of the monitoring device can be detected by an acceleration sensor configured in the monitoring device.
Further, when the monitoring device is in the sleep state, the PTT is preferentially used for blood pressure measurement, and accordingly, as shown in fig. 8, fig. 8 is another flowchart of step S208 in the blood pressure measurement method provided by the present invention. The determining a blood pressure measurement mode according to the type of the monitoring device and the state corresponding to the monitoring device to obtain the blood pressure curve of the patient specifically includes:
s2083, when the monitoring device is in a sleep state, measuring the blood pressure by adopting a PTT measuring method;
s2084, when the blood pressure measurement is started, firstly starting an oscillation measurement method to measure the blood pressure, and calibrating the PTT coefficient while measuring the blood pressure value of the patient;
s2085, in the sleeping process, continuously measuring the blood pressure of the patient by a PTT measuring method, and simultaneously detecting a PTT change threshold and timing;
specifically, the determining whether to perform measurement by using an oscillation measurement method according to the PTT variation threshold and the timing to realize calibration of the PTT measurement method specifically includes:
when the blood pressure threshold value measured by the PTT measurement method exceeds a second blood pressure threshold value, measuring by adopting an oscillation measurement method when blood pressure detection is started next time so as to realize calibration of the PTT measurement method;
or when the timing exceeds the first time threshold value, measuring by adopting an oscillation measuring method when the blood pressure detection is started next time so as to realize the calibration of the PTT measuring method.
S2086, determining whether to adopt an oscillation measurement method for measurement according to the PTT change threshold and the timing so as to realize calibration of the PTT measurement method.
Specifically, when the monitoring device is detected to be in a sleep state, PTT is preferentially adopted for blood pressure measurement, when a measurement sequence is entered for starting blood pressure measurement, one oscillation method non-invasive blood pressure measurement is started first, the blood pressure value of a patient is measured, meanwhile, the variation coefficient of the PTT measurement method is calibrated, during the sleep process, the blood pressure measurement is continuously carried out on the patient through the PTT method, the PTT variation threshold value and timing are detected simultaneously, when a second blood pressure threshold value measured through the PTT exceeds △ N2, the oscillation method is adopted for measuring next time when the blood pressure measurement is started, and the calibration is continued, the threshold value of △ N2 is enough, such as 20mmgH, when the timing exceeds T1, the oscillation method is adopted for measuring next time when the blood pressure is started, the PTT is continuously calibrated, T1 is enough, such as 6 hours or 8 hours, and after the measurement is finished, a blood pressure curve graph of the whole process is drawn.
In an implementation manner of this embodiment, the determining a measurement mode of the blood pressure according to the type of the monitoring device and the state corresponding to the monitoring device to obtain the blood pressure curve of the patient specifically includes:
when the monitoring equipment is in a steady state, the blood pressure measurement is carried out by adopting a mode of combining an oscillation method and a PTT measurement method.
Specifically, under the steady state of the monitoring device, the mode of combining the oscillation method and the PTT measurement method is adopted for blood pressure measurement, for example, the combination of the 3PPT +1 oscillation method is adopted for measurement according to the interval time and frequency set by the patient, namely, three times of PTT are adopted, the interval of one oscillation method is adopted for collection, for example, the patient sets that the blood pressure is measured once in 15 minutes, then the oscillation method is started for measurement once in 0 minute to obtain data, the PTT is adopted for data obtained in 15 minutes/30 minutes/45 minutes, the oscillation method is adopted in the fourth time, the result obtained by the test is continuously monitored in the process, when the change amount of the PTT blood pressure value is measured to be larger than a certain threshold value △ N3, the next time of blood pressure measurement, the oscillation method is adopted, the PTT △ N3 can be 10mmHg and is smaller than the PTT △ N1 and △ N2, and after the measurement is finished, the blood pressure curve graph in the whole process is drawn.
The present invention also provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps in the blood pressure measurement method described in the above embodiments.
The present invention also provides a monitoring device, as shown in fig. 9, comprising at least one processor (processor) 20; a display screen 21; and a memory (memory)22, which may also include a Communications Interface (Communications Interface)23 and a bus 24. The processor 20, the display 21, the memory 22 and the communication interface 23 can communicate with each other through the bus 24. The display screen 21 is configured to display a patient guidance interface preset in an initial setup mode. The communication interface 23 may transmit information. The processor 20 may call logic instructions in the memory 22 to perform the methods in the embodiments described above.
Furthermore, the logic instructions in the memory 22 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product.
The memory 22, which is a computer-readable storage medium, may be configured to store software programs, computer-executable programs, such as program instructions or modules corresponding to the methods in the embodiments of the present disclosure. The processor 30 executes the functional application and the data processing by executing the software program, instructions or modules stored in the memory 22, that is, implements the method in the above-described embodiment.
The memory 22 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Further, the memory 22 may include a high speed random access memory and may also include a non-volatile memory. For example, a variety of media that can store program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, may also be transient storage media.
In addition, the specific processes loaded and executed by the storage medium and the instruction processors in the terminal device are described in detail in the method, and are not stated herein.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of measuring blood pressure, comprising:
judging the type of monitoring equipment, wherein the type of the monitoring equipment comprises bedside monitoring equipment and telemetering monitoring equipment;
and determining a blood pressure measuring mode according to the type of the monitoring equipment and the corresponding state of the monitoring equipment so as to obtain a blood pressure curve of the patient.
2. The method for measuring blood pressure according to claim 1, further comprising:
the method comprises the steps of presetting a detection period of the monitoring equipment, wherein the detection period comprises blood pressure measurement interval time and blood pressure measurement duration.
3. The method of claim 2, wherein the determining the blood pressure measurement mode according to the type of the monitoring device and the corresponding status of the monitoring device to obtain the blood pressure curve of the patient specifically comprises:
when the type of the monitoring equipment is bedside monitoring equipment, configuring a sleep period and a waking period for the monitoring equipment in advance;
when the monitoring equipment is in a sleep period, starting an oscillation measurement method to measure the blood pressure of a patient so as to realize the calibration of a PTT measurement method;
continuously measuring the blood pressure of the patient according to the detection period of the monitoring equipment and the calibrated PTT measurement method;
when the measured blood pressure value change quantity exceeds a first blood pressure threshold value and the blood pressure detection is started next time, measuring the blood pressure of the patient by adopting an oscillation measuring method so as to realize the calibration of a PTT measuring method;
and continuously measuring the blood pressure of the patient by using the calibrated PTT measuring method, and determining the blood pressure curve of the patient after the measurement is finished.
4. The method of claim 2, wherein the determining the blood pressure measurement mode according to the type of the monitoring device and the corresponding status of the monitoring device to obtain the blood pressure curve of the patient specifically comprises:
when the type of the monitoring equipment is telemetering monitoring equipment, starting a primary oscillation measurement method to measure the blood pressure of a patient so as to realize the calibration of a PTT measurement method;
continuously measuring the blood pressure of the patient according to the detection period of the monitoring equipment and the calibrated PTT measurement method;
and continuously monitoring the state of the monitoring equipment, and determining the measurement mode of the blood pressure according to the state, wherein the state comprises a motion state, a sleep state and a stable state.
5. The method according to claim 4, wherein the determining the blood pressure measurement mode according to the type of the monitoring device and the corresponding state of the monitoring device to obtain the blood pressure curve of the patient specifically comprises:
when the monitoring equipment is in a motion state, only a PTT measurement method is adopted for measuring the blood pressure;
and after the motion state is stopped, starting an oscillation measurement method to measure the blood pressure of the patient so as to realize the calibration of the blood pressure data measured in the motion state.
6. The method for measuring blood pressure according to claim 4, wherein the measuring mode for determining the blood pressure according to the state specifically includes:
when the monitoring equipment is in a sleep state, a PTT measuring method is adopted for measuring blood pressure;
when the blood pressure measurement is started, firstly starting an oscillation measurement method to measure the blood pressure, and calibrating the PTT coefficient while measuring the blood pressure value of a patient;
in the sleeping process, the blood pressure of a patient is continuously measured by a PTT measuring method, and a PTT change threshold value and timing are detected;
and determining whether to adopt an oscillation measurement method for measurement according to the PTT change threshold and the timing so as to realize the calibration of the PTT measurement method.
7. The method of claim 6, wherein the determining whether to measure by using an oscillation measurement method according to the PTT variation threshold and the timing to calibrate the PTT measurement method specifically comprises:
when the blood pressure threshold value measured by the PTT measuring method exceeds a second blood pressure threshold value, measuring by adopting an oscillation measuring method when the blood pressure detection is started next time so as to realize the calibration of the PTT measuring method;
or when the timing exceeds the first time threshold value, measuring by adopting an oscillation measuring method when the blood pressure detection is started next time so as to realize the calibration of the PTT measuring method.
8. The method according to claim 4, wherein the determining the blood pressure measurement mode according to the type of the monitoring device and the corresponding state of the monitoring device to obtain the blood pressure curve of the patient specifically comprises:
when the monitoring equipment is in a stable state, the mode of combining the oscillation method and the PTT measurement method is adopted for blood pressure measurement.
9. A computer readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps of the blood pressure measurement method according to any one of claims 1 to 8.
10. A monitoring device, characterized in that the monitoring device comprises: a processor and a memory; the memory has stored thereon a computer readable program executable by the processor; the processor, when executing the computer readable program, implements the steps in the blood pressure measuring method according to any one of claims 1 to 8.
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