CN113995396B - Be applied to cardiovascular internal medicine's blood pressure monitor - Google Patents
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- CN113995396B CN113995396B CN202111595081.0A CN202111595081A CN113995396B CN 113995396 B CN113995396 B CN 113995396B CN 202111595081 A CN202111595081 A CN 202111595081A CN 113995396 B CN113995396 B CN 113995396B
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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
- A61B5/02—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
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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
- A61B5/02—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
- A61B5/02225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers using the oscillometric method
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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
- A61B5/02—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
- A61B5/02233—Occluders specially adapted therefor
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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
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
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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
- A61B5/7445—Display arrangements, e.g. multiple display units
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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
Abstract
The invention relates to a blood pressure monitor applied to cardiovascular medicine, which comprises a main arm belt, an auxiliary arm belt, a blood oxygen probe, a display, an alarm, a control panel and a central control system. When the invention detects the blood pressure value, the detected blood pressure value is adjusted according to the fluctuation data of the pulse and the fluctuation of the blood oxygen concentration, so that the displayed blood pressure value is more accurate, a blood pressure value adjusting parameter is arranged in the adjusting process, the value of the blood pressure value adjusting parameter is determined by the difference of the blood pressure values detected by the main arm belt and the auxiliary arm belt, the displayed blood pressure value is more accurate by periodically detecting the blood pressure values of the left arm and the right arm and adjusting the displayed blood pressure value according to the detected difference value, and the individual adaptability of the blood pressure detection is increased.
Description
Technical Field
The invention relates to the technical field of blood pressure monitoring, in particular to a blood pressure monitor applied to cardiovascular medicine.
Background
The blood pressure is the pressure required to transport the blood of a person to various parts of the body. Blood pressure is the pressure acting on the wall of a blood vessel when blood flows in the blood vessel, and is the driving force for driving the blood to flow in the blood vessel. Normal blood pressure is a prerequisite for blood circulation and flow, and is regulated by various factors to keep normal, thereby providing sufficient blood volume for each tissue and organ to maintain normal metabolism. Hypertension is of great biological significance because it has serious consequences (hypotension, hypertension) and its disappearance is a precursor to death. The blood pressure measurement is influenced by various factors, such as emotional excitement, tension, exercise, and the like; hypertension is considered to be present if the non-diurnal blood pressure value reaches or exceeds the systolic pressure of 140mmHg and/or the diastolic pressure of 90mmHg at least 3 times using standard measurement methods under quiet, awake conditions, and if only the systolic pressure reaches the standard, it is called isolated systolic hypertension. The majority of hypertension is essential hypertension, and about 5% is secondary to other diseases, called secondary or symptomatic hypertension, such as chronic nephritis and the like. Hypertension is an important risk factor for atherosclerosis and coronary heart disease, and also an important cause of heart failure.
Ambulatory Blood Pressure Monitoring (ABPM) is a diagnostic technique for detecting the blood pressure of a human body in a daily life state within a set time by an instrument. The ABPM overcomes the defects that the blood pressure measurement in a clinic is less in frequency and easy to have observation errors, and can objectively reflect the actual level and fluctuation condition of the blood pressure, so that the ABPM is more and more widely applied to the aspects of determining clinical suspected hypertension patients, judging white overcoat hypertension and refractory hypertension, evaluating the curative effect of antihypertensive drugs, guiding treatment and the like. Because of the difference between human bodies, the blood pressure measurement is difficult to be accurate and stable, an accurate blood pressure measurement method is always the key point of research of people, and electronic blood pressure detection equipment based on an oscillography is produced. The current algorithm for measuring blood pressure is an amplitude coefficient method, the coefficient of the amplitude coefficient method is obtained in a statistical mode and is influenced by the elasticity of the cuff, the amplitude of oscillatory waves, the average arterial pressure of a human body, the blood oxygen content, the heart rate, the age and other factors, the individual adaptability is poor, and the calculation accuracy is not ideal enough.
Disclosure of Invention
Therefore, the invention provides a blood pressure monitor applied to the cardiovascular medicine, which is used for overcoming the problems of poorer individual adaptability and unsatisfactory calculation accuracy in the blood pressure monitoring in the prior art.
In order to achieve the above objects, the present invention provides a blood pressure monitor for cardiovascular medicine, comprising,
the armlet comprises a main armlet and an auxiliary armlet, wherein the main armlet can detect the blood pressure and pulse of the main armlet, the auxiliary armlet can detect the blood pressure of the auxiliary armlet, and the main armlet and the auxiliary armlet alternately work to detect the blood pressure;
the blood oxygen probe is connected with the arm band and is used for detecting the blood oxygen content;
the display is used for displaying the detected data, an alarm is arranged on the display, and the alarm gives an alarm when the fluctuation change of the detected blood pressure value is out of tolerance;
a control panel disposed below the display;
the storage box is arranged below the display and used for storing the arm belt and the blood oxygen probe when the arm belt is not used;
the central control system is arranged on one side of the containing box and is respectively connected with the main arm belt, the alarm, the auxiliary arm belt, the blood oxygen probe, the display and the control panel, the central control system regulates the detected blood pressure value according to the pulse data detected by the main arm belt and the blood oxygen data detected by the blood oxygen probe, a blood pressure value regulating parameter is set in the regulating process, and the value of the blood pressure value regulating parameter is determined by the difference of the blood pressure values detected by the main arm belt and the auxiliary arm belt.
Furthermore, the central control system is provided with a detection cycle period T, the main arm is used for monitoring the pulse in real time and transmitting the monitoring result to the central control system, the central control system integrates the monitored data to generate a pulse oscillation curve A = f (T), A is the pulse intensity corresponding to any time T in the single cycle period T;
the blood oxygen probe monitors the blood oxygen concentration in real time and transmits the monitoring result to the central control system, and the central control system integrates the monitored data to generate a blood oxygen concentration oscillation curve B = g (T), wherein B is the blood oxygen concentration corresponding to any moment T in a single cycle period T;
the central control system determines the actual blood pressure value according to the pulse oscillation curve A = f (t) and the blood oxygen concentration oscillation curve B = g (t).
Further, the central control system calculates a real-time blood pressure value P, P = P and is prepared
(t) dt × k × z, wherein p is the blood pressure value detected by the main arm band, z is the blood pressure value adjusting parameter, and k is the blood pressure value correcting parameter;
when the diastolic pressure and the systolic pressure are detected, the values of the blood pressure value correction parameters k are different;
the central control system selects the maximum blood pressure value in a single cycle period T as the systolic pressure and the minimum blood pressure value as the diastolic pressure.
Furthermore, a first preset blood pressure value correction parameter K1 and a second preset blood pressure value correction parameter K2 are arranged in the central control system,
when diastolic pressure is detected, the center controlThe system selects a first preset blood pressure value correction parameter K1 as a blood pressure value correction parameter K, the central control system acquires arterial blood vessel elastic retraction section data A' = f (t) from a pulse oscillation curve A = f (t), t1 is more than t and is not more than t2, wherein t1 is arterial blood vessel elastic relaxation initial time, t2 is arterial blood vessel elastic relaxation ending time, and the central control system calculates a real-time diastolic blood pressure value PShu shu=p×
g(t)dt×K1×z；
When systolic pressure is detected, the central control system selects a second preset blood pressure value correction parameter K2 as a blood pressure value correction parameter K, acquires arterial blood vessel elastic retraction section data A' = f (t) from a pulse oscillation curve A = f (t), t3 is more than t and is not more than t4, wherein t3 is arterial blood vessel contraction initial time, t4 is arterial blood vessel contraction ending time, and calculates a real-time systolic pressure value PHarvesting machine=p×
g(t)dt×K2×z。
Further, the value of the blood pressure value adjusting parameter z is determined by the brachial blood pressure.
Furthermore, the central control system controls the main arm belt and the auxiliary arm belt to alternately monitor blood pressure values, and the auxiliary arm belt blood pressure value is detected once after the blood pressure of the main arm belt is detected for three times, wherein the blood pressure value of the main arm belt is obtained after correction, and the blood pressure value of the auxiliary arm belt is directly measured by the auxiliary arm belt.
Further, the central control system records that the diastolic pressure measured by the main arm belt in a blood pressure period alternately monitored by the main arm belt and the auxiliary arm belt is PShu 1Systolic pressure of PHarvesting 1The main arm has a second measured diastolic pressure PShu 2Systolic pressure of PHarvesting 2The main arm has a third measured diastolic pressure PShu 3Systolic pressure of PHarvesting 3The diastolic pressure measured in the brachial band is PShu 4Systolic pressure of PHarvesting 4The central control system calculates a theoretical value z0 of the blood pressure value adjusting parameter,
z0= z’+[（Pshu 1+PShu 2+PShu 3）÷3- PShu 4]2-[（PHarvesting 1+PHarvesting 2+PHarvesting 3）÷3- PHarvesting 4]2
Wherein z' is a reference value of the blood pressure value adjusting parameter;
and a blood pressure value adjusting parameter evaluation value is arranged in the central control system, and the central control system compares the theoretical value of the blood pressure value adjusting parameter with the blood pressure value adjusting parameter evaluation value to determine the value of the blood pressure value adjusting parameter.
Furthermore, a first preset blood pressure value adjusting parameter evaluation value z1 and a second preset blood pressure value adjusting parameter evaluation value z2 are arranged in the central control system, the central control system compares the theoretical value z0 of the blood pressure value adjusting parameter with the first preset blood pressure value adjusting parameter evaluation value z1 and the second preset blood pressure value adjusting parameter evaluation value z2,
when z0 is not more than z1, the central control system selects the value of z1 as the value of the blood pressure value adjusting parameter;
when z1 is more than z0 and less than or equal to z2, the central control system selects a value of z0 as a value of a blood pressure value adjusting parameter;
when z0 is larger than z2, the central control system selects the value of z2 as the value of the blood pressure value adjusting parameter;
and when the detector is started for the first time, selecting z' as a blood pressure value adjusting parameter.
Furthermore, a blood pressure monitoring and contrast duration Td is arranged in the central control system, and the central control system records the detected diastolic pressure as PShu shuSystolic pressure of PHarvesting machineAnd timing, and recording the detected diastolic pressure as P by the central control system when the blood pressure monitoring contrast time Td passesShu shu', systolic pressure PHarvesting machine', the central control system calculates the blood pressure fluctuation value Pb, Pb = (P)Shu shu- PShu shu’）2×b1+（PHarvesting machine- PHarvesting machine’）2X b2, wherein b1 is the calculated weight parameter of diastolic blood pressure to fluctuation value of blood pressure, b2 is the calculated weight parameter of systolic blood pressure to fluctuation value of blood pressure,
a blood pressure fluctuation evaluation value R is arranged in the central control system, the central control system compares the blood pressure fluctuation value Pb with the blood pressure fluctuation evaluation value R,
when Pb is less than or equal to R, the central control system judges that the blood pressure fluctuation is stable;
when Pb is larger than R, the central control system judges that the blood pressure fluctuation is strong, and controls the alarm to give an alarm.
Further, the value of the evaluation value R of the blood pressure fluctuation is determined by the systolic pressure PHarvesting machineIt is determined that,
a first systolic pressure evaluation parameter S1, a second systolic pressure evaluation parameter S2, a first preset blood pressure fluctuation evaluation value R1, a second preset blood pressure fluctuation evaluation value R2 and a third preset blood pressure fluctuation evaluation value R3 are arranged in the central control system, and the central control system evaluates the systolic pressure PHarvesting machineCompared with the first systolic blood pressure evaluation parameter S1, the second systolic blood pressure evaluation parameter S2,
when P is presentHarvesting machineWhen the blood pressure fluctuation evaluation value is less than or equal to S1, the central control system selects a first preset blood pressure fluctuation evaluation value R1 as a blood pressure fluctuation evaluation value R;
when S1 < PHarvesting machineWhen the blood pressure fluctuation evaluation value is less than or equal to S2, the central control system selects a second preset blood pressure fluctuation evaluation value R2 as a blood pressure fluctuation evaluation value R;
when P is presentHarvesting machineAnd when the evaluation value is more than S1, the central control system selects a third preset blood pressure fluctuation evaluation value R3 as a blood pressure fluctuation evaluation value R.
Compared with the prior art, the invention has the advantages that when the blood pressure value is detected, the detected blood pressure value is adjusted according to the fluctuation data of the pulse and the fluctuation of the blood oxygen concentration, so that the displayed blood pressure value is more accurate, meanwhile, the main arm belt and the auxiliary arm belt alternately work to detect the blood pressure, a blood pressure value adjusting parameter is arranged in the adjusting process, the value of the blood pressure value adjusting parameter is determined by the difference of the detected blood pressure values of the main arm belt and the auxiliary arm belt, the blood pressure values of the left arm and the right arm are periodically detected, the actual blood pressure value is adjusted according to the detected difference, so that the displayed blood pressure value is more accurate, and the individual adaptability of the blood pressure detection is improved.
Further, the central control system is provided with a detection cycle period T, the main arm is provided with a real-time pulse monitoring function and transmits a monitoring result to the central control system, the central control system integrates the monitored data to generate a pulse oscillation curve A = f (T), the blood oxygen probe monitors the blood oxygen concentration in real time and transmits the monitoring result to the central control system, the central control system integrates the monitored data to generate a blood oxygen concentration oscillation curve B = g (T), and the central control system determines an actual blood pressure value according to the pulse oscillation curve A = f (T) and the blood oxygen concentration oscillation curve B = g (T). In the monitoring process, the pulse and the blood oxygen concentration are recorded, a corresponding oscillation curve is generated according to the recorded result, the blood pressure value is adjusted and displayed in real time according to the oscillation curve, the individual adaptability of blood pressure detection is enhanced, and the output and displayed blood pressure value is more accurate.
Further, the central control system calculates a real-time blood pressure value P, P = P and is prepared
(t) dt × k × z, wherein p is the blood pressure value detected by the main arm band, z is the blood pressure value adjusting parameter, and k is the blood pressure value correcting parameter; when the diastolic pressure and the systolic pressure are detected, the values of the blood pressure value correction parameters k are different, and different calculation parameters are adopted for the systolic pressure and the diastolic pressure during blood pressure detection, so that the calculation result is accurate, and the output and displayed blood pressure value is more accurate.
Further, the value of the blood pressure value adjusting parameter z is determined by the brachial blood pressure. The central control system controls the main arm belt and the auxiliary arm belt to alternately monitor blood pressure values, the auxiliary arm belt blood pressure value is detected once after the blood pressure of the main arm belt is detected for three times, wherein the blood pressure value of the main arm belt is obtained after correction, and the blood pressure value of the auxiliary arm belt is directly measured by the auxiliary arm belt. The central control system records that the diastolic pressure measured by the main arm belt in a period that the main arm belt and the auxiliary arm belt alternately monitor the blood pressure is PShu 1Systolic pressure of PHarvesting 1The main arm has a second measured diastolic pressure PShu 2Systolic pressure of PHarvesting 2The main arm has a third measured diastolic pressure PShu 3Systolic pressure of PHarvesting 3The diastolic pressure measured in the brachial band is PShu 4Systolic pressure of PHarvesting 4The central control system calculates a theoretical value z0 of a blood pressure value adjusting parameter, periodically detects the blood pressure values of the left arm and the right arm, andthe actual blood pressure value is adjusted according to the detected difference value, so that the output and displayed blood pressure value is more accurate, and the individual adaptability of blood pressure detection is improved.
Furthermore, a first preset blood pressure value adjusting parameter evaluation value z1 and a second preset blood pressure value adjusting parameter evaluation value z2 are arranged in the central control system, the central control system compares the blood pressure value adjusting parameter theoretical value z0 with the first preset blood pressure value adjusting parameter evaluation value z1 and the second preset blood pressure value adjusting parameter evaluation value z2, and by setting the blood pressure value adjusting parameter evaluation values, the phenomenon that the theoretical value of the blood pressure value adjusting parameter is too large or too small to affect the output result is prevented, so that the displayed blood pressure value is more accurate.
Furthermore, a blood pressure monitoring and contrast duration Td is arranged in the central control system, and the central control system records the detected diastolic pressure as PShu shuSystolic pressure of PHarvesting machineAnd timing, and recording the detected diastolic pressure as P by the central control system when the blood pressure monitoring contrast time Td passesShu shu', systolic pressure PHarvesting machineThe central control system calculates a blood pressure fluctuation value Pb, a blood pressure fluctuation evaluation value R is arranged in the central control system, the central control system compares the blood pressure fluctuation value Pb with the blood pressure fluctuation evaluation value R, in the actual blood pressure monitoring process, the numerical values of the first time and the second time are possibly in a normal range, but the change relation between the first time and the second time is abnormal, the blood pressure change trend is determined in advance by detecting the blood pressure fluctuation condition in the comparison duration and comparing the fluctuation evaluation value with the blood pressure fluctuation value, the detection and early warning are achieved in advance, and the safety of monitored personnel is improved.
In particular, the value of the evaluation value R of the blood pressure fluctuation is determined by the systolic pressure PHarvesting machineDetermining that a first systolic pressure evaluation parameter S1, a second systolic pressure evaluation parameter S2, a first preset blood pressure fluctuation evaluation value R1, a second preset blood pressure fluctuation evaluation value R2 and a third preset blood pressure fluctuation evaluation value R3 are arranged in the central control system, and the central control system controls systolic pressure PHarvesting machineDifferent blood pressure waves are set for different systolic pressures in comparison with the first systolic pressure evaluation parameter S1 and the second systolic pressure evaluation parameter S2And the dynamic evaluation value increases the individual adaptability of blood pressure monitoring, so that the safety guarantee of monitored personnel is further improved.
Drawings
FIG. 1 is a schematic view of a blood pressure monitor for cardiovascular medicine according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to 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.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, which is a schematic structural diagram of a blood pressure monitor for cardiovascular medicine according to the present invention, the present invention provides a blood pressure monitor for cardiovascular medicine, comprising,
the armlet comprises a main armlet 1 and an auxiliary armlet 2, wherein the main armlet 1 can detect the blood pressure and pulse of a main arm, the auxiliary armlet 2 can detect the blood pressure of an auxiliary arm, and the main armlet 1 and the auxiliary armlet 2 alternately work to detect the blood pressure;
a blood oxygen probe 3 connected with the arm band and used for detecting the blood oxygen content;
the display 4 is used for displaying the detected data, the display 4 is provided with an alarm 8, and when the fluctuation change of the detected blood pressure value is out of tolerance, the alarm 8 gives an alarm;
a control panel 5 disposed below the display 4;
a storage box 6 arranged below the display 4 for storing the arm belt and the blood oxygen probe 3 when the arm belt is not used;
the central control system 7 is arranged on one side of the storage box 6 and is respectively connected with the main arm belt 1, the alarm 8, the auxiliary arm belt 2, the blood oxygen probe 3, the display 4 and the control panel 5, the central control system 7 adjusts the detected blood pressure value according to the pulse data detected by the main arm belt 1 and the blood oxygen data detected by the blood oxygen probe 3, a blood pressure value adjusting parameter is arranged in the adjusting process, and the value of the blood pressure value adjusting parameter is determined by the difference of the blood pressure values detected by the main arm belt 1 and the auxiliary arm belt 2.
When the blood pressure monitor applied to the cardiovascular medicine is used for blood pressure detection, the main arm band 1 is tied to the arm close to the heart, the auxiliary arm band 2 is tied to the arm far away from the heart, and the blood oxygen probe 3 is clamped to the index finger or the middle finger on one side of the arm close to the heart.
When the blood pressure value is detected, the detected blood pressure value is adjusted according to the fluctuation data of the pulse and the fluctuation of the blood oxygen concentration, so that the displayed blood pressure value is more accurate, meanwhile, the main arm belt 1 and the auxiliary arm belt 2 alternately work to detect the blood pressure, a blood pressure value adjusting parameter is arranged in the adjusting process, the value of the blood pressure value adjusting parameter is determined by the difference of the blood pressure values detected by the main arm belt 1 and the auxiliary arm belt 2, the blood pressure values of the left and right arms are periodically detected, the actual blood pressure value is adjusted according to the detected difference value, the displayed blood pressure value is more accurate, and the individual adaptability of the blood pressure detection is improved.
Specifically, the central control system 7 is provided with a detection cycle period T, the forearm band 1 monitors the pulse in real time and transmits the monitoring result to the central control system 7, and the central control system 7 integrates the monitored data to generate a pulse oscillation curve a = f (T), where a is the pulse intensity corresponding to any time T in the single cycle period T;
the blood oxygen probe 3 monitors the blood oxygen concentration in real time and transmits the monitoring result to the central control system 7, the central control system 7 integrates the monitored data to generate a blood oxygen concentration oscillation curve B = g (T), wherein B is the blood oxygen concentration corresponding to any moment T in a single cycle period T;
the central control system 7 determines the actual blood pressure value according to the pulse oscillation curve a = f (t) and the blood oxygen concentration oscillation curve B = g (t).
In the monitoring process, the pulse and the blood oxygen concentration are recorded, a corresponding oscillation curve is generated according to the recorded result, the blood pressure value is adjusted and displayed in real time according to the oscillation curve, the individual adaptability of blood pressure detection is enhanced, and the output and displayed blood pressure value is more accurate.
Specifically, the central control system 7 calculates a real-time blood pressure value P, P = P |)
(t) dt × k × z, wherein p is the blood pressure value detected by the brachial region 1, z is the blood pressure value adjusting parameter, and k is the blood pressure value correcting parameter;
when the diastolic pressure and the systolic pressure are detected, the values of the blood pressure value correction parameters k are different;
the central control system 7 selects the maximum blood pressure value in a single cycle period T as the systolic pressure and the minimum blood pressure value as the diastolic pressure.
Specifically, the central control system 7 is provided with a first preset blood pressure value correction parameter K1, a second preset blood pressure value correction parameter K2,
when diastolic pressure is detected, the central control system 7 selects a first preset blood pressure value correction parameter K1 as a blood pressure value correction parameter K, and the central control system 7 acquires an artery from a pulse oscillation curve A = f (t)The elastic vessel retraction section data A' = f (t), t is greater than t1 and is not more than t2, wherein t1 is the initial time of the elastic relaxation of the arterial vessel, t2 is the end time of the elastic relaxation of the arterial vessel, and the central control system 7 calculates the real-time diastolic blood pressure value PShu shu=p×
g(t)dt×K1×z；
When systolic pressure is detected, the central control system 7 selects a second preset blood pressure value correction parameter K2 as a blood pressure value correction parameter K, the central control system 7 acquires arterial blood vessel elastic retraction section data A "= f (t) from a pulse oscillation curve A = f (t), t3 is more than t and is less than or equal to t4, wherein t3 is arterial blood vessel contraction initial time, t4 is arterial blood vessel contraction ending time, and the central control system 7 calculates a real-time systolic pressure value PHarvesting machine=p×
g(t)dt×K2×z。
When the blood pressure is detected, different calculation parameters are adopted for the systolic pressure and the diastolic pressure, so that the calculation result is accurate, and the output and displayed blood pressure value is more accurate.
Specifically, the value of the blood pressure value adjusting parameter z is determined by the brachial blood pressure.
Specifically, the central control system 7 controls the main arm strap 1 and the auxiliary arm strap 2 to alternately monitor blood pressure values, and detects the blood pressure value of the auxiliary arm strap 2 once after detecting the blood pressure of the main arm strap 1 for three times, wherein the blood pressure value of the main arm strap 1 is obtained after correction, and the blood pressure value of the auxiliary arm strap 2 is directly measured by the auxiliary arm strap 2.
Specifically, the central control system 7 records the diastolic pressure P measured by the main arm belt 1 for the first time in a blood pressure period alternately monitored by the main arm belt 1 and the auxiliary arm belt 2Shu 1Systolic pressure of PHarvesting 1The second measured diastolic pressure of the forearm strap 1 is PShu 2Systolic pressure of PHarvesting 2The third measured diastolic pressure of the forearm strap 1 is PShu 3Systolic pressure of PHarvesting 3The diastolic pressure measured in the brachial band 2 is PShu 4Systolic pressure of PHarvesting 4The central control system 7 calculates the theoretical value z0 of the blood pressure value adjusting parameter,
z0= z’+[（Pshu 1+PShu 2+PShu 3）÷3- PShu 4]2-[（PHarvesting 1+PHarvesting 2+PHarvesting 3）÷3- PHarvesting 4]2
Wherein z' is a reference value of the blood pressure value adjusting parameter;
a blood pressure value adjusting parameter evaluation value is arranged in the central control system 7, and the central control system 7 compares the blood pressure value adjusting parameter theoretical value with the blood pressure value adjusting parameter evaluation value to determine a blood pressure value adjusting parameter value.
The blood pressure values of the left arm and the right arm are periodically detected, and the actual blood pressure value is adjusted according to the detected difference value, so that the output and displayed blood pressure value is more accurate, and the individual adaptability of blood pressure detection is improved.
Specifically, a first preset blood pressure value adjusting parameter evaluation value z1 and a second preset blood pressure value adjusting parameter evaluation value z2 are arranged in the central control system 7, the central control system 7 compares the theoretical blood pressure value adjusting parameter value z0 with the first preset blood pressure value adjusting parameter evaluation value z1 and the second preset blood pressure value adjusting parameter evaluation value z2,
when z0 is not more than z1, the central control system 7 selects the value of z1 as the value of the blood pressure value adjusting parameter;
when z1 is more than z0 and less than or equal to z2, the central control system 7 selects a value of z0 as a blood pressure value adjusting parameter value;
when z0 is more than z2, the central control system 7 selects the value of z2 as the value of the blood pressure value adjusting parameter;
and when the detector is started for the first time, selecting z' as a blood pressure value adjusting parameter.
By setting the evaluation value of the blood pressure value adjusting parameter, the phenomenon that the theoretical value of the blood pressure value adjusting parameter is too large and too small to influence the output result is prevented, so that the displayed blood pressure value is more accurate.
Specifically, a blood pressure monitoring and contrast time Td is arranged in the central control system 7, and the central control system 7 records the detected diastolic pressure as PShu shuSystolic pressure of PHarvesting machineAnd timing when the blood pressure monitoring contrast time Td passesThe central control system 7 records the detected diastolic pressure as PShu shu', systolic pressure PHarvesting machine', the central control system 7 calculates the blood pressure fluctuation value Pb, Pb = (P)Shu shu- PShu shu’）2×b1+（PHarvesting machine- PHarvesting machine’）2X b2, wherein b1 is the calculated weight parameter of diastolic blood pressure to fluctuation value of blood pressure, b2 is the calculated weight parameter of systolic blood pressure to fluctuation value of blood pressure,
a blood pressure fluctuation evaluation value R is arranged in the central control system 7, the central control system 7 compares the blood pressure fluctuation value Pb with the blood pressure fluctuation evaluation value R,
when Pb is less than or equal to R, the central control system 7 judges that the blood pressure fluctuation is stable;
when Pb is larger than R, the central control system 7 judges that the blood pressure fluctuation is strong, and the central control system 7 controls the alarm 8 to give an alarm.
In the actual blood pressure monitoring process, the numerical values of the first time and the second time are possibly in a normal range, but the change relation between the first time and the second time is abnormal, the blood pressure change trend is determined in advance by detecting the blood pressure fluctuation condition in the comparison duration and comparing the fluctuation evaluation value with the blood pressure fluctuation value, the detection early warning is achieved in advance, and the safety of monitored personnel is improved.
Specifically, the blood pressure fluctuation evaluation value R is defined by the systolic pressure PHarvesting machineIt is determined that,
a first systolic pressure evaluation parameter S1, a second systolic pressure evaluation parameter S2, a first preset blood pressure fluctuation evaluation value R1, a second preset blood pressure fluctuation evaluation value R2 and a third preset blood pressure fluctuation evaluation value R3 are arranged in the central control system 7, and the systolic pressure P is evaluated by the central control system 7Harvesting machineCompared with the first systolic blood pressure evaluation parameter S1, the second systolic blood pressure evaluation parameter S2,
when P is presentHarvesting machineWhen the blood pressure fluctuation evaluation value is less than or equal to S1, the central control system 7 selects a first preset blood pressure fluctuation evaluation value R1 as a blood pressure fluctuation evaluation value R;
when S1 < PHarvesting machineWhen the blood pressure fluctuation evaluation value is less than or equal to S2, the central control system 7 selects a second preset blood pressure fluctuation evaluation value R2 as a blood pressure fluctuation evaluation value R;
when P is presentHarvesting machineAnd if the evaluation value is more than S1, the central control system 7 selects a third preset blood pressure fluctuation evaluation value R3 as the blood pressure fluctuation evaluation value R.
Different blood pressure fluctuation evaluation values are set for different systolic pressures, the individual adaptability of blood pressure monitoring is improved, and the safety guarantee of monitored personnel is further improved.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (9)
1. A blood pressure monitor applied to cardiovascular medicine is characterized by comprising,
the armlet comprises a main armlet and an auxiliary armlet, wherein the main armlet can detect the blood pressure and pulse of the main armlet, the auxiliary armlet can detect the blood pressure of the auxiliary armlet, and the main armlet and the auxiliary armlet alternately work to detect the blood pressure;
the blood oxygen probe is connected with the arm band and is used for detecting the blood oxygen content;
the display is used for displaying the detected data, an alarm is arranged on the display, and the alarm gives an alarm when the fluctuation change of the detected blood pressure value is out of tolerance;
a control panel disposed below the display;
the storage box is arranged below the display and used for storing the arm belt and the blood oxygen probe when the arm belt is not used;
the central control system is arranged on one side of the containing box and is respectively connected with the main arm belt, the alarm, the auxiliary arm belt, the blood oxygen probe, the display and the control panel, the central control system regulates the blood pressure value detected by the main arm belt according to the pulse data detected by the main arm belt and the blood oxygen data detected by the blood oxygen probe, a blood pressure value regulating parameter is set in the regulating process, and the numerical value of the blood pressure value regulating parameter is determined by the difference of the blood pressure values detected by the main arm belt and the auxiliary arm belt;
the central control system records that the diastolic pressure measured by the main arm belt in a period that the main arm belt and the auxiliary arm belt alternately monitor the blood pressure is PShu 1Systolic pressure of PHarvesting 1The main arm has a second measured diastolic pressure PShu 2Systolic pressure of PHarvesting 2The main arm has a third measured diastolic pressure PShu 3Systolic pressure of PHarvesting 3The diastolic pressure measured in the brachial band is PShu 4Systolic pressure of PHarvesting 4The central control system calculates a theoretical value z0 of the blood pressure value adjusting parameter,
z0= z’+[（Pshu 1+PShu 2+PShu 3）÷3- PShu 4]2-[（PHarvesting 1+PHarvesting 2+PHarvesting 3）÷3- PHarvesting 4]2
Wherein z' is a reference value of the blood pressure value adjusting parameter;
and a blood pressure value adjusting parameter evaluation value is arranged in the central control system, and the central control system compares the theoretical value of the blood pressure value adjusting parameter with the blood pressure value adjusting parameter evaluation value to determine the value of the blood pressure value adjusting parameter.
2. The blood pressure monitor as claimed in claim 1, wherein the central control system is provided with a detection cycle T, the main arm is used for monitoring the pulse in real time and transmitting the monitoring result to the central control system, and the central control system integrates the monitored data to generate a pulse oscillation curve a = f (T), wherein a is the pulse intensity corresponding to any time T in the single cycle T;
the blood oxygen probe monitors the blood oxygen concentration in real time and transmits the monitoring result to the central control system, and the central control system integrates the monitored data to generate a blood oxygen concentration oscillation curve B = g (T), wherein B is the blood oxygen concentration corresponding to any moment T in a single cycle period T;
the central control system determines the actual blood pressure value according to the pulse oscillation curve A = f (t) and the blood oxygen concentration oscillation curve B = g (t).
3. The blood pressure monitor as claimed in claim 2, wherein the central control system calculates the real-time blood pressure value P, P = P |)
(t) dt × k × z, wherein p is the blood pressure value detected by the main arm band, z is the blood pressure value adjusting parameter, and k is the blood pressure value correcting parameter;
when the diastolic pressure and the systolic pressure are detected, the values of the blood pressure value correction parameters k are different;
the central control system selects the maximum blood pressure value in a single cycle period T as the systolic pressure and the minimum blood pressure value as the diastolic pressure.
4. The blood pressure monitor as claimed in claim 3, wherein the central control system has a first predetermined blood pressure value correction parameter K1, a second predetermined blood pressure value correction parameter K2,
when diastolic pressure is detected, the central control system selects a first preset blood pressure value correction parameter K1 as a blood pressure value correction parameter K, acquires arterial blood vessel elastic retraction section data A' = f (t) from a pulse oscillation curve A = f (t), t1 is more than t and is not more than t2, wherein t1 is arterial blood vessel elastic relaxation initial time, t2 is arterial blood vessel elastic relaxation ending time, and calculates a real-time diastolic pressure value PShu shu=p×
g(t)dt×K1×z；
When systolic pressure is detected, the central control system selects a second preset blood pressure value correction parameter K2 as a blood pressure value correction parameter K, acquires arterial blood vessel elastic retraction section data A' = f (t) from a pulse oscillation curve A = f (t), t3 is more than t and is not more than t4, wherein t3 is arterial blood vessel contraction initial time, t4 is arterial blood vessel contraction ending time, and calculates a real-time systolic pressure value PHarvesting machine=p×
g(t)dt×K2×z。
5. The cardiovascular blood pressure monitor of claim 4, wherein the value of the blood pressure value adjustment parameter z is determined by the brachial blood pressure.
6. The blood pressure monitor for cardiovascular department according to claim 5, wherein the central control system controls the forearm strap and the auxiliary arm strap to monitor the blood pressure value alternately, the blood pressure value of the auxiliary arm strap is detected after every three blood pressures of the forearm strap are detected, wherein the blood pressure value of the forearm strap is obtained after correction, and the blood pressure value of the auxiliary arm strap is directly measured by the auxiliary arm strap.
7. The blood pressure monitor as claimed in claim 1, wherein a first preset blood pressure value adjusting parameter evaluation value z1 and a second preset blood pressure value adjusting parameter evaluation value z2 are provided in the central control system, the central control system compares the theoretical blood pressure value adjusting parameter z0 with the first preset blood pressure value adjusting parameter evaluation value z1 and the second preset blood pressure value adjusting parameter evaluation value z2,
when z0 is not more than z1, the central control system selects the value of z1 as the value of the blood pressure value adjusting parameter;
when z1 is more than z0 and less than or equal to z2, the central control system selects a value of z0 as a value of a blood pressure value adjusting parameter;
when z0 is larger than z2, the central control system selects the value of z2 as the value of the blood pressure value adjusting parameter;
and when the detector is started for the first time, selecting z' as a blood pressure value adjusting parameter.
8. The blood pressure monitor as claimed in claim 3, wherein the central control system has a blood pressure monitoring contrast time Td, and records the detected diastolic blood pressure as PShu shuSystolic pressure of PHarvesting machineAnd timing, and when the blood pressure monitoring contrast time Td passes, the central control unitThe system records the detected diastolic pressure as PShu shu', systolic pressure PHarvesting machine', the central control system calculates the blood pressure fluctuation value Pb, Pb = (P)Shu shu- PShu shu’）2×b1+（PHarvesting machine- PHarvesting machine’）2X b2, wherein b1 is the calculated weight parameter of diastolic blood pressure to fluctuation value of blood pressure, b2 is the calculated weight parameter of systolic blood pressure to fluctuation value of blood pressure,
a blood pressure fluctuation evaluation value R is arranged in the central control system, the central control system compares the blood pressure fluctuation value Pb with the blood pressure fluctuation evaluation value R,
when Pb is less than or equal to R, the central control system judges that the blood pressure fluctuation is stable;
when Pb is larger than R, the central control system judges that the blood pressure fluctuation is strong, and controls the alarm to give an alarm.
9. The cardiovascular blood pressure monitor of claim 8, wherein the evaluation value of the fluctuation of blood pressure R is determined by the systolic pressure PHarvesting machineIt is determined that,
a first systolic pressure evaluation parameter S1, a second systolic pressure evaluation parameter S2, a first preset blood pressure fluctuation evaluation value R1, a second preset blood pressure fluctuation evaluation value R2 and a third preset blood pressure fluctuation evaluation value R3 are arranged in the central control system, and the central control system evaluates the systolic pressure PHarvesting machineCompared with the first systolic blood pressure evaluation parameter S1, the second systolic blood pressure evaluation parameter S2,
when P is presentHarvesting machineWhen the blood pressure fluctuation evaluation value is less than or equal to S1, the central control system selects a first preset blood pressure fluctuation evaluation value R1 as a blood pressure fluctuation evaluation value R;
when S1 < PHarvesting machineWhen the blood pressure fluctuation evaluation value is less than or equal to S2, the central control system selects a second preset blood pressure fluctuation evaluation value R2 as a blood pressure fluctuation evaluation value R;
when P is presentHarvesting machineAnd when the evaluation value is more than S2, the central control system selects a third preset blood pressure fluctuation evaluation value R3 as a blood pressure fluctuation evaluation value R.
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