CN219126336U

CN219126336U - Non-inductive 24-hour dynamic blood pressure meter based on pulse wave phase difference

Info

Publication number: CN219126336U
Application number: CN202223333971.7U
Authority: CN
Inventors: 匡泽民; 王佳洁; 李毅彬; 魏耀广
Original assignee: Beijing Anzhen Hospital
Current assignee: Beijing Anzhen Hospital
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-06
Anticipated expiration: 2032-12-12

Abstract

The utility model provides a non-inductive 24-hour dynamic blood pressure meter based on pulse wave phase difference, which comprises an arm belt capable of being bound around an arm, wherein a first fastener and a second fastener which can be fixed on the arm are respectively arranged at two end parts of the arm belt, and a photoelectric sensor and a pressure sensor are arranged at the inner side of the arm belt; the arm band is also provided with a collector, wherein a power module for supplying power to the photoelectric sensor and the pressure sensor, a data processing module for receiving and processing the electric signals of the photoelectric sensor and the pressure sensor, and a storage module for storing the data processed by the data processing module are arranged in the collector. The photoelectric sensor is adopted to ensure that the measurement process is noninductive, and the arm belt does not expand, so that the wearing comfort at night can be improved. Improving the sleeping quality of the patient and further enabling the blood pressure measurement data to be more accurate.

Description

Non-inductive 24-hour dynamic blood pressure meter based on pulse wave phase difference

Technical Field

The utility model relates to the field of medical equipment, in particular to a noninductive 24-hour dynamic blood pressure meter based on pulse wave phase difference.

Background

Hypertension is a major risk factor for cardiovascular and cerebrovascular diseases, and accurate blood pressure measurement is critical for diagnosing and treating hypertension. Laboratory blood pressure measurements are the standard method of clinical diagnosis and the main basis for hypertension stratification, but there are many disadvantages to relying on laboratory blood pressure alone. Room blood pressure generally refers to the blood pressure value of the upper brachial artery of a patient, which is measured by a blood pressure meter, which can only provide a blood pressure level at one point in time, performed by a physician, nurse or technician in a room or hospital. The blood pressure of a consulting room is influenced by a plurality of factors such as measurement technical errors, instrument loss, environmental changes, emotion and the like, so that a measurement result is deviated (higher or lower) from a real blood pressure rule, and misdiagnosis or missed diagnosis of the hypertension is often caused; meanwhile, the blood pressure measurement in the consulting room has too few measurement times, can not reflect the blood pressure condition at night, and has the limitations of observation errors, white overcoat effect and the like.

To better diagnose hypertension, objective continuous 24-hour multiple blood pressure measurements were obtained, and dynamic blood pressure monitoring (ambulatory blood pressure monitoring, ABPM) techniques have evolved. Moreover, with the deep understanding of specific types of hypertension such as "white coat hypertension, latent hypertension, early morning hypertension and night hypertension", blood pressure measurement in a consulting room and even a home self-test blood pressure mode cannot provide real and reliable data, and only the specific types of hypertension can be accurately identified by means of ABPM. ABPM can be used for screening and finding hypertension, judging the severity of hypertension, determining the type of hypertension and evaluating the curative effect of antihypertensive drugs; and according to the conditions of providing high peak, low valley and the like of blood pressure by the ABPM, proper antihypertensive drugs, dosage forms and taking time are selected according to the guidelines of time therapeutics, and an individualized taking scheme is formulated. In addition, ABPM makes up for the deficiency such as even measurement blood pressure observation error, measurement number of times are few, does not have "white overcoat" effect and "placebo" effect, can diagnose "white overcoat" hypertension and "hidden hypertension". ABPM is also superior to office blood pressure measurements in predicting the incidence and mortality of cardiovascular disease. It can be said that ABPM has become an indispensable examination means and instrument for clinicians, providing a more reliable means for diagnosis and treatment of hypertension.

However, the existing ABPM measurement method is to let the patient wear a dynamic blood pressure recorder and return to free movement in the daily living environment, and the instrument can automatically perform inflation measurement on blood pressure at set time intervals (generally 15-20 min in daytime and 20-30 min at night), provide blood pressure measurement data up to tens to hundreds times in 24 hours, and provide valuable information for solving the fluctuation level and trend of the blood pressure of the patient throughout the day. The most outstanding feature is that it has multiple blood pressure measurement, and compared with the conventional blood pressure of consulting room, it can objectively reflect the actual blood pressure level of each period of 24 hours, and can accurately evaluate the actual blood pressure level of a hypertensive patient. As a mature used dynamic blood pressure monitor of the traditional brachial artery oscillography, the average arterial pressure can be accurately measured, the systolic pressure, the diastolic pressure and related blood pressure parameters are obtained through an algorithm, the dynamic blood pressure monitor has the characteristics of high accuracy, large information quantity and good repeatability, can objectively reflect the actual level and fluctuation condition of 24-hour blood pressure, is widely applied to clinical diagnosis and treatment, and provides great help for diagnosis and treatment of hypertension.

However, the dynamic blood pressure meter generally adopts an oscillometric method to measure blood pressure, and has the biggest problem that the cuff is repeatedly pressurized and expanded during night monitoring to generate strong touch feeling on the arm, so that 70% of patients feel awake or cannot fall asleep during night sleep, and further, the measured value is higher, and the accuracy assessment and judgment of the blood pressure level and rhythm of the patients at night are seriously affected. In view of this, a non-inductive 24-hour dynamic blood pressure monitor based on pulse wave phase differences is proposed.

Disclosure of Invention

The utility model aims to solve the technical problems that: when the ABPM method is adopted to measure the blood pressure process and the existing dynamic blood pressure instrument is used for monitoring, the sleeve belt is repeatedly pressurized and expanded, so that the experience is poor and the sleeping of a user is affected.

The technical scheme adopted for solving the technical problems is as follows:

the non-inductive 24-hour dynamic blood pressure meter based on pulse wave phase difference comprises an armband capable of being bound around an arm, wherein a first fastener and a second fastener which can be fixed on the arm are respectively arranged at two end parts of the armband, and a photoelectric sensor and a pressure sensor are arranged at the inner side of the armband 1; the arm band is also provided with a collector, wherein a power module for supplying power to the photoelectric sensor and the pressure sensor, a data processing module for receiving and processing the electric signals of the photoelectric sensor and the pressure sensor, and a storage module for storing the data processed by the data processing module are arranged in the collector.

Preferably, the pressure sensors are respectively arranged at two sides of the photoelectric sensor.

Preferably, a transparent plastic soft board is arranged at the center of the arm belt, and the photoelectric sensor is arranged on the transparent plastic soft board.

Preferably, the collector further comprises a wireless communication module, which is in communication connection with the data processing module.

Preferably, the wireless communication module is a bluetooth communication module or a WIFI communication module.

Preferably, the collector is disposed outside the arm band.

Preferably, the collector further comprises a display module.

The beneficial effects of the utility model are as follows: the photoelectric sensor is arranged on the inner side of the armband, the pulse is measured by adopting a photoelectric volume pulse wave tracing measurement mode, the pressure pulse wave can be measured by the pressure sensor arranged on the inner side of the armband, further, the characteristic points and the phase difference of the photoelectric pulse wave and the pressure pulse wave are calculated by a pulse wave analysis algorithm, the blood pressure measured value can be continuously obtained, the measurement of the blood pressure in each period of 24 hours can be implemented, continuous parameter values are provided for clinical blood pressure diagnosis, and the measurement data are acquired by the acquisition device, so that a doctor can make diagnosis by utilizing the acquired data.

In addition, the pressure sensor is arranged on the inner side of the armband, so that the binding force of the armband can be fed back, and the photoelectric sensor can be ensured to be in crimping connection with the brachial artery with proper force. The photoelectric sensor is adopted to ensure that the measurement process is noninductive, and the arm belt does not expand, so that the wearing comfort at night can be improved. Improving the sleeping quality of the patient and further enabling the blood pressure measurement data to be more accurate.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the use state of a non-inductive 24-hour dynamic blood pressure monitor according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the flattened structure of FIG. 1;

FIG. 3 is a schematic view of the inside view structure of FIG. 1;

FIG. 4 is a schematic view of the flattened structure of FIG. 3;

FIG. 5 is a schematic diagram of an electronic control structure of a non-inductive 24-hour dynamic blood pressure meter according to an embodiment of the present utility model;

in the figure: 1-armband, 1.1-first fastener, 1.2-second fastener, 2-transparent plate, 3-collector, 4-photoelectric sensor, 5-pressure sensor,

Detailed Description

The above-described aspects are further described below in conjunction with specific embodiments. It is to be understood that these examples are illustrative of the utility model and are not intended to limit the scope of the utility model. The implementation conditions used in the examples may be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are generally those in routine experiments.

In a specific embodiment, a pulse wave phase difference-based noninductive 24-hour dynamic blood pressure monitor is provided, which comprises an armband 1 capable of being bound around an arm part, wherein the armband 1 is usually made of breathable fabric, a first fastener 1.1 and a second fastener 1.2 capable of being fixed on the arm part are respectively arranged at two end parts of the armband 1, in the embodiment, the first fastener 1.1 and the second fastener 1.2 can be magic tapes, and hook surfaces and hair surfaces are correspondingly arranged at two ends of the armband 1; in addition, the arm belt can also be a snap fastener, the pressing end and the buckling end are respectively correspondingly arranged at two ends of the arm belt 1, wherein, the pressing end and the buckling end can be arranged in a plurality of groups so as to be suitable for different buckling positions and be suitable for patients with different arm thicknesses. To achieve a continuous 24 hour non-inductive measurement of blood pressure parameters, i.e. the cuff 1 is not contracted to be able to measure blood pressure. In this embodiment, the photoelectric sensor 4 is used to measure the pulse by using a photoplethysmography measurement method corresponding to the brachial artery of the arm. The photoplethysmography (PPG) uses a probe composed of a light source and a photoelectric receiver to contact with skin, and the emitted light beam will be reflected, absorbed and scattered by skin tissue and blood, and the photoelectric receiver receives the photoelectric signal and converts the photoelectric signal into an electric signal, so as to reflect the pulsation condition of the volume pulse wave.

The specific structure in this embodiment is as follows:

a photoelectric sensor 4 and a pressure sensor 5 are arranged on the inner side of the arm belt 1; the binding force of the armband 1 can be fed back through the pressure sensor 5, so that the photoelectric sensor 4 can be ensured to be in crimping connection with the brachial artery with proper force, and overpressure or floating pressure is avoided. The wearing accuracy is improved, and the measuring accuracy is further improved. As a preferable scheme of the arrangement of the pressure sensors 5 in the present embodiment, two pressure sensors 5 may be adopted and respectively disposed on two sides of the photoelectric sensor 4, and when the pressure sensor is worn, the two pressure sensors 5 generally feed back pressure at the same time, so that the photoelectric sensor 4 in the middle position can be more accurately crimped on the brachial artery.

In addition, in order to realize the collection of the measurement number, a collector 3 is further arranged on the armband 1, wherein a power module for supplying power to the photoelectric sensor 4 and the pressure sensor 5 and a data processing module for receiving and processing the electric signals of the photoelectric sensor 4 and the pressure sensor 5 are arranged in the collector 3, in this embodiment, the data processing module mainly can convert the analog signals measured by the electric sensor 4 and the pressure sensor 5 into digital information, and the digital information is stored by a storage module so as to be convenient for a doctor to call and check. As a preferable aspect in this embodiment, the collector 3 is disposed outside the arm band 1. This facilitates charging and information acquisition of the collector 3. And a display module, namely a display screen, is arranged on the collector 3, so that the measurement data information can be conveniently checked. Therefore, the photoelectric sensor 4 is arranged on the inner side of the armband 1 and measures the pulse by adopting a photoplethysmography measurement mode, in addition, the pressure sensor 5 arranged on the inner side of the armband 1 can be used for measuring the pressure pulse wave, further, the characteristic points and the phase difference of the photoelectric pulse wave and the pressure pulse wave can be calculated through a pulse wave analysis algorithm, the blood pressure measurement value can be continuously obtained, the measurement of the blood pressure in each period of 24 hours can be implemented, continuous parameter values are provided for clinical blood pressure diagnosis, and the measurement data are acquired through the acquisition device 3, so that a doctor can make diagnosis by utilizing the acquired data. Since the photo sensor 4 is used to perform the blood pressure non-sensing measurement, there is no expansion operation of the cuff 1, and thus, the comfort of wearing at night can be improved. Improving the sleeping quality of the patient and further enabling the blood pressure measurement data to be more accurate.

To sum up, in order to further facilitate the standard wearing of the armband 1, the photoelectric sensor 4 can be accurately and rapidly aligned with the brachial artery, a transparent plastic soft board is installed at the center of the armband 1, usually a PP plastic board is adopted, and the photoelectric sensor 4 is installed on the transparent plastic soft board, so that the photoelectric sensor 4 can be accurately aligned with the measured position when being watched through the transparent board 2 in the use process. Thereby reducing the installation difficulty and enabling the patient or family to be more easily installed by hands.

In addition, for the purpose of transmitting measurement data, a wireless communication module is also provided in the collector 3 and is connected in communication with the data processing module. In this embodiment, the wireless communication module is a bluetooth communication module or a WIFI communication module. When the system is specifically used, measurement data can be transmitted to a patient mobile phone client through the Bluetooth communication module, and also can be directly transmitted to a network server through the WIFI communication module, so that a doctor can conveniently and remotely check the measurement data.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims

1. The utility model provides a no sense 24 hours dynamic blood pressure appearance based on pulse wave phase difference, includes arm area (1) around can binding the arm to be provided with respectively at the both ends of arm area (1) and can make its first fastener (1.1) and second fastener (1.2) that are fixed in the arm, its characterized in that:

a photoelectric sensor (4) and a pressure sensor (5) are arranged on the inner side of the arm belt (1); the device is characterized in that a collector (3) is further arranged on the armband (1), a power module for supplying power to the photoelectric sensor (4) and the pressure sensor (5), a data processing module for receiving and processing electric signals of the photoelectric sensor (4) and the pressure sensor (5) and a storage module for storing processing data of the data processing module are arranged in the collector (3).

2. A non-inductive 24-hour dynamic blood pressure meter based on pulse wave phase difference according to claim 1, characterized in that the pressure sensors (5) are arranged on both sides of the photoelectric sensor (4) respectively.

3. A pulse wave phase difference based noninductive 24-hour dynamic blood pressure meter as claimed in claim 1, wherein a transparent plastic soft board is arranged at the center of the armband (1), and the photoelectric sensor (4) is arranged on the transparent plastic soft board.

4. A non-inductive 24-hour dynamic blood pressure meter based on pulse wave phase differences as claimed in claim 1, wherein said collector (3) further comprises a wireless communication module in communication with said data processing module.

5. The pulse wave phase difference based sensorless 24-hour dynamic blood pressure apparatus of claim 4 wherein the wireless communication module comprises a bluetooth communication module or a WIFI communication module.

6. A non-inductive 24-hour dynamic blood pressure meter based on pulse wave phase differences as claimed in claim 1, characterized in that the collector (3) is arranged outside the armband (1).

7. A non-inductive 24-hour dynamic blood pressure meter based on pulse wave phase differences as claimed in claim 6, wherein said collector (3) further comprises a display module.