CN216124435U - A wearable device for non-invasive blood pressure dynamic tracking and monitoring - Google Patents
A wearable device for non-invasive blood pressure dynamic tracking and monitoring Download PDFInfo
- Publication number
- CN216124435U CN216124435U CN202120179210.7U CN202120179210U CN216124435U CN 216124435 U CN216124435 U CN 216124435U CN 202120179210 U CN202120179210 U CN 202120179210U CN 216124435 U CN216124435 U CN 216124435U
- Authority
- CN
- China
- Prior art keywords
- blood pressure
- module
- pressure signal
- wrist
- pressure value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000036772 blood pressure Effects 0.000 title claims abstract description 222
- 238000012544 monitoring process Methods 0.000 title claims abstract description 30
- 210000000707 wrist Anatomy 0.000 claims abstract description 49
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 23
- 210000004204 blood vessel Anatomy 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims description 32
- 230000008859 change Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 10
- 230000008054 signal transmission Effects 0.000 claims description 6
- 210000002321 radial artery Anatomy 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000284 extract Substances 0.000 abstract description 2
- 238000013507 mapping Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000035488 systolic blood pressure Effects 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 206010020772 Hypertension Diseases 0.000 description 2
- 230000004872 arterial blood pressure Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 238000013523 data management Methods 0.000 description 2
- 230000035487 diastolic blood pressure Effects 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 210000005240 left ventricle Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
本实用新型公开了一种用于无创血压动态跟踪监测的穿戴式装置。血压信号获取模块，获取两路血压信号发送到血压信号处理模块，对两路血压信号进行滤波去噪、放大并提取两路血压信号的时间差，得到脉搏波速度，发送到血压信号与血压值转换模块，将两路血压信号的变化转换为血压值的变化，进而实现血压的动态跟踪；血压信号获取模块接触被监测者腕部的动脉血管皮肤表面，进行初始血压标定，建立实际血压值与信号值之间的映射关系；获取脉搏波速度，获得血压指数确定真实血压。本实用新型装置可以实现穿戴式、无创、便携、动态、连续血压跟踪监测，提高用户的舒适体验度，对用户日常活动不造成干扰，并能实时反应用户的血压情况。
The utility model discloses a wearable device used for non-invasive blood pressure dynamic tracking monitoring. The blood pressure signal acquisition module obtains two blood pressure signals and sends them to the blood pressure signal processing module, filters and denoises the two blood pressure signals, amplifies and extracts the time difference between the two blood pressure signals, obtains the pulse wave velocity, and sends the blood pressure signal to the blood pressure value conversion. The module converts the changes of the two blood pressure signals into changes in the blood pressure value, thereby realizing the dynamic tracking of blood pressure; the blood pressure signal acquisition module contacts the arterial blood vessel skin surface of the wrist of the monitored person to perform initial blood pressure calibration, and establishes the actual blood pressure value and signal. The mapping relationship between the values; obtain the pulse wave velocity, obtain the blood pressure index to determine the true blood pressure. The device of the utility model can realize wearable, non-invasive, portable, dynamic and continuous blood pressure tracking monitoring, improve the user's comfortable experience, do not interfere with the user's daily activities, and can reflect the user's blood pressure in real time.
Description
Technical Field
The utility model belongs to a blood pressure monitoring device in the field of medical equipment, and particularly relates to a wearable device for non-invasive dynamic tracking and monitoring of blood pressure.
Background
At present, the number of hypertension patients in China is increasing, and the existing household monitoring instruments for hypertension mainly are arm type blood pressure monitors based on an oscillography, so that the problem of high power consumption exists due to the fact that air is required to be filled and discharged, meanwhile, the interference on a tested person is large, the instrument is particularly not suitable for dynamic continuous blood pressure monitoring in the sleeping process, and continuous arterial blood pressure monitoring cannot be achieved.
At present, a wearable dynamic blood pressure monitoring mode is mainly based on a contact sensor for obtaining pulse wave transmission speed through electrocardio signals, blood oxygen signals and the like, and electronic components such as an electrocardio monitoring electrode, a blood oxygen probe and the like need to be arranged on a tested person, so that a certain monitoring burden still exists for a user, and the wearable dynamic blood pressure monitoring mode is still inconvenient.
In addition, the existing wearable noninvasive dynamic blood pressure monitoring system needs another reference device for frequently calibrating the wearable system, or the system is always in a stable pressurization state in the monitoring process by utilizing servo control, so that the daily use of the system is limited to a certain extent, the monitoring burden of a tested person is caused, and certain interference is caused to the daily life of a user.
SUMMERY OF THE UTILITY MODEL
In view of the above, in order to solve the problems in the background art, the present invention is directed to a wearable device for non-invasive blood pressure dynamic tracking monitoring, so as to simplify wearable continuous blood pressure monitoring and solve the technical problem that the existing blood pressure tracking and device system needs to frequently start another reference device for calibration or servo control.
The device can realize non-invasive, portable, dynamic and continuous blood pressure tracking monitoring, improve the comfort experience of the user, does not interfere with the daily activities of the user, and can reflect the blood pressure condition of the user in real time.
The technical scheme adopted by the utility model comprises the following steps:
the blood pressure signal acquisition module is arranged on the skin surface of the artery blood vessel at the wrist of the monitored person and used for acquiring two paths of blood pressure signals of the sampling position at the wrist of the monitored person and then sending the two paths of blood pressure signals to the blood pressure signal processing module;
the blood pressure signal processing module is connected to the blood pressure signal acquisition module and used for filtering, denoising, amplifying and extracting the time difference of the two paths of blood pressure signals received and acquired from the blood pressure signal acquisition module so as to obtain the pulse wave velocity and sending the two paths of blood pressure signals and the pulse wave velocity to the blood pressure signal and blood pressure value conversion module;
and the blood pressure signal and blood pressure value conversion module is connected to the blood pressure signal processing module and is used for converting the change of the two paths of blood pressure signals received from the blood pressure signal and blood pressure value conversion module into the change of the blood pressure value to obtain the blood pressure value, so that the dynamic tracking of the blood pressure is realized.
The device further comprises: and the dynamic blood pressure display module is connected to the blood pressure signal and blood pressure value conversion module and is used for receiving and displaying the blood pressure value obtained by dynamic tracking monitoring from the blood pressure signal and blood pressure value conversion module.
The device further comprises: and the signal transmission module is connected to the blood pressure signal and blood pressure value conversion module, and is used for receiving the blood pressure value obtained by dynamic tracking monitoring of the blood pressure signal and blood pressure value conversion module and transmitting the blood pressure value to a background data management system, such as a health management database.
The blood pressure signal acquisition module is provided with two detection ends, namely a proximal end sampling detection end and a distal end sampling detection end, wherein the proximal end sampling detection end and the distal end sampling detection end are respectively contacted with a proximal end sampling position and a distal end sampling position on a radial artery on the surface of the skin of the wrist of the monitored person.
The device further comprises: the wrist watch wrist strap module comprises a wrist watch body and a wrist strap, wherein the wrist watch body is connected with the wrist strap, a signal processing and transmitting module is arranged on the wrist watch body, and the signal processing and transmitting module mainly comprises a blood pressure signal acquisition module, a blood pressure signal processing module and a blood pressure signal and blood pressure value conversion module.
Meanwhile, the utility model provides a blood pressure signal acquisition module which adopts two blood pressure sensors and can monitor two blood pressure pulse signals at the wrist of a tested person at the same time so as to obtain the pulse wave transmission time difference.
The utility model then does not require frequent initiation of reference measurements within one wear measurement cycle.
The utility model has the beneficial effects that:
the utility model provides a blood pressure signal acquisition module, which adopts two parallel blood pressure signal acquisition channels, can simultaneously acquire blood pressure signals of two different sampling positions of the wrist of a tested person and is convenient for acquiring the transmission time of pulse waves.
After the method is adopted, reference measurement does not need to be started frequently in a one-time wearing measurement period, dynamic blood pressure tracking is realized, and frequent calibration or servo control is not needed.
Drawings
FIG. 1 is a schematic diagram of a dynamic device according to an embodiment of the present disclosure.
Fig. 2 is a schematic diagram of a dynamic blood pressure tracking monitoring device according to an embodiment of the present disclosure.
Fig. 3 is a diagram illustrating an application scenario of a dynamic device according to an embodiment of the disclosure.
FIG. 4 is a schematic diagram illustrating initial calibration of wearing of a dynamic device according to an embodiment of the disclosure
In the figure: 1. a dynamic device; 11. the device comprises a blood pressure signal acquisition module 12, a blood pressure signal processing module 13, a blood pressure signal and blood pressure value conversion module 14, a dynamic blood pressure display module 15 and a signal output module; 21. the wrist watch comprises a wrist watch body, 22, a wrist strap, 24, a signal processing and transmitting module 32, a far-end sampling position, 33, a near-end sampling position, 34, a radial artery, 41, a blood pressure calibration air bag, 42, a human wrist schematic diagram, 43 and a controllable air source.
Detailed Description
The present disclosure is described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1, the apparatus 1 comprises:
the blood pressure signal acquisition module 11 is arranged on the skin surface of the artery blood vessel at the wrist of the monitored person, and is used for acquiring two paths of blood pressure signals of the sampling position at the wrist of the monitored person and sending the two paths of blood pressure signals to the blood pressure signal processing module;
the blood pressure signal processing module 12 is connected to the blood pressure signal acquiring module 11, and is configured to filter, denoise, amplify and extract a time difference between the two blood pressure signals received and acquired from the blood pressure signal acquiring module, so as to obtain a pulse wave velocity, that is, a transmission velocity of the pulse wave, and send the two blood pressure signals and the pulse wave velocity to the blood pressure signal and blood pressure value converting module;
and the blood pressure signal and blood pressure value conversion module 13 is connected to the blood pressure signal processing module 12, and is used for converting changes of the two paths of blood pressure signals received from the blood pressure signal and blood pressure value conversion module into changes of blood pressure values, establishing a blood pressure tracking model, tracking the blood pressure changes by combining the pulse wave velocity, obtaining the blood pressure values, and further realizing dynamic tracking of the blood pressure.
The device 1 further comprises: and the dynamic blood pressure display module 14 is connected to the blood pressure signal and blood pressure value conversion module and is used for receiving and displaying the blood pressure value obtained by dynamic tracking monitoring of the blood pressure signal and blood pressure value conversion module.
The device 1 further comprises: and the signal transmission module 15 is connected to the blood pressure signal and blood pressure value conversion module, and is used for receiving the blood pressure value obtained by dynamic tracking monitoring from the blood pressure signal and blood pressure value conversion module and transmitting the blood pressure value to a background data management system, such as a medical health management database.
As shown in fig. 3, the blood pressure signal acquiring module 11 has two detecting ends, namely a proximal end sampling detecting end and a distal end sampling detecting end, and the proximal end sampling detecting end and the distal end sampling detecting end respectively contact a proximal end sampling position 33 and a distal end sampling position 32 on a radial artery 34 on the skin surface of the wrist of the monitored person.
In this embodiment, the blood pressure signal obtaining module 11 adopts two blood pressure sensors to simultaneously detect two blood pressure pulse signals at the wrist of the detected person.
As shown in fig. 2, a wrist watch wrist strap module is further provided, which includes a wrist watch body 21 and a wrist strap 22, the wrist watch body 21 is connected with the wrist strap 22, a signal processing and transmitting module 24 is arranged on the wrist watch body 21, the signal processing and transmitting module 24 is mainly composed of a blood pressure signal acquiring module 11, a blood pressure signal processing module 12 and a blood pressure signal and blood pressure value converting module 13, and may further include a dynamic blood pressure display module 14 and a signal transmitting module 15, so that each function module in the wearable device is positioned and fixed.
The signal transmission method adopted by the signal transmission module 15 includes: wired transmission and wireless transmission. The condition can be applied to the real-time or uploading of the blood pressure data of the monitored person to a medical system or the hands of the monitored person, so that the information sharing degree is improved, and the problem can be found conveniently in time. Of course, the application scenario of the signal transmission module 15 is not limited to the above example, and may be correspondingly configured according to actual needs.
The dynamic blood pressure display module 14 is a tablet computer or a smart phone. The ambulatory blood pressure display module 14 may be implemented in display hardware, including: a display screen, a display terminal, or other display devices, etc., and may also be a software interface for displaying, such as: mobile phone APP, public number applet, etc., or may be various ways of combining software and hardware, and the disclosure is not limited to the embodiments.
The wrist strap in the wrist strap and wrist watch module is a flexible silk strap.
In this embodiment, the blood pressure signal obtaining module 11 employs a flexible pressure sensor to simultaneously detect two blood pressure pulse signals at the wrist of the detected person.
A signal processing and transmission module 24 for processing the blood pressure signal and wirelessly transmitting the blood pressure signal via bluetooth, typically an integrated printed circuit board.
Referring to fig. 3, in a preferred embodiment of the present disclosure, the ambulatory blood pressure tracking and monitoring device is worn on the left wrist of the subject, and the blood pressure signal acquiring module 11 is worn on the radial artery 34 of the left wrist, and simultaneously acquires blood pressure pulse signals of the far-center sampling position 32 and the near-center sampling position 33 of the wrist of the subject.
One process that may be implemented by the present invention is as follows:
step S201: wearing an initial blood pressure calibration process;
after the wrist band wristwatch module is worn, as shown in fig. 4, a blood pressure calibration air bag 41 is used for carrying out wearing initial blood pressure calibration, wherein the blood pressure calibration air bag 41 is externally connected with a controllable air source 42 for inflation and deflation, the blood pressure calibration air bag 41 is in contact joint with a blood pressure signal acquisition module, pressure is additionally applied to a blood pressure sensor of the blood pressure signal acquisition module from low to high by inflating the blood pressure calibration air bag 41, the blood pressure calibration air bag is an additional reference device and is not connected with the blood pressure signal acquisition module, and the blood pressure calibration air bag is in contact joint with the blood pressure signal acquisition module in the calibration process, so that the blood pressure signal acquisition module is externally pressurized to experience calibration of average blood pressure Pcali.meanAnd calibrating the systolic pressure Pcali.sysThe alternating signals of the blood pressure signal acquisition modules corresponding to the two pressure points are respectively maximum amplitude and disappearance of the alternating signals, and the corresponding calibrated average blood pressure P is determined and obtained according to the signal positions of the maximum amplitude and the disappearance of the alternating signalscali.meanAnd calibrating the systolic pressure Pcali.sysDetermining the state of the blood pressure in the arterial duct at the calibration moment, namely the systolic pressure P measured by the blood pressure measuring systems' and diastolic pressure Pd' and blood pressure index KBP。
Then directly determining the blood pressure state by a clinical reference blood pressure measuring device, specifically determining the systolic pressure P by a stethoscopesAnd diastolic pressure PdIn combination with the blood pressure index KBPThe mean blood pressure is determined.
Step S202: establishing a mapping relation between an actual blood pressure value and a signal value;
for wearable blood pressure measurement, due to the characteristics of different wearing positions and tightness and dynamic change of the blood pressure state of a human body every time, a blood pressure calibration process is required for wearing every time, the relation between the output signal of the blood pressure signal acquisition module worn at this time and the actual blood pressure is determined, and the relation is obtained through the calibration process.
Step S203: and extracting the time difference of the blood pressure signals pumped out of the left ventricle of the heart from the obtained blood pressure signals to the proximal end sampling position and the distal end sampling position of the wrist respectively so as to obtain the transmission speed of the pulse wave.
Step S204: determining a variation value of the arterial vessel transmural pressure by checking a Pulse Wave Velocity (PWV);
after the blood pressure calibration is finished, the wrist strap and wrist watch module works in a certain low external pressure state, the external pressure is reflected in a direct current component of a signal of the blood pressure signal acquisition module and should not change in the wearing process (except a false signal generated by human body movement), and the direct current signal can be changed when the blood pressure state changes under the standard measurement condition.
And whether the blood pressure state changes is determined by dynamically monitoring the direct current signal value output by the blood pressure signal acquisition module. The change value of the dc signal value is not directly equal to the average blood pressure change value, and thus the average blood pressure change value cannot be obtained by directly detecting the change value of the dc signal. Under the standard measurement conditions specified by IEEE 2014-1708, the external pressurization is considered to be consistent in certain wearing measurement, and no muscle action additional pressure exists, and under such conditions, the change value delta P of the arterial vessel transmural pressure can be consideredtran＝ΔPmean。
Obtaining pulse wave velocity through the time difference of signals of a proximal end sampling position 33 and a distal end sampling position 32, and determining the variation value delta P of arterial blood vessel transmural pressure through checking the pulse wave velocitytranThen using the change value delta P of the arterial blood vessel transmural pressuretranAs the mean blood pressure variation value Δ PmeanThe distance between the two pressure sensors of the blood pressure signal acquisition module is known and is a fixed distance, so the pulse wave propagation speed can be represented by the pulse wave propagation time difference.
Step S205: the blood pressure tracking is realized by combining the arterial blood vessel compliance curve, and the complete blood pressure information is determined;
the arterial blood pressure signal is locally excited for an input interface of the blood pressure signal acquisition module, and the alternating change P of the blood pressuremea.ACIs selected from the blood flow pulse wave signals collected at the proximal end sampling position 33 and the distal end sampling position 32, and is the waveform of the blood flow pulse wave signalAnd the difference value of the maximum peak minus the minimum trough is obtained by conversion.
It can be seen that the individual modulation parameter Kmodi.ACIs the ratio of the blood pressure differential value at the beginning of wearing to the maximum amplitude of the pulse signal obtained by the measuring signal in the process of applying external force, and can be considered as unchanged in the process of wearing and measuring for a certain time.
The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (5)
1. A wearable device for noninvasive blood pressure dynamic tracking monitoring, characterized in that:
the device (1) comprises:
the blood pressure signal acquisition module (11) is placed on the surface of the arterial blood vessel skin of the wrist of the monitored person and used for acquiring two paths of blood pressure signals of the sampling position of the wrist of the monitored person and sending the two paths of blood pressure signals to the blood pressure signal processing module;
the blood pressure signal processing module (12) is connected to the blood pressure signal acquisition module (11) and is used for filtering, denoising, amplifying and extracting the time difference of the two paths of blood pressure signals received and acquired from the blood pressure signal acquisition module so as to obtain the pulse wave velocity, and sending the two paths of blood pressure signals and the pulse wave velocity to the blood pressure signal and blood pressure value conversion module;
and the blood pressure signal and blood pressure value conversion module (13) is connected to the blood pressure signal processing module (12) and is used for converting the change of the two paths of blood pressure signals received from the blood pressure signal and blood pressure value conversion module into the change of the blood pressure value to obtain the real blood pressure so as to realize the dynamic tracking of the blood pressure.
2. A wearable device for non-invasive blood pressure dynamic tracking monitoring according to claim 1, characterized in that:
the device (1) further comprises:
and the dynamic blood pressure display module (14) is connected to the blood pressure signal and blood pressure value conversion module and is used for receiving and displaying the blood pressure value obtained by dynamic tracking monitoring from the blood pressure signal and blood pressure value conversion module.
3. A wearable device for non-invasive blood pressure dynamic tracking monitoring according to claim 1 or 2, characterized in that: the device (1) further comprises:
and the signal transmission module (15) is connected to the blood pressure signal and blood pressure value conversion module and is used for receiving the blood pressure value obtained by dynamic tracking monitoring from the blood pressure signal and blood pressure value conversion module and transmitting the blood pressure value to the background database.
4. A wearable device for non-invasive blood pressure dynamic tracking monitoring according to claim 1, characterized in that:
the blood pressure signal acquisition module (11) has two detection ends of a proximal end sampling detection end and a distal end sampling detection end, and the proximal end sampling detection end and the distal end sampling detection end respectively contact a proximal end sampling position (33) and a distal end sampling position (32) on a radial artery (34) on the surface of the skin of the wrist of the monitored person.
5. A wearable device for non-invasive blood pressure dynamic tracking monitoring according to claim 1 or 3, characterized in that: the device (1) further comprises:
the wrist watch wrist strap module comprises a wrist watch body (21) and a wrist strap (22), wherein the wrist watch body (21) is connected with the wrist strap (22), a signal processing and transmitting module (24) is arranged on the wrist watch body (21), and the signal processing and transmitting module (24) is composed of a blood pressure signal acquisition module (11), a blood pressure signal processing module (12) and a blood pressure signal and blood pressure value conversion module (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120179210.7U CN216124435U (en) | 2021-01-22 | 2021-01-22 | A wearable device for non-invasive blood pressure dynamic tracking and monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120179210.7U CN216124435U (en) | 2021-01-22 | 2021-01-22 | A wearable device for non-invasive blood pressure dynamic tracking and monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216124435U true CN216124435U (en) | 2022-03-25 |
Family
ID=80764648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120179210.7U Active CN216124435U (en) | 2021-01-22 | 2021-01-22 | A wearable device for non-invasive blood pressure dynamic tracking and monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216124435U (en) |
-
2021
- 2021-01-22 CN CN202120179210.7U patent/CN216124435U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112890790B (en) | Wearable noninvasive dynamic blood pressure tracking and monitoring method | |
| US10729338B2 (en) | Blood pressure measurement device and calibration method thereof | |
| CN101884526B (en) | Arterial blood pressure measuring device based on ultrasonic blood flow information | |
| CN100346740C (en) | Blood pressure measuring device based on radial artery pulse information | |
| FI103760B (en) | Method and arrangement for measuring blood pressure | |
| CN101327121B (en) | Physiological parameter measuring device | |
| FI103758B (en) | Method and apparatus for measuring blood pressure | |
| CN101229058A (en) | Initial calibration device for measuring arterial blood pressure by pulse wave transmission time method | |
| CN103099610B (en) | Ambulatory blood pressure measuring device and method based on pulse wave transmission time difference of left brachial artery and right brachial artery | |
| CN106264504A (en) | Noninvasive Blood Pressure Measurement System based on finger arteriogram and method | |
| CN105708431A (en) | Real-time blood pressure measuring device and measuring method | |
| CN100502768C (en) | Human physiological parameter monitoring device based on high-frequency photoplethysmography signals | |
| US11800986B2 (en) | Non-pressure continuous blood pressure measuring device and method | |
| US20220265158A1 (en) | Sphygmomanometer | |
| CN111513752B (en) | A Pulse Diagnosis Instrument Based on Pulse Acoustic Signal | |
| CN202397456U (en) | Dynamic blood pressure measuring device | |
| TWI452996B (en) | No balloon blood pressure measurement device | |
| TW201634004A (en) | Wearable hybrid blood vessel flow velocity detector | |
| CN216124435U (en) | A wearable device for non-invasive blood pressure dynamic tracking and monitoring | |
| TWI644628B (en) | Physiological sensing fabric and method thereof | |
| US20230404416A1 (en) | A method and a device for calibrating a blood pressure estimation model for determining tonoarteriogram signals | |
| CN208447576U (en) | Multi-parameter detector | |
| CN116746894A (en) | Biological characteristic information detection device and electronic equipment | |
| JP2004081285A (en) | Portable type blood pressure measuring instrument | |
| Jin-ling et al. | Design of electronic blood pressure monitoring system based on mobile telemedicine system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |