CN220512844U - Biological characteristic information detection device and electronic equipment - Google Patents

Biological characteristic information detection device and electronic equipment Download PDF

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Publication number
CN220512844U
CN220512844U CN202321639311.3U CN202321639311U CN220512844U CN 220512844 U CN220512844 U CN 220512844U CN 202321639311 U CN202321639311 U CN 202321639311U CN 220512844 U CN220512844 U CN 220512844U
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finger
blood pressure
analog front
connecting plate
pulse wave
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程树青
丘芳芳
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Shenzhen Goodix Technology Co Ltd
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Shenzhen Goodix Technology Co Ltd
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Abstract

A biological characteristic information detection device and electronic equipment, wherein the biological characteristic information detection device comprises a finger stall, a pulse wave sensor, an analog front end and a micro control unit. The finger glove includes a mechanical structure or an air bladder. The pulse wave sensor includes a light emitter and a photodiode. The analog front end is electrically connected with the pulse wave sensor, and is used for receiving the electric signal and outputting an analog front end signal. The micro control unit is electrically connected with the analog front end, and is used for receiving the analog front end signal and outputting biological characteristic information, wherein the biological characteristic information comprises a blood pressure value. The biological characteristic information detection device can realize miniaturization of the blood pressure measurement device, is convenient for a user to carry about, and realizes blood pressure monitoring of the user in a non-home environment.

Description

Biological characteristic information detection device and electronic equipment
Technical Field
The present application relates to the technical field of wearable devices, and more particularly, to a biometric information detection apparatus and an electronic device.
Background
At present, mercury sphygmomanometers are gold standards in the blood pressure measurement field, require a user to have certain expertise, and can be dynamically adjusted according to the actual situation of a tester, so that the test result is accurate, and the application range of the mercury sphygmomanometer is wide. Although the electronic sphygmomanometer in the market at present can be used and operated without professional staff, the electronic sphygmomanometer is generally suitable for being placed in families and cannot be carried about due to the large whole size, so that the real-time blood pressure management of the hypertension crowd cannot be satisfied.
Therefore, how to realize miniaturization of the blood pressure measuring device, which is convenient for users to carry about and realize blood pressure monitoring in the non-home environment of the users is a technical problem to be solved urgently.
Disclosure of Invention
A biometric information detection device provided in a first aspect of an embodiment of the present application includes:
a finger glove comprising a mechanical structure or an air bladder for securing the finger glove to a user's finger;
the pulse wave sensor comprises a light emitter and a photodiode, wherein the light emitter is used for emitting a light signal, the light signal reaches the photodiode after being reflected or transmitted by an object to be detected, and the photodiode is used for converting the received light signal into an electric signal;
the analog front end is electrically connected with the pulse wave sensor and is used for receiving the electric signals and outputting analog front end signals;
the micro control unit is electrically connected with the analog front end and is used for receiving the analog front end signal and outputting biological characteristic information, and the biological characteristic information comprises a blood pressure value.
In one possible embodiment, the apparatus further comprises a pressure detector electrically connected to the analog front end.
In one possible embodiment, the finger glove is a two-end penetration finger glove, and the cross section of the two-end penetration finger glove is annular.
In one possible embodiment, the finger cuff is non-penetrating;
the non-through finger stall is provided with an opening at one end only;
the non-through type finger glove has a cross section of one of a rectangle, a circle, an ellipse, and a polygon, and has an inner space for accommodating the finger of the user.
In one possible embodiment, the finger glove further comprises an air conduit, the air conduit being connected to the balloon.
In one possible embodiment, the mechanical structure comprises a spring structure comprising a spring body and a connecting plate;
the connecting plate is connected with one end of the spring body, the other end of the spring body is connected with the finger stall, and the spring structure is arranged on one side, close to the opening, of the inner part of the finger stall.
In one possible embodiment, the spring body comprises a first spring body and a second spring body, the connection plates comprising a first connection plate and a second connection plate;
the first connecting plate is connected with the first spring body, the second connecting plate is connected with the second spring body, the light emitter is arranged on the first connecting plate, and the photodiode is arranged on the second connecting plate.
In one possible embodiment, the mechanical structure or the balloon is disposed inside the finger glove on a side adjacent to the opening.
In one possible embodiment, the mechanical structure comprises a motor structure, the motor structure comprises a motor and a connecting plate, the connecting plate is connected with the motor, the motor is used for controlling the connecting plate to move, and the motor structure is arranged on one side, close to the opening, of the inside of the finger glove.
In one possible embodiment, the biometric information further comprises at least one of a heart rate value and a blood oxygen value.
An electronic device provided in a second aspect of the embodiments of the present application includes any one of the biometric information detection apparatuses provided in the first aspect of the embodiments of the present application, and a display screen, where the display screen is disposed on an outer surface of the apparatus, and the display screen is configured to display the biometric information.
In one possible embodiment, the electronic device comprises an intelligent ring, a finger-clip type blood pressure measuring instrument, a finger-clip type blood pressure oximeter, and a finger-clip type multiparameter measuring instrument.
The embodiment of the application provides a biological characteristic information detection device, which can be used for carrying out blood pressure measurement based on fingers and completing accurate measurement of blood pressure with smaller volume, thereby realizing miniaturization of the blood pressure measurement device and being convenient for users to carry about.
The embodiment of the application also provides the electronic equipment, so that the hypertension user can conveniently and rapidly monitor the real-time blood pressure in a non-home environment, and the user experience is improved.
Drawings
Fig. 1 is a schematic illustration of a finger vessel from diastole to pressurization and back to diastole.
Fig. 2 is a schematic structural diagram of a biological feature information detection device according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of another biological information detecting device according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of still another biological information detecting device according to an embodiment of the present application.
Fig. 5 is a graph of PPG waveform amplitude during a blood vessel from full systolic to recovery diastolic.
FIG. 6 is a schematic diagram of a double Gaussian fitting method for calculating blood pressure.
Fig. 7 is a schematic diagram of a blood pressure detection result of a third knuckle of a finger by using the biometric information detection device according to the embodiment of the present application.
Fig. 8 is a schematic diagram of a blood pressure detection result of a second knuckle of a finger by the biological feature information detection device according to the embodiment of the present application.
Fig. 9 is a block diagram of an electronic device according to an embodiment of the present application.
Fig. 10 is a schematic diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
In addition, the terms "first," "second," etc. are used merely to distinguish similar objects and should not be construed to indicate or imply relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.
Figure 1 shows a schematic representation of a finger vessel from diastole to pressurization and back to diastole.
As shown in fig. 1 (a), the finger 10 includes a bone 101 and a blood vessel 102, and when the finger 10 is in a normal resting state, the blood vessel 102 is in a relaxed state. When pressure is applied to the finger 10, the blood vessels 102 on both sides of the finger 10 gradually change from the relaxed state to the compressed state, as shown in fig. 1 (b), at which time the blood flow of the blood vessels 102 becomes small to an almost cut-off state. Then when the pressure applied to the finger 10 is gradually released, as shown in fig. 1 (c), the blood vessel 102 gradually returns from the compressed state to the relaxed state.
During the pressurization of the blood vessel 102 or the recovery of the blood vessel 102, the pressure value at this time and the pressure pulse wave or the photoelectric pulse wave of the blood vessel 102 are synchronously recorded.
The waveforms of the pressure pulse wave and the photoelectric pulse wave have similar morphological characteristics, because the pressure pulse wave and the photoelectric pulse wave are actually two different manifestations of the same arterial periodic pulsation process, and essentially reflect the functional state of the cardiovascular system. Therefore, the physiological and pathological information contained in the pressure pulse wave or photoelectric pulse wave signals can be extracted through analysis and research of the characteristics of the pressure pulse wave or photoelectric pulse wave signals, and the method provides help for early diagnosis and prevention of cardiovascular system related diseases.
The pressure pulse wave is usually detected and obtained at the superficial arteries such as radial artery, carotid artery or femoral artery, and the change curve of arterial pressure with time is traced by using a pressure detector to obtain a pressure pulse wave waveform chart. The photoplethysmogram is generally obtained by detecting with a photoelectric sensor, so it is also often called photoplethysmogram, and is generally obtained by detecting with a photoplethysmography (Photo Plethysmography, PPG) method, and a change curve of the blood volume with time obtained by tracing with the method is referred to as a photoplethysmogram waveform, hereinafter, the photoplethysmogram waveform is also referred to as a PPG waveform.
According to the waveform of the pressure pulse wave or the photoelectric pulse wave in the pressurizing or recovering process, relevant characteristics such as PPG waveform peak value are extracted, an envelope curve is drawn, and according to the oscillometric principle, the maximum amplitude is the average blood pressure (Mean Blood Pressure, MBP), so that the systolic pressure (Systolic Blood Pressure, SBP) and the diastolic pressure (Diastolic Blood Pressure, DBP) can be obtained through a traditional double Gaussian fitting method, an envelope inflection point method or a deep learning algorithm.
Specifically, fig. 2 illustrates a schematic structural diagram of a biological information detection device provided in an embodiment of the present application, fig. 3 illustrates a schematic structural diagram of another biological information detection device provided in an embodiment of the present application, and fig. 4 illustrates a schematic structural diagram of yet another biological information detection device provided in an embodiment of the present application.
As shown in fig. 2, 3 and 4, an embodiment of the present application provides a biometric information detection apparatus 20, the apparatus 20 including:
a finger glove 200, said finger glove 200 comprising a mechanical structure 24 or a balloon 25, said mechanical structure 24 or said balloon 25 being used to secure said finger glove 200 to a user's finger 10.
Alternatively, referring to fig. 4, the finger glove 200 is a two-end penetration type finger glove 202, and the cross section of the two-end penetration type finger glove is a ring, and the ring includes a circular ring, a triangular ring, a square ring, an elliptical ring, and a wavy ring. The finger glove 202 in fig. 4 is similar to a finger ring, and the user can put the finger glove 202 with the two ends penetrating through the third knuckle (as shown in fig. 4 (a)) or the second knuckle (as shown in fig. 4 (b)) of the finger 10, so as to conveniently and quickly realize blood pressure detection.
Alternatively, referring to fig. 2 and 3, the finger glove 200 is non-penetrating, that is, the non-penetrating finger glove 201 is provided with an opening at only one end, the non-penetrating finger glove 201 has a cross section of one of a rectangle, a circle, an ellipse, and a polygon, and the non-penetrating finger glove 201 has an inner space for receiving the finger 10 of the user. During daily use, the non-penetrating finger stall 201 is less affected by ambient light, so that higher accuracy of blood pressure detection can be realized, and meanwhile, the requirements of convenience and rapidness can be met.
In the present embodiment, both the two-end pass-through finger glove 202 and the non-pass-through finger glove 201 may include the mechanical structure 24 or the air bag 25.
Optionally, the mechanical structure 24 or the balloon 25 is disposed inside the finger glove 200 on a side adjacent to the opening.
When the non-penetrating finger glove 201 is worn on the finger 10 of the user, the opening side of the non-penetrating finger glove 201 is close to the third knuckle part of the finger 10, and the mechanical structure 24 or the air bag 25 is arranged at the side of the non-penetrating finger glove 201 close to the opening, so that the waveform of the pressure pulse wave or the photoelectric pulse wave of the third knuckle part can be collected.
As an alternative embodiment, referring to fig. 3 and 4, the finger glove 200 includes the balloon 25 and an air conduit 270, the air conduit 270 being connected to the balloon 25, the air conduit 270 being capable of inflating and deflating the balloon 25.
As another alternative, the finger glove 200 includes the mechanical structure 24, the mechanical structure 24 being used to secure the finger glove 200 to the finger 10 of the user. The mechanical structure 24 includes a spring structure 240, the spring structure 240 including a spring body 241 and a web 242. The connection plate 242 is connected to one end of the spring body 241, the other end of the spring body 241 is connected to the finger glove 200, and the spring structure 240 is disposed at one side of the inside of the finger glove 200 near the opening.
Specifically, as an alternative embodiment, referring to fig. 2, the spring body 241 includes a first spring body 2411 and a second spring body 2412, and the connection plate 242 includes a first connection plate 2421 and a second connection plate 2422;
the first connection plate 2421 is connected with the first spring body 2411, the second connection plate 2422 is connected with the second spring body 2412, the first connection plate 2421 is provided with a light emitter 211, and the second connection plate 2422 is provided with a photodiode 212.
As yet another alternative embodiment, the mechanical structure 24 comprises a motor structure including a motor and a connecting plate, the connecting plate being connected to the motor, the motor being configured to control movement of the connecting plate, and the motor structure being disposed on a side of the interior of the finger glove 200 adjacent to the opening. The motor may control the connection plate to perform pressurization and depressurization operations on the blood vessel 102.
The pulse wave sensor 210, the pulse wave sensor 210 includes the light emitter 211 and the photodiode 212, the light emitter 211 is configured to emit an optical signal, the optical signal reaches the photodiode 212 after being reflected or transmitted by an object to be detected, and the photodiode 212 is configured to convert the received optical signal into an electrical signal.
Specifically, referring to the pulse wave sensor 210 shown in fig. 2, in the transmission type pulse wave sensor 210, the light signal emitted from the light emitter 211 is received by the photodiode 212 through the muscles, bones, veins and other connective tissues of the finger 10.
Specifically, referring to the pulse wave sensor 210 shown in fig. 4, in the reflection type pulse wave sensor 210, the light signal emitted from the light emitter 211 is transmitted through the skin tissue of the finger 10 and then reflected to the photodiode 212.
An Analog Front End (AFE) 220, the Analog Front End 220 is electrically connected to the pulse wave sensor 210, and the Analog Front End 220 is configured to receive the electrical signal and output an Analog Front End signal.
Specifically, the Analog front end 220 may amplify, filter, and Analog-to-Digital (AD) convert the electrical signal sensed by the pulse wave sensor 210, and the processed signal is the Analog front end signal.
A micro control unit (Microcontroller Unit, MCU) 230, the micro control unit 230 is electrically connected to the analog front end 220, and the micro control unit 230 is configured to receive the analog front end signal and output biometric information, wherein the biometric information includes a blood pressure value.
Optionally, when blood pressure detection is performed, the MCU may process the analog front-end signal by using a conventional dual gaussian fitting method or an envelope inflection point method or a deep learning algorithm, and then obtain a blood pressure value including a systolic pressure SBP and a diastolic pressure DBP.
As an alternative embodiment, the biometric information further comprises at least one of a heart rate value and an blood oxygen value. The pulse wave sensor 210 can be used for blood pressure detection and heart rate blood oxygen detection at the same time, and multiplexing of the pulse wave sensor 210 is achieved, so that the structure of the device 20 can be simplified, and the cost is saved.
Optionally, referring to fig. 3 and 4, the apparatus 20 further includes a pressure detector 260, and the pressure detector 260 is electrically connected to the analog front end 220.
As an alternative embodiment, the pressure detector 260 may be used to measure a pressure pulse wave, and then calculate a blood pressure value from the pressure pulse wave, and the pulse wave sensor 210 will be used to measure a heart rate value and an oxygen blood value.
As another alternative embodiment, the pressure detector 260 and the pulse wave sensor 210 may be combined to measure a blood pressure value, two initial blood pressure values are calculated according to the pressure pulse wave measured by the pressure detector 260 and the photoelectric pulse wave measured by the pulse wave sensor 210, respectively, and then the two initial blood pressure values are processed, for example, averaged, to obtain the target blood pressure value. In the present embodiment, the accuracy of the blood pressure value calculation result can be improved by calculating the blood pressure value using the pressure detector 260 and the pulse wave sensor 210 at the same time.
It should be noted that the pressure detector 260 may be applied to the apparatus 20 including fig. 2, in addition to the apparatuses of fig. 3 and 4, and the application scope of the pressure detector 260 is not limited in the embodiments of the present application.
Fig. 5 is a graph of PPG waveform amplitude during a blood vessel from full systolic to recovery diastolic.
Specifically, please refer to fig. 1 and fig. 5 together, taking the oscillometric method to measure blood pressure as an example, the blood vessel 102 blocking process is implemented by applying pressure to the finger 10 to obtain a photo pulse wave amplitude curve, the curve characteristics are obtained in a multi-dimension manner by a curve fitting manner, and the final blood pressure results, that is, the systolic pressure SBP and the diastolic pressure DBP in fig. 5, are obtained according to curve fitting parameters (Parameter 1, parameter2, parameter3. The PPG waveform amplitude curve is shown in fig. 5, with the abscissa being pressure and the ordinate being PPG waveform amplitude.
The general calculation method of the oscillometric method is as follows: the pressure corresponding to the position with the largest change of the blood vessel volume is the average blood pressure MBP, and then the internal relation among the systolic pressure SBP, the diastolic pressure DBP and the average blood pressure MBP is determined according to the characteristics of the envelope curve, and finally the blood pressure result is obtained.
FIG. 6 is a schematic diagram of a double Gaussian fitting method for calculating blood pressure. With reference to fig. 5 and 6, the method of calculating the blood pressure result is as follows:
first, an envelope curve is fitted by a double gaussian function:
wherein A1 and B1 are the ordinate and abscissa of the peak point of the envelope curve, A2 is the ordinate of the intersection point of the envelope curve and the y-axis, B2 is the difference between the point (which may be referred to as the left half-width point) located on the left side of the peak point and half the height of the peak point on the envelope curve and the abscissa of the peak point, and B3 is the difference between the point (which may be referred to as the right half-width point) located on the right side of the peak point and half the height of the peak point on the envelope curve and the abscissa of the peak point.
Then, after obtaining parameters of the envelope curve, the diastolic blood pressure DBP, the systolic blood pressure SBP, and the mean blood pressure MBP are calculated by the following formulas:
SBP=2.5*MBP-1.6*DBP
in addition to the calculation of blood pressure using the double gaussian fitting method described above, the envelope inflection point method may be used alternatively to calculate blood pressure.
Specifically, the principle of the envelope inflection point method is as follows: the elasticity of the artery under the condition of zero wall pressure crossing is maximum, two inflection points exist at the left side and the right side of the peak point of the envelope curve of the pressure pulse wave, the cuff pressures corresponding to the two inflection points are respectively the systolic pressure SBP and the diastolic pressure DBP, the pressure variation corresponding to the inflection points is maximum, so that the absolute value of the first derivative of the corresponding envelope curve is the maximum, and the value of the second derivative of the corresponding envelope curve is 0. Therefore, by calculating the first derivative or the second derivative of the pressure pulse wave envelope curve, two inflection points on the left and right sides of the peak point of the envelope curve can be found, thereby calculating the systolic pressure SBP and the diastolic pressure DBP, respectively.
Fig. 7 and fig. 8 are schematic diagrams of blood pressure detection results of a biological feature information detection device provided in the embodiment of the present application at a third knuckle and a second knuckle of a finger, respectively.
In fig. 7 and 8, the abscissa represents different subjects, and the ordinate represents the magnitude of the blood pressure value in millimeters of mercury (mmHg).
Where SBP0 and DBP0 represent true values of systolic and diastolic pressures recorded using a mercury stethoscope, and SBP1 and DBP1 represent values of systolic and diastolic pressures calculated by collecting pressure pulse waves at the knuckle.
As can be seen from fig. 7 and 8, the blood pressure detection results at the third knuckle and the second knuckle are very close to the blood pressure detection results recorded using the mercury stethoscope, and the blood pressure detection at the third knuckle and the second knuckle is feasible.
In table 1 below, blood pressure measurements were performed on 25 subjects at different positions such as the arm, the wrist, the third knuckle, and the second knuckle, each of which was obtained by using the oscillometric method to acquire a pressure pulse wave, envelope fitting was performed by extracting peaks of the pressure pulse wave, and finally, correlation coefficients of the Envelope Peak (EP) with the systolic pressure SBP, the diastolic pressure DBP, and the mean arterial pressure (Mean Arterial Pressure, MAP) were calculated.
TABLE 1
From table 1, it can be seen that the correlation coefficients of the systolic pressure SBP, diastolic pressure DBP, and mean arterial pressure MAP measured at the arm, wrist, third knuckle, and second knuckle and envelope peak EP have a strong correlation with blood pressure, both for the measured subject with normal blood pressure and for the measured subject with hypertension.
The accuracy evaluation results of the blood pressure data measured at the third knuckle and the second knuckle are given in table 2 below, respectively.
TABLE 2
Where MD represents the Median Difference (MD), and SD represents the standard Deviation (Standard Deviation, SD).
From table 2, it can be seen that the accuracy evaluation results of the blood pressure data measured at the third knuckle and the second knuckle. Specifically, the median difference SBP_MD of the systolic pressure SBP and the median difference DBP_MD of the diastolic pressure DBP are both smaller than 5 in absolute value, and the standard deviation SBP_SD of the systolic pressure SBP and the standard deviation DBP_SD of the diastolic pressure DBP are both smaller than 8 in absolute value, which are in accordance with the ISO medical standard.
The accuracy of the obtained blood pressure data accords with the standard through the biological characteristic information detection device 20 provided by the embodiment of the application for measuring the blood pressure at the third knuckle and the second knuckle.
Fig. 9 is a block diagram of an electronic device according to an embodiment of the present application.
As shown in fig. 9, the embodiment of the present application further provides an electronic device 40, where the electronic device 40 includes the biometric information detection apparatus 20 provided in the embodiment of the present application, and a display screen 30, where the display screen 30 is disposed on an outer surface of the apparatus 20, and the display screen 30 is used to display the biometric information.
Specifically, the biometric information displayed on the display screen 30 includes a blood pressure value, a blood oxygen value, and a heart rate value. The display screen 30 may display the blood pressure value alone or may display the blood pressure value, the blood oxygen value, and the heart rate value simultaneously.
Optionally, the wearable device further comprises an intelligent ring, a finger-clip type blood pressure measuring instrument, a finger-clip type blood pressure oximeter, a finger-clip type multiparameter measuring instrument and the like, and the portable blood pressure measuring device can be applied to fingers.
Fig. 10 is a schematic diagram of an electronic device according to an embodiment of the present application.
As shown in fig. 10, the electronic device 40 is a multifunctional finger-clip blood pressure oximeter, and the biometric information that can be measured includes: heart rate values, blood oxygen values, heart Rate Variability (HRV), blood pressure values, and the like.
The electronic device 40 in the embodiment of the application can facilitate the quick and convenient monitoring of the real-time blood pressure of the hypertension user in the non-home environment, and promote the user experience.
The preferred embodiments of the present application have been described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present application within the scope of the technical concept of the present application, and all the simple modifications belong to the protection scope of the present application.

Claims (12)

1. A biometric information detection apparatus, the apparatus comprising:
a finger glove comprising a mechanical structure or an air bladder for securing the finger glove to a user's finger;
the pulse wave sensor comprises a light emitter and a photodiode, wherein the light emitter is used for emitting a light signal, the light signal reaches the photodiode after being reflected or transmitted by an object to be detected, and the photodiode is used for converting the received light signal into an electric signal;
the analog front end is electrically connected with the pulse wave sensor and is used for receiving the electric signals and outputting analog front end signals;
the micro control unit is electrically connected with the analog front end and is used for receiving the analog front end signal and outputting biological characteristic information, and the biological characteristic information comprises a blood pressure value.
2. The apparatus of claim 1, further comprising a pressure detector electrically connected to the analog front end.
3. The device of claim 1 or 2, wherein the finger glove is a two-terminal through finger glove, the two-terminal through finger glove being annular in cross-section.
4. The device of claim 1 or 2, wherein the finger cuff is non-penetrating;
the non-through finger stall is provided with an opening at one end only;
the non-through type finger glove has a cross section of one of a rectangle, a circle, an ellipse, and a polygon, and has an inner space for accommodating the finger of the user.
5. The device of claim 3, wherein the finger glove further comprises an air conduit, the air conduit being connected to the balloon.
6. The device of claim 4, wherein the mechanical structure comprises a spring structure comprising a spring body and a web;
the connecting plate is connected with one end of the spring body, the other end of the spring body is connected with the finger stall, and the spring structure is arranged on one side, close to the opening, of the inner part of the finger stall.
7. The device of claim 6, wherein the spring body comprises a first spring body and a second spring body, the connection plate comprising a first connection plate and a second connection plate;
the first connecting plate is connected with the first spring body, the second connecting plate is connected with the second spring body, the light emitter is arranged on the first connecting plate, and the photodiode is arranged on the second connecting plate.
8. The device of claim 4, wherein the mechanical structure or the balloon is disposed on a side of the interior of the finger glove adjacent the opening.
9. The device of claim 4, wherein the mechanical structure comprises a motor structure, the motor structure comprises a motor and a connecting plate, the connecting plate is connected with the motor, the motor is used for controlling the connecting plate to move, and the motor structure is arranged on one side, close to the opening, of the inside of the finger glove.
10. The apparatus of claim 1, wherein the biometric information further comprises at least one of a heart rate value and an blood oxygen value.
11. An electronic device comprising the apparatus of any one of claims 1 to 10, and a display screen disposed on an outer surface of the apparatus, the display screen for displaying the biometric information.
12. The electronic device of claim 11, wherein the electronic device comprises an intelligent ring, a finger-clip blood pressure meter, a finger-clip blood oxygen meter, a finger-clip multiparameter meter.
CN202321639311.3U 2023-06-26 2023-06-26 Biological characteristic information detection device and electronic equipment Active CN220512844U (en)

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