CN215227575U - Wearable FFR value detection device - Google Patents
Wearable FFR value detection device Download PDFInfo
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- CN215227575U CN215227575U CN202023249188.3U CN202023249188U CN215227575U CN 215227575 U CN215227575 U CN 215227575U CN 202023249188 U CN202023249188 U CN 202023249188U CN 215227575 U CN215227575 U CN 215227575U
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- heart rate
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Abstract
The utility model discloses a wearing formula FFR value detection device, including the casing, still include: the pressure sensing unit consists of two pressure sensors which are back to back in the vertical direction; the heart rate sensing unit comprises an LED lamp and a photoelectric detector and is arranged at the bottom of the shell; the processing unit is connected with the pressure sensor and the photoelectric detector and used for calculating blood pressure, heart rate and FFR value; and the display unit is connected with the processing unit and displays the required information. The beneficial effects of the utility model include: the blood pressure, the heart rate and the FFR value can be detected at any time according to requirements, the convenience and the rapidness are realized, and meanwhile, a hardware foundation is laid for portable monitoring of the FFR value.
Description
Technical Field
The utility model relates to a medical science detection area, in particular to wearing formula FFR value detection device.
Background
The size of fractional flow reserve in a branch of the cardiovascular system is related to many other factors, such as the number of branches of the cardiovascular system and the shape of the vessel, the volume of the heart muscle, the blood pressure, the heart rate, the blood viscosity, etc., in addition to the degree of stenosis in the vessel. The number of branches of the cardiovascular system and the shape of the blood vessels of a person are basically determined and are not obviously changed in a short time, for example, the stenosis degree at a certain position is basically not changed greatly in half a year or a year, and the parameters with the maximum change are parameters such as blood pressure, heart rate, blood viscosity and the like. According to research, the FFR value is in inverse relation with the heart rate, the blood pressure and the blood viscosity, the larger the blood pressure and the higher the heart rate, the more viscous the blood, the lower the FFR value, and the inconsistent change degrees of the FFR by the blood pressure, wherein the change of the FFR by the blood pressure is the most obvious, the blood viscosity is the second, and the heart rate is the last. According to the relationship between the information such as blood pressure, heart rate or viscosity and the FFR value, a corresponding curve and a corresponding relational expression can be fitted, so that the FFR value can be calculated in real time according to the curve after the blood pressure and the heart rate are obtained, and the mode is described in detail in the public number Atrery Arery.
And wearing formula blood pressure check and rhythm of the heart detect comparatively ripe in prior art, like utility model discloses a simple and easy blood pressure measuring device based on flat tension method, utility model of publication number CN206026327U discloses a realize wearable equipment of rhythm of the heart control on the wrist strap. In the prior art, wearable devices usually employ a PPG (Photoplethysmography) pulse wave method for heart rate detection, wherein PPG is a method for measuring heart rate based on the principle that the volume of blood changes with the pulse of a pulse is detected by photoelectricity. Wearable equipment is through the optical heart rate sensing module who contains LED lamp and photoelectric detector to user's wearing position emitted light signal and detect optical signal's reflection intensity to can obtain this user's rhythm of the heart after the reflection intensity change frequency that obtains the detection is handled. The possibility of portable detection of FFR is therefore already technically achieved.
However, the prior art lacks a wearable device that can detect blood pressure, heart rate and FFR values simultaneously.
SUMMERY OF THE UTILITY MODEL
To prior art can not possess the problem that detects blood pressure, rhythm of the heart and FFR value simultaneously, the utility model provides a wearing formula FFR value detection device through the effective integration of two kinds of techniques, realizes the detection of FFR value, can regard as the hardware basis who realizes portable detection FFR.
The technical scheme of the utility model as follows.
A wearable FFR value detection device, includes the casing, still includes:
the pressure sensing unit consists of two pressure sensors which are back to back in the vertical direction;
the heart rate sensing unit comprises an LED lamp and a photoelectric detector and is arranged at the bottom of the shell;
the processing unit is connected with the pressure sensor and the photoelectric detector and used for calculating blood pressure, heart rate and FFR value;
and the display unit is connected with the processing unit and displays the required information.
The utility model discloses a blood pressure detection is based on the measurement principle of flat tension method, in two pressure sensor, be located below one and be used for responding to the pressure that the artery pulsated, be located above one and be used for responding to the pressure that the finger pressed, because of the pressure that the pulse is pulsating is proportional to blood pressure, consequently can calculate the blood pressure according to the pulse pressure gauge after the calibration, during the use, place the pressure-sensitive cell on the artery surface of wrist, hug closely skin, press the pressure sensor of upside with the thumb, processing unit can press pressure and thumb this moment and press the demonstration after the pressure calculation on the display element. When the blood pressure is stably pressed for a certain time after a certain pressure is reached, the blood pressure value can be read, and the blood pressure value is the maximum value of the systolic pressure. Because a pressure sensor detects the pressure of the finger, the pressure of each finger pressing can be ensured to be consistent with the pressure during correction, the change of the blood pressure can be detected under the condition that other conditions are not changed, and the device can be calibrated once at intervals to ensure the accurate reading.
The utility model discloses a heart rate detects and adopts PPG (Photoplethysmography) pulse wave method to carry out heart rate detection, and wherein PPG is a method based on the principle that photoelectric detection blood volume changes along with the pulse is beated and is carried out heart rate measurement. Optical heart rate sensing module through containing LED lamp and photoelectric detector is to wearing position emitted light signal and detect optical signal's reflection intensity of user to can obtain this user's rhythm of the heart after the reflection intensity change frequency that obtains the detection is handled.
The utility model discloses only need in advance with the leading-in processing unit of the relational expression that the fitting curve of wearing person's blood pressure, rhythm of the heart and FFR value corresponds, detect out blood pressure, rhythm of the heart after at every time, directly can obtain the FFR value according to the formula calculation, consequently need not rely on complicated algorithm, also need not make the change to the formula.
The utility model discloses when using the finger to press down pressure sensor and carry out blood pressure measurement, skin will be hugged closely in the lump to rhythm of the heart sensing unit for it is more accurate to measure numerical value.
Preferably, one side of the bottom of the shell, which is close to the pressure sensing unit, is an inclined plane, and the heart rate sensing unit is arranged in the inclined plane. Because skin has elasticity, when pressing pressure sensor, local skin is slightly sunken, and the casing opposite side can slightly perk, sets up the casing bottom and is close to the one side of pressure-sensitive cell as the inclined plane, can paste skin more easily.
Preferably, the pressure sensing unit is connected with the shell through a plurality of soft pipe bodies, and wires are distributed in the pipe bodies. Because the pressure sensing unit needs to be pressed when in use, the pressure sensing unit cannot be in hard connection with the shell, otherwise the effect of the pressure can be influenced. The soft tube body ensures the safety of the lead and cannot be influenced by the shell when being pressed.
Preferably, the pressure sensor is a piezoresistive sensor.
Preferably, the display unit is a touch screen.
Preferably, a surface of the pressure sensor located on an upper side of the pressure sensor is provided with a fingerprint-like groove.
The beneficial effects of the utility model include: the blood pressure and the heart rate can be detected at any time according to requirements, the convenience and the rapidness are realized, and meanwhile, a hardware foundation is laid for portable monitoring of the FFR value.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a bottom view of an embodiment of the present invention;
fig. 3 is a side view of an embodiment of the invention;
the figure includes: 1-a pressure sensing unit, 2-a shell, 3-a touch screen, 4-a watchband and 5-a heart rate sensing unit.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present invention.
Example (b):
as shown in fig. 1, the wearable FFR value detection device includes a case 4 and a band 2, and further includes: the pressure sensing unit 1 consists of two pressure sensors which are back-to-back in the vertical direction; the heart rate sensing unit 5 comprises an LED lamp and a photoelectric detector and is arranged at the bottom of the shell; the processing unit is connected with the pressure sensor and the photoelectric detector and used for calculating blood pressure, heart rate and FFR value; and the touch screen 3 is connected with the processing unit and used for displaying required information.
The blood pressure detection of the embodiment is based on the measurement principle of a flat tension method, in two pressure sensors, one positioned at the lower part is used for sensing the pressure of artery pulsation, the other positioned at the upper part is used for sensing the pressure pressed by fingers, the pressure of the pulse pulsation is proportional to the blood pressure, therefore, the blood pressure can be calculated according to the pulse pulsation pressure after calibration, when the blood pressure detection device is used, the pressure sensing unit is placed on the surface of an artery of a wrist and is tightly attached to the skin, the pressure sensor at the upper side is pressed by a thumb, and at the moment, the processing unit can calculate the pulsation pressure and the thumb pressing pressure and then display the calculated pulsation pressure and the calculated pressure on the display unit. When the blood pressure is stably pressed for a certain time after a certain pressure is reached, the blood pressure value can be read, and the blood pressure value is the maximum value of the systolic pressure. Because a pressure sensor detects the pressure of the finger, the pressure of each finger pressing can be ensured to be consistent with the pressure during correction, the change of the blood pressure can be detected under the condition that other conditions are not changed, and the device can be calibrated once at intervals to ensure the accurate reading.
The heart rate detection of the embodiment is to perform heart rate detection by using a PPG (Photoplethysmography) pulse wave method, wherein the PPG is a method for performing heart rate measurement based on a principle that a blood volume changes with pulse pulsation through photoelectric detection. Optical heart rate sensing module through containing LED lamp and photoelectric detector is to wearing position emitted light signal and detect optical signal's reflection intensity of user to can obtain this user's rhythm of the heart after the reflection intensity change frequency that obtains the detection is handled.
In the embodiment, the corresponding relation between the fitting curves of the blood pressure and the heart rate of the wearer and the FFR value is imported into the processing unit in advance, and the FFR value can be obtained by directly calculating according to the formula after the blood pressure and the heart rate are detected, so that a complex algorithm is not needed, and the formula is not needed to be changed.
This embodiment is when using the finger to press pressure sensor and carry out blood pressure measurement, and heart rate sensing unit will hug closely skin together for it is more accurate to measure numerical value.
As shown in fig. 2 and 3, the side of the bottom of the casing close to the pressure sensing unit is an inclined plane, and the heart rate sensing unit is arranged in the inclined plane. Because skin has elasticity, when pressing pressure sensor, local skin is slightly sunken, and the casing opposite side can slightly perk, sets up the casing bottom and is close to the one side of pressure-sensitive cell as the inclined plane, can paste skin more easily.
The pressure sensing unit of this embodiment is connected through a plurality of soft bodys between with the casing, lays the wire in the body. Because the pressure sensing unit needs to be pressed when in use, the pressure sensing unit cannot be in hard connection with the shell, otherwise the effect of the pressure can be influenced. The soft tube body ensures the safety of the lead and cannot be influenced by the shell when being pressed.
The pressure sensor of the present embodiment is a piezoresistive sensor. The surface of the pressure sensor on the upper side of the pressure sensor is provided with a fingerprint-shaped groove.
In addition, the fitting curve mentioned in this embodiment is obtained by the following process: the user does CTA once in advance, calculates the FFR values of a plurality of points by using an FFR-CT method, for example, fixes other conditions, changes five or ten blood pressure values, calculates the corresponding FFR value, then fits a curve by taking the blood pressure as an abscissa and the FFR value as an ordinate according to the five or ten results, the curve equation is a unitary quartic equation which is a peculiar function of the user, records the equation and inputs the equation into the wearable device, and the wearable device can monitor the blood pressure in real time and substitute the monitored blood pressure into the equation, so that the FFR value under the blood pressure can be calculated quickly. Similarly, the heart rate is calculated in the same way, thus realizing the monitoring of the FFR. However, this process is only an application extension description and is not intended to limit the scope of the present disclosure.
The beneficial effects of this embodiment include: the blood pressure and the heart rate can be detected at any time according to requirements, the convenience and the rapidness are realized, and meanwhile, a hardware foundation is laid for portable monitoring of the FFR value.
Through the description of the above embodiments, those skilled in the art will understand that, for convenience and simplicity of description, only the division of the above functional modules is used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the above described functions.
Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a wearing formula FFR value detection device, includes the casing, its characterized in that still includes:
the pressure sensing unit consists of two pressure sensors which are back to back in the vertical direction;
the heart rate sensing unit comprises an LED lamp and a photoelectric detector and is arranged at the bottom of the shell;
the processing unit is connected with the pressure sensor and the photoelectric detector and used for calculating blood pressure, heart rate and FFR value;
and the display unit is connected with the processing unit and displays the required information.
2. The device of claim 1, wherein the bottom of the casing is provided with an inclined surface at a side close to the pressure sensing unit, and the heart rate sensing unit is disposed in the inclined surface.
3. A wearable FFR value detecting device according to claim 1 or 2, wherein the pressure sensing unit is connected to the housing through a plurality of flexible tubes, and wires are disposed in the tubes.
4. A wearable FFR value sensing device according to claim 1, wherein said pressure sensor is a piezoresistive sensor.
5. The device of claim 1, wherein the display unit is a touch screen.
6. The wearable FFR value detecting device according to claim 1, wherein a surface of the pressure sensor located on an upper side of the pressure sensor is provided with a fingerprint-like groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023249188.3U CN215227575U (en) | 2020-12-29 | 2020-12-29 | Wearable FFR value detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023249188.3U CN215227575U (en) | 2020-12-29 | 2020-12-29 | Wearable FFR value detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215227575U true CN215227575U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023249188.3U Active CN215227575U (en) | 2020-12-29 | 2020-12-29 | Wearable FFR value detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215227575U (en) |
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2020
- 2020-12-29 CN CN202023249188.3U patent/CN215227575U/en active Active
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