CN219289449U - Blood pressure measuring equipment - Google Patents

Abstract

The application provides a blood pressure measurement equipment relates to biological information measurement technical field, can carry out the measurement of blood pressure through the finger, has good measurement accuracy, and uses the comfort level higher, wears to experience better. The blood pressure measuring device comprises a shell, an air bag arranged in the shell, an air pump connected with the air bag, a detection light source, a light receiver and a controller respectively connected with the air pump, the detection light source and the light receiver; the shell is provided with an opening, the air bag corresponds to the opening, the air pump inflates the air bag according to the control signal so as to apply pressure to the finger to be detected which stretches into the shell from the opening, the detection light source emits detection light towards the finger to be detected, and the light receiver receives the detection light which penetrates through the finger to be detected and transmits the detection light to the controller.

Description

Blood pressure measuring equipment

Technical Field

The application relates to the technical field of biological information measurement, in particular to blood pressure measurement equipment.

Background

The blood pressure of a human body refers to the pressure generated by the pulsating blood flow in the blood vessel to the blood vessel wall and is laterally perpendicular to the blood vessel wall, wherein the peak value of the pressure is a systolic pressure, which can be called high pressure, and the valley value of the pressure is a diastolic pressure, which can be called low pressure. Blood pressure is an important index for health monitoring, can reflect the health condition of human bodies, and is a closely focused index for middle-aged and elderly people, particularly hypertension patients, with the gradual importance of people on prevention, diagnosis and treatment of cardiovascular and cerebrovascular diseases in recent years.

Most of electronic sphygmomanometers in the market at present are designed based on the principle of an oscillography, wherein the oscillography is used for acquiring and recording pressure fluctuation synchronous with heart beat, namely pulse wave according to the relationship between the amplitude of the pulse wave and the pressure of a brachial artery blood vessel in the process that the brachial artery blood vessel is pressed by external force to block blood flow and then gradually depressurized to enable the blood flow to rush open the blood vessel again to flow. The electronic sphygmomanometer has the advantages of good measurement stability, simplicity in operation, convenience in use and the like.

The electronic sphygmomanometer in the prior art is mainly used for testing through an upper arm or a wrist, when the upper arm is used for measuring, the air bag is pressed to press the aorta to bring obvious uncomfortable feeling to a measurer, the measuring comfort level is poor, the measuring speed is low, the problem of noise exists, and the measurer can generate larger psychological burden to form poor wearing and using experience.

Some electronic sphygmomanometers in the prior art can measure through the finger tips, but because the measurement accuracy is poor, the electronic sphygmomanometers are usually matched and calibrated through the upper arm type sphygmomanometer, the measurement process is complex, and the measurement accuracy is difficult to ensure.

Disclosure of Invention

An aim at of this embodiment of the application provides a blood pressure measuring equipment, can carry out the measurement of blood pressure through the finger, has good measurement accuracy, and uses the comfort level higher, wears to experience better.

The embodiment of the application provides blood pressure measuring equipment, which comprises a shell, an air bag arranged in the shell, an air pump connected with the air bag, a detection light source, a light receiver and a controller respectively connected with the air pump, the detection light source and the light receiver; the shell is provided with an opening, the air bag corresponds to the opening, the air pump inflates the air bag according to the control signal so as to apply pressure to the finger to be detected which stretches into the shell from the opening, the detection light source emits detection light towards the finger to be detected, and the light receiver receives the detection light which penetrates through the finger to be detected and transmits the detection light to the controller.

Optionally, the air bag is fixed on the inner wall of the shell extending from the opening, the air bag comprises one air bag, the air bag is annularly arranged on the inner wall of the shell in a surrounding mode to form an inner surrounding space, and the air bag expands to compress the inner surrounding space.

Optionally, the air bags are fixed on the inner wall of the shell extending from the opening, the air bags comprise at least two air bags, and the expansion directions of the at least two air bags are opposite and the distance between the air bags and the opening is equal.

Optionally, the balloon is a latex balloon.

Optionally, the distance between the detection light source and the opening is between 2cm-4 cm.

Optionally, the detection light source is at least one of a red LED, a green LED, and an infrared LED.

Optionally, the two detection light sources include two detection light sources, the wavelength of light emitted by the two detection light sources is different, and the two detection light sources are arranged in parallel.

Optionally, a detection channel extending inwards from the opening is defined in the shell, and an inner wall of the shell at the bottom of the detection channel is an outwards protruding cambered surface.

Alternatively, an air bag, and an opposing detection light source and light receiver are provided in sequence on the detection channel extending inward from the opening.

Optionally, be provided with a plurality of end to end's backup pad in the casing, be formed with the atmospheric pressure chamber in the backup pad, the gasbag sets up in the backup pad inner wall, the atmospheric pressure chamber is located the detection passageway.

Optionally, an upper air pressure cavity plate and a lower air pressure cavity plate are further arranged on the two opposite support plates, the detection light source is arranged on the upper air pressure cavity plate, and the light receiver is arranged on the lower air pressure cavity plate; or, the detection light source is arranged on the lower air pressure cavity plate, and the light receiver is arranged on the upper air pressure cavity plate.

Optionally, a screen is further arranged on one side of the shell corresponding to the upper air pressure cavity plate, and the screen is electrically connected with the controller; and/or a control key is arranged on the shell and is electrically connected with the controller.

Optionally, the shell is a black shell, or the inner wall of the shell is provided with a light absorption layer; light transmission holes are arranged on the light paths corresponding to the detection light source and the light receiver on the supporting plate.

Optionally, a glass cover plate is arranged on the light hole in a sealing way.

Optionally, the blood pressure measuring device according to the embodiment of the application further includes an auxiliary handle, the auxiliary handle is connected to one side of the housing adjacent to the opening, the housing is fixed to the auxiliary handle through a buckle, and the auxiliary handle is used for being held by hand.

Optionally, the controller is a control circuit board, and the control circuit board is disposed inside the auxiliary handle.

Optionally, a battery cavity is further arranged in the auxiliary handle, and a battery arranged in the battery cavity is used for supplying power to the detection light source and the air pump.

The blood pressure measuring device comprises a shell, an air bag arranged in the shell, an air pump connected with the air bag, a detection light source, an optical receiver and a controller respectively connected with the air pump, the detection light source and the optical receiver, wherein the controller can control the air pump to charge and discharge air to the air bag, and the controller can control the light emission of the detection light source and the transmission, storage and analysis calculation of detection signals received by the optical receiver; the air pump is used for controlling the air pump to inflate the air bag to apply pressure to the finger to be detected stretching into the shell from the opening, the controller is used for controlling the air pump to inflate the air bag and simultaneously starting the detection light source to emit detection light towards the finger to be detected, the detection light irradiates the finger to be detected and is received by the light receiver after penetrating the finger to be detected, the finger to be detected is subjected to gradual expansion and increased compression by the air bag, the blood flow can be correspondingly changed, the light receiver is used for receiving and transmitting the information of the blood flow carried by the detection light penetrating the finger to be detected to the controller, and the controller can obtain accurate blood pressure measurement values through reading, analyzing and calculating the corresponding information in the detection light. In addition, the blood pressure measuring equipment of the embodiment of the application is small in structure, convenient to use, high in use comfort and good in wearing experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a blood pressure measurement device provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a blood pressure measurement device according to an embodiment of the present disclosure;

FIG. 3 is one of the internal structural diagrams of a blood pressure measuring device provided in an embodiment of the present application;

FIG. 4 is a second internal configuration diagram of a blood pressure measuring apparatus according to an embodiment of the present application;

FIG. 5 is a second schematic diagram of a blood pressure measurement device according to an embodiment of the present disclosure;

FIG. 6 is a third schematic diagram of a blood pressure measurement device according to an embodiment of the present disclosure;

fig. 7 is an exploded view of a blood pressure measuring device according to an embodiment of the present application.

Icon: 10-a housing; 11-opening; 12-cambered surface; 13-a support plate; 131-light holes; 14-an upper air pressure cavity plate; 15-a lower air pressure cavity plate; 20-an air bag; 40-detecting a light source; a 50-optical receiver; 60-a control circuit board; 70-screen; 80-control keys; 90-auxiliary handle; 91-cell cavity.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that is commonly put when the product of the application is used, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

It should also be noted that the terms "disposed," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically defined and limited; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the use demands of blood pressure measurement, the current commonly used noninvasive blood pressure measurement methods are mainly classified into mercury auscultation and oscillography. The oscillography is to obtain and record pressure fluctuation synchronized with heart beat, namely pulse wave, in the process of gradually decompressing and making blood flow to re-flush the blood vessel to flow after the brachial artery blood vessel is blocked by external force compression according to the hemodynamic principle of heart beat, and estimate the blood pressure according to the relation between the amplitude of pulse wave and the pressure at the brachial artery blood vessel. The oscillometric method is used for measuring the blood pressure, the measurement stability is good, the operation difficulty is low, and the use is convenient, but because the oscillometric method is mainly based on experience and statistical rules for judging the blood pressure value, a standardized algorithm is not provided, and larger deviation can be generated in use at times, the measurement accuracy is not widely accepted by medicine.

The mercury auscultation method is to gradually increase the pressure on the blood vessel and gradually reduce the pressure, so that the blood flow in the blood vessel is blocked by the pressure and then rushes open the blood vessel again along with the reduction of the pressure, when the blood flow rushes open the blood vessel again, a group of friction and impact sounds which are synchronous with the pulse and gradually weaken to disappear after the blood flow reopens the blood vessel can be heard through the stethoscope, and the koff sounds are obtained. The corresponding mercury pressure value when the Korotkoff sounds of the blood flow rushing the blood vessel again appear is the systolic pressure, and the corresponding mercury pressure value when the Korotkoff sounds gradually weaken and disappear is the diastolic pressure. The method is a currently accepted blood pressure measurement gold standard in medicine, but the application of the mercury auscultation method for measuring blood pressure requires an operator to observe the change of a mercury manometer while listening through a stethoscope, the operation difficulty is high when the Korotkoff sound is distinguished and the mercury pressure value is read, in addition, the mercury auscultation method usually needs to detect at the blood vessel of the brachial artery or the femoral artery, a cuff needs to be wrapped in advance, the great artery is pressed to bring obvious uncomfortable feeling in the process of pressing and blocking the blood vessel, and most people feel tension during measurement, so that a certain psychological burden is caused to a tester.

The embodiment of the application provides a blood pressure measuring device, as shown in fig. 1, which comprises a shell 10, an air bag 20 arranged in the shell 10, an air pump (not shown in fig. 1) connected with the air bag 20, a detection light source 40, a light receiver 50 and a controller respectively connected with the air pump, the detection light source 40 and the light receiver 50; the casing 10 is formed with an opening 11, the air bag 20 corresponds to the position of the opening 11, and is used for pressing the air bag 20 on the finger to be detected which stretches into the casing 10 from the opening 11, the air pump is used for inflating the air bag 20 according to the control signal so as to press the finger to be detected which stretches into the casing 10 from the opening 11, the detection light source 40 emits detection light towards the finger to be detected, and the light receiver 50 receives the detection light which penetrates through the finger to be detected and transmits the detection light to the controller.

The finger to be tested extending from the opening 11 may be a distal knuckle extending into the finger only according to different extending depths of the finger and different extending fingers, or may extend a part of a middle knuckle and/or at least a part of a proximal knuckle, for example, extend a thumb into the opening 11, or extend the thumb into the whole thumb, for example, or may extend an index finger into the opening 11, and extend the index finger into the first two knuckles only. In cooperation with the method, the finger to be tested can be pressed, for example, the whole thumb can be pressed, or the finger to be tested can be pressed at a certain knuckle position of the finger to be tested, for example, the proximal knuckle of the thumb or the middle knuckle of the index finger.

Further, the finger to be measured, which is inserted from the opening 11, is exemplified as a thumb, and the entire thumb is inserted into the opening 11. The light source 40 irradiates the finger to be measured, which may be a distal knuckle of the finger to be measured, and the light beam passing through the distal knuckle is received by the light receiver 50.

When the air pump is started to work, the air bag 20 is inflated to apply pressure to the finger to be tested in the shell 10, the pressure presses the blood vessel, the air bag 20 is controlled by the controller to pressurize the air pump at a constant speed, the pressure is continuously increased at a constant speed, the blood vessel of the finger to be tested is pressed to block the blood flow, the pressure is gradually reduced after the pressure reaches the level of ensuring the blood flow blocking, the blood vessel is flushed again until the blocked blood flow is in the blood vessel, and the blood flow pulsation in the blood vessel is recovered by strong fade. After the air pump works, the controller also controls the detection light source 40 to emit detection light towards the finger to be detected, the detection light passes through the finger to be detected and is received by the light receiver 50, the volume change of blood circulating in the blood vessel in the finger to be detected can be detected in the process that the detection light passes through the finger to be detected, the light receiver 50 converts the received detection light into a photoelectric signal, and the controller extracts, analyzes and calculates the pulse amplitude or the blood flow in the photoelectric signal to obtain the detected blood pressure value.

Wherein, the controller controls the operation of the air pump and the operation of the detection light source 40 respectively, that is, can set the air pump to start operating and make the detection light source 40 start to emit light, and start to receive the detection light from the light receiver 50, and can set the air pump to press the air bag 20 to the preset pressure intensity and restart the detection light source 40 and the light receiver 50, and can perform other forms of cooperation setting according to the detection range and the detection precision, which is not limited in this embodiment of the present application.

It should be noted that, the air pump can be used to inflate the air bag 20 gradually, and the specific inflation pressurization mode may be to directly control the equivalent of the air entering the air bag 20, or to control the pressurization speed of the air bag 20 by adjusting the inflation duty ratio of the air pump, or other similar control modes, so long as the inflation speed is ensured to be uniform as far as possible, so that the air bag 20 is pressurized at a uniform speed. In addition, in the embodiment of the present application, the manner of releasing the pressure to the air bag 20 is not particularly limited, and the air outlet port may be connected to the air bag 20 and controlled to be opened or closed by an electromagnetic valve.

The blood pressure measuring device provided by the embodiment of the application comprises a shell 10, an air bag 20 arranged in the shell 10, an air pump connected with the air bag 20, a detection light source 40, a light receiver 50 and a controller respectively connected with the air pump, the detection light source 40 and the light receiver 50, wherein the air pump can be controlled to charge and discharge air to the air bag 20 through the controller, and the controller can control the light emission of the detection light source 40 and the transmission, storage and analysis calculation of detection signals received by the light receiver 50; the shell 10 is provided with an opening 11, the air bag 20 corresponds to the opening 11, the air pump inflates the air bag 20 according to a control signal so as to press a finger to be detected which stretches into the shell 10 from the opening 11, the controller starts the detection light source 40 to work while controlling the air pump to inflate the air bag 20, the detection light source 40 emits detection light towards the finger to be detected, the detection light irradiates the finger to be detected and is received by the light receiver 50 after penetrating the finger to be detected, the blood flow of the finger to be detected is correspondingly changed in the process of being pressed by the gradual expansion of the air bag 20, the light receiver 50 receives and transmits the detection light penetrating the finger to be detected to the controller to carry information of the blood flow, and the controller can obtain accurate blood pressure measurement values through reading, analyzing and calculating the corresponding information in the detection light. In addition, the blood pressure measuring equipment of the embodiment of the application is small in structure, convenient to use, high in use comfort and good in wearing experience.

In one possible embodiment of the present application, as shown in fig. 1, the air bag 20 is fixed to the inner wall of the housing 10 extended from the opening 11, the air bag 20 includes one, the air bag 20 is annularly enclosed in the inner wall of the housing 10 to form an inner peripheral space, and the air bag 20 is inflated to compress the inner peripheral space.

As shown in FIG. 1, the air bag 20 comprises an air bag 20 which is arranged in an annular end-to-end communication manner, the annular outer side of the air bag 20 is fixed on the inner wall of the shell 10, and the air bag 20 is in a fixed state, so that the position stability of the air bag 20 in the process of inflation and deflation is ensured, and in use, the air bag 20 and fingers do not need to be bound and fixed, the fingers extend into the shell 10 from the opening 11, and can extend into the annular inner ring of the air bag 20, so that the determination of the measurement position is realized. After the air pump inflates the air bag 20, the air bag 20 expands to reduce the area of the annular inner ring and squeeze the space of the finger to be tested, so that pressure is applied to the finger extending into the annular inner ring, and pressure is applied to the finger to be tested.

In another possible embodiment of the present application, the air bag 20 is fixed to the inner wall of the housing 10 extending from the opening 11, and the air bag 20 includes at least two air bags 20, the expansion directions of which are opposite and the distance from the opening 11 is equal.

For example, the air bags 20 include at least two air bags 20, and the two air bags 20 are respectively fixed on the inner wall of the casing 10, and the air bags 20 are in fixed states, so that the position stability of the air bags 20 in the process of inflation and deflation is ensured, and the measuring position can be determined without binding and fixing the air bags 20 and fingers in use, and the fingers extend into the casing 10 from the opening 11.

The inflatable directions of the two air bags 20 are opposite, and the two air bags 20 are arranged at intervals, the distances between the two air bags 20 and the opening 11 are equal, so that fingers extending into the shell 10 through the opening 11 can just correspond to the space between the two air bags 20 in the shell 10, when the air pump inflates the air bags 20, the air bags 20 are gradually inflated, and as the inflatable directions of the two air bags 20 are opposite, the inflatable directions of the air bags 20 expand to squeeze the space of the finger to be tested, so that pressure is applied to the finger to be tested, the distances between the two opposite air bags 20 and the opening 11 are equal, and the pressure is applied to the same position of the finger to be tested by the opposite directions in the process of inflating the two air bags 20, so that the process of pressurizing and unloading the finger to be tested can be more balanced and more efficient.

Of course, in the embodiment of the present application, parameters such as a shape and a size of the air bag 20 are not specifically limited, the air bag 20 is used for applying pressure to the finger to be tested which is stretched into by the opening 11, and a person skilled in the art can perform corresponding setting and selection according to the space in the housing 10, so long as the setting of the air bag 20 is ensured to be capable of applying uniform pressure to the finger to be tested.

In one possible embodiment of the present application, the balloon 20 is a latex balloon.

Because the blood pressure measuring equipment of this application embodiment is used for oppressing and detecting the finger and realizing the measurement of blood pressure, and the finger is neural abundant and sensitive, and gasbag 20 adopts the latex gasbag, in the air pump work, the material of gasbag 20 inflation so that latex directly contacts with the finger of finger and exerts pressure, and the softness, elasticity, ductility and the skin-friendly characteristic of latex can guarantee as far as to keep comfortable at blood pressure measuring in-process of finger, avoids hardness great or the poor material of elasticity to cause the tenderness or the stinging of finger.

In a possible embodiment of the present application, the distance L between the detection light source 40 and the opening 11 is between 2cm and 4 cm.

As shown in fig. 1, the detection light source 40 emits detection light, and the detection light is received by the light receiver 50 after passing through the finger to be detected (as indicated by the direction of the single arrow in fig. 1), and it is generally required that the light transmission direction between the detection light source 40 and the light receiver 50 is at an angle or perpendicular to the extending direction of the finger. The distance L between the detection light source 40 and the opening 11 is set to be between 2cm and 4cm, so that the hand shape and the finger length of most testers can be met, after the finger to be detected stretches into the shell 10 from the opening 11, the finger to be detected irradiated by the detection light emitted by the detection light source 40 is positioned at the position of the distal knuckle, and the blood vessels at the position of the distal knuckle are rich and sensitive, so that the detection accuracy can be effectively improved after the detection light is irradiated and received. Specifically, the detection light source 40 may be provided at a position of 3.5cm inward from the opening 11 as a preferable detection position for the detection light.

In one possible embodiment of the present application, the detection light source 40 is at least one of a red LED, a green LED, and an infrared LED.

By way of example, the detection light source 40 is a red LED, which is a light emitting diode, and is a common active light emitting display device, the red LED is an LED capable of emitting a light beam in a red light band, and when the red light beam emitted from the red LED passes through biological tissue (finger tip), the absorption capacity of blood for red light is stronger than that of light beams in other bands, therefore, the red light beam emitted from the red LED is used as detection light, so that the signal intensity of a photoelectric signal converted after receiving is stronger, and the sensitivity to noise is reduced, thereby improving the accuracy of blood pressure detection.

In one possible embodiment of the present application, the detection light sources 40 include two detection light sources 40, where the wavelengths of the light emitted by the two detection light sources 40 are different, and the two detection light sources 40 are disposed in parallel. For example, the two detection light sources 40 may be a red LED and an infrared LED, respectively, which are juxtaposed.

When the detecting light source 40 further includes an infrared LED juxtaposed with the red LED, the controller controls the red LED and the infrared LED to emit detecting light beams together, and infrared light emitted from the infrared LED can detect blood oxygen saturation when passing through biological tissue, so that when the detecting light source 40 includes the red LED and the infrared LED juxtaposed, the light receiver 50 receives the red detecting light and the infrared detecting light and converts them into photoelectric signals, and can simultaneously measure two physiological characteristic indexes of blood pressure and blood oxygen saturation.

In one possible embodiment of the present application, as shown in fig. 1, a detection channel extending inward from an opening 11 is defined in a housing 10, and an inner wall of the housing 10 at a bottom of the detection channel presents an outwardly protruding arc surface 12.

As shown in fig. 2, the arrow in fig. 2 is a detection channel, after a finger extends into the detection channel from the opening 11, the finger can be placed inwards along the detection channel, and after the finger is placed in a position, an outwards protruding cambered surface 12 is formed on the inner wall of the shell 10 at the bottom of the detection channel, so that the finger or at least the end part of the finger has a certain bending activity space in the detection channel, thereby improving the comfort.

For example, when the length of the thumb that the user stretches into from the opening 11 is long, the finger portion that can stretch into the detection channel is limited, and when the inner wall of the housing 10 at the bottom of the detection channel is formed with the outwardly protruding arc surface 12, the detection channel can be appropriately prolonged through the outwardly protruding arc surface 12, so that the blood pressure measuring apparatus of the embodiment of the present application can be adapted to different users, and the detection light can be irradiated to a suitable position of the finger.

In one possible embodiment of the present application, the air bag 20, and the opposing detection light source 40 and light receiver 50 are disposed in sequence on the detection channel extending inward from the opening 11.

In this way, when the finger to be detected extends into the detection channel from the opening inwards, the air bag 20 and the opposite detection light source 40 and the light receiver 50 are sequentially arranged along the direction of the inward extension of the detection channel, wherein the opposite detection light source 40 and the light receiver 50 are opposite to each other in the vertical direction of the detection channel extending inwards from the opening 11, and the opposite arrangement can enable the detection light emitted by the detection light source 40 to be received by the light receiver 50 after passing through the finger to be detected. The air bag 20 is inflated to apply pressure to the proximal end of the finger to be detected, the opposite detection light source 40 and the light receiver 50 are positioned on the inner side of the air bag 20 facing the detection channel, the detection light source 40 emits detection light to the finger to be detected and is received by the light receiver 50, the detection light emitted by the detection light source irradiates the distal knuckle of the finger to be detected, the blood vessels of the distal knuckle of the finger are rich and sensitive, and the accuracy of the detected signals is better.

In one possible embodiment of the present application, as shown in fig. 3, a plurality of support plates 13 connected end to end are provided in the housing 10, an air pressure chamber is formed in the support plates 13, and an air bag 20 is provided on the inner wall of the support plates 13, and the air pressure chamber is located on the detection channel.

As shown in fig. 3, in the casing 10, an air pressure cavity is formed by enclosing the support plates 13 connected end to end, and the air bag 20 is disposed on the inner wall of the support plates 13, so that when the air pump works, the air bag 20 expands to form pressure on the air pressure cavity, the air pressure cavity is located on the detection channel, a finger stretches into the detection channel, the finger to be detected is located in the air pressure cavity, accurate compression of the air bag 20 is facilitated, and no influence is caused on other positions of the finger.

It should be noted that, the plurality of support plates 13 are used to enclose and form the air pressure cavity, which is an exemplary forming manner of the air pressure cavity in the embodiment of the present application, and for example, in the embodiment of the present application, other forms may also be adopted, for example, the plurality of support plates 13 are integrally arranged to form the air pressure cavity in fig. 3.

In one possible embodiment of the present application, as shown in fig. 3 and 4, an upper air pressure chamber plate 14 and a lower air pressure chamber plate 15 are further disposed on two opposite support plates 13, a detection light source 40 is disposed on the upper air pressure chamber plate 14, a light receiver 50 is disposed on the lower air pressure chamber plate 15 (not shown in fig. 5), or the detection light source 40 is disposed on the lower air pressure chamber plate 15 (not shown in fig. 5), and the light receiver 50 is disposed on the upper air pressure chamber plate 14. A light transmission hole 131 is provided in the support plate 13 in correspondence with the light paths of the detection light source 40 and the light receiver 50.

As shown in fig. 3, for example, an upper air pressure cavity plate 14 is fixedly arranged on a supporting plate 13, a detection light source 40 is arranged on the upper air pressure cavity plate 14, a lower air pressure cavity plate 15 is arranged on the other opposite supporting plate 13, and a light receiver 50 is arranged on the lower air pressure cavity plate 15, so that detection light emitted by the detection light source 40 irradiates a finger end to be detected and is received by the light receiver 50 after passing through the finger end to be detected, the light path of the detection light is not blocked or influenced by the supporting plate 13, and a light transmission hole 131 is arranged on the supporting plate 13 corresponding to the upper air pressure cavity plate 14 and the lower air pressure cavity plate 15, and the light transmission hole 131 provides avoidance for an active light path through which the detection light passes.

Of course, since the light holes 131 are mainly disposed so as to prevent the detection light from passing therethrough, when the support plate 13 is made of a transparent material, the support plate 13 will not block the light beam, or when the material used for the support plate 13 can transmit the detection light emitted by the detection light source 40, the light holes 131 may not be disposed.

The shape and size of the light holes 131 on the support plate 13 may be specifically set as required.

In one possible embodiment of the present application, as shown in fig. 4, a glass cover plate is provided on the light-transmitting hole 131 in a closed manner.

When guaranteeing to provide dodging for the initiative light path that detects light and pass through, seal and set up glass apron on light trap 131, glass apron can not influence the transmission of detecting light, and glass apron shutoff light trap 131 for keep better gas tightness in the casing 10, reduce external environment to the adverse effect of detection.

In one possible embodiment of the present application, as shown in fig. 5, a screen 70 is further provided on the side of the housing 10 corresponding to the upper air pressure chamber plate 14, and the screen 70 is electrically connected to the controller. And/or, as shown in fig. 6, a control key 80 is provided on the housing 10, and the control key 80 is electrically connected to the controller.

As shown in fig. 5 and 6, a screen 70 and a control key 80 are provided on the outer side of the housing 10 corresponding to the side of the upper pneumatic chamber plate 14, the screen 70 and the control key 80 are respectively electrically connected with a controller, and the blood pressure value obtained through analysis and processing by the controller can be transmitted to the screen 70 to be presented as a digital signal or an image signal, and the digital signal or the image signal is directly displayed through the screen 70. The control key 80 is electrically connected to the controller, and the user can trigger the controller to send working signals to the air pump, the detection light source 40, the light receiver 50, and the like by pressing the control key 80, so as to perform detection.

For example, after the user stretches the finger to be tested into the housing 10 through the opening 11, the user manually presses the control key 80, the control key 80 triggers the controller to send out working signals to the air pump and to the detection light source 40, the light receiver 50, and the like, the air pump is started to enable the air bag 20 to be inflated at a uniform speed to apply pressure to the finger to be tested, and the detection light is emitted through the detection light source 40, and the light receiver 50 receives the detection light.

In one possible embodiment of the present application, the housing 10 is a black housing, or the inner wall of the housing 10 is provided with a light absorbing layer.

Since the detection of the blood flow of the finger to be detected is required to be performed in the housing 10 by the detection light, if the external natural light enters the housing 10, the detection light will be affected, and even the noise in the photoelectric signal converted by the detection light may be too loud due to the intervention of the external natural light, so as to affect the accuracy of the detection. Therefore, the shell 10 can be provided with a black shell, the black can block external light beams in an absorbing mode, and external natural light cannot enter the shell 10 through the black shell, so that interference of ambient light on detection light signals is effectively reduced. Alternatively, a light absorbing layer may be disposed on the inner wall of the housing 10, and the light beam incident from the outside may be absorbed by the light absorbing layer, so as to avoid adverse effects on the active light path inside the housing 10.

By using the blood pressure measuring device disclosed by the embodiment of the application for measuring blood pressure, the shell 10 can be directly sleeved on the finger to be measured through the opening 11, and the finger to be measured stretches into the detection channel of the opening 11, so that measurement can be performed. In the measurement process, the mutual position relationship between the shell 10 and the finger to be measured needs to be kept stable, so as to avoid the influence of external shaking on the detection result.

In order to further maintain the relative positional relationship between the housing 10 and the finger to be measured as stable as possible without being affected by the external environment during blood pressure measurement, in a possible implementation manner of the present application, as shown in fig. 6, the blood pressure measurement device according to the embodiment of the present application further includes an auxiliary handle 90, where the auxiliary handle 90 is connected to a side of the housing 10 adjacent to the opening 11, and the housing 10 is fixed to the auxiliary handle 90 by a buckle, and the auxiliary handle 90 is used for holding by a hand.

As shown in fig. 6, the auxiliary handle 90 is connected to the housing 10, and the auxiliary handle 90 is connected to a side of the housing 10 adjacent to the opening 11, so that the auxiliary handle 90 can be held by the palm of the hand at a natural comfortable angle when a user inserts his/her finger through the opening 11 of the housing 10 for preliminary detection or for detection, and the auxiliary handle 90 and the housing 10 can be connected to each other at a certain angle based on an ergonomic design. The connection between the auxiliary handle 90 and the housing 10 shown in fig. 6 adopts a thumb as a structure for testing the fingers, when the thumb stretches into the opening 11, the other four fingers bend in a homeotropic manner so that the palm holds the auxiliary handle 90, and the stability of the thumb in the testing process can be ensured, so that the detection is not easily affected by shaking and the like. If other fingers are selected as the test fingers, the connection mode between the auxiliary handle 90 and the housing 10 can be correspondingly set, so long as the hand is convenient to grasp to stabilize the force.

Wherein, fix through the buckle between casing 10 and the supplementary handle 90, the installation and the dismantlement between casing 10 and the supplementary handle 90 are convenient for to the mode of buckle lock, in addition, in order to make stable fixed between the two, can also carry out supplementary connection with other detachable connection pieces.

In one possible embodiment of the present application, as shown in fig. 7, the controller is a control circuit board 60 that is disposed within the auxiliary handle 90.

As shown in fig. 7, the controller is the control circuit board 60, and the auxiliary handle 90 has a hollow structure, for example, the auxiliary handle 90 may have a two-piece structure that is shown in fig. 7 and is fastened to each other, and the fastened portion has a hollow structure, so that, on one hand, the overall mass of the blood pressure measurement device in the embodiment of the present application can be reduced, and on the other hand, the hollow structure of the auxiliary handle 90 can be used for setting other necessary components, so as to save the overall volume of the blood pressure measurement device. The control circuit board is arranged in a hollow structure inside the auxiliary handle 90, and is electrically connected with other components through wires so as to realize the communication and the receiving and transmitting of signals.

In one possible embodiment of the present application, as shown in fig. 7, a battery chamber 91 is further provided in the auxiliary handle 90, and a battery provided in the battery chamber 91 is used to supply power to the detection light source 40 and the air pump.

In order to further improve portability and convenience in use of the blood pressure measurement device of the embodiment of the present application, a battery cavity 91 may be further provided in the auxiliary handle 90, and a battery may be installed in the battery cavity 91 to supply power to the detection light source 40 and the air pump, and other electrical devices in the blood pressure measurement device. In this way, the blood pressure measuring device of the embodiment of the application can be conveniently carried and used under the condition that the battery is installed.

In the blood pressure measuring device of the embodiment of the present application, under the condition that the air bag 20 presses the finger to be measured, the light receiver 50 receives the detection light carrying the blood flow information of the finger to be measured, and the detection light is subjected to photoelectric conversion by the controller and then analyzed to obtain the blood pressure value, in addition, the blood pressure value can be calculated in cooperation with the oscillography, so that the measured blood pressure value can be mutually verified and corrected, and the measured blood pressure value is more accurate.

The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (16)

1. The blood pressure measuring device is characterized by comprising a shell, an air bag arranged in the shell, an air pump connected with the air bag, a detection light source, a light receiver and a controller respectively connected with the air pump, the detection light source and the light receiver;

the shell is provided with an opening, the air bag corresponds to the opening, the air pump inflates the air bag according to a control signal so as to press a finger to be detected which stretches into the shell from the opening, the detection light source emits detection light towards the finger to be detected, and the light receiver receives the detection light which penetrates through the finger to be detected and transmits the detection light to the controller.

2. The blood pressure measurement device of claim 1, wherein the balloon is fixed to an inner wall of the housing extending from the opening, the balloon including one, the balloon being annularly enclosed on the inner wall of the housing to form an inner peripheral space, the balloon being inflated to compress the inner peripheral space.

3. The blood pressure measurement device according to claim 1, wherein the balloon is fixed to an inner wall of the housing that extends from the opening, the balloon including at least two, the inflation directions of the at least two balloons being opposite and equidistant from the opening.

4. The blood pressure measurement device of claim 1, wherein a distance between the detection light source and the opening is between 2cm-4 cm.

5. The blood pressure measurement device of claim 1, wherein the detection light source is at least one of a red LED, a green LED, and an infrared LED.

6. The blood pressure measurement device of claim 5, wherein the detection light sources include two detection light sources having different wavelengths of light output therefrom, the two detection light sources being juxtaposed.

7. The blood pressure measurement device of claim 1, wherein a detection channel extending inwardly from the opening is defined in the housing, and the inner wall of the housing at the bottom of the detection channel is formed as an outwardly convex arcuate surface.

8. The blood pressure measurement device of claim 7, wherein the balloon, and the opposing detection light source and light receiver are disposed in sequence on the detection channel extending inwardly from the opening.

9. The blood pressure measurement device of claim 7, wherein a plurality of end-to-end support plates are provided in the housing, wherein an air pressure chamber is formed in the support plates, wherein the air bag is disposed on the inner wall of the support plates, and wherein the air pressure chamber is disposed on the detection channel.

10. The blood pressure measurement device of claim 9, wherein an upper air pressure chamber plate and a lower air pressure chamber plate are further provided on the two opposing support plates, the detection light source is provided to the upper air pressure chamber plate, and the light receiver is provided to the lower air pressure chamber plate; or, the detection light source is arranged on the lower air pressure cavity plate, and the light receiver is arranged on the upper air pressure cavity plate.

11. The blood pressure measurement device of claim 10, wherein a screen is further provided on a side of the housing corresponding to the upper air pressure chamber plate, the screen being electrically connected to the controller; and/or a control key is arranged on the shell and is electrically connected with the controller.

12. The blood pressure measurement device of claim 9, wherein the housing is a black housing or an inner wall of the housing is provided with a light absorbing layer; and a light transmission hole is arranged on the supporting plate and corresponds to the light paths of the detection light source and the light receiver.

13. The blood pressure measurement device of claim 12, wherein a glass cover plate is provided on the light transmission hole in a closed manner.

14. The blood pressure measurement device of any one of claims 1-13, further comprising an auxiliary handle attached to the housing on a side adjacent to the opening, the housing and the auxiliary handle being secured by a snap fit, the auxiliary handle being for a hand grip.

15. The blood pressure measurement device of claim 14, wherein the controller is a control circuit board disposed inside the auxiliary handle.

16. The blood pressure measurement device of claim 15, wherein a battery cavity is further provided within the auxiliary handle, a battery provided within the battery cavity for powering the detection light source and the air pump.

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