TWM650590U - Single-arm physiological signal measuring device - Google Patents

Abstract

A single-arm physiological signal measuring device includes a shell, a flexible electronic assembly and an air bag. The flexible electronic assembly is disposed in the shell and surrounds a space. The flexible electronic assembly includes a PPG module, an ECG module and a control module. The ECG module includes a first electrode and a second ECG electrode. The control module is electrically connected to the PPG module and the ECG module. The air bag is disposed between the shell and the flexible sensing assembly to push the flexible sensing assembly to change a size of the space. When the airbag is inflated, the PPG module, the first and the second ECG electrodes are pushed by the airbag and touch an arm, so that the PPG module measures a blood oxygen concentration of a user, The ECG module measures an ECG of the user, and the control module calculates a blood pressure of the user according to the blood oxygen concentration and the ECG.

Description

Single-arm physiological signal measurement device

The present invention relates to a measuring device, and in particular to a single-arm physiological signal measuring device.

The conventional method of measuring blood pressure is to tie a balloon to the arm and inflate it to compress the arm to obtain blood pressure information. Since this process causes discomfort to the user, the strap will be released after a single measurement. Only short-term blood pressure information can be obtained.

The present invention provides a single-arm physiological signal measurement device, which can conduct long-term physiological signal measurement using single-arm measurement.

The new type of single-arm physiological signal measuring device includes a shell, a flexible electronic component and an air bag. The flexible electronic component is arranged in the casing and surrounds a space. The flexible electronic component includes a photoplethysmography (PPG) module, an electrocardiography (ECG) module, and a control module. . The electrocardiogram module includes a first electrocardiogram electrode and a second electrocardiogram electrode. The control module is electrically connected to the photoplethysmography module and the electrocardiogram module. The airbag is disposed between the housing and the flexible electronic component to push the flexible electronic component to change the size of the space. An arm of a user is adapted to extend into the space. When the air bag is inflated, the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode are pushed by the air bag to contact the arm, so that the photoplethysmography module The method module measures the user's blood oxygen concentration, the electrocardiogram module measures the user's electrocardiogram, and the control module calculates the user's blood pressure based on the blood oxygen concentration and the electrocardiogram.

In one embodiment of the present invention, the above-mentioned flexible electronic component includes at least two hard circuit boards and at least one flexible circuit board or at least one flexible cable connected to the at least two hard circuit boards. The photoplethysmography module , the control module, the first electrocardiogram electrode and the second electrocardiogram electrode are arranged on at least two hard circuit boards, and the first electrocardiogram electrode and the second electrocardiogram electrode are arranged on two different ones of the at least two hard circuit boards.

In an embodiment of the present invention, the above-mentioned single-arm physiological signal measurement device further includes a soft layer, which is disposed on the surface of the flexible electronic component facing the space and covers at least two hard circuit boards and at least one flexible circuit board or It is at least one flexible cable. The soft layer includes a plurality of openings, and these openings expose the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode.

In an embodiment of the present invention, the above-mentioned flexible electronic component further includes a battery electrically connected to the control module, the photoplethysmography module and the electrocardiogram.

In an embodiment of the present invention, the above-mentioned airbag includes a plurality of bags evenly arranged and connected to each other, and the flexible electronic component includes a plurality of hard circuit boards, and the bags correspond to the hard circuit boards.

In an embodiment of the present invention, the above-mentioned airbag includes a bag, the flexible electronic component includes a plurality of hard circuit boards, and the bag corresponds to these hard circuit boards.

In an embodiment of the present invention, the projection of the flexible electronic component by the airbag covers the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode.

In an embodiment of the present invention, the above-mentioned shell includes an inflation port and a deflation port. The inflation port and the deflation port are connected to the air bag, and a one-way valve is provided between the inflation port and the air bag.

In an embodiment of the present invention, the above-mentioned single-arm physiological signal measuring device further includes an inflatable device. The inflatable device is detachably combined with the inflatable port, or the inflatable device is fixedly installed in the inflatable port.

In an embodiment of the present invention, the above-mentioned housing is in a C shape or an O shape.

Based on the above, the new single-arm physiological signal measuring device of the present invention changes the size of the space by disposing the air bag between the housing and the flexible electronic component to push the flexible electronic component. The user's arm is adapted to extend into the space surrounded by the flexible electronic component. When the air bag is inflated, the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode of the flexible electronic component are inflated by the air bag. Push and touch the arm, so that the photoplethysmography module measures the user's blood oxygen concentration, the electrocardiogram module of the flexible electronic component measures the user's electrocardiogram, and the control module determines the user's electrocardiogram based on the blood oxygen concentration and electrocardiogram. And the user's blood pressure is calculated. Compared with the conventional method of measuring blood pressure, which involves attaching a balloon to the arm and inflating it to compress the arm to obtain blood pressure information, this causes discomfort to the user and can only be measured for a short period of time. The air bag of the new single-arm physiological signal measurement device only needs to be inflated until the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode contact the arm to obtain blood oxygen concentration and electrocardiogram, and then the control module The blood pressure is calculated, which greatly improves the comfort of the user's measurement process and achieves long-term measurement results.

FIG. 1A is a three-dimensional schematic diagram of a single-arm physiological signal measuring device according to an embodiment of the present invention. Figure 1B is a schematic top perspective view of Figure 1A. It should be noted that, in order to clearly show the positions of the flexible electronic component 120 and the airbag 130, FIG. 1B presents the internal flexible electronic component 120 and the airbag 130 in a perspective manner.

Referring to FIGS. 1A and 1B , the single-arm physiological signal measurement device 100 of this embodiment includes a housing 110 , a flexible electronic component 120 and an air bag 130 . In this embodiment, the housing 110 is C-shaped. Of course, the shape of the housing 110 is not limited to this. In other embodiments, the housing 110 can also be in an O-shape or other shapes.

As can be seen from FIG. 1A , the housing 110 includes an inflation port 112 and a deflation port 114 . The inflation port 112 and the deflation port 114 are connected to the air bag 130 ( FIG. 1B ). In addition, as shown in FIG. 1B , the flexible electronic component 120 is disposed in the housing 110 and surrounds a space S. The airbag 130 is disposed between the housing 110 and the flexible electronic component 120 to push the flexible electronic component 120 to change the size of the space S.

FIG. 2A is a schematic diagram of the flexible electronic component of the single-arm physiological signal measurement device in FIG. 1A . FIG. 2B is a schematic diagram of the flexible electronic component of FIG. 2A being flattened. Please refer to FIGS. 2A and 2B . In this embodiment, the flexible electronic component 120 is bent along the shape of the housing 110 and also exhibits a C shape.

As shown in FIG. 2B , the flexible electronic component 120 includes a photoplethysmography (PPG) module 121 , an electrocardiography (ECG) module 122 and a control module 125 . The photoplethysmography module 121 is used to measure the user's blood oxygen concentration, and the electrocardiogram module 122 is used to measure the user's electrocardiogram. The photoplethysmography module 121 includes, for example, a light transmitter and a light receiver, and the electrocardiogram module 122 includes a first electrocardiogram electrode 123 and a second electrocardiogram electrode 124 .

The photoplethysmography module 121 includes, for example, a photodiode and two light-emitting diodes (LEDs), where the light-emitting diode system can be a green light-emitting diode or a red light-emitting diode. The photodiode is used to emit light into human tissue, while the photodiode is used to absorb the light reflected by human tissue and convert it into an electrical signal to express changes in blood volume in human tissue, that is, PPG signal.

The control module 125 is electrically connected to the photoplethysmography module 121 and the electrocardiogram module 122 . In this embodiment, the flexible electronic component 120 further includes a battery 128 that is electrically connected to the control module 125, the photoplethysmography module 121 and the electrocardiogram.

In this embodiment, the flexible electronic component includes at least two hard circuit boards 126 and at least one flexible circuit board or at least one flexible cable 127 connected to the at least two hard circuit boards 126 . The photoplethysmography module 121, the control module 125, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 are respectively arranged on at least two hard circuit boards 126. The first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 are disposed on two different ones of at least two hard circuit boards 126 so as to be separated by a larger distance to increase the detected signal vector difference.

Specifically, the flexible electronic component includes five hard circuit boards 126 and four flexible cables 127 connecting the five hard circuit boards 126 . The photoplethysmography module 121, the control module 125, the battery 128, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 are respectively provided on the five hard circuit boards 126. The hard circuit boards 126 are electrically connected to each other through the flexible cables 127 .

Of course, the number of hard circuit boards 126 and flexible cables 127 is not limited thereto. Some of the photoplethysmography module 121, the control module 125, the battery 128, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 can also be arranged on the same hard circuit board 126, and the positions of these components are not in the same direction. This is a limitation. In addition, the rigid circuit board 126 can provide good structural support for the above-mentioned components.

Of course, in other embodiments, the flexible electronic component 120 may not include the hard circuit board 126, the photoplethysmography module 121, the control module 125, the battery 128, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124. It can also be disposed on a flexible circuit board (not shown) and can correspond to the shape of the housing 110 .

FIG. 3A is a schematic diagram of the air bag of the single-arm physiological signal measurement device of FIG. 1A being flattened. Please refer to FIG. 3A . In this embodiment, the airbag 130 includes a plurality of bags 132 evenly arranged and connected to each other. The airbag port 134 is connected to the inflation port 112 ( FIG. 1A ) of the housing 110 and these bags 132 . Therefore, air can enter the bag 132 through the inflation port 112 and the airbag port 134 of the housing 110 .

In this embodiment, the positions of the pockets 132 correspond to the positions of the rigid circuit boards 126 (FIG. 2B). Such a design allows the bags 132 to directly push the corresponding hard circuit boards 126 when inflated, so that the components on the hard circuit boards 126 move. In particular, the photoplethysmography module 121, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 can move away from the housing 110 and contact the user's skin.

Of course, in other embodiments, the positions of the pockets 132 may also only correspond to the positions of a part of the hard circuit boards 126 , as long as the projection of the pockets 132 of the airbag 130 on the flexible electronic component 120 covers the light volume change. The tracing module 121, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 are sufficient.

3B is a schematic diagram of a flattened air bag of a single-arm physiological signal measuring device according to another embodiment of the present invention. Please refer to Figure 3B. The main difference between the airbag 130a of Figure 3B and the airbag 130 of Figure 3A is that in this embodiment, the airbag 130a includes a single bag 132, and this bag 132 corresponds to the hard circuit boards 126 (Fig. 2B) . Similarly, when the bag 132 of the air bag 130a is inflated, it can still achieve the effect of pushing the photoplethysmography module 121, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 to contact the user's skin.

FIG. 4 is a schematic diagram of the soft layer of the single-arm physiological signal measurement device in FIG. 1A being flattened. Referring to FIG. 1B and FIG. 4 , the single-arm physiological signal measuring device 100 further includes a soft layer 140 , which is disposed on the surface of the flexible electronic component facing the space S and covers the flexible electronic component 120 . Therefore, the soft layer 140 covers the hard circuit board 126 (Fig. 2B), the flexible cable 127 (Fig. 2B), the photoplethysmography module 121 (Fig. 2B), the control module 125 (Fig. 2B), and the battery 128 ( 2B), the first electrocardiogram electrode 123 (Fig. 2B) and the second electrocardiogram electrode 124 (Fig. 2B). When the single-arm physiological signal measuring device 100 performs measurement, the user's skin mainly contacts the soft layer 140, which can effectively improve the user's comfort.

Please refer to FIG. 2B and FIG. 4 at the same time. It can be seen that the soft layer 140 includes a plurality of openings 142 , and these openings 142 expose the photoplethysmography module 121 , the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 . Therefore, the photoplethysmography module 121, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 can directly contact the user's skin.

FIG. 5 is a schematic diagram of the inflator, one-way valve and air bag of the single-arm physiological signal measurement device in FIG. 1A. Please refer to FIG. 5 . In this embodiment, the single-arm physiological signal measuring device 100 may optionally include an inflator 150 . The inflator 150 may be an electric or manual inflator. The inflation device 150 is detachably coupled to the inflation port 112 . Alternatively, in one embodiment, the inflating device 150 can be fixedly mounted on the inflating port 112, that is, combined with the housing 110, to avoid the trouble of not finding the inflating device 150 during use.

The inflation device 150 can be connected to the inflation port 112, and a one-way valve 160 is disposed between the inflation port 112 and the air bag 130. To ensure the flow direction of the air, the air can smoothly enter the airbag 130 from the airbag port 134 . In addition, the airbag 130 is connected to the deflation port 114 (FIG. 1A). When the airbag 130 is to be deflated, the plug (not shown) on the deflation port 114 can be opened to deflate the airbag 130.

In this embodiment, the user's arm is adapted to extend into the space S (FIG. 1A) of the single-arm physiological signal measurement device 100. When the air bag 130 is inflated, the photoplethysmography module 121, the first electrocardiogram The electrode 123 and the second electrocardiogram electrode 124 are pushed by the air bag 130 and contact the arm, so that the photoplethysmography module 121 measures the user's blood oxygen concentration, and the electrocardiogram module 122 measures the user's electrocardiogram, and controls The module 125 estimates the user's blood pressure based on blood oxygen concentration and electrocardiogram.

The control module 125 can perform processing and calculation of blood pressure estimation through the built calculation model. For example, characteristic parameters are calculated for ECG signals and PPG signals. These characteristic parameters may include heart rate (HR), pulse arrival time (PAT), pulse interval (PPI) and pulse width (PW). The ECG signal and PPG signal waveform between every two heartbeats can calculate a value of PAT, HR, PPI and PW. Therefore, by detecting the ECG signal or PPG signal for a period of time, multiple characteristic parameter data can be obtained. Next, the user's reference blood pressure value (including systolic blood pressure and diastolic blood pressure) is input. This reference blood pressure value can be measured by the user using a home blood pressure monitor, or the user can input a normal blood pressure value. Then, the reference blood pressure value and these characteristic parameter data are brought into the calculation model, and the value of the correction coefficient of each characteristic parameter is solved by linear regression. This set of coefficients is obtained based on the subject's ECG signal and PPG signal and the reference blood pressure value. , thus containing physiological signal characteristics related to the subject. Then, continue to detect the ECG signal or PPG signal, and perform waveform analysis in the same manner to obtain the PAT, HR, PPI and PW values at this time. Then, the correction coefficient set is brought into the calculation model to calculate the subject's blood pressure.

That is to say, the single-arm physiological signal measurement device 100 continuously analyzes and calculates the waveform characteristics of the EEG signal and PPG signal by acquiring continuous ECG signals and PPG signals, thereby continuously estimating the blood pressure value of the subject.

Compared with the conventional method of measuring blood pressure, which is to obtain blood pressure information by strapping the air bag 130 to the arm and inflating it to compress the arm, this causes discomfort to the user and can only be measured for a short period of time. The air bag 130 of the single-arm physiological signal measurement device 100 of this embodiment only needs to be inflated until the photoplethysmography module 121, the first electrocardiogram electrode 123 and the second electrocardiogram electrode 124 contact the arm to obtain blood oxygen concentration and electrocardiogram. , and then the control module 125 calculates the blood pressure, which greatly improves the comfort of the user's measurement process and achieves long-term measurement results.

In other words, the user can wear the single-arm physiological signal measurement device 100 for a long time to obtain long-term physiological signal measurement results, obtain more accurate physiological signal information, and effectively avoid temporary stress during measurement. And affect the measured physiological signal information.

In addition, it is customary to obtain blood oxygen concentration at the fingertips, electrocardiograms at the chest, hands, and feet, and blood pressure at the arms, and to obtain these physiological signals in various parts of the body through a variety of devices. The single-arm physiological signal measuring device 100 of this embodiment can obtain multiple physiological signals such as blood oxygen concentration, electrocardiogram, and blood pressure in real time as long as it is placed on the user's arm. It is quite simple and convenient to use.

Furthermore, since the single-arm physiological signal measurement device 100 of this embodiment defines the space S through the hard shell 110, and uses inflatable means to make the photoplethysmography module 121, the first electrocardiogram electrode 123 and the third The two electrocardiogram electrodes 124 can stably contact the arm, and the user only needs to extend the arm into the space S. The single-arm physiological signal measurement device 100 of this embodiment does not require buckles or straps, and can be easily operated with one hand. , it is very convenient to use and will not loosen during measurement. Of course, in one embodiment, the single-arm physiological signal measurement device 100 of this embodiment can also be provided with buckles or straps, which is not limited to the figures.

To sum up, the new single-arm physiological signal measuring device of the present invention changes the size of the space by disposing the airbag between the housing and the flexible electronic component to push the flexible electronic component. The user's arm is adapted to extend into the space surrounded by the flexible electronic component. When the air bag is inflated, the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode of the flexible electronic component are inflated by the air bag. Push and touch the arm, so that the photoplethysmography module measures the user's blood oxygen concentration, the electrocardiogram module of the flexible electronic component measures the user's electrocardiogram, and the control module determines the user's electrocardiogram based on the blood oxygen concentration and electrocardiogram. And the user's blood pressure is calculated. Compared with the conventional method of measuring blood pressure, which involves attaching a balloon to the arm and inflating it to compress the arm to obtain blood pressure information, this causes discomfort to the user and can only be measured for a short period of time. The air bag of the new single-arm physiological signal measurement device only needs to be inflated until the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode contact the arm to obtain blood oxygen concentration and electrocardiogram, and then the control module The blood pressure is calculated, which greatly improves the comfort of the user's measurement process and achieves long-term measurement results.

S: space 100: Single-arm physiological signal measurement device 110: Shell 112:Inflation port 114: vent 120: Flexible electronic components 121: Photoplethysmography module 122: ECG module 123: First ECG electrode 124: Second ECG electrode 125:Control module 126:Hard circuit board 127:Soft cable 128:Battery 130, 130a: air bag 132:bag 134:Airbag port 140:Soft layer 142:Open your mouth 150:Inflatable device 160: One-way valve

FIG. 1A is a three-dimensional schematic diagram of a single-arm physiological signal measuring device according to an embodiment of the present invention. Figure 1B is a schematic top perspective view of Figure 1A. FIG. 2A is a schematic diagram of the flexible electronic component of the single-arm physiological signal measurement device in FIG. 1A . FIG. 2B is a schematic diagram of the flexible electronic component of FIG. 2A being flattened. FIG. 3A is a schematic diagram of the air bag of the single-arm physiological signal measurement device of FIG. 1A being flattened. 3B is a schematic diagram of a flattened air bag of a single-arm physiological signal measuring device according to another embodiment of the present invention. FIG. 4 is a schematic diagram of the soft layer of the single-arm physiological signal measurement device in FIG. 1A being flattened. FIG. 5 is a schematic diagram of the inflator, one-way valve and air bag of the single-arm physiological signal measurement device in FIG. 1A.

120: Flexible electronic components

121: Photoplethysmography module

122: ECG module

123: First ECG electrode

124: Second ECG electrode

125:Control module

126:Hard circuit board

127:Soft cable

128:Battery

Claims (10)

A single-arm physiological signal measurement device, including: a shell; A flexible electronic component is disposed in the housing and surrounds a space. The flexible electronic component includes: A photoplethysmography (PPG) module; An electrocardiography (ECG) module, including a first electrocardiogram electrode and a second electrocardiogram electrode; a control module electrically connected to the photoplethysmography module and the electrocardiogram module; and An airbag is disposed between the housing and the flexible electronic component to push the flexible electronic component and change the size of the space, wherein An arm of a user is adapted to extend into the space. When the airbag is inflated, the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode are pushed by the airbag to contact the arm. , so that the photoplethysmography module measures a blood oxygen concentration of the user, the electrocardiogram module measures an electrocardiogram of the user, and the control module calculates based on the blood oxygen concentration and the electrocardiogram Get the user's blood pressure. The single-arm physiological signal measurement device as claimed in claim 1, wherein the flexible electronic component includes at least two hard circuit boards and at least one flexible circuit board or at least one flexible cable connected to the at least two hard circuit boards, The photoplethysmography module, the control module, the first electrocardiogram electrode and the second electrocardiogram electrode are arranged on the at least two hard circuit boards, and the first electrocardiogram electrode and the second electrocardiogram electrode are arranged on the at least two hard circuit boards. Two different types of hard circuit boards. The single-arm physiological signal measurement device according to claim 2, further comprising a soft layer disposed on the surface of the flexible electronic component facing the space, covering the at least two hard circuit boards and the at least one flexible circuit board or It is the at least one flexible cable, and the soft layer includes a plurality of openings, and the openings expose the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode. The single-arm physiological signal measurement device as claimed in claim 1, wherein the flexible electronic component further includes a battery electrically connected to the control module, the photoplethysmography module and the electrocardiogram. The single-arm physiological signal measuring device as claimed in claim 1, wherein the air bag includes a plurality of bags evenly arranged and connected to each other, and the flexible electronic component includes a plurality of hard circuit boards, and the bags correspond to These hard circuit boards. The single-arm physiological signal measuring device as claimed in claim 1, wherein the air bag includes a bag, the flexible electronic component includes a plurality of hard circuit boards, and the bag corresponds to the hard circuit boards. The single-arm physiological signal measurement device as claimed in claim 1, wherein the projection of the airbag on the flexible electronic component covers the photoplethysmography module, the first electrocardiogram electrode and the second electrocardiogram electrode. The single-arm physiological signal measuring device as claimed in claim 1, wherein the housing includes an inflation port and a deflation port, the inflation port and the deflation port are connected to the air bag, and a one-way valve is provided between the inflation port and the deflation port. The area between the air bags. The single-arm physiological signal measuring device as claimed in claim 1 further includes an inflatable device that is detachably coupled to the inflatable port, or the inflatable device is fixed to the inflatable port. The single-arm physiological signal measuring device as claimed in claim 1, wherein the housing is in a C shape or an O shape.

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