Physiological signal measurement device

Abstract

A physiological signal measurement device includes a base, a bladder device, a plurality of pressure sensors, and a plurality of elastic bodies. The bladder device is disposed on the base and includes a plurality of sub-bladders. The plurality of pressure sensors are respectively disposed on the plurality of sub-bladders. The plurality of elastic bodies are respectively disposed between the sub-bladders and the pressure sensors.

Description

TECHNICAL FIELD

[0001] The present application relates to a pressure measuring device, and in particular to a physiological signal measuring device. BACKGROUND

[0002] Traditional Chinese pulse diagnosis is to apply three fingers of the doctor to the pulse at the wrist and to apply pressure to sense the changes in pulse condition, and then to make a diagnosis by synthesizing all the information. However, the pressing force during pulse-taking and the judgment between different pulse conditions are mostly made by the doctor's personal experience. Since different doctors have different standards for pressing force, an objective and quantifiable pulse-taking instrument is needed. However, the current pulse-taking instrument cannot apply appropriate pressure to the different depths of the inch part, the joint part, and the inch part, resulting in a possible lack of measurement accuracy. SUMMARY

[0003] The present application provides a physiological signal measuring device that can apply appropriate pressure to different depths of pulse points, greatly improving the measurement sensitivity.

[0004] According to an embodiment of the present application, a physiological signal measuring device is provided, comprising a base, a gas bag device, a plurality of pressure sensors, and a plurality of elastic bodies. The gas bag device is arranged on the base and comprises a plurality of sub-gas bags. The plurality of pressure sensors are respectively arranged on the plurality of sub-gas bags. The plurality of elastic bodies are respectively arranged between each of the plurality of sub-gas bags and a corresponding one of the plurality of pressure sensors.

[0005] Based on the above, by arranging separate sub-gas bags and elastic bodies, the physiological signal measuring device provided by the embodiment of the present application can apply appropriate pressure to different depths of pulse points, each pressure sensor can correctly sense the pulse pressure of each pulse point, greatly improving the measurement sensitivity and shortening the measurement time.

[0006] In order to make the above features and advantages of the present application more obvious and easy to understand, the following embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1A A schematic view of the physiological signal measuring device of the embodiment of the present application when worn on the hand of a user, Figure 1B and Figure 1C A schematic view of the physiological signal measuring device of the embodiment of the present application when worn on the hand of a user, Figure 1A A cross-sectional schematic view of the physiological signal measuring device of the embodiment of the present application when worn on the hand of a user;

[0008] Figure 2A and Figure 2B A partial schematic view of the physiological signal measuring device of the embodiment of the present application;

[0009] Figure 3A schematic view of a physiological signal measurement device according to an embodiment of the present application;

[0010] Figure 4A A pulse pressure graph of a physiological signal measurement device according to a comparative example, Figure 4B A pulse pressure graph of a physiological signal measurement device according to an embodiment of the present application;

[0011] Figure 5A and Figure 5B A pulse pressure graph of a physiological signal measurement device according to an embodiment of the present application;

[0012] Figure 6A and Figure 6B A pulse wave signal graph of a physiological signal measurement device according to an embodiment of the present application.

[0013] Legend

[0014] 10: physiological signal measurement device

[0015] 100: base

[0016] 101, 102, 103: elastic body

[0017] 101S, 102S, 103S, 101S', 102S', 103S': pressure sensor

[0018] 110: housing

[0019] 200: air bag device

[0020] 201, 202, 203: sub air bag

[0021] 204: inflation / deflation port

[0022] 205: communication area

[0023] 300: drive system

[0024] 400: restraint

[0025] C1: first wing

[0026] C2: second wing

[0027] C3: connecting portion

[0028] W1, W2, W3, W4: spacer DETAILED DESCRIPTION

[0029] Referring to Figures 1A-1C , Figure 1A a top view schematic view of a physiological signal measurement device according to an embodiment of the present application when worn on a user's hand, Figure 1B and Figure 1C are illustratedFigure 1A A cross-sectional view of the physiological signal measurement device 10 worn on the hand of a user.

[0030] The physiological signal measurement device 10 includes a base 100, an airbag device 200, a driving system 300, and a restraint 400. The base 100 includes a first wing C1 and a second wing C2 oppositely arranged, and a connecting portion C3 connecting the first wing C1 and the second wing C2, and the first wing C1, the second wing C2, and the connecting portion C3 surround a receiving portion 110. The airbag device 200 is arranged in the receiving portion 110 to limit the expansion range of the airbag device 200 in the process of inflating the airbag device 200 to be described later.

[0031] In the present embodiment, the first wing C1, the second wing C2, and the connecting portion C3 of the base 100 are integrally formed to improve the structural strength, and the first wing C1 and the second wing C2 are arranged in parallel to be suitable for hand placement, but the present application is not limited thereto.

[0032] The physiological signal measurement device 10 further includes pressure sensors 101S, 102S, 103S and elastic bodies 101, 102, 103 driven by the driving system 300. The pressure sensor 101S is arranged on the elastic body 101, the pressure sensor 102S is arranged on the elastic body 102, and the pressure sensor 103S is arranged on the elastic body 103.

[0033] Please refer to Figure 2A and Figure 2B The airbag device 200 includes sub-airbags 201, 202, 203. The pressure sensor 101S is arranged on the sub-airbag 201, and the elastic body 101 is arranged between the sub-airbag 201 and the pressure sensor 101S. The pressure sensor 102S is arranged on the sub-airbag 202, and the elastic body 102 is arranged between the sub-airbag 202 and the pressure sensor 102S. The pressure sensor 103S is arranged on the sub-airbag 203, and the elastic body 103 is arranged between the sub-airbag 203 and the pressure sensor 103S.

[0034] The airbag device 200 further comprises a gas inlet 204, a communication area 205, and spacers W1, W2, W3, W4. The number of the gas inlet 204 can be one or more. The spacer W2 is arranged between the sub-airbag 201 and the sub-airbag 202, the spacer W3 is arranged between the sub-airbag 202 and the sub-airbag 203, the spacer W1 is arranged on the side of the sub-airbag 201 away from the spacer W2, and the spacer W4 is arranged on the side of the sub-airbag 203 away from the spacer W3. When the airbag device 200 is inflated through the gas inlet 204, due to the communication area 205 being in communication with the sub-airbags 201, 202, 203, the gas will enter the sub-airbags 201, 202, 203 through the communication area 205, respectively, so that the sub-airbags 201, 202, 203 assume the inflated state as shown. Figure 2B

[0035] Please refer to Figure 1B , Figure 1C and Figure 2B , as the airbag device 200 and the pressure sensors 101S, 102S, 103S and the elastic bodies 101, 102, 103 arranged in the accommodating portion 110, when the airbag device 200 is inflated through the gas inlet 204 by the driving system 300, so that the sub-airbags 201, 202, 203 assume the inflated state, the expansion range of the airbag device 200 will be limited by the base 100, so that the inflated airbag device 200 can exert pressure on the user's hand.

[0036] It should be particularly pointed out that the physiological signal measurement device 10 of the embodiment of the present application arranges the pressure sensors 101S, 102S, 103S on the separate elastic bodies 101, 102, 103 and the separate sub-airbags 201, 202, 203, respectively, so that the pressure sensors 101S, 102S, 103S can be respectively attached to contact three points on the hand, and the pressure is concentratedly applied on the three points, without being dispersed to other positions, achieving the effect of sensitive measurement. Specifically, please refer to Figure 1B , Figure 2B and Figure 3 , in some embodiments, the physiological signal measurement device 10 can be implemented as a sphygmomanometer, and as shown in Figure 3 , is worn on the user's hand by the restraint member 400 (for example, an elastic band) to measure the pulse pressure of the wrist pulse, wherein the pressure sensor 101S is used to measure the "cun" part, the pressure sensor 102S is used to measure the "guan" part, and the pressure sensor 103S is used to measure the "duan" part, but the physiological signal measurement device 10 of the present application is not limited to measuring the wrist pulse.

[0037] ​It should be particularly noted that since the corresponding pulse points of the pressure sensors 101S, 102S, 103S can be at different depths, the sub-air bags 201, 202, 203 are configured such that when the sub-air bags 201, 202, 203 are inflated to the same pressure, the heights of the sub-air bags 201, 202, 203 relative to the base 100 can be different, and the deeper the pulse point, the higher the height of the corresponding sub-air bag 201, 202, or 203, so as to ensure that each pulse point is subjected to an appropriate amount of pressure, and the pressure sensors 101S, 102S, 103S can all adhere to the hand to accurately sense the pulse pressure. Figure 3 Taking the pulse measurement at the wrist as an example, since the ulnar part is deeper in the hand than the radial part and the carpal part, the heights of the sub-air bags 201 and 203 relative to the base 100 are configured to be greater than the height of the sub-air bag 202 relative to the base 100, so as to ensure that the pressure sensors 101S, 102S, 103S can all correctly sense the pulse pressure. In an embodiment, the heights h1 and h3 of the sub-air bags 201 and 203 relative to the base 100 are 1.1-1.5 times the height h2 of the sub-air bag 202 relative to the base 100, and the single inflation and deflation port 204 can achieve the effect of adhesion and sensitive measurement, but the present application is not limited to the above height ratio.

[0038] Referring to Figure 4A and Figure 4B , Figure 4A a pulse pressure graph of a physiological signal measurement device according to a comparative example is shown, Figure 4B a pulse pressure graph of a physiological signal measurement device according to an embodiment of the present application is shown, in which the horizontal axis is time and the vertical axis is the air pressure in the sub-air bag.

[0039] In Figure 4A the comparative example, the physiological signal measurement device (not shown) includes pressure sensors 101S', 102S', 103S', which differ from the physiological signal measurement device 10 of the present application in that the heights of the corresponding sub-air bags of the pressure sensors 101S', 102S', 103S' are the same. When the physiological signal measurement device of this comparative example measures the pulse pressure of the wrist pulse, the pressure sensors 101S', 102S', 103S' obtain sufficient pulse pressure data at points A', B', and C' on the pulse pressure graph and end the measurement. It can be seen that in the measurement curve of the pressure sensor 101S', the amplitude of each pulse is small, which causes the pressure sensor 101S' to need a longer sensing time to collect sufficient pulse pressure data, resulting in a maximum interval of 12 seconds between the three time points corresponding to points A', B', and C', which lengthens the overall measurement time of the physiological signal measurement device.

[0040] Next, refer to Figure 4BBecause the pressure sensors 101S, 102S, and 103S of the physiological signal measurement device 10 of the present invention are disposed on separate sub-airbags 201, 202, and 203, and the sub-airbags 201, 202, and 203 have different heights corresponding to the depths of the ulnar, guan, and cun regions, appropriate pressure can be applied to the ulnar, guan, and cun regions respectively, and the pressure sensors 101S, 102S, and 103S can respectively sense the pulse pressure of the ulnar, guan, and cun regions without the situation of unclear or insufficient pulse pressure data prolonging the sensing time. Therefore, when the pressure sensors 101S, 102S, and 103S obtain sufficient pulse pressure data at points A, B, and C on the pulse pressure curve and end the measurement, the maximum interval between the three time points corresponding to points A, B, and C is only about 7 seconds, compared to Figure 4A The comparative example shown significantly shortens the overall measurement time of the physiological signal measurement device.

[0041] Simultaneously refer to Figure 3 , Figure 5A and Figure 5B ,in Figure 5A and Figure 5B Pulse pressure curves of a physiological signal measuring device according to an embodiment of the present invention are illustrated. Curve I represents the physiological signal measuring device 10 without elastomers 101, 102, and 103. Curve II represents the physiological signal measuring device 10 with elastomers 101, 102, and 103, each elastomer having a thickness of 2.5 mm and a hardness of 50 HA. Curve III represents the physiological signal measuring device 10 with elastomers 101, 102, and 103, each elastomer having a thickness of 4.5 mm and a hardness of 10 HA.

[0042] like Figure 5A As shown, when the physiological signal measuring device 10 is equipped with elastomers 101, 102, and 103, and each elastomer has a thickness of 2.5 mm and a hardness of 50 HA (i.e., curve II), the amplitude of each pulse wave is larger than that without elastomers (curve I), and the maximum amplitude can reach 15.32 mmHg. In contrast, the maximum amplitude of curve I is only 12.88 mmHg. Similarly, as... Figure 5B As shown, when the physiological signal measuring device 10 is equipped with elastomers 101, 102, and 103, and each elastomer has a thickness of 4.5 mm and a hardness of 10 HA (i.e., curve III), the amplitude of each pulse wave is larger than that in the case without elastomers (curve I), and the maximum amplitude can reach 15.76 mmHg, which is significantly greater than the maximum amplitude of curve I.

[0043] Please refer to again Figure 6A as well as Figure 6B ,in Figure 6A The illustration shows the relationship with Figure 5A andFigure 5B the pulse wave signal graph corresponding to curve I in FIG. 1, Figure 6B the pulse wave signal graph corresponding to curve II in FIG. 2, Figure 5A the pulse wave signal graph corresponding to curve III in FIG. 3, Figure 5B the pulse wave signal graph corresponding to curve III in FIG. 3, wherein the vertical axis is relative pressure (arbitrary unit). It can be seen that, in the case where no elastomer is provided as shown in FIG. 4, Figure 6A the pulse wave signal graph corresponding to curve I in FIG. 1, Figure 6B the pulse wave signal graph corresponding to curve I in FIG. 1, Figure 6B the pulse wave signal graph corresponding to curve I in FIG. 1,

[0044] In summary, by providing elastomers 101, 102, 103 with appropriate thickness and hardness between the sub-pneumatic bladders 201, 202, 203 and the pressure sensors 101S, 102S, 103S, the pressure from the sub-pneumatic bladders 201, 202, 203 can be more concentratedly applied to each pulse point of the user, increasing the amplitude of the measured pulse wave, and also enabling more accurate measurement of the slight fluctuation in each pulse wave, greatly improving the measurement sensitivity.

[0045] According to some embodiments of the present application, the hardness of each elastomer 101, 102, 103 can be less than or equal to 50 HA. In some preferred embodiments, the hardness of each elastomer 101, 102, 103 is less than or equal to 10 HA. According to some embodiments of the present application, the thickness of each elastomer 101, 102, 103 can be less than or equal to 5 mm. In some preferred embodiments, the thickness of each elastomer 101, 102, 103 is less than or equal to 2 mm.

[0046] In summary, by providing discrete sub-pneumatic bladders and elastomers, the physiological signal measurement device according to the embodiments of the present application can apply appropriate pressure to pulse points with different depths, and each pressure sensor can adhere to the skin to correctly sense the pulse pressure of each pulse point, greatly improving the measurement sensitivity and shortening the measurement time.

Claims

1. A physiological signal measuring device, comprising: Base; An airbag device, disposed on the base, includes multiple sub-airbags; Multiple pressure sensors are respectively configured on the multiple sub-airbags; as well as Multiple elastomers are disposed between each of the multiple sub-airbags and a corresponding one of the multiple pressure sensors, wherein the hardness of the elastomers is less than or equal to 50HA.

2. The physiological signal measuring device as claimed in claim 1, wherein the thickness of the plurality of elastomers is less than or equal to 5 mm.

3. The physiological signal measuring device as described in claim 1, wherein the plurality of sub-airbags are interconnected.

4. The physiological signal measuring device as claimed in claim 1, wherein when the plurality of sub-airbags are at the same inflation pressure, the heights of the plurality of sub-airbags relative to the base are different.

5. The physiological signal measuring device as claimed in claim 4, wherein the plurality of sub-airbags includes a first sub-airbag, a second sub-airbag, and a third sub-airbag arranged sequentially on the base, wherein when the first sub-airbag to the third sub-airbag are under the same inflation pressure, the height of the first sub-airbag and the third sub-airbag relative to the base is greater than the height of the second sub-airbag relative to the base.

6. The physiological signal measuring device as claimed in claim 5, wherein the height of the first sub-airbag and the third sub-airbag relative to the base is 1.1 to 1.5 times the height of the second sub-airbag relative to the base.

7. The physiological signal measuring device of claim 1, wherein the base includes a first wing and a second wing arranged opposite to each other, and a connecting portion connecting the first wing and the second wing, and the first wing, the second wing and the connecting portion surround to form a receiving portion, wherein the airbag device, the plurality of pressure sensors and the plurality of elastomers are disposed in the receiving portion.

8. The physiological signal measuring device as claimed in claim 7, wherein the first wing, the second wing, and the connecting portion are integrally formed.

9. The physiological signal measuring device of claim 7, wherein the first wing and the second wing are arranged in parallel.

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