A pressure pulse wave sensor

Abstract

The application discloses a pressure pulse wave sensor, which comprises a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit comprises a first pressure sensing plane, and the second pressure sensing unit comprises a second pressure sensing plane; the first pressure sensing plane and the second pressure sensing plane are located in different planes and cannot be completely overlapped through plane transformation; the two pressure sensing planes simultaneously measure pressure; when the pressure pulse wave data measured by the first pressure sensing plane and the second pressure sensing plane in one pulse cycle is the same, it is indicated that the pressure pulse wave sensor is pressed to the position of an arterial blood vessel, the contact surface of the arterial blood vessel and the first pressure sensing unit is equal to or greater than the first pressure sensing plane, and the contact surface of the arterial blood vessel and the second pressure sensing unit is equal to or greater than the second pressure sensing plane. The pressure pulse wave sensor is provided with two pressure sensing planes in different planes, and detection can be rapidly realized in at least one pulse wave cycle, so that the detection success rate and detection efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of pressure sensors, and more specifically to a pressure pulse wave sensor that uses the tension method to detect arterial pressure pulse waves. Background Technology

[0002] The pressure pulse wave contains a wealth of information about human health. The arterial tension method is a highly effective non-invasive method for detecting the pressure exerted on the vessel walls by blood flow in arteries. Furthermore, calculating blood pressure using the pressure pulse wave combines the accuracy and continuity of invasive blood pressure measurement while avoiding the risks of infection, thromboembolism, trauma, and even death from infection associated with invasive procedures. It also offers the comfort and speed of non-invasive blood pressure measurement. The pressure pulse wave sensor, which detects pressure pulse waves using the tension method, is one of its key components.

[0003] Existing pressure pulse wave sensors, although equipped with multiple pressure-sensing planes, have these planes located on the same plane and possess identical area and shape. During detection, these multiple pressure-sensing planes are used for positional error correction; that is, multiple planes simultaneously detect the pressure signal at the test site. Based on the detection results of each plane, a specific plane is selected for subsequent pressure pulse wave detection. This selected plane then detects the pressure pulse signal for at least two pulse wave cycles. Only if the pressure pulse signal from these two cycles is identical is the current pressure pulse wave signal adopted. This method suffers from low success rate and low efficiency. Furthermore, the comparison of data from at least two pulse wave cycles increases the detection time, increasing the chance of interference introduced during this period due to sensor slippage relative to the test site, thus increasing the probability of errors and making it difficult to guarantee successful detection. Summary of the Invention

[0004] This invention provides a pressure pulse wave sensor to solve the problems of low detection success rate and low detection efficiency.

[0005] In one embodiment, a pressure pulse wave sensor is provided:

[0006] The device includes a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery. The first pressure-sensing plane and the second pressure-sensing plane are located in different planes, and the first pressure-sensing plane and the second pressure-sensing plane cannot completely overlap each other through plane transformation. The pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first pressure-sensing plane and the second pressure-sensing plane, and compare the pressure pulse wave data detected by the first pressure-sensing plane and the second pressure-sensing plane within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0007] In one embodiment: the first pressure-sensitive plane and the second pressure-sensitive plane have a plane angle α1, where 0° < α1 < 180°; or,

[0008] When detecting the pressure pulse wave of the superficial artery, the first pressure-sensing plane and the second pressure-sensing plane have a plane angle β1, where 0° < β1 < 180°.

[0009] In one embodiment, the first pressure-sensitive plane and the second pressure-sensitive plane are parallel to each other.

[0010] In one embodiment: the first pressure sensing unit and the second pressure sensing unit are arranged in a row; or, the first pressure sensing unit and the second pressure sensing unit are located in different rows.

[0011] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery; the first pressure-sensing plane and the second pressure-sensing plane are in the same plane, and the first pressure-sensing plane and the second pressure-sensing plane have different shapes and / or different areas, and the first pressure-sensing plane and the second pressure-sensing plane cannot completely overlap each other through translation transformation; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first pressure-sensing plane and the second pressure-sensing plane, and compare the pressure pulse wave data detected by the first pressure-sensing plane and the second pressure-sensing plane within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0012] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery; the first pressure-sensing plane and the second pressure-sensing plane are in the same plane, and the first pressure-sensing plane and the second pressure-sensing plane have the same non-circular shape, the same area, and different rotation angles, and the first pressure-sensing plane and the second pressure-sensing plane cannot completely overlap each other through translation transformation; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first pressure-sensing plane and the second pressure-sensing plane, and compare the pressure pulse wave data detected by the first pressure-sensing plane and the second pressure-sensing plane within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0013] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first pressure-sensing plane facing a superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery; the first pressure-sensing plane and the second pressure-sensing plane are in the same plane, and the first pressure-sensing plane and the second pressure-sensing plane have the same non-circular shape, the same area, and the same rotation angle; at least two first pressure sensing units are arranged in a row, and the at least two first pressure sensing units share a common edge; at least two first pressure-sensing planes are included, and the two first pressure-sensing planes are completely overlapped by translation along the shortest straight line; the second pressure-sensing plane cannot be completely overlapped with the first pressure-sensing plane by translation along a line perpendicular to the straight line; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first pressure-sensing plane and the second pressure-sensing plane, and compare the pressure pulse wave data detected by the first pressure-sensing plane and the second pressure-sensing plane within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0014] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery; the first pressure-sensing plane and the second pressure-sensing plane are in the same plane, and the first pressure-sensing plane and the second pressure-sensing plane have the same circle and the same area; at least two first pressure sensing units are arranged in a row, and the at least two first pressure sensing units share a common edge; at least two first pressure-sensing planes are included, and the two first pressure-sensing planes are completely overlapped by translating along the shortest straight line; the second pressure-sensing plane cannot be completely overlapped with the first pressure-sensing plane by translating along a line perpendicular to the straight line; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first pressure-sensing plane and the second pressure-sensing plane, and compare the pressure pulse wave data detected by the first pressure-sensing plane and the second pressure-sensing plane within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0015] In one embodiment: the first pressure sensing unit is adjacent to the second pressure sensing unit;

[0016] Alternatively, the first pressure sensing unit and the second pressure sensing unit share a common edge.

[0017] Alternatively, it may include at least two of the first pressure sensing units arranged in a row, the at least two of the first pressure sensing units having a common edge;

[0018] Alternatively, it may include at least two second pressure sensing units arranged in a row, the at least two second pressure sensing units having a common edge.

[0019] In one embodiment: the first pressure sensing unit is adjacent to the second pressure sensing unit.

[0020] In one embodiment, the system further includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to detect the pressure pulse wave signal of the superficial artery by directly or indirectly compressing the superficial artery through the pressure plane.

[0021] In one embodiment: the first pressure sensing unit and / or the second pressure sensing unit includes a MEMS pressure sensing unit;

[0022] And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

[0023] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first planar pressure-sensing area facing the superficial artery, and the second pressure sensing unit includes a second planar pressure-sensing area facing the superficial artery; the first and second planar pressure-sensing areas are used to generate changes in electrical parameters due to compressive strain; the first and second planar pressure-sensing areas are located in different planes, and the first and second planar pressure-sensing areas cannot completely overlap each other through planar transformation; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first and second planar pressure-sensing areas, and compare the pressure pulse wave data detected by the first and second planar pressure-sensing areas within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0024] In one embodiment: the first planar pressure-sensing area and the second planar pressure-sensing area have a planar angle α2, where 0° < α2 < 180°; or, when detecting the pressure pulse wave of the superficial artery, the first planar pressure-sensing area and the second planar pressure-sensing area have a planar angle β2, where 0° < β2 < 180°.

[0025] In one embodiment: the first planar pressure-sensitive area and the second planar pressure-sensitive area are parallel to each other.

[0026] In one embodiment: the first pressure sensing unit and the second pressure sensing unit are arranged in a row; or, the first pressure sensing unit and the second pressure sensing unit are located in different rows.

[0027] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first planar pressure-sensing area facing the superficial artery, and the second pressure sensing unit includes a second planar pressure-sensing area facing the superficial artery; the first and second planar pressure-sensing areas are used to generate changes in electrical parameters due to compressive strain; the first and second planar pressure-sensing areas are located in the same plane, and have different shapes and / or different areas, and cannot completely overlap through translation transformation; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first and second planar pressure-sensing areas, and compare the pressure pulse wave data detected by the first and second planar pressure-sensing areas within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0028] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first planar pressure-sensing area facing the superficial artery, and the second pressure sensing unit includes a second planar pressure-sensing area facing the superficial artery. The first and second planar pressure-sensing areas are used to generate changes in electrical parameters due to compressive strain. The first and second planar pressure-sensing areas are located in the same plane, and have the same non-circular shape, the same area, and different rotation angles. The first and second planar pressure-sensing areas cannot completely overlap each other through translation transformation. The pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first and second planar pressure-sensing areas, and compare the pressure pulse wave data detected by the first and second planar pressure-sensing areas within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0029] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first planar pressure sensing area facing a superficial artery, and the second pressure sensing unit includes a second planar pressure sensing area facing the superficial artery; the first and second planar pressure sensing areas are used to generate changes in electrical parameters due to compressive strain; the first and second planar pressure sensing areas are located in the same plane, and have the same non-circular shape, the same area, and the same rotation angle; including at least two of the first pressure sensing units arranged in a row. The pressure sensing unit includes at least two first pressure sensing units sharing a common edge; it includes at least two first planar pressure sensing areas, which are completely overlapped by translation along the shortest straight line; the second planar pressure sensing area cannot completely overlap with the first planar pressure sensing area by translation along a line perpendicular to the straight line; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first planar pressure sensing area and the second planar pressure sensing area, and compare the pressure pulse wave data detected by the first planar pressure sensing area and the second planar pressure sensing area within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0030] In one embodiment, a pressure pulse wave sensor is provided, comprising a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first planar pressure-sensing area facing a superficial artery, and the second pressure sensing unit includes a second planar pressure-sensing area facing the superficial artery; the first and second planar pressure-sensing areas are used to generate changes in electrical parameters due to compressive strain; the first and second planar pressure-sensing areas are located in the same plane, and the first and second planar pressure-sensing areas have the same circle and the same area; including at least two of the first pressure sensing units arranged in a row, at least The two first pressure sensing units share a common edge; each includes at least two first planar pressure sensing areas, which are completely overlapped by translation along the shortest straight line; the second planar pressure sensing area cannot completely overlap with the first planar pressure sensing area by translation along a line perpendicular to the straight line; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first and second planar pressure sensing areas, and compare the pressure pulse wave data detected by the first and second planar pressure sensing areas within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery.

[0031] In one embodiment: the first pressure sensing unit is adjacent to the second pressure sensing unit;

[0032] Alternatively, the first pressure sensing unit and the second pressure sensing unit share a common edge.

[0033] Alternatively, it may include at least two of the first pressure sensing units arranged in a row, the at least two of the first pressure sensing units having a common edge;

[0034] Alternatively, it may include at least two second pressure sensing units arranged in a row, the at least two second pressure sensing units having a common edge.

[0035] In one embodiment: the first pressure sensing unit is adjacent to the second pressure sensing unit.

[0036] In one embodiment, the system further includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to detect the pressure pulse wave signal of the superficial artery by directly or indirectly compressing the superficial artery through the pressure plane.

[0037] In one embodiment: the first pressure sensing unit and / or the second pressure sensing unit includes a MEMS pressure sensing unit;

[0038] And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

[0039] The pressure pulse wave sensor in the above embodiment includes a first pressure-sensing plane and a second pressure-sensing plane. These two planes are located in different planes and cannot be completely overlapped through planar transformation. Both pressure-sensing planes simultaneously measure pressure. When the pressure pulse wave data measured by the two pressure-sensing planes for one pulse cycle are identical, it indicates that the pressure pulse wave sensor has effectively compressed the artery. The contact area between the artery and the first pressure-sensing unit is equal to or larger than the first pressure-sensing plane, and the contact area between the artery and the second pressure-sensing unit is equal to or larger than the second pressure-sensing plane. In other words, this pressure pulse wave sensor, with its two different pressure-sensing planes, can quickly achieve detection within at least one pulse wave cycle, improving the detection success rate and efficiency. Attached Figure Description

[0040] Figure 1 This is a top view of a pressure pulse wave sensor in one embodiment;

[0041] Figure 2 This is a side view of a pressure pulse wave sensor in one embodiment;

[0042] Figure 3This is a schematic diagram of the structure of the first pressure sensing unit and the second pressure sensing unit in one embodiment;

[0043] Figure 4 This is a schematic diagram of the structure of a plurality of first pressure sensing units and a plurality of second pressure sensing units in one embodiment;

[0044] Figure 5 This is a schematic diagram of the structure of the first pressure sensing unit and the second pressure sensing unit in one embodiment;

[0045] Figure 6 This is a side view of the first pressure sensing unit and the second pressure sensing unit in one embodiment;

[0046] Figure 7 This is a side view of the first pressure sensing unit and the second pressure sensing unit in use in one embodiment.

[0047] Figure 8 This is a side view of the first pressure sensing unit, the second pressure sensing unit, the third pressure sensing unit, and the fourth pressure sensing unit in one embodiment.

[0048] Figure 9 This is a top view of the first pressure sensing unit, the second pressure sensing unit, the third pressure sensing unit, and the fourth pressure sensing unit in one embodiment.

[0049] Figure 10 This is a side view showing the usage status of the first pressure sensing unit, the second pressure sensing unit, the third pressure sensing unit, and the fourth pressure sensing unit in one embodiment.

[0050] Figure 11 This is a side view of a pressure pulse wave sensor in one embodiment;

[0051] Figure 12 This is a schematic diagram of the structure of the first pressure sensing unit and the second pressure sensing unit in one embodiment;

[0052] Figure 13 This is a schematic diagram of the structure of a plurality of first pressure sensing units and a plurality of second pressure sensing units in one embodiment;

[0053] Figure 14 This is a layout diagram of the first pressure-sensing plane and the second pressure-sensing plane in one embodiment;

[0054] Figure 15 This is a layout diagram of the first pressure-sensing plane and the second pressure-sensing plane in one embodiment;

[0055] Figure 16 This is a layout diagram of the first pressure-sensing plane and the second pressure-sensing plane in one embodiment;

[0056] Figure 17 This is a layout diagram of the first pressure-sensing plane and the second pressure-sensing plane in one embodiment;

[0057] Figure 18 This is a layout diagram of the first pressure-sensing plane and the second pressure-sensing plane in one embodiment;

[0058] Figure 19 This is a layout diagram of the first pressure-sensing plane and the second pressure-sensing plane in one embodiment;

[0059] Figure 20 This is a layout diagram of the first pressure-sensing plane and the second pressure-sensing plane in one embodiment;

[0060] Figure 21 This is a layout diagram of the first pressure-sensing plane and the second pressure-sensing plane in one embodiment;

[0061] Figure 22 This is a top view of a pressure pulse wave sensor in one embodiment;

[0062] Figure 23 This is a side view of a pressure pulse wave sensor in one embodiment;

[0063] Figure 24 This is a schematic diagram of the structure of the first pressure sensing unit and the second pressure sensing unit in one embodiment;

[0064] Figure 25 This is a schematic diagram of the structure of a plurality of first pressure sensing units and a plurality of second pressure sensing units in one embodiment;

[0065] Figure 26 This is a schematic diagram of the structure of the first pressure sensing unit and the second pressure sensing unit in one embodiment;

[0066] Figure 27 This is a side view of the first pressure sensing unit and the second pressure sensing unit in one embodiment;

[0067] Figure 28 This is a side view of the first pressure sensing unit and the second pressure sensing unit in use in one embodiment.

[0068] Figure 29 This is a side view of the first pressure sensing unit, the second pressure sensing unit, the third pressure sensing unit, and the fourth pressure sensing unit in one embodiment.

[0069] Figure 30 This is a top view of the first pressure sensing unit, the second pressure sensing unit, the third pressure sensing unit, and the fourth pressure sensing unit in one embodiment.

[0070] Figure 31This is a side view showing the usage status of the first pressure sensing unit, the second pressure sensing unit, the third pressure sensing unit, and the fourth pressure sensing unit in one embodiment.

[0071] Figure 32 This is a side view of a pressure pulse wave sensor in one embodiment;

[0072] Figure 33 This is a schematic diagram of the structure of the first pressure sensing unit and the second pressure sensing unit in one embodiment;

[0073] Figure 34 This is a schematic diagram of the structure of a plurality of first pressure sensing units and a plurality of second pressure sensing units in one embodiment;

[0074] Figure 35 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0075] Figure 36 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0076] Figure 37 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0077] Figure 38 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0078] Figure 39 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0079] Figure 40 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0080] Figure 41 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0081] Figure 42 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0082] Figure 43 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0083] Figure 44 This is a layout diagram of the first planar pressure-sensing area and the second planar pressure-sensing area in one embodiment;

[0084] The accompanying diagrams are labeled as follows:

[0085] 1-First pressure sensing unit; 11-First pressure sensing plane; 12-First plane pressure sensing area;

[0086] 2-Second pressure sensing unit; 21-Second pressure sensing plane; 22-Second plane pressure sensing area;

[0087] 3-Base, 31-Wire;

[0088] 4-Pressure-conducting adhesive;

[0089] 5-Flexible components;

[0090] 6-Wrist;

[0091] 7-Third pressure sensing unit; 71-Third pressure sensing plane; 72-Third plane pressure sensing area;

[0092] 8-Fourth pressure sensing unit, 81-Fourth pressure sensing plane, 82-Fourth plane pressure sensing area. Detailed Implementation

[0093] This application employs a solution different from existing technologies. The pressure pulse wave sensor of this application has at least two pressure-sensing planes, which are used to simultaneously detect pressure pulse wave signals. The two pressure-sensing planes cannot completely overlap through planar transformation or translation transformation; the two pressure-sensing planes measure pressure simultaneously. When the pressure pulse wave data measured by the two pressure-sensing planes for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has compressed the artery to the correct position. The contact area between the artery and the first pressure sensing unit is equal to or larger than the first pressure-sensing plane, and the contact area between the artery and the second pressure sensing unit is equal to or larger than the second pressure-sensing plane. In other words, this pressure pulse wave sensor uses two different pressure-sensing planes, enabling rapid detection within one pulse wave cycle, thus improving the detection success rate and efficiency.

[0094] This application can employ various methods to ensure that at least two pressure-sensing planes cannot completely overlap after planar transformation or translation. For example, the at least two pressure-sensing planes can be located in different planes, or the at least two pressure-sensing planes can be located in the same plane and have different shapes, different areas, different rotation angles, or be staggered. Staggered arrangement means that two pressure-sensing planes with the same shape, area, and rotation angle are staggered perpendicular to the length direction of the superficial artery; that is, the line connecting the centers of the two pressure-sensing planes is not parallel to the length direction of the superficial artery.

[0095] It should be noted that in this application, the pressure sensing unit is fixed to the base, and its pressure sensing plane cannot be moved; the description of using plane transformation or translation transformation does not mean that the two pressure sensing planes can be transformed or translated, but rather that the differences between the two pressure sensing planes are described by the fact that the plane transformation or translation transformation cannot completely overlap. These differences include differences in shape, area, and rotation angle.

[0096] The following detailed description, in conjunction with the accompanying drawings, illustrates specific embodiments. Similar elements in different embodiments are referred to by related, similar element designations. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0097] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0098] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0099] Example 1:

[0100] Please refer to Figures 1 to 4In this embodiment, a pressure pulse wave sensor is provided, which includes at least one first pressure sensing unit 1 and one second pressure sensing unit 2. The pressure pulse wave sensor may also include a base 3, on which the first pressure sensing unit 1 and the second pressure sensing unit 2 are disposed. The first pressure sensing unit 1 and the second pressure sensing unit 2 are disposed at different spatial positions on the base 3, for example, side-by-side. This side-by-side arrangement may include parallel or non-parallel side-by-side arrangement. The base 3 may also have multiple first pressure sensing units 1 and multiple second pressure sensing units 2, with the multiple first pressure sensing units 1 arranged in a first column and the multiple second pressure sensing units 2 arranged in a second column.

[0101] The first pressure sensing unit 1 and the second pressure sensing unit 2 can be electrically connected to the base 3 via wires 31. The first pressure sensing unit 1 includes a first pressure-sensing plane 11 facing away from the base 3, and the second pressure sensing unit 2 includes a second pressure-sensing plane 21 facing away from the base 3. Both the first pressure-sensing plane 11 and the second pressure-sensing plane 21 face the superficial artery and are used to compress the superficial artery. The compression of the superficial artery by the first pressure-sensing plane 11 and the second pressure-sensing plane 21 can detect the pressure pulse wave signal of the compressed superficial artery. The first pressure-sensing plane 11 and the second pressure-sensing plane 21 are used to generate changes in electrical parameters due to compressive strain in order to acquire the pressure pulse wave signal of the superficial artery.

[0102] The first pressure sensing unit 1 and the second pressure sensing unit 2 may include a MEMS pressure sensing unit, or one of the first pressure sensing unit 1 and the second pressure sensing unit 2 may include a MEMS pressure sensing unit while the other includes other pressure sensing units, both of which can realize the detection of pressure pulse waves in superficial arteries. The inclusion of a MEMS pressure sensing unit in the first pressure sensing unit 1 and the second pressure sensing unit 2 is a preferred embodiment.

[0103] In one embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 can be resistive pressure sensing units, capacitive pressure sensing units, or other types of pressure sensing units. For example, both the first pressure sensing unit 1 and the second pressure sensing unit 2 can be resistive pressure sensing units, or both can be capacitive pressure sensing units, or one of the first pressure sensing units 1 and the second pressure sensing unit 2 can be a resistive pressure sensing unit and the other a capacitive pressure sensing unit. Resistive pressure sensing units, capacitive pressure sensing units, or other types of pressure sensing units can all achieve pressure pulse wave detection of superficial arteries.

[0104] In this embodiment, by changing the spatial positions of the first pressure sensing unit 1 and the second pressure sensing unit 2, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 cannot completely overlap. When the first pressure-sensing plane 11 and the second pressure-sensing plane 21 simultaneously compress the superficial artery for detection, they compress different positions of the superficial artery. Furthermore, in the initial stage of detection, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 detect different pressure pulse wave data. If different pressures are detected, as the pressure pulse wave sensor further compresses the superficial artery, when the first pressure-sensing plane 11 and the second pressure-sensing plane 21 detect the same pressure pulse wave data for one pulse cycle, it is determined that the pressure pulse wave sensor has compressed the artery to the correct position, and a portion of the artery is compressed into a plane. This pressure data is determined to be the data required for detection, and the pressure data is output as a pressure pulse wave signal. In other words, the pressure pulse wave sensor in this embodiment can accurately measure the pressure pulse wave data of the superficial artery by comparing the pressure-sensing planes of the two pressure sensing units within one pulse wave cycle. In other embodiments, multiple pulse wave cycles can be measured during the measurement process to obtain more accurate data. For example, two pressure sensing units can first compare the data within each pulse wave cycle and then average the results of each cycle comparison; or, two pressure sensing units can first detect the data within multiple pulse wave cycles respectively to obtain the average value and then compare the two.

[0105] In this embodiment, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are located in different planes, so that in the initial stage of measurement, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 squeeze the superficial artery at different depths or angles, obtaining different pressure pulse wave data. As the pressure pulse wave sensor further squeezes the superficial artery, when the first pressure-sensing plane 11 and the second pressure-sensing plane 21 detect the same pressure pulse wave data for one pulse cycle, it is determined that the pressure pulse wave sensor has squeezed the artery to the correct position, and a part of the artery is compressed into a plane. The pressure data is determined to be the data required for detection, and the pressure data is output as a pressure pulse wave signal.

[0106] Therefore, placing the first pressure-sensing plane 11 and the second pressure-sensing plane 21 in different planes enables the measurement of one pulse wave cycle. The first pressure-sensing plane 11 and the second pressure-sensing plane 21 can have the same or different areas, and the same or different shapes. Furthermore, the first pressure-sensing unit 1 and the second pressure-sensing unit 2 can be arranged in a row, or they can be located in different rows. That is, in this embodiment, as long as the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are located in different planes, whether they have the same shape, the same area, or are located in the same row does not affect the measurement of the first pressure-sensing plane 11 and the second pressure-sensing plane 21.

[0107] In this embodiment, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 being in different planes includes the following situations:

[0108] Please refer to Figure 3 and Figure 4 In the first scenario, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 are parallel to each other, and there is a height difference between them. In other words, the distances between the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 relative to the base 3 are different, and the distances between the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 relative to the superficial artery are also different during measurement preparation. During measurement, the pressure-sensitive plane closer to the superficial artery contacts the artery first, and the pressure-sensitive plane farther from the artery contacts it later. Specifically, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 press the superficial artery at the same angle during measurement.

[0109] Please refer to Figure 5 The second case: The first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 have a plane angle α1, 0° < α1 < 180°; the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 are located on two different planes, and there is a certain angle between the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21. During measurement, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 squeeze the superficial artery at different angles.

[0110] Please refer to Figure 6 and Figure 7 In the third scenario: when detecting the pressure pulse wave of the superficial artery, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 have a planar angle β1, where 0° < β1 < 180°; that is, when the pressure pulse wave of the superficial artery is not detected, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 can be located on the same plane. The first pressure sensing unit 1 and the second pressure sensing unit 2 are connected by a flexible member 5, which can be a flexible PFC, or the first pressure sensing unit 1 and the second pressure sensing unit 2 can be disposed on a flexible substrate 3. After compression, the first pressure sensing unit 1 and the second pressure sensing unit 2 can adapt to the shape of the wrist 6, and the flexible connection deforms, so that the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are located on different planes; it should be noted that Figure 7 This is an illustrative diagram and not a view at full scale.

[0111] Please refer to Figure 8 , Figure 9 and Figure 10In the third case, the pressure pulse wave sensor includes multiple pressure sensing units. For example, the pressure pulse wave sensor includes a first pressure sensing unit 1, a second pressure sensing unit 2, a third pressure sensing unit 7, and a fourth pressure sensing unit 8. These units are sequentially and spaced apart on the flexible member 5. The third pressure sensing unit 7 has a third sensing plane 71, and the fourth pressure sensing unit 8 has a fourth sensing plane 81. When not measuring, the first pressure sensing plane 11, the second pressure sensing plane 21, the third sensing plane 71, and the fourth sensing plane 81 are all in the same plane. Figure 8 and Figure 9 As shown; during the measurement process, the first pressure sensing unit 1, the second pressure sensing unit 2, the third pressure sensing unit 7, and the fourth pressure sensing unit 8 can adapt to the shape of the wrist 6 after being squeezed, and the flexible connection deforms. The first pressure sensing plane 11, the second pressure sensing plane 21, the third sensing plane 71, and the fourth sensing plane 81 are located on different planes, as shown. Figure 10 As shown. Among them, the first pressure sensing unit 1, the second pressure sensing unit 2, the third pressure sensing unit 7 and the fourth pressure sensing unit 8 are provided with electrodes on the side near the flexible member 5, and these sensing units are electrically connected to the flexible member 5 through the electrodes.

[0112] In this embodiment, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are located in different planes and cannot completely overlap through plane transformation. This results in different initial pressure pulse wave data detected by the two pressure-sensing planes when they simultaneously measure pressure. When the pressure pulse wave data measured by the first pressure-sensing plane 11 and the second pressure-sensing plane 21 for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has compressed the artery to its proper position, and a portion of the artery has been flattened. In other words, this pressure pulse wave sensor, with its two pressure-sensing planes in different planes, can quickly detect the pressure pulse wave using the arterial tension method within one pulse wave cycle, improving detection efficiency.

[0113] Example 2:

[0114] This embodiment provides a pressure pulse wave sensor, which differs from the first embodiment above in that: the first pressure-sensing plane 11 and the second pressure-sensing plane 21 in this embodiment are located in the same plane, and the first pressure-sensing plane 11 and the second pressure-sensing plane 21 have different shapes and / or different areas.

[0115] Please refer to Figures 11 to 13 In this embodiment, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 are located in the same plane.

[0116] The first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 also have different shapes and / or different areas, such that the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 cannot completely overlap each other when translated in the plane.

[0117] In this embodiment, the pressure pulse wave sensor further includes a pressure conductive adhesive 4. All the first pressure-sensing planes 11 and the second pressure-sensing planes 21 are covered with pressure conductive adhesive 4. The surface of the pressure conductive adhesive 4 facing away from the first pressure-sensing planes 11 and the second pressure-sensing planes 21 forms a pressure plane. The pressure plane is used to directly or indirectly compress the superficial arteries, and the pressure conductive adhesive 4 is used to transmit pressure to the first pressure-sensing planes 11 and the second pressure-sensing planes 21.

[0118] In this embodiment, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 have different shapes and / or different areas, including the following cases:

[0119] Please refer to Figure 14 In the first case: the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 have different shapes and the same area;

[0120] Please refer to Figure 15 The second case: the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 have the same shape but different areas;

[0121] Please refer to Figure 16 The third case is that the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 have different shapes and different areas.

[0122] In this embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 can be arranged adjacent to each other, and a gap can be provided between the first pressure sensing unit 1 and the second pressure sensing unit 2, so that the first pressure sensing plane 11 and the second pressure sensing plane 21 are located in the same column.

[0123] In one embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 may also share a common edge line, and the first pressure sensing unit 1 and the second pressure sensing unit 2 may be attached to each other. The first pressure sensing plane 11 and the second pressure sensing plane 21 may have a shorter gap, or the first pressure sensing plane 11 and the second pressure sensing plane 21 may be connected, so that more complete first pressure sensing planes 11 and second pressure sensing planes 21 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0124] In one embodiment, at least two first pressure sensing units 1 can be provided, and the at least two first pressure sensing units 1 can be arranged in a row. The first pressure sensing units 1 share a common boundary with each other, and the multiple first pressure sensing planes 11 have a shorter spacing or the multiple first pressure sensing planes 11 are connected, so that more complete first pressure sensing planes 11 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0125] In one embodiment, at least two second pressure sensing units 2 can be provided, and the at least two second pressure sensing units 2 can be arranged in a row. The second pressure sensing units 2 share a common boundary with each other, and the multiple second pressure sensing planes 21 have a shorter spacing or the multiple second pressure sensing planes 21 are connected, so that more complete second pressure sensing planes 21 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0126] In this embodiment, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are located in the same plane. During measurement, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 will simultaneously contact the superficial artery. However, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 have different shapes and / or different areas. The first pressure-sensing plane 11 and the second pressure-sensing plane 21 cannot completely overlap each other during translational transformation within the plane. This results in the two pressure-sensing planes detecting different initial pressure pulse wave data when simultaneously sensing pressure. When the pressure pulse wave data measured by the first pressure-sensing plane 11 and the second pressure-sensing plane 21 for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has compressed the artery into place, and a part of the artery has been compressed into a plane. In other words, this pressure pulse wave sensor sets up two pressure-sensing planes with different shapes or areas, which can quickly realize the detection of pressure pulse waves by the arterial tension method within one pulse wave cycle, improving detection efficiency.

[0127] Example 3:

[0128] This embodiment provides a pressure pulse wave sensor, which differs from the first embodiment above in that: the first pressure-sensing plane 11 and the second pressure-sensing plane 21 in this embodiment are located in the same plane, and the first pressure-sensing plane 11 and the second pressure-sensing plane 21 have the same non-circular shape, the same area, and different rotation angles.

[0129] Please refer to Figure 17 In this embodiment, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 have the same non-circular shape, the same area, and different rotation angles. For example, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 are squares, and the rotation angle between the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 is equal to 45°.

[0130] In this embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 can be arranged adjacent to each other.

[0131] In one embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 may also share a common edge line, and the first pressure sensing unit 1 and the second pressure sensing unit 2 may be attached to each other. The first pressure sensing plane 11 and the second pressure sensing plane 21 may have a shorter gap, or the first pressure sensing plane 11 and the second pressure sensing plane 21 may be connected, so that more complete first pressure sensing planes 11 and second pressure sensing planes 21 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0132] In one embodiment, at least two first pressure sensing units 1 can be provided, and the at least two first pressure sensing units 1 can be arranged in a row. The first pressure sensing units 1 share a common boundary with each other, and the multiple first pressure sensing planes 11 have a shorter spacing or the multiple first pressure sensing planes 11 are connected, so that more complete first pressure sensing planes 11 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0133] In one embodiment, at least two second pressure sensing units 2 can be provided, and the at least two second pressure sensing units 2 can be arranged in a row. The second pressure sensing units 2 share a common boundary with each other, and the multiple second pressure sensing planes 21 have a shorter spacing or the multiple second pressure sensing planes 21 are connected, so that more complete second pressure sensing planes 21 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0134] In this embodiment, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are located in the same plane. During measurement, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 will simultaneously contact the superficial artery. However, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 have different rotation angles, and their translational transformations within the plane cannot completely overlap. This results in the two pressure-sensing planes detecting different initial pressure pulse wave data when simultaneously measuring pressure. When the pressure pulse wave data measured by the first pressure-sensing plane 11 and the second pressure-sensing plane 21 for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has compressed the artery into place, and a portion of the artery has been compressed into a plane. In other words, this pressure pulse wave sensor, with two pressure-sensing planes at different rotation angles, can quickly detect the pressure pulse wave of the arterial tension method within one pulse wave cycle, improving detection efficiency.

[0135] Example 4:

[0136] This embodiment provides a pressure pulse wave sensor, which differs from the first embodiment described above in that: the first pressure-sensing plane 11 and the second pressure-sensing plane 21 in this embodiment are located in the same plane, and the first pressure-sensing plane 11 and the second pressure-sensing plane 21 have the same non-circular shape, the same area, and the same rotation angle, and include at least two first pressure-sensing planes 11. The two first pressure-sensing planes 11 are completely overlapped by translating along the shortest straight line, while the second pressure-sensing plane 21 cannot be completely overlapped with the first pressure-sensing plane 11 by translating along a line perpendicular to the line.

[0137] In this embodiment, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 have the same non-circular shape, the same area, and the same rotation angle. For example, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 are squares, and the rotation angle between the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 is equal to 0°.

[0138] The pressure pulse wave sensor includes at least two first pressure sensing units 1 and one second pressure sensing unit 2. The two first pressure sensing units 1 are arranged in a row, and the second pressure sensing unit 2 is located in a different row from the first pressure sensing units 1. This results in the pressure pulse wave sensor including at least two first pressure-sensing planes 11 and one second pressure-sensing plane 21. The two first pressure-sensing planes 11 are arranged in a row, and the second pressure-sensing plane 21 is located in a different row from the first pressure-sensing planes 11. The second pressure-sensing plane 21 is translated along a direction perpendicular to the row of the first pressure-sensing planes 11, preventing it from completely overlapping with the first pressure-sensing planes 11. For example, the row of at least two first pressure-sensing planes 11 may be perpendicular to the length direction of the superficial artery, and the second pressure-sensing plane 21 may be translated along the length direction of the superficial artery, preventing it from completely overlapping with the first pressure-sensing planes 11. This allows the first pressure-sensing planes 11 and the second pressure-sensing planes 21 to measure different initial pressure pulse wave data, thus achieving pressure pulse wave detection.

[0139] Please refer to Figure 18 and Figure 19 In one embodiment, at least two first pressure sensing units 1 can be provided. The at least two first pressure sensing units 1 can be arranged in a row, and the first pressure sensing units 1 share a common boundary with each other. The multiple first pressure sensing planes 11 have a shorter spacing, or the multiple first pressure sensing planes 11 are connected. The first pressure sensing planes 11 and the second pressure sensing planes 21 have a common boundary, which can be a line or a point, so that more complete first pressure sensing planes 11 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0140] Please refer to Figure 19 and Figure 20In one embodiment, at least two second pressure sensing units 2 can be provided. The at least two second pressure sensing units 2 can be arranged in a row, and the second pressure sensing units 2 share a common boundary with each other. The multiple second pressure sensing planes 21 have a shorter spacing, or the multiple second pressure sensing planes 21 are connected. The first pressure sensing plane 11 and the second pressure sensing plane 21 have a common boundary, which can be a line or a point, so that more complete second pressure sensing planes 21 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0141] In this embodiment, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are located in the same plane. During measurement, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 will simultaneously contact the superficial artery. However, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are staggered, and they cannot be translated or transformed along the length direction parallel to the superficial artery within the plane, thus they cannot completely overlap. This results in the two pressure-sensing planes detecting different initial pressure pulse wave data when simultaneously sensing pressure. When the pressure pulse wave data measured by the first pressure-sensing plane 11 and the second pressure-sensing plane 21 for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has squeezed the artery into place, and a part of the artery has been compressed into a plane. In other words, this pressure pulse wave sensor, with its two staggered pressure-sensing planes, can quickly detect the pressure pulse wave of the arterial tension method within one pulse wave cycle, improving detection efficiency.

[0142] Example 5:

[0143] This embodiment provides a pressure pulse wave sensor, which differs from the first embodiment described above in that: the first pressure-sensing plane 11 and the second pressure-sensing plane 21 in this embodiment are located in the same plane, and the first pressure-sensing plane 11 and the second pressure-sensing plane 21 have the same circle and the same area, and include at least two first pressure-sensing planes 11. The two first pressure-sensing planes 11 can be completely overlapped by translating along the shortest straight line, while the second pressure-sensing plane 21 cannot be completely overlapped with the first pressure-sensing plane 11 by translating along a line perpendicular to the line.

[0144] Please refer to Figure 21 In this embodiment, the first pressure-sensitive plane 11 and the second pressure-sensitive plane 21 have the same circle and the same area.

[0145] The pressure pulse wave sensor includes at least two first pressure sensing units 1 and one second pressure sensing unit 2. The two first pressure sensing units 1 are arranged in a row, and the second pressure sensing unit 2 is located in a different row from the first pressure sensing units 1. This results in the pressure pulse wave sensor including at least two first pressure-sensing planes 11 and one second pressure-sensing plane 21. The two first pressure-sensing planes 11 are arranged in a row, and the second pressure-sensing plane 21 is located in a different row from the first pressure-sensing planes 11. The second pressure-sensing plane 21 is translated along a direction perpendicular to the row of the first pressure-sensing planes 11, preventing it from completely overlapping with the first pressure-sensing planes 11. For example, the row of at least two first pressure-sensing planes 11 may be perpendicular to the length direction of the superficial artery, and the second pressure-sensing plane 21 may be translated along the length direction of the superficial artery, preventing it from completely overlapping with the first pressure-sensing planes 11. This allows the first pressure-sensing planes 11 and the second pressure-sensing planes 21 to measure different initial pressure pulse wave data, thus achieving pressure pulse wave detection.

[0146] In this embodiment, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are located in the same plane. During measurement, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 will simultaneously contact the superficial artery. However, the first pressure-sensing plane 11 and the second pressure-sensing plane 21 are staggered, with at least two first pressure-sensing planes 11 arranged in a column perpendicular to the length direction of the superficial artery. The first pressure-sensing planes 11 and 21 cannot be translated or transformed along the length direction parallel to the superficial artery within the plane, and cannot completely overlap. This results in the two pressure-sensing planes detecting different initial pressure pulse wave data when simultaneously sensing pressure. When the pressure pulse wave data measured by the first pressure-sensing planes 11 and 21 for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has compressed the artery into place, and a part of the artery has been compressed into a plane. In other words, this pressure pulse wave sensor sets up two staggered columns of pressure-sensing planes, which can quickly realize the detection of pressure pulse waves using the arterial tension method within one pulse wave cycle, improving detection efficiency. Furthermore, the multiple first pressure-sensing planes 11 share a common boundary, which allows for the compression of more complete first pressure-sensing planes 11 within the width of the superficial artery, thus improving the accuracy of the measurement.

[0147] Example 6:

[0148] Please refer to Figures 22 to 25In this embodiment, a pressure pulse wave sensor is provided, which includes at least one first pressure sensing unit 1 and one second pressure sensing unit 2. The pressure pulse wave sensor may also include a base 3, on which the first pressure sensing unit 1 and the second pressure sensing unit 2 are disposed. The first pressure sensing unit 1 and the second pressure sensing unit 2 are disposed at different spatial positions on the base 3, for example, side-by-side. This side-by-side arrangement may include parallel or non-parallel side-by-side arrangement. The base 3 may also have multiple first pressure sensing units 1 and multiple second pressure sensing units 2, with the multiple first pressure sensing units 1 arranged in a first column and the multiple second pressure sensing units 2 arranged in a second column.

[0149] The first pressure sensing unit 1 and the second pressure sensing unit 2 can be electrically connected to the base 3 via wires 31. The first pressure sensing unit 1 includes a first planar pressure-sensing area 12 facing away from the base 3, and the second pressure sensing unit 2 includes a second planar pressure-sensing area 22 facing away from the base 3. Both the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 face the superficial artery and are used to compress the superficial artery. The compression of the superficial artery by the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 can detect the pressure pulse wave signal of the compressed superficial artery. The first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are used to generate changes in electrical parameters due to compressive strain in order to collect the pressure pulse wave signal of the superficial artery.

[0150] The first pressure sensing unit 1 and the second pressure sensing unit 2 may include a MEMS pressure sensing unit, or one of the first pressure sensing unit 1 and the second pressure sensing unit 2 may include a MEMS pressure sensing unit while the other includes other pressure sensing units, both of which can realize the detection of pressure pulse waves in superficial arteries. The inclusion of a MEMS pressure sensing unit in the first pressure sensing unit 1 and the second pressure sensing unit 2 is a preferred embodiment.

[0151] In one embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 can be resistive pressure sensing units, capacitive pressure sensing units, or other types of pressure sensing units. For example, both the first pressure sensing unit 1 and the second pressure sensing unit 2 can be resistive pressure sensing units, or both can be capacitive pressure sensing units, or one of the first pressure sensing units 1 and the second pressure sensing unit 2 can be a resistive pressure sensing unit and the other a capacitive pressure sensing unit. Resistive pressure sensing units, capacitive pressure sensing units, or other types of pressure sensing units can all achieve pressure pulse wave detection of superficial arteries.

[0152] In this embodiment, the first planar pressure-sensing area 12 is located within the first pressure-sensing plane 11, and the second planar pressure-sensing area 22 is located within the second pressure-sensing plane 21. In this embodiment, by changing the spatial positions of the first pressure sensing unit 1 and the second pressure sensing unit 2, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 cannot completely overlap with each other. When the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 simultaneously compress the superficial artery for detection, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 compress different positions of the superficial artery. In the initial stage of detection, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 detect different pressure pulse wave data. If different pressures are detected, as the pressure pulse wave sensor further compresses the superficial artery, when the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 detect the same pressure pulse wave data for one pulse cycle, it is determined that the pressure pulse wave sensor has compressed the artery to the correct position, and a part of the artery is compressed into a plane. The pressure data is determined to be the data required for detection, and the pressure data is output as a pressure pulse wave signal. In this embodiment, the pressure pulse wave sensor can accurately measure the pressure pulse wave data of superficial arteries by comparing the planar pressure-sensing areas of two pressure sensing units within a pulse wave cycle. In other embodiments, multiple pulse wave cycles can be measured during the measurement process to obtain more accurate data. For example, the two pressure sensing units can first compare the data within each pulse wave cycle, and then average the results of each cycle comparison; or, the two pressure sensing units can first detect the data within multiple pulse wave cycles respectively, obtain the average value, and then compare the two.

[0153] In this embodiment, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are located in different planes, so that in the initial stage of measurement, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 squeeze the superficial artery at different depths or angles, obtaining different pressure pulse wave data. As the pressure pulse wave sensor further squeezes the superficial artery, when the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 detect the same pressure pulse wave data for one pulse cycle, it is determined that the pressure pulse wave sensor has squeezed the artery to the correct position, and a part of the artery is compressed into a plane. The pressure data is determined to be the data required for detection, and the pressure data is output as a pressure pulse wave signal.

[0154] Therefore, placing the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 in different planes enables the measurement of one pulse wave cycle. The first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 can have the same or different areas, and the same or different shapes. Furthermore, the first pressure-sensing unit 1 and the second pressure-sensing unit 2 can be arranged in a row, or they can be located in different rows. That is, in this embodiment, as long as the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are located in different planes, whether they have the same shape, the same area, or are located in the same row does not affect the measurement of the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22.

[0155] In this embodiment, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 being located in different planes include the following situations:

[0156] Please refer to Figure 22 and Figure 25 In the first scenario, the first plane pressure-sensing area 12 and the second plane pressure-sensing area 22 are parallel to each other, and there is a height difference between them. In other words, the distances between the first plane pressure-sensing area 12 and the second plane pressure-sensing area 22 relative to the base 3 are different, and the distances between the first plane pressure-sensing area 12 and the second plane pressure-sensing area 22 relative to the superficial artery are also different during measurement preparation. During measurement, the pressure-sensing plane closer to the superficial artery contacts the artery first, and the pressure-sensing plane farther from the artery contacts it later. Specifically, the first plane pressure-sensing area 12 and the second plane pressure-sensing area 22 compress the superficial artery at the same angle during measurement.

[0157] Please refer to Figure 26 In the second case: the first plane pressure-sensing area 12 and the second plane pressure-sensing area 22 have a plane angle α2, 0°<α2<180°; the first plane pressure-sensing area 12 and the second plane pressure-sensing area 22 are located on two different planes, and there is a certain angle between the first plane pressure-sensing area 12 and the second plane pressure-sensing area 22. During measurement, the first plane pressure-sensing area 12 and the second plane pressure-sensing area 22 squeeze the superficial artery at different angles.

[0158] Please refer to Figure 27 and Figure 28In the third scenario: when detecting the pressure pulse wave of a superficial artery, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 have a planar angle β2, where 0° < β2 < 180°; that is, when the pressure pulse wave of a superficial artery is not detected, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 can be located on the same plane. The first pressure sensing unit 1 and the second pressure sensing unit 2 are connected by a flexible component 5, which can be a flexible PFC, or the first pressure sensing unit 1 and the second pressure sensing unit 2 can be disposed on a flexible substrate 3. After compression, the first pressure sensing unit 1 and the second pressure sensing unit 2 can adapt to the shape of the wrist, and the flexible connection deforms, so that the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are located on different planes; it should be noted that Figure 7 This is an illustrative diagram and not a view at full scale.

[0159] Please refer to Figure 29 , Figure 30 and Figure 31 In the third case, the pressure pulse wave sensor includes multiple pressure sensing units. For example, the pressure pulse wave sensor includes a first pressure sensing unit 1, a second pressure sensing unit 2, a third pressure sensing unit 7, and a fourth pressure sensing unit 8. These units are sequentially and spaced apart on the flexible member 5. The third pressure sensing unit 7 has a third planar pressure sensing area 72 located within a third sensing plane 71. The fourth pressure sensing unit 8 has a fourth planar pressure sensing area 82 located within a fourth sensing plane. When not measuring, the first planar pressure sensing area 12, the second planar pressure sensing area 22, the third planar pressure sensing area 72, and the fourth planar pressure sensing area 82 are all within the same plane. Figure 30 and Figure 31 As shown; during the measurement process, the first pressure sensing unit 1, the second pressure sensing unit 2, the third pressure sensing unit 7, and the fourth pressure sensing unit 8 can adapt to the shape of the wrist 6 after being squeezed, and the flexible connection deforms. The first planar pressure sensing area 12, the second planar pressure sensing area 22, the third planar pressure sensing area 72, and the fourth planar pressure sensing area 82 are located on different planes, as shown. Figure 32 As shown. Among them, the first pressure sensing unit 1, the second pressure sensing unit 2, the third pressure sensing unit 7 and the fourth pressure sensing unit 8 are provided with electrodes on the side near the flexible member 5, and these sensing units are electrically connected to the flexible member 5 through the electrodes.

[0160] In this embodiment, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are located in different planes and cannot completely overlap through planar transformation. This results in different initial pressure pulse wave data detected by the two pressure-sensing planes when the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 simultaneously measure pressure. When the pressure pulse wave data measured by the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has compressed the artery to its proper position, and a portion of the artery is compressed into a plane. In other words, this pressure pulse wave sensor, with its two pressure-sensing planes in different planes, can quickly detect the pressure pulse wave using the arterial tension method within one pulse wave cycle, improving detection efficiency.

[0161] Example 7:

[0162] This embodiment provides a pressure pulse wave sensor, which differs from the above embodiment six in that: the first planar pressure sensing area 12 and the second planar pressure sensing area 22 in this embodiment are located in the same plane, and the first planar pressure sensing area 12 and the second planar pressure sensing area 22 have different shapes and / or different areas.

[0163] Please refer to Figures 32 to 35 In this embodiment, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 are located in the same plane.

[0164] The first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 also have different shapes and / or different areas, so that the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 cannot completely overlap each other when translated in the plane.

[0165] In one embodiment, the pressure pulse wave sensor further includes a pressure conductive adhesive 4. All the first planar pressure-sensing areas 12 and the second planar pressure-sensing areas 22 are covered with the pressure conductive adhesive 4. The surface of the pressure conductive adhesive 4 facing away from the first planar pressure-sensing areas 12 and the second planar pressure-sensing areas 22 forms a pressure plane. The pressure plane is used to directly or indirectly compress superficial arteries, and the pressure conductive adhesive 4 is used to transmit pressure to the first planar pressure-sensing areas 12 and the second planar pressure-sensing areas 22.

[0166] In this embodiment, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 have different shapes and / or different areas, including the following cases:

[0167] Please refer to Figure 35 In the first case, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 have different shapes and the same area;

[0168] Please refer to Figure 36 The second case: the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 have the same shape but different areas;

[0169] Please refer to Figure 37 The third case: the first plane pressure-sensitive area 12 and the second plane pressure-sensitive area 22 have different shapes and different areas.

[0170] In this embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 can be arranged adjacent to each other, and a gap can be provided between the first pressure sensing unit 1 and the second pressure sensing unit 2, so that the first planar pressure sensing area 12 and the second planar pressure sensing area 22 are located in the same column.

[0171] In one embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 may also share a common edge line. The first pressure sensing unit 1 and the second pressure sensing unit 2 are attached to each other, and there is a shorter gap between the first planar pressure sensing area 12 and the second planar pressure sensing area 22. This allows for the corresponding compression of more complete first planar pressure sensing areas 12 and second planar pressure sensing areas 22 within the width range of the superficial artery, which is beneficial to improving the accuracy of the measurement.

[0172] In one embodiment, at least two first pressure sensing units 1 can be provided, and the at least two first pressure sensing units 1 can be arranged in a row. The first pressure sensing units 1 share a common boundary with each other, and the multiple first planar pressure sensing areas 12 have a shorter spacing, so that more complete first planar pressure sensing areas 12 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0173] In one embodiment, at least two second pressure sensing units 2 can be provided, and the at least two second pressure sensing units 2 can be arranged in a row. The second pressure sensing units 2 share a common boundary with each other, and the multiple second planar pressure sensing areas 22 have a shorter spacing, so that more complete second planar pressure sensing areas 22 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0174] In this embodiment, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are located in the same plane. During measurement, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 will simultaneously contact the superficial artery. However, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 have different shapes and / or different areas. The first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 cannot completely overlap during translational transformation within the plane. This results in different initial pressure pulse wave data detected by the two pressure-sensing planes when the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 measure pressure pulse wave data for one pulse cycle. When the pressure pulse wave data measured by the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are the same, it indicates that the pressure pulse wave sensor has compressed the artery into place, and a portion of the artery has been compressed into a plane. In other words, this pressure pulse wave sensor uses two pressure-sensing planes with different shapes or areas, enabling rapid detection of pressure pulse waves using the arterial tension method within one pulse wave cycle, thus improving detection efficiency.

[0175] Example 8:

[0176] This embodiment provides a pressure pulse wave sensor, which differs from the above embodiment six in that: the first planar pressure sensing area 12 and the second planar pressure sensing area 22 in this embodiment are located in the same plane, and the first planar pressure sensing area 12 and the second planar pressure sensing area 22 have the same non-circular shape, the same area, and different rotation angles.

[0177] In this embodiment, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 have the same non-circular shape, the same area, and different rotation angles. For example, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 are squares, and the rotation angle between the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 is equal to 45°.

[0178] Please refer to Figure 38 In this embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 can be arranged adjacent to each other, and a gap can be provided between the first pressure sensing unit 1 and the second pressure sensing unit 2, so that the first planar pressure sensing area 12 and the second planar pressure sensing area 22 are located in the same column.

[0179] Please refer to Figure 39 In one embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 may also share a common edge line. The first pressure sensing unit 1 and the second pressure sensing unit 2 are attached to each other, and there is a shorter gap between the first planar pressure sensing area 12 and the second planar pressure sensing area 22. This allows for the corresponding compression of more complete first planar pressure sensing areas 12 and second planar pressure sensing areas 22 within the width range of the superficial artery, which is beneficial to improving the accuracy of the measurement.

[0180] In one embodiment, at least two first pressure sensing units 1 can be provided, and the at least two first pressure sensing units 1 can be arranged in a row. The first pressure sensing units 1 share a common boundary with each other, and the multiple first planar pressure sensing areas 12 have a shorter spacing, so that more complete first planar pressure sensing areas 12 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0181] In one embodiment, at least two second pressure sensing units 2 can be provided, and the at least two second pressure sensing units 2 can be arranged in a row. The second pressure sensing units 2 share a common boundary with each other, and the multiple second planar pressure sensing areas 22 have a shorter spacing, so that more complete second planar pressure sensing areas 22 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0182] In this embodiment, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are located in the same plane. During measurement, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 will simultaneously contact the superficial artery. However, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 have different rotation angles. The translational transformations of the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 within the plane cannot completely overlap with each other. This results in the two pressure-sensing planes detecting different initial pressure pulse wave data when the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 measure pressure pulse wave data for one pulse cycle being the same. This indicates that the pressure pulse wave sensor has compressed the artery into place, and a part of the artery has been compressed into a plane. In other words, this pressure pulse wave sensor sets two pressure-sensing planes with different rotation angles, which can quickly realize the detection of pressure pulse waves using the arterial tension method within one pulse wave cycle, improving detection efficiency.

[0183] Example 9:

[0184] This embodiment provides a pressure pulse wave sensor, which differs from the above embodiment six in that: the first planar pressure sensing area 12 and the second planar pressure sensing area 22 in this embodiment are located in the same plane, and the first planar pressure sensing area 12 and the second planar pressure sensing area 22 have the same non-circular shape, the same area, and the same rotation angle, and include at least two first planar pressure sensing areas 12. The two first planar pressure sensing areas 12 can be completely overlapped by translating along the shortest straight line, and the second planar pressure sensing area 22 cannot be completely overlapped with the first planar pressure sensing area 12 by translating along a line perpendicular to the line.

[0185] In this embodiment, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 have the same non-circular shape, the same area, and the same rotation angle. For example, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 are squares, and the rotation angle between the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 is equal to 0°.

[0186] The pressure pulse wave sensor includes at least two first pressure sensing units 1 and one second pressure sensing unit 2. The two first pressure sensing units 1 are arranged in a row, and the second pressure sensing unit 2 is located in a different row from the first pressure sensing units 1. This results in the pressure pulse wave sensor including at least two first planar pressure-sensing regions 12 and one second planar pressure-sensing region 22. The two first planar pressure-sensing regions 12 are arranged in a row, and the second planar pressure-sensing region 22 is located in a different row from the first planar pressure-sensing regions 12. The second planar pressure-sensing region 22 is translated along a direction perpendicular to the column containing the first planar pressure-sensing regions 12, preventing complete overlap with the first planar pressure-sensing regions 12. The column containing the at least two first planar pressure-sensing regions 12 is perpendicular to the length direction of the superficial artery, and the second planar pressure-sensing region 22 is translated along the length direction of the superficial artery, preventing complete overlap with the first planar pressure-sensing regions 12. This allows the first planar pressure-sensing regions 12 and the second planar pressure-sensing regions 22 to measure different initial pressure pulse wave data, thus achieving pressure pulse wave detection.

[0187] Please refer to Figure 40 and Figure 42 In one embodiment, at least two first pressure sensing units 1 can be provided, and the at least two first pressure sensing units 1 can be arranged in a row. The first pressure sensing units 1 share a common boundary with each other, and the multiple first planar pressure sensing areas 12 have a shorter spacing. The first planar pressure sensing areas 12 and the second planar pressure sensing areas 22 have a common boundary, which can be a line or a point. This allows more complete first planar pressure sensing areas 12 to be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of the measurement.

[0188] Please refer to Figure 41 and Figure 42 In one embodiment, at least two second pressure sensing units 2 can be provided, and the at least two second pressure sensing units 2 can be arranged in a row. The second pressure sensing units 2 share a common boundary with each other, and the multiple second planar pressure sensing areas 22 have a shorter spacing. The first planar pressure sensing area 12 and the second planar pressure sensing area 22 have a common boundary, which can be a line or a point. This allows more complete second planar pressure sensing areas 22 to be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of the measurement.

[0189] In this embodiment, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are located in the same plane. During measurement, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 will simultaneously contact the superficial artery. However, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are staggered. They cannot be translated or transformed along the length direction parallel to the superficial artery within the plane and cannot completely overlap. This results in the two pressure-sensing planes detecting different initial pressure pulse wave data when the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 simultaneously measure pressure. When the pressure pulse wave data measured by the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has compressed the artery into place, and a part of the artery has been compressed into a plane. In other words, this pressure pulse wave sensor, with its two staggered pressure-sensing planes, can quickly detect the pressure pulse wave of the arterial tension method within one pulse wave cycle, improving detection efficiency.

[0190] Example 10:

[0191] This embodiment provides a pressure pulse wave sensor, which differs from the above embodiment six in that: the first planar pressure sensing area 12 and the second planar pressure sensing area 22 in this embodiment are located in the same plane, and the first planar pressure sensing area 12 and the second planar pressure sensing area 22 have the same circle and the same area, and include at least two first planar pressure sensing areas 12. The two first planar pressure sensing areas 12 can be completely overlapped by translating along the shortest straight line, while the second planar pressure sensing area 22 cannot be completely overlapped with the first planar pressure sensing area 12 by translating along a line perpendicular to the line.

[0192] Please refer to Figure 43 In this embodiment, the first planar pressure-sensitive area 12 and the second planar pressure-sensitive area 22 have the same circle and the same area.

[0193] The pressure pulse wave sensor includes at least two first pressure sensing units 1 and one second pressure sensing unit 2. The two first pressure sensing units 1 are arranged in a row, and the second pressure sensing unit 2 is located in a different row from the first pressure sensing units 1. This results in the pressure pulse wave sensor including at least two first planar pressure-sensing regions 12 and one second planar pressure-sensing region 22. The two first planar pressure-sensing regions 12 are arranged in a row, and the second planar pressure-sensing region 22 is located in a different row from the first planar pressure-sensing regions 12. The second planar pressure-sensing region 22 is translated along a direction perpendicular to the column containing the first planar pressure-sensing regions 12, preventing complete overlap with the first planar pressure-sensing regions 12. For example, the column containing at least two first planar pressure-sensing regions 12 may be perpendicular to the length direction of the superficial artery, and the second planar pressure-sensing region 22 may be translated along the length direction of the superficial artery, preventing complete overlap with the first planar pressure-sensing regions 12. This allows the first planar pressure-sensing regions 12 and the second planar pressure-sensing regions 22 to measure different initial pressure pulse wave data, thus achieving pressure pulse wave detection.

[0194] In this embodiment, the first pressure sensing unit 1 and the second pressure sensing unit 2 can be arranged adjacent to each other, and a gap can be provided between the first pressure sensing unit 1 and the second pressure sensing unit 2, so that the first planar pressure sensing area 12 and the second planar pressure sensing area 22 are located in the same column.

[0195] In one embodiment, at least two first pressure sensing units 1 can be provided, and the at least two first pressure sensing units 1 can be arranged in a row. The first pressure sensing units 1 share a common boundary with each other, and the multiple first planar pressure sensing areas 12 have a shorter spacing. The row of multiple first planar pressure sensing areas 12 is perpendicular to the length direction of the superficial artery, so that more complete first planar pressure sensing areas 12 can be squeezed within the width range of the superficial artery, which is beneficial to improving the accuracy of measurement.

[0196] Please refer to Figure 44The first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are located in the same plane. During measurement, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 will simultaneously come into contact with the superficial artery. However, the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are staggered, and at least two first planar pressure-sensing areas 12 are arranged in a row perpendicular to the length direction of the superficial artery. The first planar pressure-sensing areas 12 and the second planar pressure-sensing areas 22 cannot be translated or transformed along the length direction parallel to the superficial artery in the plane and cannot completely overlap with each other. As a result, when the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 simultaneously sense pressure, the two pressure-sensing planes detect different initial pressure pulse wave data. When the pressure pulse wave data of one pulse cycle measured by the first planar pressure-sensing area 12 and the second planar pressure-sensing area 22 are the same, it means that the pressure pulse wave sensor has squeezed the artery into place, and part of the artery has been compressed into a plane. In other words, this pressure pulse wave sensor features two staggered planar pressure-sensing zones, enabling rapid detection of pressure pulse waves using the arterial tension method within one pulse wave cycle, thus improving detection efficiency. Furthermore, the multiple first planar pressure-sensing zones 12 share a common boundary, allowing for the compression of more complete first planar pressure-sensing zones 12 within the width of the superficial artery, which helps improve measurement accuracy.

[0197] The above-described specific examples are intended to aid in understanding the invention and should not be construed as limiting its other applications. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. A pressure pulse wave sensor, characterized in that: The system includes a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery. The first and second pressure-sensing planes are located in different planes, and cannot completely overlap through plane transformation. The pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first and second pressure-sensing planes, and compare the pressure pulse wave data detected by the first and second pressure-sensing planes within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery. Wherein, when the pressure pulse wave data measured by the first and second pressure-sensing planes for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has compressed the artery to the correct position, and the pressure pulse wave data for one pulse cycle is determined to be the data required for detection. The pressure pulse wave data for one pulse cycle is then converted into a pressure pulse wave signal for output.

2. The pressure pulse wave sensor as described in claim 1, characterized in that: The first pressure-sensitive plane and the second pressure-sensitive plane have a plane angle α1, where 0° < α1 < 180°; or, When detecting the pressure pulse wave of the superficial artery, the first pressure-sensing plane and the second pressure-sensing plane have a plane angle β1, where 0° < β1 < 180°.

3. The pressure pulse wave sensor as described in claim 1, characterized in that: The first pressure-sensitive plane and the second pressure-sensitive plane are parallel to each other.

4. The pressure pulse wave sensor as described in claim 3, characterized in that: The first pressure sensing unit and the second pressure sensing unit are arranged in a row; or, The first pressure sensing unit and the second pressure sensing unit are located in different columns.

5. The pressure pulse wave sensor as described in claim 1, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

6. A pressure pulse wave sensor, characterized in that: The system includes a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery. The first and second pressure-sensing planes are in the same plane, and have different shapes and / or different areas. The first and second pressure-sensing planes cannot completely overlap through translation transformation. The pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first and second pressure-sensing planes, and compare the pressure pulse wave data detected by the first and second pressure-sensing planes within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery. When the pressure pulse wave data measured by the first and second pressure-sensing planes for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has squeezed the artery to the correct position, and the pressure pulse wave data for one pulse cycle is determined to be the data required for detection. The pressure pulse wave data for one pulse cycle is then output as a pressure pulse wave signal.

7. The pressure pulse wave sensor as described in claim 6, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit; Alternatively, the first pressure sensing unit and the second pressure sensing unit share a common edge. Alternatively, it may include at least two of the first pressure sensing units arranged in a row, the at least two of the first pressure sensing units having a common edge; Alternatively, it may include at least two second pressure sensing units arranged in a row, the at least two second pressure sensing units having a common edge.

8. The pressure pulse wave sensor as described in claim 7, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit.

9. The pressure pulse wave sensor as described in claim 6, characterized in that: It also includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the pressure plane and detect the pressure pulse wave signal of the superficial artery.

10. The pressure pulse wave sensor as described in claim 6, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

11. A pressure pulse wave sensor, characterized in that: The system includes a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery. The first and second pressure-sensing planes are in the same plane and have the same non-circular shape, the same area, and different rotation angles. The first and second pressure-sensing planes cannot completely overlap through translation transformation. The pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first and second pressure-sensing planes, and compare the pressure pulse wave data detected by the first and second pressure-sensing planes within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery. When the pressure pulse wave data measured by the first and second pressure-sensing planes for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has squeezed the artery to the correct position, and the pressure pulse wave data for one pulse cycle is determined to be the data required for detection. The pressure pulse wave data for one pulse cycle is then output as a pressure pulse wave signal.

12. The pressure pulse wave sensor as described in claim 11, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit; Alternatively, the first pressure sensing unit and the second pressure sensing unit share a common edge. Alternatively, it may include at least two of the first pressure sensing units arranged in a row, the at least two of the first pressure sensing units having a common edge; Alternatively, it may include at least two second pressure sensing units arranged in a row, the at least two second pressure sensing units having a common edge.

13. The pressure pulse wave sensor as described in claim 12, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit.

14. The pressure pulse wave sensor as described in claim 11, characterized in that: It also includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the pressure plane and detect the pressure pulse wave signal of the superficial artery.

15. The pressure pulse wave sensor as described in claim 11, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

16. A pressure pulse wave sensor, characterized in that: The system includes a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery. The first and second pressure-sensing planes are in the same plane and have the same non-circular shape, the same area, and the same rotation angle. The system includes at least two first pressure sensing units arranged in a row, sharing a common edge. It includes at least two first pressure-sensing planes, which are completely overlapped by translation along the shortest straight line. The second pressure-sensing plane cannot be overlapped by translation along a line perpendicular to the first pressure-sensing plane. The pressure pulse wave sensor is shifted and completely overlaps with the first pressure-sensing plane; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first pressure-sensing plane and the second pressure-sensing plane, and compare the pressure pulse wave data detected by the first pressure-sensing plane and the second pressure-sensing plane within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery; wherein, when the pressure pulse wave data measured by the first pressure-sensing plane and the second pressure-sensing plane for one pulse cycle are the same, it means that the pressure pulse wave sensor has squeezed the artery in place, and the pressure pulse wave data for one pulse cycle is determined to be the data required for detection, and the pressure pulse wave data for one pulse cycle is output as a pressure pulse wave signal.

17. The pressure pulse wave sensor as described in claim 16, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit; Alternatively, the first pressure sensing unit and the second pressure sensing unit share a common edge. Alternatively, it may include at least two of the first pressure sensing units arranged in a row, the at least two of the first pressure sensing units having a common edge; Alternatively, it may include at least two second pressure sensing units arranged in a row, the at least two second pressure sensing units having a common edge.

18. The pressure pulse wave sensor as described in claim 17, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit.

19. The pressure pulse wave sensor as described in claim 16, characterized in that: It also includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the pressure plane and detect the pressure pulse wave signal of the superficial artery.

20. The pressure pulse wave sensor as described in claim 16, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

21. A pressure pulse wave sensor, characterized in that: The system includes a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first pressure-sensing plane facing the superficial artery, and the second pressure sensing unit includes a second pressure-sensing plane facing the superficial artery. The first pressure-sensing plane and the second pressure-sensing plane are in the same plane and have the same circle and area. The system includes at least two first pressure sensing units arranged in a row, with at least two first pressure sensing units sharing a common edge. The system includes at least two first pressure-sensing planes, which are completely overlapped by translation along the shortest straight line. The second pressure-sensing plane cannot be overlapped by translation along a line perpendicular to the shortest straight line. The first pressure-sensing planes completely overlap each other; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first pressure-sensing plane and the second pressure-sensing plane, and compare the pressure pulse wave data detected by the first pressure-sensing plane and the second pressure-sensing plane within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery; wherein, when the pressure pulse wave data measured by the first pressure-sensing plane and the second pressure-sensing plane for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has squeezed the artery in place, and the pressure pulse wave data for one pulse cycle is determined to be the data required for detection, and the pressure pulse wave data for one pulse cycle is output as a pressure pulse wave signal.

22. The pressure pulse wave sensor as described in claim 21, characterized in that: It also includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the pressure plane and detect the pressure pulse wave signal of the superficial artery.

23. The pressure pulse wave sensor as described in claim 21, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

24. A pressure pulse wave sensor, characterized in that: The system includes a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first planar pressure sensing area facing the superficial artery, and the second pressure sensing unit includes a second planar pressure sensing area facing the superficial artery. The first and second planar pressure sensing areas are used to generate changes in electrical parameters due to compressive strain. The first and second planar pressure sensing areas are located in different planes and cannot completely overlap through planar transformation. The pressure pulse wave sensor is used to: sense changes in electrical parameters through the first and second planar pressure sensing areas. The pressure-sensitive area directly or indirectly compresses the superficial artery, and the pressure pulse wave data detected by the first and second planar pressure-sensitive areas within at least one pulse wave cycle are compared to detect the pressure pulse wave signal of the superficial artery. Specifically, when the pressure pulse wave data measured by the first and second planar pressure-sensitive areas for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has effectively compressed the artery, and the pressure pulse wave data for that one pulse cycle is determined to be the data required for detection. The pressure pulse wave data for that one pulse cycle is then converted into a pressure pulse wave signal for output.

25. The pressure pulse wave sensor as described in claim 24, characterized in that: The first planar pressure-sensitive area and the second planar pressure-sensitive area have a planar angle α2, where 0° < α2 < 180°; or, When detecting the pressure pulse wave of the superficial artery, the first planar pressure-sensing area and the second planar pressure-sensing area have a planar angle β2, where 0° < β2 < 180°.

26. The pressure pulse wave sensor as described in claim 24, characterized in that: The first planar pressure-sensitive area and the second planar pressure-sensitive area are parallel to each other.

27. The pressure pulse wave sensor as described in claim 26, characterized in that: The first pressure sensing unit and the second pressure sensing unit are arranged in a row; or, The first pressure sensing unit and the second pressure sensing unit are located in different columns.

28. The pressure pulse wave sensor as described in claim 24, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

29. A pressure pulse wave sensor, characterized in that: The system includes a first pressure sensing unit and a second pressure sensing unit. The first pressure sensing unit includes a first planar pressure-sensing area facing the superficial artery, and the second pressure sensing unit includes a second planar pressure-sensing area facing the superficial artery. The first and second planar pressure-sensing areas are used to generate changes in electrical parameters due to compressive strain. The first and second planar pressure-sensing areas are located in the same plane, and have different shapes and / or different areas. The first and second planar pressure-sensing areas cannot completely overlap through translation transformation. The pressure pulse wave sensor is used for: The superficial artery is directly or indirectly compressed by the first and second planar pressure-sensing areas, and the pressure pulse wave data detected by the first and second planar pressure-sensing areas within at least one pulse wave cycle is compared to detect the pressure pulse wave signal of the superficial artery. Specifically, when the pressure pulse wave data measured by the first and second planar pressure-sensing areas for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has effectively compressed the artery, and the pressure pulse wave data for that one pulse cycle is determined to be the data required for detection. The pressure pulse wave data for that one pulse cycle is then output as a pressure pulse wave signal.

30. The pressure pulse wave sensor as described in claim 29, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit; Alternatively, the first pressure sensing unit and the second pressure sensing unit share a common edge. Alternatively, it may include at least two of the first pressure sensing units arranged in a row, the at least two of the first pressure sensing units having a common edge; Alternatively, it may include at least two second pressure sensing units arranged in a row, the at least two second pressure sensing units having a common edge.

31. The pressure pulse wave sensor as described in claim 30, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit.

32. The pressure pulse wave sensor as described in claim 29, characterized in that: It also includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the pressure plane and detect the pressure pulse wave signal of the superficial artery.

33. The pressure pulse wave sensor as described in claim 29, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

34. A pressure pulse wave sensor, characterized in that: It includes a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first planar pressure sensing area facing the superficial artery, and the second pressure sensing unit includes a second planar pressure sensing area facing the superficial artery. The first and second planar pressure sensing areas are used to generate changes in electrical parameters due to compressive strain; the first and second planar pressure sensing areas are in the same plane, and have the same non-circular shape, the same area, and different rotation angles. The first and second planar pressure sensing areas cannot completely overlap each other through translation transformation; the pressure pulse wave is transmitted... The sensor is used to: directly or indirectly compress the superficial artery through the first planar pressure-sensing area and the second planar pressure-sensing area, and compare the pressure pulse wave data detected by the first planar pressure-sensing area and the second planar pressure-sensing area within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery; wherein, when the pressure pulse wave data measured by the first planar pressure-sensing area and the second planar pressure-sensing area for one pulse cycle are the same, it indicates that the pressure pulse wave sensor has squeezed the artery in place, and the pressure pulse wave data for one pulse cycle is determined to be the data required for detection, and the pressure pulse wave data for one pulse cycle is output as a pressure pulse wave signal.

35. The pressure pulse wave sensor as described in claim 34, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit; Alternatively, the first pressure sensing unit and the second pressure sensing unit share a common edge. Alternatively, it may include at least two of the first pressure sensing units arranged in a row, the at least two of the first pressure sensing units having a common edge; Alternatively, it may include at least two second pressure sensing units arranged in a row, the at least two second pressure sensing units having a common edge.

36. The pressure pulse wave sensor as described in claim 35, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit.

37. The pressure pulse wave sensor as described in claim 34, characterized in that: It also includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the pressure plane and detect the pressure pulse wave signal of the superficial artery.

38. The pressure pulse wave sensor as described in claim 34, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

39. A pressure pulse wave sensor, characterized in that: It includes a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first planar pressure sensing area facing the superficial artery, and the second pressure sensing unit includes a second planar pressure sensing area facing the superficial artery. The first and second planar pressure sensing areas are used to generate changes in electrical parameters due to compressive strain; the first and second planar pressure sensing areas are in the same plane, and have the same non-circular shape, the same area, and the same rotation angle; it includes at least two first pressure sensing units arranged in a row, and the at least two first pressure sensing units share a common edge; it includes at least two first planar pressure sensing areas, which are completely overlapped by translation along the shortest straight line; the... The second planar pressure-sensing area cannot completely overlap with the first planar pressure-sensing area by translating along a line perpendicular to the line. The pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first and second planar pressure-sensing areas, and compare the pressure pulse wave data detected by the first and second planar pressure-sensing areas within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery. Wherein, when the pressure pulse wave data measured by the first and second planar pressure-sensing areas for one pulse cycle are the same, it means that the pressure pulse wave sensor has squeezed the artery in place, and the pressure pulse wave data for one pulse cycle is determined to be the data required for detection, and the pressure pulse wave data for one pulse cycle is output as a pressure pulse wave signal.

40. The pressure pulse wave sensor as described in claim 39, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit; Alternatively, the first pressure sensing unit and the second pressure sensing unit share a common edge. Alternatively, it may include at least two of the first pressure sensing units arranged in a row, the at least two of the first pressure sensing units having a common edge; Alternatively, it may include at least two second pressure sensing units arranged in a row, the at least two second pressure sensing units having a common edge.

41. The pressure pulse wave sensor as described in claim 40, characterized in that: The first pressure sensing unit is adjacent to the second pressure sensing unit.

42. The pressure pulse wave sensor as described in claim 39, characterized in that: It also includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the pressure plane and detect the pressure pulse wave signal of the superficial artery.

43. The pressure pulse wave sensor as described in claim 39, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

44. A pressure pulse wave sensor, characterized in that: It includes a first pressure sensing unit and a second pressure sensing unit; the first pressure sensing unit includes a first planar pressure sensing area facing the superficial artery, and the second pressure sensing unit includes a second planar pressure sensing area facing the superficial artery. The first and second planar pressure sensing areas are used to generate changes in electrical parameters due to compressive strain; the first and second planar pressure sensing areas are in the same plane and have the same circle and area; it includes at least two first pressure sensing units arranged in a row, and the at least two first pressure sensing units have a common edge; it includes at least two first planar pressure sensing areas, which are completely overlapped by translation along the shortest straight line; the second planar pressure sensing area... The pressure pulse wave sensor cannot completely overlap with the first planar pressure-sensitive area by translating along a line perpendicular to the line. The pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the first planar pressure-sensitive area and the second planar pressure-sensitive area, and compare the pressure pulse wave data detected by the first planar pressure-sensitive area and the second planar pressure-sensitive area within at least one pulse wave cycle to detect the pressure pulse wave signal of the superficial artery. Wherein, when the pressure pulse wave data measured by the first planar pressure-sensitive area and the second planar pressure-sensitive area for one pulse cycle are the same, it means that the pressure pulse wave sensor has squeezed the artery in place, and the pressure pulse wave data for one pulse cycle is determined to be the data required for detection, and the pressure pulse wave data for one pulse cycle is output as a pressure pulse wave signal.

45. The pressure pulse wave sensor as described in claim 44, characterized in that: It also includes a pressure-conducting adhesive, which covers the first pressure sensing unit and the second pressure sensing unit to form a pressure plane for transmitting pressure to the first pressure sensing unit and the second pressure sensing unit; the pressure pulse wave sensor is used to: directly or indirectly compress the superficial artery through the pressure plane and detect the pressure pulse wave signal of the superficial artery.

46. ​​The pressure pulse wave sensor as described in claim 44, characterized in that: The first pressure sensing unit and / or the second pressure sensing unit include a MEMS pressure sensing unit; And / or, the first pressure sensing unit and / or the second pressure sensing unit are resistive pressure sensing units or capacitive pressure sensing units.

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