A valve, integrated air pump and ambulatory blood pressure measurement device

Abstract

The application provides a valve, an integrated air pump and a dynamic blood pressure measuring device. The valve comprises: a first space, a space wall of the first space is provided with at least one first air inlet for air inlet and a first air outlet for air outlet; a gas leakage structure, the gas leakage structure has at least two first gas leakage ports for connecting the outside atmosphere and the air bag of the dynamic blood pressure measuring device; a sealing structure for cutting off and opening the communication between the outside atmosphere and the air bag, the sealing structure has a first restoring force for returning to the original position after displacement, the sealing structure has a first side and a second side opposite to the first side, the first side is located in the interior of the first space, and the second side is located outside the first space, and the sealing structure controls the movement of the sealing structure relative to the at least two first gas leakage ports according to the difference between the sum of the force borne by the second side and the force borne by the first side and the change of the first restoring force, so as to close and open the at least two first gas leakage ports. The valve effectively meets the requirements of the dynamic blood pressure measuring device.

Description

Technical Field

[0001] This invention relates to the field of blood pressure measurement technology, specifically to a valve, an integrated air pump, and a dynamic blood pressure measurement device. Background Technology

[0002] National (international) mandatory standards for ambulatory blood pressure monitoring devices stipulate safety requirements including the provision of independent and normal pressure control systems to ensure that, under conditions of rapid deflating with the inflation system valve fully open, the pressure drop from 34.67 kPa (260 mmHg) to 2 kPa (15 mmHg) should not exceed 10 seconds. This means that a device must have a dual-path pressure control system. The problem is that the volume of the ambulatory blood pressure watch body is limited, and the required operating time is much longer than that of ordinary blood pressure watches. For example, one of its specifications is to measure blood pressure every 5 minutes, which means 288 measurements are required in 24 hours. Therefore, the air pump or valve of the ambulatory blood pressure monitoring device needs to be simple and compact in structure, and also have a dual-path deflating method. Current technologies using a single valve or a single air pump cannot meet this requirement. Summary of the Invention

[0003] This application provides a valve, an integrated air pump, and a dynamic blood pressure measurement device that can well meet the needs of dynamic blood pressure measurement.

[0004] To address the aforementioned technical problems, one embodiment of this application provides a valve for use in an ambulatory blood pressure measurement device, comprising:

[0005] A first space, wherein the space wall of the first space is provided with at least one first air inlet for air intake and a first exhaust outlet for air exhaust;

[0006] A venting structure having at least two first vents for connecting the external atmosphere with the air bladder of the dynamic blood pressure measuring device;

[0007] A sealing structure is used to isolate and open the communication between the outside atmosphere and the airbag. The sealing structure has a first restoring force to return to its original position after displacement. The sealing structure has a first side and a second side opposite to the first side. The first side is located inside the first space, and the second side is located outside the first space. The sealing structure controls the movement of the sealing structure relative to at least two first vents based on the change between the sum of the first restoring force and the force on the second side and the force on the first side, so as to close and open at least two first vents.

[0008] To address the aforementioned technical problems, another embodiment of this application provides an integrated air pump, comprising:

[0009] Pressurization unit;

[0010] The valve described above is used in a dynamic blood pressure measurement device, wherein the pressurization unit is connected to the valve to provide compressed gas to the valve.

[0011] To address the aforementioned technical problems, another embodiment of this application provides a dynamic blood pressure measurement device, comprising:

[0012] The airbag and a pressure sensor for detecting air pressure, as well as the aforementioned integrated air pump, which is connected to the airbag.

[0013] To address the aforementioned technical problems, another embodiment of this application provides a dynamic blood pressure measurement device, comprising:

[0014] The device includes an airbag, an air pump, and a pressure sensor for detecting air pressure, as well as the valve described above for use in a dynamic blood pressure measurement device, wherein the air pump is connected to the airbag via the valve.

[0015] The valve structure is simple. A single sealing structure can simultaneously control the closing and opening of at least two first vent ports. The sealing structure is controlled by the pressure within the first space, making control simple and convenient. The presence of two first vent ports can effectively ensure that the airbag can safely release gas when it does not need to be inflated, thus well meeting the requirements of dynamic blood pressure measurement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the valve structure according to one embodiment;

[0017] Figure 2 This is a schematic diagram of a sealing structure in a valve, according to one embodiment, closing the first vent.

[0018] Figure 3 This is a schematic diagram of the valve structure of an airbag during inflation, according to one embodiment.

[0019] Figure 4 This is a schematic diagram of the valve structure of the airbag during degassing, according to one embodiment.

[0020] Figure 5 This is a schematic diagram of the valve structure according to one embodiment;

[0021] Figure 6 This is a schematic diagram of the valve structure according to one embodiment;

[0022] Figure 7 This is a schematic diagram of the valve structure according to one embodiment;

[0023] Figure 8 This is a schematic diagram of the valve structure according to one embodiment;

[0024] Figure 9This is a schematic diagram of the valve structure according to one embodiment;

[0025] Figure 10 This is a schematic diagram of the valve structure according to one embodiment;

[0026] Figure 11 This is a schematic diagram of the valve structure according to one embodiment;

[0027] Figure 12 This is a schematic diagram of the structure of a valve for directly inflating an airbag according to one embodiment;

[0028] Figure 13 This is a schematic diagram of the structure of an integrated air pump according to one embodiment;

[0029] Figure 14 This is an exploded view of an integrated air pump according to one embodiment;

[0030] Figure 15 This is a longitudinal cross-sectional schematic diagram of an integrated air pump according to one embodiment;

[0031] Figure 16 This is a longitudinal cross-sectional schematic diagram of the sealed structure enclosing the gas passage in an integrated air pump according to one embodiment;

[0032] Figure 17 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during inflation, according to one embodiment.

[0033] Figure 18 A longitudinal cross-sectional schematic diagram of the integrated air pump after the airbag stops inflating, according to one embodiment;

[0034] Figure 19 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during deflating, according to one embodiment.

[0035] Figure 20 This is an exploded view of an integrated air pump according to one embodiment;

[0036] Figure 21 This is a longitudinal cross-sectional schematic diagram of an integrated air pump according to one embodiment;

[0037] Figure 22 This is a longitudinal cross-sectional schematic diagram of the sealed structure enclosing the gas passage in an integrated air pump according to one embodiment;

[0038] Figure 23 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during inflation, according to one embodiment.

[0039] Figure 24 A longitudinal cross-sectional schematic diagram of the integrated air pump after the airbag stops inflating, according to one embodiment;

[0040] Figure 25This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during deflating, according to one embodiment.

[0041] Figure 26 This is an exploded view of an integrated air pump according to one embodiment;

[0042] Figure 27 This is a longitudinal cross-sectional schematic diagram of an integrated air pump according to one embodiment;

[0043] Figure 28 This is a longitudinal cross-sectional schematic diagram of the sealed structure enclosing the gas passage in an integrated air pump according to one embodiment;

[0044] Figure 29 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during inflation, according to one embodiment.

[0045] Figure 30 A longitudinal cross-sectional schematic diagram of the integrated air pump after the airbag stops inflating, according to one embodiment;

[0046] Figure 31 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during deflating, according to one embodiment.

[0047] Figure 32 This is an exploded view of an integrated air pump according to one embodiment;

[0048] Figure 33 This is a longitudinal cross-sectional schematic diagram of an integrated air pump according to one embodiment;

[0049] Figure 34 This is a longitudinal cross-sectional schematic diagram of the sealed structure enclosing the gas passage in an integrated air pump according to one embodiment;

[0050] Figure 35 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during inflation, according to one embodiment.

[0051] Figure 36 A longitudinal cross-sectional schematic diagram of the integrated air pump after the airbag stops inflating, according to one embodiment;

[0052] Figure 37 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during deflating, according to one embodiment.

[0053] Figure 38 This is an exploded view of an integrated air pump according to one embodiment;

[0054] Figure 39 This is a longitudinal cross-sectional schematic diagram of an integrated air pump according to one embodiment;

[0055] Figure 40 This is a longitudinal cross-sectional schematic diagram of the sealed structure enclosing the gas passage in an integrated air pump according to one embodiment;

[0056] Figure 41 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during inflation, according to one embodiment.

[0057] Figure 42 A longitudinal cross-sectional schematic diagram of the integrated air pump after the airbag stops inflating, according to one embodiment;

[0058] Figure 43 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during deflating, according to one embodiment.

[0059] Figure 44 This is an exploded view of an integrated air pump according to one embodiment;

[0060] Figure 45 This is a longitudinal cross-sectional schematic diagram of an integrated air pump according to one embodiment;

[0061] Figure 46 This is a longitudinal cross-sectional schematic diagram of the sealed structure enclosing the gas passage in an integrated air pump according to one embodiment;

[0062] Figure 47 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during inflation, according to one embodiment.

[0063] Figure 48 A longitudinal cross-sectional schematic diagram of the integrated air pump after the airbag stops inflating, according to one embodiment;

[0064] Figure 49 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during deflating, according to one embodiment.

[0065] Figure 50 This is an exploded view of an integrated air pump according to one embodiment;

[0066] Figure 51 This is a longitudinal cross-sectional schematic diagram of an integrated air pump according to one embodiment;

[0067] Figure 52 This is a longitudinal cross-sectional schematic diagram of the sealed structure enclosing the gas passage in an integrated air pump according to one embodiment;

[0068] Figure 53 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during inflation, according to one embodiment.

[0069] Figure 54 A longitudinal cross-sectional schematic diagram of the integrated air pump after the airbag stops inflating, according to one embodiment;

[0070] Figure 55 This is a longitudinal cross-sectional schematic diagram of an airbag integrating an air pump during deflating, according to one embodiment.

[0071] 1000. Integrated air pump;

[0072] 1200, Valve;

[0073] 1400, Pressurization unit; 1610, First exhaust valve; 1620, Second exhaust valve;

[0074] 2000, airbag;

[0075] 10. First space; 10a. First air intake; 10b. First exhaust port; 12. First subspace;

[0076] 20. Second space; 20b. Third vent;

[0077] 30. Third Space; 32. Third Subspace;

[0078] 40. Gas passage; 40a. First vent; 40b. Second vent;

[0079] 50. Sealing structure; 52. Sealing element;

[0080] 60. Damping structure; 60a. Fourth air intake; 60b. Fourth exhaust port;

[0081] 3110. Motor;

[0082] 3120, stent;

[0083] 3130. Eccentric body;

[0084] 3140, Rotary shaft; 3141, Ball bearing;

[0085] 3150, pendulum;

[0086] 3160. Piston body; 3161. Piston support; 3162. First piston chamber; 3164. Second piston chamber;

[0087] 3170. Pressing block;

[0088] 3180, One-way valve assembly; 3182, First one-way valve; 3184, Second one-way valve; 3186, Third one-way valve; 3188, Fourth one-way valve;

[0089] 3190, Medium-pressure block;

[0090] 3210. Umbrella petals;

[0091] 3220, silicone sheet;

[0092] 3230, Upper pressure block; 3231, Air outlet;

[0093] 3330, Vent valve assembly; 3331, Sealing diaphragm; 3332, Barrier diaphragm;

[0094] 3340. Internal pressure block;

[0095] 3350, air valve; 3351, ventilation channel;

[0096] 4110. Base plate;

[0097] 4120. Diaphragm;

[0098] 4130. Piezoelectric vibrator assembly;

[0099] 4131. Piezoelectric vibrator; 4132. Frame; 4133. Connecting part;

[0100] 4140. Electrode sheet;

[0101] 4150, Adhesive layer. Detailed Implementation

[0102] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present 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 the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present 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.

[0103] 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.

[0104] 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. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections. Example 1

[0105] Please refer to Figures 1 to 4 , Figures 1 to 4The illustrated embodiment provides a valve 1200 for use in a dynamic blood pressure measurement device, including a first space 10, a venting structure, and a sealing structure 50.

[0106] The first space 10 has a first air inlet 10a for air intake and a first exhaust port 10b for air exhaust. In this embodiment, there are two first exhaust ports 10b. In other embodiments, there may be only one or more first exhaust ports 10b. In this embodiment, the relationship between the first air inlet 10a and the two first exhaust ports 10b is set such that when air is ventilated through the first air inlet 10a at a certain gas flow rate, the gas pressure in the first space 10 can gradually increase. This means that the air intake flow rate of the first space 10 is greater than the air exhaust flow rate of the first space 10. This can be achieved by adjusting the size of the first air inlet 10a and the two first exhaust ports 10b, or by connecting an external device to the first exhaust port 10b to limit the exhaust flow rate of the first exhaust port 10b. Preferably, the first exhaust port 10b is configured such that the time for the pressure of the dynamic blood pressure measuring device to drop from 34.67 kPa (260 mmHg) to 2 kPa (15 mmHg) should not exceed 10 seconds.

[0107] The venting structure has two gas channels 40 and a second space 20 connected to the outside atmosphere. Each gas channel 40 has a first vent 40a and a second vent 40b. The first vent 40a connects to the second space 20, and the second vent 40b connects to the airbag 2000. When the gas channels 40 are closed, the gas inside the airbag 2000 cannot be released to the atmosphere. In this embodiment, because there are two gas channels 40, the requirement for dual-channel venting in dynamic blood pressure measurement can be met. In other embodiments, there may be more gas channels 40.

[0108] The sealing structure 50 is used to isolate and open the communication between the outside atmosphere and the airbag 2000. Structurally, the sealing structure 50 has a first restoring force that returns to its original position after displacement. For example, in this embodiment, the sealing structure 50 includes an elastic wall that serves as the space wall of the first space 10. The elastic wall has a rebound force that returns to its original shape after deformation, and this rebound force is the first restoring force.

[0109] The sealing structure 50 has a first side and a second side opposite to the first side. The first side is located inside the first space 10, and the second side is located outside the first space 10. In this embodiment, the second side is located inside the second space 20. Overall, the sealing structure 50 is subjected to three forces: first, its own first restoring force; second, the force on the first side, the magnitude of which is determined by the gas pressure inside the first space 10; and third, the force on the second side. Since the second side is located inside the second space 20, the magnitude of the force on the second side is affected by the gas pressure inside the second space 20 before the first vent 40a is sealed, which is actually the influence of atmospheric pressure.

[0110] The sealing structure 50 can control its movement relative to at least two first vent ports 40a based on the change in the difference between the sum of the first restoring force and the force on the second side and the force on the first side, so as to close and open at least two first vent ports 40a. Specifically, when the force on the first side is greater than the sum of the first restoring force and the force on the second side of the sealing structure 50, the sealing structure 50 moves toward at least two first vent ports 40a to close at least two first vent ports 40a; while when the force on the first side is less than the sum of the first restoring force and the force on the second side of the sealing structure 50, the sealing structure 50 moves away from at least two first vent ports 40a to open at least two first vent ports 40a. It should be noted that when the sealing structure 50 closes the first vent 40a, it is equivalent to blocking both first vents 40a. Therefore, the force on the second side is affected not only by atmospheric pressure, but also by the gas pressure inside the airbag 2000 and the reaction force of the first vent 40a pressing against the sealing structure 50.

[0111] In this application, the force caused by the external atmosphere is defined as F0, the force on the first side of the sealing structure 50 is defined as F1, the force on the second side of the sealing structure 50 is defined as F2, and the first restoring force of the sealing structure 50 itself is defined as F3; the portion of the force F2 on the second side affected by the gas pressure inside the airbag 2000 is defined as F4, and the reaction force of the first vent 40a against the sealing structure 50 is defined as F5. When the airbag 2000 needs to be inflated, air can be injected into the first space 10 through the first air inlet 10a, causing F1 to gradually increase. Please refer to [reference needed]. Figure 2 When F1 > F2 + F3 = F0 + F3, the sealing structure 50 continues to move towards the two first vent ports 40a until both first vent ports 40a are closed. Figure 3As shown, if the airbag 2000 is being inflated, as long as the condition F1 = F2 + F3 = F0 + F4 + F5 + F3 is met during inflation, the airbag 2000 can remain inflated. When inflation of the airbag 2000 is no longer needed, inflation of the first space 10 is stopped. At this time, the first space 10 is depressurized through the first vent 10b, causing F1 to gradually decrease. When F1 < F2 + F3 = F0 + F4 + F5 + F3, the sealing structure 50 moves away from the first vent 40a, and the gas inside the airbag 2000 naturally escapes through the first vent 40a. If F1 continues to decrease, then F1 < F2 + F3, and the sealing structure 50 continues to move away from the first vent 40a, eventually... Figure 4 The airbag returns to its original position, and the gas inside the airbag 2000 is also discharged to the outside atmosphere through the gas channel 40.

[0112] In some embodiments, the first exhaust port 10b is always open, that is, it is always venting outwards. So as long as the inflation of the first space 10 through the first air inlet 10a is stopped, the gas pressure in the first space 10 will naturally drop. In this way, the depressurization of the airbag 2000 only requires one step of stopping the inflation of the first space 10, which simplifies the operation and further improves safety. Example 2

[0113] Please refer to Figure 5 , Figure 5 The embodiment shown also provides a valve 1200 for use in a dynamic blood pressure measurement device. The difference between this embodiment and the first embodiment is that the venting structure also includes a third space 30 for connecting the air bag 2000. The second vents 40b of the two gas channels 40 are both connected to the third space 30. The gas pressure in the third space 30 is the same as the gas pressure in the air bag 2000. Example 3

[0114] Please refer to Figure 6 , Figure 6 The embodiment shown also provides a valve 1200 applied to a dynamic blood pressure measurement device. The difference between this embodiment and embodiment two is that in embodiment two, the second space 20 is an open space without a space wall. In fact, in embodiment one, the second space 20 is also an open space without a space wall. However, in this embodiment, the space wall of the second space 20 is provided with two third vents 20b that are always open to the outside atmosphere. The two third vents 20b can also ensure that the gas discharged from the airbag 2000 flows to the outside atmosphere. Example 4

[0115] Please refer to Figure 7 , Figure 7The embodiment shown also provides a valve 1200 for use in a dynamic blood pressure measurement device. The difference between this embodiment and embodiment two is that in this embodiment, only the second vent 40b of the gas channel 40 is connected to the third space 30, while the second vent 40b of the other gas channel 40 is directly connected to the airbag 2000. Example 5

[0116] Please refer to Figure 8 , Figure 8 The illustrated embodiment also provides a valve 1200 applied to a dynamic blood pressure measurement device. The difference between this embodiment and Embodiment 2 is that in this embodiment, the first space 10 is divided into two. Specifically, the first space 10 includes two mutually separated first subspaces 12. Each first subspace 12 has a first air inlet 10a and a first exhaust port 10b in its space wall. The sealing structure 50 includes two sealing elements 52, each sealing element 52 corresponding to one first subspace 12. Each sealing element 52 has a first side and a second side opposite to the first side. Each sealing element 52 has a second restoring force to return to its original position after displacement. The first side is located inside the first subspace 12 corresponding to the sealing element 52, and the second side is located outside the first subspace 12 corresponding to the sealing element 52. Each sealing element 52 controls the movement of the sealing element 52 relative to a first vent 40a according to the change in the difference between the sum of the second restoring force and the force on the second side and the force on the first side, so as to close and open the first vent 40a. As can be seen from the above description, the process of sealing the first vent 40a and opening the corresponding sealing element 52 is similar to that in Embodiment 1, so it will not be described in detail here. Example 6

[0117] Please refer to Figure 9 , Figure 9 The illustrated embodiment also provides a valve 1200 for use in a dynamic blood pressure measurement device. The difference between this embodiment and Embodiment 5 is that not only is the first space 10 divided into two, but the third space 30 is also divided into two. Specifically, the third space 30 includes two mutually spaced third subspaces 32, each of which is used to connect to the airbag 2000 and each third subspace 32 connects to a first vent 40a. In some embodiments, when the first space 10 is not divided into two or more, the third space 30 may also be divided into two.

[0118] like Figure 10 As shown, in some embodiments, although the third space 30 is not divided into more than two, it can still be connected to the airbag 2000 through two channels.

[0119] Example 7

[0120] Please refer to Figure 11 , Figure 11 The illustrated embodiment also provides a valve 1200 applied to a dynamic blood pressure measurement device. The difference between this embodiment and Embodiment 1 is that in this embodiment, the venting structure further includes a third space 30 for connecting the airbag 2000. The first vent 40a of the gas channel 40 connects to the third space 30, while the second vent 40b of the gas channel 40 connects to the second space 20. In addition, the second side of the sealing structure 50 is not located in the second space 20, but in the third space 30. The process of sealing structure 50 closing and opening the first vent 40a is similar to that in Embodiment 1. The difference is that in Embodiment 1, when the sealing structure 50 closes the first vent 40a, the entire gas channel 40 is isolated from the outside atmosphere. However, in this embodiment, when the sealing structure 50 closes the first vent 40a, the gas channel 40 is still connected to the outside atmosphere. Example 8

[0121] Please refer to Figures 1 to 11 , Figures 1 to 11 The illustrated embodiment also provides a valve 1200 for use in a dynamic blood pressure measurement device. The difference between this embodiment and the above embodiments one to seven is that the valve 1200 further includes a damping structure 60. The damping structure 60 has a fourth air inlet 60a and a fourth exhaust port 60b. The damping structure 60 is connected from the fourth air inlet 60a to the fourth exhaust port 60b. The fourth air inlet 60a and the first air inlet 10a are connected to the same pressurizing unit 1400 that provides compressed gas. The fourth exhaust port 60b is used to connect to the airbag 2000. The pressurizing unit 1400 in this application is used to compress the gas and deliver it to the valve 1200 and / or the airbag 2000.

[0122] In this embodiment, by making reasonable use of the damping structure 60, it can also be ensured that during the process of the pressurizing unit 1400 delivering compressed gas to the valve 1200 and the airbag 2000, the sealing structure 50 first seals the two first vent ports 40a before inflating the airbag 2000. This will be explained in detail below.

[0123] In this embodiment, a damping structure 60 with a minimum conduction pressure Pmin can be used. That is, when the pressure P on the left side of the damping structure 60 is greater than Pmin, the damping structure 60 can conduct unidirectionally from the fourth air inlet 60a to the fourth exhaust outlet 60b. Assume that the minimum pressure P1min required for the sealing structure 50 to move to the position of closing the first vent 40a is required in the first space 10. Set Pmin>P1min; set the pressure in the first space 10 to be P1. When Pmin>P1>P1min, the sealing structure 50 closes the first vent 40a. At this time, the damping structure 60 is not yet conducting, so the airbag 2000 has not yet started to inflate. As the compressed gas is delivered, P1 gradually increases until P1>Pmin, the damping structure 60 conducts, and the airbag 2000 begins to inflate.

[0124] In addition, another advantage of setting the damping structure 60 is that when the airbag 2000 is inflated after the damping structure 60 is turned on, as long as the pressurization unit 1400 continues to deliver gas, it can be ensured that the force on the first side of the sealing structure 50 will always be no less than the sum of the first restoring force of the sealing structure 50 and the force on the second side. That is, through the damping structure 60, the excessive gas pressure in the airbag 2000 can be avoided from "breaking open" the sealing structure 50 and sealing the first vent 40a.

[0125] In some embodiments, the damping structure 60 can be a one-way valve, with the direction of the one-way valve pointing from the fourth air inlet 60a to the fourth exhaust outlet 60b.

[0126] As described above, the fourth exhaust port 60b connects to the airbag 2000. Here, "connection" should be understood in a broad sense. In Embodiments 1 to 7, the fourth exhaust port 60b can directly lead out a channel to connect with the airbag 2000. In Embodiments 2 to 7, the fourth exhaust port 60b can also indirectly connect to the airbag 2000 by connecting with the third space 30. For example, please refer to... Figure 8 and Figure 12 ,exist Figure 8 The fourth exhaust port 60b connects to the third space 30, which in turn connects to the airbag 2000. Figure 12 Among them, the fourth exhaust port 60b is directly connected to the airbag 2000.

[0127] In fact, the implicit meaning of this embodiment eight is that the damping structure 60 is not necessary. Example 9

[0128] Please refer to Figures 1 to 12 This embodiment provides an integrated air pump 1000, including a pressurizing unit 1400 and a valve 1200 from any one of the embodiments 1 to 8 above. The pressurizing unit 1400 is connected to the valve 1200 to provide compressed gas to the valve 1200.

[0129] It should be noted that in Embodiments 1 to 7, two pressurization units 1400 can also be used, one of which is connected to the first air inlet 10a and the other is connected to the airbag 2000; of course, one pressurization unit 1400 can also be used to connect the first air inlet 10a and the airbag 2000 at the same time. For example, in Embodiment 8, only the pressurization unit 1400 is used to connect the first air inlet 10a and the fourth air inlet 60a.

[0130] The pressurization unit 1400 can be any mature pressurization unit 1400 available on the market, as long as it can compress and transport gas. Example 10

[0131] Please refer to Figures 1 to 12 This embodiment provides an integrated air pump 1000. The difference between this embodiment and Embodiment Nine is that the integrated air pump 1000 in this embodiment further includes two first exhaust valves 1610. Each first exhaust valve 1610 is connected to a first exhaust port 10b, and the first exhaust valve 1610 connects the first exhaust port 10b to the outside atmosphere. By setting the exhaust flow rate of the first exhaust valve 1610 itself, the sum of the gas flow rates flowing from the first exhaust port 10b to the first exhaust valve 1610 can be less than the gas flow rate of at least one first air inlet 10a. For example, the first exhaust valve 1610 can allow only a small amount of gas to be discharged from the first exhaust port 10b to the outside atmosphere. This can ensure that the gas pressure in the first space 10, which is supplied by the pressurization unit 1400, can continuously rise or maintain a certain level.

[0132] In one embodiment, the first exhaust valve 1610 may be configured as a small exhaust channel such that the sum of the gas flow rates through the first exhaust port 10b is less than the gas flow rate through at least one first air inlet 10a.

[0133] It should be noted that when the damping structure 60 is not used, the airbag 2000 can share the same pressurization unit with the first space 10, or it can use an independent pressurization unit. Moreover, when the airbag 2000 uses an independent pressurization unit, the pressurization sequence of the first space 10 and the airbag 2000 can be controlled so that the first vent 40a is closed first, and then the airbag 2000 is pressurized. Example 11

[0134] Please refer to Figure 13This embodiment provides an integrated air pump 1000. The difference between this embodiment and the previous embodiment is that the integrated air pump 1000 in this embodiment further includes a second exhaust valve 1620. Two first exhaust ports 10b are respectively connected to the second exhaust valve 1620, which connects the first exhaust ports 10b to the outside atmosphere. The gas flow rate through the first exhaust ports 10b to the second exhaust valve 1620 is less than the gas flow rate through at least one first air inlet 10a. That is, in this embodiment, the two first exhaust ports 10b are connected to the outside atmosphere through the same second exhaust valve 1620.

[0135] In other embodiments, the exhaust flow rate of the first exhaust port 10b can be controlled or set in other ways. For example, the pressurization unit 1400 may be provided with a reverse low internal resistance channel, which connects the first exhaust port 10b with the outside atmosphere. The reverse low internal resistance channel also restricts the exhaust flow rate of the first exhaust port 10b to the outside atmosphere. Example 12

[0136] This embodiment provides a blood pressure measuring device, particularly a dynamic blood pressure measuring device, which includes an airbag 2000 and a pressure sensor (not shown in the figure) for detecting air pressure, as well as an integrated air pump 1000 in any one of the embodiments nine to eleven above, with the airbag 2000 connected to the integrated air pump 1000. Example 13

[0137] This embodiment also provides a blood pressure measuring device, particularly a dynamic blood pressure measuring device, which includes an airbag 2000, an air pump, and a pressure sensor for detecting air pressure, as well as any one of the valves 1200 in Embodiments 1 to 8. The air pump is connected to the airbag 2000 via the valve 1200, and the function of the air pump is to deliver compressed gas to the airbag 2000. Example 14

[0138] Please refer to Figures 14 to 19 This embodiment provides an integrated air pump 1000, including a motor 3110, a bracket 3120, screws for fixing the bracket 3120 to the motor 3110, an eccentric body 3130, a rotating shaft 3140, a ball bearing 3141, a rocker arm 3150, a piston bracket 3161, a piston body 3160, a lower pressure block 3170, a one-way valve assembly 3180, a middle pressure block 3190, a parapet 3210, a silicone sheet 3220, an upper pressure block 3230, a vent valve assembly 3330, and an air nozzle 3350.

[0139] The eccentric body 3130 is fixed to the central shaft of the motor 3110, and an oblique hole is eccentrically provided on the eccentric body 3130. One end of the rotating shaft 3140 is inserted into the oblique hole and is obliquely eccentric to the central shaft of the motor 3110. The rocker arm 3150 has a central hole and a protrusion. The other end of the rotating shaft 3140 is inserted into the central hole, and the protrusion of the rocker arm 3150 is inserted into the tight connection hole on the lower side of the piston body 3160.

[0140] A piston support 3161 is mounted on a support 3120, and a piston body 3160 is mounted on the piston support 3161. The piston body 3160 includes a first piston chamber 3162 and a second piston chamber 3164. A lower pressure block 3170 presses against the piston body 3160 and covers the two piston chambers to form a sealed cavity.

[0141] The intermediate pressure block 3190 and the lower pressure block 3170 clamp the one-way valve assembly 3180, together forming the piston's intake valve and exhaust valve. Specifically, the one-way valve assembly 3180 includes a first one-way valve 3182, a second one-way valve 3184, a third one-way valve 3186, and a fourth one-way valve 3188. The first one-way valve disc 3182, the intermediate pressure block 3190, and the lower pressure block 3170 together form the first intake valve of the first piston chamber 3162 for connecting to the outside atmosphere; the second one-way valve disc 3184, the intermediate pressure block 3190, and the lower pressure block 3170 together form the first outlet valve of the first piston chamber 3162 for outputting compressed gas; the fourth one-way valve disc 3188, the intermediate pressure block 3190, and the lower pressure block 3170 together form the second intake valve of the second piston chamber 3164 for connecting to the outside atmosphere; and the third one-way valve disc 3186, the intermediate pressure block 3190, and the lower pressure block 3170 together form the second outlet valve of the second piston chamber 3164 for outputting compressed gas.

[0142] As the motor 3110 rotates, the rocker arm 3150 abuts against the bottom side of the chamber wall of the first piston chamber 3162 and the second piston chamber 3164 to form an undulating surface. The higher part of the undulating surface successively compresses the first piston chamber 3162 or the second piston chamber 3164, and the lower part of the undulating surface successively expands the space inside the second piston chamber 3164 or the first piston chamber 3162, thereby completing the delivery of compressed gas or the intake of the outside atmosphere.

[0143] It should be noted that although a one-way valve assembly 3180 is used in this embodiment, the airflow direction within the one-way valve is not absolutely unidirectional. Taking the first intake valve composed of the first one-way valve 3182 as an example, it should be understood that it is easy for outside air to flow from the first intake valve to the first piston chamber 3162. However, when the air pressure inside the first piston chamber 3162 is greater than the outside air pressure, the gas inside the first piston chamber 3162 still leaks to the outside air from the first intake valve in a small amount or at a very low flow rate. This is different from the one-way valve in conventional air pumps. In other words, the first intake valve, the first piston chamber 3162, and the first exhaust valve of this integrated air pump 1000 also form a first exhaust valve 1610, and the second intake valve, the second piston chamber 3164, and the second exhaust valve form another first exhaust valve 1610. Preferably, the first exhaust port 10b is configured such that after the integrated air pump 1000 stops inflating, the time it takes for the pressure of the airbag 2000 to drop from 34.67 kPa (260 mmHg) to 2 kPa (15 mmHg) should not exceed 10 seconds.

[0144] like Figure 15 As shown, the silicone sheet 3220 is sandwiched between the intermediate pressure block 3190 and the upper pressure block 3230. The silicone sheet 3220, the intermediate pressure block 3190, and the upper pressure block 3230 all include multiple through holes. The lower pressure block 3170, the one-way valve assembly 3180, the intermediate pressure block 3190, the silicone sheet 3220, the upper pressure block 3230, and the vent valve assembly 3330 enclose a first space 10. The vent ports of the first vent valve corresponding to the second one-way valve 3184 and the second vent valve corresponding to the third one-way valve 3186 are both connected to the first space 10. The intermediate pressure block 3190, the silicone sheet 3220 and the upper pressure block 3230 form a gas chamber; the first space 10 and the gas chamber are connected through a through hole on the intermediate pressure block 3190, and the umbrella petal 3210 is installed on the intermediate pressure block 3190 and extends into the gas chamber, and the umbrella petal 3210 isolates the communication between the first space 10 and the gas chamber.

[0145] The deflation valve assembly 3330 covers the upper pressure block 3230. The deflation valve assembly 3330 includes two elastic sealing diaphragms 3331 and a third vent 20b communicating with the outside atmosphere. The nozzle 3350 includes a ventilation channel 3351 and a gas channel 40; the gas chamber communicates with the ventilation channel 3351 through through holes on the upper pressure block 3230 and the deflation valve assembly 3330. The nozzle 3350 is fastened onto the deflation valve assembly 3330 and together with the deflation valve assembly 3330, forms two second spaces 20. The gas channel 40 is used to connect the airbag 2000 and the second spaces 20. Each second space 20 contains a sealing diaphragm 3331, and a third vent 20b is located on the space wall of the second space 20. The sealing diaphragm 3331 isolates the communication between the first space 10 and the second space 20. Furthermore, the sealing diaphragm 3331 can block the communication between the second space 20 and the airbag 2000 by sealing the gas passage 40. In this embodiment, the minimum gas pressure in the first space 10 required for the umbrella petal 3210 to open the through hole of the pressure block 3190 is greater than the minimum gas pressure in the first space 10 required for the sealing diaphragm 3331 to seal the gas passage 40.

[0146] The working process of this embodiment is briefly described as follows:

[0147] Please refer to Figure 15 During the inflation phase, that is, during the inflation of the airbag 2000, the initial state is to compress the second piston chamber 3164.

[0148] Please refer to Figure 16 When the motor 3110 starts rotating, the first piston chamber 3162 expands, the first intake valve opens, and outside air enters the first piston chamber 3162 along the path shown by the arrow; simultaneously, the second piston chamber 3164 contracts, the gas in the second piston chamber 3164 is compressed, the second exhaust valve opens, and the compressed gas enters the first space 10 in the direction shown by the arrow. Next, the motor 3110 continues to rotate, the second piston chamber 3164 expands, the second intake valve opens, and outside air enters the second piston chamber 3164; simultaneously, the first piston chamber 3162 contracts, the gas in the first piston chamber 3162 is compressed, the first exhaust valve opens, and the compressed gas enters the first space 10. This cycle repeats continuously, with compressed gas continuously entering the first space 10. Because the second space 20 is connected to the outside atmosphere, the gas pressure in the first space 10 will rise to a level greater than that in the second space 20. When the force exerted by the gas in the first space 10 on the sealing diaphragm 3331 is greater than the sum of the self-restoring force of the sealing diaphragm 3331 and the force exerted by the second space 20 on the sealing diaphragm 3331, the sealing diaphragm 3331 moves toward the gas channel 40 until it closes the gas channel 40. As the gas pressure in the first space 10 continues to rise, the umbrella petal 3210 opens the through hole of the intermediate pressure block 3190, and the gas flows along... Figure 17The path indicated by the arrow leads to airbag 2000, inflating it; during inflation, the gas pressure within gas channel 40 also increases. It should be noted that... Figure 16 , Figure 17 Only the airflow direction from the atmosphere to the airbag 2000 during pressurization is shown. In reality, there is also a reverse airflow during pressurization, but the flow rate of the reverse airflow is much smaller than that of the pressurizing airflow.

[0149] Please refer to Figure 18 When motor 3110 stops rotating, the first piston chamber 3162 and the second piston chamber 3164 no longer draw gas from the outside atmosphere. The gas in the first space 10 flows to the outside atmosphere along the path shown by the arrow in the figure, so the gas pressure in the first space 10 continues to decrease. As the gas pressure in the first space 10 continues to decrease, firstly, the umbrella petal 3210 closes the through hole of the intermediate pressure block 3190; then... Figure 19 As shown, the sealing diaphragm 3331 returns to its original position under the combined action of its restoring force and the gas pressure of the gas channel 40. The gas channel 40 is connected to the second space 20, and the gas in the airbag 2000 can flow to the outside atmosphere through the third vent 20b, thus completing the depressurization of the airbag 2000. Example 15

[0150] Please refer to Figures 20 to 25 , Figures 20 to 25 The illustrated embodiment provides an integrated air pump 1000. The difference between this integrated air pump 1000 and Embodiment Fourteen is that it further includes an internal pressure block 3340, and the structure of the air nozzle 3350 differs from that of Embodiment Fourteen, as will be described in detail below.

[0151] The inner pressure block 3340 is located between the air nozzle 3350 and the deflation valve assembly 3330. The inner pressure block 3340 and the deflation valve assembly 3330 enclose a second space 20, and the inner pressure block 3340 and the air nozzle 3350 form a third space 30. The inner pressure block 3340 has a gas passage 40 that connects the second space 20 and the third space 30. Furthermore, in this embodiment, the air nozzle 3350 is provided with a ventilation channel 3351 for connecting the airbag 2000 and the third space 30.

[0152] The working process of this embodiment is briefly described as follows:

[0153] Please refer to Figure 21 During the inflation phase, that is, during the inflation of the airbag 2000, the initial state is to compress the second piston chamber 3164.

[0154] Please refer to Figure 22When the motor 3110 starts rotating, the first piston chamber 3162 expands, the first intake valve opens, and outside air enters the first piston chamber 3162 along the path shown by the arrow; simultaneously, the second piston chamber 3164 contracts, the gas in the second piston chamber 3164 is compressed, the second exhaust valve opens, and the compressed gas enters the first space 10 in the direction shown by the arrow. Next, the motor 3110 continues to rotate, the second piston chamber 3164 expands, the second intake valve opens, and outside air enters the second piston chamber 3164 along the path shown by the arrow; simultaneously, the first piston chamber 3162 contracts, the gas in the first piston chamber 3162 is compressed, the first exhaust valve opens, and the compressed gas also enters the first space 10 in the direction shown by the arrow. This cycle repeats continuously, with compressed gas continuously entering the first space 10 in the direction shown by the arrow. Because the second space 20 is connected to the outside atmosphere, the gas pressure in the first space 10 will rise to a level greater than that in the second space 20. When the force exerted by the gas in the first space 10 on the sealing diaphragm 3331 is greater than the sum of the self-restoring force of the sealing diaphragm 3331 and the force exerted by the second space 20 on the sealing diaphragm 3331, the sealing diaphragm 3331 moves toward the gas channel 40 until the gas channel 40 is closed. As the gas pressure in the first space 10 continues to rise, the umbrella petal 3210 opens the through hole of the intermediate pressure block 3190, and the gas flows along... Figure 23 The path indicated by the arrow leads into the airbag 2000, inflating the airbag 2000; during the inflation of the airbag 2000, the gas pressure in the gas channel 40 also increases.

[0155] Please refer to Figure 24 When motor 3110 stops rotating, the first piston chamber 3162 and the second piston chamber 3164 no longer draw gas from the outside atmosphere. The gas in the first space 10 flows to the outside atmosphere along the path shown by the arrow in the figure, so the gas pressure in the first space 10 continues to decrease. As the gas pressure in the first space 10 continues to decrease, firstly, the umbrella petal 3210 will close the through hole of the intermediate pressure block 3190, and then... Figure 25 As shown, the sealing diaphragm 3331 returns to its original position under the combined action of its restoring force and the gas pressure of the gas channel 40. The gas channel 40 is connected to the second space 20, and the gas in the airbag 2000 can flow to the outside atmosphere through the third vent 20b, thus completing the depressurization of the airbag 2000. Example 16

[0156] Please refer to Figures 26 to 31 , Figures 26 to 31 The illustrated embodiment provides an integrated air pump 1000. The difference between this embodiment and Embodiment Fifteen is that this embodiment lacks the intermediate pressure block 3190, umbrella petal 3210, and silicone sheet 3220, and the structures of the upper pressure block 3230 and the vent valve assembly 3330 differ from those in Embodiment Fifteen. A detailed explanation follows.

[0157] In this embodiment, as Figure 27 As shown, the lower pressure block 3170, the one-way valve assembly 3180, the upper pressure block 3230, and the vent valve assembly 3330 enclose a first space 10; the vent ports of the first vent valve corresponding to the second one-way valve 3184 and the second vent valve corresponding to the third one-way valve 3186 are connected to the first space 10. The upper pressure block 3230 includes two vent holes 3231 and a through hole; the upper surface of the upper pressure block 3230 also has a protrusion.

[0158] The vent valve assembly 3330 includes a barrier diaphragm 3332 and a sealing diaphragm 3331. The barrier diaphragm 3332 has a through hole. An inner pressure block 3340 is located between the vent valve assembly 3330 and the nozzle 3350. The inner pressure block 3340 and the vent valve assembly 3330 form two spaces, one being a second space 20 and the other a gas chamber communicating with a third space 30. The inner pressure block 3340 connects the third space 30 and the second space 20 through two gas channels 40. The barrier diaphragm 3332 is located within the gas chamber and adheres to the protrusion under its own restoring force. The through hole of the barrier diaphragm 3332 is sealed by the protrusion. The barrier diaphragm 3332 can open the through hole through the pressure difference between the gas on both sides. The sealing diaphragm 3331 is located within the second space 20. In this embodiment, the minimum gas pressure in the first space 10 required for the blocking diaphragm 3332 to open the through hole is greater than the minimum gas pressure in the first space 10 required for the sealing diaphragm 3331 to close the gas channel 40.

[0159] The working process of this embodiment is briefly described as follows:

[0160] Please refer to Figure 27 During the inflation phase, that is, during the inflation of the airbag 2000, the initial state is to compress the second piston chamber 3164.

[0161] Please refer to Figure 28When the motor 3110 starts rotating, the first piston chamber 3162 expands, the first intake valve opens, and outside air enters the first piston chamber 3162 along the path shown by the arrow; simultaneously, the second piston chamber 3164 contracts, the gas in the second piston chamber 3164 is compressed, the second exhaust valve opens, and the compressed gas enters the first space 10 in the direction shown by the arrow. Next, the motor 3110 continues to rotate, the second piston chamber 3164 expands, the second intake valve opens, and outside air enters the second piston chamber 3164; simultaneously, the first piston chamber 3162 contracts, the gas in the first piston chamber 3162 is compressed, the first exhaust valve opens, and the compressed gas enters the first space 10. This cycle repeats continuously, with compressed gas continuously entering the first space 10. Because the second space 20 is connected to the outside atmosphere, the gas pressure in the first space 10 will rise to a level greater than that in the second space 20. When the force exerted by the gas in the first space 10 on the sealing diaphragm 3331 is greater than the sum of the self-restoring force of the sealing diaphragm 3331 and the force exerted by the second space 20 on the sealing diaphragm 3331, the sealing diaphragm 3331 moves towards the gas channel 40 until the gas channel 40 is closed. As the gas pressure in the first space 10 continues to rise, the blocking diaphragm 3332 opens the through hole, and the compressed gas in the first space 10 flows along... Figure 29 The path indicated by the arrow leads into the gas chamber and the third space 30, and then into the airbag 2000, where the airbag 2000 is inflated. During the inflation of the airbag 2000, the gas pressure in the gas channel 40 also increases.

[0162] Please refer to Figure 30 When motor 3110 stops rotating, the first piston chamber 3162 and the second piston chamber 3164 no longer draw gas from the outside atmosphere. The gas in the first space 10 flows to the outside atmosphere along the path shown by the arrow in the figure, so the gas pressure in the first space 10 continues to decrease. As the gas pressure in the first space 10 continues to decrease, the blocking diaphragm 3332 will first return to its original position, thereby sealing its own through-hole; then... Figure 31 As shown, the sealing diaphragm 3331 returns to its original position under the combined action of its restoring force and the gas pressure of the gas channel 40. The gas channel 40 is connected to the second space 20, and the gas in the airbag 2000 can flow to the outside atmosphere through the third vent 20b, thus completing the depressurization of the airbag 2000. Example 17

[0163] Please refer to Figures 32 to 37 , Figures 32 to 37The illustrated embodiment provides an integrated air pump 1000. The difference between this embodiment and Embodiment Sixteen lies in the structure of the one-way valve assembly 3180: the second one-way valve 3184 and the third one-way valve 3186 are isolated, resulting in the air outlets of the first and second air outlet valves not being interconnected. This will be explained in detail below.

[0164] In this embodiment, as Figure 33 As shown, the lower pressure block 3170, the one-way valve assembly 3180, the upper pressure block 3230, and the vent valve assembly 3330 enclose a first space 10; the vent of the second vent valve corresponding to the third one-way valve 3186 is connected to the first space 10. The upper pressure block 3230 includes two vent holes 3231 and a through hole; the upper surface of the upper pressure block 3230 also has a protrusion.

[0165] The vent valve assembly 3330 includes a barrier diaphragm 3332 and a sealing diaphragm 3331. The barrier diaphragm 3332 has a through hole. An inner pressure block 3340 is located between the vent valve assembly 3330 and the nozzle 3350. The inner pressure block 3340 and the vent valve assembly 3330 form two spaces, one being a second space 20 and the other a gas chamber communicating with a third space 30. The inner pressure block 3340 connects the third space 30 and the second space 20 through two gas channels 40. The barrier diaphragm 3332 is located within the gas chamber and adheres to the protrusion under its own restoring force. The through hole of the barrier diaphragm 3332 is sealed by the protrusion. The barrier diaphragm 3332 can open the through hole through the pressure difference between the gas on both sides. The sealing diaphragm 3331 is located within the second space 20.

[0166] The working process of this embodiment is briefly described as follows:

[0167] Please refer to Figure 33 During the inflation phase, that is, during the inflation of the airbag 2000, the initial state is to compress the second piston chamber 3164.

[0168] Please refer to Figure 34 When the motor 3110 starts rotating, the first piston chamber 3162 expands, the first intake valve opens, and outside air enters the first piston chamber 3162 along the path shown by the arrow; simultaneously, the second piston chamber 3164 contracts, the gas in the second piston chamber 3164 is compressed, the second exhaust valve opens, and the compressed gas enters the first space 10 in the direction shown by the arrow. Next, the motor 3110 continues to rotate, the second piston chamber 3164 expands, the second intake valve opens, and outside air enters the second piston chamber 3164; simultaneously, the first piston chamber 3162 contracts, the gas in the first piston chamber 3162 is compressed, the first exhaust valve opens, and the compressed gas pushes the barrier diaphragm 3332 away from the boss, along... Figure 35The path indicated by the arrow leads into the third space 30, and then into the airbag 2000, where the airbag 2000 is inflated; this cycle repeats. Since the second space 20 is connected to the outside atmosphere, the gas pressure in the first space 10 will rise to a level greater than that in the second space 20. When the force exerted by the gas in the first space 10 on the sealing diaphragm 3331 is greater than the sum of the self-restoring force of the sealing diaphragm 3331 and the force exerted by the second space 20 on the sealing diaphragm 3331, the sealing diaphragm 3331 moves toward the gas channel 40 until the gas channel 40 is closed. During the inflation of the airbag 2000, the gas pressure in the gas channel 40 will also rise accordingly.

[0169] Please refer to Figure 36 When motor 3110 stops rotating, the first piston chamber 3162 and the second piston chamber 3164 no longer draw in gas from the outside atmosphere, and the blocking diaphragm 3332 returns to its original position, thus sealing its own through-hole; the gas in the first space 10 flows to the outside atmosphere along the path shown by the arrow in the figure, so the gas pressure in the first space 10 continues to decrease; as the gas pressure in the first space 10 continues to decrease, as... Figure 37 As shown, the sealing diaphragm 3331 returns to its original position under the combined action of its restoring force and the gas pressure of the gas channel 40. The gas channel 40 is connected to the second space 20, and the gas in the airbag 2000 can flow to the outside atmosphere through the third vent 20b, thus completing the depressurization of the airbag 2000.

[0170] It should be noted that in this embodiment, the vent valve assembly 3330 may only include the sealing diaphragm 3331, and the blocking diaphragm 3332 may be replaced by a large through hole; that is, compressed gas is directly output from the first piston chamber 3162 to the third space 30 through the first vent valve. Example 18

[0171] Please refer to Figures 38 to 43 , Figures 38 to 43The illustrated embodiment provides an integrated air pump 1000. This integrated air pump 1000 is constructed by sequentially stacking and sealing a base plate 4110, a diaphragm 4120, a piezoelectric vibrator assembly 4130, an electrode plate 4140, an upper pressure block 3230, a vent valve assembly 3330, and an air nozzle 3350. The piezoelectric vibrator assembly 4130 includes a piezoelectric vibrator 4131, a frame 4132, and several connecting portions 4133. In this embodiment, the piezoelectric vibrator assembly 4130 includes four connecting portions 4133. The piezoelectric vibrator 4131 includes a piezoelectric element and a metal electrode plate. The metal electrode plate, frame 4132, and connecting portions 4133 are electrically connected. In practice, in this embodiment, the metal electrode plate, frame 4132, and connecting portions 4133 are integrally formed from a metal plate. Preferably, a metal plate with a Young's modulus of 100 GPa or higher is used as the metal electrode plate for the metal electrode plate, frame 4132, and connecting portions 4133.

[0172] like Figure 39 As shown, the base plate 4110 is used to support the entire integrated air pump 1000; the upper surface of the base plate 4110 is provided with four grooves, and each groove has a through hole extending through the base plate 4110 at its outward end, and the inward end of the four grooves is connected to the same groove.

[0173] A diaphragm 4120 is laid on a base plate 4110, and the diaphragm 4120 has air inlets communicating with the grooves of the base plate 4110. In some embodiments, to prevent the air inlets of the diaphragm 4120 from being blocked during exhaust from the first space, the diaphragm 4120 has at least two air inlets communicating with the grooves. The frame 4132 of the piezoelectric vibrator assembly 4130 is sealed on the diaphragm 4120, and the piezoelectric vibrator 4131 has its perimeter communicating with the upper and lower sides. One side of the piezoelectric vibrator 4131 is an electrode, and the other side is connected to an electrode plate 4140. A variable voltage is applied to the piezoelectric vibrator 4131 through the two electrodes, causing the piezoelectric unit to undergo radial deformation. Further, the piezoelectric vibrator 4131 undergoes bending deformation, thereby generating vibration. First, the piezoelectric vibrator 4131 deforms towards the diaphragm 4120 and pushes the diaphragm 4120 to deform. Subsequently, the piezoelectric vibrator 4131 deforms away from the diaphragm 4120. Due to the lag in deformation of the diaphragm 4120, the volume of the pump chamber between the piezoelectric vibrator 4131 and the diaphragm 4120 expands, and atmospheric air is drawn in through the pores of the diaphragm 4120. The piezoelectric vibrator 4131 deforms again toward the diaphragm 4120, compressing the gas in the pump chamber. Since the piezoelectric vibrator 4131 is connected to the upper and lower sides and its size is much larger than the diameter of the air inlet of the diaphragm 4120, atmospheric air is drawn in through the air inlet of the diaphragm 4120, forming compressed gas and delivering compressed gas.

[0174] The upper pressure block 3230 includes a through hole connecting the upper and lower sides of the upper pressure block 3230 and an air outlet 3231. The upper surface of the upper pressure block 3230 also has a protrusion. The vent valve assembly 3330 includes a sealing diaphragm 3331 and a barrier diaphragm 3332. The upper pressure block 3230 and the piezoelectric vibrator assembly 4130 are both bonded and fixed to the electrode sheet 4140 through an adhesive layer 4150. The barrier diaphragm 3332 is provided with a through hole connecting the upper and lower sides of the barrier diaphragm 3332. The vent valve assembly 3330 and the upper pressure block 3230 are used to be stacked on the piezoelectric vibrator assembly 4130 in sequence. The sealing diaphragm 3331 covers the air outlet 3231 of the upper pressure block 3230. The barrier diaphragm 3332 adheres to the protrusion under the action of its own restoring force, thereby having its through hole sealed by the protrusion. The diaphragm 4120, the piezoelectric vibrator assembly 4130, the electrode sheet 4140, the upper pressure block 3230, and the vent valve assembly 3330 enclose and form the first space 10.

[0175] The nozzle 3350 includes a ventilation channel 3351 and two gas channels 40. The nozzle 3350 is fastened to the vent valve assembly 3330, forming a third space 30 with the vent valve assembly 3330. The third space 30 communicates with the ventilation channel 3351. The gas channels 40 communicate with the outside atmosphere. The sealing diaphragm 3331 can close the gas channels 40. When the blocking diaphragm 3332 opens its own through hole, the first space 10 communicates with the third space 30. In this embodiment, the minimum gas pressure in the first space 10 required for the blocking diaphragm 3332 to open its through hole is greater than the minimum gas pressure in the first space 10 required for the sealing diaphragm 3331 to close the gas channels 40.

[0176] The working process of this embodiment is briefly described as follows:

[0177] Please refer to Figure 40 When the piezoelectric vibrator 4131 is energized, air from the outside atmosphere enters the first space 10 along the path indicated by the arrow, and the gas pressure inside the first space 10 gradually increases. As the gas pressure inside the first space 10 increases, the sealing diaphragm 3331 first seals the gas channel 40; then, as... Figure 41 As shown, the blocking diaphragm 3332 moves away from the protrusion, opening its own through hole, allowing compressed gas to enter the third space 30 from the first space 10, and then enter the airbag 2000 through the ventilation channel 3351.

[0178] Please refer to Figure 42When the piezoelectric vibrator 4131 is de-energized, the gas in the first space 10 flows towards the outside atmosphere along the path indicated by the arrow, causing a decrease in the gas pressure within the first space 10. As the gas pressure in the first space 10 decreases, the blocking diaphragm 3332 first returns to its original position, isolating the first space 10 and the third space 30. Then, as the gas pressure in the first space 10 further decreases, the sealing diaphragm 3331 also returns to its original position, connecting the third space 30 with the gas channel 40, and the gas in the airbag 2000 flows along... Figure 43 The path indicated by the middle arrow is discharged into the outside atmosphere through the third space 30 and the gas channel 40. Example 19

[0179] Please refer to Figures 44 to 49 , Figures 44 to 49 The illustrated embodiment provides an integrated air pump 1000. The difference between this embodiment and Embodiment 18 lies in the structures of the upper pressure block 3230, the vent valve assembly 3330, and the air nozzle 3350. Specifically, the positions of the through hole and the air outlet 3231 in the upper pressure block 3230 have changed; the positions of the sealing diaphragm 3331 and the blocking diaphragm 3332 in the vent valve assembly 3330 have changed; and the positions of the two gas channels 40 in the air nozzle 3350 have changed. These changes can be achieved by… Figure 44 , Figure 45 It's very obvious in the text.

[0180] The working process of this embodiment is briefly described as follows:

[0181] When the piezoelectric oscillator assembly 4130 is energized, the air from the outside atmosphere moves along... Figure 46 The path indicated by the middle arrow leads into the first space 10; the gas pressure within the first space 10 gradually increases. As the gas pressure within the first space 10 increases, the sealing diaphragm 3331 first seals the gas channel 40; then, as... Figure 47 As shown, the blocking diaphragm 3332 moves away from the protrusion, opening its own through hole, allowing compressed gas to enter the third space 30 from the first space 10, and then enter the airbag 2000 through the ventilation channel 3351.

[0182] Please refer to Figure 48 When the piezoelectric vibrator 4131 is de-energized, the gas in the first space 10 flows towards the outside atmosphere along the path indicated by the arrow, causing a decrease in the gas pressure within the first space 10. As the gas pressure in the first space 10 decreases, the blocking diaphragm 3332 first returns to its original position, isolating the first space 10 and the third space 30. Then, as the gas pressure in the first space 10 further decreases, the sealing diaphragm 3331 also returns to its original position, connecting the third space 30 with the gas channel 40, and the gas in the airbag 2000 flows along... Figure 49The path indicated by the middle arrow is discharged into the outside atmosphere through the third space 30 and the gas channel 40. Example 20

[0183] Please refer to Figures 50 to 55 , Figures 50 to 55 The illustrated embodiment provides an integrated air pump 1000. The difference between this embodiment and Embodiment Eighteen lies in the structure of the vent valve assembly 3330 and the air nozzle 3350. For details, please refer to... Figure 50 , Figure 51 The second vent 40b of the gas passage 40 is connected to the airbag 2000; the nozzle 3350 and the deflation valve assembly 3330 enclose a second space 20; a third vent 20b is provided on the nozzle 3350 to connect the second space 20 with the outside atmosphere; the second space 20 is separated from the ventilation passage 3351, and the second space 20 is connected to the first vent 40a.

[0184] The working process of this embodiment is briefly described as follows:

[0185] When the piezoelectric vibrator 4131 is energized, the air from the outside atmosphere moves along... Figure 52 The gas enters the first space 10 via the path indicated by the middle arrow, and the gas pressure within the first space 10 gradually increases. As the gas pressure within the first space 10 increases, the sealing diaphragm 3331 first seals the gas channel 40, thereby cutting off the connection between the gas channel 40 and the second space 20, and thus cutting off the connection between the airbag 2000 and the outside atmosphere. Then, as... Figure 53 As shown, the blocking diaphragm 3332 moves away from the protrusion, opening its own through hole, allowing compressed gas to flow from the first space 10 to the ventilation channel 3351, thereby inflating the airbag 2000.

[0186] Please refer to Figure 54 When the piezoelectric vibrator 4131 is de-energized, the gas in the first space 10 flows towards the outside atmosphere along the path indicated by the arrow, causing a decrease in the gas pressure within the first space 10. As the gas pressure in the first space 10 decreases, the blocking diaphragm 3332 first returns to its original position. Then, as the gas pressure in the first space 10 further decreases, the sealing diaphragm 3331 also returns to its original position, connecting the gas channel 40 with the second space 20. The compressed gas in the airbag 2000 flows along... Figure 55 The air is discharged into the outside atmosphere through the third vent 20b, as indicated by the middle arrow.

[0187] In the above embodiment, the valve is provided with at least two first vent ports for the airbag, and a first space 10 is also provided. The space wall of the first space 10 has at least one first air inlet for air intake and one first exhaust port for air exhaust, and a sealing structure located on the first side within the first space 10. The flow rate of the first air inlet is set to be greater than the flow rate of the first exhaust port. When air is introduced into the first space through the first air inlet at a certain flow rate, even if the first exhaust port is in the exhaust state, the pressure in the first space is in a rising or maintained state, that is, the first space can be continuously pressurized through the first air inlet; the sealing structure can control its own movement according to the change between the sum of the first restoring force and the force on the second side and the force on the first side, and close and open at least two of the first vent ports through its own movement; when the airbag needs to be inflated, the first space can be pressurized to control the sealing structure to close at least two of the first vent ports; when the pressurization and ventilation of the first space is stopped, the pressure in the first space can be safely and stably reduced through the first exhaust port, so that the sealing structure opens at least two of the first vent ports; the existence of the at least two first vent ports can effectively ensure that the airbag can safely expel gas when it does not need to be inflated.

[0188] The valve structure is simple, and a single sealing structure can simultaneously control the opening and closing of at least two of the first vent ports. Furthermore, the sealing structure is controlled by the pressure within the first space, which also has the first exhaust port. This ensures that the pressure in the first space can stably drop when there is no air intake, thus preventing the sealing structure from closing at least two of the first vent ports when the airbag does not need to be inflated. This satisfies both the safety requirements of dynamic blood pressure measurement and the requirement for a simple structure in dynamic blood pressure measurement devices.

[0189] This document describes various exemplary embodiments with reference to them. However, those skilled in the art will recognize that changes and modifications can be made to the exemplary embodiments without departing from the scope of this document. For example, various operational steps and components for performing operational steps can be implemented in different ways depending on the specific application or considering any number of cost functions associated with the operation of the system.

[0190] While the principles herein have been illustrated in various embodiments, numerous modifications to the structure, arrangement, proportions, elements, materials, and components, particularly suited to specific environmental and operational requirements, may be used without departing from the principles and scope of this disclosure. These modifications and other alterations or alterations will be included within the scope of this document.

[0191] The foregoing specific descriptions have been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and changes can be made without departing from the scope of this disclosure. Therefore, considerations for this disclosure are to be illustrative rather than restrictive, and all such modifications are to be included within its scope. Similarly, advantages, other advantages, and solutions to problems with respect to various embodiments have been described above. However, benefits, advantages, solutions to problems, and any elements that produce these, or make them more explicit, should not be construed as critical, essential, or necessary. The term “comprising” and any other variations thereof as used herein are non-exclusive inclusion, meaning that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed or not part of the process, method, system, article, or apparatus. Furthermore, the term “coupled” and any other variations thereof as used herein refer to physical connections, electrical connections, magnetic connections, optical connections, communication connections, functional connections, and / or any other connections.

[0192] Those skilled in the art will recognize that many changes can be made to the details of the above embodiments without departing from the basic principles of the invention. Therefore, the scope of the invention should be determined according to the following claims.

Claims

1. A valve for use in a dynamic blood pressure measurement device, characterized in that The application relates to a dynamic blood pressure measuring device, comprising: a first space, a space wall of the first space being provided with at least one first air inlet for air intake and a first air outlet for air exhaust; an air release structure, the air release structure being provided with at least two first air release openings for connecting the outside atmosphere with an air bag of the dynamic blood pressure measuring device; a sealing structure for cutting off and opening the connection between the outside atmosphere and the air bag, the sealing structure being provided with a first restoring force for returning to the original position after displacement, the sealing structure being provided with a first side and a second side opposite to the first side, the first side being located inside the first space, the second side being located outside the first space, the sealing structure controlling the movement of the sealing structure relative to the at least two first air release openings according to the difference between the first restoring force and the sum of the force borne by the second side and the force borne by the first side, so as to close and open the at least two first air release openings; wherein the air release structure further comprises a second space connected with the outside atmosphere, the second side of the sealing structure being located in the second space, the air release structure comprising at least two gas channels, the gas channels being provided with the first air release openings and second air release openings, the first air release openings being connected with the second space, and the second air release openings being used for connecting the air bag; the air release structure further comprising a third space for connecting the air bag, the second air release openings of at least one of the at least two gas channels being connected with the third space; the valve further comprising a lower pressing block, a one-way valve flap assembly, an upper pressing block and an inner pressing block; the lower pressing block, the one-way valve flap assembly, the upper pressing block and the air release valve flap assembly enclosing the first space, the one-way valve flap assembly comprising a first one-way valve flap and a third one-way valve flap; the air outlet of a second one-way valve flap corresponding first air outlet valve and a third one-way valve flap corresponding second air outlet valve being connected with the first space; the upper pressing block comprising two air outlet holes and a through hole; the upper surface of the upper pressing block further comprising a convex block; the air release valve flap assembly comprising a blocking diaphragm and a sealing diaphragm, the blocking diaphragm being provided with a through hole; the inner pressing block being located between the air release valve flap assembly and the air nozzle; the inner pressing block and the air release valve flap assembly enclosing two spaces, one of which is the second space, and the other of which is a gas chamber connected with the third space; the inner pressing block connecting the third space with the second space through two gas channels; the blocking diaphragm being located in the gas chamber and being adhered to the convex block under the action of a self-restoring force; the through hole of the blocking diaphragm being closed by the convex block; the blocking diaphragm being capable of opening the through hole through the difference between the gas pressures on two sides; the sealing diaphragm being located in the second space.

2. Valve for use in a dynamic blood pressure measuring device according to claim 1, characterized in that The first air outlet is at least two.

3. The valve for use in a dynamic blood pressure measuring device according to claim 1, wherein When the force borne by the first side is greater than the sum of the first restoring force of the sealing structure and the force borne by the second side, the sealing structure moves towards the at least two first air release openings to close the at least two first air release openings; when the force borne by the first side is less than the sum of the first restoring force of the sealing structure and the force borne by the second side, the sealing structure moves away from the at least two first air release openings to open the at least two first air release openings.

4. The valve for use in a dynamic blood pressure measuring device according to claim 1, wherein The second space is an open space without a space wall, or the space wall of the second space is provided with at least two third gas exhaust ports which are always open to the external atmosphere.

5. The valve for use in a dynamic blood pressure measuring device according to claim 1, wherein The deflation structure further comprises a third space for communicating with the air bag and a second space for communicating with the external atmosphere, the second side of the sealing structure is located in the third space, and the deflation structure comprises at least two gas channels, the gas channels have the first gas exhaust ports and second gas exhaust ports, the first gas exhaust ports communicate with the third space, and the second gas exhaust ports communicate with the second space.

6. Valve for use in a dynamic blood pressure measuring device according to claim 5, characterized in that The damping structure further comprises a fourth gas inlet and a fourth gas outlet, the damping structure is capable of conducting from the fourth gas inlet to the fourth gas outlet, the fourth gas inlet and the first gas inlet are communicated with the same pressurizing unit for providing compressed gas, and the fourth gas outlet is used for communicating with the air bag or the third space.

7. Valve for use in a dynamic blood pressure measuring device according to claim 6, characterized in that The minimum pressure value required for the damping structure to conduct is greater than the minimum pressure value required for the sealing structure to close the at least two first gas exhaust ports.

8. Valve for use in a dynamic blood pressure measuring device according to claim 7, characterized in that The damping structure is a one-way valve, and the damping structure is capable of conducting from the fourth gas inlet to the fourth gas outlet in one direction.

9. The valve for use in a dynamic blood pressure measuring device according to claim 5, wherein The third space comprises at least two third subspaces which are separated from each other, each of the third subspaces is used for communicating with the air bag, and each of the third subspaces communicates with one of the first gas exhaust ports.

10. Valve for use in a dynamic blood pressure measuring device according to any one of claims 1 to 9, characterized in that The first space comprises at least two first subspaces which are separated from each other, the space wall of each of the first subspaces is provided with at least one first gas inlet and at least one first gas outlet, the sealing structure comprises at least two sealing members, each of the sealing members corresponds to one of the first subspaces, each of the sealing members has a first side and a second side opposite to the first side, each of the sealing members has a second restoring force for returning to an original position after displacement, the first side is located inside the first subspace corresponding to the sealing member, the second side is located outside the first subspace corresponding to the sealing member, and the movement of each of the sealing members relative to one of the first gas exhaust ports is controlled according to the change of the difference between the sum of the second restoring force and the force borne by the second side and the force borne by the first side, so as to close and open the first gas exhaust port.

11. The valve for use in a dynamic blood pressure measuring device according to claim 1, characterized in that The sealing structure comprises an elastic wall, the elastic wall has a resilience for returning to an original shape after deformation, the elastic wall serves as the space wall of the first space, and the change of the difference between the sum of the resilience of the elastic wall and the force borne by the second side and the force borne by the first side of the elastic wall causes the elastic wall to seal and open the first gas exhaust port.

12. An integrated air pump, characterized by The application further comprises: a pressurizing unit; the valve for a dynamic blood pressure measuring device according to any one of claims 1 to 11, and the pressurizing unit is communicated with the valve to provide compressed gas for the valve.

13. The integrated gas pump of claim 12, wherein, Further comprising at least two first exhaust valves, each of said first exhaust valves communicating one of said first exhaust ports, said first exhaust valves communicating said first exhaust ports with the ambient atmosphere; the sum of the flow rates of gas flowing through said first exhaust ports to said first exhaust valves being less than the flow rate of gas into said at least one first intake port when gas is flowing into said at least one first intake port.

14. The integrated gas pump of claim 13, wherein, Further comprising a second exhaust valve, said at least two first exhaust ports each communicating with said second exhaust valve, said second exhaust valve communicating said first exhaust ports with the ambient atmosphere; the flow rate of gas flowing through said first exhaust ports to said second exhaust valve being less than the flow rate of gas into said at least one first intake port when gas is flowing into said at least one first intake port.

15. A device for ambulatory blood pressure measurement, characterized in that Comprising an air bladder and an air pressure sensor for detecting air pressure, and an integrated air pump as claimed in any one of claims 12 to 14, said integrated air pump communicating with said air bladder.

16. A device for ambulatory blood pressure measurement, characterized in that Comprising an air bladder, an air pump and an air pressure sensor for detecting air pressure, and a valve for use in a dynamic blood pressure measurement device as claimed in any one of claims 1 to 11, said air pump communicating with said air bladder via said valve.

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