CN211796411U - Blood pressure measuring module - Google Patents

Abstract

A blood pressure measurement module comprises a base, a valve sheet, a top cover, a micro pump, a driving circuit board and a pressure sensor. The valve sheet is arranged between the base and the top cover, the micro pump is located in the base, the pressure sensor is arranged in the driving circuit board, an air inlet channel of the top cover and the pressure sensor are connected to an air bag, the micro pump is actuated to inflate the air bag to press the user's skin, and the pressure sensor measures the pressure change in the air bag to detect the user's blood pressure.

Description

Blood pressure measurement module

【Technical field】

This case is about a blood pressure measurement module, especially an ultra-thin blood pressure measurement module used to combine with a wearable electronic device or a mobile device.

【Background technique】

In recent years, the awareness of personal health care has gradually risen, so it is hoped to be able to test one's own physical condition on a regular basis. However, most of the instruments for detecting physical conditions are fixed at present, and almost all of them have to go to a fixed medical service station or It is a hospital. Even if there are testing instruments for home use, the size is too large and it is not easy to carry. In the current society that emphasizes speed, it has been difficult to meet the needs of users.

Among them, blood pressure can best reflect the physical condition. The blood vessels in each person's body are like roads all over the body. Blood pressure is like road conditions. clear.

In view of this, how to provide a device that can measure blood pressure at any time and accurately, and which can be combined with a wearable device or a portable electronic device, so that users can quickly confirm the blood pressure status anytime, anywhere, needs to be solved at present. The problem.

【Content of utility model】

The main purpose of this case is to provide a blood pressure measurement module, which can be combined with a portable electronic device or a wearable electronic device, is convenient for users to carry, and can complete blood pressure measurement regardless of time, location, etc.

A broad implementation aspect of the present case is a blood pressure measurement module, comprising: a base having a valve bearing area, an accommodating groove area, an air intake hole and a through hole, wherein the valve bearing area and the The accommodating groove areas are respectively arranged on different surfaces, and the air inlet hole and the through hole communicate with the accommodating groove area, and the valve bearing area is provided with a first concave cavity, and the first concave cavity penetrates through A plurality of first through holes are provided and a first protruding structure is protruded, and a gas collecting chamber is recessed in the accommodating groove area, which is connected with the plurality of first through holes; a valve piece is arranged and carried on the On the valve bearing area, there is a valve hole corresponding to the position of the first protruding structure; a top cover is provided with an air intake channel and an exhaust hole, which are separated from each other, and the top cover has a set of The matching surface covers the valve sheet, and an intake chamber is recessed on the matching surface corresponding to the intake passage, communicated with the intake passage, and recessed at the matching surface corresponding to the exhaust hole an exhaust chamber communicated with the exhaust hole, a communication channel is provided between the intake chamber and the exhaust chamber, and a second protruding structure is protruded in the exhaust chamber, and The vent hole is located at the center of the second protruding structure, which makes the valve plate and the second protruding structure normally abut to form a pre-force, and closes the vent hole, and the intake channel is connected to the blood pressure measurement an airbag connection; a micro pump, arranged in the accommodating tank area, and cover the gas collection chamber; a driving circuit board, cover the accommodating tank area, provide the driving signal of the micro pump to control The driving operation of the micro-pump; and a pressure sensor, which is provided on the driving circuit board and electrically connected to the through hole corresponding to the base, and is connected to the gas port through an external channel for gas pressure detection ; Wherein, the micro pump is controlled and driven by the driving circuit board to form a gas transmission, so that the gas outside the base is introduced into the accommodating tank area through the air inlet, and the gas collection is continuously introduced through the micro pump The chamber is concentrated, and the gas can push the valve hole of the valve sheet to disengage from the first protruding structure. At this time, the gas can pass through the valve hole and continue to be introduced into the air inlet channel of the top cover, and accumulate to the In the air bag, the air bag is inflated and pressed against the skin of the user, and the blood pressure of the user is detected by the pressure sensor.

【Description of drawings】

FIG. 1 is a three-dimensional schematic diagram of the blood pressure measurement module of the present case.

FIG. 2A is an exploded schematic diagram of the blood pressure measurement module of the present application.

FIG. 2B is an exploded schematic diagram of another angle of the blood pressure measurement module of the present invention.

FIG. 3 is a schematic diagram showing that the pressure sensor of the blood pressure measurement module of the present invention is arranged on the driving circuit board.

FIG. 4 is a schematic diagram of the blood pressure measurement module valve piece being arranged on the base in this case.

FIG. 5 is a schematic diagram of the blood pressure measurement module connected to the air bag of the present invention.

FIG. 6A is an exploded schematic diagram of the micropump of the gas detection module of the present invention.

FIG. 6B is an exploded schematic view of another angle of the micropump of the gas detection module of the present invention.

7A is a schematic cross-sectional view of a micropump of the gas detection module of the present invention.

7B is a schematic cross-sectional view of another embodiment of the gas detection module of the present invention.

7C to 7E are schematic diagrams of the operation of the micro-pump.

FIG. 8A is a schematic cross-sectional view of the MEMS pump.

FIG. 8B is an exploded schematic view of the MEMS pump.

9A to 9C are schematic diagrams of the operation of the MEMS pump.

FIG. 10 is a schematic top view of the blood pressure measurement module of the present application.

FIG. 11 is a schematic cross-sectional view of the AA section line in FIG. 10 .

FIG. 12 is a schematic cross-sectional view of the BB section line in FIG. 10 .

FIG. 13 is a schematic cross-sectional view of the CC section line of FIG. 10 .

14A and 14B are schematic diagrams of air intake of the blood pressure measurement module of the present invention.

FIG. 15 is a schematic diagram of deflation of the blood pressure measurement module.

FIG. 16 is a schematic diagram of another embodiment of the blood pressure measurement module.

FIG. 17A is a schematic diagram of a top cover of another embodiment of the blood pressure measurement module.

FIG. 17B is a schematic diagram of another angle of the top cover of another embodiment of the blood pressure measurement module.

FIG. 18 is a schematic cross-sectional view of another embodiment of a blood pressure measurement module.

FIG. 19 is a schematic diagram of air intake of another embodiment of the blood pressure measurement module.

FIG. 20 is a schematic diagram of deflation of another embodiment of the blood pressure measurement module.

FIG. 21 is a schematic diagram of connecting the blood pressure measurement module to an external device.

【Detailed ways】

Some typical embodiments embodying the features and advantages of the present case will be described in detail in the description of the following paragraphs. It should be understood that this case can have various changes in different aspects, all of which do not depart from the scope of this case, and the descriptions and diagrams therein are essentially used for illustration rather than limiting this case.

Please refer to FIG. 1 to FIG. 2B , the present application provides a blood pressure measurement module, including a base 1 , a valve plate 2 , a top cover 3 , a micro pump 4 , a driving circuit board 5 and a pressure sensor 6 . The base 1, the valve plate 2, the top cover 3, the micro pump 4, the driving circuit board 5 and the pressure sensor 6 have a modular structure made of tiny materials, and the modular structure has a length, a width and a height, wherein the module The length, width and height of the structures are between 1 centimeter (mm) and 999 centimeters (mm), or between 1 micrometer (μm) and 999 micrometers (μm), or between 1 nanometer (nm) and 999 between nanometers (nm), but not limited thereto. In this embodiment, the length of the module structure is between 1 μm and 999 μm, the width is between 1 μm and 999 μm and the height is between 1 μm and 999 μm. A volume formed by 999 nanometers, a width of 1 nanometer to 999 nanometers, and a height of 1 nanometer to 999 nanometers, but not limited thereto.

The above-mentioned base 1 includes a valve bearing area 11 , an accommodating groove area 12 , an air inlet hole 13 , a through hole 14 , a first surface 15 and a second surface 16 , the first surface 15 and the second surface 16 . The surfaces 16 are two opposite surfaces, the valve bearing area 11 is located on the first surface 15 , the accommodating groove area 12 is located on the second surface 16 , the air intake holes 13 and the through holes 14 respectively penetrate from the first surface 15 to the second surface 16 and communicate with the accommodating groove area 12, wherein, the first valve bearing area 11 has a first recessed cavity 11a, a plurality of first through holes 11b, a first protruding structure 11c and a plurality of convex pillars 11d. A recessed cavity 11a is recessed from the valve bearing area 11. A first protruding structure 11c is protruded from the center of the first recessed cavity 11a. The plurality of first through holes 11b surround the first protruding structure 11c and penetrate to the cavity. In the accommodating groove area 12, the protruding posts 11d are respectively disposed adjacent to the corners of the valve bearing area 11. In addition, the accommodating groove area 12 is recessed with a gas collecting chamber 12a, the gas collecting chamber 12a and the plurality of first through holes 11b is connected.

In addition, the valve bearing area 11 further includes a second concave cavity 11e, the second concave cavity 11e is spaced apart from the first concave cavity 11a, and the second concave cavity 11e penetrates through at least one second through hole 11f, so that the The two recessed cavities 11e are communicated with the gas collection chamber 12a through the second through hole 11f, and the passage between the gas collection chamber 12a and the valve bearing area 11 is increased to accelerate the gas in the gas collection chamber 12a to the valve bearing area 11. speed.

Please refer to FIG. 2A and FIG. 4 , the valve plate 2 is disposed in the valve bearing area 11 , the valve plate 2 has a valve hole 21 and a plurality of positioning holes 22 , and the valve hole 21 is vertically corresponding to the first protruding structure 11 c of the valve bearing area 11 . , the plurality of positioning holes 22 are respectively corresponding to the plurality of protruding posts 11d and are sleeved on the plurality of protruding posts 11d.

As shown in FIGS. 17A and 17B , the top cover 3 has an intake passage 31 , an exhaust hole 32 , a set of matching surfaces 33 , a communication passage 34 and a plurality of positioning holes 35 , the intake passage 31 and the exhaust hole 32 are arranged at intervals, the assembly surface 33 covers the valve plate 2, and the assembly surface 33 is recessed on the periphery of the intake passage 31 and an intake chamber 31a communicated with the intake passage 31, and is concave in the periphery of the exhaust hole 32. The exhaust chamber 32a communicated with the exhaust hole 32, and the communication channel 34 is recessed between the intake chamber 31a and the exhaust chamber 32a, so that the intake chamber 31a communicates with the exhaust chamber 32a. In addition, a second protruding structure 32b is protruded from the edge of the exhaust chamber 32a and the exhaust hole 32; please refer to FIG. 12, the valve plate 2 is carried on the valve bearing area 11, and is sandwiched between the base 1 and the top The positioning between the covers 3 is not offset. At this time, the exhaust hole 32 is located at the center of the second protruding structure 32b. The second protruding structure 32b will press against the valve plate 2 and close the exhaust hole 32, which is formed under normal conditions. A pre-force.

Referring to FIGS. 2A , 2B and 11 , the plurality of positioning holes 35 are respectively located at four corners of the assembly surface 33 and correspond to the plurality of protruding posts 11d of the valve bearing area 11 respectively, and provide the plurality of The protruding post 11d is sleeved therein.

Please refer to FIG. 2B and FIG. 5 , the top cover 3 also includes a common channel 36 . The common channel 36 communicates with the intake channel 31 and forms an integral body. One end of the common channel 36 extends to the pressure sensor 6 and covers the pressure sensor 6 (as shown in FIG. 13), and the other end is the connecting end 36a (as shown in FIG. 10), which is used to connect the airbag 10, so that the pressure sensor 6 is connected to the airbag 10 through the common channel 36 for gas pressure detection, so as to further measure the blood pressure.

Please refer to FIG. 6A and FIG. 6B , the micro pump 4 includes an air intake plate 41 , a resonance plate 42 , a piezoelectric actuator 43 , a first insulating sheet 44 , a conductive sheet 45 and a second insulating sheet 46 and other structures, wherein the piezoelectric actuator 43 is arranged corresponding to the resonant sheet 42, and the air intake plate 41, the resonance sheet 42, the piezoelectric actuator 43, the first insulating sheet 44, the conductive sheet 45 and the second insulating sheet are arranged 46 and so on are stacked in order.

The air intake plate 41 has at least one air intake hole 411 , at least one confluence row groove 412 and a confluence chamber 413 . In this embodiment, the number of air intake holes 411 is preferably four, but not limited to this. . The air inlet 411 penetrates through the air inlet plate 41 for allowing gas to flow into the micro pump 4 from the air inlet 411 in accordance with the action of atmospheric pressure. The intake plate 41 is provided with at least one busbar groove 412, the number and position of which correspond to the intake holes 411 on the other surface of the intake plate 41. The number of the intake holes 411 in this embodiment is four, and the corresponding number of the intake holes 411 is 4. The number of the busbar grooves 412 is also four; the busbar chamber 413 is located at the center of the air inlet plate 41 , one end of the aforementioned four busbar grooves 412 is connected to the corresponding air inlet hole 411 , and the other end is connected to the intake port 411 . The confluence chamber 413 at the center of the gas plate 41 , whereby the gas entering the confluence groove 412 from the air inlet 411 can be guided and concentrated to the confluence chamber 413 . In the present embodiment, the air intake plate 41 has an air intake hole 411 , a bus groove 412 and a bus chamber 413 which are integrally formed.

In some embodiments, the material of the air inlet plate 41 can be made of stainless steel, but not limited thereto. In other embodiments, the depth of the bus chamber 413 is the same as the depth of the bus groove 412 , but not limited thereto.

The resonance plate 42 is made of a flexible material, but not limited thereto, and a hollow hole 421 is formed on the resonance plate 42 , which is arranged corresponding to the confluence chamber 413 of the air inlet plate 41 for the gas to pass through. . In other embodiments, the resonance plate 42 can be made of a copper material, but not limited thereto.

The piezoelectric actuator 43 is assembled by a suspension plate 431, an outer frame 432, at least one bracket 433 and a piezoelectric element 434; the suspension plate 431 is a square shape, and can bend and vibrate. 432 is arranged around the suspension board 431. At least one bracket 433 is connected between the suspension board 431 and the outer frame 432 to provide the effect of elastic support. The piezoelectric element 434 is also a square shape and is attached to a surface of the suspension board 431. Deformation is generated by applying a voltage to drive the suspension board 431 to bend and vibrate, and the side length of the piezoelectric element 434 is less than or equal to the side length of the suspension board 431; wherein, there are a plurality of gaps 435 between the suspension board 431, the outer frame 432 and the bracket 433 , the gap 435 is for gas to pass through; in addition, the piezoelectric actuator 43 further includes a convex part 436, the convex part 436 is arranged on the other surface of the suspension board 431, and is opposite to the piezoelectric element 434 and is arranged on both surfaces of the suspension board 431 .

As shown in FIG. 7A , the air intake plate 41 , the resonance plate 42 , the piezoelectric actuator 43 , the first insulating sheet 44 , the conductive sheet 45 , and the second insulating sheet 46 are stacked in sequence. The thickness of the suspension plate 431 is smaller than the thickness of the outer frame 432 . When the resonance plate 42 is stacked on the piezoelectric actuator 43 , a cavity can be formed between the suspension plate 431 of the piezoelectric actuator 43 , the outer frame 432 and the resonance plate 42 . Room space 47.

Please refer to FIG. 7B again. FIG. 7B is another embodiment of the micro-pump 4 . The suspension plate 431 of the actuator 43 extends in a direction away from the resonance plate 42 by punching, and is not at the same level as the outer frame 432. The extension distance can be adjusted by the bracket 433, and the bracket 433 and the suspension plate 431 are not parallel , so that the piezoelectric actuator 43 has a protruding shape.

In order to understand the output operation mode of the gas transmission provided by the micro pump 4, please continue to refer to FIG. 7C to FIG. 7E, please refer to FIG. 7C first, the piezoelectric element 434 of the piezoelectric actuator 43 is deformed after being applied with a driving voltage The suspension board 431 is driven to move upward, and the volume of the chamber space 47 is increased at this time, and a negative pressure is formed in the chamber space 47, so that the gas in the confluence chamber 413 is drawn into the chamber space 47, and the resonance plate 42 is resonated at the same time. The influence of the principle is simultaneously driven upward, which increases the volume of the confluence chamber 413, and because the gas in the confluence chamber 413 enters the chamber space 47, the interior of the confluence chamber 413 is also in a negative pressure state. The air holes 411 and the bus bar grooves 412 are used to draw gas into the bus chamber 413 . Referring to FIG. 7D again, the piezoelectric element 434 drives the suspension plate 431 to displace downward, compressing the chamber space 47 . Similarly, the resonant plate 42 is displaced downward by the suspension plate 431 due to resonance, and synchronously pushes the cavities in the chamber space 47 . The gas is transported upward through the gap 435, and the gas is discharged from the micro-pump 4. Finally, referring to FIG. 7E , when the suspension plate 431 returns to its original position, the resonance sheet 42 is still displaced downward due to inertia. At this time, the resonance sheet 42 will move the gas in the compression chamber space 47 to the gap 435 and lift the confluence. The volume in the chamber 413 allows the gas to continuously pass through the air inlet holes 411 and the bus bar grooves 412 to be collected in the confluence chamber 413, and the gas transmission operation is provided by continuously repeating the micro-pump shown in FIG. 7C to FIG. 7E . In the moving step, the micro pump can make the gas continuously enter the air inlet plate 41 and the flow channel formed by the resonance plate 42 from the air inlet hole 411 to generate a pressure gradient, and then transport it upward through the gap 435, so that the gas flows at a high speed, and the micro pump 4 transmits the gas. Effect.

Another embodiment of the micropump 4 in this case can be a microelectromechanical pump 4a. Please refer to FIGS. 8A and 8B. The microelectromechanical pump 4a includes a first substrate 41a, a first oxide layer 42a, a second substrate 43a and A piezoelectric element 44a. The MEMS pump 4a of the present embodiment is integrally formed through the processes of epitaxy, deposition, lithography, and etching in the semiconductor manufacturing process, and should not be disassembled. In order to describe its internal structure in detail, the disassembly shown in FIG. 8B is used Figure details.

The first substrate 41a is a silicon chip (Si wafer) with a thickness between 150 and 400 micrometers (μm). The first substrate 41a has a plurality of inflow holes 411a, a first surface 412a and finally a second surface 413a In this embodiment, the number of the plurality of inflow holes 411a is 4, but not limited to this, and each inflow hole 411a penetrates from the second surface 413a to the first surface 412a, and the inflow holes 411a are for the purpose of To enhance the inflow effect, the inflow hole 411a is tapered from the second surface 413a to the first surface 412a.

The first oxide layer 42a is a silicon dioxide (SiO2) film with a thickness between 10 and 20 micrometers (μm). The first oxide layer 42a is stacked on the first surface 412a of the first substrate 41a. An oxide layer 42a has a plurality of confluence channels 421a and a confluence chamber 422a. The numbers and positions of the confluence channels 421a and the inflow holes 411a of the first substrate 41a correspond to each other. In this embodiment, the number of the confluence channels 421a is also four, one end of the four confluence channels 421a is respectively connected to the four inflow holes 411a of the first substrate 41a, and the other ends of the four confluence channels 421a are connected to the confluence flow. In the chamber 422a, after the gas enters through the inflow holes 411a respectively, it passes through the correspondingly connected confluence channel 421a and then converges into the confluence chamber 422a.

The second oxide layer 432a is a silicon oxide layer with a thickness of 0.5 to 2 micrometers (μm), formed on the silicon chip layer 431a in a hollow ring shape, and defines a vibration chamber 4321a with the silicon chip layer 431a. The silicon material layer 433a is circular, located on the second oxide layer 432a and bonded to the first oxide layer 42a. The silicon material layer 433a is a silicon dioxide (SiO2) film with a thickness between 2 and 5 micrometers (μm), and has A through hole 4331a, a vibrating portion 4332a, a fixing portion 4333a, a third surface 4334a and a fourth surface 4335a. The through hole 4331a is formed in the center of the silicon material layer 433a, the vibrating part 4332a is located in the peripheral area of the through hole 4331a, and vertically corresponds to the vibration chamber 4321a, and the fixed part 4333a is the peripheral area of the silicon material layer 433a, and is fixed to the first part by the fixed part 4333a. The dioxide layer 432a, the third surface 4334a is bonded to the second oxide layer 432a, and the fourth surface 4335a is bonded to the first oxide layer 42a; the piezoelectric element 44a is stacked on the actuating portion 4311a of the silicon chip layer 431a.

The piezoelectric element 44a includes a lower electrode layer 441a, a piezoelectric layer 442a, an insulating layer 443a, and an upper electrode layer 444a. The lower electrode layer 441a is stacked on the actuating portion 4311a of the silicon chip layer 431a, and the piezoelectric layer 442a is stacked on the actuator portion 4311a of the silicon chip layer 431a. The lower electrode layer 441a is electrically connected through its contact area. In addition, the width of the piezoelectric layer 442a is smaller than that of the lower electrode layer 441a, so that the piezoelectric layer 442a cannot completely cover the lower electrode layer 441a. The insulating layer 443a is stacked on the partial region of the layer 442a and the region of the lower electrode layer 441a not shielded by the piezoelectric layer 442a, and finally stacked on the insulating layer 443a and the region of the piezoelectric layer 442a not shielded by the insulating layer 443a. The electrode layer 444a allows the upper electrode layer 444a to be in contact with the piezoelectric layer 442a for electrical connection, and the insulating layer 443a is used to isolate the upper electrode layer 444a and the lower electrode layer 441a to avoid short circuit caused by direct contact between the two.

Please refer to FIGS. 9A to 9C . FIGS. 9A to 9C are schematic diagrams of the operation of the microelectromechanical pump 4a. Referring to FIG. 9A first, when the lower electrode layer 441a and the upper electrode layer 444a of the piezoelectric element 44a receive the driving voltage and the driving signal (not shown) transmitted by the driving circuit board 5, they are conducted to the piezoelectric layer 442a, After the piezoelectric layer 442a receives the driving voltage and the driving signal, it begins to deform due to the influence of the inverse piezoelectric effect, which will drive the actuating portion 4311a of the silicon chip layer 431a to begin to displace. Open the distance between the second oxide layer 432a and the second oxide layer 432a. At this time, the volume of the vibration chamber 4321a of the second oxide layer 432a will increase, so that a negative pressure will be formed in the vibration chamber 4321a, which is used to confluence the first oxide layer 42a. The gas in the chamber 422a is drawn into it through the perforation 4331a. Please continue to refer to FIG. 9B , when the actuating portion 4311a is displaced upward by the traction of the piezoelectric element 44a, the vibration portion 4332a of the silicon material layer 433a will be displaced upward due to the influence of the resonance principle. When the vibration portion 4332a is displaced upward, it will compress and vibrate. The space of the chamber 4321a and push the gas in the vibration chamber 4321a to move to the fluid channel 4314a of the silicon chip layer 431a, so that the gas can be discharged upward through the fluid channel 4314a, while the vibration part 4332a is displaced upward to compress the vibration chamber 4321a, The volume of the confluence chamber 422a is increased due to the displacement of the vibrating part 4332a, and a negative pressure is formed inside the confluence chamber 422a, and the gas outside the MEMS pump 4a is drawn into it through the inflow hole 411a. Finally, as shown in FIG. 9C , when the piezoelectric element 44a drives the actuating portion 4311a of the silicon chip layer 431a to displace downward, the gas in the vibration chamber 4321a is pushed toward the fluid channel 4314a, and the gas is discharged, while the The vibrating portion 4332a is also moved downward by the actuating portion 4311a, and the gas in the synchronously compressed confluence chamber 422a moves toward the vibrating chamber 4321a through the perforation 4331a, and when the piezoelectric element 44a drives the actuating portion 4311a to move upward, the The volume of the vibration chamber 4321a will be greatly increased, and then a higher suction force will draw the gas into the vibration chamber 4321a, and the above actions are repeated, so that the piezoelectric element 44a continues to drive the actuating portion 4311a to move up and down and move in linkage The vibration part 4332a is displaced up and down, and by changing the internal pressure of the micro-electro-mechanical pump 4a, it continuously absorbs and discharges gas, thereby completing the action of the micro-electro-mechanical pump 4a.

Please refer to FIG. 14A , the micro-pump 4 starts to act, and the gas starts to enter through the air inlet 411 of the micro-pump 4 , and the gas is continuously guided to the gas collecting chamber 12 a , please refer to FIG. 14B , the gas is continuously delivered to the collecting chamber 12 a . After the gas chamber 12a, the gas enters the first concave cavity 11a through the first through hole 11b, then enters the second concave cavity 11e through the second through hole 11f, and then enters the first concave cavity 11a and the second concave cavity 11e. The gas in the cavity 11e will push the valve piece 2 upward and make it close to the top cover 3. At this time, the valve piece 2 will press against the second protruding structure 32b of the exhaust chamber 32a, and at the same time close the exhaust hole 32. At the same time, the valve plate 2 is separated from the first protruding structure 11c of the first concave cavity 11a, so that the gas in the second concave cavity 11e and the first concave cavity 11a can enter the intake chamber 31a through the valve hole 21, and After the gas enters the intake chamber 31a, it is introduced into the intake passage 31, and finally converges into the airbag 10 (as shown in FIG. 5). In the present embodiment, after the gas enters the air inlet passage 31, it first passes through the common passage 36, and then enters the air bag 10 at the connecting end 36a, and starts to inflate the air bag 10 to inflate, so that the air bag 10 can be close to the measuring person, and then the air bag 10 is inflated. The pressure sensor 6 detects changes in the pressure of the airbag 10 to measure the blood pressure.

As shown in FIG. 15 , after the blood pressure measurement is completed, the micro pump 4 stops working, so the air pressure in the air bag 10 is higher than the air pressure in the air intake chamber 31a, and the air starts to be guided from the air bag 10 to the air intake chamber through the air intake passage 31 31a, when the gas is delivered to the intake chamber 31a, it pushes the valve plate 2 to move downward, and the valve hole 21 is closed by the first protruding structure 11c, and the gas will pass through the communication channel 34 and be discharged from the intake chamber 31a. The air chamber 32a flows. In addition, when the gas pushes the valve plate 2 downward, the valve plate 2 is separated from the second protruding structure 32b, and is pushed close to the second concave cavity 11e. The exhaust hole 32 is connected, and after the gas enters the exhaust chamber 32a, the gas can be discharged from the exhaust hole 32 to release the gas in the airbag 10, so as to complete the rapid decompression operation of the airbag 10.

Please refer to FIG. 16. FIG. 16 is another embodiment of the blood pressure measurement module of this embodiment. Most of the components of this embodiment are the same as those of the previous embodiment, so they will not be repeated here. The difference lies in the top cover 3. The top cover of this embodiment 3. No common channel 36 is provided; please refer to FIG. 18 next, in the case where the common channel 36 is not provided, the balloon 10 of this embodiment has a balloon catheter 10a, the balloon catheter 10a is communicated with the balloon 10, and is connected to the top The air intake channel 31 of the cover 3 and the cover cover the pressure sensor 6, the micro pump 4 starts to operate, and the gas starts to enter the air intake channel 31 (as shown in FIG. 19 ). After the gas passes through the air intake channel 31, it enters through the balloon catheter 10a The airbag 10 starts to inflate and inflate the airbag 10, compresses the skin of the user, and checks the air pressure change in the airbag 10 through the airbag catheter 10a through the pressure sensor 6 to detect the blood pressure of the user. After the detection, the micropump 4 stops operating. , the gas will be led back to the air intake passage 31 by the airbag catheter 10a, and finally discharged through the exhaust hole 32 (as shown in FIG. 20 ), so as to achieve the effect of rapid degassing and decompression.

Finally, please refer to Figure 1 again. The preferred length of the blood pressure measurement module in this case is between 4mm and 27mm, the preferred width is between 2mm and 16mm, and the preferred height is between 1mm and 8mm, so that The blood pressure measurement module can be combined with the portable electronic device. In addition, in order to combine with the smart watch, the blood pressure measurement module preferably has a length between 24mm and 27mm, a preferred width between 14mm and 16mm, and a preferred thickness between 6mm and 8mm. between.

As shown in FIG. 21 , the blood pressure measurement module may further include a microprocessor 7 and a communicator 8 disposed on the driving circuit board 5 , and the microprocessor 7 is used for receiving the measurement signal of the pressure sensor 6 for The operation is converted into information data, and the information data is communicated and transmitted to an external device 9 through the communicator for storage and processing applications, wherein the communication transmission is at least one of a wired transmission and a wireless transmission, and the external device is a cloud. at least one of a system, a portable device, a computer system, and the like.

To sum up, the blood pressure measurement module seat provided in this case can achieve the effect of rapid exhaust and rapid air intake of the airbag through the setting of the base, the valve plate and the top cover, and the volume of the pump can be greatly reduced by the micro pump. The blood pressure measurement module can be installed on wearable devices such as smart watches, which is highly industrially applicable and progressive.

【Symbol Description】

1: Base

11: Valve bearing area

11a: The first recessed cavity

11b: first through hole

11c: The first protruding structure

11d: convex column

11e: Second recessed cavity

11f: second through hole

12: accommodating tank area

12a: plenum chamber

13: Air intake holes

14: Through hole

15: First surface

16: Second Surface

2: valve piece

21: Valve hole

22: Positioning hole

3: Top cover

31: Intake channel

31a: Intake chamber

32: Air vents

32a: Exhaust Chamber

32b: Second protruding structure

33: Assembly surface

34: Connecting channel

35: Positioning hole

36: Shared channel

36a: Connection end

4: Micro pump

41: Air intake plate

411: Air intake

412: Bus bar slot

413: Convergence Chamber

42: Resonance sheet

421: Hollow hole

422: Movable part

423: Fixed part

43: Piezoelectric Actuators

431: Hoverboard

432: Outer frame

433: Bracket

434: Piezoelectric element

435: void

436: Convex

44: The first insulating sheet

45: Conductive sheet

46: Second insulating sheet

47: Chamber Space

4a: MEMS pump

41a: first substrate

411a: Inflow hole

412a: First surface

413a: Second surface

42a: first oxide layer

421a: Busway

422a: Convergence Chamber

43a: Second substrate

431a: Silicon chip layer

4311a: Actuator

4312a: Peripheral

4313a: Connector

4314a: Fluid Channels

432a: Second oxide layer

4321a: Vibration Chamber

433a: Silicon layer

4331a: Perforation

4332a: Vibration Department

4333a: Fixed part

4334a: Third Surface

4335a: Fourth Surface

44a: Piezoelectric components

441a: lower electrode layer

442a: Piezoelectric layer

443a: Insulation layer

444a: upper electrode layer

5: Drive circuit board

6: Pressure sensor

7: Microprocessor

8: Communicator

9: External device

10: Airbag

10a: Balloon catheter

Claims (20)

1. a blood pressure measurement module, is characterized in that, comprises: a base having a valve bearing area, an accommodating groove area, an air inlet and a through hole, wherein the valve bearing area and the accommodating groove area are respectively set on different surfaces, and the air inlet and the The penetrating hole communicates with the accommodating groove area, and the valve bearing area is provided with a first concave cavity, and a plurality of first through holes and a first protruding structure are arranged through the first concave cavity and protrude. , and a gas-collecting chamber is recessed in the accommodating groove area, which communicates with the plurality of first through holes; a valve sheet, which is arranged and carried on the valve bearing area, and is provided with a valve hole corresponding to the position of the first protruding structure; A top cover is provided with an intake passage and an exhaust hole, which are spaced apart from each other, and the top cover has a set of matching surfaces, which cover the valve sheet, and a recess corresponding to the intake passage on the matching surface. an intake chamber, communicated with the intake passage, and an exhaust chamber is recessed on the assembly surface corresponding to the exhaust hole, communicated with the exhaust hole, and the intake chamber is connected to the exhaust chamber A communication channel is arranged between the chambers, and a second protruding structure is protruded in the exhaust chamber, and the exhaust hole is located at the center of the second protruding structure, so as to promote the valve plate and the second protruding structure. The outlet structure is normally pushed against the top to form a pre-force, and the exhaust hole is closed, and the air inlet channel is connected with an air bag for blood pressure measurement; A micro pump is arranged in the accommodating tank area and covers the gas collecting chamber; a driving circuit board, covering the accommodating groove area, and providing the driving signal of the micro-pump to control the driving operation of the micro-pump; and a pressure sensor, disposed on the driving circuit board and electrically connected, and corresponding to the through hole of the base, and connected to the airbag through an external channel; Wherein, a modular structure is made by the base, the valve sheet, the top cover, the micro pump, the driving circuit board and the pressure sensor, and the modular structure has a length, a width and a height, wherein The micro pump is controlled and driven by the driving circuit board to form a gas transmission, so that the gas from the outside of the base is introduced into the accommodating groove area through the air inlet, and is continuously introduced into the gas collection chamber through the micro pump to concentrate , and the gas can push the valve hole of the valve sheet and the first protruding structure out of conflict. At this time, the gas can continue to be introduced into the air inlet channel of the top cover through the valve hole, and accumulate in the air bag, The balloon is inflated and pressed against the user's skin, and the user's blood pressure is detected by the pressure sensor. 2 . The blood pressure measuring module of claim 1 , wherein the length of the module structure is between 1 μm and 999 μm, the width is between 1 μm and 999 μm, and the height is between 1 μm and 999 μm. 3 . volume made up of micrometers. 3 . The blood pressure measurement module of claim 1 , wherein the length of the module structure is between 1 nanometer and 999 nanometers, the width is between 1 nanometer and 999 nanometers, and the height is between 1 nanometer and 999 nanometers. 4 . The volume made up of nanometers. 4 . The blood pressure measurement module of claim 1 , wherein the valve bearing area of the base further comprises a plurality of protruding posts, and the valve sheet is provided with a positioning position corresponding to the positions of the protruding posts. 5 . A hole for correspondingly sleeved on the protruding post of the valve bearing area, so that the valve plate is supported on the valve bearing area and the positioning is not offset, ensuring that the valve hole corresponds to the position of the first protruding structure. 5 . The blood pressure measuring module of claim 4 , wherein the assembly surface of the top cover is further provided with a positioning hole corresponding to the positions of the plurality of protruding posts for correspondingly sleeved on the valve bearing. 6 . On the protruding post in the area, the valve sheet is carried on the valve carrying area, and is sandwiched between the base and the top cover to be positioned without deviation. 6 . The blood pressure measurement module of claim 1 , wherein the valve bearing area of the base further comprises a second recessed cavity, and at least one second recessed cavity penetrates through the second recessed cavity. 7 . A through hole is provided for communicating with the gas collecting chamber, so as to accelerate the introduction of the gas collected in the gas collecting chamber through the valve hole, and then continue to be introduced into the air inlet channel of the top cover to collect into the air bag. 7 . The blood pressure measurement module of claim 6 , when the micro pump stops driving, the gas pressure of the gas collected in the air bag is greater than the gas pressure of the gas collection chamber, and the gas collected in the air bag can be collected by the air bag. 8 . The intake passage leads out and pushes the valve hole of the valve sheet to keep in conflict with the first protruding structure, closing the valve hole, and the gas is introduced into the exhaust chamber through the communication channel, and the introduced gas pushes the valve at the same time The sheet disengages from the second protruding structure, opens the vent hole, urges the gas accumulated in the airbag to be discharged from the top cover through the vent hole, and completes the rapid pressure relief operation of the airbag. 8 . The blood pressure measurement module of claim 7 , wherein when the rapid pressure relief operation of the airbag is performed, the valve sheet can be pushed and dropped into the second recessed cavity, so that the valve sheet and the After the second protruding structure is separated, the distance increases, and the exhaust hole is opened. 9 . The blood pressure measurement module of claim 1 , wherein the top cover is provided with a common channel for communicating with the intake channel to form an integral body, and the common channel extends and covers the pressure sensor, and the The common channel has a connecting end for connecting with the airbag, so that the pressure sensor is connected to the airbag through the common channel for gas pressure detection. 10 . The blood pressure measurement module of claim 1 , further comprising a microprocessor and a communicator, disposed on the driving circuit board, and the microprocessor is used for receiving the signal measured by the pressure sensor 10 . The operation is converted into information data, and the information data is communicated and transmitted to an external device through the communicator for storage, processing and application. 11. The blood pressure measurement module of claim 10, wherein the communication transmission is at least one of a wired transmission and a wireless transmission. 12 . The blood pressure measurement module of claim 10 , wherein the external device is at least one of a cloud system, a portable device and a computer system. 13 . 13. The blood pressure measurement module of claim 1, wherein the micropump comprises: an air intake plate with at least one air intake hole, at least one bus bar slot corresponding to the position of the intake hole, and a confluence chamber, the intake hole is used for introducing gas, and the bus bar groove is used for guiding from the intake air the gas introduced by the hole to the manifold; a resonator plate with a hollow hole corresponding to the position of the confluence chamber and surrounded by a movable part; and a piezoelectric actuator, which is arranged correspondingly to the resonance plate in position; Wherein, the air intake plate, the resonance plate and the piezoelectric actuator are stacked in sequence, and a cavity space is formed between the resonance plate and the piezoelectric actuator for the piezoelectric actuator When driven, the gas is introduced from the air inlet hole of the air inlet plate, collected into the confluence chamber through the bus bar slot, and then passes through the hollow hole of the resonant plate, so that the piezoelectric actuator and the resonance plate are resonated. The movable part of the sheet resonates to transport the gas. 14. The blood pressure measurement module of claim 13, wherein the piezoelectric actuator comprises: a hoverboard, having a square shape and capable of bending and vibrating; an outer frame, arranged around the outer side of the suspension board; at least one bracket connected between the suspension board and the outer frame to provide elastic support; and A piezoelectric element has one side length, and the side length is less than or equal to the side length of the suspension board, and the piezoelectric element is attached to a surface of the suspension board for receiving voltage to drive the suspension board to bend and vibrate. 15. The blood pressure measurement module of claim 13, wherein the micropump comprises: a suspension board, which has a first surface and a second surface, and the first surface has a convex part; an outer frame, arranged around the outer side of the suspension board, and has a set of matching surfaces; at least one bracket connected between the suspension board and the outer frame to provide elastic support for the suspension board; and a piezoelectric element attached to the second surface of the suspension board for applying a voltage to drive the suspension board to bend and vibrate; Wherein, the at least one bracket is formed between the suspension board and the outer frame, so that the first surface of the suspension board and the assembly surface of the outer frame are formed into a non-coplanar structure, and the suspension board has a non-coplanar structure. The first surface and the resonance plate maintain a cavity distance. 16. The blood pressure measurement module of claim 13, wherein the micro pump further comprises a first insulating sheet, a conductive sheet and a second insulating sheet, wherein the air intake plate, the resonance sheet, the The piezoelectric actuator, the first insulating sheet, the conductive sheet and the second insulating sheet are stacked in sequence. 17. The blood pressure measurement module of claim 1, wherein the micro pump is a micro-electromechanical pump, comprising: a first base plate with a plurality of inflow holes, the plurality of inflow holes are tapered; a first oxide layer on which the first substrate is stacked, the first oxide layer has a plurality of confluence channels and a confluence chamber, and the plurality of confluence channels are communicated between the confluence chamber and the plurality of inflow holes; A second substrate, bonded to the first substrate, includes: A silicon chip layer with: An actuating part, which is circular; an outer peripheral portion, in the form of a hollow ring, surrounding the periphery of the actuating portion; a plurality of connecting parts respectively connected between the actuating part and the outer peripheral part; and a plurality of fluid passages surrounding the periphery of the actuating portion and respectively located between the plurality of connecting portions; a second oxide layer formed on the silicon chip layer, in the form of a hollow ring, and defining a vibration chamber with the silicon chip layer; and A silicon material layer, in the shape of a circle, located in the second oxide layer and bonded to the first oxide layer, has: a through hole formed in the center of the silicon material layer; a vibrating part, located in the peripheral area of the perforation; a fixing portion located at the peripheral region of the silicon material layer; and A piezoelectric element, in the shape of a circle, is stacked on the actuating portion of the silicon chip layer. 18. The blood pressure measurement module of claim 17, wherein the piezoelectric component comprises: next electrode layer; a piezoelectric layer, stacked on the lower electrode layer; An insulating layer is laid on part of the surface of the piezoelectric layer and part of the surface of the lower electrode layer; and An upper electrode layer is stacked on the insulating layer and the other surface of the piezoelectric layer without the insulating layer, and is used for electrical connection with the piezoelectric layer. 19 . The blood pressure measurement module of claim 1 , wherein the length is between 4 mm and 27 mm, the width is between 2 mm and 16 mm, and the height is between 1 mm and 8 mm. 20 . 20. The blood pressure measuring module according to claim 19, wherein the length is between 24mm and 27mm, the width is between 14mm and 16mm, and the height is between 6mm and 8mm.

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