Mobile blood pressure detection device

Abstract

The invention relates to the technical field of blood pressure detection, and discloses a movable blood pressure detection device which comprises a shell, a cuff used for pressing blood vessels is arranged in the shell, a sonic sensor used for detecting blood flow is installed above the cuff, a pulling mechanism is arranged in the shell, the pulling mechanism comprises a pair of pressing plates, and the pressing plates are arranged on the pressing plates. A pair of guide plates are installed in the shell, the pair of pressing plates are installed on the guide plates in a sliding mode, the pair of pressing plates jointly tension the cuff, an air cylinder used for driving the pulling mechanism to move is arranged in the shell, and the air cylinder is in transmission connection with the pressing plates. And after the cuff is tightened, the rubber pad arranged at the bottom of the pressing plate is in sliding contact with the cuff, so that the appropriate tightening degree of the cuff is ensured, the operation of manually binding the cuff is avoided in the process, the manpower consumption is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of blood pressure detection, and in particular to a mobile blood pressure detection device. Background Art

[0002] There are two ways to measure blood pressure: the Korotkoff sound method and the oscillometric method. The Korotkoff sound method is a classic blood pressure measurement method and is widely considered to be the "gold standard" for blood pressure measurement. Its accuracy has been verified in long-term clinical practice. During the Korotkoff sound method, a sphygmomanometer cuff is used to apply pressure to the brachial artery of the upper limb. When the pressure in the cuff is higher than the systolic pressure, the blood vessel is compressed and the blood flow is blocked. At this time, no sound can be heard with a stethoscope. As the pressure in the cuff gradually decreases, when the pressure is equal to or slightly lower than the systolic pressure, the blood flow rushes through the compressed blood vessels to form a vortex, producing Korotkoff sounds. At this time, the blood pressure value corresponding to the first pulsation sound heard by the stethoscope is the systolic pressure. Continue to deflate. When the pressure in the cuff is equal to or slightly lower than the diastolic pressure, the blood vessels are completely unobstructed and the Korotkoff sounds disappear. The blood pressure value corresponding to the last pulsation sound heard at this time is the diastolic pressure.

[0003] When the existing blood pressure detection device uses the Korotkoff sound method to detect blood pressure, it is necessary to manually tie the cuff, which consumes manpower. Moreover, when the cuff is manually tied, the binding force is uneven, resulting in low accuracy of the blood pressure detection result. Therefore, it does not meet the existing needs. In this regard, we propose a mobile blood pressure detection device. Summary of the invention

[0004] The present invention provides a mobile blood pressure detection device, which has the beneficial effect of automatically tightening the cuff, reducing manual operation, and making the binding force more uniform, thereby improving the accuracy of the blood pressure detection result. It solves the problem mentioned in the above background technology that when the existing blood pressure detection device uses the Korotkoff sound method to perform blood pressure detection, it is necessary to manually bind the cuff, which consumes manpower, and when the cuff is manually bound, the binding force is uneven, resulting in low accuracy of the blood pressure detection result.

[0005] The present invention provides the following technical solution: a mobile blood pressure detection device, comprising a housing, a cuff for compressing a blood vessel is arranged in the housing, an acoustic wave sensor for detecting blood flow is installed above the cuff, a pulling mechanism is arranged in the housing, the pulling mechanism comprises a pair of pressing plates, a pair of guide plates are installed in the housing, the pair of pressing plates are slidably mounted on the guide plates, and the pair of pressing plates jointly tighten the cuff;

[0006] A cylinder for driving the pulling mechanism to move is arranged in the shell, and the cylinder is transmission-connected with the pressing plate.

[0007] As an optional solution of the mobile blood pressure detection device described in the present invention, wherein: a No. 1 bracket is installed on the guide plate, an arc plate is installed on the No. 1 bracket, a Velcro for mounting the cuff is arranged on the inner side of the arc plate, the acoustic wave sensor is arranged at the upper end of the arc plate, and the acoustic wave sensor is in contact with the cuff, and a fixing ring for guiding the cuff is arranged at the bottom end of the arc plate;

[0008] One end of the cuff is mounted on the arc plate, and the other end of the cuff passes through the fixing ring and is clamped by the pressing plate.

[0009] As an optional solution of the mobile blood pressure detection device described in the present invention, wherein: a guide groove is opened on the side of the guide plate, a cross bar is slidably installed in the guide groove, and one end of the cross bar away from the guide groove is fixedly connected to the pressure plate;

[0010] A guide rod is installed on the side of the guide plate, a slider is slidably installed on the guide rod, a cross plate is installed on the slider, and the cross plate is fixedly connected to the piston rod of the cylinder;

[0011] The horizontal plate is provided with a tension spring, the other end of which is connected to the pressure plate, and vertical plates are installed at both ends of the horizontal plate. The vertical plates are provided with through slots, and the horizontal rod is slidably plugged into the through slots.

[0012] As an optional solution of the mobile blood pressure detection device described in the present invention, wherein: the guide groove includes a first horizontal groove, an inclined groove, a second horizontal groove and a vertical groove, and the first horizontal groove, the inclined groove, the second horizontal groove and the vertical groove are connected in sequence;

[0013] A valve plate for enabling the cross bar to move in one direction is arranged in the inclined groove, a No. 1 torsion spring is installed at one end of the valve plate, one end of the No. 1 torsion spring is connected to the valve plate, and the other end of the No. 1 torsion spring is connected to the guide plate, and a limit block for limiting the valve plate is also arranged in the inclined groove.

[0014] As an optional solution of the mobile blood pressure detection device described in the present invention, a rubber pad is provided on the side of the pressure plate close to the cuff, and when the pulling mechanism tightens the cuff, the rubber pad slides in contact with the cuff.

[0015] As an optional solution of the mobile blood pressure detection device described in the present invention, wherein: a sleeve is installed at the upper end of the arc plate, a second piston plate is slidably installed in the sleeve, a compression spring is connected between the second piston plate and the acoustic wave sensor, and the second piston plate is drivingly connected to the cuff;

[0016] When the cuff is tightened, the second piston plate moves downward.

[0017] As an optional solution of the mobile blood pressure detection device described in the present invention, wherein: a fixing rod is installed on the fixing ring, a gear is rotatably installed on the fixing rod, a flexible rack is arranged on the outer side of the cuff, the flexible rack is meshed with the gear, and the gear is drivingly connected with the second piston plate;

[0018] The fixing rod is provided with a spring for resetting the cuff, and the other end of the spring is connected to the gear.

[0019] As an optional solution of the mobile blood pressure detection device described in the present invention, wherein: a slide groove is provided on the fixed ring, a second slider is slidably installed in the slide groove, a rack is installed on the side of the second slider, and the rack is meshed with the gear;

[0020] A No. 2 bracket is arranged in the shell, a piston cylinder is installed on the No. 2 bracket, a No. 1 air pipe is connected between the piston cylinder and the sleeve, a No. 1 piston plate is slidably installed in the piston cylinder, a piston rod is installed at the bottom end of the No. 1 piston plate, and the piston rod is fixedly connected to the rack.

[0021] As an optional solution of a mobile blood pressure detection device described in the present invention, wherein: a rotating plate is hinged at the upper end of the arc plate, the sleeve is mounted on the rotating plate, a No. 2 torsion spring is arranged on the rotating plate, one end of the No. 2 torsion spring is connected to the rotating plate, and the other end of the No. 2 torsion spring is connected to the arc plate;

[0022] An airbag is arranged outside the arc plate, one end of the airbag is fixedly mounted on the arc plate, and the other end of the airbag is fixedly mounted on the rotating plate;

[0023] The piston cylinder is provided with a pair, a No. 1 air pipe is installed on one of the piston cylinders, and a No. 2 air pipe is installed on the other piston cylinder, and the No. 2 air pipe is connected to the air bag.

[0024] As an optional solution of the mobile blood pressure detection device described in the present invention, a movable block is installed on the top of the acoustic wave sensor, the diameter of the movable block is smaller than the inner diameter of the sleeve, and the movable block is fixedly connected to the compression spring.

[0025] The present invention has the following beneficial effects:

[0026] 1. In the mobile blood pressure detection device, when the patient undergoes blood pressure detection, the patient's arm is placed on the arc plate through the cuff, and the cylinder drives the horizontal plate and the vertical plate to move to the side away from the arc plate. At this time, the horizontal bar is located in the second horizontal groove, and a pair of pressure plates clamp the cuff together. When the vertical plate moves, the horizontal bar and the pressure plate move synchronously with the vertical plate due to the sliding connection between the horizontal bar and the through groove. During the movement of the pressure plate, the cuff is tightened. After the cuff is tightened, the rubber pad arranged at the bottom of the pressure plate slides in contact with the cuff to ensure that the cuff is tightened to an appropriate degree. Due to the differences in arm circumference sizes of different patients, after the cuff of the device is tightened, the cuff can fit the arm well, ensuring that after the cuff is inflated, pressure can be applied evenly to the arm, avoiding the operation of manually tying the cuff in the process, thereby reducing manpower consumption and increasing the practicality of the device.

[0027] 2. In the mobile blood pressure detection device, when the cuff is tightened, the flexible rack drives the gear to rotate, and the spring arranged on the fixed rod accumulates force. At the same time, the gear drives the rack and the piston rod to move upward, and the No. 1 piston plate moves up and discharges the gas in the piston cylinder through the No. 1 air pipe. The gas discharged from the No. 1 air pipe enters the sleeve, and the No. 2 piston plate in the sleeve pushes the acoustic wave sensor downward through the compression spring, so that the acoustic wave sensor and the cuff fit better, the signal strength received by the acoustic wave sensor is increased, the interference of environmental noise on the acoustic wave sensor is reduced, the accuracy of the detection result is ensured, and the reliability of the device is increased.

[0028] 3. The mobile blood pressure detection device has a rotating plate hinged on the upper end of the arc plate, a sleeve is installed on the rotating plate, an airbag is arranged on the outer side of the arc plate, one end of the airbag is fixedly installed on the arc plate, and the other end of the airbag is fixedly installed on the rotating plate. A pair of piston cylinders are arranged, one piston cylinder is installed with a No. 2 air pipe, and the No. 2 air pipe is connected to the airbag. When the cuff is tightened, one of the piston cylinders inflates the airbag through the No. 2 air pipe. After the airbag expands, the rotating plate deflects toward the inside of the arc plate, so that the acoustic wave sensor moves downward and shifts toward the inside of the cuff, so that the acoustic wave sensor can be located directly above the brachial artery of the upper limb, thereby facilitating signal collection of the acoustic wave sensor, and further increasing the accuracy and reliability of blood pressure detection by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the pulling mechanism of the present invention.

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the guide plate of the present invention.

[0032] Figure 4 It is a schematic structural diagram of the guide groove of the present invention.

[0033] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0034] Figure 6 It is a schematic diagram of the cross-sectional structure of the sleeve of the present invention.

[0035] Figure 7 It is a schematic diagram of the cross-sectional structure of the chute of the present invention.

[0036] Figure 8 It is a schematic diagram of the cross-sectional structure of the gear of the present invention.

[0037] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at point B in the middle.

[0038] Fig.10 It is a schematic diagram comparing the positions of the acoustic wave sensors before and after the rotating plate is deflected according to the present invention.

[0039] In the figure: 101, housing; 102, cuff; 103, acoustic wave sensor; 2100, pulling mechanism; 201, guide plate; 202, bracket No. 1; 203, curved plate; 204, Velcro; 205, cylinder; 206, fixing ring; 207, guide groove; 2071, horizontal groove No. 1; 2072, inclined groove; 2073, horizontal groove No. 2; 2074, vertical groove; 208, guide rod; 209, slider; 210, horizontal plate; 211, vertical plate; 212, tension spring; 213, pressure plate; 214, rubber pad; 215, cross bar; 2 16. Groove; 217. Valve plate; 218. Torsion spring No. 1; 219. Limit block; 301. Air pipe No. 1; 302. Piston cylinder; 303. Sleeve; 304. Slide; 305. Flexible rack; 306. Rack; 307. Gear; 308. Fixed rod; 309. Piston rod; 310. Piston plate No. 1; 311. Spring; 312. Bracket No. 2; 313. Slider No. 2; 401. Air pipe No. 2; 402. Turn plate; 403. Air bag; 404. Movable block; 405. Torsion spring No. 2; 406. Compression spring; 407. Piston plate No. 2. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Embodiment 1: This embodiment is intended to promote the solution of the problem that when the existing blood pressure detection device uses the Korotkoff sound method to detect blood pressure, the cuff needs to be tied manually, which consumes manpower, and when the cuff is tied manually, the accuracy of the blood pressure detection result is low due to uneven tying force. Please refer to Figures 1 to 10 A mobile blood pressure detection device includes a shell 101, which is configured as a shell with a detection hole. A cuff 102 for compressing a blood vessel is arranged in the shell 101, and an acoustic wave sensor 103 for detecting blood flow is installed above the cuff 102. A pulling mechanism 2100 is arranged in the shell 101, and the pulling mechanism 2100 includes a pair of pressing plates 213. A pair of guide plates 201 are installed in the shell 101, and the pair of pressing plates 213 are slidably installed on the guide plates 201. The pair of pressing plates 213 jointly tighten the cuff 102, and a cylinder 205 for driving the pulling mechanism 2100 to move is arranged in the shell 101, and the cylinder 205 is transmission-connected to the pressing plate 213.

[0042] It should be noted that the cuff 102 is configured as an inflatable cuff, and a gas pump and a deflation valve for inflating and discharging gas in the cuff 102 are provided in the housing 101. The acoustic wave sensor 103 is closely attached to the cuff 102, and the acoustic wave sensor 103 converts the received blood flow sound signal into an electronic signal. During detection, the cuff 102 is inflated, and the cuff 102 applies pressure to the brachial artery of the upper limb. When the pressure in the cuff 102 is higher than the systolic pressure, the blood vessel is compressed and closed, and the blood flow is blocked. At this time, the acoustic wave sensor 103 is used to detect the blood flow. The sound of blood flow cannot be received. As the pressure in the cuff 102 gradually decreases, when the pressure is equal to or slightly lower than the systolic pressure, the blood flows through the compressed blood vessels to form a vortex and produce Korotkoff sounds. At this time, the blood pressure value corresponding to the first pulsation sound received by the sound wave sensor 103 is the systolic pressure. Continue to deflate. When the pressure in the cuff 102 is equal to or slightly lower than the diastolic pressure, the blood vessels are completely unobstructed and the Korotkoff sounds disappear. At this time, the blood pressure value corresponding to the last pulsation sound received by the sound wave sensor 103 is the diastolic pressure.

[0043] For details, please refer to Figure 1 , Figure 2 A No. 1 bracket 202 is installed on the guide plate 201, and an arc plate 203 is installed on the No. 1 bracket 202. A Velcro 204 for movably mounting the cuff 102 is arranged on the inner side of the arc plate 203. The acoustic wave sensor 103 is arranged at the upper end of the arc plate 203, and the acoustic wave sensor 103 is in contact with the cuff 102. A fixing ring 206 for guiding the cuff 102 is arranged at the bottom end of the arc plate 203. One end of the cuff 102 is mounted on the arc plate 203, and the other end of the cuff 102 passes through the fixing ring 206 and is clamped by the pressing plate 213.

[0044] Please refer to Figure 3 , Figure 4A guide groove 207 is provided on the side of the guide plate 201, and a cross bar 215 is slidably installed in the guide groove 207. One end of the cross bar 215 away from the guide groove 207 is fixedly connected to the pressure plate 213. A guide rod 208 is installed on the side of the guide plate 201. A slider 209 is slidably installed on the guide rod 208. A cross plate 210 is installed on the slider 209. The cross plate 210 is fixedly connected to the piston rod of the cylinder 205. A tension spring 212 is provided on the cross plate 210, and the other end of the tension spring 212 is connected to the pressure plate 213. Vertical plates 211 are installed at both ends of the cross plate 210. A through groove 216 is provided on the vertical plate 211, and the cross bar 215 is slidably plugged into the through groove 216.

[0045] Specifically, the guide groove 207 includes a horizontal groove No. 1 2071, an inclined groove 2072, a horizontal groove No. 2 2073 and a vertical groove 2074. The horizontal groove No. 1 2071, the inclined groove 2072, the horizontal groove No. 2 2073 and the vertical groove 2074 are connected in sequence. A valve plate 217 for enabling the cross bar 215 to move in one direction is arranged in the inclined groove 2072. A torsion spring No. 1 218 is installed at one end of the valve plate 217. One end of the torsion spring No. 1 218 is connected to the valve plate 217, and the other end of the torsion spring No. 1 218 is connected to the guide plate 201. A limit block 219 for limiting the valve plate 217 is also arranged in the inclined groove 2072.

[0046] It should be noted that when the cross bar 215 is located in the second horizontal groove 2073, a pair of pressure plates 213 jointly tighten the cuff 102. When the cross bar 215 has the first horizontal groove 2071 and moves to the end close to the vertical groove 2074, the cross bar 215 enters the vertical groove 2074 under the tension of the tension spring 212. At this time, the pair of pressure plates 213 no longer clamp the cuff 102. When the second horizontal groove 2073 of the cross bar 215 enters the inclined groove 2072, the valve plate 217 will rotate. When the cross bar 215 is located in the inclined groove 2072, under the action of the valve plate 217, the cross bar 215 can only enter the first horizontal groove 2071 here, thereby completing a cycle.

[0047] In addition, a rubber pad 214 is provided on one side of the pressure plate 213 close to the cuff 102. The rubber pad 214 can be deformed. When the cross bar 215 is located in the second horizontal groove 2073, a pair of pressure plates 213 and the rubber pad 214 press the cuff 102 together. When the pressure plate 213 moves, the pressure plate 213 uses the friction between the rubber pad 214 and the cuff 102 to tighten the cuff 102. When the pulling mechanism 2100 tightens the cuff 102, the rubber pad 214 slides with the cuff 102. Dynamic contact, specifically, when the pressing plate 213 just starts to pull the cuff 102, the static friction between the pressing plate 213 and the cuff 102 gradually increases. After the cuff 102 is tightened, the friction between the rubber pad 214 and the cuff 102 becomes sliding friction, and the friction between the pressing plate 213 and the cuff 102 reaches a maximum value (sliding friction). Moreover, with the subsequent movement of the pressing plate 213, the sliding friction is constant, thereby ensuring that the cuff is tightened to a certain degree, and the pressure applied to the arms of people with different arm circumferences is constant.

[0048] In this embodiment, when the patient is undergoing blood pressure testing, the patient's arm is placed on the curved plate 203 through the cuff 102, and the cylinder 205 drives the horizontal plate 210 and the vertical plate 211 to move to the side away from the curved plate 203. At this time, the cross bar 215 is located in the second horizontal groove 2073, and a pair of pressing plates 213 clamp the cuff 102 together. When the vertical plate 211 moves, the cross bar 215 and the pressing plate 213 move synchronously with the vertical plate 211 due to the sliding connection between the cross bar 215 and the through groove 216. During the movement of the pressing plate 213, the cuff is 102 is tightened. After the cuff 102 is tightened, the rubber pad 214 arranged at the bottom of the pressure plate 213 slides in contact with the cuff 102, thereby ensuring that the cuff 102 is appropriately tightened. Due to the differences in arm circumference sizes of different patients, after the cuff 102 of the device is tightened, the cuff 102 can fit the arm well, ensuring that after the cuff 102 is inflated, pressure can be evenly applied to the arm, and in this process, the operation of manually tying the cuff 102 is avoided, thereby reducing manpower consumption and increasing the practicality of the device.

[0049] Embodiment 2: This embodiment is intended to solve the problem that for patients with smaller arm diameters, after the cuff 102 is tightened, the acoustic wave sensor 103 does not fit tightly with the cuff 102, resulting in a decrease in the intensity of the acoustic wave signal received by the acoustic wave sensor 103, causing the target signal and the environmental signal to interfere with each other, thereby affecting the detection result. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figures 1 to 10 A sleeve 303 is installed at the upper end of the arc plate 203, and a No. 2 piston plate 407 is slidably installed in the sleeve 303. A compression spring 406 is connected between the No. 2 piston plate 407 and the acoustic wave sensor 103. The No. 2 piston plate 407 is transmission-connected to the cuff 102. When the cuff 102 is tightened, the No. 2 piston plate 407 moves downward.

[0050] See Figure 2 , Figure 8 A fixing rod 308 is installed on the fixing ring 206, and a gear 307 is rotatably installed on the fixing rod 308. A flexible rack 305 is arranged on the outside of the cuff 102, and the flexible rack 305 is arranged as a nylon rack. The flexible rack 305 is meshed with the gear 307, and the gear 307 is connected to the second piston plate 407 in transmission. A spring 311 for resetting the cuff 102 is arranged on the fixing rod 308, and the other end of the spring 311 is connected to the gear 307, wherein the spring 311 is arranged as a volute spring.

[0051] When the cuff 102 is tightened, the flexible rack 305 drives the gear 307 to rotate, and the spring 311 set on the fixed rod 308 accumulates power. After the patient's blood pressure test is completed, the patient takes out his arm, and the cross bar 215 moves from the No. 1 horizontal groove 2071 to the vertical groove 2074. At this time, the pressure plate 213 and the rubber pad 214 no longer press the cuff 102, and then the spring 311 set on the fixed rod 308 is released, and the gear 307 rotates in the opposite direction, and the gear 307 drives the flexible rack 305 to move in the opposite direction, thereby further resetting the cuff 102.

[0052] See Figure 7 A slide groove 304 is provided on the fixed ring 206, and a No. 2 slider 313 is slidably installed in the slide groove 304. A rack 306 is installed on the side of the No. 2 slider 313, and the rack 306 is meshed with the gear 307. A No. 2 bracket 312 is provided in the shell 101, and a piston cylinder 302 is installed on the No. 2 bracket 312. A No. 1 air pipe 301 is connected between the piston cylinder 302 and the sleeve 303. A No. 1 piston plate 310 is slidably installed in the piston cylinder 302, and a piston rod 309 is installed at the bottom end of the No. 1 piston plate 310, and the piston rod 309 is fixedly connected to the rack 306.

[0053] In this embodiment: when the cuff 102 is tightened, the flexible rack 305 drives the gear 307 to rotate, and at the same time the gear 307 drives the rack 306 and the piston rod 309 to move upward, the No. 1 piston plate 310 moves upward and discharges the gas in the piston cylinder 302 through the No. 1 air pipe 301, and the gas discharged from the No. 1 air pipe 301 enters the sleeve 303, and the No. 2 piston plate 407 in the sleeve 303 pushes the acoustic wave sensor 103 downward through the compression spring 406, so as to facilitate the acoustic wave sensor 103 to fit better with the cuff 102, increase the signal strength received by the acoustic wave sensor 103, reduce the interference of environmental noise on the acoustic wave sensor 103, ensure the accuracy of the detection result, and increase the reliability of the device.

[0054] Embodiment 3: This embodiment is intended to help solve the problem that the brachial artery of the upper limb is closer to the inner side of the arc plate 203 for patients with smaller arm diameters, and there is a deviation between the acoustic wave sensor 103 and the detection position. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figures 1 to 10 A rotating plate 402 is hinged on the upper end of the arc plate 203, and the sleeve 303 is installed on the rotating plate 402. A No. 2 torsion spring 405 is arranged on the rotating plate 402, and one end of the No. 2 torsion spring 405 is connected to the rotating plate 402, and the other end of the No. 2 torsion spring 405 is connected to the arc plate 203. An airbag 403 is arranged on the outside of the arc plate 203, and one end of the airbag 403 is fixedly mounted on the arc plate 203, and the other end of the airbag 403 is fixedly mounted on the rotating plate 402. A pair of piston cylinders 302 are arranged, and a No. 1 air pipe 301 is installed on one piston cylinder 302, and a No. 2 air pipe 401 is installed on the other piston cylinder 302, and the No. 2 air pipe 401 is connected to the airbag 403.

[0055] In addition, see Fig.10 A movable block 404 is installed on the top of the acoustic wave sensor 103. The movable block 404 is set as a cylindrical block. The movable block 404 is fixedly connected to the compression spring 406, and the diameter of the movable block 404 is smaller than the inner diameter of the sleeve 303. Therefore, the movable block 404 can move up and down on the sleeve 303, and the movable block 404 can also tilt to both sides. After the rotating plate 402 is deflected, the sleeve 303 will tilt in the direction of the arc plate 203. The tiltable design of the movable block 404 allows the acoustic wave sensor 103 to maintain a horizontal state while contacting with the cuff 102, thereby ensuring that the contact area between the acoustic wave sensor 103 and the cuff 102 remains unchanged.

[0056] Specifically, when the cuff 102 is tightened, the flexible rack 305 drives the gear 307 to rotate, and at the same time the gear 307 drives the rack 306 and the piston rod 309 to move upward, the No. 1 piston plate 310 moves upward and discharges the gas in the piston cylinder 302 from the No. 2 air pipe 401, and the No. 2 air pipe 401 fills the gas into the airbag 403. After the airbag 403 is inflated, the degree of bending becomes larger, so that the rotating plate 402 deflects as the airbag 403 bends. After the cuff 102 is reset, the gas in the airbag 403 returns to the piston cylinder 302, and the rotating plate 402 is reset under the action of the No. 2 torsion spring 405.

[0057] In this embodiment: a rotating plate 402 is hinged on the upper end of the arc plate 203, and a sleeve 303 is installed on the rotating plate 402. An airbag 403 is arranged on the outer side of the arc plate 203, one end of the airbag 403 is fixedly mounted on the arc plate 203, and the other end of the airbag 403 is fixedly mounted on the rotating plate 402. A pair of piston cylinders 302 are arranged, and a No. 2 air pipe 401 is installed on one piston cylinder 302, and the No. 2 air pipe 401 is connected with the airbag 403. When the cuff 102 is tightened, one of the piston cylinders 302 inflates the airbag 403 through the No. 2 air pipe 401. After the airbag 403 expands, the rotating plate 402 deflects toward the inside of the arc plate 203, so that the acoustic wave sensor 103 moves downward and shifts toward the inside of the cuff 102, so that the acoustic wave sensor 103 can be located directly above the brachial artery of the upper limb, thereby facilitating the signal collection of the acoustic wave sensor 103, and further increasing the accuracy and reliability of the blood pressure detection of the device.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A mobile blood pressure detection device, comprising a housing (101), wherein a cuff (102) for compressing a blood vessel is arranged inside the housing (101), and an acoustic wave sensor (103) for detecting blood flow is installed above the cuff (102), characterized in that: A pulling mechanism (2100) is provided in the shell (101), the pulling mechanism (2100) comprising a pair of pressing plates (213), a pair of guide plates (201) are installed in the shell (101), the pair of pressing plates (213) are slidably installed on the guide plates (201), and the pair of pressing plates (213) together tighten the cuff (102); A rubber pad (214) is provided on one side of the pressure plate (213) close to the cuff (102); when the pulling mechanism (2100) tightens the cuff (102), the rubber pad (214) comes into sliding contact with the cuff (102); A cylinder (205) for driving the pulling mechanism (2100) to move is arranged in the housing (101), and the cylinder (205) is in transmission connection with the pressing plate (213).

2. A mobile blood pressure detection device according to claim 1, characterized in that: A No. 1 bracket (202) is mounted on the guide plate (201), an arc-shaped plate (203) is mounted on the No. 1 bracket (202), a Velcro (204) for mounting the cuff (102) is arranged on the inner side of the arc-shaped plate (203), the acoustic wave sensor (103) is arranged at the upper end of the arc-shaped plate (203), and the acoustic wave sensor (103) is in contact with the cuff (102), and a fixing ring (206) for guiding the cuff (102) is arranged at the bottom end of the arc-shaped plate (203); One end of the cuff (102) is mounted on the arc-shaped plate (203), and the other end of the cuff (102) passes through the fixing ring (206) and is clamped by the pressing plate (213).

3. A mobile blood pressure detection device according to claim 1, characterized in that: A guide groove (207) is provided on the side of the guide plate (201), a cross bar (215) is slidably installed in the guide groove (207), and one end of the cross bar (215) away from the guide groove (207) is fixedly connected to the pressing plate (213); A guide rod (208) is installed on the side of the guide plate (201), a slider (209) is slidably installed on the guide rod (208), a cross plate (210) is installed on the slider (209), and the cross plate (210) is fixedly connected to the piston rod of the cylinder (205); A tension spring (212) is provided on the transverse plate (210), the other end of the tension spring (212) is connected to the pressure plate (213), vertical plates (211) are installed at both ends of the transverse plate (210), a through slot (216) is provided on the vertical plate (211), and the transverse rod (215) is slidably plugged into the through slot (216).

4. A mobile blood pressure detection device according to claim 3, characterized in that: The guide groove (207) comprises a first horizontal groove (2071), an inclined groove (2072), a second horizontal groove (2073) and a vertical groove (2074); the first horizontal groove (2071), the inclined groove (2072), the second horizontal groove (2073) and the vertical groove (2074) are connected in sequence; A valve plate (217) is arranged in the inclined groove (2072) to enable the cross bar (215) to move in one direction. A first torsion spring (218) is installed at one end of the valve plate (217). One end of the first torsion spring (218) is connected to the valve plate (217), and the other end of the first torsion spring (218) is connected to the guide plate (201). A limit block (219) is also arranged in the inclined groove (2072) to limit the valve plate (217).

5. The mobile blood pressure detection device according to claim 2, characterized in that: A sleeve (303) is installed at the upper end of the arc-shaped plate (203), a second piston plate (407) is slidably installed in the sleeve (303), a compression spring (406) is connected between the second piston plate (407) and the acoustic wave sensor (103), and the second piston plate (407) is drivingly connected to the cuff (102); When the cuff (102) is tightened, the second piston plate (407) moves downward.

6. A mobile blood pressure detection device according to claim 5, characterized in that: A fixing rod (308) is mounted on the fixing ring (206), a gear (307) is rotatably mounted on the fixing rod (308), a flexible rack (305) is arranged on the outside of the cuff (102), the flexible rack (305) is meshed with the gear (307), and the gear (307) is transmission-connected to the second piston plate (407); The fixing rod (308) is provided with a spring (311) for resetting the cuff (102), and the other end of the spring (311) is connected to the gear (307).

7. A mobile blood pressure detection device according to claim 6, characterized in that: The fixing ring (206) is provided with a slide groove (304), a second slider (313) is slidably mounted in the slide groove (304), a rack (306) is mounted on the side of the second slider (313), and the rack (306) is meshed with the gear (307); A No. 2 bracket (312) is arranged in the housing (101), a piston cylinder (302) is mounted on the No. 2 bracket (312), a No. 1 air pipe (301) is connected between the piston cylinder (302) and the sleeve (303), a No. 1 piston plate (310) is slidably mounted in the piston cylinder (302), a piston rod (309) is mounted at the bottom end of the No. 1 piston plate (310), and the piston rod (309) is fixedly connected to the rack (306).

8. A mobile blood pressure detection device according to claim 7, characterized in that: A rotating plate (402) is hingedly connected to the upper end of the arc-shaped plate (203), the sleeve (303) is mounted on the rotating plate (402), a No. 2 torsion spring (405) is arranged on the rotating plate (402), one end of the No. 2 torsion spring (405) is connected to the rotating plate (402), and the other end of the No. 2 torsion spring (405) is connected to the arc-shaped plate (203); An airbag (403) is arranged outside the arc-shaped plate (203), one end of the airbag (403) is fixedly mounted on the arc-shaped plate (203), and the other end of the airbag (403) is fixedly mounted on the rotating plate (402); The piston cylinder (302) is provided in pair, one of the piston cylinders (302) is provided with a first air pipe (301), and the other of the piston cylinders (302) is provided with a second air pipe (401), and the second air pipe (401) is communicated with the air bag (403).

9. A mobile blood pressure detection device according to claim 8, characterized in that: A movable block (404) is installed at the top of the acoustic wave sensor (103); the diameter of the movable block (404) is smaller than the inner diameter of the sleeve (303); and the movable block (404) is fixedly connected to the compression spring (406).

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