Wearable blood pressure detection equipment

Abstract

The invention relates to wearable blood pressure detection equipment, and relates to the technical field of medical instruments, the wearable blood pressure detection equipment comprises a wearable main body, an air collection hose, an air guide pipe, an air pressure adjusting assembly, an air pressure detection assembly and a sliding ring, the wearable main body comprises a dial plate and a watchband, and the inner side of the watchband is provided with a containing groove; the gas-guide tube is mounted in the watchband, two ends of the gas-guide tube are communicated in the dial, the gas-collecting hoses are arranged on two sides of the watchband and are in contact with arms, the gas-guide tube is communicated with the gas-collecting hoses, and the gas-collecting hoses can be placed in the accommodating grooves after being deflated; the air pressure adjusting assembly is arranged in the dial plate, is communicated with the air guide pipe and is used for inflating and deflating the air collecting hose so as to adjust the air pressure in the air collecting hose; the air pressure detection assembly comprises a pressure sensor arranged in the air guide pipe and used for monitoring the air pressure in the air collection hose. The watchband is sleeved with the sliding ring, the sliding ring is connected with an extrusion block arranged in the containing groove in a sliding mode, and the extrusion block is used for exhausting gas in the gas collection hose. The blood pressure detection device can reduce the amount of gas remaining in the gas collection hose and improve the blood pressure detection precision.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a wearable blood pressure detection device. Background Art

[0002] Hypertension is a chronic disease, and most cases are incurable. Regular blood pressure monitoring and antihypertensive medication are required to maintain blood pressure within the target range. Currently, the most accurate method for measuring blood pressure is the cuff pressure method. The oscillometric method is a non-invasive method that indirectly estimates blood pressure based on the amplitude changes of arterial wall vibration waves (oscillation waves). This method uses an inflatable cuff (typically a built-in inflatable air collection hose in a watch) to apply pressure to the upper limb. When the pressure within the cuff exceeds the systolic pressure, the blood vessels are compressed and blood flow is blocked. The cuff is then slowly deflated. As the pressure within the cuff drops below the systolic pressure, the blood vessels begin to pulsate again, and blood flow resumes. During this process, the watch's built-in pressure sensor detects vibration signals from the blood vessel walls, which correlate with blood pressure.

[0003] Before measurement, the gas in the gas collecting hose needs to be exhausted. Currently, the exhaust valve is opened and the gas collecting hose is pressed to exhaust the gas. However, it is easy for the gas in the gas collecting hose to be incompletely exhausted. When in use, there is residual gas in the gas collecting hose, which will cause errors in the blood pressure measurement results. Summary of the Invention

[0004] The purpose of this application is to provide a wearable blood pressure detection device, which can increase the gas discharge in the gas collecting hose before measurement and improve the detection accuracy of the wearable blood pressure detection device.

[0005] This application provides a wearable blood pressure detection device, which adopts the following technical solutions: A wearable blood pressure detection device, comprising A wearing body, the wearing body comprising a dial and a watch strap, wherein a receiving groove is provided on the inner side of the watch strap; An air collecting hose and an air duct, wherein the air duct is installed in the watch strap and connected to the watch dial at both ends. The air collecting hose is arranged on both sides of the watch strap and fits the arm. The air duct is connected to the air collecting hose. The air collecting hose can be placed in the receiving groove after being deflated. The air pressure regulating assembly is arranged in the dial and is connected to the air guide pipe, and is used to inflate and deflate the air collecting hose to adjust the air pressure in the air collecting hose; An air pressure detection assembly, comprising a pressure sensor disposed in the air duct, for monitoring the air pressure in the air collecting hose; The sliding ring is sleeved on the watchband. The sliding ring is connected to an extrusion block that is slidably arranged in the accommodating groove. The extrusion block is used to discharge the gas in the gas collecting hose.

[0006] Optionally, when the air pressure regulating assembly exhausts the air duct, the extrusion block slides in the accommodating groove to compact and flatten the air collecting hose.

[0007] Optionally, the air pressure regulating assembly includes a slide, a piston and a drive component group, the drive component group is used to drive the piston to move back and forth in the slide to realize the inflation and deflation of the gas collecting hose, and the slide is connected to a connecting pipe, which is connected to the air guide pipe.

[0008] Optionally, the bottom of the dial is fixedly connected to two relatively arranged fixing seats, and a first air guide hole and a second air guide hole are respectively opened in the two fixing seats, one end of the air guide tube is inserted into the first air guide hole, and the other end of the air guide tube is inserted into the second air guide hole, and the first air guide hole and the second air guide hole are provided with one-way valves with opposite air intake directions, and the connecting tube can be alternately connected with the first air guide hole and the second air guide hole.

[0009] Optionally, an airflow switching assembly is provided in the dial, the airflow switching assembly comprising an airflow slot provided in the dial, an airflow plate slidably provided in the airflow slot, a first airflow channel and a second airflow channel provided in the airflow plate, the first airflow channel being capable of simultaneously communicating with the first air guide hole and the connecting tube, and the second airflow channel being capable of simultaneously communicating with the second air guide hole and the connecting tube; When the air flow plate moves in the air flow groove, the communicating pipe can switch between the first air flow channel and the second air flow channel.

[0010] Optionally, an air inlet and an air outlet are provided on the dial, and one-way valves with opposite air inlet directions are provided in the air inlet and the air outlet. The air inlet is connected to the first air flow channel, and the air outlet is connected to the second air flow channel.

[0011] Optionally, the driving component group includes a driving source, a driving gear, a driving gear, a rotating disk and a connecting rod, the outer wall of the slide cylinder is connected to a support seat, the driving source is fixed on the support seat, the driving gear is fixed to the output end of the driving source, the driving gear is engaged with the driving gear, the rotating disk is fixed on one side of the driving gear, one end of the connecting rod is hinged to the piston, and the other end of the connecting rod is hinged to the rotating disk.

[0012] Optionally, a limit assembly is provided in the air flow slot, and the limit assembly is used to When the first air flow channel is connected to the first air guide hole and the connecting pipe, or when the second air flow channel is connected to the second air guide hole and the connecting pipe, the air flow plate is limited.

[0013] Optionally, the limiting assembly includes a threaded screw rotatably arranged in the airflow groove, the threaded screw is threadedly connected to the airflow plate and passes through the airflow plate, and a motor for driving the threaded screw to rotate is fixed in the airflow groove.

[0014] In summary, this application includes at least one of the following beneficial technical effects: 1. After measuring the blood pressure, quickly discharge the gas in the gas collecting hose by squeezing it until it is flat, then store the gas collecting hose between the watch strap and the skin of the arm, and initially squeeze the gas collecting hose into the receiving groove. Move the sliding ring to the watch strap, and place the gas collecting hose on the bottom of the sliding block. Move the sliding ring, and the sliding block squeezes the gas collecting hose to squeeze out the gas in the gas collecting hose, thereby improving the gas discharge efficiency in the gas collecting hose and reducing the possibility of gas in the inner cavity of the gas collecting hose. At the same time, after the sliding block squeezes the gas collecting hose, it can make the gas collecting hose fit on the inner wall of the receiving groove, which not only protects the gas collecting hose and prevents the gas collecting hose from being exposed and punctured, but also avoids the gas collecting hose from fitting on the skin, making it difficult for sweat on the skin to evaporate.

[0015] While the extrusion block is compressing the gas collecting hose, the air pressure regulating assembly is sucking air from the hose. The hose is deformed, causing the two sides of the hose to fit tightly together, further reducing the possibility of residual gas inside the hose and improving the accuracy of the next blood pressure measurement. Before the hose is sucked in, a sliding block is used to squeeze and exhaust the hose. This not only smoothes out wrinkles on the hose surface but also keeps the air pressure inside the hose consistent. This reduces the possibility of local folding or twisting of the hose when the hose is sucked in, making it easier to store and reducing the possibility of skin scratches caused by wrinkles.

[0016] 2. The air pressure regulating assembly realizes the functions of suction and inflation by reciprocating the piston in the slide cylinder. When the air collecting hose needs to be inflated, the air flow plate is slid so that the first air flow channel is connected to the first air guide hole and the connecting pipe at the same time. When the piston moves up, the air flow outside the dial enters the first air flow channel and the slide cylinder through the air inlet. When the piston moves down, the air flow enters the air guide pipe through the first air flow channel and passes into the air collecting hose. Since the air inlet and the first air guide hole are provided with a one-way valve, the air flow can only enter the first air flow from the air inlet but cannot exit from the air inlet. Similarly, the air flow can only enter the air guide pipe from the first air guide hole but cannot enter the first air flow channel from the first air guide pipe.

[0017] When the gas collecting hose needs to be deflated, the airflow plate slides, connecting the second airflow channel to the second air guide hole and the connecting pipe. When the piston moves upward, the gas in the gas collecting hose enters the second airflow channel and the slide cylinder from the second air guide hole, thereby discharging the gas in the gas collecting hose. When the piston moves downward, the gas is discharged through the air outlet hole. Because both the air outlet hole and the second air guide hole are equipped with a one-way valve, the gas can only enter the second airflow channel from the air guide hole and be discharged from the air outlet hole. This realizes the inflation and deflation functions of the gas collecting hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a wearable blood pressure detection device according to an embodiment of the present application; Figure 2 This is a schematic diagram showing the structure of the fixing seat in an embodiment of the present application; Figure 3 is a schematic diagram showing the cross-sectional structure of a fixing base according to an embodiment of the present application; Figure 4 is a schematic diagram of the cross-sectional structure of the display dial according to an embodiment of the present application; Figure 5 is a schematic diagram showing the cross-sectional structure of an airflow plate according to an embodiment of the present application; Figure 6 It is an enlarged structural schematic diagram showing the air pressure regulating assembly according to an embodiment of the present application.

[0019] Explanation of the accompanying drawings: 1. Dial; 11. Display panel; 2. Strap; 21. Air duct; 22. Air collecting hose; 23. Receiving groove; 3. Air pressure regulating assembly; 31. Slide; 32. Piston; 33. Driving component group; 331. Driving gear; 332. Active gear; 333. Driving source; 334. Connecting rod; 34. Connecting pipe; 35. Support seat; 4. Sliding ring; 41. Extrusion block; 5. Air flow switching assembly; 51. Air flow groove; 52. Inflation port; 53. Deflating port; 54. Air inlet; 55. Air outlet; 56. One-way valve; 57. Air flow plate; 571. First air flow channel; 572. Second air flow channel; 6. Limiting assembly; 61. Threaded screw; 62. Motor; 7. Fixing seat; 71. First air guide hole; 72. Second air guide hole; 73. Card slot. DETAILED DESCRIPTION

[0020] Reference Figures 1 to 6 The present application provides a wearable blood pressure detection device, including a wearable body, which includes a dial 1 and a strap 2 connected to each other. The dial 1 is inlaid with a display panel 11, which is used to display the user's blood pressure information and can also display time, weather, text messages and other functions. This method is a conventional method used by those skilled in the art and will not be elaborated on here.

[0021] Reference Figure 1 and Figure 2Air tubes 21 are symmetrically arranged on both sides of the watch strap 2, and an air collection hose 22 is arranged along the length of the air tubes 21. An air pressure regulating assembly 3 and an air pressure detection assembly are arranged inside the dial 1. The two ends of the air tubes 21 are inserted into the dial 1 and connected to the air pressure regulating assembly 3. The air pressure regulating assembly 3 is used to inflate and deflate the air tubes 21. The air pressure detection assembly includes a pressure sensor arranged inside the air tubes 21. The display panel 11 can monitor the pressure changes in the air tubes 21 in real time through the pressure sensor, thereby detecting blood pressure. A receiving groove 23 is provided on the side of the watch strap 2 that contacts the user's skin. The air collection hose 22 can be inserted into the receiving groove 23 after being deflated. A sliding ring 4 is sleeved on the watch strap 2. The inner wall of the sliding ring 4 is fixedly connected to an extrusion block 41 embedded in the receiving groove 23.

[0022] When blood pressure needs to be measured, the air collecting hose 22 is removed from the receiving slot 23 and placed on both sides of the watchband 2. The air pressure regulating assembly 3 inflates the airway tube 21, causing the air collecting hose 22 to expand and squeeze the blood vessels until the radial artery pulse disappears and the pressure continues to increase by 30-40 mmHg. The air pressure regulating assembly 3 then slowly deflates the air collecting hose 22, gradually reducing the pressure within the air collecting hose 22. When the pressure drops to or slightly below the systolic pressure, blood begins to flow through the compressed blood vessels, forming vortices and generating oscillation waves. The pressure sensor can detect the systolic pressure based on the pressure changes within the air collecting hose 22. When the pressure in the air collecting hose 22 continues to drop to or slightly below the diastolic pressure, the blood vessels are fully unobstructed, blood flow is no longer obstructed, and the oscillation waves also change accordingly, thereby determining the diastolic pressure.

[0023] After the blood pressure test is completed, the air pressure regulating component 3 continues to deflate the air guide tube 21, and at the same time squeezes the gas collecting hose 22 to accelerate the discharge efficiency of the gas in the gas collecting hose 22 until the gas collecting hose 22 becomes flat, and then the gas collecting hose 22 is inserted into the receiving groove 23, and the sliding ring 4 is moved so that the squeezing block 41 enters the receiving groove 23 and covers the top of the gas collecting hose 22. When the sliding ring 4 moves on the strap 2, the squeezing block 41 applies squeezing force to the gas collecting hose 22. The squeezing block 41 can squeeze out the remaining gas in the gas collecting hose 22, so that the gas in the gas collecting hose 22 is discharged more thoroughly. When the extrusion block 41 moves on the gas collecting hose 22, the gas collecting hose 22 can be attached to the inner wall of the receiving groove 23, which makes it difficult for the gas collecting hose 22 to leak out of the receiving groove 23. It not only protects the gas collecting hose 22 and prevents the gas collecting hose 22 from being exposed and punctured, but also avoids the gas collecting hose 22 from sticking to the skin, which makes it difficult for sweat on the skin to evaporate.

[0024] After the gas collecting hose 22 is inserted into the receiving groove 23, the air pressure regulating assembly 3 continues to inhale the gas collecting hose 22. The dual cooperation of the air pressure regulating assembly 3 and the extrusion block 41 can not only improve the exhaust efficiency of the gas collecting hose 22, but also make the gas in the gas collecting hose 22 be discharged more thoroughly, thereby improving the accuracy of blood pressure measurement. When a single air pressure regulating assembly 3 is used to exhaust the gas collecting hose 22, a negative pressure is formed inside the gas collecting hose 22, and the wall of the gas collecting hose 22 contracts inward under the action of the external atmospheric pressure. Due to the uneven air pressure in different parts of the gas collecting hose 22, the gas collecting hose 22 is prone to wrinkles when it contracts. During the movement of the extrusion block 41, the wrinkles on the surface of the gas collecting hose 22 are smoothed and the air pressure inside the gas collecting hose 22 is kept consistent. When the gas collecting hose 22 is inhaled, the possibility of local folding or twisting of the gas collecting hose 22 is reduced, which not only facilitates the storage of the gas collecting hose 22, but also reduces the possibility of scratches on the skin caused by wrinkles in the gas collecting hose 22.

[0025] Reference Figure 5 and Figure 6 The air pressure regulating assembly 3 includes a slide cylinder 31 fixed to the inside of the dial 1, a piston 32 and a driving member group 33 for driving the piston 32 to move in the slide cylinder 31, a connecting pipe 34 is provided at one end of the slide cylinder 31, and the connecting pipe 34 can be communicated with the air guide pipe 21, and the outer wall of the slide cylinder 31 is fixedly connected to a support seat 35, and the driving member group 33 includes a driving gear 331 and a driving gear 332 rotatably arranged on the support seat 35, the driving gear 331 is meshed with the driving gear 332, and a driving source 333 is provided on the support seat 35, and the driving gear 331 is fixed to the output end of the driving source 333, and a driving disk is fixedly connected to one side of the driving gear 332, and a connecting rod 334 is rotatably connected to the side of the driving disk away from the driving gear 332, and the other end of the connecting rod 334 is inserted into the slide cylinder 31 and hinged to the piston 32.

[0026] When the driving source 333 is started, the driving gear 331 drives the active gear 332 to rotate. When the active gear 332 rotates, it drives the driving disk to perform circular motion. One end of the connecting rod 334 follows the rotating disk to perform circular motion. The other end of the connecting rod 334 drives the piston 32 to perform vertical reciprocating motion in the slide cylinder 31. When the piston 32 moves up in the slide cylinder 31, external gas is sucked into the slide cylinder 31. When the piston 32 moves down in the slide cylinder 31, the air in the slide cylinder 31 can be transported from the connecting pipe 34 to the air guide pipe 21, and the gas collecting hose 22 is inflated.

[0027] Reference Figure 5An air flow switching component 5 is provided in the dial 1. The air flow switching component 5 includes an air flow groove 51 opened in the dial 1. The bottom wall of the air flow groove 51 is provided with an inflation port 52 and an air release port 53. The two ends of the air guide tube 21 are respectively connected with the inflation port 52 and the air release port 53. The two side walls of the air flow groove 51 are provided with an air inlet 54 and an air outlet 55 that pass through the dial 1. The air inlet 54 and the air outlet 55 are both provided with a one-way valve 56, wherein the one-way valve 56 of the air inlet 54 can allow external air to enter the air flow groove 51, and the one-way valve 56 of the air outlet 55 can allow the gas in the air flow groove 51 to flow out to the outside. A gap is provided on one side wall of the air flow groove 51 for inserting the connecting pipe 34.

[0028] Reference Figure 4 and Figure 5 An airflow plate 57 is slidably disposed within the airflow groove 51. A first airflow channel 571 and a second airflow channel 572 are defined within the airflow plate 57. One end of the first airflow channel 571 passes through one side of the airflow plate 57 and communicates with the air inlet 54. One end of the second airflow channel 572 passes through the other side of the airflow plate 57 and communicates with the air outlet 55. When the airflow plate 57 moves within the airflow groove 51 toward the air outlet 55, the first airflow channel 571 can simultaneously communicate with the inflation port 52 and the connecting pipe 34. When the airflow plate 57 moves toward the air inlet 54, the second airflow channel 572 can simultaneously communicate with the deflation port 53 and the connecting pipe 34.

[0029] Reference Figure 4 A stopper assembly 6 for securing the airflow plate 57 is disposed within the airflow slot 51. The stopper assembly 6 includes a threaded screw 61 that rotates within the airflow slot 51. A motor 62 is fixedly connected to the sidewall of the airflow slot 51, driving the threaded screw 61. The threaded screw 61 extends through the airflow plate 57 and is threadedly connected to the airflow plate 57. When the motor 62 drives the threaded screw 61 to rotate, the airflow plate 57 reciprocates within the airflow slot 51 according to the direction of the threaded screw 61's rotation. When the airflow plate 57 abuts the wall of the airflow slot 51 where the air inlet 54 is located, the first airflow channel 571 communicates with both the inflation port 52 and the connecting pipe 34. When the motor 62 rotates in the opposite direction, driving the airflow plate 57 to abut the wall of the airflow slot 51 where the air outlet 55 is located, the second airflow channel 572 communicates with the air release port 53 and the connecting pipe 34.

[0030] Reference Figures 2 to 5Two symmetrically arranged fixing seats 7 are fixedly connected to the bottom of the dial 1, one of which is provided with a first air guide hole 71, which is connected to the inflation port 52, and the other fixing seat 7 is provided with a second air guide hole 72, which is connected to the deflation port 53. One-way valves 56 with opposite air intake directions are provided in the first air guide hole 71 and the second air guide hole 72. One end of the air guide tube 21 is inserted into the first air guide hole 71, and the other end of the air guide tube 21 is inserted into the second air guide tube 21. The one-way valve 56 in the first air guide hole 71 can allow air to enter the air guide tube 21 from the inflation port 52, and the one-way valve 56 in the second air guide hole 72 can discharge the gas in the air guide tube 21 from the deflation port 53.

[0031] Reference Figure 2 A card slot 73 communicating with the receiving groove 23 is provided on the outer wall of the fixing seat 7. The sliding ring 4 is sleeved on the fixing seat 7, and the extrusion block 41 is inserted into the card slot 73. When in use, the sliding ring 4 is moved to the strap 2, and the extrusion block 41 enters the receiving groove 23 to squeeze the gas collecting hose 22.

[0032] When the airflow plate 57 moves toward the air outlet 55 and the first airflow channel 571 is connected to both the air inlet 52 and the connecting pipe 34, as the piston 32 moves upward within the slide 31, external airflow enters the first airflow channel 571 from the air inlet 54 and is input into the slide 31. When the piston 32 moves downward, airflow moves from the slide 31 toward the air inlet 52 and enters the air collection hose 22 through the first air guide hole 71, thereby inflating the air collection hose 22. When the air collection hose 22 is full of gas, the piston is resisted by the high air pressure within the air collection hose 22 and stops moving. The provision of the one-way valve 56 ensures that the gas within the air collection hose 22 will not be discharged through the first air guide hole 71 when the piston 32 moves upward.

[0033] When the air collecting hose 22 needs to be deflated, the air flow plate 57 is moved toward the air inlet 54 until the second air flow channel 572 is connected to both the air bleed port 53 and the connecting pipe 34. The gas in the air collecting hose 22 is gradually discharged from the air bleed port. When the driving source 333 drives the piston 32 upward in the slide 31, air flows from the air collecting hose 22 through the second air guide hole 72 into the second air flow channel 572 and then into the slide 31, thereby discharging the gas in the air collecting hose 22. When the piston 32 moves downward in the slide 31, the air in the slide 31 is discharged from the air outlet 55 through the second air flow channel 572. When all the gas in the air collecting hose 22 is discharged, due to the pressure difference between the second air flow channel 572 and the external gas, the piston 32 stops moving due to the pressure. At this time, the interior of the air collecting hose 22 is in a vacuum state, indicating that the gas in the air collecting hose 22 has been completely discharged, which can improve the accuracy of air pressure monitoring.

[0034] When the gas collecting hose 22 is squeezed by the squeezing block 41, the pressure of the squeezing block 41 will be evenly transmitted to the surface of the gas collecting hose 22, forcing the gas collecting hose 22 to shrink along the pressure direction. At the same time, the un-squeezed area will extend toward the gap on the inner wall of the receiving groove 23, so that the gas collecting hose 22 can be fixed on the inner wall of the receiving groove 23, reducing the contact between the gas collecting hose 22 and the skin and improving skin comfort.

[0035] At the same time, the squeezing block 41 can smooth the gas collecting hose 22 during the movement, reducing the occurrence of wrinkles on the gas collecting hose 22, which can not only reduce the possibility of wrinkles causing damage to the skin, but also reduce the risk of the gas collecting hose 22 being easily broken at the wrinkles.

[0036] The implementation principle of a wearable blood pressure detection device in an embodiment of the present application is as follows: when measuring blood pressure, the air collecting hose 22 is taken out of the receiving groove 23, the air flow plate 57 is slid, so that the first air flow channel 571 is connected to the inflation port 52 and the connecting pipe 34 at the same time, the driving source 333 drives the piston 32 to slide in the slide cylinder 31, when the piston 32 moves up in the slide cylinder 31, the air flow enters the slide cylinder 31 from the air inlet 54, and when the piston 32 moves down in the slide cylinder 31, the air flow enters the air collecting hose 22 from the slide cylinder 31 toward the first air guide hole 71. , and then inflate the air collecting hose 22. When the air pressure in the air collecting hose 22 reaches the standard value, start to deflate the air collecting hose 22, slide the air flow plate 57, so that the second air flow channel 572 is connected to the air release port 53 and the connecting pipe 34 at the same time. When the driving source 333 drives the piston 32 to move upward in the slide cylinder 31, the air flow in the air collecting hose 22 flows toward the slide cylinder 31 through the second air guide hole 72. When the piston 32 moves downward in the slide cylinder 31, the air flow in the slide cylinder 31 is discharged from the air outlet 55 through the second air flow channel 572.

[0037] During the deflation process, the pressure within the gas collecting hose 22 gradually decreases. When the pressure drops to or slightly below the systolic pressure, blood begins to flow through the compressed blood vessels, forming vortices and generating oscillation waves. The pressure sensor detects the systolic pressure based on the pressure changes within the gas collecting hose 22. When the pressure in the gas collecting hose 22 continues to drop to or slightly below the diastolic pressure, the blood vessels are fully unobstructed and blood flow is no longer obstructed. The oscillation waves also change accordingly, and the diastolic pressure can be determined.

[0038] After the blood pressure test is completed, continue to deflate the gas collecting hose 22 until the gas collecting hose 22 becomes flat, then insert the gas collecting hose 22 into the receiving groove 23, and move the sliding ring 4 so that the extrusion block 41 enters the receiving groove 23 and covers the gas collecting hose 22. When the sliding ring 4 moves on the strap 2, the extrusion block 41 applies an extrusion force to the gas collecting hose 22. The extrusion block 41 can squeeze out the remaining gas in the gas collecting hose 22, so that the gas in the gas collecting hose 22 is discharged more thoroughly.

[0039] While the extrusion block 41 is squeezing, the air pressure regulating assembly 3 sucks air into the gas collecting hose 22 until the inside of the gas collecting hose 22 is at negative pressure and deformed. The two side surfaces of the gas collecting hose 22 fit tightly together, further reducing the possibility of residual gas inside the gas collecting hose 22 and improving the accuracy of the next blood pressure measurement.

[0040] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A wearable blood pressure detection device, characterized in that: include A wearing body, the wearing body comprising a dial (1) and a watch band (2), wherein a receiving groove (23) is provided on the inner side of the watch band (2); An air collecting hose (22) and an air guide tube (21), wherein the air guide tube (21) is installed in the watch band (2) and is connected to the watch dial (1) at both ends. The air collecting hose (22) is arranged on both sides of the watch band (2) and fits the arm. The air guide tube (21) is connected to the air collecting hose (22). After the air is released, the air collecting hose (22) can be placed in the receiving groove (23); An air pressure regulating assembly (3) is disposed in the dial (1) and is in communication with the air guide pipe (21), and is used to inflate and deflate the air collecting hose (22) to regulate the air pressure in the air collecting hose (22); An air pressure detection assembly, comprising a pressure sensor disposed in the air guide tube (21) and used for monitoring the air pressure in the air collecting hose (22); A sliding ring (4) is sleeved on the watchband (2), and the sliding ring (4) is connected to an extrusion block (41) that is slidably arranged in the receiving groove (23), and the extrusion block (41) is used to discharge gas in the gas collecting hose (22).

2. A wearable blood pressure detection device according to claim 1, characterized in that: When the air pressure regulating assembly (3) exhausts the air guide pipe (21), the extrusion block (41) slides in the receiving groove (23) to compact and flatten the air collecting hose (22).

3. A wearable blood pressure detection device according to claim 2, characterized in that: The air pressure regulating assembly (3) comprises a slide cylinder (31), a piston (32) and a driving component group (33). The driving component group (33) is used to drive the piston (32) to move back and forth in the slide cylinder (31) to realize the filling and deflation of the gas collecting hose (22). The slide cylinder (31) is connected to a connecting pipe (34), and the connecting pipe (34) is connected to the air guide pipe (21).

4. A wearable blood pressure detection device according to claim 3, characterized in that: The bottom of the dial (1) is fixedly connected to two oppositely arranged fixing seats (7), and a first air guide hole (71) and a second air guide hole (72) are respectively provided in the two fixing seats (7). One end of the air guide tube (21) is inserted into the first air guide hole (71), and the other end of the air guide tube (21) is inserted into the second air guide hole (72). One-way valves (56) with opposite air intake directions are provided in the first air guide hole (71) and the second air guide hole (72). The connecting pipe (34) can be alternately connected with the first air guide hole (71) and the second air guide hole (72).

5. The wearable blood pressure detection device according to claim 4, characterized in that: An airflow switching assembly (5) is provided in the dial (1), and the airflow switching assembly (5) includes an airflow groove (51) provided in the dial (1), an airflow plate (57) slidably provided in the airflow groove (51), and a first airflow channel (571) and a second airflow channel (572) are provided in the airflow plate (57), the first airflow channel (571) can be connected to the first air guide hole (71) and the connecting pipe (34) at the same time, and the second airflow channel (572) can be connected to the second air guide hole (72) and the connecting pipe (34) at the same time; When the airflow plate (57) moves in the airflow groove (51), the connecting pipe (34) can switch between the first airflow channel (571) and the second airflow channel (572).

6. The wearable blood pressure detection device according to claim 2, characterized in that: An air inlet (54) and an air outlet (55) are provided on the dial (1). One-way valves (56) with opposite air intake directions are provided in the air inlet (54) and the air outlet (55). The air inlet (54) is communicated with the first air flow channel (571), and the air outlet (55) is communicated with the second air flow channel (572).

7. The wearable blood pressure detection device according to claim 6, characterized in that: The driving component group (33) includes a driving source (333), a driving gear (331), a driving gear (332), a rotating disk and a connecting rod (334). The outer wall of the slide cylinder (31) is connected to a support base (35). The driving source (333) is fixed on the support base (35). The driving gear (331) is fixed to the output end of the driving source (333). The driving gear (331) is meshed with the driving gear (332). The rotating disk is fixed to one side of the driving gear (332). One end of the connecting rod (334) is hinged to the piston (32), and the other end of the connecting rod (334) is hinged to the rotating disk.

8. The wearable blood pressure detection device according to claim 5, characterized in that: A limiting component (6) is provided in the air flow groove (51), and the limiting component (6) is used to When the first air flow channel (571) is in communication with the first air guide hole (71) and the connecting pipe (34), or when the second air flow channel (572) is in communication with the second air guide hole (72) and the connecting pipe (34), the air flow plate (57) is limited.

9. The wearable blood pressure detection device according to claim 5, characterized in that: The limiting assembly (6) includes a threaded screw (61) rotatably arranged in the air flow groove (51), the threaded screw (61) is threadedly connected to the air flow plate (57) and passes through the air flow plate (57), and a motor (62) is fixed in the air flow groove (51) to drive the threaded screw (61) to rotate.

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