Wearable blood pressure monitoring equipment

By using an integrated deformable elastic wristband and airbag structure, combined with positioning components and an air injection mechanism, the problem of cumbersome connection in existing blood pressure monitoring devices is solved, achieving automatic adjustment and efficient blood pressure monitoring, thus improving accuracy and efficiency.

CN120918607APending Publication Date: 2025-11-11THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV
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Patent Information

Application Number
CN202511393457.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-28
Publication Date
2025-11-11

AI Technical Summary

Technical Problem

Existing blood pressure monitoring devices use a Velcro-style connection method that requires repeated attaching, resulting in long measurement preparation time, low efficiency, and disturbance to patients.

Method used

The device employs a one-piece molded deformable elastic wristband and airbag structure, combined with positioning components and an air injection mechanism, to achieve automatic adjustment of the wristband and automatic inflation of the airbag, reducing operation steps and improving the positional stability of the detection plate.

Benefits of technology

It improved the accuracy and efficiency of blood pressure monitoring, reduced patient disturbance, simplified the procedures for medical staff, and stabilized the patient's emotional state.

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Abstract

The invention relates to the technical field of medical monitoring, in particular to wearable blood pressure monitoring equipment, and aims to solve the problem of low blood pressure monitoring efficiency due to repeated operation of the equipment in the blood pressure monitoring process of a patient in the prior art. Comprising a wrist strap, the wrist strap is made of a deformable elastic material, the wrist strap is integrally formed, and an intelligent data module is installed on the wrist strap; the air bag is fixedly connected to the inner side of the wrist strap, a detection piece is installed on the inner side of the air bag, and the detection piece is electrically connected with the intelligent data module and used for recording blood pressure data of a patient; and the air injection mechanisms are arranged in a mirror image manner, are arranged on the wrist strap and are used for expanding the air bag. The integrally-formed wrist strap is worn on the wrist of the patient, so that the tedious problem that repeated adhesion is needed in a traditional magic tape type connection mode is solved, the operation steps of medical staff are reduced, and meanwhile, disturbance to the patient is reduced.
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Description

Technical Field

[0001] This invention relates to the field of medical monitoring technology, and more particularly to a wearable blood pressure monitoring device. Background Technology

[0002] A blood pressure monitoring device is a medical device that can continuously record changes in a patient's blood pressure for 24 hours. It is frequently used in the medical field to diagnose hypertension, evaluate the efficacy of antihypertensive drugs, or monitor blood pressure fluctuation patterns. Its core advantage lies in providing 24-hour blood pressure data and capturing abnormalities such as masked hypertension, nocturnal hypertension, or isolated clinical hypertension.

[0003] Existing blood pressure monitoring devices typically use a Velcro connection to attach the cuff (wristband) to the patient. When measuring blood pressure, the cuff (wristband) needs to be tightened, and when not measuring, it needs to be loosened for the patient's comfort. The existing Velcro connection method requires repeated operation by medical staff, resulting in long preparation time, low measurement efficiency, and the problem of disturbing the patient during the operation. Summary of the Invention

[0004] To overcome the shortcomings of existing "Velcro" connection methods, which require repeated adhesion and are inefficient when measuring blood pressure in patients, this invention provides a wearable blood pressure monitoring device.

[0005] The technical solution is: a wearable blood pressure monitoring device, comprising: The wristband is made of a deformable elastic material, the wristband adopts a one-piece molding design, and the wristband is equipped with a smart data module; An airbag is fixedly connected to the inside of the wristband. A detection plate is installed on the inside of the airbag. The detection plate is electrically connected to the smart data module and is used to record the patient's blood pressure data. The air injection mechanism is arranged in a mirror image and is located on the wristband to inflate the airbag.

[0006] To further explain, the wristband and the airbag are elliptical cylindrical shells designed to fit the patient's wrist.

[0007] To further explain, the wristband is fixedly connected to positioning members arranged at intervals. The positioning members are generally arc-shaped, and the degree of curvature of the positioning members is the same as the degree of curvature of the adjacent areas on the wristband.

[0008] To further explain, the gas injection mechanism includes: A fastener is fixedly connected to the wristband, and a cavity is provided inside the fastener; A connecting tube is fixedly connected between the airbag and the fixing member. The connecting tube passes through the wristband and is equipped with a deflation valve that communicates with it. The airbag and the cavity are both connected to the connecting tube. The fixing member is fixedly connected to a second air tube, which is connected to an external air injection device and communicates with the cavity.

[0009] To further explain, the positioning element is made of a deformable elastic material, and the middle part of the positioning element is recessed into the wristband to facilitate deformation.

[0010] To further explain, the elastic coefficient of the middle part of the positioning member is greater than that of its end, which is used to stabilize its deformation.

[0011] Further explanation: the fixing member is fixedly connected to a first air tube, which is connected to an external air injection device. Two opposing sliding members are slidably connected within the cavity, dividing the cavity into three regions. The second air tube communicates with the central region of the cavity, and the first air tube communicates with the other two regions. The opposing sliding members are respectively provided with annularly arranged protrusions and annularly arranged grooves. The number of protrusions is the same as the number of grooves. The protrusions slide in a sealed manner within adjacent grooves to seal the connection between the second air tube and the cavity. A mirror-arranged connecting rope is fixedly connected between the positioning member and the adjacent sliding member.

[0012] To further explain, the connecting rope passes through the adjacent fixing member, the portion of the connecting rope outside the fixing member is located inside the wristband, and the connecting rope is in contact with the wristband and the adjacent fixing member.

[0013] To further explain, the fixed connection position of the connecting rope on the positioning member is located at the end of the positioning member, which facilitates the deformation of the positioning member.

[0014] To further explain, there is pressure in the two regions other than the central region within the cavity, and this pressure is used to deform the positioning element.

[0015] Compared with existing technologies, the present invention has at least the following beneficial effects: By wearing a one-piece molded wristband on the patient's wrist, the present invention reduces the cumbersome problem of repeated adhesion required by traditional "Hook and Loop" connection methods, reduces the operation steps of medical staff, and also reduces disturbance to the patient; the positioning component supports the wristband, keeping it in a loose state, thus reducing the impact on the patient's limbs, helping to stabilize the patient's emotional state, and thus improving the accuracy of blood pressure monitoring data; the positioning component deflects using the patient's wrist as a support point during the recovery process, thus placing the detection strip at the radial artery on the patient's wrist, thereby automatically correcting the detection strip that has shifted due to the patient's accidental movement, ensuring normal blood pressure monitoring, and thus improving the accuracy of blood pressure monitoring data; the protrusion and adjacent groove cooperate with each other, so that the patient's blood pressure is automatically measured after the detection strip position is adjusted, thus reducing the operation steps of medical staff and improving the efficiency and monitoring effect of blood pressure measurement. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the entire invention; Figure 2 This is a three-dimensional structural diagram of the fixing component, the first air tube, and the second air tube of the present invention; Figure 3 This is a three-dimensional structural cross-sectional view of the wristband and airbag of the present invention; Figure 4 This is a three-dimensional structural cross-sectional view of the wristband and fastener of the present invention; Figure 5 This is a three-dimensional structural cross-sectional view of the fixing component, the first air tube, and the second air tube of the present invention. Figure 6 This is a three-dimensional structural cross-sectional view of the fastener of the present invention; Figure 7 This is an exploded three-dimensional view of the fastener and its components according to the present invention.

[0017] In the above attached figures: 1: Wristband, 2: Smart data module, 3: Airbag, 4: Detection piece, 5: Positioning component, 6: Fixing component, 601: Cavity, 602: Connecting tube, 7: First air tube, 8: Second air tube, 9: Sliding component, 901: Protrusion, 902: Groove, 10: Connecting rope. Detailed Implementation

[0018] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0019] Example 1: This example proposes a wearable blood pressure monitoring device for monitoring a patient's blood pressure.

[0020] like Figures 1-3 and Figure 6 As shown, it includes: a wristband 1, made of elastic rubber, with a one-piece injection molded design; a smart data module 2 installed on the wristband 1, which has a display screen and operation buttons for medical staff to observe and operate the patient's blood pressure data; the smart data module 2 is electrically connected to external medical equipment for recording and analyzing the patient's blood pressure data; and an airbag 3, fixedly connected to the inside of the wristband 1. Both the wristband 1 and the airbag 3 are elliptical cylindrical shells designed to fit the patient's wrist. A detection plate 4 is installed on the upper part of the inner side of the airbag 3 for detection... The sensor 4 is used to monitor the patient's blood pressure. This is existing technology, and its detailed working principle will not be elaborated here. The sensor 4 is connected to the intelligent data module 2. The sensor 4 uploads the monitored blood pressure data of the patient to the intelligent data module 2. The wristband 1 is fixedly connected with four positioning elements 5 arranged at intervals. The two adjacent positioning elements 5 are arranged in a mirror image. The positioning elements 5 are arc-shaped as a whole, and the curvature of the positioning elements 5 is the same as the curvature of the adjacent area on the wristband 1. The air injection mechanism is arranged in a mirror image and is set on the wristband 1 to inflate the airbag 3.

[0021] like Figure 4 and Figure 5 As shown, the air injection mechanism includes: a fixing member 6, which is fixedly connected to the wristband 1, and a cavity 601 is provided inside the fixing member 6; a connecting pipe 602, which is fixedly connected between the airbag 3 and the fixing member 6, and passes through the wristband 1. A vent valve is installed on the connecting pipe 602 and communicates with it. The vent valve communicates with the external environment. The connecting pipe 602 is fixedly connected to the wristband 1. The airbag 3 and the cavity 601 are both connected to the connecting pipe 602. A second air pipe 8 is fixedly connected to the fixing member 6. The second air pipe 8 is connected to an external air injection device. The external air injection device is used to change the pressure environment inside the cavity 601. This is existing technology, and its detailed working principle will not be described in detail here. The second air pipe 8 communicates with the cavity 601.

[0022] Working principle: When using this invention, the wristband 1 is worn on the patient's wrist. At this time, the wristband 1 is in a loose state. When the patient's blood pressure is not being monitored, the positioning member 5 is in an open state, thereby maintaining the loose state of the wristband 1. This reduces the impact of the wristband 1 on the patient's limbs, helps stabilize the patient's emotional state, and thus improves the accuracy of blood pressure monitoring data. At the same time, the one-piece molded wristband 1 is always worn on the patient's wrist during the monitoring process, avoiding the cumbersome problem of repeated adhesion required by the traditional "Velcro" connection method.

[0023] When blood pressure needs to be measured, medical staff inject air into the second trachea 8 using an external inflator. The air then enters the cavity 601 and subsequently flows through the connecting tube 602 into the bladder 3. The bladder 3 inflates, compressing and fixing the patient's wrist and compressing the blood vessels. The measuring device 4 gradually presses against the patient's wrist until the blood vessels are completely compressed and blood flow is blocked. Inflation into the second trachea 8 then stops. The medical staff then open the vent valve on the connecting tube 602, allowing the air in the bladder 3 to pass through the connecting tube 602 and its vent valve into the external environment. The bladder 3 gradually resets (gradually releasing pressure on the patient's wrist). During the resetting process of the bladder 3, the measuring device 4 measures the patient's diastolic and systolic blood pressure. After measurement, the medical staff closes the vent valve on the connecting tube 602 and the solenoid valve in the first trachea 7. To measure blood pressure again, the above steps are repeated. Multiple operations are performed to monitor the patient's blood pressure.

[0024] Example 2: This example proposes a wearable blood pressure monitoring device that, based on Example 1, has the function of automatically adjusting the position of the detection strip.

[0025] like Figures 4-7As shown, a first air pipe 7 is fixedly connected to a fixing member 6. The first air pipe 7 is connected to an external air injection device. Two opposing sliding members 9 are slidably connected inside the cavity 601, dividing the cavity 601 into three regions: left, middle, and right. The second air pipe 8 communicates with the middle region of the cavity 601, and the first air pipe 7 communicates with the other two regions of the cavity 601. The two sliding members 9 divide the cavity 601 into three regions: left, middle, and right. The connecting pipe 602 and the second air pipe 8 are both connected to the middle region of the cavity 601. The first air pipe 7 is installed in the region connected to the cavity 601. Equipped with a solenoid valve located inside the first air pipe 7, which communicates with the left and right portions of the cavity 601, two opposing sliding members 9 are respectively provided with annular arrays of protrusions 901 and grooves 902 on their opposite sides. The number of protrusions 901 is the same as the number of grooves 902. The protrusions 901 slide in a sealing manner within adjacent grooves 902, used to seal the connection between the second air pipe 8 and the cavity 601. The positioning member 5 is made of a deformable elastic metal material (spring steel can be selected), and the middle part of the positioning member 5 is recessed into the wristband 1 to facilitate deformation. The elastic modulus of the middle part of the positioning member 5 is greater than that of its ends, which is used to stabilize its deformation and at the same time makes the two ends of the positioning member 5 easier to deform. When the positioning member 5 is not in operation, it is in a deformed state, that is, the two ends of the positioning member 5 are open outward. In this state, when the present invention is worn on the patient's wrist, the positioning member 5 does not compress the patient's wrist. There is pressure in the two areas other than the middle area in the cavity 601. This pressure is used to deform the positioning member 5. The two sliding members 9 in the same cavity 601 are each provided with magnets facing each other, and the magnets on the two adjacent sliding members 9 attract each other. The magnet is used to reset the slider 9. The positioning member 5 and the adjacent slider 9 are fixedly connected by two connecting ropes 10 arranged in a vertical mirror image. The connecting rope 10 passes through the adjacent fixing member 6. The part of the connecting rope 10 outside the fixing member 6 is located inside the wristband 1 and contacts the wristband 1. The connecting rope 10 contacts the adjacent fixing member 6. The wristband 1 and the fixing member 6 are both used to support and guide the connecting rope 10. The fixed connection position of the connecting rope 10 on the positioning member 5 is located at the end of the positioning member 5, which is used to increase the torque applied to the connecting rope 10 and facilitate the deformation of the positioning member 5.

[0026] Working principle: After the wristband 1 is put on the patient's wrist, the patient's blood pressure is to be measured. At this time, there is pressure in the first trachea 7 (there is pressure in the left and right areas of the cavity 601), which squeezes the sliding member 9 (keeping the connecting rope 10 in a state of pulling on the positioning member 5), so that the protrusion 901 and the adjacent groove 902 are in a sealed contact state.

[0027] When a patient's blood pressure needs to be measured, medical staff open the solenoid valve in the first trachea 7. The left and right areas of the cavity 601 begin to depressurize (i.e., release air). The air enters the external air injection device through the first trachea 7. During this process, the air gradually loses its compression on the sliding member 9, and the positioning member 5 begins to deform under its own elastic force (its two ends begin to move towards the middle and gradually converge). The positioning member 5 pulls the sliding member 9 through the adjacent connecting rope 10, and the two sliding members 9 in the same cavity 601 begin to move in opposite directions. The positioning member 5 causes the wristband 1 to deform together. Since the original shape of the positioning member 5 is arc-shaped, if the wristband 1 and its parts accidentally deflect at the patient's wrist during the process of the positioning member 5 restoring its shape, the positioning member 5 will deflect using the patient's wrist as a support point. The positioning member 5 causes the wristband 1 and its parts to deflect together, so that the detection strip 4 is located at the radial artery on the patient's wrist. This automatically corrects the detection strip that has shifted due to the patient's accidental movement, ensuring normal monitoring of the patient's blood pressure and improving the accuracy of the patient's blood pressure monitoring data.

[0028] During the depressurization process in the left and right regions of cavity 601 (during the movement of two adjacent sliding parts 9 in opposite directions), medical personnel inject air into the second trachea 8 through an external air injection device. At this time, because the protrusion 901 is in "close contact" with the adjacent groove 902, that is, the two adjacent sliding parts 9 work together to block the adjacent second trachea 8, preventing air from entering the central region of cavity 601. As the two adjacent sliding parts 9 move in opposite directions, the protrusion 901 gradually slides away from the adjacent groove 902. When the protrusion 901 and the adjacent groove 902 slide relative to each other until the blockage of the adjacent second trachea 8 is lost, air from the second trachea 8 enters the central region of cavity 601. This achieves automatic blood pressure monitoring of the patient after fixation, reducing the number of operation steps for medical personnel and improving the efficiency of blood pressure monitoring. The air then enters the airbag 3 through the connecting tube 602, and the airbag 3 begins to inflate, squeezing and fixing the patient's wrist and compressing the patient's blood vessels. After the airbag 3 inflates to the point where it can fix the detection piece 4 in the relative position between the patient's wrist, the medical staff injects air into the first trachea 7 through an external air injection device. The air enters the area on the left and right sides of the cavity 601 and squeezes the sliding parts 9. The two sliding parts 9 begin to move in opposite directions (the protrusion 901 gradually slides into the adjacent groove 902). The sliding parts 9 pull the end of the adjacent positioning part 5 through the connecting rope 10, thus causing the positioning part 5 to deform again and gradually lose its grip on the patient's wrist until the positioning part 5 is deformed to a non-working state and then the injection of air into the first trachea 7 stops. At this time, the airbag 3 completely blocks the patient's blood flow. Then the airbag 3 is deflated and the patient's blood pressure is measured.

[0029] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be modified within the scope of the inventive concept described herein by means of the foregoing teachings or the technology or knowledge in related fields.

Claims

1. A wearable blood pressure monitoring device, characterized in that it comprises: Wristband (1), the wristband (1) is made of deformable elastic material, the wristband (1) adopts an integrated molding design, and the wristband (1) is equipped with a smart data module (2). An airbag (3) is fixedly connected to the inside of the wristband (1). A detection piece (4) is installed on the inside of the airbag (3). The detection piece (4) is electrically connected to the smart data module (2) and is used to record the patient's blood pressure data. The air injection mechanism is arranged in a mirror image and is located on the wristband (1) to inflate the airbag (3).

2. A wearable blood pressure monitoring device according to claim 1, characterized in that, The wristband (1) and the airbag (3) are elliptical cylindrical shells designed to fit the patient's wrist.

3. A wearable blood pressure monitoring device according to claim 1, characterized in that, The wristband (1) is fixedly connected with spaced positioning members (5). The positioning members (5) are generally arc-shaped, and the degree of curvature of the positioning members (5) is the same as the degree of curvature of the adjacent areas on the wristband (1).

4. A wearable blood pressure monitoring device according to claim 3, characterized in that, The gas injection mechanism includes: A fastener (6) is fixedly connected to the wristband (1), and a cavity (601) is provided inside the fastener (6). A connecting tube (602) is fixedly connected between the airbag (3) and the fixing member (6). The connecting tube (602) passes through the wristband (1). A deflation valve connected to the connecting tube (602) is installed on the connecting tube (602). The airbag (3) and the cavity (601) are both connected to the connecting tube (602). A second air tube (8) is fixedly connected to the fixing member (6). The second air tube (8) is connected to an external air injection device. The second air tube (8) is connected to the cavity (601).

5. A wearable blood pressure monitoring device according to claim 4, characterized in that, The positioning element (5) is made of a deformable elastic material, and the middle part of the positioning element (5) is recessed into the wristband (1) to facilitate deformation.

6. A wearable blood pressure monitoring device according to claim 5, characterized in that, The elastic coefficient of the middle part of the positioning element (5) is greater than that of its end part, which is used to stabilize its deformation.

7. A wearable blood pressure monitoring device according to claim 5, characterized in that, The fixing member (6) is fixedly connected to the first air pipe (7), which is connected to an external air injection device. Two opposing sliding members (9) are sealed and slidably connected inside the cavity (601). The two sliding members (9) divide the cavity (601) into three regions. The second air pipe (8) is connected to the middle region of the cavity (601), and the first air pipe (7) is connected to the other two regions of the cavity (601). The opposing sliding members (9) are respectively provided with annular array protrusions (901) and annular array grooves (902). The number of protrusions (901) is the same as the number of grooves (902). The protrusions (901) are sealed and slid within the adjacent grooves (902) to seal the connection between the second air pipe (8) and the cavity (601). The positioning member (5) is fixedly connected to the adjacent sliding member (9) with a mirror-arranged connecting rope (10).

8. A wearable blood pressure monitoring device according to claim 7, characterized in that, The connecting rope (10) passes through the adjacent fixing member (6), the portion of the connecting rope (10) outside the fixing member (6) is inside the wristband (1), and the connecting rope (10) contacts the wristband (1) and the connecting rope (10) contacts the adjacent fixing member (6).

9. A wearable blood pressure monitoring device according to claim 8, characterized in that, The fixed connection position of the connecting rope (10) on the positioning member (5) is located at the end of the positioning member (5), which facilitates the deformation of the positioning member (5).

10. A wearable blood pressure monitoring device according to claim 9, characterized in that, The cavity (601) has pressure in the two regions other than the central region, which is used to deform the positioning element (5).