Electronic sphygmomanometer with cuff wearing state detection function

Abstract

The utility model discloses an electronic sphygmomanometer with cuff wearing state detection function belongs to electronic medical instrument technical field, and the sphygmomanometer aims at solving the problem of inaccurate measurement result caused by improper wearing position or unsuitable tightness of user's cuff in prior art. The utility model discloses a sphygmomanometer main part, cuff, the position sensor for detecting wearing position set on the cuff, the tightness sensor for detecting wearing tightness, the microcontroller for analyzing signal and judging wearing state with sensor connection, and the prompt unit for sending prompt information when wearing improperly with microcontroller connection. The utility model discloses through real -time detection the position and tightness of wearing cuff, and timely provides adjustment guidance to the user, can effectively improve the accuracy and reliability of blood pressure measurement, and promotes user experience.

Description

Technical Field

[0001] This utility model relates to the field of electronic medical device technology, and in particular to an electronic blood pressure monitor that can detect and indicate the cuff wearing status. Background Technology

[0002] Electronic blood pressure monitors are widely used health monitoring devices in homes and healthcare facilities. Their accuracy largely depends on whether the user wears the cuff correctly. Correct wearing requires the cuff to wrap properly around the upper arm, typically covering the brachial artery, and with a moderate tightness.

[0003] However, most existing electronic blood pressure monitors focus primarily on measurement algorithms and displays, failing to provide effective guidance and verification for the cuff-wearing process. Ordinary users, especially the elderly or first-time users, often lack professional knowledge or operate carelessly, resulting in the cuff being worn too high, too low, off-center from the brachial artery, or wrapped too loosely or too tightly. These improper wearing situations directly affect the arterial compression effect and signal acquisition, leading to significant errors in blood pressure measurement results, potentially impacting health assessments or even delaying treatment.

[0004] Therefore, how to help users ensure that the cuff is worn correctly in order to improve the measurement accuracy of electronic blood pressure monitors is a problem that urgently needs to be solved in the current technology field. Utility Model Content

[0005] This invention aims to overcome the shortcomings of the prior art and provide an electronic blood pressure monitor with a cuff wearing status detection function to solve the problem of blood pressure measurement error caused by incorrect cuff wearing position or unsuitable tightness, thereby improving measurement accuracy and user experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An electronic blood pressure monitor with cuff wearing status detection function includes a blood pressure monitor body and a cuff connected to the blood pressure monitor body, characterized in that it further includes:

[0008] At least one position sensor is disposed on the cuff for detecting the wearing position of the cuff;

[0009] At least one tension sensor is disposed on or in conjunction with the cuff for detecting the tightness of the cuff;

[0010] A microcontroller electrically connected to the position sensor and the tightness sensor;

[0011] The microcontroller is configured to receive and analyze the detection signals from the position sensor and the tightness sensor to determine whether the wearing position and tightness of the cuff meet preset conditions; the prompting unit is configured to issue a prompt message when the microcontroller determines that the wearing position or tightness of the cuff does not meet preset conditions.

[0012] Preferably, the position sensor is disposed on the inner surface of the cuff.

[0013] Preferably, the position sensor includes at least one of a pressure sensor array, an optical sensor, an ultrasonic sensor, or a contact sensor.

[0014] Preferably, the tightness sensor includes at least one of a tension sensor, a pressure sensor, or a deformation sensor.

[0015] Preferably, the prompting unit includes a voice prompting unit and / or a visual prompting unit.

[0016] Preferably, the voice prompt unit is a speaker, and the visual prompt unit is a display screen or an indicator light.

[0017] In a preferred embodiment, the position sensor may be disposed on the inner surface of the cuff, for example, distributed along the length of the cuff or in a specific area (such as the area intended to be aligned with the brachial artery). Sensor types may include, but are not limited to: pressure sensor arrays: determining alignment with the brachial artery by sensing the distribution of arterial pulsation pressure below; optical sensors (such as infrared or photoplethysmography PPG sensors): detecting the location of subcutaneous vessels or blood flow signal characteristics; ultrasound sensors: probing subcutaneous tissue structures and locating arteries; contact sensors / switches: triggered when a portion of the cuff is not in contact with the skin.

[0018] In a preferred embodiment, the tightness sensor can be implemented as: a tension sensor: measuring the tension of the cuff material itself; a pressure sensor: integrated in the cuff fastener (such as Velcro) area to measure the closing pressure; or detecting the initial contact pressure between the cuff and the arm before the cuff is inflated; and a deformation sensor: measuring the degree of deformation of a specific part of the cuff.

[0019] In a preferred embodiment, the prompting unit may include: a voice prompting unit (e.g., a speaker): playing preset voice commands, such as "Please move the cuff upwards," "The cuff is too loose, please tighten it," or "Wearing it correctly, you can start measuring." A visual prompting unit (e.g., a display screen on the blood pressure monitor body or an indicator light on the cuff): prompting the user to adjust the direction, tightness, or confirm the wearing status through text, icons, different colored lights, or light flashing patterns.

[0020] In a preferred embodiment, the microcontroller is further configured to allow the blood pressure measurement program (i.e., to start inflating the cuff) to start only when the position and tightness of the cuff are both within a preset correct range; otherwise, it will continuously prompt the user to make adjustments through the prompt module until the cuff is worn correctly.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] Improved measurement accuracy: The built-in sensor detects the position and tightness of the cuff in real time and provides clear prompts to the user when it is not worn correctly, guiding the user to operate correctly and effectively avoiding measurement errors caused by incorrect wearing, thus significantly improving the accuracy and reliability of blood pressure measurement.

[0023] Enhanced user experience: Automated and intelligent wearing guidance reduces the requirements for users' professional knowledge and operating skills, making operation simpler, more intuitive and convenient, especially for the elderly, people with poor eyesight or beginners.

[0024] Reduce invalid measurements: Measurements are only initiated after the correct wearing condition is confirmed, avoiding repeated measurements due to improper wearing, saving time and battery power, and reducing potential anxiety for users.

[0025] Enhanced health management: More accurate blood pressure data helps users better understand their own health status and provides doctors with a more reliable basis for diagnosis. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram illustrating an example of the sensor layout in the cuff section of this utility model.

[0029] Figure 3 This is a flowchart of the workflow of this utility model.

[0030] In the diagram: 1-Blood pressure monitor body; 2-Cuff; 3-Position sensor; 4-Tightness sensor; 5-Microcontroller; 6-Indication module; 6a-Indication unit; 6b-Visual indication unit; 7-Connecting tubing; 8-Power supply. Detailed Implementation

[0031] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] Reference Figure 1 and Figure 2 This utility model provides an electronic blood pressure monitor with cuff wearing status detection function, mainly including a blood pressure monitor body 1 and a cuff 2 connected to the body 1 (i.e., the blood pressure monitor body 1 for short) via a connecting pipe 7. The blood pressure monitor body 1 typically includes conventional components such as an air pump, an air valve, a main control circuit board (integrating a microcontroller 5, memory, etc.), a display screen (which can be part of a visual prompt unit 6b), buttons, and a power supply 8 (such as a battery or an external power interface).

[0033] The key improvement of this invention lies in the cuff 2 and the corresponding detection and alerting system. At least one position sensor 3 is disposed on the inner surface of the cuff 2 (i.e., the side that contacts the skin of the arm). In this embodiment, it can be as follows... Figure 2 As shown, one or more position sensors 3, such as a miniature pressure sensor array, are arranged in the middle region along the length of the cuff 2. When the user wears the cuff on the upper arm, the microcontroller 5 determines whether the center of the cuff is roughly aligned with the brachial artery by analyzing the pressure distribution characteristics sensed by these sensors 3 (such as whether a clear, centered brachial artery pulsation point is detected).

[0034] Meanwhile, at least one tension sensor 4 is also provided on the cuff 2. For example, a pressure sensor can be placed near the Velcro buckle of the cuff, or a tension sensor can be integrated into the cuff fabric. The microcontroller 5 reads the signal from the tension sensor 4 and compares it with a preset appropriate tension range (for example, a pressure or tension range that ensures no air leakage, no slippage, and no excessive pressure on the arm before inflation).

[0035] The microcontroller 5 is integrated on the main control circuit board of the blood pressure monitor body 1, and is connected to the position sensor 3 and tightness sensor 4 on the cuff 2 via wires (which can be integrated into the connecting pipe 7 or wired separately). The microcontroller 5 continuously receives signals from the sensors 3 and 4.

[0036] The prompt module 6 can be integrated into the blood pressure monitor body 1, for example, by using its existing speaker as a voice prompt unit 6a and the display screen as a visual prompt unit 6b.

[0037] Workflow Example (Reference) Figure 3 ):

[0038] S1. The user puts the cuff 2 on the upper arm.

[0039] S2, The user presses the start button or the device automatically senses the wearing action.

[0040] S3, Microcontroller 5 begins reading data from position sensor 3 and tension sensor 4.

[0041] S4, Microcontroller 5 analyzes data:

[0042] S41. Determine position: Compare the sensor signal characteristics with the preset brachial artery position characteristic model to determine whether they are aligned.

[0043] S42. Determine tightness: Compare the sensor reading with the preset appropriate tightness threshold range.

[0044] Assess wearing status:

[0045] If the position and tightness are both within the correct range, the microcontroller 5 determines that the garment is worn correctly. The prompt module 6 can issue a "wearing correctly" prompt (such as a voice or screen icon) and automatically or after user confirmation start the blood pressure measurement program (controlling the air pump to pressurize).

[0046] If the position is incorrect (e.g., too high, too low, too left, or too right), the microcontroller 5 issues a specific adjustment instruction through the prompt module 6, such as a voice prompt "Please move the cuff down" or a downward arrow displayed on the screen.

[0047] If the tightness is not appropriate (e.g., too loose or too tight), the microcontroller 5 issues an adjustment command through the prompt module 6, such as a voice prompt "The cuff is too loose, please tighten it" or a tightening icon is displayed on the screen.

[0048] If the position and tightness are both incorrect, prompts can be given according to priority (e.g., adjust the position first) or both at the same time.

[0049] S5. The user adjusts the cuff according to the prompts.

[0050] S6. Microcontroller 5 re-detects the wearing status (returns to step 3 or 4) until the wearing is correct.

[0051] Through the above structure and working method, this utility model can effectively guide users to wear the cuff correctly, thereby significantly improving the accuracy of blood pressure measurement.

Claims

1. An electronic blood pressure monitor with cuff wearing status detection function, comprising a blood pressure monitor body (1) and a cuff (2) connected to the blood pressure monitor body (1), characterized in that, Also includes: At least one position sensor (3) is disposed on the cuff (2) for detecting the wearing position of the cuff (2); At least one tightness sensor (4) is disposed on or in conjunction with the cuff (2) for detecting the tightness of the cuff (2); A microcontroller (5) electrically connected to the position sensor (3) and the tightness sensor (4); And a prompting unit (6) connected to the microcontroller (5); wherein the microcontroller (5) is configured to: receive and analyze the detection signals of the position sensor (3) and the tightness sensor (4), and determine whether the wearing position and tightness of the cuff (2) meet the preset conditions; the prompting unit (6) is configured to: issue a prompting message when the microcontroller (5) determines that the wearing position or tightness of the cuff (2) does not meet the preset conditions.

2. The electronic blood pressure monitor according to claim 1, characterized in that, The position sensor (3) is disposed on the inner surface of the cuff (2).

3. The electronic blood pressure monitor according to claim 2, characterized in that, The position sensor (3) includes at least one of a pressure sensor array, an optical sensor, an ultrasonic sensor, or a contact sensor.

4. The electronic blood pressure monitor according to claim 1, characterized in that, The tightness sensor (4) includes at least one of a tension sensor, a pressure sensor, or a deformation sensor.

5. The electronic blood pressure monitor according to claim 1, characterized in that, The prompting unit (6) includes a voice prompting unit (6a) and / or a visual prompting unit (6b).

6. The electronic blood pressure monitor according to claim 5, characterized in that, The voice prompt unit (6a) is a speaker, and the visual prompt unit (6b) is a display screen or indicator light.

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