Adjustable blood pressure detection cuff and automatic adjustment method thereof

Abstract

The present invention provides an adjustable blood pressure detection cuff and an automatic adjustment method thereof, relating to the field of blood pressure measurement technology, comprising: an adjustable cuff, wherein a plurality of air bags are provided on the adjustable cuff, each air bag is connected to an electrically controlled air valve, and each electrically controlled air valve is connected to an air charging and discharging module and an air valve control module; a circumference measurement module is provided on the adjustable cuff and is used to measure the circumference of a part to be measured of a person being measured; an adaptation control module is respectively connected to the air charging and discharging module, the air valve control module and the circumference measurement module, and is used to obtain a target length and a target width according to circumference processing, and control the air valve control module to open each electrically controlled air valve of each required air bag according to the target length and target width, and then control the air charging and discharging module to inflate each required air bag to automatically adjust the adjustable cuff to the target length and target width. The beneficial effect is that the length and width of the cuff can be automatically adjusted. The operation is simple, no manual intervention is required, and the length and width adjustment of the cuff is high in accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of blood pressure measurement, and in particular to an adjustable blood pressure detection cuff and an automatic adjustment method thereof. Background Art

[0002] Currently, digital blood pressure monitors generally use cuffs that are suitable for the upper limbs of adults. Since different groups of people and different measurement sites are involved in measuring blood pressure, including adults, teenagers, and children, and the measurement sites can be upper limbs or lower limbs, different sizes of cuffs are required to measure blood pressure at different measurement sites, and the sizes of cuffs suitable for adults and minors are quite different. Using a fixed size cuff in different situations can easily lead to inaccurate blood pressure data. For this reason, the solution adopted by many manufacturers is to launch different models of digital blood pressure monitors for different body types, and the cuff size of each model of blood pressure monitor is adapted to a different body type. However, based on this solution, in order to adapt to people of different body types or different measurement sites, the measurement personnel need to be equipped with multiple models of digital blood pressure monitors at the same time, which is very inflexible and costly to use. Summary of the Invention

[0003] In view of the problems existing in the prior art, the present invention provides an adjustable blood pressure detection cuff, comprising:

[0004] An adjustable cuff, wherein the adjustable cuff is provided with a plurality of airbags, each of the airbags is connected to an electrically controlled air valve, and each electrically controlled air valve is connected to an air filling and deflation module and an air valve control module;

[0005] A circumference measurement module, provided on the adjustable cuff, for measuring the circumference of the part to be measured of the person being measured;

[0006] An adaptation control module is respectively connected to the inflation and deflation module, the air valve control module and the circumference measurement module, and is used to obtain a target length and a target width according to the circumference processing, and control the air valve control module to open each of the required electronically controlled air valves of each of the air bags according to the target length and the target width, and then control the inflation and deflation module to inflate each of the required air bags to automatically adjust the adjustable cuff to the target length and the target width.

[0007] Preferably, each of the airbags has a position number; the adaptation control module includes:

[0008] A first storage unit is used to store a pre-configured first ratio value and a second ratio value, and length and width data of each of the airbags;

[0009] a first processing unit, connected to the first storage unit, configured to multiply the circumference by the first ratio value and the second ratio value respectively to obtain the target length and the target width;

[0010] a second processing unit, connected to the first storage unit and the first processing unit, respectively, for obtaining a required position number of each of the airbags according to the target length, the target width and the length and width data;

[0011] A control unit, connected to the second processing unit, is used to send the position number of each required airbag to the air valve control module to control the air valve control module to open each of the required electric-controlled air valves of each airbag, and then control the inflation and deflation module to inflate each of the required airbags to automatically adjust the adjustable cuff to the target length and the target width.

[0012] Preferably, the airbags are distributed in an array on the adjustable cuff; and the second processing unit includes:

[0013] a first processing subunit, configured to obtain the number of the airbags required along the length direction of the adjustable cuff according to the target length and the airbag length in the length and width data;

[0014] a second processing subunit, configured to obtain the number of the airbags required along the width direction of the adjustable cuff according to the target width and the airbag width in the length and width data;

[0015] The third processing subunit is connected to the first processing subunit and the second processing subunit respectively, and is used to process the required position numbers of each airbag according to the number of the airbags required along the length direction of the adjustable cuff and the number of the airbags required along the width direction of the adjustable cuff.

[0016] Preferably, the adaptation control module further includes:

[0017] A second storage unit is used to store at least one set of preset common sizes, each set of common sizes including a common length and a corresponding common width;

[0018] a first extraction unit, connected to the second processing unit and the second storage unit, respectively, for extracting a group of the common sizes corresponding to the selection instruction from the second storage unit upon receiving an external selection instruction, and sending the group to the second processing unit;

[0019] The second processing unit is also used to obtain the required position numbers of each of the airbags based on the common length, the common width and the length and width data corresponding to the received common sizes, and then the control unit controls the inflation of the corresponding airbags to adjust the adjustable cuff to the common length and the common width.

[0020] Preferably, the control unit is further configured to control the inflation and deflation module to deflate each of the required airbags after the adjustable cuff is pressurized at the target length and the target width, and generate a reset signal after deflation is completed;

[0021] Then the adaptation control module further includes:

[0022] The third storage unit is used to store a preset standard length and a corresponding standard width;

[0023] a second extracting unit, connected to the third storage unit and the second processing unit, respectively, for extracting the standard length and the standard width from the third storage unit and sending them to the second processing unit upon receiving the reset signal;

[0024] The second processing unit is also used to obtain the position number of each airbag required for reset based on the received standard length, standard width and length and width data; the control unit then controls the inflation of each corresponding airbag to automatically reset the adjustable cuff to the standard length and standard width.

[0025] Preferably, an image acquisition device is integrated on a blood pressure monitor associated with the adjustable cuff and connected to the adaptation control module, for acquiring a body image of the person to be measured and extracting body shape features of the person to be measured based on the body image;

[0026] Then the adaptation control module further includes:

[0027] A fourth storage unit is used to store at least one pair of body features, each pair of the body features being associated with an adaptation length and an adaptation width;

[0028] a third extraction unit, connected to the fourth storage unit and the second processing unit, respectively, for extracting the associated adapted length and adapted width from the fourth storage unit according to the body shape feature;

[0029] The second processing unit is also used to obtain the position number of each airbag required for the body shape characteristics based on the received adaptation length, adaptation width and length and width data; the control unit then controls the inflation of the corresponding airbags to automatically adjust the adjustable cuff to the adaptation length and adaptation width.

[0030] Preferably, the adaptation control module includes a precise adjustment unit for obtaining a blood pressure value measured by the sphygmomanometer with the adjustable cuff at the adaptation length and the adaptation width, and generating a precise adjustment signal when the blood pressure value is abnormal, so as to control the circumference measurement module to measure the circumference of the measured part of the measured person;

[0031] The adaptation control module then accurately adjusts the adjustable cuff to the target length and the target width corresponding to the circumference according to the circumference, so that the blood pressure monitor can re-measure the blood pressure with the adjustable cuff at the target length and the target width.

[0032] Preferably, the adaptation control module further includes an adaptive expansion unit connected to the first processing unit and the second processing unit respectively, and the adaptive expansion unit includes:

[0033] a first expansion subunit, configured to, when it is determined that the target length is greater than a pre-acquired actual maximum length of the adjustable cuff, obtain an expanded target width according to the actual maximum length, the target length, and the target width;

[0034] The second processing unit obtains the required position number of each of the airbags according to the actual maximum length and the target width after expansion;

[0035] a second expansion subunit, configured to obtain an expanded target length according to the actual maximum width, the target length, and the target width when it is determined that the target width is greater than a pre-acquired actual maximum width of the adjustable cuff;

[0036] The second processing unit obtains the required position number of each of the airbags according to the actual maximum width and the target length after expansion.

[0037] The present invention also provides an automatic adjustment method for an adjustable blood pressure detection cuff, which is applied to the above-mentioned adjustable blood pressure detection cuff, wherein the adjustable blood pressure detection cuff includes an adjustable cuff, wherein the adjustable cuff is provided with a plurality of air bags, each of the air bags is connected to a corresponding electrically controlled air valve, and each electrically controlled air valve is connected to an air charging and discharging module and an air valve control module;

[0038] The automatic adjustment method includes:

[0039] Step S1, the adjustable blood pressure detection cuff measures the circumference of the measured part of the measured person;

[0040] In step S2, the adjustable blood pressure detection cuff obtains a target length and a target width according to the circumference processing, and controls the air valve control module to open the electrically controlled air valves of the required air bags according to the target length and the target width, and then controls the inflation and deflation module to inflate the required air bags to automatically adjust the adjustable cuff to the target length and the target width.

[0041] Preferably, each of the airbags has a position number; the adjustable blood pressure detection cuff stores a pre-configured first ratio value and a second ratio value, as well as length and width data of each of the airbags;

[0042] Then the step S2 includes:

[0043] Step S21, the adjustable blood pressure detection cuff multiplies the circumference by the first ratio value and the second ratio value respectively to obtain the target length and the target width;

[0044] Step S22, the adjustable blood pressure detection cuff obtains the required position number of each airbag according to the target length, the target width and the length and width data;

[0045] In step S23, the adjustable blood pressure detection cuff sends the position number of each required airbag to the valve control module to control the valve control module to open the electronically controlled air valves of each required airbag, and then controls the inflation and deflation module to inflate each required airbag to automatically adjust the adjustable cuff to the target length and the target width.

[0046] The above technical solution has the following advantages or beneficial effects: by designing the cuff airbags into an airbag array, and calculating the airbags that need to be inflated according to the circumference of the part to be measured, the specified airbags are inflated and deflated, thereby realizing automatic adjustment of the length and width of the cuff. The operation is simple, no manual intervention is required, cost is effectively saved, and the cuff length and width adjustment is highly accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic structural diagram of an adjustable blood pressure monitoring cuff in a preferred embodiment of the present invention;

[0048] Figure 2 This is a schematic diagram of an array-like distribution of airbags in a preferred embodiment of the present invention;

[0049] Figure 3 FIG1 is a flow chart of a method for automatically adjusting an adjustable blood pressure monitoring cuff in a preferred embodiment of the present invention;

[0050] Figure 4This is a schematic diagram of a sub-flow chart of step S2 in a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0051] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. The present invention is not limited to this embodiment, and other embodiments may also fall within the scope of the present invention as long as they conform to the gist of the present invention.

[0052] In a preferred embodiment of the present invention, based on the above problems existing in the prior art, an adjustable blood pressure detection cuff is provided. Figure 1 and Figure 2 Shown, including:

[0053] An adjustable cuff 1 is provided with a plurality of airbags 2, each airbag 2 is connected to an electrically controlled air valve 3, and each electrically controlled air valve 3 is connected to an air filling and deflation module 4 and an air valve control module 5;

[0054] The circumference measurement module 6 is provided on the adjustable cuff 1 and is used to measure the circumference of the part to be measured of the person being measured;

[0055] The adaptation control module 7 is respectively connected to the inflation and deflation module 4, the valve control module 5 and the circumference measurement module 6, and is used to obtain a target length and a target width according to the circumference processing, and control the valve control module 5 to open the electronically controlled valves 3 of the required air bags 2 according to the target length and target width, and then control the inflation and deflation module 4 to inflate the required air bags 2 to automatically adjust the adjustable cuff 1 to the target length and target width.

[0056] Specifically, in this embodiment, multiple airbags 2 are provided on the adjustable cuff 1, and each airbag 2 is independently controlled by a corresponding electrically controlled air valve 3, and then by flexibly controlling the opening and closing of each electrically controlled air valve 3, the required airbags 2 can be independently inflated and deflated, thereby flexibly adjusting the length and width of the adjustable cuff to adapt to the blood pressure measurement needs of different people, different body shapes and different measurement parts.

[0057] When blood pressure measurement is required, the circumference of the measured part of the person being measured can be first measured through the circumference measurement module 6, and then the circumference can be converted into the target length and target width of the required adjustable cuff 1, so that when the adjustable cuff 1 is circumferentially wrapped around the measured part, the electric control valve 3 of each required air bag 2 can be opened by controlling the air valve control module 5, so as to realize blood pressure measurement of the adjustable cuff 1 at the target length and target width, thereby improving the measurement accuracy without the need for manual intervention and effectively saving costs.

[0058] As a preferred embodiment, Figure 2As shown, the inflation / deflation module 4 has an air pump (not shown) built into it, and the air pump outlet is connected to an inflation / deflation pipe 41. A one-way air valve 411 is provided inside the inflation / deflation pipe 41. When the one-way air valve 411 is opened, the inflation / deflation module 4 delivers gas outward through the air outlet 412 of the inflation / deflation pipe 41. A deflation valve 413 is provided on one side of the inflation / deflation pipe 41 near the air outlet 412. The air outlet 412 of the inflation / deflation pipe 41 is connected to an air supply pipe 42, which includes branches 421 corresponding to each airbag 2, and each branch 421 is provided with an electrically controlled air valve 3. When the corresponding airbag 2 needs to be inflated, the adaptive control module 7 controls the one-way air valve 411 of the inflation and deflation module 4 to open, the deflation valve 413 to close, and the air valve control module 5 controls the corresponding electronically controlled air valve 3 to open, thereby inflating the airbag 2 through the inflation and deflation pipe 41 and the air supply pipe 4 via the corresponding electronically controlled air valve 3, completing the inflation and pressurization process for blood pressure measurement. After the inflation and pressurization are completed, the adaptive control module 7 controls the deflation valve 413 of the inflation and deflation module 4 to open, and the gas in the airbag 2 passes through the electronically controlled air valve 3, the air supply pipe 4, and the inflation and deflation pipe 41 in sequence, and finally is discharged to the outside by the deflation valve, thus completing the deflation process for blood pressure measurement and completing the entire blood pressure measurement process.

[0059] As a preferred embodiment, the circumference measurement module 6 can measure the circumference of the measured part using a contact or non-contact measurement method. For contact measurement, the circumference measurement module 6 can be integrated into the inner side of an adjustable cuff and measure the circumference of the measured part through electrical contact induction. For non-contact measurement, the circumference measurement module 6 can measure the circumference of the measured part using measurement methods including but not limited to laser, infrared, and ultrasonic. The circumference measurement module 6 can be implemented by selecting existing acquisition components based on different measurement methods, and the specific principles will not be repeated here.

[0060] In a preferred embodiment of the present invention, each airbag 2 has a position number; the adaptation control module 7 includes:

[0061] The first storage unit 71 is used to store a pre-configured first ratio value and a second ratio value, as well as length and width data of each airbag;

[0062] The first processing unit 72 is connected to the first storage unit 71 and is used to multiply the circumference by the first ratio value and the second ratio value respectively to obtain the target length and the target width;

[0063] The second processing unit 73 is connected to the first storage unit 71 and the first processing unit 72, and is used to obtain the required position numbers of the airbags according to the target length, target width and length and width data;

[0064] The control unit 74 is connected to the second processing unit 73 and is used to send the position numbers of the required airbags to the air valve control module to control the air valve control module to open the electronically controlled air valves of the required airbags, and then control the inflation and deflation module to inflate the required airbags to automatically adjust the adjustable cuff to the target length and target width.

[0065] Specifically, in this embodiment, the adaptation control module 7 has a configuration port. The above-mentioned first ratio value and second ratio value are the optimal length-to-width ratios of the cuff. The measurement personnel can customize the first ratio value and the second ratio value through the configuration port. Preferably, the first ratio value is 80% and the second ratio value is 40%.

[0066] In a preferred embodiment of the present invention, the airbags 2 are distributed in an array on the adjustable cuff 1; the second processing unit 73 includes:

[0067] The first processing subunit 731 processes the target length and the airbag length in the length and width data to obtain the number of airbags required along the length direction of the adjustable cuff;

[0068] The second processing sub-unit 732 is configured to obtain the number of air bags required along the width direction of the adjustable cuff according to the target width and the air bag width in the length and width data;

[0069] The third processing subunit 733 is connected to the first processing subunit 731 and the second processing subunit 732 respectively, and is used to obtain the required position numbers of each airbag according to the number of airbags required along the length direction of the adjustable cuff and the number of airbags required along the width direction of the adjustable cuff.

[0070] Specifically, in this embodiment, the length and width data of the airbags 2 distributed in an array can be consistent or inconsistent, and the overall array distribution can be sufficient to facilitate the calculation of the required number of airbags. The airbags are preferably distributed in a 30*50 array, that is, 50 airbags are distributed in each row in the length direction of the adjustable cuff and 30 airbags are distributed in each column in the width direction. The corresponding position number of the airbag 2 in the first row and first column can be A(1,1), and so on. The length and width data of each airbag 2 are preferably 1cm*1cm. If the target width is 20cm and the target length is 40 sides, the number of airbags required along the length direction of the adjustable cuff is 40, and the number of airbags required along the width direction of the adjustable cuff is 20. The position numbers of the required airbags are A(1,1)-A(1,40), A(2,1)-A(2,40), ..., A(20,1)-A(20,40).

[0071] In a preferred embodiment of the present invention, the adaptation control module 7 further includes:

[0072] The second storage unit 75 is used to store at least one set of preset common sizes, each set of common sizes including a common length and a corresponding common width;

[0073] The first extraction unit 76 is connected to the second processing unit 73 and the second storage unit 75, and is used to extract a group of common sizes corresponding to the selection instruction from the second storage unit 75 and send the group to the second processing unit 73 upon receiving an external selection instruction;

[0074] The second processing unit 73 is also used to process the common length, common width and length-width data corresponding to the received common sizes to obtain the required position numbers of each airbag, and then the control unit controls the inflation of the corresponding airbags to adjust the adjustable cuff to the common length and common width.

[0075] Specifically, in this embodiment, the commonly used sizes mentioned above include, but are not limited to, three: a large size for obese individuals, a medium size for individuals of standard build, and a small size for thinner individuals. The adaptation control module 7 can be provided with a corresponding selection module, which can be provided via a button or an interactive interface, allowing the measurement personnel to select the size based on their needs. By configuring multiple sets of commonly used sizes for different populations, blood pressure measurements for individuals of relatively standard builds can be performed without requiring circumference measurements of the measured area, effectively improving measurement efficiency.

[0076] In a preferred embodiment of the present invention, the control unit 74 is further configured to control the inflation and deflation module 4 to deflate the required airbags after the adjustable cuff is pressurized to the target length and target width, and to generate a reset signal after deflation is completed;

[0077] The adaptation control module 7 further includes:

[0078] The third storage unit 77 is used to store a preset standard length and a corresponding standard width;

[0079] The second extraction unit 78 is connected to the third storage unit 77 and the second processing unit 73 respectively, and is used to extract the standard length and standard width from the third storage unit 77 and send them to the second processing unit 73 when receiving the reset signal;

[0080] The second processing unit 73 is also used to obtain the position number of each airbag required for reset based on the received standard length, standard width and length and width data; the control unit 74 then controls the inflation of the corresponding airbags to automatically reset the adjustable cuff to the standard length and standard width.

[0081] Specifically, in this embodiment, the above-mentioned standard length and standard width can be one of multiple sets of commonly used sizes, or can be customized according to needs. After the pressurization is completed, the inflation and deflation module 4 is controlled to deflate the required airbags to complete the blood pressure measurement process. At this time, all airbags are in a non-inflated state. Preferably, at this time, each airbag can be controlled to remain in a non-inflated state for use in the next blood pressure measurement. However, in this case, the circumference of the measured part must be measured first when the blood pressure is measured next time. In this embodiment, the adjustable cuff can be controlled to automatically reset to the standard length and standard width. Under normal circumstances, it can be directly used for the next blood pressure measurement, effectively improving the measurement efficiency.

[0082] In a preferred embodiment of the present invention, an image acquisition device is integrated on a blood pressure monitor associated with the adjustable cuff and connected to the adaptation control module 7, for acquiring a human body image of the person to be measured and extracting the body shape characteristics of the person to be measured based on the human body image;

[0083] The adaptation control module 7 further includes:

[0084] A fourth storage unit 79 is used to store at least one body feature, each body feature pair being associated with an adaptation length and an adaptation width;

[0085] The third extraction unit 70 is connected to the fourth storage unit 79 and the second processing unit 73, and is used to extract the associated adaptive length and adaptive width from the fourth storage unit according to the body shape characteristics;

[0086] The second processing unit 73 is also used to obtain the position numbers of each airbag required for the body shape characteristics based on the received adaptation length, adaptation width and length and width data; the control unit 74 then controls the inflation of the corresponding airbags to automatically adjust the adjustable cuff to the adaptation length and adaptation width.

[0087] Specifically, in this embodiment, the above-mentioned body shape characteristics are used to characterize the person to be tested as obese, standard, or thin, and can also characterize the measurement part characteristics of the person to be tested, such as the thigh or forearm. Based on the body shape characteristics, the adaptive length and adaptive width are intelligently matched, and the adjustable cuff is controlled to automatically adjust to the adaptive length and adaptive width without manual intervention.

[0088] In a preferred embodiment of the present invention, the adaptation control module 7 includes a precise adjustment unit 8 for obtaining a blood pressure value measured by the sphygmomanometer when the adjustable cuff is at an adapted length and width, and generating a precise adjustment signal when the blood pressure value is abnormal to control the circumference measurement module to measure the circumference of the measured part of the measured person;

[0089] The adaptation control module 7 then accurately adjusts the adjustable cuff to the target length and target width corresponding to the circumference according to the circumference, so that the blood pressure monitor can re-measure the blood pressure when the adjustable cuff is at the target length and target width.

[0090] Specifically, taking into account individual differences, people with a slightly overweight body shape may not necessarily have a slightly overweight body part to be measured. When using the adapted length and adapted width for measurement, this factor may affect the measurement results and lead to differences. Therefore, in this embodiment, when the blood pressure value obtained by measuring based on the adapted length and adapted width is abnormal, in order to exclude the cause of the length and width mismatch of the adjustable cuff, the circumference of the part to be measured can be measured based on the precise adjustment signal, and then the blood pressure can be re-measured based on the precise target length and target width associated with the circumference for reference by the person to be measured or the measuring person. The above-mentioned abnormal blood pressure values ​​include but are not limited to systolic blood pressure lower than the average blood pressure of people of this body type.

[0091] In a preferred embodiment of the present invention, the adaptation control module 7 further includes an adaptive expansion unit 9, which is connected to the first processing unit 72 and the second processing unit 73 respectively. The adaptive expansion unit 9 includes:

[0092] The first expansion subunit 91 is configured to obtain an expanded target width based on the actual maximum length, the target length, and the target width when it is determined that the target length is greater than an actual maximum length of the adjustable cuff obtained in advance;

[0093] The second processing unit 73 obtains the required position numbers of the airbags according to the actual maximum length and the target width after expansion;

[0094] The second expansion subunit 92 is configured to obtain an expanded target length according to the actual maximum width, the target length, and the target width when it is determined that the target width is greater than an actual maximum width of the adjustable cuff obtained in advance;

[0095] The second processing unit 73 obtains the required position numbers of the airbags according to the actual maximum width and the target length after expansion.

[0096] Specifically, in this embodiment, taking into account individual differences, when measuring blood pressure, some individuals may be overweight, causing the ideal target length calculated based on the measured person's circumference to exceed the actual maximum length of the adjustable cuff, or the ideal target width to exceed the actual maximum width of the adjustable cuff. In this case, to ensure consistent cuff pressure and, therefore, blood pressure measurement accuracy, when the target length exceeds the actual maximum length of the adjustable cuff, the target width is expanded according to the following formula to make the target area equal to the ideal fitting area:

[0097] Target length * target width = actual maximum length * expanded target width

[0098] Similarly, when the target width exceeds the actual maximum width of the adjustable cuff, the target length is expanded according to the following formula so that the target area is the same as the ideal fitting area:

[0099] Target length * target width = actual maximum width * expanded target length.

[0100] The present invention also provides an automatic adjustment method for an adjustable blood pressure detection cuff, which is applied to the above-mentioned adjustable blood pressure detection cuff. The adjustable blood pressure detection cuff includes an adjustable cuff, and the adjustable cuff is provided with multiple air bags, each of which is connected to an electrically controlled air valve, and each electrically controlled air valve is connected to an air charging and discharging module and an air valve control module;

[0101] like Figure 3 As shown, the automatic adjustment method includes:

[0102] Step S1, measuring the circumference of the measured part of the measured person with an adjustable blood pressure detection cuff;

[0103] In step S2, the adjustable blood pressure detection cuff obtains a target length and a target width based on the circumference, and controls the air valve control module to open the electronically controlled air valves of the required air bags according to the target length and target width, and then controls the inflation and deflation module to inflate the required air bags to automatically adjust the adjustable cuff to the target length and target width.

[0104] In a preferred embodiment of the present invention, each airbag has a position number; the adjustable blood pressure detection cuff stores a pre-configured first ratio value and a second ratio value, as well as the length and width data of each airbag;

[0105] like Figure 4 As shown, step S2 includes:

[0106] Step S21: The adjustable blood pressure cuff multiplies the circumference by the first ratio value and the second ratio value to obtain a target length and a target width;

[0107] Step S22, the adjustable blood pressure cuff processes the target length, target width, and length and width data to obtain the required position numbers of the airbags;

[0108] In step S23, the adjustable blood pressure detection cuff sends the position numbers of the required air bags to the air valve control module to control the air valve control module to open the electronically controlled air valves of the required air bags, and then controls the inflation and deflation module to inflate the required air bags to automatically adjust the adjustable cuff to the target length and target width.

[0109] Example 1

[0110] The process of automatically adjusting the adjustable cuff using this technical solution for obese people is as follows:

[0111] Taking the circumference of the upper arm of the subject to be measured as 52 cm as measured by the circumference measurement module as an example, the following calculation is performed based on the first ratio value of 80% and the second ratio value of 40%:

[0112] Target length = circumference * 80% = 52 * 80% = 41.6 cm;

[0113] Target width = circumference * 40% = 52 * 40% = 20.8 cm;

[0114] Considering that the length and width data of each airbag are 1cm*1cm, 42 airbags are required along the length direction and 21 airbags along the width direction. The corresponding position numbers include A(1,1)-A(1,42), A(2,1)-A(2,42), ..., A(21,1)-A(20,42).

[0115] Each position number is sent to the air valve control module to control the opening of the corresponding electronically controlled air valve, and then the inflation and deflation module is controlled to inflate the airbags with the above position numbers, so that only the airbags with the electronically controlled air valves opened are inflated, thereby dynamically adjusting the length and width of the adjustable cuff.

[0116] Example 2

[0117] The process for configuring common sizes of adjustable cuffs is as follows:

[0118] The measurement personnel can configure three common sizes through the configuration port: a small size for thin people or children, such as a common length of 22cm and a common width of 12cm; a standard size for people of average body shape, such as a common length of 30cm and a common width of 16cm; and a large size for people of moderate body shape, such as a common length of 36cm and a common width of 16cm. The adaptation control module calculates the position number of each airbag corresponding to the three common sizes. These position numbers can be calculated in real time during blood pressure measurement or pre-calculated and saved for easy reference during measurement.

[0119] Among them, for the small size, the number of airbags required is 22*12=264, and the corresponding position numbers include A(1,1)-A(1,22), A(2,1)-A(2,22), ..., A(12,1)-A(12,22);

[0120] For the standard size, the number of airbags required is 30*16=480, and the corresponding position numbers include A(1,1)-A(1,30), A(2,1)-A(2,30), ..., A(16,1)-A(16,30);

[0121] For the large size, the required number of airbags is 36*16=576, and the corresponding position numbers include A(1,1)-A(1,36), A(2,1)-A(2,36), ..., A(16,1)-A(16,36).

[0122] When measuring blood pressure, when the measurer selects a certain size group, such as the small size, the air valve control module controls the switch of the corresponding electronically controlled air valve according to the position number corresponding to the size, and then the inflation and deflation module inflates each air bag opened by the electronically controlled air valve, thereby automatically adjusting the length and width of the adjustable cuff to the small size, and so on for other sizes.

[0123] Example 3

[0124] The process of configuring the adjustable cuff size is as follows:

[0125] The measurement personnel can pre-configure multiple sets of adaptation sizes based on body characteristics. For example, if the body shape is obese or the measurement part is the thigh, the adaptation length and adaptation width corresponding to the adaptation size can adopt the large size in the above-mentioned embodiment 2. It can be understood that the adaptation length and adaptation width can also be defined as other sizes in addition to the commonly used sizes in the above-mentioned embodiment 2.

[0126] When measuring blood pressure, if the identified body shape is obese or the measurement site is the thigh, the air valve control module controls the switch of the corresponding electronically controlled air valve according to the position number corresponding to the large size, and then the inflation and deflation module inflates each airbag opened by the electronically controlled air valve, thereby automatically adjusting the length and width of the adjustable cuff to the large size. The same applies to other body shape characteristics.

[0127] Example 4

[0128] The precise adjustment process of the adjustable cuff during blood pressure measurement is as follows:

[0129] Before measuring blood pressure, the blood pressure monitor's integrated camera captures image information of the user, such as their face and torso. It then automatically identifies the user's body type and measurement location. For example, if the user's body type is "obese" and the measurement location is "thigh," the adaptation control module selects the appropriate cuff size based on the user's body type, such as "large." The air valve control module, in conjunction with the inflation and deflation modules, automatically switches the cuff size based on the cuff model.

[0130] During the measurement process, if it is found that the user's blood pressure measurement result deviates from the empirical data, for example, the systolic blood pressure is lower than the average blood pressure of this body type, the precise adjustment mode is selected to re-measure the user's blood pressure.

[0131] In the precise adjustment mode, the circumference measurement module measures the thigh circumference in a non-contact manner and sends the circumference data to the adaptation control module. The adaptation control module calculates the required adjustment length and width of the cuff based on the thigh circumference and the optimal length-to-width ratio of the cuff. The adaptation control module calculates the number and position numbers of the cuff airbag array that need to be inflated based on the required length and width of the cuff and the specifications of the airbag array, and then sends the corresponding position number to the air valve control module. The position number of the air valve control module controls the opening and closing of the electronically controlled air valve of the adjustable cuff. The inflation and deflation module inflates the airbag array in the adjustable cuff to accurately adjust the length and width of the cuff. Using the resized cuff, the blood pressure of the user is measured again to ensure the accuracy of the blood pressure measurement results.

[0132] The above description is only a preferred embodiment of the present invention and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included in the protection scope of the present invention.

Claims

1. An adjustable blood pressure monitoring cuff, characterized in that: include: An adjustable cuff, wherein the adjustable cuff is provided with a plurality of airbags, each of the airbags is connected to an electrically controlled air valve, and each electrically controlled air valve is connected to an air filling and deflation module and an air valve control module; A circumference measurement module, provided on the adjustable cuff, for measuring the circumference of the part to be measured of the person being measured; an adaptation control module, connected to the inflation and deflation module, the air valve control module, and the circumference measurement module, respectively, for obtaining a target length and a target width based on the circumference processing, and controlling the air valve control module to open the electronically controlled air valves of the required air bags according to the target length and the target width, and then controlling the inflation and deflation module to inflate the required air bags, so as to automatically adjust the adjustable cuff to the target length and the target width; Each of the airbags has a position number, and the adaptation control module includes: A first storage unit is used to store a pre-configured first ratio value and a second ratio value, and length and width data of each of the airbags; a first processing unit, connected to the first storage unit, configured to multiply the circumference by the first ratio value and the second ratio value respectively to obtain the target length and the target width; a second processing unit, connected to the first storage unit and the first processing unit, respectively, for obtaining a required position number of each of the airbags according to the target length, the target width and the length and width data; an adaptive expansion unit, connected to the first processing unit and the second processing unit, respectively, and comprising: a first expansion subunit, configured to, when it is determined that the target length is greater than a pre-acquired actual maximum length of the adjustable cuff, obtain an expanded target width according to the actual maximum length, the target length, and the target width; The second processing unit obtains the required position number of each of the airbags according to the actual maximum length and the target width after expansion; a second expansion subunit, configured to obtain an expanded target length according to the actual maximum width, the target length, and the target width when it is determined that the target width is greater than a pre-acquired actual maximum width of the adjustable cuff; The second processing unit obtains the required position number of each of the airbags according to the actual maximum width and the target length after expansion.

2. The adjustable blood pressure monitoring cuff according to claim 1, characterized in that: The adaptation control module includes: A control unit, connected to the second processing unit, is used to send the position number of each required airbag to the air valve control module to control the air valve control module to open each of the required electric-controlled air valves of each airbag, and then control the inflation and deflation module to inflate each of the required airbags to automatically adjust the adjustable cuff to the target length and the target width.

3. The adjustable blood pressure monitoring cuff according to claim 2, characterized in that: The airbags are distributed in an array on the adjustable cuff; the second processing unit includes: a first processing subunit, configured to obtain the number of the airbags required along the length direction of the adjustable cuff according to the target length and the airbag length in the length and width data; a second processing subunit, configured to obtain the number of the airbags required along the width direction of the adjustable cuff according to the target width and the airbag width in the length and width data; The third processing subunit is connected to the first processing subunit and the second processing subunit respectively, and is used to process the required position numbers of each airbag according to the number of the airbags required along the length direction of the adjustable cuff and the number of the airbags required along the width direction of the adjustable cuff.

4. The adjustable blood pressure monitoring cuff according to claim 2, characterized in that: The adaptation control module also includes: A second storage unit is used to store at least one set of preset common sizes, each set of common sizes including a common length and a corresponding common width; a first extraction unit, connected to the second processing unit and the second storage unit, respectively, for extracting a group of the common sizes corresponding to the selection instruction from the second storage unit upon receiving an external selection instruction, and sending the group to the second processing unit; The second processing unit is also used to obtain the required position numbers of each of the airbags based on the common length, the common width and the length and width data corresponding to the received common sizes, and then the control unit controls the inflation of the corresponding airbags to adjust the adjustable cuff to the common length and the common width.

5. The adjustable blood pressure monitoring cuff according to claim 2, characterized in that: The control unit is further configured to control the inflation and deflation module to deflate each of the required airbags after the adjustable cuff is pressurized to the target length and the target width, and to generate a reset signal after deflation is completed; Then the adaptation control module further includes: The third storage unit is used to store a preset standard length and a corresponding standard width; a second extracting unit, connected to the third storage unit and the second processing unit, respectively, for extracting the standard length and the standard width from the third storage unit and sending them to the second processing unit upon receiving the reset signal; The second processing unit is also used to obtain the position number of each airbag required for reset based on the received standard length, standard width and length and width data; the control unit then controls the inflation of each corresponding airbag to automatically reset the adjustable cuff to the standard length and standard width.

6. The adjustable blood pressure monitoring cuff according to claim 4, characterized in that: An image acquisition device is integrated on a blood pressure monitor associated with the adjustable cuff and connected to the adaptation control module, for acquiring a body image of the measured person and extracting body shape features of the measured person based on the body image; Then the adaptation control module further includes: A fourth storage unit is used to store at least one pair of body features, each pair of the body features being associated with an adaptation length and an adaptation width; a third extraction unit, connected to the fourth storage unit and the second processing unit, respectively, for extracting the associated adapted length and adapted width from the fourth storage unit according to the body shape feature; The second processing unit is also used to obtain the position number of each airbag required for the body shape characteristics based on the received adaptation length, adaptation width and length and width data; the control unit then controls the inflation of the corresponding airbags to automatically adjust the adjustable cuff to the adaptation length and adaptation width.

7. The adjustable blood pressure monitoring cuff according to claim 6, characterized in that: The adaptation control module includes a precise adjustment unit for obtaining a blood pressure value measured by the sphygmomanometer with the adjustable cuff at the adaptation length and the adaptation width, and generating a precise adjustment signal when the blood pressure value is abnormal, so as to control the circumference measurement module to measure the circumference of the measured part of the measured person; The adaptation control module then accurately adjusts the adjustable cuff to the target length and the target width corresponding to the circumference according to the circumference, so that the blood pressure monitor can re-measure the blood pressure with the adjustable cuff at the target length and the target width.

8. A method for automatically adjusting an adjustable blood pressure cuff, characterized in that: The adjustable blood pressure monitoring cuff according to any one of claims 1 to 7 comprises an adjustable cuff, wherein the adjustable cuff is provided with a plurality of air bags, each of the air bags is connected to an electrically controlled air valve, and each of the electrically controlled air valves is connected to an air charging and discharging module and an air valve control module; The automatic adjustment method includes: Step S1, the adjustable blood pressure detection cuff measures the circumference of the measured part of the measured person; In step S2, the adjustable blood pressure detection cuff obtains a target length and a target width according to the circumference processing, and controls the air valve control module to open the electrically controlled air valves of the required air bags according to the target length and the target width, and then controls the inflation and deflation module to inflate the required air bags to automatically adjust the adjustable cuff to the target length and the target width.

9. The automatic adjustment method according to claim 8, characterized in that: Each of the airbags has a position number; the adjustable blood pressure detection cuff stores a pre-configured first ratio value and a second ratio value, as well as length and width data of each of the airbags; Then the step S2 includes: Step S21, the adjustable blood pressure detection cuff multiplies the circumference by the first ratio value and the second ratio value respectively to obtain the target length and the target width; Step S22, the adjustable blood pressure detection cuff obtains the required position number of each airbag according to the target length, the target width and the length and width data; In step S23, the adjustable blood pressure detection cuff sends the position number of each required airbag to the valve control module to control the valve control module to open the electronically controlled air valves of each required airbag, and then controls the inflation and deflation module to inflate each required airbag to automatically adjust the adjustable cuff to the target length and the target width.

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