Pelvic floor muscle elasticity evaluation system

Abstract

The invention discloses a pelvic floor muscle elasticity evaluation system which comprises an air bag, an inflation device, a pressure detection device, an air bag no-load curve generation module and a pelvic floor muscle elasticity evaluation module. In the no-load state, the air bag no-load curve generation module is used for controlling the air inflation device to inflate the air bag with delta V in a pulse mode every time, the pressure detection device is used for obtaining pressure intensity values corresponding to different diameters of the air bag to serve as control points, and a no-load air bag pressure intensity curve is calculated and generated through the multiple control points on the basis of a uniform node vector and a zero-basis B spline function; the pelvic floor muscle elasticity evaluation module is used for controlling the inflating device to inflate the air bag which is deflated at the lower section of the vagina again in a pulse mode, the pressure intensity value of each control point in the air bag is obtained through the pressure detection device, and the reverse pressure increment delta P generated by the pelvic floor muscle of each control point is calculated in combination with the no-load air bag pressure intensity curve so as to quantitatively evaluate the pelvic floor muscle elasticity. The method has the advantages that interference can be well eliminated, detection and evaluation accuracy is high, operation is objective, repeatability is good, and evaluation results are visual and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of pelvic floor muscle elasticity detection, and in particular to a pelvic floor muscle elasticity evaluation system. Background Art

[0002] The elasticity of a woman's pelvic floor muscles is one of the important indicators for evaluating pelvic floor function, usually obtained through clinical examination or instrument measurement. The following is a professional interpretation of the pelvic floor muscle elasticity value and a common reference range:

[0003] 1. Clinical significance of pelvic floor muscle elasticity

[0004] Pelvic floor muscle elasticity reflects the muscle's contraction force, relaxation ability, and tissue health, and is related to the following issues:

[0005] Postpartum recovery: Childbirth may cause muscle stretching and damage, and decreased elasticity.

[0006] Urinary incontinence / pelvic organ prolapse: Lack of elasticity may lead to decreased ability to control urination.

[0007] Sexual dysfunction: Too much elasticity (hypertension) or too little elasticity (laxity) may affect sexual experience.

[0008] 2. Common assessment methods and normal reference values

[0009] 1. Manual assessment (Oxford classification)

[0010] Doctors use their fingers to feel the strength of muscle contraction and categorize it into 6 levels:

[0011] Grade 0: no contraction; Grade 1-2: weak contraction (poor elasticity); Grade 3: moderate contraction (lower limit of normal); Grade 4-5: good contraction (normal); Grade 6: strong contraction (possibly high tension); Normal range: postpartum women ≥ Grade 3, healthy non-fertile women usually 4-5.

[0012] 2. Instrumental measurement (such as pelvic floor electromyography, ultrasound)

[0013] Electromyographic signal (μV): resting state <2μV, maximum contraction 20-50μV.

[0014] Elastic modulus (ultrasonic shear wave): normal value is about 5-30kPa (varies with age and reproductive history).

[0015] Vaginal pressure value (mmHg): resting pressure 20-40mmHg; maximum contraction pressure 40-100mmHg (higher in young women).

[0016] 3. Functional indicators

[0017] Sustained contraction time: Normally can be maintained for 5-10 seconds (to assess endurance).

[0018] Number of rapid contractions: ≥5 times within 10 seconds (to assess explosive power).

[0019] The existing manual assessment methods mentioned above are based on perception, which can lead to strong subjectivity among doctors. Different doctors have different tactile sensations and different grading, which makes the assessment results less accurate. The instrument measurement methods mentioned above have great limitations in late pregnancy, delivery, and postpartum assessments, and are inconvenient to operate.

[0020] In this regard, the inventor of this patent combined his work experience, conducted in-depth thinking on the problems encountered in the work, read a large amount of scientific research materials and literature, and through searching and novelty, gradually conceived and designed this application to solve the relevant technical problems. Summary of the Invention

[0021] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the present invention aims to provide a pelvic floor muscle elasticity assessment system.

[0022] To achieve one of the above objectives, a pelvic floor muscle elasticity assessment system according to an embodiment of the present invention includes:

[0023] An air bag is used to be placed in the lower part of the vagina to contact the pelvic floor muscles;

[0024] Inflating device; the inflating device is connected to the airbag to provide pulsed inflation to the airbag;

[0025] A pressure detection device; the pressure detection device is connected to the airbag and is used to detect the pressure value in the airbag;

[0026] a control and processing unit connected to the inflation device and the pressure detection device;

[0027] The control and processing unit includes:

[0028] An airbag no-load curve generation module; in an unloaded state, the airbag no-load curve generation module is configured to control the inflation device to pulse-inflate the airbag, with the air volume of each pulse inflation being a fixed value ΔV. The airbag no-load curve generation module controls the inflation device to adjust the airbag's inflation volume to change its diameter, and utilizes the pressure detection device to obtain pressure values ​​corresponding to different airbag diameters as control points. Based on a uniform node vector and a zero-radix B-spline function, the module calculates and generates an unloaded airbag pressure curve using multiple of these control points.

[0029] Pelvic floor muscle elasticity assessment module; the pelvic floor muscle elasticity assessment module is used to control the inflation device to re-inflate the deflated airbag placed in the lower part of the vagina in a pulsed manner, obtain the pressure value of each control point in the airbag through the pressure detection device, calculate the reverse pressure increment ΔP generated by the pelvic floor muscle at each control point in combination with the no-load airbag pressure curve, and evaluate the pelvic floor muscle elasticity based on the reverse pressure increment ΔP.

[0030] In addition, the pelvic floor muscle elasticity assessment system according to the above embodiment of the present invention may also have the following additional technical features:

[0031] According to one embodiment of the present invention, the inflation device includes a micro air pump, a solenoid valve and an air flow controller connected in sequence;

[0032] The micro air pump is used to provide an air source; the solenoid valve is used to control the on and off of the inflation; and the air flow controller is used to accurately control the air volume ΔV of each pulse inflation.

[0033] According to one embodiment of the present invention, the pressure detection device is a pressure sensor; the detection end of the pressure sensor is connected to the interior of the airbag, and is used to collect pressure data in the airbag in real time and transmit it to the control and processing unit.

[0034] According to one embodiment of the present invention, the control and processing unit further includes a storage module and a microprocessor; the airbag no-load curve generation module, the pelvic floor muscle elasticity assessment module and the storage module are all connected to the microprocessor;

[0035] The storage module is used to store the control point data, the empty airbag pressure curve and the evaluation program; the microprocessor is used to execute the evaluation program to realize the control of the inflation device and the processing of pressure data.

[0036] According to one embodiment of the present invention, it further includes a display device connected to the microprocessor;

[0037] The display device is used to display the evaluation results, the no-load airbag pressure curve and the real-time airbag pressure data.

[0038] According to one embodiment of the present invention, the control points include P0, P1, P2, ...P n The basis functions of the (n+1) zero-base B-spline functions are defined by the Cox-de Boor recursive formula, specifically:

[0039] Knot Vector U = {u0, u1, ..., u m}(a total of m+1 nodes)

[0040] Degree p (usually p≤n)

[0041] Parametric equation of the B-spline curve:

[0042]

[0043] in

[0044] ·N i，p (u) is the B-spline basis function

[0045] ·u is a parameter, ranging from [u p ,u m-p ]

[0046] According to one embodiment of the present invention, the node intervals of the node vector are equal, the number of nodes is related to the number of control points and the cardinality, and they satisfy the following conditions with each other: m=n+p+1, where n is the number of control points minus 1, and p=0 is the cardinality.

[0047] According to one embodiment of the present invention, a larger reverse pressure increment ΔP indicates a stronger elasticity of the pelvic floor muscles; a smaller reverse pressure increment ΔP indicates a weaker elasticity of the pelvic floor muscles.

[0048] According to one embodiment of the present invention, the invention further comprises a reverse pressure increment upper limit calculation module and a reverse pressure increment lower limit calculation module connected to the microprocessor;

[0049] The reverse pressure increment upper limit calculation module is used to calculate the pelvic floor muscle reverse pressure increment upper limit value UPLΔP of the corresponding different groups according to the sample size of different groups using a statistical method;

[0050] The reverse pressure increment lower limit calculation module is used to calculate the pelvic floor muscle reverse pressure increment lower limit values ​​LCLΔP of the corresponding different groups according to the sample size of different groups using a statistical method.

[0051] According to an embodiment of the present invention, when the reverse pressure increment ΔP≥UPLΔP, it indicates that the pelvic floor muscles are too elastic; and when the reverse pressure increment ΔP≤LCLΔP, it indicates that the pelvic floor muscles are insufficiently elastic.

[0052] The beneficial effects of the present invention are:

[0053] First, when this application is implemented, it can effectively eliminate interference, so that the detection and evaluation accuracy is high. By using the B-spline function to calculate and generate an empty airbag pressure curve using multiple control points, and performing empty-load calibration on the airbag, the inherent pressure of the airbag itself under different expansion states can be accurately deducted, so that the calculated reverse pressure increment ΔP generated by the pelvic floor muscle at each control point only reflects the pressure increment generated by the pelvic floor muscle, effectively eliminating the interference of the detection tool itself and improving the evaluation accuracy.

[0054] Secondly, when this application is implemented, the operation is objective and repeatable. By setting up the control and processing unit to realize pulsed quantitative inflation (ΔV fixed) and automatic data processing, human operation errors are reduced, making the evaluation process more objective and the results repeatable.

[0055] Third, when the present application is implemented, by setting up the display device for displaying the evaluation results, the no-load airbag pressure curve and the real-time airbag pressure data, the present application can make the pelvic floor muscle elasticity detection and evaluation process and evaluation results very intuitive and efficient, which is convenient for the operator to quickly judge the elasticity status of the pelvic floor muscle, and is suitable for scenarios such as clinical pelvic floor muscle rehabilitation evaluation, making it highly practical.

[0056] Fourthly, the application of this application is applicable whether in the late pregnancy, delivery period or postpartum recovery period, so that the pelvic floor muscle elasticity assessment is not limited and the operation is convenient.

[0057] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0059] Figure 1 This is the overall framework diagram of the pelvic floor muscle elasticity assessment system of the present invention;

[0060] Figure 2 This is a flowchart of the operating steps of the pelvic floor muscle elasticity assessment system of the present invention in a specific application;

[0061] Figure 3 yes Figure 2 The specific flow chart of step S3 described in;

[0062] Figure 4 yes Figure 2 The specific flow chart of step S4 described in FIG.

[0063] Figure 5 is a graph showing changes in the airbag pressure during specific application of the pelvic floor muscle elasticity assessment system of the present invention;

[0064] Reference numerals:

[0065] Pelvic floor muscle elasticity assessment system 1000;

[0066] Airbag 10;

[0067] Inflating device 20;

[0068] Micro air pump 201;

[0069] Solenoid valve 202;

[0070] Air flow controller 203;

[0071] Pressure detection device 30;

[0072] Control and processing unit 40;

[0073] Airbag no-load curve generating module 401;

[0074] Pelvic floor muscle elasticity assessment module 402;

[0075] Storage module 403;

[0076] microprocessor 404;

[0077] Display device 50;

[0078] Reverse pressure increment upper limit calculation module 60;

[0079] Reverse pressure increment lower limit calculation module 70;

[0080] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0081] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings. The same or similar reference numerals throughout the specification represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0082] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings of the specification, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0084] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0085] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0086] The pelvic floor muscle elasticity assessment system 1000 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0087] Reference Figure 1 As shown, a pelvic floor muscle elasticity assessment system 1000 according to an embodiment of the present invention includes:

[0088] The airbag 10 is used to be placed in the lower part of the vagina to contact the pelvic floor muscles;

[0089] Inflating device 20; the inflating device 20 is connected to the airbag 10 and is used to provide pulsed inflation to the airbag 10, that is, to provide a preset amount of air to the airbag 10 for each pulse inflation;

[0090] The pressure detection device 30 is connected to the airbag 10 and is used to detect the pressure value inside the airbag 10, that is, to detect the pressure value inside the airbag 10 each time the airbag 10 is pulse-inflated with a preset amount of air;

[0091] a control and processing unit 40 , the control and processing unit 40 being connected to the inflation device 20 and the pressure detection device 30 ;

[0092] The control and processing unit 40 includes an airbag no-load curve generation module 401 and a pelvic floor muscle elasticity assessment module 402 connected to each other:

[0093] In the no-load state, the airbag no-load curve generation module 401 is used to control the inflation device 20 to perform pulsed inflation on the airbag 10, and the air volume of each pulse inflation is a fixed value ΔV; the airbag no-load curve generation module 401 controls the inflation device 20 to adjust the inflation volume of the airbag 10 to change its diameter, and uses the pressure detection device 30 to obtain pressure values ​​corresponding to different diameters of the airbag 10 as control points. Based on uniform node vectors and zero-radix B-spline functions, the no-load airbag pressure curve is calculated using multiple control points.

[0094] The pelvic floor muscle elasticity assessment module 402 is used to control the inflation device 20 to re-inflate the deflated airbag 10 placed at the location of the pelvic floor muscle in the lower vagina in a pulsed manner, obtain the pressure value of each control point in the airbag 10 through the pressure detection device 30, calculate the reverse pressure increment ΔP generated by the pelvic floor muscle at each control point in combination with the no-load airbag pressure curve, and evaluate the pelvic floor muscle elasticity based on the reverse pressure increment ΔP.

[0095] The reverse pressure increment ΔP generated by the pelvic floor muscles at each control point=the pressure value of the corresponding control point-the no-load pressure value of the airbag 10 at the corresponding control point.

[0096] Based on the above, it is clear that when this application is implemented, it is mainly used as a pelvic floor muscle elasticity assessment system 1000.

[0097] Specific, contrast Figure 2 As shown, when applying this application, the application is connected according to the above structure. The operation process of this application is as follows:

[0098] S1. First, in an unloaded state, control the inflation device 20 to perform pulse inflation into the airbag 10, and the air volume of each pulse inflation is a fixed value ΔV;

[0099] S2, then controlling the inflation device 20 to adjust the inflation amount of the airbag 10 to change its diameter, and obtaining pressure values ​​corresponding to different diameters of the airbag 10 through the pressure detection device 30 as control points;

[0100] S3, based on the uniform node vector and the zero-base B-spline function, using the plurality of control points to calculate and generate an empty airbag pressure curve;

[0101] Specifically, the control Figure 3 and Figure 5 As shown, the S3 includes:

[0102] S31, constructing a uniform node vector with the diameter change of the airbag 10 evenly spaced as a node

[0103] S32. Based on the uniform node vector, interpolate the plurality of control points using a zero-radix B-spline function to generate a continuous no-load airbag pressure curve;

[0104] S4. During the evaluation, the inflation device 20 is controlled to re-inflate the deflated airbag 10 placed in the lower part of the vagina in a pulsed manner, the pressure value of each control point in the airbag 10 is obtained through the pressure detection device 30, and the reverse pressure increment ΔP generated by the pelvic floor muscle at each control point is calculated in combination with the no-load airbag pressure curve, and the elasticity of the pelvic floor muscle is evaluated based on the reverse pressure increment ΔP.

[0105] Specifically, the control Figure 4 and Figure 5 As shown, the S4 includes:

[0106] S41, during the evaluation, controlling the inflation device 20 to re-inflate the deflated airbag 10 placed in the lower part of the vagina in a pulsed manner;

[0107] S42, obtaining the pressure value of each control point in the airbag 10 through the pressure detection device 30;

[0108] S43, subtracting the pressure value of each control point obtained during the evaluation from the no-load pressure value of the airbag 10 at the corresponding diameter of the no-load airbag pressure curve to obtain a reverse pressure increment ΔP generated by the pelvic floor muscle at each control point;

[0109] S44. Evaluate the elasticity of the pelvic floor muscles based on the magnitude of the reverse pressure increment ΔP or the slope of the reverse pressure increment ΔP changing with the diameter to determine the elasticity level of the pelvic floor muscles.

[0110] For the above, it is obvious that the present application will have the following technical effects:

[0111] On the one hand, the interference can be better excluded, the detection and evaluation accuracy is high, the no-load airbag pressure curve is calculated by using a plurality of control points through the B-spline function, the no-load calibration is carried out on the airbag 10, the inherent pressure of the airbag 10 in different inflation states can be accurately deducted, the reverse pressure increment AP generated by the pelvic floor muscle of each control point calculated is only reflected the pressure increment generated by the pelvic floor muscle, the interference of the detection tool itself is effectively excluded, and the evaluation accuracy is improved.

[0112] On the other hand, the operation is objective and has good repeatability, the pulse quantitative inflation (ΔV is fixed) and automatic data processing are realized through the control and processing unit 40, the human operation error is reduced, the evaluation process is more objective, and the result has good repeatability.

[0113] Further, the above optimization design makes the whole application have strong practicability and good use effect, the airbag 10 itself interference is excluded through accurate calibration, the evaluation accuracy and objectivity are improved, and the application can be better applied to the clinical rehabilitation evaluation of pelvic floor dysfunction.

[0114] Further, in specific implementation, according to one embodiment of the present application, the inflation device 20 comprises a micro air pump 201, an electromagnetic valve 202 and an air flow controller 203 connected in sequence, and the micro air pump 201, the electromagnetic valve 202 and the air flow controller 203 are connected to the control and processing unit 40; the airbag 10 is connected to the air flow controller 203.

[0115] The micro air pump 201 is used to provide air source; the electromagnetic valve 202 is used to control the on-off of inflation; and the air flow controller 203 is used to accurately control the air volume ΔV of each pulse inflation.

[0116] By providing the micro air pump 201, the air source can be continuously provided, so that the application is convenient and convenient to use; by providing the electromagnetic valve 202, the on-off of inflation can be controlled, so that the application is flexible and controllable; and by providing the air flow controller 203, the air volume ΔV of each pulse inflation can be accurately controlled, so that the application is stable and reliable to use.

[0117] Further, in specific implementation, according to one embodiment of the present application, the pressure detection device 30 is preferably a pressure sensor; the controlled end of the pressure sensor is connected to the control and processing unit 40, the detection end is in communication with the inside of the airbag 10, is used for real-time acquisition of the pressure data in the airbag 10, and is transmitted to the control and processing unit 40.

[0118] Based on this, in this application, Figure 1 As shown, according to one embodiment of the present invention, the control and processing unit 40 further includes a storage module 403 and a microprocessor 404; the airbag no-load curve generation module 401, the pelvic floor muscle elasticity assessment module 402 and the storage module 403 are all connected to the microprocessor 404;

[0119] The storage module 403 is used to store the control point data, the empty airbag pressure curve and the evaluation program; the microprocessor 404 is used to execute the evaluation program to realize the control of the inflation device 20 and the processing of pressure data.

[0120] Based on this, the micro air pump 201 , the solenoid valve 202 , the air flow controller 203 and the pressure sensor described in this application are all connected to the microprocessor 404 .

[0121] Thus, by providing the control and processing unit 40 of the above structure, it is possible to accurately and objectively evaluate the clinical rehabilitation of pelvic floor dysfunction.

[0122] In addition, in this technical solution, continue to control Figure 1 As shown, according to one embodiment of the present invention, the present application further includes a display device 50 connected to the microprocessor 404 of the control and processing unit 40;

[0123] The display device 50 is used to display the evaluation results, the no-load airbag pressure curve and the real-time pressure data of the airbag 10.

[0124] From this, it can be clearly seen that by setting up the display device 50 for displaying the evaluation results, the no-load airbag pressure curve and the real-time pressure data of the airbag 10, the present application can make the pelvic floor muscle elasticity detection and evaluation process and evaluation results very intuitive and efficient, which is convenient for the operator to quickly judge the elasticity status of the pelvic floor muscle, and is suitable for scenarios such as clinical pelvic floor muscle rehabilitation evaluation, making it highly practical.

[0125] Furthermore, in a specific implementation, according to one embodiment of the present invention, the control points include P0, P1, P2, ...P n (Total n+1)

[0126] The basis function of the zero-base B-spline function is defined by the Cox-de Boor recursive formula, specifically:

[0127] Knot Vector U = {u0, u1, ..., u m}(a total of m+1 nodes)

[0128] Degree p (usually p≤n)

[0129] The numerical equation of the B-spline curve is:

[0130]

[0131] in

[0132] ·N i，p (u) is the B-spline Bassis Function

[0133] ·u is a parameter, ranging from [u p ,u m-p ]

[0134] Based on this, in this application, according to one embodiment of the present invention, the node intervals of the node vector are equal, the number of nodes is related to the number of control points and the cardinality, and they satisfy the following conditions with each other: m=n+p+1, where n is the number of control points minus 1, and p=0 is the cardinality.

[0135] In this regard, it is clear that according to one embodiment of the present invention, the larger the reverse pressure increment ΔP is, the stronger the elasticity of the pelvic floor muscles is; and the smaller the reverse pressure increment ΔP is, the weaker the elasticity of the pelvic floor muscles is.

[0136] At the same time, according to one embodiment of the present invention, the present application further includes a reverse pressure increment upper limit calculation module 60 and a reverse pressure increment lower limit calculation module 70 connected to the microprocessor 404;

[0137] The reverse pressure increment upper limit calculation module 60 is used to calculate the pelvic floor muscle reverse pressure increment upper limit UPLΔP of the corresponding different groups using a statistical method according to the sample size of different groups;

[0138] Furthermore, the reverse pressure increment lower limit calculation module 70 is used to calculate the pelvic floor muscle reverse pressure increment lower limit values ​​LCLΔP of the corresponding different groups of people according to the sample sizes of the different groups using a statistical method.

[0139] Based on this, in this application, according to one embodiment of the present invention, when the obtained reverse pressure increment ΔP≥UPLΔP, it means that the current patient's pelvic floor muscle elasticity is too strong; when the obtained reverse pressure increment ΔP≤LCLΔP, it means that the current patient's pelvic floor muscle elasticity is insufficient.

[0140] Other embodiments and the like are not described here as examples.

[0141] In summary, the pelvic floor muscle elasticity assessment system 1000 provided in this application, when implemented, has the following technical effects:

[0142] First, it can effectively eliminate interference, making the detection and evaluation accuracy high. By using the B-spline function to calculate and generate an empty airbag pressure curve using multiple control points, the airbag 10 is calibrated without load, and the inherent pressure of the airbag 10 itself under different expansion states can be accurately deducted, so that the calculated reverse pressure increment ΔP generated by the pelvic floor muscle at each control point only reflects the pressure increment generated by the pelvic floor muscle, effectively eliminating the interference of the detection tool itself and improving the evaluation accuracy.

[0143] Second, the operation is objective and repeatable. By setting the control and processing unit 40 to realize pulsed quantitative inflation (ΔV is fixed) and automatic data processing, human operation errors are reduced, making the evaluation process more objective and the results repeatable.

[0144] Third, by setting up the display device 50 for displaying the evaluation results, the no-load airbag pressure curve and the real-time pressure data of the airbag 10, the present application can make the pelvic floor muscle elasticity detection and evaluation process and evaluation results very intuitive and efficient, which is convenient for the operator to quickly judge the elasticity status of the pelvic floor muscle, and is suitable for scenarios such as clinical pelvic floor muscle rehabilitation evaluation, making it highly practical.

[0145] Fourthly, the application of this application is applicable whether in the late pregnancy, delivery period or postpartum recovery period, so that the pelvic floor muscle elasticity assessment is not limited and the operation is convenient.

[0146] Furthermore, the pelvic floor muscle elasticity assessment system 1000 provided by this application is indeed extremely practical and has excellent performance, which means that this application will inevitably have great market promotion value, and this application will inevitably be very popular and will be effectively popularized.

[0147] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0148] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A pelvic floor muscle elasticity assessment system, characterized in that: include: airbags; The airbag is used to be placed in the lower part of the vagina to contact the pelvic floor muscles; Inflatable device; The inflation device is connected to the airbag and is used to provide pulsed inflation to the airbag; A pressure detection device; the pressure detection device is connected to the airbag and is used to detect the pressure value in the airbag; a control and processing unit connected to the inflation device and the pressure detection device; The control and processing unit includes: An airbag no-load curve generation module; in an unloaded state, the airbag no-load curve generation module is configured to control the inflation device to pulse-inflate the airbag, with the air volume of each pulse inflation being a fixed value ΔV. The airbag no-load curve generation module controls the inflation device to adjust the airbag's inflation volume to change its diameter, and utilizes the pressure detection device to obtain pressure values ​​corresponding to different airbag diameters as control points. Based on a uniform node vector and a zero-radix B-spline function, the module calculates and generates an unloaded airbag pressure curve using multiple of these control points. Pelvic floor muscle elasticity assessment module; the pelvic floor muscle elasticity assessment module is used to control the inflation device to re-inflate the deflated airbag placed in the lower part of the vagina in a pulsed manner, obtain the pressure value of each control point in the airbag through the pressure detection device, calculate the reverse pressure increment ΔP generated by the pelvic floor muscle at each control point in combination with the no-load airbag pressure curve, and evaluate the pelvic floor muscle elasticity based on the reverse pressure increment ΔP.

2. The pelvic floor muscle elasticity assessment system according to claim 1, characterized in that: The inflation device includes a micro air pump, a solenoid valve and an air flow controller connected in sequence; The micro air pump is used to provide an air source; the solenoid valve is used to control the on and off of the inflation; and the air flow controller is used to accurately control the air volume ΔV of each pulse inflation.

3. The pelvic floor muscle elasticity assessment system according to claim 1, characterized in that: The pressure detection device is a pressure sensor; the detection end of the pressure sensor is connected to the inside of the airbag, and is used to collect pressure data in the airbag in real time and transmit it to the control and processing unit.

4. The pelvic floor muscle elasticity assessment system according to claim 1, characterized in that: The control and processing unit further includes a storage module and a microprocessor; the airbag no-load curve generation module, the pelvic floor muscle elasticity assessment module and the storage module are all connected to the microprocessor; The storage module is used to store the control point data, the empty airbag pressure curve and the evaluation program; the microprocessor is used to execute the evaluation program to realize the control of the inflation device and the processing of pressure data.

5. The pelvic floor muscle elasticity assessment system according to claim 1, characterized in that: Also included is a display device connected to the microprocessor; The display device is used to display the evaluation results, the no-load airbag pressure curve and the real-time airbag pressure data.

6. The pelvic floor muscle elasticity assessment system according to claim 1, characterized in that: The control points include P0, P1, P2, ...P n (Total n+1) The basis function of the zero-base B-spline function is defined by the Cox-de Boor recursive formula, specifically: Knot Vector U = {u0, u1, ..., u m }(a total of m+1 nodes) Degree p (usually p≤n) Parametric equation of the B-spline curve: in: ·N i,p (u) is the B-spline basis function ·u is a parameter, ranging from [u p ,u m-p ].

7. The pelvic floor muscle elasticity assessment system according to claim 6, characterized in that: The node intervals of the node vector are equal, and the number of nodes is related to the number of control points and the cardinality, and they satisfy the following conditions: m=n+p+1, where n is the number of control points minus 1, and p=0 is the cardinality.

8. The pelvic floor muscle elasticity assessment system according to claim 6, characterized in that: The larger the reverse pressure increment ΔP is, the stronger the elasticity of the pelvic floor muscles is; and the smaller the reverse pressure increment ΔP is, the weaker the elasticity of the pelvic floor muscles is.

9. The pelvic floor muscle elasticity assessment system according to claim 8, characterized in that: It also includes a reverse pressure increment upper limit calculation module and a reverse pressure increment lower limit calculation module connected to the microprocessor; The reverse pressure increment upper limit calculation module is used to calculate the pelvic floor muscle reverse pressure increment upper limit value UPLΔP of the corresponding different groups according to the sample size of different groups using a statistical method; The reverse pressure increment lower limit calculation module is used to calculate the pelvic floor muscle reverse pressure increment lower limit values ​​LCLΔP of the corresponding different groups according to the sample size of different groups using a statistical method.

10. The pelvic floor muscle elasticity assessment system according to claim 9, characterized in that: When the reverse pressure increment ΔP ≥ UPLΔP, it indicates that the pelvic floor muscles are too elastic; when the reverse pressure increment ΔP ≤ LCLΔP, it indicates that the pelvic floor muscles are not elastic enough.

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