CN115721311A

CN115721311A - Female pelvic floor muscle pressure detection method

Info

Publication number: CN115721311A
Application number: CN202211505117.6A
Authority: CN
Inventors: 原晶; 谢晗; 曹嵘; 谢胜昔; 夏明昌; 王宇杰
Original assignee: Vtrump Tech Shanghai Co ltd
Current assignee: Vtrump Tech Shanghai Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2023-03-03
Also published as: CN113261960A; CN113261960B

Abstract

The present invention provides a female pelvic floor muscle pressure detection method, comprising the steps of (a) placing at least one thin film pressure sensor in a female user's body at a position such that pressure of the user's pelvic floor muscles can be transmitted to the thin film pressure sensor, wherein the thin film pressure sensor is electrically connected to a multivibrator, and the thin film pressure sensor forms a feedback resistance of the multivibrator, wherein the multivibrator is configured such that an oscillation frequency of the multivibrator corresponds to a pressure to which the thin film pressure sensor is subjected; and (B) detecting the oscillation frequency of the multivibrator, and obtaining the pressure value applied to the film pressure sensor according to the corresponding relation between the oscillation frequency of the multivibrator and the pressure applied to the film pressure sensor.

Description

Female pelvic floor muscle pressure detection method

The patent application of the invention is a divisional application of an invention patent application with the application number of 202110309924.X and the application date of 2021, 03 and 23.

Technical Field

The invention relates to the technical field of medical care, in particular to a female pelvic floor muscle pressure detection method.

Background

Female pelvic floor muscles refer to the group of muscles that close the pelvic floor. The muscle groups that make up the pelvic floor muscles surround the organs such as urethra, bladder, uterus, rectum, etc., support the pelvic and abdominal organs, and maintain them in their normal position for their function. Thus, pelvic floor muscles are involved in bladder, bowel and sexual function. Pelvic floor muscles can be damaged by infectious disease, inflammation, trauma, or excessive laceration, such as that resulting from fertility. After the muscle groups forming the pelvic floor muscles are damaged, the elasticity is deteriorated, and related organs can not be maintained at normal positions, so that corresponding dysfunction, such as difficult excretion, cystitis, pelvic floor organ prolapse, incongruous sexual life, chronic discomfort and the like, can occur.

Clinically, to determine the extent of pelvic floor muscle damage or post-treatment recovery in women, the ability of the female pelvic floor muscles to contract needs to be tested to facilitate evaluation and determination of treatment regimens by physicians. In addition, for patients whose pelvic floor muscles are relaxed for childbearing or age reasons, it is also necessary to detect the contractility of the pelvic floor muscles when exercising the pelvic floor muscles using the pelvic floor muscle exercise device in order to understand the recovery of the pelvic floor muscles and to exercise the pelvic floor muscles in a targeted manner. Generally, the ability of female pelvic muscles to contract is detected by a pressure sensor placed at a suitable location within the body. For example, the diaphragm pressure sensor may be placed on a carrier and then placed in position within a female anatomy, and the pressure experienced by the diaphragm pressure sensor may be detected to determine the contractile capacity of the female pelvic floor muscles. Common carriers for providing thin film pressure sensing include kegel balls or vibrating implements for female pelvic floor muscle exercises, and the like. In this way, the contractile capacity of female pelvic floor muscles can be detected in real time.

Uk patent application No. 1111532.6 teaches an electronic position sensor responsive to compression or positioning or movement of the device itself, which can be inserted into the pelvic cavity and detect and respond to movement of the wearer and feedback device. However, the electronic device provided by this patent has a number of drawbacks: first, the electronic device needs to first detect the user's feedback device through the sensor and then remind the user to assume a better posture through its vibration motor. Therefore, the electronic device disclosed in this patent provides only one alert and does not directly detect the contractility of the pelvic floor muscles and provide a direct detection result to the user. Secondly, the electronic device can only strengthen the pelvic muscles of the patient when the patient successfully contracts the corresponding muscles. Therefore, the electronic device functions only through vibration therapy of its vibration motor, and it cannot guide and help the user to exercise their pelvic floor muscles by providing the user with the result of detection of the pelvic floor muscle contraction force. Finally, the electronic device can only obtain a blurred and non-quantitative gesture signal.

Chinese patent application No. CN201410751835.0 provides a female pelvic floor muscle pressure detecting device, wherein the female pelvic floor muscle pressure detecting device can detect the contractility of pelvic floor muscles of a user through a thin film pressure sensor thereof and help the user to exercise the pelvic floor muscles according to the detection result, wherein the thin film pressure sensor adopted by the female pelvic floor muscle pressure detecting device is a resistance type sensor, the thin film pressure sensor is attached to a carrier and placed at a proper position in a human body, the output resistance thereof is reduced along with the increase of the surface pressure applied to the thin film pressure sensor, the thin film pressure sensor is connected with an analog-to-digital conversion module through a voltage amplifying circuit, and the pressure applied to the surface of the thin film pressure sensor is detected by detecting the change of the resistance of the thin film pressure sensor and the resistance-pressure relationship of the thin film pressure sensor. However, although the resistance value of the thin film pressure sensor changes monotonously with a change in the pressure to which it is subjected, the correspondence relationship between the resistance value of the thin film pressure sensor and the pressure does not correspond linearly but corresponds nonlinearly. In other words, when the pressure applied to the film pressure sensor is small, the resistance changes largely with the pressure change, and when the pressure applied to the film pressure sensor is large, the resistance changes relatively little with the pressure change. Therefore, when the pressure applied to the film pressure sensor is small, the resistance changes too much with the pressure change, and when the pressure applied to the film pressure sensor is large, the resistance changes too little with the pressure change, so that whether the pressure applied to the film pressure sensor is too small or too large, the pressure applied to the film pressure sensor is detected by detecting the resistance of the film pressure sensor, and accurate detection is difficult to achieve. In addition, when the pressure applied to the film pressure sensor is small, the resistance changes too much with the pressure change, and when the pressure applied to the film pressure sensor is large, the resistance changes too little with the pressure change, which also results in a small pressure range that can be detected when the pressure applied to the film pressure sensor is detected by detecting the resistance of the film pressure sensor.

Disclosure of Invention

The invention has the main advantage of providing the female pelvic floor muscle pressure detection method, wherein the female pelvic floor muscle pressure detection method converts a resistance signal of the thin film pressure sensor for detecting the female pelvic floor muscle pressure into a corresponding oscillation frequency signal of the oscillator, so that the pressure applied to the thin film pressure sensor can be obtained by detecting the oscillation frequency of the multivibrator. Accordingly, the female pelvic muscle pressure detection method can overcome the defect that the pressure applied to the thin film pressure sensor is detected by detecting the resistance of the thin film pressure sensor.

Another advantage of the present invention is to provide a method for female pelvic floor muscle pressure detection, wherein the method for female pelvic floor muscle pressure detection of the present invention includes coupling a thin film pressure sensor for detecting female pelvic floor muscle pressure to a multivibrator and configuring the multivibrator such that an oscillation frequency thereof monotonously changes (monotonously increases or decreases) with a decrease in resistance of the thin film pressure sensor, such that the oscillation frequency of the multivibrator corresponds to a pressure to which the thin film pressure sensor is subjected. It is understood that the resistance of the thin film pressure sensor changes monotonically (increases or decreases monotonically) with changes in the pressure to which it is subjected.

Another advantage of the present invention is to provide a method for detecting female pelvic floor muscle pressure, wherein the method for detecting female pelvic floor muscle pressure includes connecting a thin film pressure sensor for detecting female pelvic floor muscle pressure to a multivibrator and configuring the multivibrator such that an oscillation frequency thereof monotonically increases with a decrease in resistance of the thin film pressure sensor and such that the oscillation frequency of the multivibrator has a substantially linear relationship with pressure received by the thin film pressure sensor, thereby expanding an upper limit and a lower limit of a detection range of female pelvic floor muscle pressure and enhancing accuracy of female pelvic floor muscle pressure detection. Accordingly, the female pelvic floor muscle pressure detection method can detect a larger pressure value range and smaller pressure value changes.

Another advantage of the present invention is to provide a female pelvic floor muscle pressure detecting method, in which the female pelvic floor muscle pressure detecting method of the present invention can determine a pelvic floor muscle pressure (or contraction force) to which the thin film pressure sensor is subjected, corresponding to an oscillation frequency of the multivibrator, through the oscillation frequency of the multivibrator, so that the pressure can be visually provided to a user, thereby allowing the user to conveniently obtain the pressure of the detected pelvic floor muscle.

Other objects and features of the present invention will become more fully apparent from the following detailed description and appended claims, taken in conjunction with the accompanying drawings, wherein like reference numerals refer to like parts throughout.

To achieve at least one of the above advantages or objects of the present invention, the present invention provides a female pelvic floor muscle pressure detection method, comprising:

(A) Placing at least one thin film pressure sensor in a female user's body at a location such that pressure of the user's pelvic floor muscles can be transmitted to the thin film pressure sensor, wherein the thin film pressure sensor is electrically connected to a multivibrator and the thin film pressure sensor forms a feedback resistance of the multivibrator, wherein the multivibrator is configured such that the oscillation frequency of the multivibrator corresponds to the pressure to which the thin film pressure sensor is subjected; and

(B) And detecting the oscillation frequency of the multivibrator, and acquiring the pressure value applied to the film pressure sensor according to the corresponding relation between the oscillation frequency of the multivibrator and the pressure applied to the film pressure sensor.

In accordance with other aspects of the present invention, the present invention is still further directed to a method of configuring a multivibrator suitable for detecting female pelvic floor muscle pressure, comprising the steps of:

(U) electrically connecting the multivibrator to a thin film pressure sensor for detecting female pelvic floor muscle pressure, such that the thin film pressure sensor forms a feedback resistance of the multivibrator; and

(V) configuring the multivibrator so that its oscillation frequency changes monotonically as the resistance of the thin-film pressure sensor increases.

The above and other advantages of the invention will be more fully apparent from the following description and drawings.

The above and other advantages and features of the present invention will be more fully apparent from the following detailed description of the invention, the accompanying drawings and the claims.

Drawings

FIG. 1 shows resistance-pressure curves of an exemplary thin film pressure sensor for detecting female pelvic floor muscle pressure, in accordance with embodiments of the present invention.

FIG. 2A is a schematic diagram of an exemplary multivibrator for detecting pressure of female pelvic muscles according to an embodiment of the present invention.

FIG. 2B is a graph of resistance versus oscillation frequency for the exemplary multivibrator for detecting female pelvic floor muscle pressure, in accordance with embodiments of the present invention, as described above.

Fig. 3A shows the resistance-oscillation frequency variation curve of the multivibrator for detecting female pelvic floor muscle pressure and the resistance-pressure variation curve of the thin film pressure sensor for detecting female pelvic floor muscle pressure, which are aligned with each other in the same coordinate system, after being properly translated, according to the embodiment of the present invention.

FIG. 3B shows the relationship between the oscillation frequency of the multivibrator and the pressure experienced by the thin film pressure sensor for detecting female pelvic floor muscle pressure according to the embodiment of the present invention.

FIG. 4A is a schematic diagram of a preferred implementation of the multivibrator for detecting female pelvic floor muscle pressure according to the embodiment of the invention.

FIG. 4B shows the above-described correspondence between the preferred implementation oscillation frequency of the multivibrator for detecting female pelvic floor muscle pressure and the pressure experienced by the thin film pressure sensor according to an embodiment of the present invention, wherein the graph shows that the preferred implementation oscillation frequency of the multivibrator and the pressure experienced by the thin film pressure sensor are more linear.

FIG. 5A is a schematic diagram of another exemplary multivibrator for detecting female pelvic floor muscle pressure according to an embodiment of the present invention.

FIG. 5B shows the relationship between the oscillation frequency of the multivibrator and the pressure experienced by the thin film pressure sensor for detecting female pelvic floor muscle pressure according to the embodiment of the present invention shown in FIG. 5A.

FIG. 6A is a schematic diagram of the preferred implementation of the exemplary multivibrator for detecting female pelvic floor muscle pressure according to the embodiment of the present invention shown in FIG. 5A.

FIG. 6B shows the above-described correspondence between the preferred implementation oscillation frequency of the multivibrator for detecting female pelvic floor muscle pressure and the pressure experienced by the thin film pressure sensor according to an embodiment of the present invention, wherein the graph shows that the preferred implementation oscillation frequency of the multivibrator and the pressure experienced by the thin film pressure sensor are more linear.

FIG. 7 is a schematic diagram of another exemplary multivibrator for detecting female pelvic floor muscle pressure according to the embodiment of the present invention.

FIG. 8 shows the relationship between the oscillation frequency of the multivibrator and the pressure experienced by the thin film pressure sensor for detecting female pelvic floor muscle pressure according to the embodiment of the present invention shown in FIG. 7.

FIG. 9 is a flowchart of the method for detecting pelvic muscle pressure in a female patient according to the embodiment of the invention.

FIG. 10 is a flow chart of a method for configuring the multivibrator according to the embodiment of the invention.

FIG. 11 is a schematic diagram of an exemplary female pelvic muscle pressure detection system according to an embodiment of the invention.

Fig. 12 shows an exemplary signal transmission between the aforementioned exemplary female pelvic muscle pressure detection system and a client according to an embodiment of the present invention.

Detailed Description

The following description is provided to enable any person skilled in the art to practice the invention. Other obvious substitutions, modifications and variations will occur to those skilled in the art. Accordingly, the scope of protection of the present invention should not be limited by the exemplary embodiments described herein.

It will be understood by those of ordinary skill in the art that, unless specifically indicated herein, the terms "a" and "an" should be interpreted as meaning that "at least one" or "one or more" may mean that, in one embodiment, one element may be present in one number, and in another embodiment, the element may be present in multiple numbers.

It will be understood by those of ordinary skill in the art that unless otherwise indicated herein, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic sense to describe the invention as defined by the appended claims, and are not intended to imply or imply that the referenced devices or elements must have a particular orientation or position. Accordingly, the above terms should not be construed as limiting the present invention.

Description of the drawings fig. 1 shows resistance-pressure (value) change curves of an exemplary thin film pressure sensor for detecting female pelvic floor muscle pressure according to an embodiment of the present invention. As shown in fig. 1 of the accompanying drawings, most of the existing thin film pressure sensors for detecting the pressure of female pelvic floor muscles have monotonically decreasing resistance with increasing pressure, but the resistance of the thin film pressure sensor changes nonlinearly with increasing pressure, so that when the thin film pressure sensor is subjected to a smaller pressure, the resistance changes greatly with the changing pressure, and when the pressure is subjected to a larger pressure, the resistance changes relatively slightly with the changing pressure. Accordingly, when the pressure to which the film pressure sensor is subjected is small, the resistance changes excessively with the change in pressure, and when the pressure to which the film pressure sensor is subjected is large, the resistance changes excessively with the change in pressure, so that it is difficult to detect with high accuracy by detecting the resistance of the film pressure sensor and detecting the pressure to which the film pressure sensor is subjected using the detected resistance of the film pressure sensor, regardless of whether the pressure to which the film pressure sensor is subjected is excessively small or large. In addition, when the pressure applied to the film pressure sensor is small, the resistance changes too much with the pressure change, and when the pressure applied to the film pressure sensor is large, the resistance changes too little with the pressure change, which also results in a small pressure range that can be detected when the pressure applied to the film pressure sensor is detected by detecting the resistance of the film pressure sensor. Therefore, the conventional pressure detection method for determining the pressure applied to the film pressure sensor by detecting the resistance of the film pressure sensor cannot accurately detect the pressure applied to the film pressure sensor, and the pressure range which can be detected by the conventional pressure detection method is small.

In order to improve the detection precision of the pressure applied to the film pressure sensor for detecting the pressure of the female pelvic floor muscles and increase the pressure detection range as much as possible, the invention creatively develops a new method for detecting the pressure applied to the film pressure sensor: the pressure applied to the membrane pressure sensor is determined by connecting the membrane pressure sensor to a multivibrator, configuring the multivibrator such that the oscillation frequency of the multivibrator corresponds to the pressure applied to the membrane pressure sensor, and then detecting the oscillation frequency of the multivibrator. Correspondingly, when the female pelvic floor muscle pressure detection system is used for detecting the female pelvic floor muscle pressure, the pressure borne by the film pressure sensor is detected, the pressure borne by the film pressure sensor is not determined by detecting the resistance of the film pressure sensor and the resistance of the film pressure sensor, but is determined by detecting the oscillation frequency of the multivibrator. The female pelvic floor muscle pressure detection system can obviously improve the detection precision of the pressure borne by the thin film pressure sensor and enlarge the pressure detection range of the thin film pressure sensor.

It is noted that exemplary multivibrators for detecting female pelvic floor muscle pressure according to embodiments of the present invention are preconfigured. First, when a thin film pressure sensor for detecting female pelvic muscle pressure according to an exemplary embodiment of the present invention is subjected to pressures of different magnitudes, the resistance (magnitude) of the thin film pressure sensor is determined, and the change of the resistance of the thin film pressure sensor with the change of the magnitude of the pressure is determined, so that the resistance-pressure correspondence of the thin film pressure sensor is determined and a resistance-pressure change curve of the thin film pressure sensor is obtained. As shown in fig. 1 of the drawings, according to an exemplary resistance-pressure variation curve of a thin film pressure sensor for detecting female pelvic muscle pressure according to an embodiment of the present invention, the thin film pressure sensor has a resistance which monotonically decreases with an increase in pressure, and a resistance value which is non-linear with a change in pressure. It is understood that the resistance-pressure variation curve of the exemplary thin film pressure sensor for detecting female pelvic muscle pressure according to the embodiments of the present invention may vary depending on the model, the material of manufacture, the manufacturing process, and even the manufacturer. Accordingly, FIG. 1 of the drawings shows resistance-pressure curves for an exemplary thin film pressure sensor for detecting female pelvic muscle pressure, in accordance with embodiments of the present invention. When other types or classes of thin film pressure sensors are used, there may be a corresponding change in the resistance-pressure curve. Then, the multivibrator is configured according to the resistance-pressure variation curve of the thin film pressure sensor for detecting female pelvic floor muscle pressure according to the above exemplary embodiment of the present invention, so that the oscillation frequency of the multivibrator monotonously changes with the magnitude of the resistance of the thin film pressure sensor, thereby making the pressure applied to the thin film pressure sensor correspond to the oscillation frequency of the multivibrator. Preferably, the multivibrator is configured such that the oscillation frequency of the multivibrator monotonically decreases as the resistance of the thin-film pressure sensor increases. More preferably, the equation corresponding to the resistance-oscillation frequency variation curve of the multivibrator and the equation corresponding to the resistance-pressure variation curve of the thin film pressure sensor are a pair of generating equations. Accordingly, when the exemplary multivibrator for detecting the pressure of the pelvic floor muscles according to the embodiment of the present invention is configured such that the resistance-oscillation frequency variation curve of the multivibrator and the resistance-pressure variation curve of the thin film pressure sensor are positioned in the same quadrant and the resistance-oscillation frequency variation curve of the multivibrator is shifted by an appropriate distance to "coincide" with the resistance-pressure variation curve of the thin film pressure sensor, the oscillation frequency of the multivibrator has a linear relationship with the pressure to which the thin film pressure sensor is subjected.

FIG. 11 of the drawings illustrates an exemplary female pelvic muscle pressure detection system according to embodiments of the present invention, which includes at least one thin film pressure sensor 20 and at least one multivibrator 30, wherein the thin film pressure sensor 20 and the multivibrator 30 can be disposed on a carrier 10, wherein the thin film pressure sensor 20 is electrically connected to the multivibrator 30, and the thin film pressure sensor 20 forms a feedback resistance of the multivibrator 30. Preferably, the multivibrator 30 is configured such that the oscillation frequency of the multivibrator 30 corresponds to the pressure to which the membrane pressure sensor 20 is subjected, so that a user or an operator can obtain the pressure value to which the membrane pressure sensor 20 is subjected according to the correspondence between the oscillation frequency of the multivibrator 30 and the pressure to which the membrane pressure sensor 20 is subjected by merely detecting (or obtaining) the oscillation frequency of the multivibrator 30. Therefore, the exemplary female pelvic muscle pressure detection system according to the embodiment of the invention can overcome the existing defect of detecting the pressure applied to the thin film pressure sensor by detecting the resistance of the thin film pressure sensor. Preferably, the multivibrator 30 is configured such that the change in the oscillation frequency thereof monotonously changes with the change in the resistance (magnitude) of the thin film pressure sensor 20. More preferably, the multivibrator 30 is configured such that its oscillation frequency monotonously becomes smaller with an increase in resistance of the thin film pressure sensor 20, and the resistance of the thin film pressure sensor 20 monotonously becomes smaller with an increase in pressure. Accordingly, when the pressure applied to the membrane pressure sensor 20 is relatively large, the oscillation frequency of the multivibrator 30 detected by the exemplary female pelvic muscle pressure detection system according to the embodiment of the present invention is also relatively large.

Figures 2A and 4A of the drawings illustrate an exemplary multivibrator 30 for detecting female pelvic muscle pressure, in accordance with an embodiment of the present invention, wherein the multivibrator 30 includes a first resistive element 31, a second resistive element 32, an operational amplifier 33, and a capacitive element 34, wherein one end of the first resistive element 31 is electrically connected to the non-inverting inputs of the second resistive element 32 and the operational amplifier 33, respectively, the other end of the first resistive element 31 is electrically connected to the second end 22 of the thin film pressure sensor 20 and the output of the operational amplifier 33, respectively, one end of the second resistive element 32 is grounded, the other end is electrically connected to the non-inverting input terminal of the operational amplifier 33 and the first resistive element 31, one end of the capacitive element 34 is grounded, the other end is electrically connected to the inverting input terminal of the operational amplifier 33 and the first end 21 of the thin film pressure sensor 20, the output terminal of the operational amplifier 33 is electrically connected to the second end 22 of the thin film pressure sensor 20 and the first resistive element 31, the inverting input terminal of the operational amplifier 33 is electrically connected to the first end 21 of the thin film pressure sensor 20 and the capacitive element 34, and the non-inverting input terminal of the operational amplifier 33 is electrically connected to the first resistive element 31 and the second resistive element 32. It will be appreciated that the first resistive element 31 and the second resistive element 32 of the exemplary multivibrator 30 of the female pelvic muscle pressure detection system according to embodiments of the present invention are each an electrical component having a resistance of a certain magnitude, which is made up of one or more components; the capacitive element 34 of the exemplary multivibrator 30 of the female pelvic floor pressure detection system according to embodiments of the present invention is an electrical component having a capacitance of a certain magnitude, which is made up of one or more components. Accordingly, there are various implementations of the exemplary multivibrator 30 for detecting female pelvic floor muscle pressure in accordance with embodiments of the present invention.

As shown in fig. 2A-3B of the drawings, when the first resistive element 31 and the second resistive element 32 of the multivibrator 30 are both single resistors and the capacitive element 34 is a single capacitor, the multivibrator 30 is configured such that the oscillation frequency F of the multivibrator 30 and the resistance Rsensor of the thin film pressure sensor 20 satisfy the following equation:

where C is the capacitance of the capacitive element 34 and R is ₁ Is the resistance, R, of the first resistive component 31 ₂ Is the resistance of the second resistive component 32. Accordingly, the resistance-oscillation frequency variation curve of the multivibrator 30 and the resistance-pressure variation curve of the thin film pressure sensor 20 for detecting the pressure of the female pelvic floor according to the embodiment of the present invention may coincide or approximately coincide. It is noted that the capacitive element 34 of the multivibrator 30 for detecting female pelvic muscle pressure according to the embodiment of the present invention has a capacitance value of 10pF-330uF. Repeated tests and experiments have found that the error caused by stray capacitance in the multivibrator 30 for detecting pelvic floor muscle pressure according to the exemplary embodiment of the present invention is hard to be reduced to a desired range when the capacitance of the capacitive element 34 is less than 10pF, and that the volume of the capacitive element 34 is too large to satisfy the requirement of the present invention for detecting pelvic floor muscle pressure when the capacitance of the capacitive element 34 is greater than 330uF. Preferably, the capacitance of the multivibrator 30 for detecting female pelvic floor muscle pressure according to an embodiment of the present invention is a COG or NPO ceramic capacitor to ensure the temperature stability of the female pelvic floor muscle pressure detection system of the present invention.

As shown in fig. 3A and 3B of the drawings, when the first resistive element 31 and the second resistive element 32 of the multivibrator 30 are both single resistors and the capacitive element 34 is a single capacitor, according to the resistance-oscillation frequency variation curve of the multivibrator 30 and the resistance-pressure variation curve of the thin film pressure sensor 20 for detecting the pressure of the female pelvic floor muscles according to the exemplary embodiment of the present invention, a "linear relationship" between the oscillation frequency of the multivibrator 30 and the pressure to which the thin film pressure sensor 20 is subjected can be obtained through calculation and further linear fitting:

where N is the pressure to which the film pressure sensor 20 is subjected, F is the oscillation frequency of the multivibrator 30 detected in real time, F is the oscillation frequency of the multivibrator 30 when the pressure to which the film pressure sensor 20 is subjected is zero, and K is a constant. It will be appreciated that the constant K is related to the membrane pressure sensor 20. It will be appreciated that the "linear relationship" between the oscillation frequency of the multivibrator 30 and the pressure experienced by the diaphragm pressure sensor 20 may also be obtained by other linear fits, such as a second order fit or a multiple order fit.

It should be noted that, as shown in fig. 2B of the drawings, when the first resistive element 31 and the second resistive element 32 of the multivibrator 30 are both single resistors and the capacitive element 34 is a single capacitor, the "coincidence" of the resistance-oscillation frequency variation curve of the multivibrator 30 and the resistance-pressure variation curve of the thin film pressure sensor 20 for detecting the female pelvic floor muscle pressure according to the exemplary embodiment of the present invention does not necessarily coincide completely, but is established in that the oscillation frequency of the multivibrator 30 for detecting the female pelvic floor muscle pressure according to the exemplary embodiment of the present invention is monotonically decreased as the resistance of the thin film pressure sensor 20 increases. The main reason is that the variation of the oscillation frequency of the multivibrator 30 for detecting the pressure of the female pelvic floor muscles according to the embodiment of the present invention is a simulation of the variation of the resistance of the thin film pressure sensor 20 according to the pressure variation, and the variation of the oscillation frequency of the multivibrator 30 is difficult to be completely consistent with the variation of the resistance of the thin film pressure sensor 20 according to the pressure variation, especially when the thin film pressure sensor 20 is subjected to a small pressure, the variation of the resistance according to the pressure variation is large, and when the pressure is subjected to a large pressure, the variation of the resistance according to the pressure variation is small. As shown in FIG. 3B of the drawings, accordingly, the "linear relationship" between the oscillation frequency of the multivibrator 30 and the pressure to which the thin film pressure sensor 20 is subjected for detecting the pressure of the pelvic floor muscles according to the exemplary embodiment of the present invention is calculated as the linear relationship. However, even so, by the configuration method of the multivibrator 30 of the present invention, it is possible for the user or operator to more accurately detect the female pelvic floor muscle pressure to which the thin film pressure sensor 20 is subjected through the combined use of the thin film pressure sensor 20 and the configured multivibrator 30 and to significantly increase the upper and lower limits of the female pelvic floor muscle pressure that can be detected by the thin film pressure sensor 20. Optionally, the user may further improve the "linear relationship" between the oscillation frequency of the multivibrator 30 and the pressure experienced by the thin film pressure sensor 20 by a linear fit, such as a first order linear fit or a multiple order linear fit, to provide a higher accuracy in detecting female pelvic muscle pressure.

Accordingly, when used to detect female pelvic floor muscle pressure, a user or operator may position the exemplary thin film pressure sensor 20 for detecting female pelvic floor muscle pressure according to embodiments of the present invention on a suitable carrier 10 and then place the carrier 10 with the thin film pressure sensor 20 attached thereto in a suitable location within the female body such that female pelvic floor muscle pressure may act on the thin film pressure sensor 20 or be transmitted to the thin film pressure sensor 20. Generally, the carrier 10 with the membrane pressure sensor 20 attached thereto is placed in the female's pelvic cavity (or other location of the body) so that the female's pelvic muscle pressure acts on the membrane pressure sensor 20. Therefore, the carrier 10 to which the film pressure sensor 20 is attached is preferably provided as a spherical body or a rod-like body that facilitates the force. In this way, female pelvic floor muscle pressure can be detected. As shown in fig. 2A and 4A of the drawings, in order to ensure the smooth start of the multivibrator 30 for detecting the pressure of female pelvic floor muscles, especially when the thin film pressure sensor 20 is not under pressure, according to the exemplary embodiment of the present invention, the exemplary system for detecting the pressure of female pelvic floor muscles further includes a start resistor 90, wherein the start resistor 90 is electrically connected to the multivibrator 30 in parallel with the thin film pressure sensor 20. The trigger resistor 90 of the female pelvic muscle pressure detection system of the present invention increases the fundamental frequency (or oscillation start frequency) and the response time when the pressure value to which the thin film pressure sensor 20 is subjected is small.

Accordingly, the number of the first and second electrodes,

where C is the capacitance of the capacitive element 34 and R is ₁ Is the resistance, R, of the first resistive component 31 ₂ As the resistance of the second resistive element 32, rsensor is the resistance of the thin film pressure sensor 20, and Rsp is the resistance of the actuation resistor 90. It is to be understood that the starting resistor 90 may also be considered an element or component of the multivibrator 30.

As shown in fig. 4A and 4B of the drawings, in order to make the resistance-oscillation frequency variation curve of the multivibrator 30 for detecting female pelvic muscle pressure according to the exemplary embodiment of the present invention more similar to the resistance-pressure value variation curve of the thin film pressure sensor 20 and to make the linearity between the oscillation frequency of the multivibrator 30 and the pressure to which the thin film pressure sensor 20 is subjected, the structures of the first resistive element 31, the second resistive element 32, and the capacitive element 34 of the multivibrator 30 for detecting female pelvic muscle pressure according to the exemplary embodiment of the present invention may be further improved, wherein the capacitive element 34 of the improved multivibrator 30 includes a first resistance 341, a second resistance 342, and a first capacitor 343, the first resistive element 31 includes at least one first adjustment resistor 311, the second resistive element 32 includes at least one second adjustment resistor 321, wherein the first resistor 341 and the first capacitor 343 of the capacitive element 34 are connected in series and parallel with the first resistor 341 and the second capacitor 343. As shown in fig. 4A of the drawings, further, the multivibrator 30 further includes a second capacitor 344, the first resistive component 31 further includes at least one first adjusting capacitor 312, the second resistive component 32 further includes at least one second adjusting capacitor 322, wherein the first resistor 341 is connected in parallel with the first capacitor 343, the second resistor 342 and the second capacitor 344, the first adjusting resistor 311 is connected in parallel with the first adjusting capacitor 312, and the second adjusting resistor 321 is connected in parallel with the second adjusting capacitor 322.

Accordingly, the number of the first and second electrodes,

where C is the capacitance of the capacitive element 34 and R is ₁ Is the resistance, R, of the first resistive component 31 ₂ In terms of the resistance of the second resistive element 32, rsensor is the resistance of the thin film pressure sensor 20, rsp is the resistance of the trigger resistor 35, ZC1 is the capacitive impedance of the first tuning capacitor 312, and ZC2 is the capacitive impedance of the second tuning capacitor 322. As shown in fig. 4B of the drawings, the improved linearity between the oscillation frequency of the multivibrator 30 and the pressure to which the thin film pressure sensor 20 is subjected (first order fit) is better and the accuracy of the detection result of the pressure to which the thin film pressure sensor 20 is subjected is higher. It will be appreciated that the "linear relationship" between the oscillation frequency of the multivibrator 30 and the pressure experienced by the diaphragm pressure sensor 20 may also be obtained by other linear fits, such as a second order fit or a multiple order fit. As shown in fig. 2A to 3B of the drawings, when the oscillation frequency of the multivibrator 30 for detecting the pressure of the pelvic floor muscles of a female according to an embodiment of the present invention is over 1000Hz, the error between the response variation curve of the multivibrator 30 and the response variation curve of the thin film pressure sensor 20 is significantly increased. As shown in fig. 4A and 4B of the drawings, by introducing reactive devices, such as the first adjusting capacitor 312 and the second adjusting capacitor 322, in the feedback network, the problem of error increase between the response curve of the multivibrator 30 and the response curve of the thin film pressure sensor 20 when the oscillation frequency of the multivibrator 30 is above 1000Hz is partially overcome, so that the linearity between the oscillation frequency of the multivibrator 30 and the pressure applied to the thin film pressure sensor 20 is better. In addition, the first resistive element 31 and the second resistive element 32 of the exemplary multivibrator 30 of the female pelvic floor pressure detection system according to the embodiment of the present invention have a resistance of 100-100 mohms, so that the linearity between the oscillation frequency of the multivibrator 30 and the pressure applied to the thin film pressure sensor 20 is better. When the first resistive component 31 and the second resistive component 32 have the same resistance, there is also a difference betweenHelps to improve the linearity between the oscillation frequency of the multivibrator 30 and the pressure to which the thin film pressure sensor 20 is subjected.

As shown in fig. 2A and 4A of the drawings, the exemplary multivibrator 30 of the female pelvic muscle pressure detection system according to the embodiment of the present invention further includes a first potential resistor 81 and a second potential resistor 82, wherein one end of the first potential resistor 81 is pressurized, the other end is electrically connected to the second potential resistor 82 and the second resistive element 32, respectively, one end of the second potential resistor 82 is grounded, and the other end is electrically connected to the first potential resistor 81 and the second resistive element 32, respectively. As shown in FIGS. 2A and 2B of the drawings, the midpoint potential of the exemplary multivibrator 30 of the female pelvic muscle pressure detection system according to an embodiment of the present invention is determined by the resistance of the first potential resistor 81 and the resistance of the second resistive element 32 at low frequencies. At high frequency, the frequency error caused by the feedback current is large, and the frequency error can be reduced by adding a filter capacitor and a buffer circuit.

Fig. 5A and 6A of the drawings illustrate another exemplary multivibrator 30A for detecting female pelvic muscle pressure according to an embodiment of the present invention, wherein the multivibrator 30A includes a first resistive element 31, a second resistive element 32, a comparator 33A and a capacitive element 34, wherein one end of the first resistive element 31 is electrically connected to the second resistive element 32 and the non-inverting input terminal of the comparator 33A, respectively, and the other end is electrically connected to the second end 22 of the thin film pressure sensor 20 and the output terminal of the comparator 33A, respectively, one end of the second resistive element 32 is grounded, the other end is electrically connected to the non-inverting input terminal of the comparator 33A and the first resistive element 31, respectively, one end of the capacitive element 34 is grounded, the other end is electrically connected to the inverting input terminal of the comparator 33A and the first end 21 of the thin film pressure sensor 20, the output terminal of the comparator 33A is electrically connected to the second end 22 of the thin film pressure sensor 20 and the first resistive element 31, respectively, the output terminal of the comparator 33A is electrically connected to the inverting input terminal of the thin film pressure sensor 20, and the non-inverting input terminal of the thin film pressure sensor 20, respectively, and the capacitive element 34. It will be appreciated that the first resistive element 31 and the second resistive element 32 of the multivibrator 30A for detecting female pelvic muscle pressure according to an exemplary embodiment of the present invention are each an electrical component having a magnitude of resistance, which is made up of one or more components; the capacitive element 34 of the multivibrator 30A for detecting female pelvic muscle pressure according to an exemplary embodiment of the present invention is an electrical component having a capacitance of a certain magnitude, which is composed of one or more components. Accordingly, there are various implementations of the multivibrator 30A for detecting female pelvic muscle pressure according to the exemplary embodiment of the present invention.

As shown in fig. 5A of the drawings, when the first resistive element 31 and the second resistive element 32 of the multivibrator 30A are both single resistors and the capacitive element 34 is a single capacitor, the multivibrator 30A is configured such that the oscillation frequency F of the multivibrator 30A and the resistance Rsensor of the thin film pressure sensor 20 satisfy the following equation:

where C is the capacitance of the capacitive element 34 and R is ₁ Is the resistance, R, of the first resistive component 31 ₂ Is the resistance of the second resistive component 32. Accordingly, the resistance-oscillation frequency variation curve of the multivibrator 30A for detecting the pressure of the female pelvic muscle according to the embodiment of the present invention coincides or approximately coincides with the resistance-pressure variation curve of the thin film pressure sensor 20. It is noted that the capacitive element 34 of the multivibrator 30A for detecting female pelvic muscle pressure according to the exemplary embodiment of the present invention has a capacitance value of 10pF-330uF. Repeated tests and experiments have found that the error caused by stray capacitance in the multivibrator 30A for detecting pelvic floor muscle pressure according to the exemplary embodiment of the present invention is hard to be reduced to a desired range when the capacitance of the capacitive element 34 is less than 10pF, and that the volume of the capacitive element 34 is too large to satisfy the pelvic floor muscle pressure of the present invention when the capacitance of the capacitive element 34 is greater than 330uFAnd detecting the requirements of the system. Preferably, the capacitance of the multivibrator 30A for detecting female pelvic floor muscle pressure according to the embodiment of the present invention is a COG or NPO ceramic capacitor to ensure the temperature stability of the female pelvic floor muscle pressure detecting system of the present invention.

As shown in fig. 5A of the drawings, when the first resistive element 31 and the second resistive element 32 of the multivibrator 30A are both single resistors and the capacitive element 34 is a single capacitor, the resistance-oscillation frequency variation curve of the multivibrator 30A and the resistance-pressure variation curve of the thin film pressure sensor 20 of the female pelvic floor muscle pressure detection system according to the embodiment of the present invention can be calculated and further linearly fitted to obtain a "linear relationship" between the oscillation frequency of the multivibrator 30A and the pressure applied to the thin film pressure sensor 20:

where N is the pressure to which the film pressure sensor 20 is subjected, F is the oscillation frequency of the multivibrator 30A detected in real time, F is the oscillation frequency of the multivibrator 30A when the pressure to which the film pressure sensor 20 is subjected is zero, and K is a constant. It will be appreciated that the constant K is related to the membrane pressure sensor 20. . It will be appreciated that the "linear relationship" between the oscillation frequency of the multivibrator 30A and the pressure experienced by the thin film pressure sensor 20 may also be obtained by other linear fitting means, such as a second order fit or a multiple order fit.

It is noted that when the first resistive element 31 and the second resistive element 32 of the multivibrator 30A are both single resistors and the capacitive element 34 is a single capacitor, the "coincidence" of the resistance-oscillation frequency variation curve of the multivibrator 30A and the resistance-pressure variation curve of the thin film pressure sensor 20 for detecting female pelvic floor muscle pressure according to the exemplary embodiment of the present invention does not necessarily coincide completely, but is established in that the oscillation frequency of the multivibrator 30A for detecting female pelvic floor muscle pressure according to the exemplary embodiment of the present invention monotonically decreases as the resistance of the thin film pressure sensor 20 increases. The main reason is that the variation of the oscillation frequency of the multivibrator 30A for detecting the pressure of the female pelvic floor muscles according to the embodiment of the present invention is a simulation of the variation of the resistance of the thin film pressure sensor 20 according to the pressure variation, and the variation of the oscillation frequency of the multivibrator 30A is difficult to be completely consistent with the variation of the resistance of the thin film pressure sensor 20 according to the pressure variation, especially, when the pressure applied to the thin film pressure sensor 20 is small, the variation of the resistance according to the pressure variation is large, and when the pressure applied to the thin film pressure sensor 20 is large, the variation of the resistance according to the pressure variation is small. As shown in FIG. 5B of the drawings, accordingly, the "linear relationship" between the oscillation frequency of the multivibrator 30A for detecting the pressure of the female pelvic floor muscles and the pressure applied to the thin film pressure sensor 20 according to the exemplary embodiment of the present invention is a linear relationship obtained by calculation. However, even so, by the configuration method of the multivibrator 30A of the present invention, it is possible for the user or operator to more accurately detect the female pelvic floor muscle pressure to which the thin film pressure sensor 20 is subjected and to significantly increase the upper and lower limits of the female pelvic floor muscle pressure that can be detected by the thin film pressure sensor 20, through the combined use of the thin film pressure sensor 20 and the configured multivibrator 30A. Optionally, the user can further improve the "linear relationship" between the oscillation frequency of the multivibrator 30A and the pressure experienced by the diaphragm pressure sensor 20 through a linear fit, such as a first order linear fit or a multiple order linear fit, to achieve a higher accuracy of detecting female pelvic muscle pressure.

As shown in fig. 5B of the drawings, correspondingly, according to the resistance-pressure value variation curve of the membrane pressure sensor 20 of the female pelvic floor muscle pressure detecting system of the present invention and the relationship between the oscillation frequency F of the multivibrator 30A and the resistance R of the membrane pressure sensor 20, a linear relationship between the oscillation frequency of the multivibrator 30A and the pressure to which the membrane pressure sensor 20 is subjected is calculated:

where N is the pressure to which the diaphragm pressure sensor 20 is subjected and F is detected in real timeThe oscillation frequency of the multivibrator, f, is the oscillation frequency of the multivibrator 30A when the pressure applied to the film pressure sensor 20 is zero, and K is a constant. It will be appreciated that the constant K is related to the membrane pressure sensor 20.

As shown in FIGS. 6A and 6B of the drawings, in order to ensure the smooth start-up of the multivibrator 30A for detecting the pressure of the female pelvic floor muscle, especially when the thin film pressure sensor 20 is not under pressure, according to the exemplary embodiment of the present invention, the female pelvic floor muscle pressure detecting system further includes a start-up resistor 90, wherein the start-up resistor 90 is electrically connected to the multivibrator 30A in parallel with the thin film pressure sensor 20

Accordingly, the number of the first and second electrodes,

where C is the capacitance of the capacitive element 34 and R is ₁ Is the resistance, R, of the first resistive component 31 ₂ As the resistance of the second resistive component 32, rsensor is the resistance of the thin film pressure sensor 20, and Rsp is the resistance of the actuation resistor 90.

As shown in fig. 6A and 6B of the drawings, in order to make the resistance-oscillation frequency variation curve of the multivibrator 30A for detecting female pelvic floor muscle pressure according to the exemplary embodiment of the present invention more similar to the resistance-pressure value variation curve of the thin film pressure sensor 20, the first resistive element 31, the second resistive element 32 and the capacitive element 34 of the multivibrator 30A for detecting female pelvic floor muscle pressure according to the exemplary embodiment of the present invention may be further modified in structure, wherein the capacitive element 34 of the modified multivibrator 30A includes a first resistor 341, a second resistor 342 and a first capacitor 343, the first resistive element 31 includes at least one first adjusting resistor 311, the second resistive element 32 includes at least one second adjusting resistor 321, wherein the first resistor 341 and the first capacitor 343 of the capacitive element 34 are connected in series, and the first resistor 341 and the first capacitor 343 are connected in parallel. As shown in fig. 6A of the drawings, further, the multivibrator 30A further includes a second capacitor 344, the first resistive element 31 further includes at least one first adjusting capacitor 312, the second resistive element 32 further includes at least one second adjusting capacitor 322, wherein the first resistor 341 is connected in parallel with the first capacitor 343, the second resistor 342 and the second capacitor 344, the first adjusting resistor 311 is connected in parallel with the first adjusting capacitor 312, and the second adjusting resistor 321 is connected in parallel with the second adjusting capacitor 322.

Accordingly, the number of the first and second switches is increased,

where C is the capacitance of the capacitive element 34 and R is ₁ Is the resistance, R, of the first resistive component 31 ₂ In terms of the resistance of the second resistive element 32, rsensor is the resistance of the thin film pressure sensor 20, rsp is the resistance of the trigger resistor 90, ZC1 is the capacitive impedance of the first tuning capacitor 312, and ZC2 is the capacitive impedance of the second tuning capacitor 322. As shown in fig. 6B of the drawings, the improved linearity between the oscillation frequency of the multivibrator 30A and the pressure to which the thin film pressure sensor 20 is subjected (first order fit) is better and the accuracy of the detection result of the pressure to which the thin film pressure sensor 20 is subjected is higher. It will be appreciated that the "linear relationship" between the oscillation frequency of the multivibrator 30A and the pressure experienced by the diaphragm pressure sensor 20 may also be obtained by other linear fits, such as a second order fit or a multiple order fit. As shown in fig. 5A and 5B of the drawings, when the oscillation frequency of the multivibrator 30A is above 1000Hz, the error between the response curve of the multivibrator 30A and the response curve of the thin film pressure sensor 20 is significantly increased. As shown in fig. 6A and 6B of the drawings, by introducing reactive devices, such as the first tuning capacitor 312 and the second tuning capacitor 322, into the feedback network, the feedback coefficient of the multivibrator 30A changes with the oscillation frequency, so as to reduce the error between the response curve of the multivibrator 30A and the response curve of the thin film pressure sensor 20 when the oscillation frequency of the multivibrator 30A is above 1000Hz, and to improve the linearity between the oscillation frequency of the multivibrator 30A and the pressure applied to the thin film pressure sensor 20.

As shown in fig. 5A and 6A of the drawings, the exemplary multivibrator 30 of the female pelvic muscle pressure detection system according to the embodiment of the present invention further includes a first potential resistor 81 and a second potential resistor 82, wherein one end of the first potential resistor 81 is pressurized, the other end is electrically connected to the second potential resistor 82 and the second resistive element 32, respectively, one end of the second potential resistor 82 is grounded, and the other end is electrically connected to the first potential resistor 81 and the second resistive element 32, respectively. As shown in FIGS. 2A and 2B of the drawings, at low frequencies, the midpoint potential of the exemplary multivibrator 30 of the female pelvic floor muscle pressure sensing system according to embodiments of the present invention is determined by the resistance of the first potential resistor 81 and the resistance of the second resistive element 32. At high frequency, the frequency error caused by the feedback current is large, and the frequency error can be reduced by adding a filter capacitor and a buffer circuit.

Fig. 7 of the drawings shows another exemplary multivibrator 30B of a female pelvic muscle pressure detection system according to an embodiment of the present invention, wherein the multivibrator 30B includes a first resistor 31B, a second resistor 32B, a schmidt trigger 33B and a first electrical component 34B, wherein the first electrical component 34B includes a first capacitor 341B and a series resistor 343B, wherein one end of the first resistor 31B is electrically connected to an output terminal of the schmidt trigger 33B, and the other end is electrically connected to the first electrical component 34B and the second resistor 32B, respectively, one end of the second resistor 32B is electrically connected to an input terminal of the schmidt trigger 33B, and the other end is electrically connected to the first electrical component 34B and the first resistor 31B, respectively, one end of the first electrical component 34B is electrically connected to the first resistor 31B and the second resistor 32B, and the other end of the first electrical component 34B is electrically connected to a ground, and the other end of the first electrical component 34B is electrically connected to the first resistor 31B and the second resistor 343B, and the other end of the pressure sensor 34B is electrically connected to the pressure sensor 20, and the pressure sensor 20B 21B are electrically connected to the first end of the pressure sensor 343B, and the pressure sensor 343B 21B, respectively. As shown in fig. 7 of the drawings, further, the multivibrator 30B of another exemplary female pelvic muscle pressure detection system according to the embodiment of the present invention further includes a second capacitor 342, wherein the second capacitor 342 is connected in parallel with the thin film pressure sensor 20. In other words, as shown in fig. 7 of the drawings, one end of the two capacitors 342B is electrically connected to the first end 21 of the thin film pressure sensor 20 and the second resistor 32B, and the other end is electrically connected to the second end 22 of the thin film pressure sensor 20. As shown in fig. 7 and 8 of the drawings, the multivibrator 30B is simpler in structure and lower in cost than the multivibrator 30 and the multivibrator 30A described above, but the multivibrator 30B has a slightly poor linearity between the oscillation frequency and the pressure applied to the thin film pressure sensor 20. As shown in fig. 7 of the drawings, the resistance of the exemplary thin film pressure sensor 20 of the female pelvic muscle pressure detection system according to the embodiment of the present invention monotonically decreases as the pressure to which it is subjected increases, and the multivibrator 30B is configured such that its oscillation frequency monotonically increases as the resistance of the thin film pressure sensor 20 increases.

As shown in fig. 7 of the drawings, the multivibrator 30B of the female pelvic floor muscle pressure detecting system according to the embodiment of the present invention further includes a first electronic element 361, a second electronic element 362 and a third electronic element 363, wherein one end of the first electronic element 361 is electrically connected to a reference point, the other end of the first electronic element 361 is electrically connected to the output terminal of the schmitt trigger 33B, one end of the second electronic element 362 is electrically connected to a reference point, the other end of the second electronic element 362 is electrically connected to the output terminal of the schmitt trigger 33B, one end of the third electronic element 363 is electrically connected to a reference point, and the other end of the third electronic element 363 is electrically connected to the output terminal of the schmitt trigger 33B. Preferably, the first electronic element 361 is a diode, the second electronic element 362 is a capacitor, and the third electronic element 363 is a resistor.

As shown in fig. 11 and 12 of the drawings, the female pelvic muscle pressure detection system according to the embodiment of the present invention further includes at least one micro control unit 40 and at least one analog-to-digital conversion module 50, wherein the micro control unit 40 is electrically connected to the output of the multivibrator 30, the micro control unit 40 is configured to detect (or sense) the oscillation frequency of the multivibrator 30 and generate a corresponding analog signal, the analog-to-digital conversion module 50 is electrically connected to the micro control unit 40, and the analog-to-digital conversion module 50 is configured to convert the analog signal generated by the micro control unit 40 into a corresponding digital signal. Preferably, the oscillation frequency of the multivibrator 30 of the female pelvic floor muscle pressure detection system according to the embodiment of the present invention is configured to be 10Hz to 10MHz according to the requirement of female pelvic floor muscle pressure detection. When the oscillation frequency of the multivibrator 30 is too low, it is difficult to satisfy the requirement of detecting the pressure of the female pelvic floor muscles for many times in unit time and to respond to the MCU (micro control unit or single chip microcomputer) in time. In addition, the number of times of detection in unit time is small, and the error of the detection result is easy to be overlarge; when the oscillation frequency of the multivibrator 30 is too high, the performance requirement of the MCU (micro control unit or single chip microcomputer) is high, and the cost is high, which leads to unnecessary cost expenditure.

As shown in fig. 11 and 12 of the drawings, the female pelvic muscle pressure detection system according to the embodiment of the present invention further includes at least one signal transmission module 60, wherein the signal transmission module 60 is configured to transmit the digital signal generated by the analog-to-digital conversion module 50 to a client 70, so that the pressure (value) applied to the diaphragm pressure sensor 20 can be visually displayed on the client 70. Preferably, the pressure (value) to which the membrane pressure sensor 20 is subjected can be visually displayed in digital form at the client 70.

As shown in fig. 11 and 12 of the drawings, the client terminal 70 of the female pelvic muscle pressure detection system according to the embodiment of the present invention is connected to the signal transmission module 60 via an electronic communication network in a signal-transmittable manner, so that the digital signal generated by the analog-to-digital conversion module 50 can be transmitted to the client terminal 70 via the electronic communication network. It is understood that the electronic communication network may be a local area network, a metropolitan area network, a wide area network, a network such as the internet, a Wi-Fi network, a bluetooth network, or a local communication network connection such as USB, PCI, etc. The mcu 40 can understand that the electronic communication network can also be a mobile communication network, such as a GSM network, a CDMA network, a TD-CDMA network, a 3G network, a 4G network, a 5G network, a 6G network, or other data transmission means known to those skilled in the art. The client 70 can be any electronic device capable of displaying or visually displaying the detected data from the signal transmission module 60, such as a computer, a portable computer, a smart phone, a tablet computer, and so on. The client 70 may be computerized or programmed to process and/or visualize the real-time inspection data so that a user can understand the inspection results represented by the real-time inspection data. The client 70 may also include a display for displaying the processed test data.

As shown in fig. 11 and 12 of the drawings, the female pelvic muscle pressure detection system according to the embodiment of the present invention further includes a power module 80, wherein the power module 80 is configured and adapted to supply power to the thin film pressure sensor 20, the micro control unit 40 and/or the multivibrator 30. Accordingly, the power module 80 is provided in electrical connection with the membrane pressure sensor 20, the micro control unit 40 and/or the multivibrator 30, respectively.

Accordingly, as shown in fig. 9 of the drawings, the present invention further provides a method for detecting female pelvic floor muscle pressure according to an embodiment of the present invention, which comprises the following steps:

(A) Placing at least one membrane pressure sensor in a female user at a position such that pressure of pelvic muscles of the user can be transmitted to the membrane pressure sensor, wherein the membrane pressure sensor is electrically connected to a multivibrator and the membrane pressure sensor forms a feedback resistance of the multivibrator, wherein the multivibrator is configured such that an oscillation frequency of the multivibrator corresponds to pressure to which the membrane pressure sensor is subjected; and

(B) And detecting the oscillation frequency of the multivibrator, and acquiring the pressure value applied to the film pressure sensor according to the corresponding relation between the oscillation frequency of the multivibrator and the pressure applied to the film pressure sensor. Preferably, in the female pelvic muscle pressure detecting method of the present invention, in step (a), a plurality of thin film pressure sensors are placed at appropriate positions in the female user's body, and the thin film pressure sensors are electrically connected to the multivibrators, respectively. In other words, the female pelvic muscle pressure system according to the embodiment of the present invention includes a set of thin film pressure sensors 20 and a set of multivibrators 30, the thin film pressure sensors 20 being electrically connected to the multivibrators 30, respectively. Accordingly, the pressure system for female pelvic floor muscles according to the embodiment of the present invention can simultaneously detect the pressure applied to the thin film pressure sensor 20 from a plurality of locations in the female pelvic floor muscles in real time.

According to the embodiment of the invention, the female pelvic muscle pressure detection method further comprises the following steps:

(M) configuring the multivibrator such that the resistance-oscillation frequency variation curve thereof can coincide with the resistance-pressure variation curve of the thin film pressure sensor after being shifted by an appropriate distance, wherein the step (M) is located before the step (a).

According to the embodiment of the invention, the female pelvic floor muscle pressure detection method further comprises the following steps:

(N) configuring the multivibrator to oscillate at a frequency of 10Hz to 10MHz, wherein the step (N) is located before the step (A).

(C) And visually displaying the obtained pressure value of the film pressure sensor on a client.

(H) The multivibrator is configured such that the oscillation frequency thereof is related to the pressure to which the thin film pressure sensor is subjected by the formula:

where N is the pressure to which the diaphragm pressure sensor is subjected, F is the real-time detected oscillation frequency of the multivibrator, and F is the diaphragmThe oscillation frequency of the multivibrator, K, is constant when the pressure applied to the membrane pressure sensor is zero, wherein the step (H) is prior to the step (a).

Accordingly, as shown in fig. 10 of the drawings, the present invention further provides a method for detecting female pelvic floor muscle pressure according to an embodiment of the present invention, which comprises the following steps:

(V) configuring the multivibrator so that its oscillation frequency monotonically decreases as the resistance of the thin film pressure sensor increases.

According to the embodiment of the present invention, the method for configuring the multivibrator further comprises the following steps:

(X) detecting the resistance of the film pressure sensor when the film pressure sensor is subjected to different pressures to obtain a resistance-pressure change curve of the film pressure sensor; and

(Y) configuring the multivibrator such that the resistance-oscillation frequency variation curve thereof can coincide with the resistance-pressure variation curve of the thin film pressure sensor after being shifted by an appropriate distance.

Preferably, the equation corresponding to the resistance-oscillation frequency variation curve of the multivibrator and the equation corresponding to the resistance-pressure variation curve of the thin film pressure sensor are a pair of generation equations.

(W) configuring the multivibrator such that its oscillation frequency linearly corresponds to the pressure to which the thin film pressure sensor is subjected after fitting.

(N) configuring the multivibrator so that the oscillation frequency thereof is 10Hz-10MHz.

wherein N is the pressure to which the film pressure sensor is subjected, F is the oscillation frequency of the multivibrator detected in real time, F is the oscillation frequency of the multivibrator when the pressure to which the film pressure sensor is subjected is zero, and K is a constant.

It is noted that the terms "first", "second" and/or "third" herein are used merely to name and distinguish between different components (or elements) of the invention, and do not have an ordinal or numerical meaning per se.

It should be understood by those skilled in the art that the embodiments described above and shown in the accompanying drawings are merely for illustrative purposes and are not intended to limit the present invention. All equivalent implementations, modifications and improvements that are within the spirit of the invention are intended to be included within the scope of the invention.

Claims

1. A female pelvic floor muscle pressure detection method is characterized by comprising the following steps:

(A) Placing at least one membrane pressure sensor in a female user's body at a location such that pressure of the user's pelvic floor muscles can be transmitted to the membrane pressure sensor, wherein the membrane pressure sensor is electrically connected to the multivibrator and the membrane pressure sensor forms a feedback resistance of the multivibrator;

(W) configuring the multivibrator such that its oscillation frequency corresponds linearly to the pressure experienced by the diaphragm pressure sensor after fitting; and

2. The method for detecting female pelvic muscle pressure as claimed in claim 1, further comprising the steps of:

3. The method for detecting pelvic muscle pressure in a female, as claimed in claim 1, further comprising the steps of:

4. The method for detecting female pelvic muscle pressure as claimed in claim 1, further comprising the steps of:

(H) Configuring the multivibrator such that the oscillation frequency thereof has a relationship with the pressure to which the film pressure sensor is subjected, the relationship being expressed by:

wherein N is the pressure to which the film pressure sensor is subjected, F is the oscillation frequency of the multivibrator detected in real time, F is the oscillation frequency of the multivibrator when the pressure to which the film pressure sensor is subjected is zero, and K is a constant, wherein the step (H) is performed before the step (A).

5. The method for detecting pelvic muscle pressure in a female subject according to claim 1, 2, 3 or 4, wherein the resistance of the thin film pressure sensor monotonically decreases as the pressure to which the thin film pressure sensor is subjected increases, and wherein the multivibrator is configured such that the oscillation frequency thereof monotonically decreases as the resistance of the thin film pressure sensor increases.

6. A method of configuring a multivibrator adapted to detect female pelvic floor muscle pressure, comprising the steps of:

(U) electrically connecting the multivibrator to a thin film pressure sensor for detecting female pelvic floor muscle pressure, such that the thin film pressure sensor forms a feedback resistance of the multivibrator;

(V) configuring the multivibrator so that its oscillation frequency changes monotonically as the resistance of the thin-film pressure sensor increases;

(X) detecting the resistance of the film pressure sensor when the film pressure sensor is subjected to different pressures so as to obtain a resistance-pressure change curve of the film pressure sensor; and

7. The method of claim 6, wherein the multivibrator is configured such that the equation corresponding to the resistance-oscillation frequency variation curve of the multivibrator is a pair of generation equations with respect to the equation corresponding to the resistance-pressure variation curve of the thin film pressure sensor.

8. The multivibrator configuration method of claim 6, further comprising the steps of:

9. The multivibrator configuration method of claim 6, further comprising the steps of:

wherein N is the pressure to which the diaphragm pressure sensor is subjected, F is the oscillation frequency of the multivibrator detected in real time, and F is the pressure to which the diaphragm pressure sensor is subjectedAt zero, the oscillation frequency of the multivibrator, K, is constant.

10. The multivibrator configuration method of claim 6, further comprising the steps of: