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WO2022198728A1 - Méthode et système de mesure de la pression des muscles du plancher pelvien féminin - Google Patents

Méthode et système de mesure de la pression des muscles du plancher pelvien féminin Download PDF

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Publication number
WO2022198728A1
WO2022198728A1 PCT/CN2021/087359 CN2021087359W WO2022198728A1 WO 2022198728 A1 WO2022198728 A1 WO 2022198728A1 CN 2021087359 W CN2021087359 W CN 2021087359W WO 2022198728 A1 WO2022198728 A1 WO 2022198728A1
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Prior art keywords
multivibrator
pressure
pressure sensor
pelvic floor
oscillation frequency
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PCT/CN2021/087359
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English (en)
Chinese (zh)
Inventor
谢晗
原晶
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Vtrump Tech Shanghai Co Ltd
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Vtrump Tech Shanghai Co Ltd
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Priority claimed from CN202120592652.4U external-priority patent/CN216702544U/zh
Priority claimed from CN202110309924.XA external-priority patent/CN113261960B/zh
Priority claimed from CN202110311006.0A external-priority patent/CN113261961B/zh
Application filed by Vtrump Tech Shanghai Co Ltd filed Critical Vtrump Tech Shanghai Co Ltd
Publication of WO2022198728A1 publication Critical patent/WO2022198728A1/fr
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow

Definitions

  • the invention relates to the technical field of medical care, in particular to a method for detecting the pressure of female pelvic floor muscles.
  • the present invention further relates to a female pelvic floor muscle pressure detection system.
  • Female pelvic floor muscles are the muscle groups that seal off the pelvic floor.
  • the muscle groups that make up the pelvic floor surround organs such as the urethra, bladder, vagina, uterus, rectum, etc., supporting the pelvic and abdominal organs and maintaining them in their normal positions to perform their functions. Therefore, the pelvic floor muscles are related to bladder, bowel and sexual function.
  • the pelvic floor muscles can be damaged by infectious disease, inflammation, trauma, or excessive tears, such as those caused by childbirth.
  • pelvic floor muscle contraction ability can be performed by a pressure sensor placed in a suitable position in the human body (eg, in the vagina).
  • the membrane pressure sensor can be arranged on the carrier, and then placed in a proper position in the female body, to detect the pressure on the membrane pressure sensor, so as to determine the contraction ability of the female pelvic floor muscles.
  • Common carriers for setting membrane pressure sensing include Kegel balls or vibrators for female pelvic floor exercises. In this way, the contractility of the female pelvic floor muscles can be detected in real time.
  • UK Patent Application No. 1111532.6 teaches an electronic posture sensor responsive to squeeze 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.
  • the electronic device provided by the patent has many drawbacks: First, the electronic device needs to first detect the user's feedback device through a sensor, and then remind the user to adopt a better posture through its vibration motor. Therefore, the electronic device disclosed in this patent can only provide a reminder, and cannot directly detect the contraction ability of the pelvic floor muscles and provide the user with a direct detection result. Second, the electronic device can only play a role in strengthening the patient's pelvic floor muscles when the patient successfully tightens the corresponding muscle.
  • the electronic device works only through the vibration therapy of its vibration motor, and cannot guide and help users to exercise their pelvic floor muscles by providing the user with the detection result of the contraction force of the pelvic floor muscles (or vaginal cavity). Finally, the electronic device can only obtain a vague and non-quantitative gesture signal.
  • the Chinese invention patent with the application number CN201410751835.0 provides a female pelvic floor muscle pressure detection device, wherein the female pelvic floor muscle pressure detection device can detect the contraction ability of the user's pelvic floor muscle through its membrane pressure sensor, and according to the detection The results help the user to exercise the pelvic floor muscles, wherein the thin film pressure sensor used in the female pelvic floor muscle pressure detection device is a resistive sensor, the thin film pressure sensor is attached to the carrier and placed in a proper position in the human body, and its output resistance As the pressure applied to the surface of the thin film pressure sensor increases, the pressure decreases.
  • the thin film pressure sensor is connected to the analog-to-digital conversion module through a voltage amplifying circuit.
  • the resistance changes too much with the pressure change, and when the pressure received is large, the resistance changes too small with the pressure change, so that no matter the pressure on the film pressure sensor is too small
  • it is still too large it is difficult to achieve accurate detection by detecting the resistance of the film pressure sensor to detect the pressure it is subjected to.
  • the resistance changes too much with the pressure change, and when the pressure received is large, the resistance changes too small with the pressure change, which also leads to the detection of the resistance of the film pressure sensor.
  • the pressure range that can be detected is small.
  • the main advantage of the present invention is to provide a female pelvic floor muscle pressure detection method, wherein the female pelvic floor muscle pressure detection method of the present invention converts the resistance signal of the thin film pressure sensor used to detect the female pelvic floor muscle pressure into a corresponding oscillator
  • the oscillation frequency signal of the film pressure sensor can be obtained by detecting the oscillation frequency of the multivibrator.
  • the method for detecting the pressure of the female pelvic floor muscle of the present invention can overcome the defect of detecting the pressure received by the thin-film pressure sensor by detecting the resistance of the thin-film pressure sensor.
  • Another advantage of the present invention is to provide a female pelvic floor muscle pressure detection method, wherein the female pelvic floor muscle pressure detection method of the present invention connects a thin film pressure sensor for detecting female pelvic floor muscle pressure to a multivibrator and configures
  • the multivibrator makes the oscillation frequency of the multivibrator change monotonically (monotonically increases or decreases) as the resistance of the thin film pressure sensor decreases, so that the oscillation frequency of the multivibrator is the same as that of the film pressure sensor. corresponding to pressure. It can be understood that the resistance of the thin film pressure sensor changes monotonically (monotonically increases or decreases) with the change of the pressure it is subjected to.
  • Another advantage of the present invention is to provide a female pelvic floor muscle pressure detection method, wherein the female pelvic floor muscle pressure detection method of the present invention connects a thin film pressure sensor for detecting female pelvic floor muscle pressure to a multivibrator and configures
  • the multivibrator can make the oscillation frequency of the multivibrator monotonically increase as the resistance of the film pressure sensing decreases and the oscillation frequency of the multivibrator has a substantially linear relationship with the pressure sensed by the film pressure, thereby expanding the The upper and lower limits of the detection range of female pelvic floor muscle pressure, and the enhancement of the accuracy of female pelvic floor muscle pressure detection.
  • the female pelvic floor muscle pressure detection method of the present invention 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 detection method, wherein the female pelvic floor muscle pressure detection method of the present invention can determine the membrane pressure sensor corresponding to the oscillation frequency through the oscillation frequency of the multivibrator The received pressure (or contraction force) of the pelvic floor muscle, so that the pressure can be visually provided to the user, so that the user can conveniently obtain the pressure of the detected pelvic floor muscle.
  • Another advantage of the present invention is to provide a female pelvic floor muscle pressure detection system, wherein the thin film pressure sensor of the female pelvic floor muscle pressure detection system of the present invention is connected to a multivibrator, wherein the thin film pressure sensor can be regarded as the the feedback resistance of the multivibrator, and the multivibrator is configured such that its oscillation frequency changes monotonically (monotonically increases or decreases) as the resistance of the thin film pressure sensing decreases, so that the multivibrator oscillates The oscillation frequency of the sensor forms a corresponding relationship with the pressure received by the membrane pressure sensor. It can be understood that the resistance of the thin film pressure sensor changes monotonically (monotonically increases or decreases) with the change of the pressure it is subjected to.
  • the present invention provides a method for detecting the pressure of female pelvic floor muscles, which comprises the following steps:
  • the present invention further relates to a method for configuring a multivibrator, wherein the multivibrator is suitable for detecting the pressure of the female pelvic floor muscles, comprising the following steps:
  • the multivibrator is configured so that its oscillation frequency changes monotonically as the resistance of the thin film pressure sensor increases.
  • the present invention further relates to a female pelvic floor muscle pressure detection system, comprising:
  • the thin film pressure sensor is electrically connected to the multivibrator, wherein the thin film pressure sensor forms the multivibrator feedback resistor.
  • FIG. 1 shows a resistance-pressure change curve of an exemplary thin-film pressure sensor for detecting female pelvic floor muscle pressure according to an embodiment of the present invention.
  • FIG. 2A is a schematic structural diagram of the exemplary multivibrator for detecting the pressure of the female pelvic floor muscles according to the embodiment of the present invention.
  • FIG. 2B is a resistance-oscillation frequency variation curve of the exemplary multivibrator for detecting the pressure of the female pelvic floor muscle according to the embodiment of the present invention.
  • FIG. 3A shows the resistance-oscillation frequency change curve of the exemplary multivibrator for detecting the pressure of the female pelvic floor muscle and an exemplary membrane pressure for detecting the pressure of the female pelvic floor muscle according to the embodiment of the present invention.
  • the resistance-oscillation frequency change curve of the multivibrator coincides with the resistance-pressure change curve of the thin film pressure sensor after an appropriate translation.
  • FIG. 3B shows the corresponding relationship between the oscillation frequency of the multivibrator for detecting the pressure of the female pelvic floor muscle and the pressure received by the membrane pressure sensor according to the exemplary embodiment of the present invention.
  • FIG. 4A is a schematic structural diagram of a preferred implementation of the exemplary multivibrator for detecting female pelvic floor muscle pressure according to an embodiment of the present invention.
  • FIG. 4B shows the corresponding relationship between the oscillation frequency of the preferred implementation of the multivibrator for detecting female pelvic floor muscle pressure according to the embodiment of the present invention and the pressure received by the membrane pressure sensor, wherein The figure shows that the preferred implementation of the multivibrator has better linearity between the oscillation frequency and the pressure experienced by the membrane pressure sensor.
  • FIG. 5A is a schematic structural diagram of another exemplary multivibrator for detecting the pressure of female pelvic floor muscles according to the embodiment of the present invention.
  • FIG. 5B shows the corresponding relationship between the oscillation frequency of the multivibrator for detecting the pressure of the female pelvic floor muscle and the pressure received by the membrane pressure sensor according to the exemplary embodiment of the present invention shown in FIG. 5A .
  • FIG. 6A is a schematic structural diagram of a 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 corresponding relationship between the oscillation frequency of the preferred implementation of the multivibrator for detecting female pelvic floor muscle pressure and the pressure received by the membrane pressure sensor according to the embodiment of the present invention, wherein The figure shows that the preferred implementation of the multivibrator has better linearity between the oscillation frequency and the pressure experienced by the membrane pressure sensor.
  • FIG. 7 is a schematic structural diagram of another exemplary multivibrator for detecting the pressure of female pelvic floor muscles according to the embodiment of the present invention.
  • FIG. 8 shows the corresponding relationship between the oscillation frequency of the multivibrator for detecting the pressure of the female pelvic floor muscle and the pressure received by the membrane pressure sensor according to the exemplary embodiment of the present invention shown in FIG. 7 .
  • FIG. 9 is a flowchart of the above-mentioned method for detecting the pressure of the female pelvic floor muscle according to the embodiment of the present invention.
  • FIG. 10 is a flowchart of the above-mentioned method for configuring a multivibrator according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of an exemplary female pelvic floor muscle pressure detection system according to an embodiment of the present invention.
  • FIG. 12 shows an exemplary signal transmission manner between the exemplary female pelvic floor muscle pressure detection system and the client according to the embodiment of the present invention.
  • the term “a” should be understood as “at least one” or “one or more”, that is, in one embodiment, the number of an element may be one, while in In other embodiments, the number of the elements may be multiple.
  • FIG. 1 of the accompanying drawings shows a resistance-pressure (value) change curve of an exemplary thin-film pressure sensor for detecting female pelvic floor muscle pressure according to an embodiment of the present invention.
  • the resistance of most existing membrane pressure sensors used to detect female pelvic floor muscle pressure decreases monotonically as the pressure increases, but the resistance of the membrane pressure sensor increases with the pressure.
  • the change is non-linear. When the pressure it is subjected to is small, the resistance changes greatly with the pressure change, and when the pressure it receives is large, the resistance changes relatively little with the pressure change.
  • the resistance changes too much with the pressure change, and when the pressure received is large, the resistance changes too small with the pressure change, so that no matter the pressure on the film pressure sensor is too high.
  • it is too small or too large it is difficult to detect with high precision by detecting the resistance of the thin film pressure sensor and using the detected resistance of the thin film pressure sensor to detect the pressure it receives.
  • the resistance changes too much with the pressure change, and when the pressure received is large, the resistance changes too small with the pressure change, which also leads to the detection of the resistance of the film pressure sensor.
  • the pressure it is subjected to the pressure range that can be detected is small. Therefore, the traditional pressure detection method that determines the pressure received by the membrane pressure sensor by detecting the resistance of the membrane pressure sensor cannot accurately detect the pressure received by the membrane pressure sensor, and the pressure range that can be detected is also small.
  • the present invention creatively develops a new method for detecting the pressure on the membrane pressure sensor:
  • the pressure sensor is connected to a multivibrator and the multivibrator is configured so that the oscillation frequency of the multivibrator corresponds to the pressure received by the film pressure sensor, and then the oscillation frequency of the multivibrator is detected to determine the film pressure The pressure on the sensor.
  • the detection of the pressure on the membrane pressure sensor is no longer determined by detecting the resistance of the membrane pressure sensor and determining its resistance according to the resistance of the membrane pressure sensor.
  • the pressure on the membrane pressure sensor is determined by detecting the oscillation frequency of the multivibrator.
  • the exemplary multivibrator for detecting the pressure of the female pelvic floor muscles needs to be pre-configured.
  • the resistance (size) of the thin film pressure sensor is determined to determine the magnitude of the resistance of the thin film pressure sensor with the pressure The change occurs due to the change, so as to determine the resistance-pressure correspondence relationship of the thin-film pressure sensor and obtain the resistance-pressure change curve of the thin-film pressure sensor. As shown in FIG.
  • a resistance-pressure change curve of an exemplary thin film pressure sensor for detecting female pelvic floor muscle pressure according to an embodiment of the present invention
  • the resistance of the thin film pressure sensor is monotonous with the increase of pressure becomes smaller, and the change of its resistance value with pressure is non-linear.
  • the resistance-pressure change curve of the exemplary thin film pressure sensor for detecting female pelvic floor muscle pressure according to embodiments of the present invention may vary due to different models, materials, manufacturing processes and even manufacturers. Therefore, Figure 1 of the accompanying drawings shows a resistance-pressure change curve of an exemplary thin-film pressure sensor for detecting female pelvic floor muscle pressure according to an embodiment of the present invention.
  • the multivibrator When other types or types of thin-film pressure sensors are used, their resistance-pressure curve may be changed accordingly. Then, configure the multivibrator according to the resistance-pressure change curve of the exemplary thin film pressure sensor for detecting female pelvic floor muscle pressure according to the embodiment of the present invention, so that the oscillation frequency of the multivibrator varies with the The magnitude of the resistance of the thin film pressure sensor changes monotonically, so that the pressure received by the thin film pressure sensor corresponds to the oscillation frequency of the multivibrator.
  • the multivibrator is configured such that the oscillation frequency of the multivibrator decreases monotonically as the resistance of the thin film pressure sensor increases.
  • the equation corresponding to the resistance-oscillation frequency change curve of the multivibrator and the equation corresponding to the resistance-pressure change curve of the thin film pressure sensor are a pair of generating equations for each other. Accordingly, when the exemplary multivibrator for detecting female pelvic floor muscle pressure according to an embodiment of the present invention is configured such that when the resistance-oscillation frequency variation curve of the multivibrator and the thin film pressure sensor are When the resistance-pressure change curve is located in the same quadrant, and after the resistance-oscillation frequency change curve of the multivibrator is shifted by an appropriate distance, it can be "coincident" with the resistance-pressure change curve of the thin film pressure sensor, the multivibrator oscillation The oscillation frequency of the sensor has a linear relationship with the pressure received by the membrane pressure sensor.
  • an exemplary female pelvic floor muscle pressure detection system includes at least one membrane pressure sensor 20 and at least one multivibrator 30, wherein the membrane pressure sensor 20 And the multivibrator 30 may be provided 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 .
  • the multivibrator 30 is configured so that the oscillation frequency of the multivibrator 30 corresponds to the pressure experienced by the membrane pressure sensor 20, so that the user or operator only needs to detect (or obtain) the multivibrator 30.
  • the oscillation frequency of the resonator 30 can be obtained according to the corresponding relationship between the oscillation frequency of the multivibrator 30 and the pressure received by the film pressure sensor 20 to obtain the pressure value received by the film pressure sensor 20 . Therefore, the exemplary female pelvic floor muscle pressure detection system according to the embodiments of the present invention can overcome the existing defects of detecting the pressure received by the thin film pressure sensor by detecting the resistance of the thin film pressure sensor.
  • the multivibrator 30 is configured such that its oscillation frequency changes monotonically with changes in the resistance (magnitude) of the thin film pressure sensor 20 .
  • the multivibrator 30 is configured such that its oscillation frequency decreases monotonically as the resistance of the thin film pressure sensor 20 increases, and the resistance of the thin film pressure sensor 20 decreases monotonically as the pressure increases.
  • the oscillation frequency of the multivibrator 30 detected by the exemplary female pelvic floor muscle pressure detection system according to the embodiment of the present invention is also relatively high.
  • FIGS. 2A and 4A of the accompanying drawings show an exemplary multivibrator 30 for detecting female pelvic floor muscle pressure according to an embodiment of the present invention, wherein the multivibrator 30 includes a first resistive component 31.
  • a second resistive component 32, an operational amplifier 33 and a capacitive component 34 wherein one end of the first resistive component 31 is in phase with the non-inverting input terminal of the second resistive component 32 and the operational amplifier 33 respectively.
  • the other end is electrically connected to the second end 22 of the thin film pressure sensor 20 and the output end of the operational amplifier 33 respectively.
  • One end of the second resistive component 32 is grounded, and the other end is in phase with the operational amplifier 33
  • the input end is electrically connected to the first resistive component 31
  • one end of the capacitive component 34 is grounded, and the other end is electrically connected to the inverting input end of the operational amplifier 33 and the first end 21 of the membrane pressure sensor 20 respectively.
  • the output end of the operational amplifier 33 is electrically connected to the second end 22 of the thin film pressure sensor 20 and the first resistive component 31 respectively, and the inverting input end of the operational amplifier 33 is respectively connected to the second end of the thin film pressure sensor 20
  • One end 21 is electrically connected to the capacitive component 34
  • the non-inverting input end of the operational amplifier 33 is electrically connected to the first resistive component 31 and the second resistive component 32 respectively.
  • the first resistive component 31 and the second resistive component 32 of the exemplary multivibrator 30 of the female pelvic floor muscle pressure detection system according to the embodiment of the present invention are electrical components with a certain resistance, respectively , which is composed of one or more components;
  • the capacitive component 34 of the exemplary multivibrator 30 of the female pelvic floor muscle pressure detection system according to the embodiment of the present invention is an electrical component with a certain size of capacitance, which consists of a or multiple components.
  • the exemplary multivibrator 30 for detecting female pelvic floor muscle pressure according to embodiments of the present invention has various implementations.
  • 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 formula:
  • the resistance-oscillation frequency change curve of the multivibrator 30 for detecting the female pelvic floor muscle pressure according to the exemplary embodiment of the present invention and the resistance-pressure change curve of the thin film pressure sensor 20 may coincide or approximately coincident.
  • the capacitance value of the capacitive component 34 of the multivibrator 30 for detecting the pressure of the female pelvic floor muscle according to the embodiment of the present invention is 10pF-330uF.
  • the capacitance value of the capacitive component 34 is less than 10pF, the stray stray in the multivibrator 30 for detecting the female pelvic floor muscle pressure according to the embodiment of the present invention
  • the error caused by the capacitance will be difficult to reduce to the ideal range.
  • the capacitance value of the capacitive component 34 is greater than 330uF, the volume of the capacitive component 34 is too large to meet the requirements of the female pelvic floor muscle pressure detection of the present invention.
  • the capacitance of the exemplary multivibrator 30 for detecting the female pelvic floor muscle pressure is a COG or NPO ceramic capacitor, so as to ensure the temperature stability of the female pelvic floor muscle pressure detecting system of the present invention sex.
  • N is the pressure received by the membrane pressure sensor 20
  • 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 received by the membrane pressure sensor 20 is zero.
  • K is a constant. It can be understood that the constant K is related to the membrane pressure sensor 20 . It can be understood that the “linear relationship” between the oscillation frequency of the multivibrator 30 and the pressure received by the thin film pressure sensor 20 can also be obtained by other linear fitting methods, such as second-order fitting or multi-order fitting.
  • the resistance-oscillation frequency change curve of the multivibrator 30 for detecting the female pelvic floor muscle pressure is "coincident" with the resistance-pressure change curve of the thin film pressure sensor 20 Not necessarily completely coincident, but based on the exemplary embodiment of the present invention that the oscillation frequency of the multivibrator 30 for detecting female pelvic floor muscle pressure is monotonic with the increase of the resistance of the thin film pressure sensor 20. The smaller phase coincides.
  • the variation of the oscillation frequency of the multivibrator 30 for detecting the pressure of the female pelvic floor muscle is a simulation of the variation of the resistance of the membrane pressure sensor 20 with the variation of the pressure.
  • the change of the oscillation frequency of the resonator 30 is difficult to be completely consistent with the change of the resistance of the thin film pressure sensor 20 with the pressure change, especially when the pressure received by the thin film pressure sensor 20 is small, the resistance changes greatly with the pressure change, When the pressure is higher, the resistance changes less with the pressure change. As shown in FIG.
  • the user can further improve the “linearity” between the oscillation frequency of the multivibrator 30 and the pressure received by the membrane pressure sensor 20 through linear fitting, such as first-order linear fitting or multi-order linear fitting. relationship” to make the detection of female pelvic floor muscle pressure more accurate.
  • linear fitting such as first-order linear fitting or multi-order linear fitting. relationship
  • the user or operator when used to detect female pelvic floor muscle pressure, the user or operator can set the exemplary thin film pressure sensor 20 for detecting female pelvic floor muscle pressure according to an embodiment of the present invention on a suitable carrier 10 Then, the carrier 10 with the membrane pressure sensor 20 attached is placed in a proper position in the female body, so that the female's pelvic floor muscle pressure can act on the membrane pressure sensor 20 or be transmitted to the membrane pressure sensor 20 .
  • the carrier 10 to which the membrane pressure sensor 20 is attached is placed in a woman's 4 (or pelvic floor cavity) so that the woman's pelvic floor muscle pressure acts on the membrane pressure sensor 20 .
  • the carrier 10 to which the thin-film pressure sensor 20 is attached is preferably configured as a spherical body or a rod-shaped body which is convenient for receiving force.
  • female pelvic floor muscle pressure can be detected.
  • FIG. 2A and FIG. 4A of the accompanying drawings in order to ensure the smooth start of the exemplary multivibrator 30 for detecting the pressure of the female pelvic floor muscles according to the embodiment of the present invention, especially when the membrane pressure sensor 20 is not When subjected to pressure, the oscillation can also be started smoothly.
  • the exemplary female pelvic floor muscle pressure detection system according to the embodiment of the present invention further includes a starting resistor 35, wherein the starting resistor 35 is connected in parallel with the thin film pressure sensor 20 to the multiple pelvic floor muscles.
  • the resonators 30 are electrically connected to each other.
  • the starting resistance 35 of the female pelvic floor muscle pressure detection system of the present invention improves the fundamental frequency (or the oscillation starting frequency) and the response time when the pressure value received by the membrane pressure sensor 20 is small
  • R 1 is the resistance of the first resistive element 31
  • R 2 is 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 start-up resistor 35 . It can be understood that the start-up resistor 35 can also be regarded as an element or component of the multivibrator 30 .
  • the improved multivibrator includes a first resistor 341 , a second resistor 342 and a first capacitor 343 , the first resistive component 31 includes at least a first adjusting resistor 311 , the second resistive component 32 includes at least one second adjusting resistor 321, wherein the first resistor 341 and the first capacitor 343 of the capacitive component 34 are connected in series, and the first resistor 341 is connected to the first capacitor 343 and the second resistor 342.
  • the multivibrator 30 further includes a second capacitor 344
  • the first resistive component 31 further includes at least one first adjustment capacitor 312
  • the second resistive component 32 Further includes at least one second adjustment 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, and the first adjustment resistor 311 and the first adjustment capacitor 312 In parallel, the second adjustment resistor 321 and the second adjustment capacitor 322 are connected in parallel.
  • C is the capacitance of the capacitive element 34
  • R 1 is the resistance of the first resistive element 31
  • R 2 is 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 starting resistor 35
  • ZC1 is the capacitance impedance of the first adjustment capacitor 312
  • ZC2 is the capacitance impedance of the second adjustment capacitor 322 .
  • the improved linearity between the oscillation frequency of the multivibrator 30 and the pressure received by the thin film pressure sensor 20 is better (first-order fitting) and the thin film pressure sensor 20 received The accuracy of the pressure detection results is higher.
  • the “linear relationship” between the oscillation frequency of the multivibrator 30 and the pressure received by the thin film pressure sensor 20 can also be obtained by other linear fitting methods, such as second-order fitting or multi-order fitting.
  • second-order fitting or multi-order fitting.
  • FIG. 2A to FIG. 3B of the accompanying drawings when the oscillation frequency of the multivibrator 30 for detecting the female pelvic floor muscle pressure is above 1000 Hz according to the embodiment of the present invention, the multivibrator 30 The error between the response change curve of and the response change curve of the thin film pressure sensor 20 increases significantly.
  • the oscillation frequency of the multivibrator 30 is partially overcome at Above 1000 Hz, the error between the response change curve and the response change curve of the membrane pressure sensor 20 increases, so that the linearity between the oscillation frequency of the multivibrator 30 and the pressure received by the membrane pressure sensor 20 is more linear. it is good.
  • the resistance of the first resistive component 31 and the second resistive component 32 of the exemplary multivibrator 30 of the female pelvic floor muscle pressure detection system according to the embodiment of the present invention is 100-100 M ⁇
  • the resistances of the first resistive element 31 and the second resistive element 32 are the same, it is also helpful to improve the linearity between the oscillation frequency of the multivibrator 30 and the pressure received by the thin film pressure sensor 20 .
  • the exemplary multivibrator 30 of the female pelvic floor muscle pressure detection system further includes a first potential resistor 81 and a second potential resistor 82, 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 component 32 respectively, one end of the second potential resistor 82 is grounded, and the other end is respectively connected to the first potential resistor 82.
  • a potential resistor 81 is electrically connected to the second resistive element 32 . As shown in FIGS.
  • the midpoint potential of the exemplary multivibrator 30 of the female pelvic floor muscle pressure detection system according to the embodiment of the present invention is determined by the first potential resistor 81 .
  • the resistance is determined by the resistance of the second resistive component 32 .
  • the frequency error caused by the feedback current is relatively large, and the frequency error can be reduced by adding filter capacitors and buffer circuits.
  • FIG. 5A and 6A of the accompanying drawings show another exemplary multivibrator 30A for detecting female pelvic floor muscle pressure according to an embodiment of the present invention, wherein the multivibrator 30A includes a first resistor A resistive component 31, a second resistive component 32, a comparator 33A and a capacitive component 34, wherein one end of the first resistive component 31 is respectively connected with the non-inverting input of the second resistive component 32 and the comparator 33A
  • the terminals are electrically connected to each other, and the other terminal is electrically connected to the second terminal 22 of the thin film pressure sensor 20 and the output terminal of the comparator 33A respectively.
  • the non-inverting input terminal is electrically connected to the first resistive component 31 , one end of the capacitive component 34 is grounded, and the other end is respectively in phase with the inverting input terminal of the comparator 33A and the first terminal 21 of the membrane pressure sensor 20 Electrical connection, the output end of the comparator 33A is respectively electrically connected with the second end 22 of the thin film pressure sensor 20 and the first resistive component 31, and the inverting input end of the comparator 33A is respectively connected with the thin film pressure sensor 20
  • the first terminal 21 of the comparator 33A is electrically connected to the capacitive component 34 , and the non-inverting input terminal of the comparator 33A is electrically connected to the first resistive component 31 and the second resistive component 32 respectively.
  • the first resistive component 31 and the second resistive component 32 of the exemplary multivibrator 30A for detecting female pelvic floor muscle pressure according to the embodiment of the present invention respectively have a certain resistance
  • An electrical component which is composed of one or more components
  • the capacitive component 34 of the multivibrator 30A for detecting the pressure of the female pelvic floor muscle according to the embodiment of the present invention is an electrical component with a certain size of capacitance , which consists of one or more components.
  • the exemplary multivibrator 30A for detecting female pelvic floor muscle pressure according to embodiments of the present invention has various implementations.
  • the multivibrator The oscillator 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 formula:
  • the resistance-oscillation frequency change curve of the multivibrator 30A for detecting the female pelvic floor muscle pressure according to the embodiment of the present invention coincides with or is similar to the resistance-pressure change curve of the thin film pressure sensor 20. coincide.
  • the capacitance value of the capacitive component 34 of the multivibrator 30A for detecting the pressure of the female pelvic floor muscle according to the embodiment of the present invention is 10pF-330uF.
  • the capacitance value of the capacitive component 34 is less than 10pF, the stray oscillator 30A in the exemplary multivibrator 30A for detecting female pelvic floor muscle pressure according to the embodiment of the present invention
  • the error caused by the capacitance will be difficult to reduce to the ideal range.
  • the capacitance value of the capacitive component 34 is greater than 330uF, the volume of the capacitive component 34 is too large to meet the requirements of the female pelvic floor muscle pressure detection system of the present invention.
  • the capacitance of the exemplary multivibrator 30A for detecting female pelvic floor muscle pressure is a COG or NPO ceramic capacitor, so as to ensure the temperature stability of the female pelvic floor muscle pressure detecting system of the present invention sex.
  • the capacitive element 34 is a single capacitor
  • the exemplary resistance-oscillation frequency variation curve of the multivibrator 30A and the exemplary resistance-pressure variation curve of the thin film pressure sensor 20 of the female pelvic floor muscle pressure detection system of the embodiment are calculated and further linearly simulated. Combined, the "linear relationship" between the oscillation frequency of the multivibrator 30A and the pressure received by the membrane pressure sensor 20 can be obtained:
  • N is the pressure received by the membrane pressure sensor 20
  • 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 received by the membrane pressure sensor 20 is zero frequency
  • K is a constant. It can be understood that the constant K is related to the membrane pressure sensor 20 . . It can be understood that the “linear relationship” between the oscillation frequency of the multivibrator 30A and the pressure received by the membrane pressure sensor 20 can also be obtained by other linear fitting methods, such as second-order fitting or multi-order fitting.
  • the capacitive element 34 is a single capacitor
  • the resistance-oscillation frequency change curve of the multivibrator 30A for detecting female pelvic floor muscle pressure and the resistance-pressure change curve of the thin film pressure sensor 20 are not necessarily completely coincident, but The oscillation frequency of the multivibrator 30A for detecting female pelvic floor muscle pressure based on the exemplary embodiment of the present invention coincides with the monotonically decreasing oscillation frequency as the resistance of the thin film pressure sensor 20 increases.
  • the variation of the oscillation frequency of the multivibrator 30A for detecting the pressure of the female pelvic floor muscle is a simulation of the variation of the resistance of the membrane pressure sensor 20 with the variation of the pressure.
  • the change of the oscillation frequency of the resonator 30A is difficult to be completely consistent with the change of the resistance of the thin film pressure sensor 20 with the pressure change, especially when the pressure received by the thin film pressure sensor 20 is small, the resistance changes greatly with the pressure change, When the pressure is higher, the resistance changes less with the pressure change. As shown in FIG.
  • the user can further improve the “linearity” between the oscillation frequency of the multivibrator 30A and the pressure received by the membrane pressure sensor 20 through linear fitting, such as first-order linear fitting or multi-order linear fitting. relationship” to make the detection of female pelvic floor muscle pressure more accurate.
  • linear fitting such as first-order linear fitting or multi-order linear fitting. relationship
  • the resistance-pressure value change curve of the membrane pressure sensor 20 of the female pelvic floor muscle pressure detection system As shown in FIG. 5B of the accompanying drawings, correspondingly, the resistance-pressure value change curve of the membrane pressure sensor 20 of the female pelvic floor muscle pressure detection system according to the present invention, the oscillation frequency F of the multivibrator 30A and the membrane pressure The relationship between the resistance R of the sensor 20 is calculated to obtain a linear relationship between the oscillation frequency of the multivibrator 30A and the pressure received by the thin film pressure sensor 20:
  • N is the pressure received by the membrane pressure sensor 20
  • F is the oscillation frequency of the multivibrator detected in real time
  • f is the oscillation frequency of the multivibrator 30A when the pressure received by the membrane pressure sensor 20 is zero
  • K is a constant. It can be understood that the constant K is related to the membrane pressure sensor 20 .
  • the female pelvic floor muscle pressure detection system of the present invention further includes a starting resistor 35, wherein the starting resistor 35 is electrically connected to the multivibrator 30A in parallel with the thin film pressure sensor 20.
  • C is the capacitance of the capacitive element 34
  • R 1 is the resistance of the first resistive element 31
  • R 2 is 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 start-up resistor 35 .
  • the resistance-oscillation frequency change curve of the multivibrator 30A for detecting the female pelvic floor muscle pressure according to the embodiment of the present invention and the thin film pressure sensor
  • the resistance-pressure value change curve of 20 is more similar, which can be compared to the first resistive component 31, the second resistive component 30A of the exemplary multivibrator 30A for detecting female pelvic floor muscle pressure according to the embodiment of the present invention.
  • the structure of the component 32 and the capacitive component 34 is further improved, wherein the capacitive component 34 of the improved multivibrator 30A includes a first resistor 341, a second resistor 342 and a first capacitor 343, the first A 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 is connected in parallel with the first capacitor 343 and the second resistor 342 . As shown in FIG.
  • the multivibrator 30A 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 adjustment 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, and the first adjustment resistor 311 and the first adjustment capacitor 312 In parallel, the second adjustment resistor 321 and the second adjustment capacitor 322 are connected in parallel.
  • C is the capacitance of the capacitive element 34
  • R 1 is the resistance of the first resistive element 31
  • R 2 is 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 starting resistor 35
  • ZC1 is the capacitance impedance of the first adjustment capacitor 312
  • ZC2 is the capacitance impedance of the second adjustment capacitor 322 .
  • the improved linearity between the oscillation frequency of the multivibrator 30A and the pressure received by the thin film pressure sensor 20 is better (first order fitting) and the thin film pressure sensor 20 received The accuracy of the pressure detection results is higher.
  • the "linear relationship" between the oscillation frequency of the multivibrator 30A and the pressure received by the membrane pressure sensor 20 can also be obtained by other linear fitting methods, such as second-order fitting or multi-order fitting.
  • FIGS. 5A and 5B of the accompanying drawings when the oscillation frequency of the multivibrator 30A is above 1000 Hz, the error between the response curve of the multivibrator 30A and the response curve of the thin film pressure sensor 20 increases significantly . As shown in FIGS.
  • the feedback coefficient of the multivibrator 30A can be oscillated with the The frequency changes, 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 1000 Hz, and to make the multivibrator 30A
  • the linearity between the oscillation frequency and the pressure experienced by the membrane pressure sensor 20 is better.
  • the exemplary multivibrator 30 of the female pelvic floor muscle pressure detection system further includes a first potential resistor 81 and a second potential resistor 82, 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 component 32 respectively, one end of the second potential resistor 82 is grounded, and the other end is respectively connected to the first potential resistor 82.
  • a potential resistor 81 is electrically connected to the second resistive element 32 . As shown in FIGS.
  • the midpoint potential of the exemplary multivibrator 30 of the female pelvic floor muscle pressure detection system according to the embodiment of the present invention is determined by the first potential resistor 81 .
  • the resistance is determined by the resistance of the second resistive component 32 .
  • the frequency error caused by the feedback current is relatively large, and the frequency error can be reduced by adding filter capacitors and buffer circuits.
  • FIG. 7 of the accompanying drawings shows another exemplary multivibrator 30B of a female pelvic floor muscle pressure detection system according to an embodiment of the present invention, wherein the multivibrator 30B includes a first resistor 31B, a The second resistor 32B, a Schmitt 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 connected to the electrical component 34B.
  • the output end of the Mitt trigger 33B is electrically connected, the other end is electrically connected to the first electrical component 34B and the second resistor 32B respectively, and one end of the second resistor 32B is connected to the input end of the Schmitt trigger 33B
  • the other ends are electrically connected to the first electrical component 34B and the first resistor 31B respectively, and one end of the first electrical component 34B is electrically connected to the first resistor 31B and the second resistor 32B, respectively.
  • the other end of the first electrical component 34B is grounded, wherein the series resistance 343B of the first electrical component 34B is connected in series with the thin film pressure sensor 20, and the first end 21 of the thin film pressure sensor 20 is electrically connected to the first resistance 31B connected, the second end 22 of the thin film pressure sensor 20 is grounded, one end of the series resistance 343B is electrically connected to the first resistance 31B and the second resistance 32B respectively, and the other end is respectively connected to the first end of the thin film pressure sensor 20 21 is electrically connected, one end of the first capacitor 341B is electrically connected to the first resistor 31B and the second resistor 32B respectively, and the other end is electrically connected to the second end 22 of the thin film pressure sensor 20 . As shown in FIG.
  • another exemplary multivibrator 30B of the female pelvic floor 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 membrane pressure sensor 20 .
  • the second Capacitor 342 is connected in parallel with the membrane pressure sensor 20 .
  • 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 respectively, and the other end is electrically connected to the thin film pressure sensor 20
  • the second ends 22 are electrically connected.
  • the multivibrator 30B has a simpler structure and lower cost, but the multivibrator The linearity between the oscillation frequency of the oscillator 30B and the pressure experienced by the membrane pressure sensor 20 is somewhat poor.
  • the resistance of the exemplary thin film pressure sensor 20 of the female pelvic floor muscle pressure detection system according to the embodiment of the present invention decreases monotonically with the increase of the pressure it receives, and the multivibration oscillates.
  • the oscillator 30B is configured such that its oscillation frequency monotonically increases as the resistance of the thin film pressure sensor 20 increases.
  • the multivibrator 30B of the female pelvic floor muscle pressure detection system further includes a first electronic component 361 , a second electronic component 362 and a third electronic component 363 , wherein one end of the first electronic element 361 is electrically connected to a reference point, the other end is electrically connected to the output end of the Schmitt trigger 33B, one end of the second electronic element 362 is electrically connected to a reference point, and the other end is electrically connected to a reference point.
  • one end of the third electronic element 363 is electrically connected to a reference point, and the other end is electrically connected to the output end of the Schmitt trigger 33B.
  • the first electronic element 361 is a diode
  • the second electronic element 362 is a capacitor
  • the third electronic element 363 is a resistor.
  • the female pelvic floor muscle pressure detection system 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 and the The output terminals of the multivibrator 30 are electrically connected, and the microcontroller 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 connected to the The microcontroller unit 40 is electrically connected, and the analog-to-digital conversion module 50 is configured to convert analog signals generated by the microcontroller unit 40 into corresponding digital signals.
  • the oscillation frequency of the multivibrator 30 of the female pelvic floor muscle pressure detection system is configured to be 10Hz-10MHz.
  • the oscillation frequency of the multivibrator 30 is too low, it is difficult to meet the needs of multiple detections of female pelvic floor muscle pressure within a unit time and cannot respond to the MCU (micro control unit or single chip) in time.
  • the number of detections per unit time is small, which also easily leads to excessive error in the detection results; when the oscillation frequency of the multivibrator 30 is too high, the performance requirements of the MCU (micro-control unit or single-chip microcomputer) are high, and the cost is high. larger, resulting in unnecessary costs.
  • the female pelvic floor muscle pressure detection system further includes at least one signal transmission module 60 , wherein the signal transmission module 60 is configured to be capable of converting the analog-to-digital conversion module 50
  • the generated digital signal is transmitted to a client 70 so that the pressure (value) received by the thin film pressure sensor 20 can be visually displayed on the client 70 .
  • the pressure (value) received by the membrane pressure sensor 20 can be visually displayed on the client 70 in the form of numbers.
  • the client 70 of the female pelvic floor muscle pressure detection system is connected to the signal transmission module 60 through an electronic communication network so as to transmit signals, so that the The digital signal generated by the analog-to-digital conversion module 50 can be transmitted to the client 70 through the electronic communication network.
  • the electronic communication network can 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 micro-control unit 40 can understand that the electronic communication network may 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 any other network known by those skilled in the art. other known means of data transmission.
  • the client 70 can be any electronic device capable of displaying or visually displaying the detection data from the signal transmission module 60, such as a computer, a laptop, a smart phone, a tablet, and so on.
  • the client 70 may be computerized or programmed to process and/or visualize the real-time inspection data, thereby enabling a user to understand the inspection results represented by the real-time inspection data.
  • the client 70 may also include a display for displaying the processed detection data.
  • the female pelvic floor muscle pressure detection system further includes a power module 80, wherein the power module 80 is configured to be suitable for supplying the membrane pressure sensor 20, the micro- The control unit 40 and/or the multivibrator 30 are powered.
  • the power module 80 is configured to be electrically connected to the membrane pressure sensor 20 , the microcontroller unit 40 and/or the multivibrator 30 , respectively.
  • the present invention further provides a method for detecting the pressure of female pelvic floor muscles, which includes the following steps:
  • step (B) of the female pelvic floor muscle pressure detection method of the present invention a plurality of membrane pressure sensors are placed in appropriate positions in the female user's body, and the membrane pressure sensors are electrically connected to the multivibrator respectively. connect.
  • the female pelvic floor muscle pressure system according to the embodiment of the present invention includes a set of membrane pressure sensors 20 and a set of multivibrators 30 , and the membrane pressure sensors 20 are electrically connected to the multivibrators 30 respectively.
  • the female pelvic floor muscle pressure system according to the embodiment of the present invention can simultaneously detect the pressure exerted on the membrane pressure sensor 20 by multiple parts of the female pelvic floor muscle in real time.
  • the female pelvic floor muscle pressure detection method of the present invention further comprises the following steps:
  • step (M) After configuring the multivibrator so that its resistance-oscillation frequency change curve is shifted by an appropriate distance, it can coincide with the resistance-pressure change curve of the thin film pressure sensor, wherein the step (M) is located in the step (A) )Before.
  • the female pelvic floor muscle pressure detection method of the present invention further comprises the following steps:
  • step (N) Configuring the multivibrator to oscillate at a frequency of 10 Hz-10 MHz, wherein the step (N) precedes the step (A).
  • the female pelvic floor muscle pressure detection method of the present invention further comprises the following steps:
  • the female pelvic floor muscle pressure detection method of the present invention further comprises the following steps:
  • N is the pressure received by the membrane pressure sensor
  • F is the oscillation frequency of the multivibrator detected in real time
  • f is the oscillation frequency of the multivibrator when the pressure received by the membrane pressure sensor is zero
  • K is the A constant where the step (H) precedes the step (A).
  • the present invention further provides a method for detecting the pressure of female pelvic floor muscles, which includes the following steps:
  • the multivibrator is configured so that its oscillation frequency monotonically decreases as the resistance of the thin film pressure sensor increases.
  • the multivibrator configuration method of the present invention further comprises the following steps:
  • the equation corresponding to the resistance-oscillation frequency change curve of the multivibrator and the equation corresponding to the resistance-pressure change curve of the thin film pressure sensor are a pair of generating equations for each other.
  • the multivibrator configuration method of the present invention further comprises the following steps:
  • the multivibrator configuration method of the present invention further comprises the following steps:
  • the multivibrator configuration method of the present invention further comprises the following steps:
  • N is the pressure received by the membrane pressure sensor
  • F is the oscillation frequency of the multivibrator detected in real time
  • f is the oscillation frequency of the multivibrator when the pressure received by the membrane pressure sensor is zero
  • K is the constant.

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Abstract

La présente invention concerne une méthode de mesure de la pression des muscles du plancher pelvien féminin, comprenant les étapes consistant : (A) à placer au moins un capteur de pression à couches minces dans une position appropriée dans le corps d'une utilisatrice, de sorte que la pression d'un muscle du plancher pelvien de l'utilisatrice puisse être transférée au capteur de pression à couches minces, le capteur de pression à couches minces étant électriquement connecté à un multivibrateur, et le capteur de pression à couches minces formant une résistance de rétroaction du multivibrateur, le multivibrateur étant configuré de sorte que la fréquence d'oscillation du multivibrateur corresponde à la pression supportée par le capteur de pression à couches minces ; et (B) à mesurer la fréquence d'oscillation du multivibrateur et, en fonction d'une corrélation entre la fréquence d'oscillation du multivibrateur et la pression supportée par le capteur de pression à couches minces, à obtenir la valeur de la pression supportée par le capteur de pression à couches minces.
PCT/CN2021/087359 2021-03-23 2021-04-15 Méthode et système de mesure de la pression des muscles du plancher pelvien féminin Ceased WO2022198728A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CN202120592652.4 2021-03-23
CN202120592652.4U CN216702544U (zh) 2021-03-23 2021-03-23 用于女性盆底肌压力检测系统的多谐振荡器
CN202110309924.XA CN113261960B (zh) 2021-03-23 2021-03-23 女性盆底肌压力检测方法
CN202110309924.X 2021-03-23
CN202110311006.0A CN113261961B (zh) 2021-03-23 2021-03-23 女性盆底肌压力检测系统
CN202110311006.0 2021-03-23

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128032A1 (de) * 1981-07-16 1983-02-03 Robert Bosch Gmbh, 7000 Stuttgart Anordnung zur erfassung eines druckes
US4748853A (en) * 1985-09-17 1988-06-07 Marelli Autronica S.P.A. Interface circuit between a sensor, particularly a thick film pressure sensor and an electrodynamic instrument, and a sensor incorporating such a circuit
CN1106537A (zh) * 1994-02-07 1995-08-09 张益敏 测压计
CN1419114A (zh) * 2002-12-26 2003-05-21 天津师范大学 直接数字化的压力变送器及其测量方法
CN204839545U (zh) * 2015-07-16 2015-12-09 微昔智能科技(上海)有限公司 用于检测使用者阴道内壁的收缩力的检测装置及女性盆底肌压力检测装置
CN109303567A (zh) * 2018-09-06 2019-02-05 微传智能科技（上海）有限公司 多点微力敏传感器、入体式肌力检测设备及其应用

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128032A1 (de) * 1981-07-16 1983-02-03 Robert Bosch Gmbh, 7000 Stuttgart Anordnung zur erfassung eines druckes
US4748853A (en) * 1985-09-17 1988-06-07 Marelli Autronica S.P.A. Interface circuit between a sensor, particularly a thick film pressure sensor and an electrodynamic instrument, and a sensor incorporating such a circuit
CN1106537A (zh) * 1994-02-07 1995-08-09 张益敏 测压计
CN1419114A (zh) * 2002-12-26 2003-05-21 天津师范大学 直接数字化的压力变送器及其测量方法
CN204839545U (zh) * 2015-07-16 2015-12-09 微昔智能科技(上海)有限公司 用于检测使用者阴道内壁的收缩力的检测装置及女性盆底肌压力检测装置
CN109303567A (zh) * 2018-09-06 2019-02-05 微传智能科技（上海）有限公司 多点微力敏传感器、入体式肌力检测设备及其应用

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