Urine flow rate detection equipment

Abstract

The utility model discloses urine flow rate detection equipment which comprises a shell, a lifting shaft and an ascending and descending button for controlling the lifting shaft to move are mounted outside the shell, a urine collecting funnel is fixed outside the lifting shaft, a measuring button is arranged outside the lifting shaft, and a limiter is mounted inside the lifting shaft; a power circuit, an MCU control circuit, a transmission shaft control and signal lamp circuit connected with the MCU control circuit, a limiter circuit, a key circuit, a serial port external circuit and a sensor circuit are arranged in the shell, and the power circuit supplies power to all the circuits. Through the internal circuit structure, a patient can adjust the urine collecting funnel to the favorite height by the external key and the lifting shaft before detection, meanwhile, the key operation is more convenient and faster, the use efficiency of detection equipment every time is accelerated to a certain extent, the waiting time of other patients is shortened, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a urine flow rate detection device. Background Art

[0002] Lower urinary tract dysfunction (LUTS) is one of the common diseases in middle-aged and elderly men. Based on statistical data and the increase in the aging population in various countries, lower urinary tract dysfunction will inevitably become a common disease in the future society and become one of the main problems that professionals need to face. At present, the examination of lower urinary tract dysfunction can be determined by doctor observation and instrument measurement of urine flow rate. The former is not suitable for patient privacy protection and affects the detection effect to a certain extent; the latter is a relatively mature detection method.

[0003] The urine flow rate test is a test item in urodynamics. It can reflect the functional state of the human body during the bladder urination period by detecting the amount of urine discharged per minute during urination. It can detect the pressure and contraction state of the bladder detrusor muscle. At the same time, it can detect the coordination between the bladder detrusor muscle and the urethral sphincter during urine discharge, and can also determine whether the human body needs to increase abdominal pressure to urinate. It is also very helpful for the diagnosis of patients with urethral stenosis.

[0004] The current traditional urine flow rate test is not simple and fast enough for patients of different heights. The raising and lowering operation of the "urine collecting funnel" is even cumbersome, which affects the user experience and causes many inconveniences, and also greatly reduces the efficiency of the equipment.

[0005] Therefore, it is urgent to provide a novel urine flow rate detection device to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a urine flow rate detection device, which can make urine flow rate detection simpler and faster through an internal circuit structure, and provide a higher user experience.

[0007] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a urine flow rate detection device, including a shell, a lifting shaft and an ascending and descending button for controlling the movement of the lifting shaft are installed on the outside of the shell, a urine collecting funnel is fixed on the outside of the lifting shaft, and a measuring button is provided, and a limiter is installed inside the lifting shaft;

[0008] The shell is equipped with a power supply circuit, an MCU control circuit, a transmission shaft control and signal light circuit connected to the MCU control circuit, a limiter circuit, a button circuit, a serial port external circuit and a sensor circuit. The power supply circuit provides power for each circuit.

[0009] In a preferred embodiment of the present invention, the power supply circuit includes a power supply chip U3 and a linear regulator V1. The 24V voltage is stepped down to 5V through the power supply chip U3 and then stepped down to 3.3V through the linear regulator V1.

[0010] In a preferred embodiment of the utility model, the limiter circuit includes a limit switch A circuit and a limit switch B circuit with the same circuit structure; the limit switch A circuit includes a limit switch A, a transistor QW4, resistors RD8, RD10, RD12, and a capacitor C9, the base of the transistor QW4 is connected to the second pin of the limit switch A through the resistor RD8, and an RC filter circuit composed of a resistor RD12 and a capacitor C9 is connected between the base and the emitter of the transistor QW4; the limit switch B circuit includes a limit switch B, a transistor QW3, resistors RD7, RD9, RD11, and a capacitor C8.

[0011] In a preferred embodiment of the utility model, the transmission shaft control and signal light circuit includes transistors QW1, QW2, diode D9, resistors RD1, RD2, RD3, RD4, RD5, RD6, and port PWM_Ctrl; the base of the transistor QW1 is connected to the PWM pin of the MCU through the resistor RD5, the resistor RD6 is connected in parallel between the base and emitter of the transistor QW1, and the resistor RD2 is connected to the collector of the transistor QW1; the base of the transistor QW2 is connected to the Direction pin of the MCU through the resistor RD3, the resistor RD4 is connected in parallel between the base and emitter of the transistor QW2, the collector of the transistor QW2 is connected to the cathode of the diode D9, and the anode of the diode D9 is connected to the resistor RD1.

[0012] In a preferred embodiment of the utility model, the key circuit includes an upper and lower switch circuit and a control switch circuit with the same circuit structure. The upper and lower switch circuit includes an upper and lower switch Motion_SW, inductors CZ4, CZ5, resistors R5, RR3, capacitors C13, C14, one end of the capacitor C13 is connected to the inductor CZ4 and the other end is grounded, the other end of the inductor CZ4 is connected to the third pin of the upper and lower switch Motion_SW, one end of the capacitor C14 is connected to the inductor CZ5 and the other end is grounded, the other end of the inductor CZ5 is connected to the second pin of the upper and lower switch Motion_SW, one end of the resistor R5 is connected in parallel with RR3 and the other end is connected between the inductor CZ4 and the capacitor C13, and the other end of the resistor RR3 is connected between the inductor CZ5 and the capacitor C14; the control switch circuit includes a control switch Crol_SW, inductors CZ2, CZ3, resistors R5, RR1, capacitors C23, C4.

[0013] In a preferred embodiment of the present invention, the serial port external circuit includes a USB to serial port module IC1 and its peripheral circuits, and the peripheral circuits include a crystal oscillator X1, capacitors C28, C34, C35, C36, and a resistor R6.

[0014] In a preferred embodiment of the present invention, the sensor circuit includes an RS232 transceiver U4 and its peripheral circuits, and the peripheral circuits include capacitors C1, C2, C3, C5, C6, and resistors R1, R3.

[0015] In a preferred embodiment of the present invention, the MCU control circuit includes an MCU and its peripheral circuits, and the MCU adopts an STM32F103R8T6 chip.

[0016] The beneficial effect of the utility model is that the utility model enables the patient to adjust the urine collecting funnel to a preferred height before the test through the internal circuit structure of the external buttons and the lifting shaft. At the same time, the button operation is more convenient and quick, which to a certain extent speeds up the use efficiency of each detection equipment, reduces the waiting time of other patients, and increases the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the urine flow rate detection device of the utility model;

[0018] Figure 2 is a block diagram of the internal circuit of the urine flow rate detection device;

[0019] Figure 3 is a circuit diagram of the MCU control circuit;

[0020] Figure 4 is a circuit diagram of the power supply circuit;

[0021] Figure 5 is a circuit diagram of the transmission shaft control and signal light circuit;

[0022] Figure 6 is a circuit diagram of the limiter circuit;

[0023] Figure 7 is a circuit diagram of the key circuit;

[0024] Figure 8 is a circuit diagram of the serial port external circuit;

[0025] Fig. 9 is a circuit diagram of the sensor circuit.

[0026] The markings of the components in the accompanying drawings are as follows: 1. housing, 2. lifting shaft, 3. urine collecting funnel, 4. rising and falling buttons, 5. measuring button. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0028] See also Figure 1 and Figure 2 , the utility model embodiment includes:

[0029] A urine flow rate detection device includes a shell 1, a lifting shaft 2 and an up and down button 4 for controlling the movement of the lifting shaft are installed on the outside of the shell 1, a urine collecting funnel 3 is fixed on the outside of the lifting shaft 2, and a measuring button 5 is provided, and a limiter (not shown in the figure) is installed inside the lifting shaft 2. The lifting shaft 2 is vertically fixed on the outer surface of the shell 1, and a guide rail module is installed on the threaded column of the shaft body, and the urine collecting funnel 3 is fixed on the guide rail module. The internal circuit main board receives the electrical signal of the up and down buttons 4, energizes the lifting shaft 2, and causes the motor at the bottom of the shaft to rotate clockwise and counterclockwise to drive the guide rail to move up and down, thereby realizing the up and down movement of the urine collecting funnel 3.

[0030] The internal circuit of the housing 1 includes a power supply circuit, an MCU control circuit, a transmission shaft control and signal light circuit connected to the MCU control circuit, a limiter circuit, a key circuit, a serial port external circuit and a sensor circuit. The power supply circuit provides power for each circuit.

[0031] Combination Figure 3 The MCU control circuit includes an MCU and its peripheral circuits. Preferably, the MCU adopts an STM32F103R8T6 chip, and controls other circuits of the circuit board through the functions of each pin of the chip.

[0032] Combination Figure 4 The power supply circuit includes a power supply chip U3 and a linear regulator V1. Preferably, the power supply chip U3 adopts a step-down regulator LM2576R-5, and the linear regulator V1 adopts an AMS1117-3V3. The 24V input voltage is stepped down to 5V by the power supply chip U3, and then stepped down to 3.3V by the linear regulator V1. 24V is used for the lifting shaft drive power supply, 5V is used as the drive control signal power supply, and 3.3V is used as the high level of the key control circuit. The 3.3V voltage generated by the power supply circuit AMS1117 flows to each circuit for 3.3V power supply, and the 5V voltage generated by the LM2576R-5 flows to each circuit for 5V power supply.

[0033] Combination Figure 5The limiter circuit includes a limit switch A circuit and a limit switch B circuit with the same circuit structure. The limit switch A circuit includes a limit switch A (Limit_SWA), a transistor QW4, resistors RD8, RD10, RD12, and a capacitor C9. The base of the transistor QW4 is connected to the second pin of the limit switch A through the resistor RD8, and an RC filter circuit composed of a resistor RD12 and a capacitor C9 is connected between the base and the emitter of the transistor QW4; similarly, the limit switch B circuit includes a limit switch B (Limit_SWB), a transistor QW3, resistors RD7, RD9, RD11, and a capacitor C8. The connection relationship of each component is shown in the figure. When the transmission shaft moves and passes through the limiter, when the limiter detects metal, taking Limit_SWA as an example (the same applies to Limit_SWB), the limiter signal end (pin 2) is connected to the positive pole, and the transistor QW4 receives a high-level signal. The transistor QW4 is turned on, the MCU receives the signal, and the Up_Key button (i.e., the up button) of the Motion_SW button is turned off to achieve a limit effect.

[0034] Combination Figure 6 The transmission shaft control and signal light circuit includes transistors QW1, QW2, diode D9, resistors RD1, RD2, RD3, RD4, RD5, RD6, and port PWM_Ctrl; the base of the transistor QW1 is connected to the PWM pin of the MCU through the resistor RD5, the resistor RD6 is connected in parallel between the base and emitter of the transistor QW1, and the resistor RD2 is connected to the collector of the transistor QW1; the base of the transistor QW2 is connected to the Direction pin of the MCU through the resistor RD3, the resistor RD4 is connected in parallel between the base and emitter of the transistor QW2, the collector of the transistor QW2 is connected to the cathode of the diode D9, and the anode of the diode D9 is connected to the resistor RD1. The connection relationship of each component is shown in the figure. The output and shutdown of PWM_OUT are controlled by transistor QW1. When the Motion_SW button is pressed, the level signal changes from high level to low level. After receiving the level change, the Key button feeds back to the MCU. The MCU chip sends the waveform through the PWM_OUT pin. At the same time, PWM_Ctrl sends the corresponding high and low frequency signals to the Direction through the high and low level signals of the button, thereby controlling the drive of the transmission shaft.

[0035] The signal light circuit is an extension of the transmission shaft circuit. It uses pins 3 and 4 of PWM_Ctrl. The positive pole of the external signal light is connected to the 5V position, and GND is connected to the Direction_OUT position. When the Direction_OUT level is low, the light is on, and when it is high, the light is off. The MCU chip square wave makes the Direction_OUT level high and low, and the signal light flashes; this function is mainly used to prompt that the device is in use.

[0036] See also Figure 7 The key circuit includes an up and down switch circuit and a control switch circuit with the same circuit structure. The up and down switch circuit is used to control the rise (Up_Key) and descent (Down_Key) of the lifting shaft. The control switch circuit controls the detection (Start_Key) and stop (Stop_Key) of the device through the measurement button. The upper and lower switch circuit includes the upper and lower switches Motion_SW, inductors CZ4 and CZ5, resistors R5 and RR3, capacitors C13 and C14, one end of the capacitor C13 is connected to the inductor CZ4 and the other end is grounded, the other end of the inductor CZ4 is connected to the third pin of the upper and lower switch Motion_SW, one end of the capacitor C14 is connected to the inductor CZ5 and the other end is grounded, the other end of the inductor CZ5 is connected to the second pin of the upper and lower switch Motion_SW, one end of the resistor R5 is connected in parallel with RR3 and the other end is connected between the inductor CZ4 and the capacitor C13, and the other end of the resistor RR3 is connected between the inductor CZ5 and the capacitor C14; similarly, the control switch circuit includes the control switch Crol_SW, inductors CZ2 and CZ3, resistors R5 and RR1, capacitors C23 and C4, and the connection relationship of each component is shown in the figure. Take Crol_SW as an example (Motion_SW is the same), pin 1 is grounded, pin 2 controls the stop operation, and pin 3 controls the start operation. When the Start_Key button is pressed, Start_Key is connected to the ground line. At this time, Start_Key changes from a high level to a low level. When the MCU chip receives the Start_Key low level signal, it starts the detection. The main function of the key circuit is to allow the MCU chip to receive high and low level signals to realize the key function.

[0037] Combination Figure 8 The serial port external circuit includes a USB to serial port module IC1 and its peripheral circuits, the peripheral circuits include a crystal oscillator X1, capacitors C28, C34, C35, C36, and a resistor R6, and the connection relationship of each component is shown in the figure. Preferably, the USB to serial port module IC1 adopts CH340G. The serial port external circuit realizes the USB to serial port external connection of the urine flow rate detection device to a computer, and the MCU chip sends a ttl signal to the outside through CH340G, that is, sends urine flow detection data.

[0038] Combination Fig. 9The sensor circuit includes an RS232 transceiver U4 and its peripheral circuits. The peripheral circuits include capacitors C1, C2, C3, C5, C6, resistors R1, R3, and the connection relationship of each component is shown in the figure. Preferably, the RS232 transceiver U4 adopts SP3232E. Since the sensor transmits 232 signals, the MCU chip sends a detection weight signal to the sensor through SP3232E at regular intervals. After receiving the command, the sensor sends a signal back to SP3232E, and SP3232E then transmits the data to the MCU chip.

[0039] By adding signal lights, the states of using urine flow rate detection and using the lifting shaft can be differentiated. The signal light flashes when using urine flow rate detection, goes out when the lifting shaft is used upward, and turns on when the lifting shaft is used downward. Adding limiters can improve user safety and prevent damage to the drive shaft by limiting height and height.

[0040] The utility model allows the patient to adjust the urine collecting funnel to a preferred height before testing through external buttons and a lifting shaft. The button operation is more convenient and quick, which speeds up the use efficiency of each testing device to a certain extent, reduces the waiting time of other patients, and increases the user experience.

[0041] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A urine flow rate detection device, characterized in that: It includes a shell, a lifting shaft and an ascending and descending button for controlling the movement of the lifting shaft are installed on the outside of the shell, a urine collecting funnel is fixed on the outside of the lifting shaft, and a measuring button is provided, and a limiter is installed inside the lifting shaft; The shell is equipped with a power supply circuit, an MCU control circuit, a transmission shaft control and signal light circuit connected to the MCU control circuit, a limiter circuit, a button circuit, a serial port external circuit and a sensor circuit. The power supply circuit provides power for each circuit.

2. The urine flow rate detection device according to claim 1, characterized in that: The power supply circuit includes a power supply chip U3 and a linear regulator V1. The 24V voltage is stepped down to 5V through the power supply chip U3 and then stepped down to 3.3V through the linear regulator V1.

3. The urine flow rate detection device according to claim 1, characterized in that: The limiter circuit includes a limit switch A circuit and a limit switch B circuit with the same circuit structure; the limit switch A circuit includes a limit switch A, a transistor QW4, resistors RD8, RD10, RD12, and a capacitor C9, the base of the transistor QW4 is connected to the second pin of the limit switch A through the resistor RD8, and an RC filter circuit composed of a resistor RD12 and a capacitor C9 is connected between the base and the emitter of the transistor QW4; the limit switch B circuit includes a limit switch B, a transistor QW3, resistors RD7, RD9, RD11, and a capacitor C8.

4. The urine flow rate detection device according to claim 1, characterized in that: The transmission shaft control and signal light circuit includes transistors QW1, QW2, diode D9, resistors RD1, RD2, RD3, RD4, RD5, RD6, and port PWM_Ctrl; the base of the transistor QW1 is connected to the PWM pin of the MCU through the resistor RD5, the resistor RD6 is connected in parallel between the base and emitter of the transistor QW1, and the resistor RD2 is connected to the collector of the transistor QW1; the base of the transistor QW2 is connected to the Direction pin of the MCU through the resistor RD3, the resistor RD4 is connected in parallel between the base and emitter of the transistor QW2, the collector of the transistor QW2 is connected to the cathode of the diode D9, and the anode of the diode D9 is connected to the resistor RD1.

5. The urine flow rate detection device according to claim 1, characterized in that: The key circuit includes an upper and lower switch circuit and a control switch circuit with the same circuit structure. The upper and lower switch circuit includes an upper and lower switch Motion_SW, inductors CZ4 and CZ5, resistors R5 and RR3, capacitors C13 and C14, one end of the capacitor C13 is connected to the inductor CZ4 and the other end is grounded, the other end of the inductor CZ4 is connected to the third pin of the upper and lower switch Motion_SW, one end of the capacitor C14 is connected to the inductor CZ5 and the other end is grounded, the other end of the inductor CZ5 is connected to the second pin of the upper and lower switch Motion_SW, one end of the resistor R5 is connected in parallel with RR3 and the other end is connected between the inductor CZ4 and the capacitor C13, and the other end of the resistor RR3 is connected between the inductor CZ5 and the capacitor C14; the control switch circuit includes a control switch Crol_SW, inductors CZ2 and CZ3, resistors R5 and RR1, capacitors C23 and C4.

6. The urine flow rate detection device according to claim 1, characterized in that: The serial port external circuit includes a USB to serial port module IC1 and its peripheral circuits, and the peripheral circuits include a crystal oscillator X1, capacitors C28, C34, C35, C36, and a resistor R6.

7. The urine flow rate detection device according to claim 1, characterized in that: The sensor circuit includes an RS232 transceiver U4 and its peripheral circuits, and the peripheral circuits include capacitors C1, C2, C3, C5, C6, and resistors R1 and R3.

8. The urine flow rate detection device according to claim 1, characterized in that: The MCU control circuit includes an MCU and its peripheral circuits, and the MCU adopts an STM32F103R8T6 chip.

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