Auxiliary urethral catheterization device and use method

Abstract

The invention discloses an auxiliary urinary catheterization device and a using method, and relates to the technical field of medical instruments.The device comprises an upper shell, a lower shell is installed at the lower end of the upper shell, a handle is installed at the lower end of the lower shell, and second clamping frames are installed on the two sides of the upper end of the upper shell; a conveying and intubation mechanism used for moving the catheter is arranged on the upper shell between the two second clamping frames, and a pipeline urine detection mechanism used for detecting whether urine flows out or not is arranged on the side wall of the upper shell on the output sides of the second clamping frames. Two elastic rubber clamping blocks are driven by two conveying belts opposite in rotating direction to clamp and convey a catheter, a manual operation mode is replaced, catheter conveying is more stable and efficient, in the catheter inserting process, catheter inserting resistance is detected in real time through a pressure sensor, catheter inserting is stopped in time when catheter inserting is blocked, and the catheter inserting efficiency is improved. And the alarm lamp gives an alarm to prompt medical staff to adjust the intubation direction, so that the urethra of the patient is prevented from being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an auxiliary urinary catheterization device and a use method thereof. Background Art

[0002] Catheterization involves inserting a catheter into the bladder through the urethra to drain urine. There are two types of catheterization: indwelling catheterization and intermittent catheterization. In the former, the catheter remains in the patient's body and should be removed as soon as the patient's condition permits. It must be replaced regularly. In the latter, catheterization is performed every 4-6 hours, and the catheter is removed once the bladder is empty. The indwelling catheterization procedure involves inserting the catheter to an appropriate depth (4-6 cm for women, 20-22 cm for men), and then inserting it another 5-7 cm after urine is seen flowing out. The catheter is then secured and connected to a drainage bag. Alternatively, the procedure can be changed during the procedure (connecting the drainage bag first).

[0003] Existing catheterization operations are mostly performed manually, with low intubation efficiency. Medical staff easily get tired after bending over for a long time. At the same time, when inserting the last 5-7cm of the catheter, there is no scale mark, so medical staff can only operate by feel, and the operation accuracy is poor.

[0004] In view of the above problems, an improved auxiliary urinary catheterization device and a method of use are now designed. Summary of the Invention

[0005] The object of the present invention is to provide an auxiliary urinary catheterization device and a method of use to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An auxiliary urinary catheterization device includes an upper shell, a lower shell is installed at the lower end of the upper shell, and a handle is installed at the lower end of the lower shell for medical staff to hold. Second clamping frames for limiting the position of a urinary catheter are installed on both sides of the upper end of the upper shell, and the inner diameter of the second clamping frames is larger than the diameter of the urinary catheter, so that the urinary catheter can slide along the inner wall of the second clamping frames. A conveying and cannulation mechanism for moving the urinary catheter is provided on the upper shell between the two second clamping frames, and a pipeline urine detection mechanism for detecting whether urine has flowed out is provided on the side wall of the upper shell on the output side of the second clamping frame.

[0008] As a further solution of the present invention: the intubation conveying mechanism includes two driving wheels, the two driving wheels are symmetrically arranged at the upper end of the upper shell body, the two driving wheels are symmetrical axis with the catheter, a first rotating rod is installed at the center position of the driving wheel, the lower end of the first rotating rod passes through the top of the upper shell body and is rotatably connected to the bottom of the upper shell body, the driving wheel is close to the upper end of the upper shell body in the conveying direction of the catheter and is rotatably connected to a number of driven wheels, a conveyor belt is sleeved on the driving wheel and the driven wheel, the catheter passes through the two conveyor belts, and a connecting strip is vertically installed on the side wall of the conveyor belt, the two connecting strips are symmetrically arranged with the catheter, a mounting plate is installed at one end of the connecting strip away from the conveyor belt, a fixing block is provided at one end of the mounting plate away from the connecting strip, and an elastic rubber clamp is installed at one end of the fixing block away from the mounting plate, and the two elastic rubber clamps cooperate with each other to clamp and convey the catheter, a driving component for driving the first rotating rod to rotate is provided inside the upper shell body, and a resistance detection component for detecting whether the intubation is blocked is provided on the mounting plate.

[0009] As a further solution of the present invention: the drive assembly includes a worm, a worm wheel is installed on the side wall of the first rotating rod inside the upper shell, the worm is horizontally arranged between the two worm wheels, the two worm wheels and the worm are engaged with each other, a second rotating rod is installed at the center position of the worm, and a motor for driving the second rotating rod to rotate is installed at one end of the second rotating rod, the motor is installed on the inner wall of the upper shell, and the end of the second rotating rod away from the motor is rotatably connected to the inner wall of the upper shell, a controller and a first battery are installed at the bottom of the lower shell, and a switch for controlling the start and stop of the motor is installed on the handle.

[0010] As a further solution of the present invention: the resistance detection component includes a fixed frame, which is installed at an end of the mounting plate away from the connecting strip. When the two elastic rubber clamps transport the catheter, the fixed block moves toward the fixed frame. A pressure sensor is installed on the inner wall of the fixed frame away from the fixed block. A second battery for powering the pressure sensor is installed inside the fixed frame. A wireless signal transmitter for receiving pressure sensor data signals and sending the data signals to a controller is installed inside the fixed frame. A first movable plate is installed at the detection end of the pressure sensor, which moves along the inner wall of the fixed frame. A spring is installed at the end of the first movable plate away from the pressure sensor. A second movable plate is installed at the end of the spring away from the first movable plate. The second movable plate moves along the inner wall of the fixed frame. A sliding rod is installed at the end of the second movable plate away from the spring. The end of the sliding rod away from the second movable plate passes through the fixed frame and is installed on the side wall of the fixed block. An alarm light for warning is installed on the side wall of the upper shell.

[0011] As a further solution of the present invention: the pipeline urine detection mechanism includes a support plate, which is horizontally installed on the side wall of the upper shell on the output side of the second card frame. The upper end of the support plate is equipped with a photoelectric pipeline liquid level sensor for detecting whether there is urine in the catheter. The catheter slides along the inner wall of the photoelectric pipeline liquid level sensor. The catheter is a transparent tube. The upper end of the support plate on the side of the photoelectric pipeline liquid level sensor away from the upper shell is equipped with a first card frame for limiting the catheter. The shape and size of the first card frame are exactly the same as those of the second card frame. The central axes of the two second card frames, the photoelectric pipeline liquid level sensor and the first card frame are on the same straight line.

[0012] As a further solution of the present invention, a rubber sleeve is installed on the side wall of the handle to facilitate the medical staff to hold and operate.

[0013] As a further solution of the present invention: balls are installed on the side walls of the first movable plate and the second movable plate to facilitate the movement of the first movable plate and the second movable plate along the inner wall of the fixed frame.

[0014] As a further solution of the present invention: support bars for supporting the mounting plate are installed at both ends of the side walls of the mounting plate close to the connecting bar.

[0015] As a further solution of the present invention: a triangular rib for supporting the support plate is installed at the lower end of the support plate, and one end of the triangular rib close to the upper shell is installed on the side wall of the upper shell.

[0016] The present invention also discloses a method for using the auxiliary urinary catheterization device, comprising the following steps:

[0017] Step 1: Place the transparent catheter in the second card frame, between the two conveyor belts, inside the photoelectric pipe liquid level sensor and the first card frame. The medical staff then inserts the insertion head of the catheter into the patient's urethra first, and then presses the switch to start the motor. The output end of the motor drives the second rotating rod to rotate, the second rotating rod drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear drives the first rotating rod to rotate, the first rotating rod drives the driving wheel to rotate, the driving wheel drives the conveyor belt to rotate, the conveyor belt drives the connecting bar to rotate, the connecting bar drives the mounting plate to rotate, the mounting plate drives the fixed frame to move, the fixed frame drives the second movable plate and the slide rod to move, the slide rod drives the fixed block to move, the fixed block drives the elastic rubber clamp block to rotate, and the two elastic rubber clamp blocks cooperate with each other to clamp and transport the catheter.

[0018] Step 2: During the intubation process, due to the effect of the conveying resistance, the elastic rubber clamp drives the fixed block to move toward the fixed frame, the fixed block pushes the slide bar to move, the slide bar pushes the second movable plate to move, the second movable plate pushes the spring to move, the spring squeezes the first movable plate, the first movable plate squeezes the detection end of the pressure sensor, the pressure sensor transmits the detected pressure value to the wireless signal transmitter, the wireless signal transmitter sends the signal to the controller, the controller compares and analyzes the detected pressure value, when the insertion of the catheter is blocked, the pressure value detected by the pressure sensor will increase, greater than the pressure setting value, the controller controls the motor to stop, and starts the alarm light to light up the alarm, so that the medical staff can adjust the direction of the catheter, and then start the motor again to perform the intubation operation.

[0019] Step 3: When urine appears in the catheter, the photoelectric pipe liquid level sensor will detect the urine, and then the photoelectric pipe liquid level sensor will send a signal to the controller. The controller controls the rotation time of the motor so that the two elastic rubber clamps can transport the catheter another 5-7cm, and then automatically stop the motor to complete the catheterization operation.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention uses two conveyor belts with opposite rotation directions to drive two elastic rubber clamps to clamp and transport the urinary catheter, replacing the manual operation mode, and the catheterization and transportation are more stable and efficient.

[0022] During the intubation process, the present invention detects the intubation resistance in real time through a pressure sensor. When the intubation is blocked, the intubation is stopped in time, and an alarm light is used to alert medical staff to adjust the intubation direction to avoid damage to the patient's urethra and improve the safety of intubation.

[0023] The present invention uses a photoelectric pipe liquid level sensor to detect whether there is urine flowing in the catheter. When urine flows out, the photoelectric pipe liquid level sensor sends a signal to the controller, and the controller controls the motor to transport the last 5-7 cm of urine through the catheter. The transportation length can be accurately controlled, which is convenient for medical staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2 Schematic diagram of the structure of the driving component in the present invention.

[0026] Figure 3 It is a schematic diagram of the structure inside the lower shell of the present invention.

[0027] Figure 4 Schematic diagram of the structure of the resistance detection component in the present invention.

[0028] Among them: 1. upper shell; 2. lower shell; 3. driven wheel; 4. alarm light; 5. switch; 6. handle; 7. support plate; 8. first clamping frame; 9. photoelectric pipe level sensor; 10. conveyor belt; 11. fixed block; 12. elastic rubber clamping block; 13. fixed frame; 14. mounting plate; 15. driving wheel; 16. second clamping frame; 17. first rotating rod; 18. worm gear; 19. worm; 20. second rotating rod; 21. motor; 22. controller; 23. first battery; 24. connecting strip; 25. second battery; 26. pressure sensor; 27. wireless signal transmitter; 28. first movable plate; 29. ​​spring; 30. second movable plate; 31. sliding rod. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-4 In an embodiment of the present invention, an auxiliary urinary catheterization device includes an upper shell 1, a lower shell 2 is installed at the lower end of the upper shell 1, and a handle 6 is installed at the lower end of the lower shell 2 for medical staff to hold. Second clamping frames 16 for limiting the position of the urinary catheter are installed on both sides of the upper end of the upper shell 1. The inner diameter of the second clamping frame 16 is larger than the diameter of the urinary catheter, so that the urinary catheter can slide along the inner wall of the second clamping frame 16. A conveying and cannulation mechanism for moving the urinary catheter is provided on the upper shell 1 between the two second clamping frames 16, and a pipeline urine detection mechanism for detecting whether urine has flowed out is provided on the side wall of the upper shell 1 on the output side of the second clamping frame 16.

[0031] The cannula transport mechanism includes two driving wheels 15, which are symmetrically arranged at the upper end of the upper shell 1. The two driving wheels 15 are symmetrically arranged with the catheter as the axis of symmetry. A first rotating rod 17 is installed at the center of the driving wheel 15. The lower end of the first rotating rod 17 passes through the top of the upper shell 1 and is rotatably connected to the bottom of the upper shell 1. The driving wheel 15 is rotatably connected to the upper end of the upper shell 1 near the direction of conveying the catheter. A plurality of driven wheels 3 are installed on the driving wheel 15 and the driven wheel 3. A conveyor belt 10 is provided on the driving wheel 15 and the driven wheel 3. The catheter passes between the two conveyor belts 10. A vertical shaft 17 is installed on the side wall of the conveyor belt 10. A connecting strip 24 is provided, and the two connecting strips 24 are symmetrically arranged with the catheter. A mounting plate 14 is installed at the end of the connecting strip 24 away from the conveyor belt 10, and a fixing block 11 is provided at the end of the mounting plate 14 away from the connecting strip 24. An elastic rubber clamping block 12 is installed at the end of the fixing block 11 away from the mounting plate 14. The two elastic rubber clamping blocks 12 cooperate with each other to clamp and transport the catheter. A driving component for driving the first rotating rod 17 to rotate is provided inside the upper shell 1, and a resistance detection component for detecting whether the intubation is blocked is provided on the mounting plate 14.

[0032] The drive assembly includes a worm 19, and a worm wheel 18 is installed on the side wall of the first rotating rod 17 inside the upper shell 1. The worm 19 is horizontally arranged between the two worm wheels 18, and the two worm wheels 18 are engaged with the worm 19. A second rotating rod 20 is installed at the center position of the worm 19, and a motor 21 for driving the second rotating rod 20 to rotate is installed at one end of the second rotating rod 20. The motor 21 is installed on the inner wall of the upper shell 1, and the end of the second rotating rod 20 away from the motor 21 is rotatably connected to the inner wall of the upper shell 1. A controller 22 and a first battery 23 are installed at the bottom of the lower shell 2, and a switch 5 for controlling the start and stop of the motor 21 is installed on the handle 6.

[0033] During use, the switch 5 is pressed to start the motor 21. The output end of the motor 21 drives the second rotating rod 20 to rotate, the second rotating rod 20 drives the worm 19 to rotate, the worm 19 drives the worm gear 18 to rotate, the worm gear 18 drives the first rotating rod 17 to rotate, the first rotating rod 17 drives the driving wheel 15 to rotate, the driving wheel 15 drives the conveyor belt 10 to rotate, the conveyor belt 10 drives the connecting strip 24 to rotate, the connecting strip 24 drives the mounting plate 14 to rotate, the mounting plate 14 drives the fixing block 11 to rotate, the fixing block 11 drives the elastic rubber clamping block 12 to rotate, and the two elastic rubber clamping blocks 12 cooperate with each other to clamp and convey the urinary catheter.

[0034] The resistance detection assembly includes a fixed frame 13, which is mounted on one end of the mounting plate 14 away from the connecting strip 24. When the two elastic rubber clamps 12 transport the catheter, the fixed block 11 moves toward the fixed frame 13. A pressure sensor 26 is installed on the inner wall of the fixed frame 13 away from the fixed block 11. A second battery 25 for powering the pressure sensor 26 is installed inside the fixed frame 13. A wireless signal transmitter 27 for receiving data signals from the pressure sensor 26 and sending the data signals to the controller 22 is installed inside the fixed frame 13. The pressure sensor 26 A first movable plate 28 is installed at the detection end, and the first movable plate 28 moves along the inner wall of the fixed frame 13. A spring 29 is installed at the end of the first movable plate 28 away from the pressure sensor 26. A second movable plate 30 is installed at the end of the spring 29 away from the first movable plate 28. The second movable plate 30 moves along the inner wall of the fixed frame 13. A sliding rod 31 is installed at the end of the second movable plate 30 away from the spring 29. The end of the sliding rod 31 away from the second movable plate 30 passes through the fixed frame 13 and is installed on the side wall of the fixed block 11. An alarm light 4 for warning is installed on the side wall of the upper shell 1.

[0035] During use, due to the effect of conveying resistance, the elastic rubber clamping block 12 drives the fixed block 11 to move toward the fixed frame 13, the fixed block 11 pushes the sliding rod 31 to move, the sliding rod 31 pushes the second movable plate 30 to move, the second movable plate 30 pushes the spring piece 29 to move, the spring piece 29 squeezes the first movable plate 28, and the first movable plate 28 squeezes the detection end of the pressure sensor 26. The pressure sensor 26 transmits the detected pressure value to the wireless signal transmitter 27, and the wireless signal transmitter 27 sends the signal to the controller 22. The controller 22 compares and analyzes the detected pressure values. When the insertion of the catheter is blocked, the pressure value detected by the pressure sensor 26 will increase and be greater than the pressure setting value. The controller 22 controls the motor 21 to stop and starts the alarm light 4 to light an alarm, so that the medical staff can adjust the direction of the catheter, and then starts the motor 21 again to perform the intubation operation.

[0036] The pipeline urine detection mechanism includes a support plate 7, which is horizontally mounted on the side wall of the upper shell 1 on the output side of the second card frame 16. The upper end of the support plate 7 is equipped with a photoelectric pipeline liquid level sensor 9 for detecting whether there is urine in the catheter. The catheter slides along the inner wall of the photoelectric pipeline liquid level sensor 9. The catheter is a transparent tube. The upper end of the support plate 7 on the side of the photoelectric pipeline liquid level sensor 9 away from the upper shell 1 is equipped with a first card frame 8 for limiting the position of the catheter. The shape and size of the first card frame 8 are exactly the same as those of the second card frame 16. The central axes of the two second card frames 16, the photoelectric pipeline liquid level sensor 9 and the first card frame 8 are on the same straight line.

[0037] When urine appears in the catheter, the photoelectric pipe liquid level sensor 9 will detect the urine, and then the photoelectric pipe liquid level sensor 9 will send a signal to the controller 22. The controller 22 controls the rotation time of the motor 21, so that the two elastic rubber clamps 12 can transport the catheter for another 5-7cm, and then automatically stop the motor 21.

[0038] Working principle of an auxiliary catheterization device:

[0039] Place the transparent catheter between the second card frame 16, the two conveyor belts 10, the photoelectric pipe liquid level sensor 9 and the first card frame 8, and then the medical staff inserts the insertion head of the catheter into the patient's urethra first, and then presses the switch 5 to start the motor 21. The output end of the motor 21 drives the second rotating rod 20 to rotate, the second rotating rod 20 drives the worm 19 to rotate, the worm 19 drives the worm gear 18 to rotate, the worm gear 18 drives the first rotating rod 17 to rotate, the first rotating rod 17 drives the driving wheel 15 to rotate, the driving wheel 15 drives the conveyor belt 10 to rotate, the conveyor belt 10 drives the connecting strip 24 to rotate, the connecting strip 24 drives the mounting plate 14 to rotate, the mounting plate 14 drives the fixed frame 13 to move, the fixed frame 13 drives the second movable plate 30 and the slide bar 31 to move, the slide bar 31 drives the fixed block 11 to move, the fixed block 11 drives the elastic rubber clamping block 12 to rotate, and the two elastic rubber clamping blocks 12 cooperate with each other to clamp and transport the catheter.

[0040] During the intubation process, due to the effect of the conveying resistance, the elastic rubber clamping block 12 drives the fixed block 11 to move toward the fixed frame 13, the fixed block 11 pushes the sliding rod 31 to move, the sliding rod 31 pushes the second movable plate 30 to move, the second movable plate 30 pushes the spring 29 to move, the spring 29 squeezes the first movable plate 28, and the first movable plate 28 squeezes the detection end of the pressure sensor 26. The pressure sensor 26 transmits the detected pressure value to the wireless signal transmitter 27, and the wireless signal transmitter 27 sends the signal to the controller 22. The controller 22 compares and analyzes the detected pressure values. When the insertion of the catheter is blocked, the pressure value detected by the pressure sensor 26 will increase and be greater than the pressure setting value. The controller 22 controls the motor 21 to stop and starts the alarm light 4 to light an alarm, so that the medical staff can adjust the direction of the catheter, and then starts the motor 21 again to perform the intubation operation.

[0041] When urine appears in the catheter, the photoelectric pipe liquid level sensor 9 will detect the urine, and then the photoelectric pipe liquid level sensor 9 will send a signal to the controller 22. The controller 22 controls the rotation time of the motor 21, so that the two elastic rubber clamps 12 can transport the catheter another 5-7cm, and then automatically stop the motor 21 to complete the catheterization operation.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. An auxiliary urinary catheterization device, comprising an upper shell (1), a lower shell (2) is installed at the lower end of the upper shell (1), a handle (6) is installed at the lower end of the lower shell (2) for medical personnel to hold, and second clamping frames (16) for limiting the position of a urinary catheter are installed on both sides of the upper end of the upper shell (1), the inner diameter of the second clamping frame (16) is larger than the diameter of the urinary catheter, so that the urinary catheter can slide along the inner wall of the second clamping frame (16), characterized in that: A conveying and inserting mechanism for moving the urinary catheter is arranged on the upper shell (1) between the two second clamping frames (16), and a pipeline urine detection mechanism for detecting whether urine has flowed out is arranged on the side wall of the upper shell (1) on the output side of the second clamping frame (16).

2. An auxiliary urinary catheterization device according to claim 1, characterized in that: The catheter transporting mechanism comprises two driving wheels (15), the two driving wheels (15) are symmetrically arranged at the upper end of the upper shell (1), the two driving wheels (15) are symmetrically arranged with the catheter as the axis of symmetry, a first rotating rod (17) is installed at the center of the driving wheel (15), the lower end of the first rotating rod (17) passes through the top of the upper shell (1) and is rotatably connected to the bottom of the upper shell (1), the driving wheel (15) is rotatably connected to a plurality of driven wheels (3) at the upper end of the upper shell (1) close to the catheter transporting direction, a conveyor belt (10) is sleeved on the driving wheel (15) and the driven wheel (3), the catheter passes between the two conveyor belts (10), and the side wall of the conveyor belt (10) is provided with a plurality of driven wheels (3) at the upper end of the upper shell (1) close to the catheter transporting direction. A connecting strip (24) is vertically installed, and the two connecting strips (24) are symmetrically arranged with respect to the urinary catheter. A mounting plate (14) is installed at one end of the connecting strip (24) away from the conveyor belt (10), and a fixing block (11) is installed at one end of the mounting plate (14) away from the connecting strip (24). An elastic rubber clamping block (12) is installed at one end of the fixing block (11) away from the mounting plate (14). The two elastic rubber clamping blocks (12) cooperate with each other to clamp and transport the urinary catheter. A driving component for driving the first rotating rod (17) to rotate is arranged inside the upper shell (1), and a resistance detection component for detecting whether the insertion of the catheter is blocked is arranged on the mounting plate (14).

3. An auxiliary urinary catheterization device according to claim 2, characterized in that: The driving assembly comprises a worm (19), a worm wheel (18) is installed on the side wall of the first rotating rod (17) inside the upper shell (1), the worm (19) is horizontally arranged between the two worm wheels (18), the two worm wheels (18) and the worm (19) are meshed with each other, a second rotating rod (20) is installed at the center of the worm (19), one end of the second rotating rod (20) is installed with a motor (21) for driving the second rotating rod (20) to rotate, the motor (21) is installed on the inner wall of the upper shell (1), one end of the second rotating rod (20) away from the motor (21) is rotatably connected to the inner wall of the upper shell (1), a controller (22) and a first battery (23) are installed at the bottom of the lower shell (2), and a switch (5) for controlling the start and stop of the motor (21) is installed on the handle (6).

4. An auxiliary urinary catheterization device according to claim 2, characterized in that: The resistance detection assembly comprises a fixed frame (13), the fixed frame (13) being mounted on one end of the mounting plate (14) away from the connecting strip (24), when the two elastic rubber clamping blocks (12) transport the urinary catheter, the fixed block (11) moves toward the fixed frame (13), a pressure sensor (26) is mounted on the inner wall of the fixed frame (13) away from the fixed block (11), a second battery (25) for powering the pressure sensor (26) is mounted inside the fixed frame (13), a wireless signal transmitter (27) for receiving a data signal of the pressure sensor (26) and sending the data signal to the controller (22) is mounted inside the fixed frame (13), and the detection of the pressure sensor (26) is performed by the fixed frame (13). A first movable plate (28) is installed at the measuring end, the first movable plate (28) moves along the inner wall of the fixed frame (13), an elastic sheet (29) is installed at one end of the first movable plate (28) away from the pressure sensor (26), a second movable plate (30) is installed at one end of the elastic sheet (29) away from the first movable plate (28), the second movable plate (30) moves along the inner wall of the fixed frame (13), a sliding rod (31) is installed at one end of the second movable plate (30) away from the elastic sheet (29), and one end of the sliding rod (31) away from the second movable plate (30) passes through the fixed frame (13) and is installed on the side wall of the fixed block (11), and an alarm light (4) for warning alarm is installed on the side wall of the upper shell (1).

5. An auxiliary urinary catheterization device according to claim 1, characterized in that: The pipeline urine detection mechanism comprises a support plate (7), the support plate (7) being horizontally mounted on the side wall of the upper shell (1) at the output side of the second card frame (16), a photoelectric pipeline liquid level sensor (9) for detecting whether there is urine in the catheter being mounted on the upper end of the support plate (7), the catheter sliding along the inner wall of the photoelectric pipeline liquid level sensor (9), the catheter being a transparent tube, a first card frame (8) for limiting the position of the catheter being mounted on the upper end of the support plate (7) at the side of the photoelectric pipeline liquid level sensor (9) away from the upper shell (1), the shape and size of the first card frame (8) being exactly the same as those of the second card frame (16), and the central axes of the two second card frames (16), the photoelectric pipeline liquid level sensor (9) and the first card frame (8) being on the same straight line.

6. An auxiliary urinary catheterization device according to claim 1, characterized in that: A rubber sleeve is installed on the side wall of the handle (6) to facilitate the medical staff to hold and operate.

7. An auxiliary urinary catheterization device according to claim 4, characterized in that: Ball bearings are installed on the side walls of the first movable plate (28) and the second movable plate (30) to facilitate the first movable plate (28) and the second movable plate (30) to move along the inner wall of the fixed frame (13).

8. An auxiliary urinary catheterization device according to claim 2, characterized in that: Support bars for supporting the mounting plate (14) are installed at both ends of the side wall of the mounting plate (14) close to the connecting bar (24).

9. An auxiliary urinary catheterization device according to claim 5, characterized in that: A triangular rib plate for supporting the support plate (7) is installed at the lower end of the support plate (7), and one end of the triangular rib plate close to the upper shell (1) is installed on the side wall of the upper shell (1).

10. A method for using the auxiliary urinary catheterization device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Place the transparent urinary catheter between the second card frame (16), the two conveyor belts (10), the photoelectric pipeline liquid level sensor (9) and the first card frame (8), and then the medical staff inserts the insertion head of the urinary catheter into the patient's urethra, and then presses the switch (5) to start the motor (21), the output end of the motor (21) drives the second rotating rod (20) to rotate, the second rotating rod (20) drives the worm (19) to rotate, the worm (19) drives the worm wheel (18) to rotate, the worm wheel (18) drives the first rotating rod (17) to rotate, and the first rotating rod (17) drives the worm wheel (18) to rotate. The rod (17) drives the driving wheel (15) to rotate, the driving wheel (15) drives the conveyor belt (10) to rotate, the conveyor belt (10) drives the connecting bar (24) to rotate, the connecting bar (24) drives the mounting plate (14) to rotate, the mounting plate (14) drives the fixed frame (13) to move, the fixed frame (13) drives the second movable plate (30) and the sliding rod (31) to move, the sliding rod (31) drives the fixed block (11) to move, the fixed block (11) drives the elastic rubber clamping block (12) to rotate, and the two elastic rubber clamping blocks (12) cooperate with each other to clamp and transport the urinary catheter; Step 2: During the intubation process, due to the effect of the transport resistance, the elastic rubber clamp block (12) drives the fixed block (11) to move toward the fixed frame (13), the fixed block (11) pushes the slide bar (31) to move, the slide bar (31) pushes the second movable plate (30) to move, the second movable plate (30) pushes the spring sheet (29) to move, the spring sheet (29) squeezes the first movable plate (28), the first movable plate (28) squeezes the detection end of the pressure sensor (26), and the pressure sensor (26) detects the pressure value. The signal is transmitted to the wireless signal transmitter (27), and the wireless signal transmitter (27) sends the signal to the controller (22). The controller (22) compares and analyzes the detected pressure values. When the insertion of the urinary catheter is blocked, the pressure value detected by the pressure sensor (26) increases and is greater than the pressure setting value. The controller (22) controls the motor (21) to stop, and starts the alarm light (4) to emit an alarm, so that the medical staff can adjust the direction of the urinary catheter, and then starts the motor (21) again to perform the insertion operation; Step 3: When urine appears in the catheter, the photoelectric pipe liquid level sensor (9) will detect the urine, and then the photoelectric pipe liquid level sensor (9) will send a signal to the controller (22). The controller (22) controls the rotation time of the motor (21) so that the two elastic rubber clamps (12) can transport the catheter for another 5-7 cm, and then automatically stop the motor (21), completing the catheterization operation.

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