Intestinal obstruction catheter with real-time pressure regulation

Abstract

This invention provides an intestinal obstruction catheter with real-time pressure regulation, relating to the field of medical catheter technology. It includes a handheld device with a catheter body connected to it. One end of the catheter body is connected to a suction pump. The catheter body contains a guidewire channel, a pressure regulation channel, and an air inlet channel. A connecting tube is installed on the catheter body, communicating with the pressure regulation channel. The pressure regulation channel has several pressure regulation holes. An intelligent solenoid valve is located at the other end of the connecting tube. A flow sensor and a pressure sensor are located within the pressure regulation channel. A PCB control component is also located within the handheld device. The intelligent solenoid valve, suction pump, flow sensor, pressure sensor, and PCB control component are electrically connected. Through real-time feedback from the flow and pressure sensors, and rapid calculations by the PCB control component, intelligent suction by the suction pump and real-time dynamic adjustment of the intelligent solenoid valve are achieved, avoiding excessive pressure in the intestine and reducing intestinal damage.

Description

Technical Field

[0001] This utility model relates to the field of medical catheter technology, specifically to an intestinal obstruction catheter with real-time pressure regulation. Background Technology

[0002] Any obstruction of the passage of intestinal contents, regardless of the cause, is collectively referred to as intestinal obstruction, and is one of the common surgical acute abdominal conditions. Acute intestinal obstruction is sometimes difficult to diagnose, progresses rapidly, and causes imbalances in water, electrolytes, and acid-base levels; failure to treat it promptly can lead to serious consequences.

[0003] In existing intestinal obstruction catheters, the process of aspirating contents from the main lumen of the intestine can easily lead to intestinal wall contraction, thereby altering the intestinal pressure and hindering further aspiration. Typically, the suction force is adjusted based on the doctor's experience, which is prone to errors and slow adjustments, potentially causing intestinal damage. Furthermore, existing intestinal obstruction catheters generally use a one-way valve to release air; when the intestinal pressure exceeds a certain threshold, the valve automatically opens to release air. This method only allows for depressurization when the intestinal pressure is high, which can easily cause injury and discomfort to the patient. Utility Model Content

[0004] This invention provides an intestinal obstruction catheter with real-time pressure regulation to solve at least one of the problems mentioned in the background art.

[0005] To address the aforementioned technical problems, this utility model discloses an intestinal obstruction catheter with real-time pressure regulation, comprising a handheld device, a catheter body connected to the handheld device, a suction pump connected to one end of the catheter body, a guide wire channel, a pressure regulation channel, and an air inlet channel within the catheter body, a connecting pipe installed on the catheter body, the connecting pipe communicating with the pressure regulation channel, a plurality of pressure regulation holes provided on the pressure regulation channel, an intelligent solenoid valve provided at the other end of the connecting pipe, a flow sensor and a pressure sensor provided within the pressure regulation channel, and a PCB control component provided within the handheld device, wherein the intelligent solenoid valve, the suction pump, the flow sensor, the pressure sensor, and the PCB control component are electrically connected.

[0006] Preferably, the handheld device is also connected to an inlet pipe and a water inlet pipe, both of which are connected to the guide wire channel; a guide wire is provided in the guide wire channel, and the handheld device is also provided with a display screen, which is electrically connected to the PCB control component.

[0007] Preferably, there are two air intake channels, and two air intake pipes are connected through the duct body. An air intake valve is fixedly installed at the end of the air intake pipe away from the duct body, and the air intake pipe is connected through the air intake channel.

[0008] Preferably, airbags are connected to both air intake channels, with one air intake pipe connected to one airbag and the other air intake pipe connected to the other airbag.

[0009] Preferably, the other end of the intelligent solenoid valve is connected to the output pipe, and a mechanical pressure-regulating safety valve is installed on the output pipe.

[0010] A mechanical pressure-regulating safety valve is installed on the output pipe.

[0011] Preferably, the mechanical pressure regulating safety valve includes a hollow baffle plate, which is disposed on the output pipe. The hollow baffle plate passes through the output pipe longitudinally and is connected to the output pipe. A valve plate is slidably disposed inside the hollow baffle plate, and an irregularly shaped through groove is provided on the valve plate.

[0012] Preferably, a threaded rod is fixedly provided on the upper end of the valve plate, and a stepped threaded cap is threadedly connected to the threaded rod.

[0013] Preferably, a voltage regulator tube is also connected through the output tube, a movable plate is slidably arranged inside the voltage regulator tube, a connecting rod is fixedly arranged on the movable plate, the upper end of the connecting rod extends out of the voltage regulator tube, and the upper end of the connecting rod is fixedly connected to the movable block.

[0014] Preferably, a spring is fixedly installed at the lower end of the movable block, the spring is sleeved on the connecting rod, and the other end of the spring is fixedly connected to the upper end of the voltage stabilizing tube.

[0015] Preferably, a synchronizing rod is fixedly installed on the movable block, and a movable ring is fixedly connected to the other end of the synchronizing rod. The movable ring is sleeved on the threaded rod, and the upper end of the movable ring is rotatably connected to the stepped threaded cap.

[0016] Compared with existing technologies, this invention provides an intestinal obstruction catheter with real-time pressure regulation. Through real-time feedback from flow and pressure sensors, and rapid calculation by the PCB control component, the signals are transmitted to the intelligent solenoid valve and suction pump. This enables intelligent suction by the suction pump and real-time dynamic adjustment of the intelligent solenoid valve, forming a closed loop of "adjustment-feedback-suction readjustment". It eliminates the need for doctors' experience and greatly reduces errors. It can adjust in time according to feedback, making suction gentler and smoother, effectively reducing intestinal damage. It also ensures pressure balance within the intestine, avoiding excessive pressure inside the intestine and further reducing intestinal damage. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the catheter body of this utility model;

[0020] Figure 3 This is a schematic diagram of the mechanical pressure-stabilizing safety valve of this utility model;

[0021] Figure 4 This is a schematic diagram showing the cooperation between the valve plate and the hollow baffle of this utility model.

[0022] In the diagram: 1. Handheld device; 2. Inlet pipe; 3. Water inlet pipe; 4. Air inlet valve; 5. Air inlet pipe; 6. Intelligent solenoid valve; 7. Connecting pipe; 8. Conduit body; 9. Airbag; 10. Pressure regulating hole; 11. Guide wire; 12. Guide wire channel; 13. Air inlet channel; 14. Pressure regulating channel; 15. Pressure stabilizing pipe; 16. Connecting rod; 17. Moving plate; 18. Spring; 19. Moving block; 20. Synchronizing rod; 21. Stepped threaded cap; 22. Moving ring; 23. Threaded rod; 24. Valve plate; 25. Hollow baffle; 26. Irregularly shaped through groove; 27. Output pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1

[0027] An embodiment of this utility model provides an intestinal obstruction catheter with real-time pressure regulation, such as... Figures 1-2 As shown, the device includes a handheld device 1, with a conduit body 8 connected to the handheld device 1. One end of the conduit body 8 is connected to a suction pump. The conduit body 8 is provided with a guide wire channel 12, a pressure regulating channel 14, and an air inlet channel 13. A connecting pipe 7 is installed on the conduit body 8, and the connecting pipe 7 communicates with the pressure regulating channel 14. The pressure regulating channel 14 is provided with several pressure regulating holes 10. The other end of the connecting pipe 7 is provided with an intelligent solenoid valve 6. A flow sensor and a pressure sensor are provided in the pressure regulating channel 14. The handheld device 1 is also provided with a PCB control component. The intelligent solenoid valve 6, the suction pump, the flow sensor, the pressure sensor, and the PCB control component are electrically connected.

[0028] The working principle and beneficial effects of the above technical solution are as follows: When the catheter body 8 is inserted into the intestine, the suction pump starts to suction. The flow sensor and pressure sensor will monitor the pressure and flow in the connecting tube 7 in real time, and then feed back to the PCB control component. The PCB control component controls the intelligent solenoid valve 6 and the suction pump, and adjusts the opening and closing of the intelligent solenoid valve 6 and the suction force of the suction pump. The gas in the intestine will be discharged from the intelligent solenoid valve 6 after passing through several pressure regulating holes 10, pressure regulating channels 14 and connecting tube 7.

[0029] Through real-time feedback from flow and pressure sensors, and rapid calculations by the PCB control components, signals are transmitted to the intelligent solenoid valve and suction pump. This enables intelligent suction by the suction pump and real-time dynamic adjustment of the intelligent solenoid valve, forming a closed loop of "adjustment-feedback-suction readjustment." This eliminates the need for experienced physicians, significantly reducing errors. It allows for timely adjustments based on feedback, resulting in gentler and smoother suction, effectively reducing intestinal damage. It also ensures pressure balance within the intestines, preventing excessive pressure and further minimizing intestinal injury.

[0030] Example 2

[0031] Based on the above embodiment 1, as follows Figures 1-2 As shown, the handheld device 1 is also connected to an inlet pipe 2 and a water inlet pipe 3, both of which are connected to the guide wire channel 12. A guide wire 11 is provided in the guide wire channel 12. The handheld device 1 is also equipped with a display screen, which is electrically connected to the PCB control component.

[0032] A camera is installed on the guide wire 11, and the display screen is electrically connected to the camera;

[0033] Preferably, there are two air intake channels 13, and two air intake pipes 5 are connected through the duct body 8. An air intake valve 4 is fixedly installed at the end of the air intake pipe 5 away from the duct body 8, and the air intake pipe 5 is connected through the air intake channel 13.

[0034] Preferably, airbags 9 are connected to both air intake channels 13, with one air intake pipe 5 connected to one airbag 9 and the other air intake pipe 5 connected to the other airbag 9.

[0035] The working principle and beneficial effects of the above technical solution are as follows: After the guidewire 11 enters the intestine, it can enter the designated part of the intestine more quickly through the guide catheter body 8, reducing the patient's pain; the display screen can display the image captured by the camera on the guidewire 11; when the catheter body 8 reaches the designated position, the air inlet valve 4 is opened, and the two air inlet pipes 5 will inflate the two air balloons 9. After the air balloons 9 expand, they will come into contact with the intestine, fixing the catheter body 8 in the pathological position, making aspiration more convenient; through the water inlet pipe 3, water can be injected into the intestine, making the intestine more moist and the aspiration effect better. In addition, the water injection operation can also clean the camera in real time.

[0036] Example 3

[0037] Based on the above embodiments 1-2, such as Figures 3-4 As shown, the other end of the intelligent solenoid valve 6 is connected to the output pipe 27, and a mechanical pressure regulating safety valve is installed on the output pipe 27.

[0038] Preferably, the mechanical pressure stabilizing safety valve includes a hollow baffle 25, which is disposed on the output pipe 27. The hollow baffle 25 passes longitudinally through the output pipe 27 and is connected to the output pipe 27. A valve plate 24 is slidably disposed inside the hollow baffle 25, and an irregularly shaped through groove 26 is provided on the valve plate 24.

[0039] Preferably, a threaded rod 23 is fixedly provided on the upper end of the valve plate 24, and a stepped threaded cap 21 is threadedly connected to the threaded rod 23.

[0040] The working principle and beneficial effects of the above technical solution are as follows: By rotating the stepped threaded cap 21, the height of the threaded rod 23 can be changed, thereby changing the position of the valve plate 24 on the hollow baffle 25, that is, changing the position of the irregular through groove 26, thereby achieving the purpose of adjusting the through cross section, thus forming an on / off or partially open state for the output pipe 27. The structure is simple and easy to use. When the intelligent solenoid valve 6 malfunctions, the output pipe 27 can be closed by rotating the stepped threaded cap 21 or by directly pressing down the threaded rod 23, thereby improving the safety effect.

[0041] Example 4

[0042] Based on the above embodiment 3, such as Figures 3-4 As shown, a voltage regulator tube 15 is also connected through the output tube 27. A movable plate 17 is slidably arranged inside the voltage regulator tube 15. A connecting rod 16 is fixedly arranged on the movable plate 17. The upper end of the connecting rod 16 extends out of the voltage regulator tube 15. The upper end of the connecting rod 16 is fixedly connected to the movable block 19.

[0043] Preferably, a spring 18 is fixedly installed at the lower end of the movable block 19, the spring 18 is sleeved on the connecting rod 16, and the other end of the spring 18 is fixedly connected to the upper end of the voltage regulator tube 15.

[0044] Preferably, a synchronizing rod 20 is fixedly installed on the moving block 19, and the other end of the synchronizing rod 20 is fixedly connected to a moving ring 22. The moving ring 22 is sleeved on the threaded rod 23, and the upper end of the moving ring 22 is rotatably connected to the stepped threaded cap 21.

[0045] The working principle and beneficial effects of the above technical solution are as follows: When fluid flows through the output pipe 27, it pushes the moving plate 17 to rise. The moving plate 17 drives the connecting rod 16 to rise, the connecting rod 16 drives the moving block 19 to rise, and the moving block 19 drives the synchronous rod 20, the moving ring 22, the stepped threaded cap 21, and the threaded rod 23 to rise synchronously, thereby changing the opening and closing size of the valve. When the speed and pressure of the fluid flow are greater, the valve plate 24 rises higher. By pre-setting the position of the stepped threaded cap 21 on the threaded rod 23, it is possible to select whether the valve opening and closing is larger or smaller (generally larger) when the speed and pressure of the fluid flow are greater, thus neutralizing the pressure. With the mechanical pressure stabilizing safety valve, it can be used for a short period of time when the intelligent solenoid valve 6 fails, and it can also regulate the flow and neutralize the pressure.

[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. An intestinal obstruction catheter with real-time pressure regulation, characterized in that, The device includes a handheld device (1), on which a conduit body (8) is connected. One end of the conduit body (8) is connected to a suction pump. The conduit body (8) is provided with a guide wire channel (12), a pressure regulating channel (14), and an air inlet channel (13). A connecting pipe (7) is installed on the conduit body (8). The connecting pipe (7) is connected to the pressure regulating channel (14). The pressure regulating channel (14) is provided with several pressure regulating holes (10). The other end of the connecting pipe (7) is provided with an intelligent solenoid valve (6). The pressure regulating channel (14) is provided with a flow sensor and a pressure sensor. The handheld device (1) is also provided with a PCB control component. The intelligent solenoid valve (6), the suction pump, the flow sensor, the pressure sensor, and the PCB control component are electrically connected.

2. The intestinal obstruction catheter with real-time pressure regulation according to claim 1, characterized in that, The handheld device (1) is also connected to an inlet pipe (2) and a water inlet pipe (3), both of which are connected to the guide wire channel (12). A guide wire (11) is provided in the guide wire channel (12), and a display screen is also provided on the handheld device (1). The display screen is electrically connected to the PCB control component.

3. The intestinal obstruction catheter with real-time pressure regulation according to claim 1, characterized in that, There are two intake channels (13). Two intake pipes (5) are connected through the duct body (8). An intake valve (4) is fixedly installed at the end of the intake pipe (5) away from the duct body (8). The intake pipe (5) is connected through the intake channel (13).

4. The intestinal obstruction catheter with real-time pressure regulation according to claim 3, characterized in that, Two air intake channels (13) are connected to airbags (9), one air intake pipe (5) is connected to one airbag (9), and the other air intake pipe (5) is connected to the other airbag (9).

5. The intestinal obstruction catheter with real-time pressure regulation according to claim 1, characterized in that, The other end of the intelligent solenoid valve (6) is connected to the output pipe (27), and a mechanical pressure stabilizing safety valve is installed on the output pipe (27).

6. The intestinal obstruction catheter with real-time pressure regulation according to claim 5, characterized in that, The mechanical pressure regulating safety valve includes a hollow baffle (25), which is disposed on the output pipe (27). The hollow baffle (25) passes through the output pipe (27) longitudinally and is connected to the output pipe (27). A valve plate (24) is slidably disposed inside the hollow baffle (25), and an irregularly shaped through groove (26) is provided on the valve plate (24).

7. The intestinal obstruction catheter with real-time pressure regulation according to claim 6, characterized in that, A threaded rod (23) is fixedly installed on the upper end of the valve plate (24), and a stepped threaded cap (21) is threadedly connected to the threaded rod (23).

8. The intestinal obstruction catheter with real-time pressure regulation according to claim 7, characterized in that, A voltage regulator tube (15) is also connected through the output tube (27). A movable plate (17) is slidably arranged inside the voltage regulator tube (15). A connecting rod (16) is fixedly arranged on the movable plate (17). The voltage regulator tube (15) extends slidably from the upper end of the connecting rod (16). A movable block (19) is fixedly connected to the upper end of the connecting rod (16).

9. The intestinal obstruction catheter with real-time pressure regulation according to claim 8, characterized in that, A spring (18) is fixedly installed at the lower end of the movable block (19). The spring (18) is sleeved on the connecting rod (16), and the other end of the spring (18) is fixedly connected to the upper end of the voltage regulator tube (15).

10. An intestinal obstruction catheter with real-time pressure regulation according to claim 8, characterized in that, A synchronizing rod (20) is fixedly installed on the moving block (19). The other end of the synchronizing rod (20) is fixedly connected to a moving ring (22). The moving ring (22) is sleeved on the threaded rod (23), and the upper end of the moving ring (22) is rotatably connected to the stepped threaded cap (21).

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