Negative pressure gastric lavage instrument

Abstract

The negative pressure gastric lavage instrument comprises a shell, the interior of the shell is divided into a mechanical cavity and a containing cavity which are arranged up and down, a liquid medicine barrel and a sewage barrel are arranged in the containing cavity, the top end of the liquid medicine barrel is designed to be sealed, and an opening is formed in the top wall of the liquid medicine barrel. According to the utility model, a shell is arranged, the interior of the shell is divided into a mechanical cavity and a placement cavity, a liquid medicine barrel and a sewage barrel are arranged in the placement cavity, two negative pressure suction structures and two driving structures are arranged in the mechanical cavity, and each negative pressure suction structure comprises a cylinder and a piston in the cylinder; the two driving structures mainly comprise a first servo motor, a second servo motor, two lead screws and two square pipes, the piston in the cylinder can be driven to move through rotation of the first servo motor and the second servo motor, the suction action is achieved, in the gastric lavage process, the rotating speed of the servo motors can be changed according to the bearing degree of a child, and the suction effect is achieved. Therefore, the suction intensity is adjusted, and stomach lavage discomfort of children is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a negative pressure gastric lavage instrument. Background Art

[0002] A gastric lavage instrument is a medical device suitable for use in various medical units, emergency centers, etc. to rescue patients with food poisoning, drug poisoning, and for gastric lavage before surgery. It usually consists of a main control module, a display module, a power supply module, and a positive and negative pressure pump. After connecting the pipeline, it is used for clinical gastric lavage.

[0003] However, the existing gastric lavage instruments are common for both children and adults, and the suction force of the positive and negative pressure pumps inside the gastric lavage instrument cannot be adjusted. For children, if the suction force is too large, it will cause discomfort in the child's stomach and lead to the child's unwillingness to cooperate. Therefore, the utility model proposes a negative pressure gastric lavage instrument. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a negative pressure gastric lavage instrument.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A negative pressure gastric lavage instrument, including a housing, the interior of the housing is divided into an upper and lower mechanical chamber and a placement chamber. The placement chamber is internally provided with a liquid medicine barrel and a sewage barrel. The top of the liquid medicine barrel is designed with a sealed mouth, and an opening is provided on the top wall of the liquid medicine barrel. An electric heating plate for heating the liquid medicine is provided on the inner bottom wall of the liquid medicine barrel. Two negative pressure suction structures are fixed inside the mechanical chamber, and both negative pressure suction structures include a cylinder. A piston is slidably connected inside the cylinder. On the other side of the mechanical chamber, there are two driving structures for driving the piston to move, and both driving structures include a first servo motor and a second servo motor. A U-shaped tube is commonly connected to the side of the two cylinders away from the driving structures, and a connector is connected to the middle of the U-shaped tube. The two ends of the cylinders close to the U-shaped tube are respectively connected with a liquid inlet pipe and a liquid discharge pipe. The connector, the liquid inlet pipe, and the liquid discharge pipe all pass through the side wall of the housing and extend outside the housing and are respectively connected with a gastric tube, a liquid medicine tube, and a sewage discharge pipe. A control panel is fixed on the upper surface of the housing. An L-shaped support plate for mounting a mobile phone is fixed on the top end of the outer side wall of the housing.

[0006] Furthermore, the driving ends of the first servo motor and the second servo motor are both fixed with lead screws, and an internally threaded square tube is sleeved on the surface of the lead screws. The internally threaded square tube passes through the side wall of the corresponding cylinder and is fixed to the piston, and the internally threaded square tube is slidably connected to the side wall of the cylinder. By rotating the first servo motor and the second servo motor, the internally threaded square tube can be driven by the lead screw to drive the piston to move inside the cylinder, realizing negative pressure suction and liquid discharge inside the cylinder.

[0007] Further, one end of the liquid medicine tube away from the liquid inlet tube passes through the opening and extends into the liquid medicine barrel, and one end of the sewage pipe away from the liquid discharge pipe extends into the sewage barrel. The liquid medicine in the liquid medicine barrel can be pumped into the cylinder by the liquid medicine tube, and the gastric juice collected in another cylinder can be discharged into the sewage barrel by the sewage pipe.

[0008] Further, a first electromagnetic valve and a fourth electromagnetic valve are respectively connected to the middle parts of the liquid inlet tube and the liquid discharge tube, and a second electromagnetic valve and a third electromagnetic valve are respectively connected to the middle parts of both ends of the U-shaped tube. Through the coordinated opening and closing of the first electromagnetic valve, the fourth electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve, and then in cooperation with the driving structure, the suction and discharge cycle of the liquid medicine and the gastric juice can be realized.

[0009] Further, one side of the placement cavity is rotatably connected to a side door through a hinge, and the side of the side door away from the rotation is fixedly attracted to the side wall of the placement cavity through a magnet. The side door can be closed to protect the liquid medicine barrel and the sewage barrel.

[0010] Further, a temperature sensor is provided at the inner bottom end of the liquid medicine barrel, and a bottom tube is connected to the bottom side wall of the liquid medicine barrel. The temperature sensor is connected to the control panel, and can real-time monitor the temperature of the liquid medicine, so as to feedback to the control panel, so as to facilitate the artificial control of the temperature of the heated liquid medicine. The bottom tube can discharge the liquid medicine in the liquid medicine barrel.

[0011] Further, universal wheels are fixedly connected to the four corners of the lower surface of the housing, which is convenient for moving the instrument through the universal wheels.

[0012] The beneficial effects of the present utility model:

[0013] 1. When the present utility model is in use, by setting the housing, the interior of the housing is divided into a mechanical cavity and a placement cavity. The placement cavity is internally provided with a liquid medicine barrel and a sewage barrel, and the mechanical cavity is internally provided with two negative pressure suction structures and two driving structures. Both negative pressure suction structures include a cylinder and a piston inside the cylinder. The two driving structures mainly include a first servo motor, a second servo motor, two lead screws and two square tubes. By rotating the first servo motor and the second servo motor, the piston in the cylinder can be driven to move, so as to realize the suction action. During the gastric lavage process, according to the tolerance of children, the rotation speed of the servo motor can be changed, so as to adjust the suction intensity and avoid causing discomfort to children during gastric lavage.

[0014] 2. When the present utility model is in use, by arranging an electric heating plate and a temperature sensor on the inner bottom wall of the liquid medicine barrel, the liquid medicine in the liquid medicine barrel can be heated, so that after the liquid medicine enters the stomach of a child, it will not cause a stress reaction in the child due to the liquid medicine being too cold, making the gastric lavage smoother. Description of the drawings

[0015] Figure 1 is a perspective view of the present utility model;

[0016] Figure 2 is the top cross-sectional view of the present utility model;

[0017] Figure 3 is the cross-sectional view of the liquid medicine barrel of the present utility model.

[0018] Legend description:

[0019] 1. Housing; 2. Mechanical chamber; 3. Placement chamber; 4. Cylinder; 5. Piston; 6. First servo motor; 7. Second servo motor; 8. Lead screw; 9. Square pipe with internal thread; 10. U-shaped pipe; 11. Connector; 12. Stomach tube; 13. Liquid inlet pipe; 14. Drain pipe; 15. Liquid medicine pipe; 16. Sewage pipe; 17. First solenoid valve; 18. Second solenoid valve; 19. Third solenoid valve; 20. Fourth solenoid valve; 21. Liquid medicine barrel; 22. Sewage barrel; 23. Opening; 24. Electric heating plate; 25. Temperature sensor; 26. Bottom pipe; 27. Side door; 28. Control panel; 29. Universal wheel; 30. L-shaped support plate. Specific implementation manner

[0020] As Figure 1 - Figure 3 shown, it relates to a negative pressure gastric lavage instrument, including a housing 1. The interior of the housing 1 is divided into an upper and lower mechanical chamber 2 and a placement chamber 3. Inside the placement chamber 3, a liquid medicine barrel 21 and a sewage barrel 22 are arranged. The top of the liquid medicine barrel 21 is designed to be sealed, and an opening 23 is provided on the top wall of the liquid medicine barrel 21. An electric heating plate 24 for heating the liquid medicine is provided on the inner bottom wall of the liquid medicine barrel 21. Two negative pressure suction structures are fixed inside the mechanical chamber 2, and both negative pressure suction structures include a cylinder 4. A piston 5 is slidably connected inside the cylinder 4. On the other side of the mechanical chamber 2, two driving structures for driving the piston 5 to move are provided, and both driving structures include a first servo motor 6 and a second servo motor 7. A U-shaped pipe 10 is commonly connected to the sides of the two cylinders 4 away from the driving structures, and a connector 11 is connected to the middle of the U-shaped pipe 10. A liquid inlet pipe 13 and a drain pipe 14 are respectively connected to the ends of the two cylinders 4 close to the U-shaped pipe 10. The connector 11, the liquid inlet pipe 13, and the drain pipe 14 all pass through the side wall of the housing 1 and extend outside the housing 1 and are respectively connected to a stomach tube 12, a liquid medicine pipe 15, and a sewage pipe 16. A control panel 28 is fixed on the upper surface of the housing 1. An L-shaped support plate 30 for mounting a mobile phone is fixed on the top end of the outer side wall of the housing 1. During the gastric lavage process, a mobile phone and a tablet computer can be placed on the L-shaped support plate 30 to play animations to attract the attention of children, so that children can cooperate with the gastric lavage operation more easily.

[0021] As Figure 2As shown, on the driving ends of the first servo motor 6 and the second servo motor 7, a lead screw 8 is fixed. A square pipe with internal threads 9 is sleeved on the surface of the lead screw 8. The square pipe with internal threads 9 passes through the side wall of the corresponding cylinder 4 and is fixedly connected to the piston 5. The square pipe with internal threads 9 is slidably connected to the side wall of the cylinder 4. By rotating the first servo motor 6 and the second servo motor 7, the lead screw 8 can drive the square pipe with internal threads 9 to drive the piston 5 to move in the cylinder 4, realizing negative pressure suction and liquid discharge in the cylinder 4.

[0022] As Figure 1 and Figure 2 shown, one end of the liquid medicine pipe 15 far away from the liquid inlet pipe 13 passes through the opening 23 and extends into the liquid medicine barrel 21, and one end of the sewage discharge pipe 16 far away from the liquid discharge pipe 14 extends into the sewage barrel 22. First electromagnetic valves 17 and fourth electromagnetic valves 20 are respectively connected to the middle parts of the liquid inlet pipe 13 and the liquid discharge pipe 14. Second electromagnetic valves 18 and third electromagnetic valves 19 are respectively connected to the middle parts of the two ends of the U-shaped pipe 10. Through the coordinated opening and closing of the first electromagnetic valve 17, the fourth electromagnetic valve 20, the second electromagnetic valve 18 and the third electromagnetic valve 19, and cooperating with the driving structure, the suction and discharge cycle of the liquid medicine and gastric juice can be realized.

[0023] As Figure 1 shown, one side of the placement cavity 3 is rotatably connected to a side door 27 through a hinge, and the side of the side door 27 far away from the rotation is fixedly attracted to the side wall of the placement cavity 3 through a magnet. Universal wheels 29 are fixedly connected to the four corners of the lower surface of the housing 1. By providing the universal wheels 29, it is convenient to move the instrument.

[0024] As Figure 1 and Figure 3 shown, a temperature sensor 25 is provided at the inner bottom end of the liquid medicine barrel 21, and a bottom pipe 26 is connected to the bottom side wall of the liquid medicine barrel 21. The temperature sensor 25 is connected to the control panel 28. The temperature sensor 25 can monitor the temperature of the liquid medicine inside the liquid medicine barrel 21 in real time and feedback it to the control panel 28, so as to facilitate manual control of the temperature of the heated liquid medicine. The bottom pipe 26 can discharge the liquid medicine in the liquid medicine barrel 21.

[0025] During use: Add the liquid medicine for gastric lavage into the liquid medicine bucket 21, then connect one end of the gastric tube 12 to the connector 11, and insert the other end of the gastric tube 12 into the stomach of the child. Start the gastric lavage instrument through the control panel 28. First, open the first electromagnetic valve 17. Then, control the first servo motor 6 to drive the corresponding lead screw 8 to rotate through the control panel 28. The lead screw 8 will drive the square tube with internal threads on its surface to move, thereby driving the piston 5 in the corresponding cylinder 4 to move. Use the liquid inlet pipe 13 and the liquid medicine pipe 15 to pump the liquid medicine in the liquid medicine bucket 21 into the cylinder 4. Subsequently, close the first electromagnetic valve 17, open the second electromagnetic valve 18, and reverse the first servo motor 6, so that the piston 5 injects the liquid medicine into the stomach of the child through the U-shaped pipe 10, the connector 11 and the gastric tube 12. Then, close the second electromagnetic valve 18, open the third electromagnetic valve 19, and start the second servo motor 7 to drive the corresponding lead screw 8 to rotate, so that a negative pressure is formed in the other cylinder 4, thereby pumping the gastric juice and the cleaned liquid medicine in the child's stomach into the cylinder 4. After pumping, close the third electromagnetic valve 19, open the fourth electromagnetic valve 20, and reverse the second servo motor 7, so that the piston 5 in the cylinder 4 discharges the gastric juice and the cleaned liquid medicine into the sewage bucket 22 through the sewage discharge pipe 16. This process is one gastric lavage action. Next, repeat the above actions for cyclic gastric lavage until the water discharged from the sewage discharge pipe 16 is clear. During the gastric lavage process, the gastric lavage instrument can adjust the rotation speeds of the first servo motor 6 and the second servo motor 7 through the control panel 28 by observing whether the child is comfortable, so as to change the intensity of negative pressure suction to achieve the most comfortable level for the child.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A negative pressure gastric lavage instrument, comprising a housing (1), characterized in that: The interior of the housing (1) is divided into an upper and a lower mechanical chamber (2) and a placement chamber (3). Inside the placement chamber (3), there are a liquid medicine barrel (21) and a sewage barrel (22). The top of the liquid medicine barrel (21) is designed with a sealed end, and an opening (23) is provided on the top wall of the liquid medicine barrel (21). An electric heating plate (24) for heating the liquid medicine is provided on the inner bottom wall of the liquid medicine barrel (21). Two negative pressure suction structures are fixed inside the mechanical chamber (2), and both negative pressure suction structures include a cylinder (4). A piston (5) is slidably connected inside the cylinder (4). On the other side of the mechanical chamber (2), there are two driving structures for driving the piston (5) to move, and the two driving structures include a first servo motor (6) and a second servo motor (7). The two cylinders (4) are commonly connected to a U-shaped tube (10) on the side away from the driving structure, and a connector (11) is connected to the middle of the U-shaped tube (10). A liquid inlet pipe (13) and a liquid discharge pipe (14) are respectively connected to one end of the two cylinders (4) close to the U-shaped tube (10). The connector (11), the liquid inlet pipe (13), and the liquid discharge pipe (14) all pass through the side wall of the housing (1) and extend outside the housing (1) and are respectively connected to a gastric tube (12), a liquid medicine pipe (15), and a sewage discharge pipe (16). A control panel (28) is fixed on the upper surface of the housing (1). An L-shaped support plate (30) for mounting a mobile phone is fixed at the top of the outer side wall of the housing (1).

2. The negative pressure gastric lavage apparatus according to claim 1, wherein: The driving ends of the first servo motor (6) and the second servo motor (7) are both fixed with a lead screw (8), and an internally threaded square tube (9) is sleeved on the surface of the lead screw (8). The internally threaded square tube (9) passes through the side wall of the corresponding cylinder (4) and is fixed to the piston (5), and the internally threaded square tube (9) is slidably connected to the side wall of the cylinder (4).

3. The negative pressure gastric lavage instrument according to claim 1, wherein: One end of the liquid medicine pipe (15) away from the liquid inlet pipe (13) extends into the liquid medicine barrel (21) through the opening (23). One end of the sewage discharge pipe (16) away from the liquid discharge pipe (14) extends into the sewage barrel (22).

4. A negative pressure gastric lavage instrument according to claim 1, characterized in that: A first solenoid valve (17) and a fourth solenoid valve (20) are respectively connected to the middle parts of the liquid inlet pipe (13) and the liquid discharge pipe (14). A second solenoid valve (18) and a third solenoid valve (19) are respectively connected to the middle parts of the two ends of the U-shaped tube (10).

5. The negative pressure gastric lavage apparatus according to claim 1, characterized in that: One side of the placement chamber (3) is rotatably connected to a side door (27) through a hinge, and the side away from the rotation of the side door (27) is fixedly attracted to the side wall of the placement chamber (3) by a magnet.

6. The negative pressure gastric lavage instrument according to claim 1, characterized in that: A temperature sensor (25) is provided at the bottom end inside the liquid medicine barrel (21), and a bottom pipe (26) is connected to the side wall at the bottom end of the liquid medicine barrel (21).

7. A negative pressure gastric lavage instrument according to claim 1, characterized in that: Universal wheels (29) are fixedly connected to the four corners of the lower surface of the housing (1).

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