Pediatric negative pressure gastric lavage device for pediatric nursing

Abstract

The invention relates to the technical field of medical instruments, in particular to a pediatric negative pressure gastric lavage device for pediatric nursing, which comprises a hollow box body with one open side, the side wall of the box body is fixedly connected with a motor through a bracket, and the inner bottom wall of the box body is slidably connected with a recovery box and a liquid box; a pumping mechanism is arranged in the box body, the pumping mechanism comprises a suction block with a concave section and a liquid pumping block, the suction block is fixedly connected with the top wall of the box body in a penetrating mode, the liquid pumping block is fixedly connected with the inner side wall of the box body through a support, and pistons are connected in the suction block and the liquid pumping block in a sealed and sliding mode; a driving mechanism is arranged in the box body, the driving mechanism comprises a mounting shaft, the mounting shaft is rotationally connected with the inner side wall of the box body through a bearing, and the mounting shaft is fixedly connected with a rotating cover. The device has the advantages that a non-direct-drive mode is adopted, a patient and the device are prevented from being damaged, and medical staff can be reminded in time when abnormal conditions occur.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a pediatric negative pressure gastric lavage device for pediatric nursing. Background Technology

[0002] A gastric lavage machine is a medical device that injects lavage fluid into the stomach mechanically or electrically and uses negative pressure to suction out the stomach contents. It is mainly used to remove toxins and food residue from the stomach or for preoperative gastric cleaning. Its core function is to replace traditional manual gastric lavage with automated operation, thereby improving rescue efficiency and reducing operational risks. Because children have poor cognitive abilities, they often accidentally ingest toxic substances. After accidental ingestion of toxic substances, gastric lavage needs to be performed in a timely manner to minimize the impact of the toxins. Therefore, gastric lavage machines are one of the more commonly used medical devices in pediatric treatment.

[0003] In existing technologies, gastric lavage devices are generally driven by a motor to pump the lavage fluid into the patient's stomach and then extract it, repeating the lavage operation multiple times. However, the direct drive method continues to drive even when the pressure in the patient's stomach is high or the tubing is blocked, which may cause harm to the patient or damage to the machine. Furthermore, during the lavage process, substances inside the lavage fluid may settle, affecting the effectiveness of the lavage. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and to propose a pediatric negative pressure gastric lavage device for pediatric care.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A pediatric negative pressure gastric lavage device for pediatric nursing includes a hollow box with one side open. A motor is fixedly connected to the side wall of the box via a bracket, and a recovery box and a liquid box are slidably connected to the bottom wall of the box. The box is equipped with a pump suction mechanism, which includes a suction block with a concave cross-section and a pumping block. The suction block is fixedly connected to the top wall of the box through a bracket, and the pumping block is fixedly connected to the inner side wall of the box through a bracket. Both the suction block and the pumping block are sealed and slidably connected with pistons. The housing is equipped with a drive mechanism, which includes a mounting shaft. The mounting shaft is rotatably connected to the inner side wall of the housing via a bearing, and a rotating cover is fixedly connected to the mounting shaft. The liquid tank is equipped with an agitation mechanism, which includes two vertical rods. The vertical rods are rotatably connected to the bottom wall of the liquid tank via bearings. Multiple agitator blades are fixedly connected to the side walls of the vertical rods, and one of the vertical rods is fixedly connected to a secondary friction disc.

[0006] Furthermore, the pump suction mechanism also includes two rotating shafts. One of the rotating shafts is rotatably connected to the inner side wall of the housing via a bearing, and the other rotating shaft extends into the rotating cover. A turntable is fixedly connected to the adjacent ends of the two rotating shafts. A middle rod is fixedly connected between the two turntables. Two fixing plates are fixedly connected to the side walls of the opposite sides of the two pistons. A fixing rod is fixedly connected between the two fixing plates. The fixing rod and the middle rod are rotatably connected through a drive block. Multiple conductive rods are fixedly connected to the side wall of the rotating shaft located inside the rotating cover via an insulating rod. A first pipe and a second pipe are fixedly connected through the suction block. The second pipe is fixedly connected through the housing and extends into it. A third pipe and a fourth pipe are fixedly connected through the pump liquid block. The third pipe is fixedly connected through the side wall of the housing and extends into it.

[0007] Furthermore, the drive mechanism also includes a motor shaft, which is rotatably connected to the side wall of the housing via a bearing. One end of the motor shaft extends through to the outside of the housing and is fixedly connected to the output shaft of the motor, while the other end extends through to the inside of the housing and is fixedly connected to a main friction disc. The mounting shaft and the motor shaft are both fixedly connected to a first pulley, and the two first pulleys are tensioned together by a first synchronous belt. Multiple magnetic tiles are fixedly connected to the inner side wall of the rotating cover.

[0008] Furthermore, the agitation mechanism also includes two second pulleys, which are respectively fixedly connected to the corresponding vertical rods, and the two second pulleys are tensioned together by a second synchronous belt.

[0009] Furthermore, a main conductive ring is fixedly connected to the inner side wall of the rotating cover, and a secondary conductive ring is fixedly connected to the top wall of the box via an insulating rod. The conductive rod is slidably connected to the main conductive ring and the secondary conductive ring. An alarm is fixedly connected to the upper surface of the box, and the main conductive ring, the secondary conductive ring, and the alarm are electrically connected via wires.

[0010] Furthermore, the fourth tube is fixedly connected to a fifth tube, which is made of EPDM rubber.

[0011] Furthermore, the suction block is made of transparent glass.

[0012] Furthermore, one-way valves are installed in the first, second, third, and fourth pipes.

[0013] Furthermore, both the main friction disk and the secondary friction disk are made of vulcanized rubber.

[0014] Furthermore, a sealing ring is fixedly connected to the side wall of the piston.

[0015] The present invention has the following advantages: 1. The piston is driven to reciprocate by magnetic force to complete the circulation of gastric lavage fluid for gastric lavage. When the patient's gastric pressure is too high or the tube is blocked, the rotating cover will rotate relative to the rotating shaft and will no longer directly drive the rotating shaft to rotate. This avoids the situation where the motor is still driven when the patient's gastric pressure is too high or the tube is blocked, thus protecting the patient and the motor. 2. When the patient's stomach pressure is too high or the tube is blocked, the rotating cover will rotate relative to the rotating shaft, which will also generate current on the conductive rod. The current is supplied to the alarm, which will trigger the alarm to alert medical staff, ensuring that medical staff can be informed and deal with the situation in a timely manner. 3. The transparent suction block allows medical staff to directly observe the state of the fluid being suctioned from the patient's stomach during gastric lavage, thus enabling them to better assess the lavage process and the patient's condition. 4. While the motor drives the gastric lavage fluid pump in, it also drives the vertical rod to rotate through the transmission between the main friction disc and the auxiliary friction disc. The vertical rod, in turn, drives the stirring blade to rotate through the second pulley and the second synchronous belt, continuously stirring the gastric lavage fluid in the liquid tank to prevent the contents from settling and thus ensure the effectiveness of the gastric lavage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a pediatric negative pressure gastric lavage device for pediatric nursing proposed in this invention; Figure 2 This is a schematic diagram of the internal structure of a pediatric negative pressure gastric lavage device for pediatric nursing proposed in this invention, taken from a longitudinal section. Figure 3 This is a schematic diagram of the internal structure of a pediatric negative pressure gastric lavage device for pediatric nursing proposed in this invention, taken from another longitudinal section. Figure 4 for Figure 3 Enlarged view of point A in the image; Figure 5 This is a schematic diagram of the stirring mechanism of a pediatric negative pressure gastric lavage device for pediatric nursing proposed in this invention; Figure 6 This is a cross-sectional schematic diagram of the internal structure of a pediatric negative pressure gastric lavage device for pediatric nursing proposed in this invention.

[0017] In the diagram: 1. Box body, 2. Suction block, 3. Pump block, 4. Piston, 5. Fixed rod, 6. Rotating shaft, 7. Turntable, 8. Intermediate rod, 9. Conductive rod, 10. Main conductive ring, 11. Secondary conductive ring, 12. Alarm, 13. Motor, 14. First pulley, 15. First synchronous belt, 16. Recovery box, 17. Liquid tank, 18. First pipe, 19. Second pipe, 20. Third pipe, 21. Fourth pipe, 22. Fifth pipe, 23. Main friction disc, 24. Vertical rod, 25. Secondary friction disc, 26. Second pulley, 27. Second synchronous belt, 28. Stirring blade, 29. Motor shaft, 30. Magnet, 31. Fixed plate, 32. Drive block, 33. Mounting shaft, 34. Rotating cover. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example Reference Figures 1 to 6 A pediatric negative pressure gastric lavage device for pediatric nursing includes a hollow box 1 with one side open. A motor 13 is fixedly connected to the side wall of the box 1 by a bracket. A recovery box 16 and a liquid box 17 are slidably connected to the bottom wall of the box 1. The housing 1 is equipped with a pump suction mechanism, which includes a suction block 2 with a concave cross section and a pumping block 3. The suction block 2 is fixedly connected to the top wall of the housing 1 through a through-hole, and the pumping block 3 is fixedly connected to the inner side wall of the housing 1 through a bracket. Both the suction block 2 and the pumping block 3 are sealed and slidably connected with pistons 4. A drive mechanism is provided inside the housing 1. The drive mechanism includes a mounting shaft 33. The mounting shaft 33 is rotatably connected to the inner side wall of the housing 1 via a bearing. A rotating cover 34 is fixedly connected to the mounting shaft 33. The liquid tank 17 is equipped with an agitation mechanism, which includes two vertical rods 24. The vertical rods 24 are rotatably connected to the bottom wall of the liquid tank 17 via bearings. Multiple agitator blades 28 are fixedly connected to the side wall of the vertical rods 24, and one of the vertical rods 24 is fixedly connected to a secondary friction disc 25.

[0020] The pump suction mechanism also includes two rotating shafts 6. One rotating shaft 6 is rotatably connected to the inner side wall of the housing 1 via a bearing, and the other rotating shaft 6 extends into the rotating cover 34. A turntable 7 is fixedly connected to the adjacent ends of the two rotating shafts 6. An intermediate rod 8 is fixedly connected between the two turntables 7. Two fixing plates 31 are fixedly connected to the side walls of the two pistons 4 on opposite sides. A fixing rod 5 is fixedly connected between the two fixing plates 31. The fixing rod 5 and the intermediate rod 8 are rotatably connected to a drive block 32. Multiple conductive rods 9 are fixedly connected to the side wall of the rotating shaft 6 located inside the rotating cover 34 via an insulating rod. A first pipe 18 and a second pipe 19 are fixedly connected through the suction block 2. The second pipe 19 is fixedly connected through the housing 1 and extends into its interior. A third pipe 20 and a fourth pipe 21 are fixedly connected through the pump liquid block 3. The third pipe 20 is fixedly connected through the side wall of the housing 1 and extends into its exterior.

[0021] The drive mechanism also includes a motor shaft 29, which is rotatably connected to the side wall of the housing 1 via a bearing. One end of the motor shaft 29 extends through to the outside of the housing 1 and is fixedly connected to the output shaft of the motor 13, while the other end extends through to the inside of the housing 1 and is fixedly connected to the main friction disc 23. The mounting shaft 33 and the motor shaft 29 are both fixedly connected to first pulleys 14. Two first pulleys 14 are tensioned together by a first synchronous belt 15. Multiple magnetic tiles 30 are fixedly connected to the inner side wall of the rotating cover 34, and the magnetic tiles 30 are distributed as follows... Figure 5 As shown, the magnetic field lines of the magnetic tile 30 all point to the axis of the rotating cover 34. During gastric lavage, if the patient's stomach pressure is too high or the tube is blocked, the pressure of the pumped liquid will increase accordingly, thereby increasing the rotational resistance of the rotating shaft 6. After the rotational resistance of the rotating shaft 6 increases, the rotating cover 34 will rotate relative to the rotating shaft 6 while maintaining a fixed torque, and will no longer directly drive its rotation, thus avoiding injury to the patient or damage to the motor 13 caused by continued driving.

[0022] The agitation mechanism also includes two second pulleys 26, which are fixedly connected to the corresponding vertical rods 24. The two second pulleys 26 are tensioned together by a second synchronous belt 27. During gastric lavage, the rotation of the motor shaft 29 will also drive the main friction disk 23 to rotate. At this time, the main friction disk 23 and the auxiliary friction disk 25 are in contact. The main friction disk 23 can drive the auxiliary friction disk 25 to rotate through friction, thereby causing one of the vertical rods 24 to rotate. This vertical rod 24 is then driven by the second pulleys 26 and the second synchronous belt 27 to make the other vertical rod 24 rotate synchronously. The two vertical rods 24 drive the agitator 28 to rotate, continuously agitating the gastric lavage fluid in the liquid tank 17 to prevent sedimentation and affect the gastric lavage effect.

[0023] A main conductive ring 10 is fixedly connected to the inner wall of the rotating cover 34, and a secondary conductive ring 11 is fixedly connected to the inner top wall of the housing 1 via an insulating rod. The conductive rod 9 is slidably connected to the main conductive ring 10 and the secondary conductive ring 11. An alarm 12 is fixedly connected to the upper surface of the housing 1. The main conductive ring 10, the secondary conductive ring 11, and the alarm 12 are electrically connected via wires. When the rotating cover 34 and the rotating shaft 6 rotate relative to each other, the conductive rod 9 will cut the magnetic field lines of the magnetic tile 30, thereby generating an induced current in the conductive rod 9. This induced current is supplied to the alarm 12, which will then be powered on and sound an alarm. When medical staff hear the alarm, they must immediately stop the machine and check the patient and the machine's pipelines to ensure timely treatment and avoid serious consequences.

[0024] The fourth tube 21 is fixedly connected to the fifth tube 22, which is made of EPDM rubber. The rubber material of the fifth tube 22 ensures that the gastric lavage fluid in the liquid tank 17 can be drawn out better, while not obstructing the pulling out and pushing in of the liquid tank 17.

[0025] The suction block 2 is made of transparent glass. The transparent glass material of the suction block 2 allows medical staff to observe the color and state of the fluid aspirated from the patient's stomach as it passes through the suction block 2, thereby making a better judgment on the gastric lavage and the patient's condition.

[0026] One-way valves are installed in the first pipe 18, the second pipe 19, the third pipe 20, and the fourth pipe 21. The one-way valve in the first pipe 18 only allows liquid to enter the suction block 2 from the first pipe 18. The one-way valve in the second pipe 19 only allows liquid to enter the second pipe 19 from the suction block 2. The one-way valve in the third pipe 20 only allows liquid to enter the third pipe 20 from the pump block 3. The one-way valve in the fourth pipe 21 only allows liquid to enter the pump block 3 from the fourth pipe 21.

[0027] Both the main friction disk 23 and the secondary friction disk 25 are made of vulcanized rubber. The rubber material of the main friction disk 23 and the secondary friction disk 25 can ensure a large friction force between them, so that the main friction disk 23 can drive the secondary friction disk 25 to rotate through the friction force.

[0028] A sealing ring is fixedly connected to the side wall of piston 4. The sealing ring ensures the seal when piston 4 slides, preventing leakage at the sliding point.

[0029] In this invention, sufficient gastric lavage fluid is added to the liquid tank 17, and then the gastric lavage tube is connected to the first tube 18 and the third tube 20. The gastric lavage tube is then inserted into the patient's stomach, and the motor 13 is turned on to begin gastric lavage.

[0030] During gastric lavage, motor 13 drives motor shaft 29 to rotate. Motor shaft 29, through the transmission of first pulley 14 and first synchronous belt 15, causes mounting shaft 33 to rotate. Mounting shaft 33 drives rotating cover 34 to rotate, which in turn drives magnetic tile 30 to rotate. Magnetic tile 30 drives conductive rod 9 to rotate through magnetic force. The rotation of conductive rod 9 drives rotating shaft 6 to rotate, which in turn drives rotating disk 7 to rotate. The rotation of rotating disk 7 drives piston 4 to move up and down through drive block 32. When piston 4 in suction block 2 moves up and down, it sucks out gastric fluid from the patient's stomach through first tube 18 and then pumps it into collection box 16 for storage through second tube 19. When piston 4 in pumping block 3 moves up and down, it sucks gastric lavage fluid into pumping block 3 through fourth tube 21 and fifth tube 22 and then pumps it into the patient's stomach through third tube 20. This cycle is repeated to perform gastric lavage on the patient.

[0031] During gastric lavage, if the patient's stomach pressure is too high or the tubing becomes blocked, the pressure of the pumped liquid will increase, which will increase the rotational resistance of the rotating shaft 6. After the rotational resistance of the rotating shaft 6 increases, the rotating cover 34 will rotate relative to the rotating shaft 6 while maintaining a fixed torque, and will no longer directly drive the rotating shaft 6 to avoid injury to the patient or damage to the motor 13 caused by continued driving.

[0032] When the rotating cover 34 and the rotating shaft 6 rotate relative to each other, the conductive rod 9 will cut the magnetic field lines of the magnetic tile 30, thereby generating an induced current in the conductive rod 9. This induced current is supplied to the alarm 12, which will then be powered on and sound an alarm. When medical staff hear the alarm, they must immediately stop the machine and check the patient and the machine's pipelines to ensure timely treatment and avoid serious consequences.

[0033] During gastric lavage, the rotation of the motor shaft 29 also drives the main friction disk 23 to rotate. At this time, the main friction disk 23 and the auxiliary friction disk 25 remain in contact. The main friction disk 23 can drive the auxiliary friction disk 25 to rotate through friction, thereby causing one of the vertical rods 24 to rotate. This vertical rod 24 is then driven by the second pulley 26 and the second synchronous belt 27 to make the other vertical rod 24 rotate synchronously. The two vertical rods 24 drive the stirring blade 28 to rotate, continuously stirring the gastric lavage fluid in the liquid tank 17 to prevent it from settling.

[0034] After gastric lavage is completed, stop the machine, remove the recovery tank 16, clean out the internal liquid, and rinse the recovery tank 16.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pediatric negative pressure gastric lavage device for pediatric nursing, comprising a hollow box (1) open on one side, characterized in that, The side wall of the box (1) is fixedly connected to a motor (13) by a bracket, and the bottom wall of the box (1) is slidably connected to a recycling box (16) and a liquid box (17). The box (1) is equipped with a pump suction mechanism, which includes a suction block (2) with a concave cross section and a pump liquid block (3). The suction block (2) is fixedly connected to the top wall of the box (1) through a bracket. The pump liquid block (3) is fixedly connected to the inner side wall of the box (1) through a bracket. Both the suction block (2) and the pump liquid block (3) are sealed and slidably connected with pistons (4). The housing (1) is provided with a drive mechanism, which includes a mounting shaft (33). The mounting shaft (33) is rotatably connected to the inner side wall of the housing (1) through a bearing. The mounting shaft (33) is fixedly connected to a rotating cover (34). The liquid tank (17) is equipped with an agitation mechanism, which includes two vertical rods (24). The vertical rods (24) are rotatably connected to the bottom wall of the liquid tank (17) through bearings. Multiple agitator blades (28) are fixedly connected to the side wall of the vertical rods (24), and one of the vertical rods (24) is fixedly connected to a secondary friction disc (25).

2. The pediatric negative pressure gastric lavage device for pediatric nursing according to claim 1, characterized in that, The pump suction mechanism also includes two rotating shafts (6), one of which is rotatably connected to the inner wall of the housing (1) via a bearing, and the other rotating shaft (6) extends into the rotating cover (34). A turntable (7) is fixedly connected to the adjacent ends of both rotating shafts (6), and a middle rod (8) is fixedly connected between the two turntables (7). Two fixing plates (31) are fixedly connected to the opposite side walls of the two pistons (4), and a fixing rod (5) is fixedly connected between the two fixing plates (31). The fixing rod (5) and the middle rod... (8) A drive block (32) is connected to the rotating shaft (6) through a rotating cover (34). Multiple conductive rods (9) are fixedly connected to the side wall of one end of the rotating shaft (6) through an insulating rod. The suction block (2) is fixedly connected to the first tube (18) and the second tube (19). The second tube (19) is fixedly connected to the box body (1) through a through and extends into its interior. The pump block (3) is fixedly connected to the third tube (20) and the fourth tube (21). The third tube (20) is fixedly connected to the side wall of the box body (1) through a through and extends into its exterior.

3. A pediatric negative pressure gastric lavage device for pediatric nursing according to claim 1, characterized in that, The drive mechanism also includes a motor shaft (29), which is rotatably connected to the side wall of the housing (1) through a bearing. One end of the motor shaft (29) extends through to the outside of the housing (1) and is fixedly connected to the output shaft of the motor (13). The other end extends through to the inside of the housing (1) and is fixedly connected to the main friction disc (23). The mounting shaft (33) and the motor shaft (29) are both fixedly connected to a first pulley (14). The two first pulleys (14) are tensioned together by a first synchronous belt (15). Multiple magnetic tiles (30) are fixedly connected to the inner side wall of the rotating cover (34).

4. A pediatric negative pressure gastric lavage device for pediatric nursing according to claim 1, characterized in that, The agitation mechanism also includes two second pulleys (26), which are fixedly connected to the corresponding vertical rods (24) respectively, and the two second pulleys (26) are tensioned together by a second synchronous belt (27).

5. A pediatric negative pressure gastric lavage device for pediatric nursing according to claim 2, characterized in that, The inner wall of the rotating cover (34) is fixedly connected to a main conductive ring (10), and the inner top wall of the box (1) is fixedly connected to a secondary conductive ring (11) by an insulating rod. The conductive rod (9) is slidably connected to the main conductive ring (10) and the secondary conductive ring (11). An alarm (12) is fixedly connected to the upper surface of the box (1). The main conductive ring (10), the secondary conductive ring (11), and the alarm (12) are electrically connected by wires.

6. A pediatric negative pressure gastric lavage device for pediatric nursing according to claim 2, characterized in that, The fourth tube (21) is fixedly connected to the fifth tube (22), which is made of EPDM rubber.

7. A pediatric negative pressure gastric lavage device for pediatric nursing according to claim 1, characterized in that, The suction block (2) is made of transparent glass.

8. A pediatric negative pressure gastric lavage device for pediatric nursing according to claim 2, characterized in that, One-way valves are installed in the first pipe (18), the second pipe (19), the third pipe (20), and the fourth pipe (21).

9. A pediatric negative pressure gastric lavage device for pediatric nursing according to claim 3, characterized in that, Both the main friction disc (23) and the secondary friction disc (25) are made of vulcanized rubber.

10. A pediatric negative pressure gastric lavage device for pediatric nursing according to claim 1, characterized in that, A sealing ring is fixedly connected to the side wall of the piston (4).

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