Negative pressure gastric lavage appliance

Abstract

The invention relates to a negative-pressure gastric lavage appliance, which effectively solves the problems that the existing gastric lavage operation is complicated and low in efficiency, and the gastric lavage operation is inconvenient when people go out. Comprising a main body, a swing plate hinged to the right end of the main body through a hinge, a U-shaped pressing plate hinged to the front end of the swing plate, a transmission box fixed to the front side of the upper end of the main body, a backrest located behind the transmission box fixed to the upper end of the main body, and an inverted-L-shaped positioning block fixed to the upper end of the main body and located in front of the transmission box. An L-shaped positioning pillow located behind the positioning block is fixed to the upper end of the main body, a hip pad located between the transmission box and the backrest is fixed to the upper end of the main body, an up-down axial fixing ring is fixed to the interior of the main body, an annular notch with an inward opening is formed in the fixing ring, and a water purification pipe is fixed to the right end of the fixing ring; the free end of the water purification pipe passes through the left end of the main body after bypassing the fixing ring; the device is simple in structure, convenient to operate, novel in conception and high in usability.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, and in particular to a negative pressure gastric lavage device. Background Art

[0002] Gastric lavage refers to the process of pouring a certain amount of liquid into the stomach cavity, mixing it with the stomach contents, and then extracting it. This is repeated many times. The purpose is to remove unabsorbed poisons in the stomach or clean the stomach cavity. It is used clinically for gastric surgery and preparation before examination. Choosing a suitable gastric lavage position is the key to ensuring the effect of gastric lavage and preventing and reducing complications. Generally, the head is low and the hips are high (the hips are raised by 30°~40°). The left side lying position is convenient for the flushing and suction of gastric lavage, which significantly shortens the time required for the entire gastric lavage process and ensures the effect of gastric lavage. At the same time, because the oral cavity is lower than the larynx, the gastric lavage fluid can be prevented from entering the trachea, reducing the chance of suffocation and aspiration pneumonia. This position will reduce the chance of gastric lavage fluid entering the intestinal cavity due to the influence of gravity, and reduce the chance of poisons entering the intestinal cavity and being absorbed and causing secondary poisoning.

[0003] In principle, the amount of perfusion each time should not exceed the stomach capacity. The amount of gastric lavage solution has a direct impact on the effect of gastric lavage. Too little liquid will not achieve the purpose of comprehensive gastric lavage; too much liquid will easily cause acute gastric dilatation and promote the entry of poisons into the intestine through the pylorus, increasing absorption. Generally, children under 5 years old should use 1000 ml~2000 ml, and children aged 5 to 10 years should use 2000 ml~3000 ml. ml is appropriate. When performing gastric lavage treatment on child patients, due to their young age, they are afraid of gastric tube intubation and hospital environment, and they cry and feel restless. In this case, first of all, let their favorite relatives accompany them to eliminate their restlessness and help them quickly establish a sense of security in the surrounding environment. Nursing intervention is performed on gastric lavage patients before gastric lavage. For example, nursing staff can manually suppress the patient's limbs to prevent the child from moving during the gastric lavage process, thereby reducing the occurrence of gastric lavage complications and allowing the gastric lavage to proceed smoothly. However, the existing syringe gastric lavage method requires medical staff to manually push the syringe to push the liquid, and the negative pressure gastric lavage method requires medical staff to frequently control the liquid push and suction during operation. Since the body position and other operations are required, the workload in the preparation stage is large and the operation process is cumbersome, resulting in low efficiency of gastric lavage for patients. In particular, for some outdoor emergency treatments, the gastric lavage machine is large in size and inconvenient to move, and it is not conducive to supporting and fixing the patient's body position outside, which is not conducive to emergency treatment of patients. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a negative pressure gastric lavage device, which effectively solves the problems of cumbersome and low efficiency of the existing gastric lavage operation and inconvenience of outdoor gastric lavage operation.

[0005] The technical solution is as follows: the present invention comprises a main body, the right end of the main body is hingedly connected with a swing plate via a hinge, the front end of the swing plate is hingedly connected with a U-shaped pressure plate, a transmission box is fixed to the front side of the upper end of the main body, a backrest located behind the transmission box is fixed to the upper end of the main body, the swing plate can swing to between the transmission box and the backrest, an inverted L-shaped positioning block is fixed to the upper end of the main body, the positioning block is located in front of the transmission box, an airbag cushion is on the right side of the positioning block, a positioning pillow located behind the positioning block and in an L-shaped row is fixed to the upper end of the main body, a hip pad located between the transmission box and the backrest is fixed to the upper end of the main body, and an upper and lower axial A fixing ring is provided on the fixing ring, an annular notch opening inward is provided, a clean water pipe is fixed to the right end of the fixing ring, the free end of the clean water pipe passes through the left end of the main body before bypassing the rear of the fixing ring, a liquid inlet pipe is fixed to the lower end of the fixing ring, a liquid outlet pipe is fixed to the left end of the fixing ring, the liquid inlet pipe and the liquid outlet pipe are connected to each other, a connecting pipe is fixed at the connection between the liquid inlet pipe and the liquid outlet pipe, the left end of the connecting pipe passes through the main body, a sewage pipe is fixed to the upper end of the fixing ring, the free end of the sewage pipe is in an inverted L shape and passes through the left end of the main body, and the connections between the clean water pipe, the liquid inlet pipe, the liquid outlet pipe, the sewage pipe and the fixing ring are all connected to the notches on their corresponding sides.

[0006] The fixing ring is coaxially provided with a swivel ring, and the upper end of the swivel ring is coaxially fixed with a turntable connected to the main body for rotation. The upper end surface of the turntable contacts with the fixing ring, and the outer edge surface of the swivel contacts with the inner edge surface of the fixing ring. A negative pressure cylinder in the left and right directions is fixed on the right side of the swivel ring. A piston head is provided in the negative pressure cylinder at the right end, and the right end surface of the piston head is arc-shaped and fits with the inner edge surface of the recess. A slider is slidably connected to the upper end of the turntable, and a rotating column is rotatably connected to the right end of the slider. The right end of the rotating column is inserted into the negative pressure cylinder and is threadedly connected to a sliding rod. A push block is fixed to the right end of the sliding rod, and the piston head can slide left and right with the pushing block and is detachably connected to the pushing block. A positioning plate is detachably connected to the lower end of the main body, and the upper end of the positioning plate contacts with the lower end surfaces of the swivel ring and the fixing ring. A rhombus-shaped guide groove with an opening facing upward is provided on the positioning plate, and the corner of the guide groove is an arc surface, and the axis center of the arc surface is the same as the axis center of the swivel ring, and a guide column inserted into the guide groove is provided at the lower end of the slider.

[0007] The invention has an ingenious structure and is easy to use. By arranging a rotating ring, a fixing ring, a negative pressure cylinder, a rotating disk, a clean water pipe, a sewage pipe, a liquid inlet pipe, a liquid outlet pipe, a positioning disk, a guide groove, a guide column, a sliding block, a sliding rod, a piston head and a pushing block, it is convenient for medical personnel to perform gastric lavage on patients. There is no need to frequently control the injection and suction of liquid, and the gastric lavage liquid can be automatically sucked and injected. At the same time, the gastric lavage liquid in the patient's stomach can be sucked out and discharged to the outside of the body, thereby reducing the workload and labor intensity of nurses, improving the speed and cleanliness of gastric lavage for children, reducing the absorption time of poisons, and improving the success rate of rescue. At the same time, the amount of gastric lavage liquid used in each gastric lavage can be regulated as needed, and the gastric lavage intensity can be adjusted according to the age and physical condition of the patient to prevent complications caused by inappropriate amount of gastric lavage liquid in the patient, which is beneficial to the nursing treatment of the patient by medical personnel. In addition, by arranging a pull ring, a universal wheel swing plate, a transmission box, a backrest and a pressure plate, the portability of the device is improved, which is beneficial for medical personnel to perform treatment operations when going out for emergency treatment, and the patient's body position for gastric lavage can be supported and positioned when going out for emergency treatment. It better optimizes the standardization of outdoor first aid and improves the efficiency of outdoor treatment. It has simple structure, convenient operation, novel conception and strong usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is an axonometric view of the present invention.

[0009] Figure 2 It is a partially cutaway top view of the present invention.

[0010] Figure 3 It is a partially cutaway main axonometric view of the present invention.

[0011] Figure 4 It is a partially cut-away left axonometric view of the present invention.

[0012] Figure 5 It is an axonometric view of the present invention without the main body and the swing plate.

[0013] Figure 6 It is a parts diagram of a fixing ring of the present invention.

[0014] Figure 7 It is an exploded view of some parts of the present invention.

[0015] Figure 8 It is an axonometric view of the present invention in a folded state.

[0016] Fig. 9 It is a cutaway left view of the present invention in a folded state.

[0017] Fig.10 The present invention Figure 2 A is an enlarged view of the middle image.

[0018] Fig.11 The present invention Figure 3 Enlarged view of B.

[0019] Fig.12 The present invention Fig. 9 Enlarged view of C in the middle. DETAILED DESCRIPTION

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0021] Depend on Figures 1 to 12 The invention discloses a main body 1, wherein the right end of the main body 1 is connected to a swing plate 2 by a hinge, a U-shaped pressing plate 3 is hinged to the front end of the swing plate 2, a transmission box 4 is fixed to the front side of the upper end of the main body 1, a backrest 5 located behind the transmission box 4 is fixed to the upper end of the main body 1, the swing plate 2 can swing between the transmission box 4 and the backrest 5, an inverted L-shaped positioning block 6 is fixed to the upper end of the main body 1, the positioning block 6 is located in front of the transmission box 4, an airbag cushion 7 is on the right side of the positioning block 6, a positioning pillow 8 located behind the positioning block 6 and in an L-shaped row is fixed to the upper end of the main body 1, a hip pad 9 located between the transmission box 4 and the backrest 5 is fixed to the upper end of the main body 1, and a fixing ring 10 with an upper and lower axial direction is fixed in the main body 1, and an opening is provided on the fixing ring 10 facing the upper end of the main body 1. A clean water pipe 12 is fixed to the right end of the fixing ring 10, and the free end of the clean water pipe 12 passes through the left end of the main body 1 before bypassing the rear of the fixing ring 10. A liquid inlet pipe 13 is fixed to the lower end of the fixing ring 10, and a liquid outlet pipe 14 is fixed to the left end of the fixing ring 10. The liquid inlet pipe 13 and the liquid outlet pipe 14 are connected to each other. A connecting pipe 15 is fixed at the connection between the liquid inlet pipe 13 and the liquid outlet pipe 14, and the left end of the connecting pipe 15 passes through the main body 1. A sewage pipe 16 is fixed to the upper end of the fixing ring 10, and the free end of the sewage pipe 16 is in an inverted L shape and passes through the left end of the main body 1. The connection between the clean water pipe 12, the liquid inlet pipe 13, the liquid outlet pipe 14, and the sewage pipe 16 and the fixing ring 10 are all connected to the recess 11 on their corresponding sides.

[0022] The inner side of the fixed ring 10 is coaxially provided with a rotating ring 17, and a rotating disk 18 rotatably connected to the main body 1 is coaxially fixed on the upper end of the rotating ring 17. The upper end surface of the rotating disk 18 contacts the fixed ring 10, and the outer edge surface of the rotating ring 17 contacts the inner edge surface of the fixed ring 10. A negative pressure cylinder 19 in the left and right directions is fixed on the right side of the rotating ring 17. A piston head 20 is provided at the right end of the negative pressure cylinder 19. The right end surface of the piston head 20 is arc-shaped and fits with the inner edge surface of the recess 11. A slider 21 is slidably connected to the upper end of the rotating disk 18, and a rotating column 22 is rotatably connected to the right end of the slider 21. The right end of the rotating column 22 A slide rod 23 is inserted into the negative pressure cylinder 19 and threadedly connected. A push block 24 is fixed to the right end of the slide rod 23. The piston head 20 can slide left and right with the push block 24 and is detachably connected to the push block 24. A positioning plate 25 is detachably connected to the lower end of the main body 1. The upper end of the positioning plate 25 contacts the lower end surfaces of the swivel 17 and the fixed ring 10. A diamond-shaped guide groove 26 with an opening facing upward is provided on the positioning plate 25. The corners of the guide groove 26 are arc-shaped surfaces and the axis of the arc-shaped surface is the same as the axis of the swivel 17. A guide column 27 inserted into the guide groove 26 is provided at the lower end of the slider 21.

[0023] In order to facilitate the positioning of the patient's lower limbs by the pressing plate 3, a pressure pad 28 is fixed to the recessed part of the pressing plate 3, the rear side of the swing plate 2 is slidably connected to an inverted L-shaped limiting rod 29, and the front end of the pressing plate 3 is provided with a first limiting groove 30 with an opening facing upward and inverted L-shaped, and the limiting rod 29 can be inserted into the first limiting groove 30.

[0024] In order to facilitate the sliding of the limit rod 29 and to facilitate limiting the position of the swing plate 2 after swinging, an inverted L-shaped groove 31 is provided at the rear end of the swing plate 2. The groove 31 opens upward and the rear end is connected to the outside. The limit rod 29 is located in the groove 31 and the upper end extends out of the groove 31. A pressing block 32 is fixed to the lower end of the limit rod 29. The pressing block 32 is located in the groove 31 and the rear end extends out of the groove 31. The front end of the limit rod 29 is connected to the side wall of the groove 31 through a V-shaped elastic sheet. A second limit groove 33 is provided on the main body 1 and is located on the left side of the backrest 5. The second limit groove 33 is inverted L-shaped and opens upward. The limit rod 29 can be inserted into the second limit groove 33.

[0025] In order to prevent liquid from leaking out of the recess 11, a ring-shaped main sealing gasket 34 is coaxially fixed to the outside of the rotating ring 17. The main sealing gasket 34 fits tightly with the recess 11. The negative pressure cylinder 19 passes through the left and right sides and a secondary sealing gasket 35 is fixed on its right end around its side wall.

[0026] In order to facilitate the rotation of the turntable 18, a transmission groove 36 is opened in the transmission box 4, a main bevel gear 37 is coaxially fixed to the upper end of the turntable 18, and the main bevel gear 37 is inserted into the transmission groove 36. A motor 38 is fixed in the transmission box 4, and a secondary bevel gear 39 is coaxially fixed to the output end of the motor 38, and the secondary bevel gear 39 can mesh with the main bevel gear 37.

[0027] In order to facilitate the sliding of the slider 21 and the rotation of the rotating column 22, a guide rail 40 is fixed to the lower end of the turntable 18, the slider 21 is slidably connected to the guide rail 40, and a handle 41 is fixed to the outside of the rotating column 22. The handle 41 is polygonal and can be moved to the inside of the guide rail 40.

[0028] In order to facilitate the connection between the piston head 20 and the push block 24, an inverted L-shaped shift rod 42 is fixed on the front and rear sides of the left end of the piston head 20. The two shift rods 42 are symmetrical front and back and a swing groove 43 is opened in the middle. The push block 24 can contact the step surface of the shift rod 42. The projection of the push block 24 from top to bottom is T-shaped. An insertion rod 45 is hingedly connected to the swing groove 43 on the shift rod 42 through a pin 44. The insertion rod 45 is inverted L-shaped and its step surface can contact the step surface of the push block 24.

[0029] In order to facilitate the control of the swing of the insertion rod 45, top blocks 46 are respectively fixed on the front and rear side walls inside the negative pressure cylinder 19, and arc-shaped protrusions 47 are respectively fixed on the left ends of the two insertion rods 45 on the opposite sides. The protrusions 47 can contact the top blocks 46 on their corresponding sides, and a torsion spring 48 is mounted on the pin shaft 44.

[0030] In order to facilitate the disassembly and connection of the positioning plate 25, a disassembly groove 49 with an opening facing downward is opened at the lower end of the main body 1, and a positioning rod 50 is slidably connected to the main body 1. The right end of the positioning rod 50 passes through the main body 1 and is threadedly connected to the main body 1 via a bolt 51. The positioning rod 50 is in contact with the positioning plate 25.

[0031] In order to facilitate the control of the water flow of the liquid outlet pipe 14 and the liquid inlet pipe 13 to be similar, and to facilitate the use of the present device, the length between the liquid outlet pipe 14 and the connecting pipe 15 is smaller than the length between the liquid inlet pipe 13 and the connecting pipe 15, the free ends of the connecting pipe 15, the clean water pipe 12, and the sewage pipe 16 are rotatably connected with a threaded pipe joint 52, the negative pressure cylinder 19 is made of transparent material and has a scale value on the upper end, an arc-shaped give way groove is opened on the left side of the swing plate 2, a U-shaped pull ring 53 is fixed to the front end of the main body 1, and universal wheels 54 are respectively provided on the left and right sides of the rear end of the main body 1.

[0032] When the present invention is in use, if the medical staff only needs to use the left side of the gastric lavage tank, they only need to insert the water pipe 12 connecting pipe 15 into the gastric lavage solution, and then connect another pipe to the sewage pipe 16 to collect the waste liquid, and at the same time, the patient is intubated with a gastric tube. After the gastric tube is intubated, the gastric tube is connected to the connecting pipe 15. The above-mentioned threaded pipe joint 52 is an existing common pipeline connection component and is not described in detail. Then, the motor 38 is started, and the motor 38 drives the main bevel gear 37 to rotate through the secondary bevel gear 39. The main bevel gear 37 drives the turntable 18 to rotate clockwise, and the turntable 18 drives the swivel 17 to rotate clockwise. The swivel 17 drives the negative pressure cylinder 19 to rotate clockwise. At the same time, the turntable 18 and the swivel 17 synchronously drive the guide rail 40, the slider 21, the rotating column 22, and the slide rod 23. The piston head 20 and the push block 24 rotate synchronously. During the rotation of the slider 21, the guide column 27 will be driven to rotate. Since the other end of the guide column 27 is inserted into the guide groove 26, the guide column 27 will move along the guide groove 26 during the rotation. At the same time, since the guide groove 26 is a diamond shape and the corner is an arc coaxial with the swivel 17, when the swivel 17 rotates clockwise, the guide column 27 slides along the guide groove 26 in the clockwise direction and does not slide at the corner. When the guide column 27 moves to the upper hypotenuse of the guide groove 26, the right end of the negative pressure cylinder 19 is connected to the clean water pipe 12. As the swivel 17 continues to rotate, the guide groove 26 will push the guide column 27 to slide in the direction away from the axial direction of the guide groove 26 during the rotation around the axis of the swivel 17.

[0033] During this process, the guide column 27 drives the slider 21 to slide along the guide rail 40, and drives the push block 24 to move synchronously through the rotating column 22. The push block 24 contacts the stepped surface of the gear rod 42, and drives the piston head 20 to slide through the gear rod 42. In the process of the push block 24 driving the gear rod 42 to move, the protrusion 47 at the left end of the swing rod on the gear rod 42 is separated from the top block 46. Under the action of the torsion spring 48, the two swing rods swing back to back. At the same time, the protrusion 47 contacts the side wall of the negative pressure cylinder 19, and the stepped surface on the right side of the swing rod contacts the stepped surface of the push block 24. The piston head 20 sucks the gastric lavage solution into the negative pressure cylinder 19 through the clean water pipe 12. As the negative pressure The cylinder 19 rotates. When the negative pressure cylinder 19 loses contact with the clean water pipe 12, the guide column 27 moves to the corner on the upper side of the guide groove 26. Since the corner is arc-shaped and is the same as the axis of the swivel 17, when the guide column 27 slides along the corner, the distance between the guide column 27 and the axis of the swivel 17 does not change, so that the slider 21 does not slide, and the piston head 20 maintains this position. Then, when the guide column 27 moves out from the corner of the guide groove 26 and contacts with the bevel on the other side, as the swivel 17 rotates, the guide column 27 slides in the direction close to the axis of the swivel 17, and at this time, the negative pressure cylinder 19 is connected to the liquid inlet pipe 13.

[0034] During the rotation of the above-mentioned swivel 17, the main sealing gasket 34 and the auxiliary sealing gasket 35 are always driven to rotate, so that only the pipeline connected to the negative pressure cylinder 19 can have liquid exchange, and the other pipeline connections remain in a closed state. Then, as the liquid inlet pipe 13 and the negative pressure cylinder 19 are connected, and the guide column 27 moves along the guide groove 26 toward the direction close to the swivel 17, the guide column 27 drives the slider 21, the rotating column 22 and the push block 24 to slide. At the same time, the step surface of the push block 24 drives the gear lever 42 and the piston head 20 through the swing rod to push the gastric lavage liquid in the negative pressure cylinder 19 out. When the gastric lavage liquid is completely pushed out, the guide column 27 moves to the right corner relative to the guide groove 26. At this time, the negative pressure cylinder 19 and the liquid inlet pipe 13 are not connected, the sealing gasket rotates to the liquid inlet pipe 13 to make it closed, and at the same time, the gear lever 42 drives the protrusion 47 on the swing lever to move to the top block 46, the swing lever swings again and disengages from the push block 24, and the torsion spring 48 is in a compressed state.

[0035] At this time, as the swivel 17 continues to rotate, the guide column 27 first moves along the right corner of the guide groove 26. When the guide column 27 moves to the hypotenuse of the guide groove 26, the right end of the negative pressure cylinder 19 is connected to the liquid outlet pipe 14. As the swivel 17 continues to rotate, the guide groove 26 will push the guide column 27 to slide in a direction away from the axial direction of the guide groove 26 during the process of rotating around the axis of the swivel 17.

[0036] During this process, the guide column 27 drives the slider 21 to slide along the guide rail 40, and drives the push block 24 to move synchronously through the rotating column 22. The push block 24 contacts the stepped surface of the gear rod 42, and drives the piston head 20 to slide through the gear rod 42. In the process of the push block 24 driving the gear rod 42 to move, the protrusion 47 at the left end of the swing rod on the gear rod 42 is separated from the top block 46. Under the action of the torsion spring 48, the two swing rods swing back to back. At the same time, the protrusion 47 contacts the side wall of the negative pressure cylinder 19, and the stepped surface on the right side of the swing rod contacts the stepped surface of the push block 24. The piston head 20 sucks the liquid in the patient's stomach into the negative pressure cylinder 19 through the liquid outlet tube 14. The negative pressure cylinder 19 rotates. When the negative pressure cylinder 19 loses contact with the liquid outlet pipe 14, the guide column 27 moves to the corner on the lower side of the guide groove 26. Since the corner is arc-shaped and is the same as the axis of the swivel 17, when the guide column 27 slides along the corner, the distance between the guide column 27 and the axis of the swivel 17 does not change, so that the slider 21 does not slide, and the piston head 20 maintains this position. Then, when the guide column 27 moves out from the corner of the guide groove 26 and contacts with the bevel on the other side, as the swivel 17 rotates, the guide column 27 slides in the direction close to the axis of the swivel 17, and at this time the negative pressure cylinder 19 is connected to the sewage pipe 16.

[0037] Then, as the sewage pipe 16 and the negative pressure cylinder 19 are connected, and the guide column 27 moves along the guide groove 26 toward the direction close to the swivel 17, the guide column 27 drives the slider 21, the swivel column 22 and the push block 24 to slide, and at the same time, the step surface of the push block 24 drives the gear lever 42 and the piston head 20 through the swing rod to push the sewage in the negative pressure cylinder 19 out. When the sewage is completely pushed out, the guide column 27 moves to the right corner relative to the guide groove 26. At this time, the negative pressure cylinder 19 and the liquid inlet pipe 13 are not connected, and the sealing gasket rotates to the liquid outlet pipe 14 to make it airtight. At the same time, the gear lever 42 drives the protrusion 47 on the swing lever to move to the top block 46, and the swing lever swings again and disengages from the push block 24, and the torsion spring 4 8 is in a compressed state, at which time a gastric lavage cycle is completed, and in the process of gastric lavage, since the inlet pipe 13 and the outlet pipe 14 are interconnected, the gastric lavage fluid between the two will interact, but it does not affect the patient's normal gastric lavage. This setting is to prevent the gastric lavage tube from being blocked, and the inlet and outlet of the same pipeline can play a role in pipeline flushing. When the connecting pipe 15 is set, the length between the outlet pipe 14 and the connecting pipe 15 is smaller than the length between the inlet pipe 13 and the connecting pipe 15, in order to reduce the error between the injected liquid and the sucked liquid, because when the liquid is injected into the patient's stomach, the same negative pressure stroke may be used when it is withdrawn, resulting in the amount of sucked out being less than the amount of injected.

[0038] As the conversion continues to rotate, through the above process, the clean water pipe 12 sucks the gastric lavage liquid into the negative pressure cylinder 19, and pushes the gastric lavage liquid into the patient's stomach through the liquid inlet pipe 13, and then extracts the gastric lavage liquid through the liquid outlet pipe 14, and finally discharges the gastric lavage liquid through the sewage pipe 16 to complete the patient's gastric lavage process. When in use, you can first disconnect the gastric tube, and then start the motor 38. When the gastric lavage liquid fills the clean water pipe 12, the liquid inlet pipe 13 and the liquid outlet pipe 14, connect the gastric tube to perform gastric lavage to prevent air from existing between the pipes when it is first used, resulting in errors in the amount of gastric lavage liquid. When the device is in a folded state, the pull ring 53 and the universal wheel can be used to move the device.

[0039] If it is necessary to adjust the amount of gastric lavage liquid pushed in, it is only necessary to rotate the bolt 51 to disengage the bolt 51 from the positioning rod 50, and then take out the positioning disk 25, and at this time, rotate the handle 41. Since the negative pressure cylinder 19 is made of transparent material and is provided with a scale, as the handle 41 rotates, the handle 41 drives the rotating column 22 to rotate, and at the same time, the slider 21 drives the push block 24 to slide to the right and, through the difference between the right end surface of the push block 24 and the scale, to calibrate the amount of liquid suction, because the push block 24 moves to the left and drives the gear rod 42 to move, so that the piston head 20 moves, at this time, the distance between the push block 24 and the gear rod 42 is increased, and the push block 24 needs to move a distance before it can contact the gear rod 42, but the distance that the push block 24 is driven by the slider 21 does not change, so the distance that the gear rod 42 drives the piston head 20 to move is reduced, so the amount of gastric lavage liquid injected into the patient is reduced, and when resetting, the swing rod will be separated from the push block 24, and will not prevent the push block 24 from resetting, and there is no interference between the two.

[0040] When the patient needs to fix his position, he can press the button block 32 to make the limit rod 29 squeeze the elastic sheet, and then remove the limit rod 29 from the second limit groove 33. At this time, the swing plate 21 is swung 180 degrees, and then the patient lies between the backrest 5 and the transmission box 4, with the buttocks located on the hip pad 9, the head located on the headrest, and the arms placed between the airbag cushion 7 and the transmission box 4. Then the pressure plate 3 is swung to make the limit rod 29 inserted into the first limit groove 30, and the pressure pad 28 on the pressure plate 3 is used to squeeze the patient's lower limbs to complete the positioning of the patient's lower limbs. At the same time, through the positioning of the backrest 5 and the transmission box 4, the patient is kept in a lateral position, and the arms are prevented from being in the airbag cushion 7. The elasticity of the airbag cushion 7 can stabilize the patient's upper limbs. At this time, a gastric tube is intubated through the above process, and a gastric lavage operation is performed on the patient.

[0041] The invention has an ingenious structure and is easy to use. By arranging a rotating ring, a fixing ring, a negative pressure cylinder, a rotating disk, a clean water pipe, a sewage pipe, a liquid inlet pipe, a liquid outlet pipe, a positioning disk, a guide groove, a guide column, a sliding block, a sliding rod, a piston head and a pushing block, it is convenient for medical personnel to perform gastric lavage on patients. There is no need to frequently control the injection and suction of liquid, and the gastric lavage liquid can be automatically sucked and injected. At the same time, the gastric lavage liquid in the patient's stomach can be sucked out and discharged to the outside of the body, thereby reducing the workload and labor intensity of nurses, improving the speed and cleanliness of gastric lavage for children, reducing the absorption time of poisons, and improving the success rate of rescue. At the same time, the amount of gastric lavage liquid used in each gastric lavage can be regulated as needed, and the gastric lavage intensity can be adjusted according to the age and physical condition of the patient to prevent complications caused by inappropriate amount of gastric lavage liquid in the patient, which is beneficial to the nursing treatment of the patient by medical personnel. In addition, by arranging a pull ring, a universal wheel swing plate, a transmission box, a backrest and a pressure plate, the portability of the device is improved, which is beneficial for medical personnel to perform treatment operations when going out for emergency treatment, and the patient's body position for gastric lavage can be supported and positioned when going out for emergency treatment. It better optimizes the standardization of outdoor first aid and improves the efficiency of outdoor treatment. It has simple structure, convenient operation, novel conception and strong usability.

Claims

1. A negative pressure gastric lavage device, comprising a main body (1), characterized in that: The right end of the main body (1) is hingedly connected to a swing plate (2), the front end of the swing plate (2) is hingedly connected to a U-shaped pressing plate (3), a transmission box (4) is fixed to the front side of the upper end of the main body (1), a backrest (5) located behind the transmission box (4) is fixed to the upper end of the main body (1), the swing plate (2) can swing between the transmission box (4) and the backrest (5), an inverted L-shaped positioning block (6) is fixed to the upper end of the main body (1), the positioning block (6) is located in front of the transmission box (4), the right side of the positioning block (6) is an airbag cushion (7), the upper end of the main body (1) is fixed to a positioning pillow (8) located behind the positioning block (6) and in an L-shaped row, the upper end of the main body (1) is fixed to a hip pad (9) located between the transmission box (4) and the backrest (5), and a fixing ring (10) is fixed in the main body (1) in an upper and lower axial direction, and the fixing ring (10) is provided with an opening facing inward and an annular ring A clean water pipe (12) is fixed to the right end of the fixing ring (10), the free end of the clean water pipe (12) bypasses the rear of the fixing ring (10) and passes through the left end of the main body (1); a liquid inlet pipe (13) is fixed to the lower end of the fixing ring (10), a liquid outlet pipe (14) is fixed to the left end of the fixing ring (10), the liquid inlet pipe (13) and the liquid outlet pipe (14) are connected to each other, a connecting pipe (15) is fixed at the connection between the liquid inlet pipe (13) and the liquid outlet pipe (14), the left end of the connecting pipe (15) passes through the main body (1); a sewage pipe (16) is fixed to the upper end of the fixing ring (10), the free end of the sewage pipe (16) is in an inverted L shape and passes through the left end of the main body (1); the connection between the clean water pipe (12), the liquid inlet pipe (13), the liquid outlet pipe (14), the sewage pipe (16) and the fixing ring (10) are all connected to the notches (11) on the corresponding sides thereof; A rotating ring (17) is coaxially arranged on the inner side of the fixed ring (10), and a rotating disk (18) rotatably connected to the main body (1) is coaxially fixed on the upper end of the rotating ring (17). The upper end surface of the rotating disk (18) contacts the fixed ring (10), and the outer edge surface of the rotating ring (17) contacts the inner edge surface of the fixed ring (10). A negative pressure cylinder (19) in the left and right directions is fixed on the right side of the rotating ring (17). A piston head (20) is arranged on the right end of the negative pressure cylinder (19). The right end surface of the piston head (20) is arc-shaped and fits the inner edge surface of the recess (11). A slider (21) is slidably connected to the upper end of the rotating disk (18), and a rotating column (22) is rotatably connected to the right end of the slider (21). The right end of the rotating column (22) The end is inserted into the negative pressure cylinder (19) and is threadedly connected with a slide rod (23), a push block (24) is fixed to the right end of the slide rod (23), the piston head (20) can slide left and right with the push block (24) and is detachably connected with the push block (24), the lower end of the main body (1) is detachably connected with a positioning plate (25), the upper end of the positioning plate (25) is in contact with the lower end surface of the rotating ring (17) and the fixed ring (10), the positioning plate (25) is provided with a rhombus-shaped guide groove (26) with an opening facing upward, the corner of the guide groove (26) is an arc surface and the axis of the arc surface is the same as the axis of the rotating ring (17), and the lower end of the slider (21) is provided with a guide column (27) inserted into the guide groove (26).

2. A negative pressure gastric lavage device according to claim 1, characterized in that: A pressure pad (28) is fixed at the recess of the pressure plate (3); the rear side of the swing plate (2) is slidably connected to an inverted L-shaped limiting rod (29); a first limiting groove (30) with an upward opening and inverted L-shape is formed at the front end of the pressure plate (3); the limiting rod (29) can be inserted into the first limiting groove (30).

3. A negative pressure gastric lavage device according to claim 1, characterized in that: The swing plate (2) is provided with an inverted L-shaped groove (31) at the rear end, the groove (31) is opened upward and the rear end is connected to the outside, the limiting rod (29) is located in the groove (31) and the upper end thereof protrudes out of the groove (31), a pressing block (32) is fixed to the lower end of the limiting rod (29), the pressing block (32) is located in the groove (31) and the rear end thereof protrudes out of the groove (31), the front end of the limiting rod (29) is connected to the side wall of the groove (31) via a V-shaped elastic sheet, and the main body (1) is provided with a second limiting groove (33) located on the left side of the backrest (5), the second limiting groove (33) is inverted L-shaped and the opening is upward, and the limiting rod (29) can be inserted into the second limiting groove (33).

4. A negative pressure gastric lavage device according to claim 1, characterized in that: An annular main sealing gasket (34) is coaxially fixed on the outer side of the rotating ring (17), and the main sealing gasket (34) is tightly fitted with the recess (11). The negative pressure cylinder (19) passes through the left and right sides, and a secondary sealing gasket (35) is fixed on its right end around its side wall.

5. The negative pressure gastric lavage device according to claim 1, characterized in that: The transmission box (4) is provided with a transmission groove (36), a main bevel gear (37) is coaxially fixed to the upper end of the rotating disk (18), the main bevel gear (37) is inserted into the transmission groove (36), a motor (38) is fixed in the transmission box (4), a secondary bevel gear (39) is coaxially fixed to the output end of the motor (38), and the secondary bevel gear (39) can mesh with the main bevel gear (37).

6. The negative pressure gastric lavage device according to claim 1, characterized in that: A guide rail (40) is fixed at the lower end of the turntable (18), the slider (21) is slidably connected to the guide rail (40), and a rotating handle (41) is fixed on the outside of the rotating column (22). The rotating handle (41) is polygonal and can be moved to the inside of the guide rail (40).

7. The negative pressure gastric lavage device according to claim 1, characterized in that: An inverted L-shaped shift rod (42) is fixed to the front and rear sides of the left end of the piston head (20), respectively. The two shift rods (42) are symmetrical in front and back and a swing groove (43) is opened in the middle of them. The push block (24) can contact the stepped surface of the shift rod (42). The projection of the push block (24) from top to bottom is T-shaped. An insertion rod (45) is hinged in the swing groove (43) on the shift rod (42) through the pin shaft (44). The insertion rod (45) is inverted L-shaped and its stepped surface can contact the stepped surface of the push block (24).

8. The negative pressure gastric lavage device according to claim 1, characterized in that: Top blocks (46) are fixed to the front and rear side walls of the negative pressure cylinder (19), arc-shaped protrusions (47) are fixed to the left ends of the two insertion rods (45) on the opposite sides, and the protrusions (47) can contact the top blocks (46) on the corresponding sides. A torsion spring (48) is sleeved on the pin shaft (44).

9. The negative pressure gastric lavage device according to claim 1, characterized in that: The lower end of the main body (1) is provided with a disassembly groove (49) with an opening facing downwards. A positioning rod (50) is slidably connected to the main body (1). The right end of the positioning rod (50) passes through the main body (1) and is threadedly connected to the main body (1) via a bolt (51). The positioning rod (50) contacts the positioning plate (25).

10. The negative pressure gastric lavage device according to claim 1, characterized in that: The length between the liquid outlet pipe (14) and the connecting pipe (15) is shorter than the length between the liquid inlet pipe (13) and the connecting pipe (15); the free ends of the connecting pipe (15), the clean water pipe (12), and the sewage pipe (16) are rotatably connected to threaded pipe joints (52); the negative pressure cylinder (19) is made of a transparent material and has a scale value at the upper end; an arc-shaped clearance groove is provided on the left side of the swing plate (2); a U-shaped pull ring (53) is fixed to the front end of the main body (1); and universal wheels (54) are respectively provided on the left and right sides of the rear end of the main body (1).

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