Drainage device for operating room nursing

Abstract

The invention relates to the technical field of medical care, in particular to a drainage device for operating room nursing, which comprises a water seal bottle, the top end of the water seal bottle is communicated with a drainage tube, the top end of the water seal bottle is provided with an air pump, and a negative pressure tube is communicated between the water seal bottle and the air pump. A ball valve is controlled to open and close a negative pressure pipe, so that the closing frequency of the negative pressure pipe is consistent with that of breathing of a patient, and expiration difficulty is relieved; suction force generated by blocking the negative pressure pipe through the ball valve is utilized to drive a magnetic block to drive a rotating shaft to rotate, so that a stirring piece rotates to break blood clots in hydrops; the magnetic block in an air suction cylinder sucks air when moving and compresses the air to an annular pipe to be sprayed out when resetting; bubble flow is matched with stirring blade vortex to decompose fibrous protein and smash blood clots, the floating plate ascends along with the liquid level to drive the circular ring and other components, the rubber clamping block tightly presses the drainage tube, the drainage speed is reduced, and risks caused by excessive hydrops are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care, and in particular to a drainage device for operating room care. Background Art

[0002] The nursing work of the respiratory department usually involves caring for patients with respiratory diseases such as pneumothorax. Patients with pneumothorax and other diseases need to undergo pleural effusion drainage. In a sterile environment, one end of the drainage tube is placed in the chest cavity, and the other end is connected to a fluid bottle that is lower than the height of the chest outlet to discharge gas or collect fluid in the chest cavity, so that the lung tissue can reopen and restore function.

[0003] However, existing drainage devices mainly rely on air pumps to continuously provide negative pressure, and use water seal bottles to negatively absorb the patient's pleural effusion. However, the continuous negative pressure acting on the patient's chest cavity will interfere with the normal respiratory physiological mechanism, causing the patient's exhalation process to be obstructed and causing difficulty in exhalation.

[0004] In view of this, the existing problems are studied and improved, and a drainage device for operating room nursing is provided, aiming to solve the problems and improve the practical value through this technology. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a drainage device for operating room nursing is proposed. The present invention drives the rack A to engage with the gear A through an electric push rod, controls the ball valve to open and close the negative pressure tube, makes the closing frequency of the negative pressure tube consistent with the patient's breathing, alleviates the difficulty of exhalation, uses the suction force generated by the ball valve to block the negative pressure tube, drives the magnetic block to drive the rotating shaft to rotate, and makes the stirring plate rotate to break the blood clots in the accumulated fluid. When the magnetic block in the suction cylinder moves, it inhales air, and when it is reset, the air is compressed into the annular tube and sprayed out. The bubble flow and the vortex of the stirring plate cooperate to decompose fibrin and break up the blood clots. The float plate drives the ring and other components as the liquid level rises, so that the rubber clamp presses the drainage tube, reduces the drainage speed, and avoids the risk caused by excessive fluid accumulation.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a drainage device for operating room nursing, comprising a water seal bottle, the top of the water seal bottle is connected to a drainage tube, the top of the water seal bottle is installed with an air pump, a negative pressure tube is connected between the water seal bottle and the air pump, an electric push rod is installed at the top of the water seal bottle, the outer wall of the negative pressure tube is provided with a shell, a ball valve is rotated inside the shell, the outer wall of the ball valve is provided with a valve stem, one end of the valve stem is installed with a gear A, and the output end of the electric push rod is installed with a rack A meshing with the gear A;

[0007] An air suction cylinder is installed below the water seal bottle, a connecting pipe is connected between the negative pressure pipe and the air suction cylinder, a magnetic block slides inside the air suction cylinder, a rotating shaft rotates inside the water seal bottle, an outer wall of the rotating shaft is provided with a stirring piece, and an outer wall of the air suction cylinder is provided with a driving component for driving the rotating shaft to rotate;

[0008] An annular tube is installed at the bottom end of the inner part of the water seal bottle, and multiple groups of nozzles are installed on the inner side of the annular tube. An air supply pipe A is connected between the annular tube and the air suction cylinder;

[0009] A floating plate slides on the outer wall of the rotating shaft, a mounting bracket is installed on the top of the water seal bottle, a sleeve is installed through the top of the mounting bracket, an extrusion rod slides inside the sleeve, an air cylinder is installed on the top of the water seal bottle, an air supply pipe B is connected between the sleeve and the air cylinder, and a pushing component for driving the extrusion rod is provided under the air cylinder.

[0010] Preferably: the driving assembly includes a magnetic ring sliding on the outer wall of the suction cylinder, the side wall of the magnetic ring is fixedly connected to a connecting rod, one end of the connecting rod is installed with a rack B, and the bottom end of the rotating shaft is sleeved with a gear B meshing with the rack B.

[0011] Preferably, a spring A is provided inside the air suction cylinder, one end of the spring A is fixedly connected to one side of the magnetic block, and the other end of the spring A is fixedly connected to the inner wall of the air suction cylinder.

[0012] Preferably, the plurality of groups of nozzles are distributed in a circular array along the axial direction of the annular tube, and the nozzles are arranged obliquely upward.

[0013] Preferably, the pushing assembly includes a circular ring provided on the outer side of the rotating shaft, the outer wall of the circular ring is fixedly connected to a push rod, one end of the push rod is fixedly connected to a piston, and the piston slides inside the air storage cylinder.

[0014] Preferably, the outer wall of the extrusion rod located inside the sleeve is sleeved with a spring B, and one end of the extrusion rod close to the outer wall of the drainage tube is provided with a rubber clamping block.

[0015] Preferably, a one-way air suction valve is installed at one end of the air suction cylinder, and a liquid discharge pipe is installed at the bottom end of the water seal bottle.

[0016] Preferably, the outer wall of one end of the drainage tube is provided with a conical cover, and the outer wall of the conical cover is provided with a latex patch.

[0017] Preferably, the inner wall of the suction cylinder is provided with a guide groove, and the outer wall of the magnetic block is provided with a guide block that slides in cooperation with the guide groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention starts the movement of rack A by an electric push rod, so that rack A drives gear A to rotate, and gear A synchronously drives the ball valve to rotate, so that the ball valve blocks the negative pressure tube, cuts off the negative pressure path between the water seal bottle and the air pump, and the drainage process stops. On the contrary, when the patient is in the inhalation stage, the electric push rod drives rack A to move in the opposite direction, and rack A again drives the valve stem to rotate in the opposite direction through the meshing action with gear A, and the valve stem then drives the ball valve to rotate in the opposite direction, so that the ball valve opens the connection of the negative pressure tube, and the air pump provides negative pressure to the water seal bottle through the negative pressure tube, so that the drainage process continues. By keeping the patient's breathing consistent with the closing frequency of the negative pressure tube, the problem of patient exhalation difficulty caused by continuous negative pressure is effectively alleviated, the patient's exhalation process is smoother, and the patient's comfort during treatment is improved.

[0020] 2. The present invention utilizes a ball valve to seal the negative pressure tube. The negative pressure in the connecting tube increases sharply due to the blocked passage, forming a stronger suction force. The suction force acts on the magnetic block inside the suction cylinder, overcoming the elastic force of spring A, and pushing the magnetic block to slide in the suction cylinder. The magnetic block drives the magnetic ring on the outer wall of the suction cylinder to move synchronously, and the connecting rod drives the rack B to translate. The movement of the rack B is converted into the rotation of the gear B, which drives the rotating shaft to rotate. When the rotating shaft rotates, the stirring piece mounted on its outer wall rotates accordingly. The stirring piece stirs the accumulated liquid inside the water seal bottle and breaks up the blood clots, solid secretions, etc., thereby reducing the risk of blood clots, tissue residues, etc. clogging the drainage pipe and ensuring the continuity and stability of the drainage process.

[0021] 3. The present invention works as follows: when the magnetic block in the suction cylinder moves under the action of negative pressure, the internal space of the suction cylinder increases, generating negative pressure, and the outside air flows into the suction cylinder through the one-way suction valve. When the patient inhales, the ball valve opens the negative pressure tube, and the negative pressure in the connecting tube returns to normal. The elastic force of spring A pushes the magnetic block to reset, compressing the air sucked into the suction cylinder and transporting it to the annular tube at the bottom of the water seal bottle through the air supply pipe A. The compressed gas enters the annular tube and is ejected through multiple groups of nozzles, forming a bubble flow in the effusion. When the stirring plate rotates, vortexes are generated, which break the bubbles into small bubbles and evenly distribute them in the effusion. The small bubbles can increase the contact area between the liquid and the air, assist in decomposing the fibrin in the effusion, and prevent blood clots from coagulating. At the same time, the buoyancy and disturbance generated during the rising process of the bubbles can enhance the convection movement of the liquid, and the micro-impact force generated when the bubbles burst can assist the stirring plate in breaking up larger blood clots, thereby reducing the workload of the stirring plate.

[0022] 4. In the present invention, the accumulated liquid in the water seal bottle is continuously increased, and the liquid level gradually rises. The float plate rises synchronously with the liquid level due to the buoyancy. When the float plate rises to a preset height, it drives the circular ring sleeved on the outside of the rotating shaft to move upward. The circular ring drives the push rod to push the piston in the air storage cylinder to move upward synchronously, compressing the gas in the air storage cylinder. The compressed gas is transported from the air storage cylinder to the inside of the sleeve through the air transmission pipe B. The extrusion rod in the sleeve slides downward under the action of air pressure, and the rubber clamping block near one end of the outer wall of the drainage tube gradually presses the drainage tube, thereby reducing the flow cross-sectional area of ​​the drainage tube and reducing the drainage speed, providing medical staff with sufficient time to deal with the problem, avoiding the risks of back suction and overflow caused by excessive fluid accumulation, and improving the safety and timeliness of nursing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the water seal bottle of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of part A;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the air suction cylinder of the present invention;

[0027] Figure 5 For the present invention Figure 4 The enlarged structural diagram of part B in the middle;

[0028] Figure 6 This is a schematic diagram of the internal structure of the water seal bottle of the present invention;

[0029] Figure 7 For the present invention Figure 6 The enlarged structural diagram of part C in the middle;

[0030] Figure 8 It is a schematic diagram of the overall structure of the conical cover of the present invention.

[0031] Legend:

[0032] 1. Water seal bottle; 2. Drainage tube; 3. Air pump; 4. Negative pressure tube; 5. Electric push rod; 6. Housing; 7. Ball valve; 8. Valve stem; 9. Gear A; 10. Rack A; 11. Suction cylinder; 12. Connecting pipe; 13. Magnetic block; 14. Magnetic ring; 15. Connecting rod; 16. Rack B; 17. Rotating shaft; 18. Gear B; 19. Stirring blade; 20. Spring A; 21. Annular tube; 22. Nozzle; 23. Air pipe A; 24. Floating plate; 25. Mounting bracket; 26. Sleeve; 27. Extrusion rod; 28. Air storage cylinder; 29. ​​Air pipe B; 30. Spring B; 31. Ring; 32. Piston; 33. Push rod; 34. Conical cover. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See Figures 1 to 8 As shown, the present invention provides a drainage device for operating room nursing, comprising a water seal bottle 1, the top of the water seal bottle 1 is connected to a drainage tube 2, the top of the water seal bottle 1 is installed with an air pump 3, a negative pressure tube 4 is connected between the water seal bottle 1 and the air pump 3, an electric push rod 5 is installed at the top of the water seal bottle 1, the outer wall of the negative pressure tube 4 is provided with a shell 6, a ball valve 7 is rotated inside the shell 6, the outer wall of the ball valve 7 is provided with a valve stem 8, one end of the valve stem 8 is installed with a gear A9, and the output end of the electric push rod 5 is installed with a rack A10 meshing with the gear A9;

[0035] It should be noted that when in use, the medical staff adjusts the working frequency of the electric push rod 5 according to the patient's actual respiratory frequency to make it consistent with the patient's respiratory frequency, and at the same time guides the patient to adjust his or her own exhalation and inhalation frequency to keep synchronization with the electric push rod 5. When the patient enters the exhalation stage, the electric push rod 5 starts to drive the rack A10 to move, so that the rack A10 drives the gear A9 to rotate, and the gear A9 synchronously drives the ball valve 7 to rotate, so that the ball valve 7 blocks the negative pressure tube 4, cuts off the negative pressure path between the water seal bottle 1 and the air pump 3, and stops the drainage process. Conversely, when the patient is in the inhalation stage, the electric push rod 5 drives the rack A10 in the opposite direction. Move, rack A10 again meshes with gear A9 to drive valve stem 8 to rotate in the opposite direction, and valve stem 8 further drives ball valve 7 to rotate in the opposite direction, so that ball valve 7 opens the connection of negative pressure tube 4, and air pump 3 provides negative pressure to water seal bottle 1 through negative pressure tube 4, so that the drainage process continues. By keeping the patient's breathing consistent with the closing frequency of negative pressure tube 4, the patient's chest cavity is prevented from being continuously sucked by the negative pressure of water seal bottle 1. When exhaling, the negative pressure path is cut off, and the patient does not need to fight against additional negative pressure resistance, which effectively solves the problem of difficulty in exhalation caused by continuous negative pressure, makes the patient's exhalation process smoother, and improves the patient's comfort during treatment;

[0036] In addition, there is a certain damping force between the valve stem 8 and the housing 6, which ensures that the ball valve 7 rotates smoothly during the patient's exhalation and inhalation phases, avoids pressure fluctuations caused by sudden opening and closing, and improves the patient's comfort and drainage effect.

[0037] An air suction cylinder 11 is installed below the water seal bottle 1, and a connecting pipe 12 is connected between the negative pressure pipe 4 and the air suction cylinder 11. A magnetic block 13 slides inside the air suction cylinder 11, and a rotating shaft 17 rotates inside the water seal bottle 1. The outer wall of the rotating shaft 17 is provided with a stirring piece 19, and the outer wall of the air suction cylinder 11 is provided with a driving component for driving the rotating shaft 17 to rotate;

[0038] It should be noted that when the patient exhales, the ball valve 7 blocks the negative pressure tube 4, and the negative pressure passage between the water seal bottle 1 and the air pump 3 is cut off. At this time, the negative pressure in the connecting tube 12 increases sharply due to the blocked passage, forming a stronger suction force. The suction force acts on the magnetic block 13 inside the suction cylinder 11, overcoming the elastic force of the spring A20, and pushing the magnetic block 13 to slide in the suction cylinder 11. When the magnetic block 13 slides, the magnetic ring 14 on the outer wall of the suction cylinder 11 moves synchronously through the magnetic force, and the connecting rod 15 connected to the magnetic ring 14 The rack B16 is driven to translate. Since the rack B16 is engaged with the gear B18 at the bottom end of the rotating shaft 17, the movement of the rack B16 is converted into the rotation of the gear B18, which in turn drives the rotating shaft 17 to rotate. When the rotating shaft 17 rotates, the stirring blade 19 mounted on its outer wall rotates accordingly. The stirring blade 19 stirs the accumulated fluid inside the water seal bottle 1 and breaks up the blood clots, solid secretions, etc., reducing the risk of blood clots, tissue residues, etc. clogging the drainage pipe, ensuring the continuity and stability of the drainage process.

[0039] An annular tube 21 is installed at the bottom end of the water seal bottle 1. Multiple groups of nozzles 22 are installed on the inner side of the annular tube 21. An air delivery pipe A23 is connected between the annular tube 21 and the air suction cylinder 11.

[0040] It should be noted that when the magnetic block 13 in the suction cylinder 11 moves under the action of negative pressure, the internal space of the suction cylinder 11 increases, generating negative pressure. Since a one-way suction valve is provided at one end of the suction cylinder 11, the outside air can only flow into the suction cylinder 11 in one direction. When the patient inhales, the ball valve 7 opens the negative pressure pipe 4, and the negative pressure in the connecting pipe 12 returns to normal. The elastic force of the spring A20 pushes the magnetic block 13 to reset, compressing the air inhaled in the suction cylinder 11 and delivering it to the annular pipe 21 at the bottom of the water seal bottle 1 through the air delivery pipe A23. The compressed gas enters the annular pipe 21 and passes through the multiple groups of nozzles evenly distributed on the inside. 22 is ejected out, forming a bubble flow in the effusion, and the vortex is generated when the stirring blade 19 rotates, breaking the bubbles into small bubbles and evenly distributing them in the effusion. The small bubbles can increase the contact area between the liquid and the air, assist in decomposing the fibrin in the effusion, and prevent blood clots from coagulating; at the same time, the vortex drives the bubbles to move upward, avoiding the bubbles from gathering at the bottom to form air resistance, and the buoyancy and disturbance generated during the rising process of the bubbles can enhance the convection movement of the liquid, and the micro-impact force generated when the bubbles burst can assist the stirring blade 19 to break up larger blood clots, thereby reducing the workload of the stirring blade 19.

[0041] A floating plate 24 slides on the outer wall of the rotating shaft 17, a mounting bracket 25 is installed on the top of the water seal bottle 1, a sleeve 26 is installed through the top of the mounting bracket 25, an extrusion rod 27 slides inside the sleeve 26, an air cylinder 28 is installed on the top of the water seal bottle 1, an air supply pipe B29 is connected between the sleeve 26 and the air cylinder 28, and a pushing component for driving the extrusion rod 27 is provided below the air cylinder 28.

[0042] It should be noted that as the drainage process continues, the accumulated liquid in the water seal bottle 1 continues to increase, and the liquid level gradually rises. The slidable float 24 sleeved on the outer wall of the rotating shaft 17 rises synchronously with the liquid level due to buoyancy, and its rising height is positively correlated with the amount of accumulated liquid. When the float 24 rises to a preset height, it drives the ring 31 sleeved on the outside of the rotating shaft 17 to move upward, and the ring 31 pushes the piston 32 in the gas cylinder 28 to move upward synchronously through the fixedly connected push rod 33. This process compresses the gas in the gas cylinder 28, and the compressed gas is transported from the gas cylinder 28 to the inside of the sleeve 26 through the gas pipe B29. The extrusion rod 27 in the sleeve 26 slides downward under the action of air pressure, and the rubber clamp block near one end of the outer wall of the drainage tube 2 gradually presses the drainage tube 2, reducing the flow cross-sectional area of ​​the drainage tube 2 and reducing the drainage speed, providing medical staff with sufficient time to deal with it, avoiding the risks of back suction and overflow caused by excessive fluid accumulation, and improving the safety and timeliness of nursing.

[0043] As described above, medical staff adjust the working frequency of the electric push rod 5 according to the patient's breathing frequency to synchronize it with the patient's breathing. When the patient exhales, the electric push rod 5 drives the rack A10 and the gear A9 to rotate, and the ball valve 7 blocks the negative pressure tube 4, cutting off the negative pressure path to avoid difficulty in exhalation caused by continuous negative pressure; at the same time, the negative pressure in the connecting tube 12 increases, pushing the magnetic block 13 in the suction cylinder 11 to slide, and the rotating shaft 17 is driven to rotate through the magnetic ring 14, the connecting rod 15 and the rack B16, and the stirring blade 19 breaks the blood clots and solid secretions in the water seal bottle 1; when the patient inhales, the ball valve 7 opens, the magnetic block 13 resets, and the compressed air is ejected through the nozzle 22 of the annular tube 21 to form a bubble flow, which cooperates with the vortex of the stirring blade 19 to decompose fibrin and prevent blood clots from clotting; as the effusion increases, the float 24 rises and drives the ring 31 and the top rod 33 to compress the gas in the air storage cylinder 28, so that the extrusion rod 27 presses the drainage tube 2 through the rubber clamp, reduces the drainage speed, and avoids backflow and overflow.

[0044] See Figure 4 As shown, the drive assembly includes a magnetic ring 14 sliding on the outer wall of the suction cylinder 11, and the side wall of the magnetic ring 14 is fixedly connected to a connecting rod 15. A rack B16 is installed at one end of the connecting rod 15, and the bottom end of the rotating shaft 17 is provided with a gear B18 meshing with the rack B16.

[0045] See Figure 4 As shown, a spring A20 is installed inside the suction cylinder 11. One end of the spring A20 is fixedly connected to one side of the magnet 13, and the other end of the spring A20 is fixedly connected to the inner wall of the suction cylinder 11. When the patient inhales, the ball valve 7 opens the negative pressure tube 4, and the negative pressure in the connecting tube 12 returns to normal. The elastic force of the spring A20 pushes the magnet 13 back to its original position, driving the magnetic ring 14 and the rack B16 back to their initial positions. The next time the patient exhales, the above process repeats, continuously achieving the effusion stirring function.

[0046] See Figures 4 and 5 As shown, multiple groups of nozzles 22 are distributed in a circular array along the axial direction of the annular tube 21, and the nozzles 22 are arranged to be inclined upward. The inclined angle of the nozzles 22 helps to guide the bubbles to spiral up along the inner wall of the water seal bottle 1, avoiding the bubbles from gathering at the bottom to form air resistance, and ensuring the smooth flow of the accumulated liquid. At the same time, the buoyancy and disturbance generated when the bubbles rise, combined with the thrust of the liquid flow ejected by the nozzles 22, can enhance the convection movement of the liquid and further improve the stirring efficiency.

[0047] See Figures 6 and 7 As shown, the pushing assembly includes a ring 31 provided on the outside of the rotating shaft 17 , the outer wall of the ring 31 is fixedly connected to a push rod 33 , one end of the push rod 33 is fixedly connected to a piston 32 , and the piston 32 slides inside the air storage cylinder 28 .

[0048] See Figure 7As shown, the outer wall of the extrusion rod 27 located inside the sleeve 26 is provided with a spring B30, and the end of the extrusion rod 27 close to the outer wall of the drainage tube 2 is provided with a rubber clamp. By utilizing the softness and elasticity of the rubber material, it fits tightly with the tube wall when the drainage tube 2 is compressed, disperses the pressure, and avoids the metal extrusion rod 27 directly contacting the drainage tube 2 to cause scratches, breakage and other physical damage.

[0049] See Figure 4 As shown, a one-way suction valve is installed at one end of the suction cylinder 11. The one-way suction valve only allows external air to flow into the interior of the suction cylinder 11 in one direction, preventing the gas from flowing out in the opposite direction. A drain pipe is installed at the bottom end of the water seal bottle 1. Medical staff can discharge the drainage fluid in the water seal bottle 1 in time through the drain pipe to avoid excessive accumulation of fluid affecting the normal operation of the device.

[0050] See Figure 8 As shown, a conical cover 34 is provided on the outer wall of one end of the drainage tube 2, and a latex patch is provided on the outer wall of the conical cover 34. The latex patch on the outer wall of the conical cover 34 has good flexibility and elasticity, and can tightly wrap the skin around the wound and effectively fix the conical cover 34. The conical cover 34 can effectively prevent external air, bacteria and other pollutants from entering the wound, while preventing drainage fluid from overflowing, reducing the risk of postoperative infection, maintaining a clean environment for the surgical wound, and promoting wound healing.

[0051] See Figure 4 As shown, the inner wall of the suction cylinder 11 is provided with a guide groove, and the outer wall of the magnetic block 13 is provided with a guide block that slides with the guide groove. The cooperation between the guide groove and the guide block prevents the magnetic block 13 from deflecting during movement.

[0052] Working principle: When in use, medical staff adjust the working frequency of the electric push rod 5 according to the patient's actual respiratory frequency to make it consistent with the patient's respiratory frequency, and at the same time guide the patient to adjust his or her own exhalation and inhalation frequency to keep synchronization with the electric push rod 5. When the patient enters the exhalation stage, the electric push rod 5 starts to drive the rack A10 to move, so that the rack A10 drives the gear A9 to rotate, and the gear A9 synchronously drives the ball valve 7 to rotate, so that the ball valve 7 blocks the negative pressure tube 4, cutting off the negative pressure path between the water seal bottle 1 and the air pump 3, so that the drainage process stops. On the contrary, when the patient is in the inhalation stage, the electric push rod 5 drives the rack A10 to move in the opposite direction. The rack A10 meshes with the gear A9 again, driving the valve stem 8 to rotate in the opposite direction, and the valve stem 8 further drives the ball valve 7 to rotate in the opposite direction, so that the ball valve 7 opens the connection with the negative pressure tube 4, and the air pump 3 provides negative pressure to the water seal bottle 1 through the negative pressure tube 4, so that the drainage process continues. By keeping the patient's breathing consistent with the closing frequency of the negative pressure tube 4, the patient's chest cavity is prevented from being continuously sucked by the negative pressure of the water seal bottle 1. When exhaling, the negative pressure path is cut off, and the patient does not need to fight against additional negative pressure resistance, which effectively solves the problem of difficulty in exhalation caused by continuous negative pressure, makes the patient's exhalation process smoother, and improves the patient's comfort during treatment;

[0053] When the patient exhales, the ball valve 7 blocks the negative pressure tube 4, and the negative pressure passage between the water seal bottle 1 and the air pump 3 is cut off. At this time, the negative pressure in the connecting tube 12 increases sharply due to the blocked passage, forming a stronger suction force. The suction force acts on the magnetic block 13 inside the suction cylinder 11, overcoming the elastic force of the spring A20, and pushing the magnetic block 13 to slide in the suction cylinder 11. When the magnetic block 13 slides, the magnetic ring 14 on the outer wall of the suction cylinder 11 moves synchronously through the magnetic force, and the connecting rod 15 connected to the magnetic ring 14 drives the rack B16 moves horizontally. Since the rack B16 meshes with the gear B18 at the bottom end of the rotating shaft 17, the movement of the rack B16 is converted into the rotation of the gear B18, which in turn drives the rotating shaft 17 to rotate. When the rotating shaft 17 rotates, the stirring blade 19 sleeved on its outer wall rotates accordingly. The stirring blade 19 stirs the accumulated liquid inside the water seal bottle 1, breaking up the blood clots, solid secretions, etc. therein, reducing the risk of blood clots, tissue residues, etc. clogging the drainage pipe, and ensuring the continuity and stability of the drainage process;

[0054] When the magnetic block 13 in the suction cylinder 11 moves under the action of negative pressure, the internal space of the suction cylinder 11 increases, generating negative pressure. Since a one-way suction valve is provided at one end of the suction cylinder 11, the outside air can only flow into the suction cylinder 11 in one direction. When the patient inhales, the ball valve 7 opens the negative pressure pipe 4, and the negative pressure in the connecting pipe 12 returns to normal. The elastic force of the spring A20 pushes the magnetic block 13 to reset, compressing the air inhaled in the suction cylinder 11 and delivering it to the annular tube 21 at the bottom of the water seal bottle 1 through the air delivery pipe A23. The compressed gas enters the annular tube 21 and is sprayed out through the multiple groups of nozzles 22 evenly distributed on the inside. The bubbles are ejected and form a bubble flow in the effusion, and the vortex is generated when the stirring blade 19 rotates, breaking the bubbles into small bubbles and evenly distributing them in the effusion. The small bubbles can increase the contact area between the liquid and the air, help decompose the fibrin in the effusion, and prevent blood clots from coagulating. At the same time, the vortex drives the bubbles to move upward, avoiding the bubbles from gathering at the bottom to form air resistance. At the same time, the buoyancy and disturbance generated during the rising process of the bubbles can enhance the convection movement of the liquid. The micro-impact force generated when the bubbles burst can help the stirring blade 19 break up larger blood clots, reducing the workload of the stirring blade 19.

[0055] As the drainage process continues, the accumulated liquid in the water seal bottle 1 continues to increase, and the liquid level gradually rises. The slidable float plate 24 sleeved on the outer wall of the rotating shaft 17 rises synchronously with the liquid level due to buoyancy, and its rising height is positively correlated with the amount of accumulated liquid. When the float plate 24 rises to a preset height, it drives the ring 31 sleeved on the outside of the rotating shaft 17 to move upward, and the ring 31 pushes the piston 32 in the gas cylinder 28 to move upward synchronously through the fixedly connected push rod 33. This process compresses the gas in the gas cylinder 28, and the compressed gas is transported from the gas cylinder 28 to the inside of the sleeve 26 through the gas supply pipe B29. The extrusion rod 27 in the sleeve 26 slides downward under the action of air pressure, and the rubber clamp block near one end of the outer wall of the drainage tube 2 gradually presses the drainage tube 2, reducing the flow cross-sectional area of ​​the drainage tube 2 and reducing the drainage speed, providing medical staff with sufficient time to deal with it, avoiding the risks of back suction and overflow caused by excessive fluid accumulation, and improving the safety and timeliness of nursing.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drainage device for operating room nursing, comprising a water seal bottle (1), characterized in that: The top of the water seal bottle (1) is connected to a drainage tube (2), an air pump (3) is installed on the top of the water seal bottle (1), a negative pressure tube (4) is connected between the water seal bottle (1) and the air pump (3), an electric push rod (5) is installed on the top of the water seal bottle (1), the outer wall of the negative pressure tube (4) is provided with a shell (6), a ball valve (7) is rotated inside the shell (6), a valve stem (8) is provided on the outer wall of the ball valve (7), a gear A (9) is installed on one end of the valve stem (8), and a rack A (10) meshing with the gear A (9) is installed on the output end of the electric push rod (5); An air suction cylinder (11) is installed below the water seal bottle (1), a connecting pipe (12) is connected between the negative pressure pipe (4) and the air suction cylinder (11), a magnetic block (13) is slidably provided inside the air suction cylinder (11), a rotating shaft (17) is rotated inside the water seal bottle (1), an outer wall of the rotating shaft (17) is sleeved with a stirring piece (19), and a driving component for driving the rotating shaft (17) to rotate is provided on the outer wall of the air suction cylinder (11); An annular tube (21) is installed at the bottom end of the inner portion of the water seal bottle (1), a plurality of nozzles (22) are installed on the inner side of the annular tube (21), and an air delivery pipe A (23) is connected between the annular tube (21) and the air suction cylinder (11); A floating plate (24) is slidably mounted on the outer wall of the rotating shaft (17); a mounting bracket (25) is mounted on the top of the water seal bottle (1); a sleeve (26) is passed through the top of the mounting bracket (25); an extrusion rod (27) is slidably mounted inside the sleeve (26); an air cylinder (28) is mounted on the top of the water seal bottle (1); an air delivery pipe B (29) is connected between the sleeve (26) and the air cylinder (28); and a pushing assembly for driving the extrusion rod (27) is provided below the air cylinder (28).

2. The drainage device for operating room nursing according to claim 1, characterized in that: The driving assembly comprises a magnetic ring (14) sliding on the outer wall of the suction cylinder (11); a connecting rod (15) is fixedly connected to the side wall of the magnetic ring (14); a rack B (16) is installed at one end of the connecting rod (15); and a gear B (18) meshing with the rack B (16) is sleeved on the bottom end of the rotating shaft (17).

3. The drainage device for operating room nursing according to claim 1, characterized in that: A spring A (20) is provided inside the air suction cylinder (11), one end of the spring A (20) is fixedly connected to one side of the magnetic block (13), and the other end of the spring A (20) is fixedly connected to the inner wall of the air suction cylinder (11).

4. The drainage device for operating room nursing according to claim 1, characterized in that: A plurality of groups of nozzles (22) are distributed in a circumferential array along the axial direction of the annular tube (21), and the nozzles (22) are arranged obliquely upward.

5. The drainage device for operating room nursing according to claim 1, characterized in that: The pushing assembly comprises a circular ring (31) provided on the outside of the rotating shaft (17), the outer wall of the circular ring (31) is fixedly connected to a push rod (33), one end of the push rod (33) is fixedly connected to a piston (32), and the piston (32) slides inside the air storage cylinder (28).

6. The drainage device for operating room nursing according to claim 1, characterized in that: The outer wall of the extrusion rod (27) located inside the sleeve (26) is sleeved with a spring B (30), and one end of the extrusion rod (27) close to the outer wall of the drainage tube (2) is provided with a rubber clamping block.

7. The drainage device for operating room nursing according to claim 1, characterized in that: A one-way air suction valve is installed at one end of the air suction cylinder (11), and a liquid discharge pipe is installed at the bottom end of the water seal bottle (1).

8. The drainage device for operating room nursing according to claim 1, characterized in that: The outer wall of one end of the drainage tube (2) is provided with a conical cover (34), and the outer wall of the conical cover (34) is provided with a latex patch.

9. The drainage device for operating room nursing according to claim 1, characterized in that: The inner wall of the air suction cylinder (11) is provided with a guide groove, and the outer wall of the magnetic block (13) is provided with a guide block that is slidably matched with the guide groove.

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