Flusher for surgical nursing

Abstract

The invention discloses a flusher for surgical nursing and belongs to the technical field of medical auxiliary instruments.The flusher comprises a flushing fluid cylinder used for containing flushing fluid, the top of the flushing fluid cylinder is in threaded connection with a sealing cover, a push rod is slidably arranged at the lower end of the flushing fluid cylinder in a penetrating mode, and the top of the push rod is fixedly connected with a piston block; meanwhile, the upper end of the sealing cover body is fixedly connected with a flushing pipe; the lower end of the push rod is fixedly connected with an outer frame, the lower end of the sealing cover body is rotationally connected with a rotating seat, the lower end of the sealing cover body is further fixedly connected with a fixing ring, the rotating seat is driven to rotate through a transmission assembly in the lifting process of the outer frame, and meanwhile a limiting assembly is arranged between the rotating seat and the fixing ring. The flusher for surgical nursing can automatically block the nasal cavity on the side to be flushed during use, flushing fluid is prevented from flowing back, the flushing pressure can be adaptively adjusted in the flushing process, and the situation that the nasal cavity is damaged due to high impact force generated by fluid pushing is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary instruments, and particularly to an irrigator for surgical nursing. Background Art

[0002] Nasal cavity irrigation is a common surgical nursing operation. By using an irrigator to inject physiological saline or other medicaments into the nasal cavity, the inner side of the nasal cavity can be cleaned and medicated, thereby effectively treating nasal cavity and sinus diseases.

[0003] The prior art (Chinese patent with application number: 202221167078.9, application date: May 16, 2022) discloses a nasal cavity irrigation syringe, which includes an inner cylinder. An outer cylinder is sleeved outside the inner cylinder, and a waste liquid collection cavity is formed between the inner cylinder and the outer cylinder. A piston connected with a push rod is arranged inside the inner cylinder. One end of the inner cylinder is communicated with a flushing tube head. A sealing part is fixedly connected to the outside of the flushing tube head. A collection tube communicating with the waste liquid collection cavity is arranged on the sealing part. An annular part is slidably connected to the waste liquid collection cavity. An operation handle extends outward from the outer side wall of the outer cylinder near the outer end of the push rod. An air hole communicating with the waste liquid collection cavity is arranged on the outer side of the end of the inner cylinder far from the flushing tube head. The utility model flushes the nasal cavity through the flushing tube head connected to the inner cylinder, blocks the nasal cavity by using the sealing part, and leads the waste liquid into the waste liquid collection cavity by using the collection tube, avoiding leakage and pollution, being convenient to use, being able to quickly complete the flushing operation of the nasal cavity, improving the comfort of patients, and improving the work efficiency of medical staff; The prior art (Chinese patent with application number: 202020995508.0, application date: June 3, 2020) discloses a deep nasal cavity irrigator, which includes a warm water storage part and a warm water delivery part. The warm water delivery part is detachably installed on the top of the warm water storage part. The top of the warm water delivery part has a plurality of through holes, and the included angle between the through holes and the horizontal line is between 30 and 50 degrees; by designing this application, the hose penetrates deep into the nasal cavity and is flushed with pressure, and the pressure can be adjusted according to the pressing force. The cleaning effect is significantly better than that of the current nasal cavity irrigator. The deep nasal cavity irrigator is used in combination with warm water at about 40 degrees, and no substances such as salt stains will be left. Moreover, the angle of the through holes is biased downward, which can prevent choking the nose; Although the irrigator in the prior art can achieve pressure adjustment during use, its adjustment method is only adjusted by the pressing force of the hand, so that the pressure control accuracy is limited, resulting in further damage to the inner side of the nasal cavity due to excessive flushing pressure, and there are certain defects in use. Summary of the Invention

[0004] The purpose of the present invention is to provide an irrigator for surgical nursing, so as to solve the problem in the above background art that the pressure control accuracy of the irrigator in the current market is limited, resulting in further damage to the inner side of the nasal cavity due to excessive flushing pressure.

[0005] To achieve the above object, the present invention provides the following technical solution: A surgical care irrigator, including an irrigating fluid cylinder for containing irrigating fluid, the top of the irrigating fluid cylinder is threadedly connected with a sealing cover body, and a push rod is slidably arranged through the lower end of the irrigating fluid cylinder, and a piston block is fixedly connected to the top of the push rod, and a flushing tube is fixedly connected to the upper end of the sealing cover body; An air storage bag is fixedly installed on the inner wall of the upper end of the sealing cover body, and a movable plate is adhesively fixed below the air storage bag, and an elastic bladder for improving the sealing performance is arranged on the outer side of the upper part of the flushing tube; The lower end of the push rod is fixedly connected with an outer frame, the lower end of the sealing cover body is rotatably connected with a rotating seat, and a fixed ring is also fixedly connected to the lower end of the sealing cover body, and during the lifting process of the outer frame, the rotating seat is driven to rotate through a transmission component, and a limiting component is arranged between the rotating seat and the fixed ring to prevent the push rod and the outer frame from being quickly pushed forward; A pressure regulating component is also arranged at the top of the flushing tube, and the pressure regulating component automatically adjusts the hydraulic pressure at the outlet of the flushing tube during the rotation of the rotating seat.

[0006] Preferably, the piston block is in interference sliding connection with the irrigating fluid cylinder, and the movable plate is slidably connected with the irrigating fluid cylinder, and during the upward movement of the piston block, the movable plate moves upward synchronously under the action of hydraulic pressure and squeezes the elastic bladder.

[0007] Preferably, the movable plate is arranged in an annular structure, and sealing elastic films are uniformly fixedly connected to the inner side of the annular shape of the movable plate, and the ends of the sealing elastic films are mutually attached to seal the through hole on the inner side of the movable plate, and the sealing elastic films are elastically deformed after the hydraulic pressure increases.

[0008] Preferably, the elastic bladder is arranged in an annular structure, and the elastic bladder is embedded and installed on the outer side of the upper part of the flushing tube, and the elastic bladder is connected with the air storage bag through a pipeline, and after the air storage bag is pressed, gas is conveyed to the elastic bladder, and after the elastic bladder expands, it fits against the inner wall of the nasal cavity.

[0009] Through the above technical solution, the piston block slides inside the irrigating fluid cylinder, thereby causing the movable plate to move upward under the action of water pressure and squeeze the air storage bag. At this time, some of the gas in the air storage bag will enter the elastic bladder through the pipeline, causing the elastic bladder to expand and fit against the inner wall of the nasal cavity to achieve the sealing of the nasal cavity.

[0010] Preferably, the upper part of the outer frame is arranged in an annular structure, and the upper part of the outer frame is sleeved on the outer side of the rotating seat, and the transmission component includes balls embedded in the inner wall of the upper part of the outer frame and spiral guide grooves opened on the outer wall of the rotating seat, and the balls roll along the guide grooves, and during the lifting process of the outer frame, the rotating seat is driven to rotate through the balls.

[0011] Preferably, the limiting assembly includes a positioning tooth installed in the groove body at the upper end of the rotating seat in a uniform and elastic manner, and a fixed ring fixedly installed at the lower end of the sealing cover body, and when the rotating seat rotates at a high speed, the positioning tooth rotates under the action of centrifugal force and approaches the fixed ring, and the inner wall of the fixed ring is uniformly provided with grooves, and the positioning tooth and the groove are engaged after elastic rotation.

[0012] Through the above technical solution, when the pushing speed is too fast, the positioning teeth on the rotating seat rotate under the action of centrifugal force and get stuck in the slots at the corresponding positions on the fixed ring, thereby limiting the rotating seat, causing the pushing of the outer frame to be blocked, thereby avoiding excessive flushing pressure.

[0013] Preferably, the voltage regulating assembly includes a magnetic piece telescopically connected to the sealing cover body, and a spring is fixedly connected between the magnetic piece and the inner wall of the sealing cover body, and the magnetic piece and the elastically rotated positioning teeth are arranged correspondingly up and down, and the positioning teeth are made of magnetic material, and the magnetic poles of the opposite surfaces of the magnetic piece and the positioning teeth are the same, and the magnetic piece will move upward under the action of magnetic force.

[0014] Preferably, the upper end of the magnetic sheet is fixedly connected with a preset traction rope, and the pressure regulating assembly also includes an elastic sheet evenly and fixedly connected to the top of the flushing pipe, and an annular limiting ring is sleeved on the outer side of the elastic sheet, and the limiting ring and the upper end of the preset traction rope are fixedly connected.

[0015] Preferably, the elastic sheets are retracted during the downward movement of the limit ring, and elastic diaphragms are fixedly connected between adjacent elastic sheets, and when the magnetic sheet moves upward, the elastic sheets expand outward to push the limit ring upward.

[0016] Through the above technical solution, the positioning teeth rotate elastically under the action of centrifugal force, so that the magnetic sheet moves upward under the action of magnetic force. At this time, the upper ends of multiple elastic sheets gradually move away from each other, and the liquid outlet aperture at the elastic diaphragm becomes larger, thereby reducing the hydraulic pressure during liquid flushing. Compared with the prior art, the beneficial effects of the present invention are: the surgical nursing irrigator can automatically block the nasal cavity to be irrigated during use to prevent the irrigating liquid from flowing back, and can adaptively adjust the irrigating pressure during the irrigating process to effectively prevent the nasal cavity from being damaged by the high impact force of the liquid push, the specific contents are as follows; 1. A piston block, an air storage bag, a movable plate and an elastic bag body are provided. After the end of the irrigation tube is inserted into the nasal cavity, the push rod is pushed to make the piston block slide inside the irrigation liquid cylinder, so that the movable plate moves up under the action of water pressure and squeezes the air storage bag. At this time, part of the gas in the air storage bag will enter the elastic bag body through the pipeline, so that the elastic bag body will expand and fit the inner wall of the nasal cavity to achieve sealing of the nasal cavity. When the elastic bag body cannot expand, the sealing elastic film will automatically deform elastically under the action of hydraulic pressure, so that the irrigation liquid can enter the irrigation tube to achieve effective irrigation of the nasal cavity; 2. An outer frame, a rotating seat and a fixing ring are provided. When the outer frame is pushed, the rolling balls embedded in its upper part will roll along the spiral guide groove, thereby driving the rotating seat to rotate. When the pushing speed is too fast, the rotating seat will rotate synchronously and quickly, so that the positioning teeth on the rotating seat will rotate under the action of centrifugal force and snap into the corresponding slots on the fixing ring, thereby realizing the limit of the rotating seat, resulting in the pushing blockage of the outer frame, thus effectively avoiding the excessive pushing speed of the piston block causing too high flushing pressure; 3. A magnetic sheet, a preset traction rope, an elastic sheet and an elastic diaphragm are provided. When the liquid pushing speed is too fast, the positioning teeth will elastically rotate under the action of centrifugal force, so that the magnetic sheet will move upward under the action of magnetic force. At this time, the force applied by the limiting ring to the elastic sheet decreases, causing the elastic sheet to elastically recover and tend to be vertical. At this time, the upper ends of multiple elastic sheets gradually move away from each other, and the elastic diaphragm is stretched. At this time, the liquid outlet hole diameter at the elastic diaphragm becomes larger, thereby reducing the hydraulic pressure during liquid flushing, thus avoiding nasal cavity damage caused by too strong flushing force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view structural schematic diagram of the present invention; Figure 2 is the top view structural schematic diagram of the present invention; Figure 3 is the sectional view structural schematic diagram of the present invention; Figure 4 is the structural schematic diagram of the movable plate and the sealing elastic film of the present invention; Figure 5 is the sectional view structural schematic diagram of the sealing cover body and the flushing tube of the present invention; Figure 6 is the connection structural schematic diagram of the flushing tube and the elastic bladder of the present invention; Figure 7 is the installation structural schematic diagram of the rotating seat of the present invention; Figure 8 is of the present invention Figure 7 the enlarged structural schematic diagram at A in; Figure 9 is the installation structural schematic diagram of the positioning teeth of the present invention.

[0018] In the figure: 1. Flushing liquid cylinder; 2. Sealing cover body; 3. Push rod; 4. Piston block; 5. Flushing tube; 6. Storage air bag; 7. Movable plate; 8. Sealing elastic film; 9. Elastic bladder; 10. Outer frame; 11. Rolling ball; 12. Rotating seat; 13. Guide groove; 14. Positioning teeth; 15. Fixing ring; 16. Card slot; 17. Magnetic sheet; 18. Spring; 19. Preset traction rope; 20. Elastic sheet; 21. Elastic diaphragm; 22. Limiting ring. DETAILED DESCRIPTION OF THE INVENTION

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: When the existing surgical care irrigator is used for nasal cavity irrigation, it is necessary to manually adjust the irrigation head separately to achieve the sealing of the nasal cavity to prevent the backflow of the irrigation fluid. To solve this technical problem, the following technical content is disclosed in this embodiment. Please refer to Figures 1-6 As shown in the figure; a surgical care irrigator includes an irrigation fluid cylinder 1 for containing irrigation fluid. A sealing cover body 2 is threadedly connected to the top of the irrigation fluid cylinder 1. A push rod 3 is slidably arranged through the lower end of the irrigation fluid cylinder 1. A piston block 4 is fixedly connected to the top of the push rod 3. At the same time, an irrigation tube 5 is fixedly connected to the upper end of the sealing cover body 2. An air storage bag 6 is fixedly installed on the inner wall of the upper end of the sealing cover body 2. A movable plate 7 is adhesively fixed below the air storage bag 6. An elastic bladder 9 for improving the sealing performance is arranged on the outer side of the upper part of the irrigation tube 5. The piston block 4 is in interference sliding connection with the irrigation fluid cylinder 1. The movable plate 7 is slidably connected to the irrigation fluid cylinder 1. During the upward movement of the piston block 4, the movable plate 7 moves upward synchronously under the hydraulic pressure and squeezes the elastic bladder 9.

[0021] The movable plate 7 is arranged in an annular structure. Sealing elastic films 8 are uniformly fixedly connected to the inner ring of the movable plate 7. The ends of the sealing elastic films 8 are mutually attached to block the inner through hole of the movable plate 7. At the same time, the sealing elastic films 8 undergo elastic deformation after the hydraulic pressure increases. The elastic bladder 9 is arranged in an annular structure. The elastic bladder 9 is embedded and installed on the outer side of the upper part of the irrigation tube 5. A pipeline connection is provided between the elastic bladder 9 and the air storage bag 6. After the air storage bag 6 is pressurized, it conveys part of the gas inside it to the elastic bladder 9. At the same time, after the elastic bladder 9 expands, it fits against the inner wall of the nasal cavity.

[0022] By adopting the above technical solution, open the sealing cover body 2, inject irrigation fluid into the irrigation fluid cylinder 1. After rotating and tightening the sealing cover body 2, insert the top of the irrigation tube 5 into the nasal cavity of the patient. Then push the push rod 3, so that the push rod 3 drives the piston block 4 to slide upward inside the irrigation fluid cylinder 1. At this time, the hydraulic pressure inside the irrigation fluid cylinder 1 increases, thereby pushing the entire movable plate 7 upward and squeezing the air storage bag 6. At this time, the air storage bag 6 will convey part of the gas inside it to the elastic bladder 9 through the pipeline, so that the elastic bladder 9 expands. The expanded elastic bladder 9 fits against the inner wall of the patient's nasal cavity, realizing the automatic sealing of the nasal cavity and avoiding the backflow of the irrigation fluid during subsequent irrigation.

[0023] Embodiment 2: The technical content disclosed in this embodiment is a further improvement made on the basis of the above-mentioned embodiment 1. The existing surgical care irrigator cannot limit the liquid pushing speed when in use, and it is inconvenient to automatically adjust the irrigating pressure. In order to further solve this technical problem, this embodiment discloses the following technical content, such as Figures 5-9 As shown; the lower end of the push rod 3 is fixedly connected to the outer frame 10, the lower end of the sealing cover body 2 is rotatably connected to the rotating seat 12, and the lower end of the sealing cover body 2 is also fixedly connected to the fixing ring 15, and the rotating seat 12 is driven to rotate by the transmission component during the lifting process of the outer frame 10, and a limiting component is arranged between the rotating seat 12 and the fixing ring 15 to prevent the push rod 3 and the outer frame 10 from being pushed forward quickly; a pressure regulating component is also arranged on the top of the flushing pipe 5, and the pressure regulating component automatically adjusts the hydraulic pressure at the outlet of the flushing pipe 5 during the rotation of the rotating seat 12, the upper part of the outer frame 10 is arranged in an annular structure, and the upper part of the outer frame 10 is sleeved on the outer side of the rotating seat 12, and the transmission component It includes a ball 11 embedded in the upper inner wall of the outer frame 10 and a spiral guide groove 13 opened on the outer wall of the rotating seat 12. At the same time, the ball 11 is arranged to roll along the guide groove 13, and the rotating seat 12 is driven to rotate by the ball 11 during the lifting and lowering process of the outer frame 10. The limiting component includes a positioning tooth 14 uniformly and elastically rotated and installed in the upper end groove of the rotating seat 12 and a fixed ring 15 fixedly installed at the lower end of the sealing cover body 2. When the rotating seat 12 rotates at a high speed, the positioning tooth 14 rotates under the action of centrifugal force and approaches the fixed ring 15, and the inner wall of the fixed ring 15 is uniformly provided with a groove 16, and the positioning tooth 14 and the groove 16 are engaged after elastic rotation.

[0024] The pressure regulating component includes a magnetic piece 17 telescopically connected to the sealing cover body 2, and a spring 18 is fixedly connected between the magnetic piece 17 and the inner wall of the sealing cover body 2, and the magnetic piece 17 and the positioning tooth 14 after elastic rotation are arranged correspondingly up and down, and the positioning tooth 14 is made of magnetic material, and the magnetic poles of the opposite surfaces of the magnetic piece 17 and the positioning tooth 14 are the same, and the magnetic piece 17 will move upward under the action of magnetic force, and the upper end of the magnetic piece 17 is fixedly connected to a preset traction rope 19. The pressure regulating component also includes an elastic piece 20 uniformly fixedly connected to the top of the flushing pipe 5, and the outer side of the elastic piece 20 is provided with an annular limiting ring 22, and the limiting ring 22 is fixedly connected to the upper end of the preset traction rope 19, and the limiting ring 22 is retracted during the downward movement of the limiting ring 22, and an elastic diaphragm 21 is fixedly connected between adjacent elastic pieces 20, and when the magnetic piece 17 moves upward, the elastic piece 20 expands outward to push the limiting ring 22 to move upward.

[0025] Through the above technical solution, when flushing, the outer frame 10 is pushed, thereby driving the piston block 4 to move upward. As the outer frame 10 moves upward, the rolling balls 11 installed on the inner wall of its upper part will roll along the spiral guide groove 13, thereby driving the rotating seat 12 to rotate synchronously. When the liquid pushing speed is too fast, the rotating seat 12 will rotate rapidly, causing the multiple positioning teeth 14 on the rotating seat 12 to elastically rotate under the action of centrifugal force, so that the positioning teeth 14 automatically snap into the card slots 16 on the fixed ring 15, thereby realizing the positioning of the rotating seat 12, and then realizing the blocking of the outer frame 10, effectively avoiding the piston block 4 from being pushed too fast and avoiding excessive flushing pressure. When the positioning teeth 14 elastically rotate, they will move to the lower side of the magnetic sheet 17. At this time, the magnetic sheet 17 will move upward under the magnetic force of the positioning teeth 14 and compress the spring 18. At this time, the limiting ring 22 will reduce the force applied to the elastic sheet 20. At this time, the elastic sheet 20 will reset under its own elastic force and tend to be vertical, thereby stretching the elastic diaphragm 21, so that the liquid outlet hole diameter at the upper end of the elastic diaphragm 21 is adjusted and increased, thereby reducing the hydraulic pressure at the liquid outlet, realizing the automatic adjustment of the flushing hydraulic pressure, and avoiding damage to the inner side of the nasal cavity due to excessive flushing force.

[0026] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A surgical care irrigator, comprising a rinsing liquid cylinder (1) for containing rinsing liquid, wherein the top of the rinsing liquid cylinder (1) is threadedly connected to a sealing cover body (2), and a push rod (3) is slidably provided through the lower end of the rinsing liquid cylinder (1), and a piston block (4) is fixedly connected to the top of the push rod (3), and a rinsing tube (5) is fixedly connected to the upper end of the sealing cover body (2); It is characterized in that An air storage bag (6) is fixedly mounted on the inner wall of the upper end of the sealing cover body (2), and a movable plate (7) is bonded and fixed below the air storage bag (6); an elastic bag body (9) for improving sealing performance is arranged on the outer side of the upper part of the flushing pipe (5); The lower end of the push rod (3) is fixedly connected to the outer frame (10), the lower end of the sealing cover body (2) is rotatably connected to the rotating seat (12), and the lower end of the sealing cover body (2) is also fixedly connected to the fixing ring (15), and during the lifting process of the outer frame (10), the rotating seat (12) is driven to rotate by the transmission component, and a limit position component is provided between the rotating seat (12) and the fixing ring (15) to prevent the push rod (3) and the outer frame (10) from being quickly advanced; A pressure regulating assembly is also provided at the top of the flushing pipe (5), and the pressure regulating assembly automatically regulates the hydraulic pressure at the outlet of the flushing pipe (5) during the rotation of the rotating seat (12).

2. A surgical care irrigator according to claim 1, characterized in that: The piston block (4) and the flushing liquid cylinder (1) are connected in an interference sliding manner, and the movable plate (7) and the flushing liquid cylinder (1) are connected in a sliding manner. When the piston block (4) moves upward, the movable plate (7) moves upward synchronously under the action of hydraulic pressure and squeezes the elastic capsule (9).

3. A surgical care irrigator according to claim 2, characterized in that: The movable plate (7) is arranged in an annular structure, and a sealing elastic film (8) is evenly and fixedly connected to the inner side of the annular structure of the movable plate (7), and the ends of the sealing elastic film (8) fit together to seal the inner through hole of the movable plate (7), and the sealing elastic film (8) is elastically deformed after the hydraulic pressure increases.

4. A surgical care irrigator according to claim 2, characterized in that: The elastic sac (9) is arranged in an annular structure, and is embedded and installed on the upper outer side of the flushing tube (5). The elastic sac (9) and the air storage bag (6) are connected by a pipeline, and the air storage bag (6) delivers gas to the elastic sac (9) after being pressurized, and the elastic sac (9) is inflated and fits against the inner wall of the nasal cavity.

5. The surgical care irrigator according to claim 1, characterized in that: The upper portion of the outer frame (10) is arranged in an annular structure, and the upper portion of the outer frame (10) is sleeved on the outer side of the rotating seat (12), and the transmission component comprises a ball (11) embedded in the inner wall of the upper portion of the outer frame (10) and a spiral guide groove (13) opened on the outer wall of the rotating seat (12), and the ball (11) is arranged to roll along the guide groove (13), and the rotating seat (12) is driven to rotate by the ball (11) during the lifting process of the outer frame (10).

6. A surgical care irrigator according to claim 1, characterized in that: The limiting assembly comprises a positioning tooth (14) which is evenly and elastically mounted in a groove body at the upper end of the rotating seat (12) and a fixing ring (15) which is fixedly mounted at the lower end of the sealing cover body (2). When the rotating seat (12) rotates at a high speed, the positioning tooth (14) rotates under the action of centrifugal force and approaches the fixing ring (15). The inner wall of the fixing ring (15) is evenly provided with a fixing groove (16). After the elastic rotation, the positioning tooth (14) and the fixing groove (16) are engaged with each other.

7. A surgical care irrigator according to claim 1, characterized in that: The voltage regulating assembly comprises a magnetic sheet (17) which is telescopically connected to the sealing cover body (2), a spring (18) being fixedly connected between the magnetic sheet (17) and the inner wall of the sealing cover body (2), and the magnetic sheet (17) and the elastically rotated positioning tooth (14) are arranged correspondingly up and down, the positioning tooth (14) is made of magnetic material, and the magnetic poles of the opposite surfaces of the magnetic sheet (17) and the positioning tooth (14) are the same, and the magnetic sheet (17) will move upward under the action of magnetic force.

8. A surgical care irrigator according to claim 7, characterized in that: The upper end of the magnetic sheet (17) is fixedly connected to a preset traction rope (19), and the pressure regulating assembly further comprises an elastic sheet (20) evenly fixedly connected to the top of the flushing pipe (5), and an annular limiting ring (22) is sleeved on the outer side of the elastic sheet (20), and the limiting ring (22) is fixedly connected to the upper end of the preset traction rope (19).

9. A surgical care irrigator according to claim 8, characterized in that: The limiting ring (22) retracts the elastic sheets (20) during the downward movement, and an elastic diaphragm (21) is fixedly connected between adjacent elastic sheets (20), and when the magnetic sheet (17) moves upward, the elastic sheets (20) expand outward to push the limiting ring (22) upward.

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