Sputum suction device for ICU breathing machine

Abstract

The invention provides a sputum suction device for an ICU breathing machine, and particularly relates to the technical field of medical instruments.The sputum suction device comprises a cylinder, a timing controller is fixedly installed on one side of the cylinder, a screw cap is connected to the upper portion of the cylinder, a butt-joint pipe is fixedly connected to one side of the upper portion of the cylinder, one end of the butt-joint pipe extends into the cylinder, and the other end of the butt-joint pipe extends into the cylinder; the rotary ring and the first protrusion which can rotate are arranged on the portion of the sputum discharging end of the sputum discharging pipe, and vibration force can be continuously generated in cooperation with the fixed ring and the second protrusion, so that falling of sputum from the sputum discharging pipe is accelerated, and adhesion and residue of the sputum at the end, close to the collecting barrel, of the sputum discharging pipe are reduced; by means of the sealing cover which is automatically sealed above the collecting barrel, the collecting barrel with collected sputum is sealed in time, the situation that pathogens in the sputum are spread to the surrounding environment along with air in the process that the collecting barrel is taken to transfer and treat the sputum can be avoided, and therefore the risk that a patient and medical staff are infected is reduced.

Description

Technical Field

[0001] The invention provides a sputum suction device for an ICU ventilator, and particularly relates to the technical field of medical devices. Background Art

[0002] Patients using ventilators in the ICU tend to have sputum easily accumulate in their respiratory tracts due to their weakened or lost ability to cough up sputum. The sputum suction device can promptly remove sputum, secretions and other foreign matter from the respiratory tract, prevent the respiratory tract from being blocked, maintain the patency of the respiratory tract, ensure smooth gas exchange, and safeguard the patient's respiratory function. In the current clinical sputum suction operation process, the single sputum suction time is generally not allowed to exceed 15 seconds, and for patients with more sputum, the time interval between two sputum suctions must not be less than 3 to 5 minutes.

[0003] The utility model with the authorization announcement number CN220899227U discloses an automatic sputum suction device for a neonatal ventilator. The automatic sputum suction device for a neonatal ventilator is convenient for fixing the material box by setting a fixing device, and convenient for sputum suction work by the suction mechanism. When disassembling the material box, the pressing plate can be pulled outward to drive the moving rod to move outward, and the moving rod moves outward to drive the limit block to move so that it is disengaged from the inside of the limit groove, thereby releasing the limit of the material box, and then the user can directly take out the material box. In addition, the utility model with the authorization announcement number CN215023389U discloses an automatic sputum suction device for a neonatal ventilator, which controls the rotation of the pressing member by driving a motor to generate contact and extrusion with the deformable member, and then uses the pressure difference principle to suck the sputum in the sputum suction head into the box body, and further collects it into the sputum storage chamber. The motor drive replaces the manual sputum suction method, which can reduce the workload of medical personnel in manual operation and improve the efficiency of sputum collection.

[0004] Although the above two automatic sputum suction devices for ventilators have the effect of suctioning and collecting sputum, they still have the following shortcomings: In the above two sputum suction devices, both use the negative pressure effect to cooperate with the sputum suction pipeline to collect sputum into the container. However, when the above two sputum suction devices are used for sputum suction, the sticky characteristics of the sputum in the airway of some patients are not taken into account. Since the sputum itself is sticky, part of the sputum is attached to the discharge end of the sputum suction pipeline. This is because when the sputum flows through the pipeline and flows out from the pipe mouth, the pressure is unstable when the sputum reaches the end opening of the sputum suction pipeline, resulting in a slow flow rate, making it easy for part of the sputum to adhere to the end of the sputum discharge tube and unable to fall into the collection container in time, thereby causing the problem of incomplete sputum collection after sputum suction. At the same time, during the negative pressure sputum suction process, the gas discharged by the negative pressure device, that is, the gas in the patient's airway, contains bacteria. If it is directly discharged into the ward environment without treatment, it is easy to cause bacterial contamination to the environment in the ward.

[0005] Therefore, the present invention proposes a sputum suction device for an ICU ventilator to compensate for and improve the deficiencies of the prior art. Summary of the invention

[0006] In view of the defects existing in the prior art, the present invention provides a sputum suction device for an ICU ventilator, which can effectively solve the relevant technical problems raised by the background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention discloses a sputum suction device for an ICU ventilator, comprising a cylinder, a timing controller is fixedly installed on one side of the cylinder, a rotary cover is connected to the top of the cylinder, a butt pipe is fixedly connected to one side of the top of the cylinder, one end of the butt pipe extends to the inside of the cylinder, and the other end extends to the outside of the cylinder, one end of the butt pipe is connected to a sputum suction catheter, and the other end of the butt pipe is connected to a sputum discharge pipe, a partition plate is fixedly connected to the middle part of the cylinder, a suction pump is fixedly installed on the bottom of the cylinder cavity, the suction pump is located below the partition plate, an inlet end above the suction pump is fixedly connected to a suction pipe, the upper end of the suction pipe passes through the partition plate upwards, a switching cylinder is rotatably connected to the upper surface of the partition plate, a plurality of collection cylinders are evenly arranged inside the switching cylinder, the lower end of the sputum discharge pipe corresponds to the top of the collection cylinder, a through opening is opened on one side of the bottom of the cylinder, and a sealing door is hinged at the through opening, a pressure valve is fixedly installed on the sealing door, a sterilizing device is evenly fixedly connected to the bottom surface of the partition plate, and a switching storage collection mechanism is also arranged inside the cylinder; A vibrating sputum discharge mechanism is arranged inside the upper part of the cylinder, and the vibrating sputum discharge mechanism includes a base plate fixedly connected to the inner wall above the cylinder, a servo motor is fixedly connected to the upper surface of the base plate, a synchronous wheel 1 is fixedly connected to the output shaft below the servo motor, an end of the base plate away from the inner wall of the cylinder is rotatably connected to a swivel, protrusions 1 are evenly arranged on the inner ring surface of the swivel, a fixed ring is fixedly connected to the outer wall of the sputum discharge tube at a position corresponding to the swivel, protrusions 2 are evenly arranged on the outer ring surface of the fixed ring, a synchronous wheel 2 is fixedly connected to the outer ring surface below the swivel, and a synchronous belt is transmission-connected between the synchronous wheel 2 and the synchronous wheel 1.

[0008] Preferably, the cylinder body and the screw cap are made of transparent visible materials, and the screw cap is threadably connected to the cylinder body.

[0009] Preferably, the portion where the sputum discharge tube communicates with the butt joint tube is connected by a quick connector.

[0010] Preferably, the collecting cylinder is distributed in an annular shape, and a groove block is provided at the bottom of the collecting cylinder, and a bottom groove is opened at a position corresponding to the groove block on the inner bottom surface of the switching cylinder, and the bottom groove is plug-fitted with the groove block.

[0011] Preferably, the switching cylinder and the collecting cylinder are made of transparent visible materials, and a handle is provided on one side above the collecting cylinder.

[0012] Preferably, the slot block consists of a central disk and rectangular blocks evenly distributed on the outer annular surface of the disk.

[0013] Preferably, the protrusion 1 and the protrusion 2 are made of elastic rubber material and are spherical in shape.

[0014] Preferably, the switching, distributing and collecting mechanism includes a bottom plate fixedly connected to the upper inner wall of the cylinder, the bottom plate is located directly below the base plate, one end of the bottom plate away from the inner wall of the cylinder is rotatably connected to a transmission shaft, the upper end of the transmission shaft extends to the top of the bottom plate, a pin hole is provided at the upper end of the transmission shaft, a transmission assembly for driving the transmission shaft to rotate is provided at a position corresponding to the pin hole at the center of the bottom surface of the synchronous wheel, a main gear is fixedly connected to the lower end of the transmission shaft, a secondary gear ring is fixedly sleeved on the outer ring surface of the switching cylinder at a position corresponding to the main gear, and the secondary gear ring is meshed with the main gear.

[0015] Preferably, the transmission assembly includes an electrically controlled telescopic rod fixedly connected to the center of the bottom surface of the synchronous wheel, and a pin is fixedly connected to the telescopic end below the electrically controlled telescopic rod. The pin and the pin hole can be plugged together, and the pin is composed of a cylinder and serrations evenly arranged on the outer ring surface of the cylinder.

[0016] Preferably, a self-sealing cover mechanism is provided on the side of the bottom plate close to the collecting barrel, and the self-sealing cover mechanism includes a grooved side strip fixedly connected to the upper outer wall of the collecting barrel, a sealing cover is slidably connected in the groove of the grooved side strip, a spring is connected between the outer wall of the sealing cover and the groove wall of the grooved side strip, a positive magnetic plate is fixedly connected to the upper surface of the sealing cover, and a negative magnetic plate is fixedly connected to the side of the bottom plate close to the collecting barrel.

[0017] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: During the sputum suction process, the sputum suction device is provided with a rotatable rotating ring and a protrusion 1 at the end of the sputum discharge tube for discharging sputum, and can continuously generate vibration force in cooperation with the fixed ring and the protrusion 2, thereby accelerating the sputum to fall from the sputum discharge tube, reducing the adhesion and residue of sputum at the end of the sputum discharge tube close to the collection tube, and thus ensuring the effectiveness of sputum collection after sputum suction; The suction device provides continuous and stable suction force through a suction pump, which can quickly and effectively suck out sputum in the patient's airway. It can also control the time of a single suction and comply with the requirements of existing clinical suction operations, thereby effectively avoiding unnecessary harm to the patient during the suction process and ensuring the safety of the suction process.

[0018] The gas discharged from the suction pump is temporarily retained in the lower part of the cylinder through the pressure valve, and then the discharged gas is sterilized by the ultraviolet sterilization lamp installed in the space below the cylinder, so that when the gas is discharged to the outside, the bacteria in the gas discharged from the suction pump are reduced, thereby reducing the degree of secondary pollution to the environment in the ward; When the medical staff is performing secondary sputum suction on the patient, the servo motor drives the collection tube to realize the automatic switching effect, so as to separately collect the sputum sucked out twice, and avoid the two suctions being in the same container, which causes the sputum sucked out twice to be mixed. In this way, the medical staff can observe the difference between the two sputums after the suction is completed, and it is also convenient for the medical staff to take out the collection tube and sample the sputum sucked out twice for testing, and then assist the medical staff in comprehensively judging the condition of the sputum in the patient's airway by testing the sputum; At the same time, during the secondary sputum collection process, the collection tube that has collected sputum can be sealed in time by automatically sealing the sealing cover on the top of the collection tube, effectively preventing the pathogens in the sputum from spreading into the tube, and avoiding the pathogens in the sputum from spreading to the surrounding environment with the air during the process of taking the collection tube to transfer and process the sputum, thereby reducing the risk of infection for patients and medical staff. In addition, the sealed collection tube can also reduce the entry of impurities from the external environment into the collection tube when it is subsequently sent for inspection, thereby avoiding contamination of the sputum during the inspection process and affecting the detection effect of the sputum. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a main perspective structural diagram of the present invention; Figure 2 It is a three-dimensional structural diagram of the relevant parts of the cylinder of the present invention in a cut-away state; Figure 3 It is a three-dimensional structural diagram of the relevant parts of the present invention when the collecting cylinder and the switching cylinder are separated; Figure 4 It is a partial three-dimensional structural diagram of the grooved side strip and the related parts of the sealing cover of the present invention; Figure 5 It is a partial structural diagram of the relevant components of the sterilization device of the present invention; Figure 6 It is a partial three-dimensional structural diagram of the relevant components of the sterilization device of the present invention; Figure 7 It is a partial three-dimensional structural diagram of a relevant component of the synchronous wheel of the present invention; Figure 8 It is a partial three-dimensional structural diagram of the relevant components of the substrate of the present invention in a cut-away state; Fig. 9 It is a partial three-dimensional structural diagram of the relevant parts of the present invention when the rotating ring and the fixed ring are separated; Fig.10 For the present invention Figure 2A partial enlarged three-dimensional structure diagram in the middle; Fig.11 It is a partial three-dimensional structural diagram of the relevant components at the bottom plate of the present invention.

[0020] The numbers in the figure represent: 1. Cylinder; 101. Timing controller; 11. Screw cap; 12. Butt joint; 13. Suction catheter; 14. Sputum discharge tube; 15. Partition plate; 16. Suction pump; 1601. Sealing door; 1602. Pressure valve; 1603. Sterilization device; 17. Suction tube; 18. Switching cylinder; 1801. Bottom tank; 19. Collection cylinder; 1901. Tank block; Self-sealing cover mechanism: 191, grooved side strip; 192, sealing cover; 193, spring; 194, positive magnetic sheet; 195, negative magnetic sheet; Vibrating sputum discharge mechanism: 21, base plate; 2101, servo motor; 22, synchronous wheel 1; 23, rotating ring; 2301, protrusion 1; 24, fixed ring; 2401, protrusion 2; 25, synchronous wheel 2; 26, synchronous belt; Switching storage and collection mechanism: 31, bottom plate; 32, transmission shaft; 33, main gear; 34, auxiliary gear ring; 35, electric control telescopic rod; 36, latch; 37, pin hole. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] Example 1: Reference Figures 1 to 3, a sputum suction device for an ICU ventilator, comprising a barrel 1, a timing controller 101 is fixedly installed on one side of the barrel 1, a screw cap 11 is connected to the top of the barrel 1, the barrel 1 and the screw cap 11 are made of transparent visible materials, preferably hard acrylic material, the screw cap 11 is threadedly connected to the barrel 1, and the screw cap 11 is threadedly connected to the top of the barrel 1, so that personnel can rotate it to open and take out the sputum collected in the barrel 1, and the screw cap 11 ensures the sealing of the barrel 1 when it is closed. A docking pipe 12 is fixedly connected to one side above the barrel 1, one end of the docking pipe 12 extends to the inside of the barrel 1, and the other end extends to the outside of the barrel 1, one end of the docking pipe 12 is fixedly connected to a sputum suction catheter 13, and the other end of the docking pipe 12 is connected to a sputum discharge pipe 14, and the portion where the sputum discharge pipe 14 is connected to the docking pipe 12 is connected by a quick connector, so that personnel can remove the sputum discharge pipe 14 for disinfection and sterilization. A partition plate 15 is fixedly connected to the middle part of the cylinder 1, and the interior of the cylinder 1 is divided into two spaces, an upper space and an lower space, by the partition plate 15. A suction pump 16 is fixedly installed at the bottom of the inner cavity of the cylinder 1, and the suction pump 16 is located below the partition plate 15. The inlet end above the suction pump 16 is fixedly connected with a suction pipe 17, and the upper end of the suction pipe 17 passes through the partition plate 15 upward, specifically, passes through the partition plate 15 upward and is located in the internal space above the cylinder 1. As the suction pump 16 is started, air is sucked in the upper space inside the cylinder 1 through the suction pipe 17 to form a negative pressure space, and a switching cylinder 18 is rotatably connected to the upper surface of the partition plate 15, and a plurality of collecting cylinders 19 are evenly arranged inside the switching cylinder 18. The switching cylinder 18 and the collecting cylinder 19 are made of transparent visible materials, specifically hard acrylic material, and a handle is provided on one side above the collecting cylinder 19, please refer to Figure 2 The handle is located on the side of the collecting tube 19 facing the axis of the switching tube 18, so that the user can take it by hand. Figure 3 The collecting tube 19 is distributed in an annular shape, and a groove block 1901 is provided at the bottom of the collecting tube 19. A bottom groove 1801 is provided at a position corresponding to the groove block 1901 on the inner bottom surface of the switching tube 18. The bottom groove 1801 is plugged and matched with the groove block 1901. When in use, the medical staff manually rotates the rotary cover 11 to open it, and then lifts the collecting tube 19 to conveniently remove the collecting tube 19 from the switching tube 18. The lower end of the sputum discharge tube 14 is located above the collecting tube 19, so that the collecting tube 19 can catch the sputum flowing out of the sputum discharge tube 14.

[0023] When the sputum suction device is used: the medical staff first places the cylinder 1 steadily on the medical trolley, and then inserts the end of the handheld sputum suction catheter 13 away from the docking tube 12 into the patient's airway, and then starts the suction pump 16. After the suction pump 16 is started, the air in the upper internal space of the cylinder 1 is extracted downward through the suction tube 17, and the extracted air is discharged into the space below the cylinder 1. As the air in the upper internal space of the cylinder 1 is extracted, a negative pressure is formed in the upper internal space of the cylinder 1. Then, the sputum in the patient's airway is sucked out through the sputum discharge tube 14, the docking tube 12, and the sputum suction catheter 13. The sucked sputum is discharged from the lower end of the sputum discharge tube 14 located inside the cylinder 1, and falls into a corresponding collection tube 19, so as to realize the automatic collection of the sputum in the patient's airway after being sucked out. In this process, the medical staff can control the suction pump 16 to start for no more than fifteen seconds through the timing controller 101, that is, the suction pump 16 can be automatically closed after starting for no more than fifteen seconds to stop suctioning. This is to comply with the existing clinical suction operation regulations that the single suction time should not exceed fifteen seconds, so as to avoid damage to the patient caused by excessive suction in a single time.

[0024] Therefore, the suction device provides a continuous and stable suction force through the suction pump 16, which can quickly and effectively suck out the sputum in the patient's airway, and can control the time of a single suction and follow the requirements of existing clinical suction operations, thereby effectively avoiding unnecessary harm to the patient during the suction process and ensuring the safety of the suction process.

[0025] Further, refer to Figure 1 , Figure 2 as well as Figures 4 to 6 A through hole is provided on one side of the bottom of the cylinder 1, and a sealing door 1601 is hinged at the through hole. The sealing door 1601 is connected to the cylinder 1 by a snap-fit ​​connection. When in use, the sealing door 1601 is in a closed state. A pressure valve 1602 is fixedly installed on the sealing door 1601. When in use, the interior of the cylinder 1 is connected to the external space when the pressure valve 1602 is opened. At the same time, refer to Figure 2 The outlet end of the suction pump 16 faces the sealing door 1601 and the pressure valve 1602. The bottom surface of the partition plate 15 is evenly fixedly connected with a sterilizing device 1603, and a switching storage collection mechanism is also provided inside the cylinder 1. The sterilizing device 1603 is preferably an ultraviolet sterilizing lamp, which is distributed in a ring shape on the bottom surface of the partition plate 15.

[0026] When the sputum suction device is used: in the above process, when the suction pump 16 is started to suck air to generate negative pressure for suction, the sterilization device 1603 which is an ultraviolet sterilization lamp is started at the same time. The outlet end of the suction pump 16 will discharge the gas extracted during suction, and the discharged gas will enter the space inside the lower part of the cylinder 1. At this time, under the action of the pressure valve 1602, the gas cannot be discharged from the pressure valve 1602 and the sealing door 1601, that is, the gas will temporarily remain in the space below the cylinder 1. At this time, under the irradiation of the ultraviolet sterilization lamp, the discharged gas is sterilized. When the pressure of the gas in the space below the cylinder 1 reaches the pressure rating of the pressure valve 1602, the pressure valve 1602 automatically opens and the sterilized gas will be discharged from the inside of the cylinder 1.

[0027] In this way, the gas discharged by the suction pump 16 is temporarily retained in the lower interior of the cylinder 1 through the pressure valve 1602, and then the discharged gas is sterilized by the ultraviolet sterilization lamp arranged in the space below the cylinder 1, so that when the gas is discharged to the outside, the bacteria in the gas discharged by the suction pump 16 are reduced, thereby reducing the secondary pollution to the environment in the ward.

[0028] Embodiment 2: Based on Embodiment 1, refer to Figure 2 , Figures 7 to 9 A vibrating sputum discharge mechanism is arranged inside the upper part of the cylinder 1. The vibrating sputum discharge mechanism comprises a base plate 21 fixedly connected to the inner wall above the cylinder 1. A servo motor 2101 is fixedly connected to the upper surface of the base plate 21. A synchronous wheel 22 is fixedly connected to the output shaft below the servo motor 2101. A rotating ring 23 is rotatably connected to the end of the base plate 21 away from the inner wall of the cylinder 1. The inner ring surface of the rotating ring 23 is evenly provided with protrusions 1 2301. A fixed ring 24 is fixedly connected to the outer wall of the sputum discharge tube 14 at a position corresponding to the rotating ring 23. The outer ring surface of the fixed ring 24 is evenly provided with protrusions 2401. The protrusions 1 2301 and the protrusions 2 2401 are made of elastic rubber material, and both are spherical. A synchronous wheel 25 is fixedly connected to the outer ring surface below the rotating ring 23. A synchronous belt 26 is connected between the synchronous wheel 25 and the synchronous wheel 1 22.

[0029] When the sputum suction device is used: During the above sputum suction process, the medical staff starts the servo motor 2101 at the same time, and drives the synchronous wheel 1 22 to rotate through the servo motor 2101. After the synchronous wheel 1 22 rotates, it drives the synchronous wheel 2 25 to rotate synchronously through the synchronous belt 26, and then drives the rotating ring 23 and the protrusion 1 2301 to rotate synchronously through the synchronous wheel 25. In this process, the protrusion 1 2301 will constantly conflict with the protrusion 2 2401, thereby generating a vibration force at the part of the sputum discharge tube 14 near one end of the collection tube 19, and the vibration force is transmitted to the part of the sputum discharge tube 14 near one end of the collection tube 19, and the generated vibration force is used to accelerate the sputum to fall from the sputum discharge tube 14. After the sputum suction is completed, the servo motor 2101 is turned off.

[0030] By this, during the sputum suction process, the sputum suction device is provided with a rotatable ring 23 and a protrusion 2301 at the end of the sputum discharge tube 14 where sputum is discharged, which cooperate with the fixed ring 24 and the protrusion 2 2401 to continuously generate vibration force, thereby accelerating the sputum to fall from the sputum discharge tube 14, reducing the adhesion and residue of sputum on the end of the sputum discharge tube 14 close to the collecting tube 19, and thus ensuring the effectiveness of the sputum collection after suction.

[0031] Embodiment 3: Based on Embodiments 1 and 2, refer to Figure 2 , Figure 10 to Figure 11 The switching storage collection mechanism includes a bottom plate 31 fixedly connected to the inner wall above the cylinder 1. The bottom plate 31 is located directly below the base plate 21. The end of the bottom plate 31 away from the inner wall of the cylinder 1 is rotatably connected to a transmission shaft 32. The upper end of the transmission shaft 32 extends to the top of the bottom plate 31. A pin hole 37 is provided at the upper end of the transmission shaft 32. A transmission assembly for driving the transmission shaft 32 to rotate is provided at a position corresponding to the pin hole 37 at the bottom center of the synchronous wheel 22. The transmission assembly includes an electric telescopic rod 35 fixedly connected to the bottom center of the synchronous wheel 22. A latch 36 is fixedly connected to the telescopic end below the electric telescopic rod 35. The latch 36 and the pin hole 37 can be plugged in and matched. Please refer to Fig. 9 The latch 36 is composed of a cylinder and saw teeth evenly arranged on the outer ring surface of the cylinder to ensure the stability of the rotation of the latch 36 and the pin hole 37 after being plugged in. The lower end of the transmission shaft 32 is fixedly connected to the main gear 33, and the position of the outer ring surface of the switching cylinder 18 corresponding to the main gear 33 is fixedly sleeved with a secondary gear ring 34, which meshes with the main gear 33.

[0032] When the sputum suction device is used: Since some patients have a lot of sputum in the airway, one suction of sputum is not enough to completely suck out the sputum in the airway. At this time, based on the existing clinical sputum suction operation requirements, a second suction is required after an interval of three to five minutes. At this time, the electrically controlled telescopic rod 35 is started to drive the latch 36 to move vertically downward through its telescopic end until the latch 36 is plugged into the pin hole 37, and then the servo motor 2101 is started at the same time to drive the transmission shaft 32 and the main gear 33 to rotate, and the switching cylinder 18 is driven to rotate through the main gear 33 and the auxiliary gear ring 34. Specifically, the angle of rotation of the switching cylinder 18 driven by the main gear 33 can make another empty collection cylinder 19 rotate to correspond to the lower end of the sputum discharge tube 14, and then the servo motor 2101 is stopped, and the latch 36 is separated upward from the pin hole 37 through the electrically controlled telescopic rod 35. Afterwards, the medical staff can start the second sputum suction according to the suction operation in the above process, and the sputum sucked out for the second time will fall into another empty collection tube 19, so as to achieve the purpose of separately collecting and storing the sputum in the two sputum suction processes.

[0033] In this way, when the medical staff performs secondary suction on the patient, the servo motor 2101 drives the collecting tube 19 to achieve automatic switching effect, so as to separately collect the sputum sucked out twice, and avoid the two suctions being in the same container, which causes the sputum sucked out twice to be mixed. In this way, the medical staff can observe the difference between the two sputums after the suction is completed. At the same time, it is also convenient for the medical staff to take out the collecting tube 19 and sample the sputum sucked out twice for testing, and then assist the medical staff in comprehensively judging the condition of the sputum in the patient's airway by testing the sputum.

[0034] Embodiment 4: Based on Embodiments 1, 2, and 3, refer to Figure 2 , Figure 4 , Fig.10 , Fig.11 A self-sealing cover mechanism is provided on one side of the bottom plate 31 close to the collecting tube 19. The self-sealing cover mechanism includes a grooved side strip 191 fixedly connected to the outer wall above each collecting tube 19. A sealing cover 192 is slidably connected in the groove of the grooved side strip 191. Figure 2 , Figure 4 As shown, the sealing cover 192 corresponds to the top of the collection tube 19 one by one, except for the sealing cover 192 corresponding to the lower end of the sputum discharge tube 14 at the beginning, the rest of the sealing covers 192 are sealed on the top of the collection tube 19. A spring 193 is connected between the outer wall of the sealing cover 192 and the groove wall of the grooved side strip 191, a positive magnetic sheet 194 is fixedly connected to the upper surface of the sealing cover 192, and a negative magnetic sheet 195 is fixedly connected to the side of the bottom plate 31 close to the collection tube 19, and the positive magnetic sheet 194 and the negative magnetic sheet 195 are adsorbed and matched.

[0035] When the sputum suction device is used: initially, a sealing cover 192 above a collecting cylinder 19 corresponding to the lower end of the sputum discharge tube 14 does not cover the upper part thereof. At this time, the positive magnetic sheet 194 and the negative magnetic sheet 195 disposed above the sealing cover 192 are in an adsorption state, and the spring 193 correspondingly disposed in the groove of the grooved side strip 191 is in a compressed state. When the first sputum suction is finished in the above process, the collection tube 19 needs to be rotated for the second sputum collection. At this time, as the next empty collection tube 19 rotates, the grooved side strip 191 and other structures above it will be driven to rotate synchronously. When the next empty collection tube 19 rotates to correspond to the lower end of the sputum discharge tube 14, the sealing cover 192 above the next empty collection tube 19 will be driven to slide horizontally along the track of the grooved side strip 191 in the direction close to the negative magnetic sheet 195 under the magnetic attraction of the opposite magnetism of the positive magnetic sheet 194 and the negative magnetic sheet 195. During the process, the spring 193 is compressed until the sealing cover 192 no longer blocks the top of the collection tube 19. In this way, during the second sputum collection, the top of the corresponding collection tube 19 is in an open state. After the first suction, the collection tube 19 containing the sputum is rotated to a position away from the sputum discharge tube 14. During this process, the corresponding sealing cover 192 above the collection tube 19 is automatically sealed to the top of the collection tube 19 under the action of the rebound force of the spring 193.

[0036] Thus, during the secondary sputum collection process, the collection tube 19 that has collected sputum can be sealed in time by automatically sealing the sealing cover 192 above the collection tube 19, effectively preventing the pathogens in the sputum from spreading into the cylinder body 1. It can also be avoided that during the process of taking the collection tube 19 to transfer and process the sputum, the pathogens in the sputum are spread into the surrounding environment with the air, thereby reducing the risk of infection for patients and medical staff.

[0037] Finally, when the sputum suction is completed, the medical staff turns off the suction pump 16 and the servo motor 2101. Then, the rotary cover 11 is opened by manual rotation, and it is removed from the top of the barrel 1, and then the handle above the sputum collection tube 19 is held and lifted upward to separate the groove block 1901 and the bottom groove 1801. Then, the medical staff can take out the collection tube 19 from the barrel 1 and the switching tube 18, and then send the collection tube 19 containing sputum to the detection room for sputum detection in time, so as to improve the convenience of the sputum suction device when using the collection tube 19 that can be separated and taken out. When the sealed collection tube 19 is sent for inspection in the subsequent inspection link, it can also reduce the impurities in the external environment from entering the collection tube 19, so as to avoid the sputum being contaminated during the inspection process and affecting the detection effect of the sputum.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sputum suction device for an ICU ventilator, comprising a cylinder (1), characterized in that: A timing controller (101) is fixedly mounted on one side of the cylinder (1); a screw cap (11) is connected to the top of the cylinder (1); a butt joint (12) is fixedly connected to one side of the top of the cylinder (1); one end of the butt joint (12) extends to the inside of the cylinder (1), and the other end extends to the outside of the cylinder (1); one end of the butt joint (12) is connected to a sputum suction catheter (13); the other end of the butt joint (12) is connected to a sputum discharge tube (14); a partition plate (15) is fixedly connected to the middle of the inside of the cylinder (1); a suction pump (16) is fixedly mounted on the bottom of the inner cavity of the cylinder (1); the suction pump (16) is located below the partition plate (15); the inlet end above the suction pump (16) is fixedly connected to a suction pipe (13); and the suction pipe (14) is fixedly mounted on the bottom of the inner cavity of the cylinder (1); the suction pump (16) is located below the partition plate (15); and the inlet end above the suction pump (16) is fixedly connected to a suction pipe (14). The upper end of the suction tube (17) passes through the partition plate (15) upwards, the upper surface of the partition plate (15) is rotatably connected to a switching cylinder (18), a plurality of collecting cylinders (19) are evenly arranged inside the switching cylinder (18), the lower end of the sputum discharge tube (14) corresponds to the upper part of the collecting cylinder (19), a through opening is opened on one side of the bottom of the cylinder body (1), and a sealing door (1601) is hinged at the through opening, a pressure valve (1602) is fixedly installed on the sealing door (1601), a vibrating sputum discharge mechanism is arranged inside the upper part of the cylinder body (1), a sterilizing device (1603) is evenly and fixedly connected to the bottom surface of the partition plate (15), and a switching storage collection mechanism is also arranged inside the cylinder body (1); The vibrating sputum discharge mechanism comprises a base plate (21) fixedly connected to the upper inner wall of the cylinder (1); a servo motor (2101) is fixedly connected to the upper surface of the base plate (21); a synchronous wheel (22) is fixedly connected to the output shaft below the servo motor (2101); a rotating ring (23) is rotatably connected to the end of the base plate (21) away from the inner wall of the cylinder (1); a protrusion (2301) is evenly arranged on the inner ring surface of the rotating ring (23); a fixed ring (24) is fixedly connected to the outer wall of the sputum discharge tube (14) at a position corresponding to the rotating ring (23); a protrusion (2401) is evenly arranged on the outer ring surface of the fixed ring (24); a synchronous wheel (25) is fixedly connected to the outer ring surface below the rotating ring (23); a synchronous belt (26) is connected between the synchronous wheel (25) and the synchronous wheel (22).

2. The sputum suction device for ICU ventilator according to claim 1, characterized in that: The cylinder (1) and the screw cap (11) are made of transparent visible materials, and the screw cap (11) is threadably connected to the cylinder (1).

3. The sputum suction device for ICU ventilator according to claim 1, characterized in that: The portion where the sputum discharge tube (14) communicates with the butt joint tube (12) is connected by a quick connector.

4. The sputum suction device for ICU ventilator according to claim 1, characterized in that: The collecting cylinder (19) is distributed in an annular shape, and a groove block (1901) is provided at the bottom of the collecting cylinder (19). A bottom groove (1801) is provided at a position on the inner bottom surface of the switching cylinder (18) corresponding to the groove block (1901), and the bottom groove (1801) is plugged into and matched with the groove block (1901).

5. The sputum suction device for ICU ventilator according to claim 4, characterized in that: The switching cylinder (18) and the collecting cylinder (19) are made of transparent visible materials, and a handle is provided on one side above the collecting cylinder (19).

6. The sputum suction device for ICU ventilator according to claim 4, characterized in that: The slot block (1901) consists of a central disk and rectangular blocks evenly distributed on the outer annular surface of the disk.

7. The sputum suction device for ICU ventilator according to claim 1, characterized in that: The protrusion 1 (2301) and the protrusion 2 (2401) are made of elastic rubber material and are spherical in shape.

8. The sputum suction device for ICU ventilator according to claim 1, characterized in that: The switching, distributing and collecting mechanism comprises a bottom plate (31) fixedly connected to the upper inner wall of the cylinder (1), the bottom plate (31) being located directly below the base plate (21), one end of the bottom plate (31) away from the inner wall of the cylinder (1) being rotatably connected to a transmission shaft (32), the upper end of the transmission shaft (32) extending to the upper part of the bottom plate (31), the upper end of the transmission shaft (32) being provided with a pin hole (37), a transmission assembly for driving the transmission shaft (32) to rotate being provided at a position corresponding to the pin hole (37) at the center of the bottom surface of the synchronous wheel (22), the lower end of the transmission shaft (32) being fixedly connected to a main gear (33), a secondary gear ring (34) being fixedly sleeved at a position corresponding to the main gear (33) on the outer ring surface of the switching cylinder (18), the secondary gear ring (34) being meshed with the main gear (33).

9. The sputum suction device for ICU ventilator according to claim 8, characterized in that: The transmission assembly comprises an electrically controlled telescopic rod (35) fixedly connected to the center of the bottom surface of the synchronous wheel (22); a latch (36) is fixedly connected to the telescopic end below the electrically controlled telescopic rod (35); the latch (36) and the pin hole (37) are pluggable and fit together; the latch (36) is composed of a cylinder and saw teeth evenly arranged on the outer annular surface of the cylinder.

10. The sputum suction device for ICU ventilator according to claim 8, characterized in that: A self-sealing cover mechanism is provided on a side of the bottom plate (31) close to the collecting barrel (19), the self-sealing cover mechanism comprising a grooved side strip (191) fixedly connected to the upper outer wall of the collecting barrel (19), a sealing cover (192) slidably connected in the groove of the grooved side strip (191), a spring (193) connected between the outer wall of the sealing cover (192) and the groove wall of the grooved side strip (191), a positive pole magnetic sheet (194) fixedly connected to the upper surface of the sealing cover (192), and a negative pole magnetic sheet (195) fixedly connected to the side of the bottom plate (31) close to the collecting barrel (19).

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