Sputum metering collector

Abstract

The invention relates to the technical field of medical instruments, and discloses a sputum metering collector which comprises a collecting tank, a sputum suction pipe is connected to the right half portion of the upper surface of the collecting tank, a connecting assembly is connected to the left half portion of the upper surface of the collecting tank, an air guide assembly is connected to the other end of the connecting assembly, and a negative pressure pump assembly is connected to the right end of the air guide assembly. A cannula assembly is fixedly installed at the left end of the air guide assembly, a sealing assembly is arranged at the other end of the cannula assembly, a breathing cannula is fixedly installed at the top of the sealing assembly, and a monitoring assembly is clamped on the surface of the breathing cannula. The piston plate moves leftwards and pulls the sputum suction tube to move leftwards, so that the conical head extends into the air passage; when the piston plate moves to the left end of the piston cylinder, the push rod pushes the communicating piece to the right end of the mounting hole, and the left cavity communicates with the right cavity, so that the sputum suction port sucks sputum in the air passage, and the sputum is sucked into the collecting tank; therefore, the purpose of automatically sucking sputum is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically relates to a sputum metering and collecting device. Background Art

[0002] It is mainly used to extract sputum or other secretions in the trachea to prevent patients from experiencing restricted respiratory function, asphyxia, and respiratory failure. There are various types of sputum suction tubes, such as T-type closed, Y-type closed, L-type closed, etc.

[0003] Since some patients need to wear an oxygen mask or the like for oxygen supply during the treatment process. Therefore, during sputum suction, generally, the valve on the tracheal intubation is opened, and then the sputum suction tube is inserted into the tracheal intubation and extended along the tracheal intubation into the patient's airway, and then air is pumped by a pump to extract the sputum in the airway.

[0004] Since the above operations need to be performed by medical staff and cannot perform sputum suction by oneself; therefore, it is necessary for medical staff or patient family members to timely discover the sputum suction needs of patients, which is quite energy-consuming. Moreover, when the number of patients is large, medical staff need to perform sputum suction operations multiple times, which is also quite physically exhausting. Thus, further improvements can be made. Summary of the Invention

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a sputum metering and collecting device, which has the advantages of automatically performing sputum suction, etc., and solves the problems of consuming energy and physical strength by medical staff for sputum suction.

[0007] (2) Technical Solutions

[0008] To achieve the above purpose of automatically performing sputum suction, the present invention provides the following technical solutions: A sputum metering and collecting device includes a collection tank. The right half of the upper surface of the collection tank is connected with a sputum suction tube. The left half of the upper surface of the collection tank is connected with a connection component. The other end of the connection component is connected with a gas guiding component. The right end of the gas guiding component is connected with a negative pressure pump component. The left end of the gas guiding component is fixedly installed with a sleeve component. The other end of the sleeve component is provided with a sealing component. The top of the sealing component is fixedly installed with a respiratory intubation. The sleeve component is provided with a sealing component. A monitoring component is clamped on the surface of the respiratory intubation. The sputum suction tube is slidably connected through the gas guiding component, the sleeve component, and the respiratory intubation. The monitoring component and the negative pressure pump component are electrically connected to a controller.

[0009] Preferably, the collection tank includes a tank body and a tank cover, the tank body and the tank cover are threadedly connected, a partition is fixedly installed inside the tank body, the partition equally divides the tank body into left and right parts, a gap is reserved between the top of the partition and the top wall of the tank cover, and the left and right parts of the tank body communicate above the partition; a hook is fixedly installed on the left side of the tank body, the center of the top of the tank cover is connected with an air inlet pipe, a one-way valve and a first switch valve are arranged on the air inlet pipe, the one-way valve is located below the first switch valve, and the first switch valve is electrically connected to the controller.

[0010] Preferably, the connection assembly includes a first connecting pipe and a second connecting pipe connected to the left half of the upper surface of the collection tank, and a second switch valve is arranged on the second connecting pipe; the air guiding assembly includes a piston cylinder, the top end of the first connecting pipe is connected to the bottom right end of the piston cylinder, the top end of the second connecting pipe is connected to the bottom left end of the piston cylinder, a guiding pipe is fixedly penetrated through the upper half of the right end of the piston cylinder, and a plurality of diversion ports are arrayed and penetrated through the circumferential surface of the left end of the guiding pipe; the negative pressure pump assembly includes a hose connected to the right end of the guiding pipe, a third switch valve is arranged on the hose, the other end of the hose is connected to a negative pressure pump body, and the second switch valve, the third switch valve and the negative pressure pump body are all electrically connected to the controller.

[0011] Preferably, a piston plate is slidably connected in the piston cylinder, and the piston plate is slidably connected to the guiding pipe. The piston plate divides the piston cylinder into a left chamber and a right chamber. The first connecting pipe and the second connecting pipe communicate with the right chamber and the left chamber respectively. A plurality of communicating parts are arranged on the piston plate. A first spring is fixedly installed between the left end of the piston plate and the left inner wall of the piston cylinder. The sputum suction pipe is slidably penetrated through the centers of both ends of the piston cylinder, and the sputum suction pipe is fixedly penetrated through the center of the piston plate and passes through the first spring; a protection pipe is fixedly installed at the center of the right end of the piston cylinder, the right end of the protection pipe is in a horn shape, and two C-shaped buckles are fixedly installed at the rear side of the piston cylinder.

[0012] Preferably, a sliding hole and three mounting holes are penetrated through the side surface of the piston plate, and the sliding hole and the three mounting holes are arranged in a circumferential array on the piston plate. The piston plate is slidably connected to the guiding pipe through the sliding hole. Annular flanges are fixedly installed on the inner walls of both ends of the mounting hole; an annular groove two is opened on the right side of the sliding hole, and three conduction grooves are penetrated through the inner wall of the annular groove two where the piston plate is located. The mounting hole communicates with the annular groove two through the conduction groove, and the conduction groove communicates with the middle of the mounting hole. The left chamber and the right chamber communicate through the mounting hole, the conduction groove and the annular groove two; arc-shaped plates are fixedly installed on the inner walls of both ends of the piston cylinder, three push rods are fixedly installed on each arc-shaped plate, the communicating parts correspond to the mounting holes one by one, and when the piston plate slides to the end of the piston cylinder, the push rods are used to push the communicating parts to slide in the mounting holes.

[0013] Preferably, the connecting member includes guide bars fixedly installed on the inner wall of the mounting hole. Two guide bars are fixedly installed on the inner wall of each mounting hole. A sliding plate is slidably connected in each mounting hole. Two embedding grooves and two circular grooves are arrayed on the circumferential surface of the sliding plate. The sliding plate is slidably connected to the guide bar through the embedding groove. An embedding post is slidably connected to the inner wall of the circular groove. A second spring is fixedly installed between the embedding post and the inner wall of the circular groove. The free end of the embedding post is hemispherical. Two hemispherical grooves are formed on the inner walls at both ends of the mounting hole where the piston plate is located. The free end of the embedding post fits on the hemispherical groove.

[0014] Preferably, a conical head is integrally formed at the tail end of the suction tube. A suction port is formed through the tail end of the suction tube. The upper half of the conical head has a gradually increasing diameter from top to bottom, and the lower half of the conical head has a gradually decreasing diameter from top to bottom. The sleeve assembly includes a sleeve body fixedly installed at the center of the left end of the air guide assembly. Another end of the sleeve body is fixedly installed with a covering cylinder. A disinfection tube is integrally formed on the left side of the covering cylinder. A connecting band is connected to the left end of the disinfection tube. The other end of the connecting band is connected with a sealing plug for sealing the disinfection tube. A support cover is fixedly installed on the inner wall of the top end of the suction port. The inner diameter of the support cover gradually decreases from top to bottom. A guiding cover is fixedly installed on the inner wall of the lower half of the covering cylinder. A sealing tube is fixedly installed at the top end of the guiding cover. A storage hopper is fixedly installed at the top end of the sealing tube. The guiding cover, the sealing tube and the storage hopper are in a hourglass shape. The suction tube passes through the middle of the sleeve body, the guiding cover, the sealing tube, the storage hopper and the support cover. The inner diameter of the sleeve body is larger than the outer diameter of the suction tube. The inner diameter of the bottom end of the support cover is larger than the outer diameter of the sleeve body and smaller than the middle diameter of the conical head.

[0015] Preferably, the sealing assembly includes a mounting cover fixedly installed at the top end of the sleeve assembly. A cover plate is fixedly installed at the top end of the mounting cover. The breathing intubation tube is fixedly installed at the center of the top of the cover plate. An oxygen tube is integrally formed on the left side of the breathing intubation tube and slopes downward. A clamping plate is fixedly installed on the inner wall of the mounting cover. A turntable is rotatably connected to the bottom wall of the mounting cover. Six sealing sheets are arrayed between the turntable and the clamping plate. Half of each sealing sheet is triangular and the other half is rectangular. A communication hole runs through the centers of the mounting cover, the cover plate, the clamping plate and the turntable. The diameter of the communication hole is equal to the inner diameter of the top end of the sleeve assembly and the inner diameter of the breathing intubation tube. The triangular parts of the six sealing sheets are used to seal the communication hole. An annular groove one is formed on the top of the turntable. The annular groove one is regular hexagon-shaped. Six inclined grooves are arrayed on the clamping plate. A slider is fixedly installed at the bottom of each sealing sheet. A sliding column is fixedly installed at the top of each sealing sheet. The slider is slidably connected in the annular groove one. The sliding column is slidably connected in the inclined groove. A rotation driving member is arranged on the mounting cover for driving the turntable to rotate.

[0016] Preferably, the rotation driving member includes a boss fixedly installed on the circumferential surface of the turntable. An arc-shaped groove is formed through the circumferential surface of the mounting cover. The boss is slidably connected in the arc-shaped groove. A collar is sleeved outside the mounting cover. The boss is fixedly installed on the inner wall of the collar. An annular gear is fixedly installed on the inner wall of the bottom end of the collar. A motor is fixedly installed on the sleeve assembly. A driving gear is fixedly installed at the output end of the motor. The driving gear meshes with the annular gear. The motor is electrically connected to the controller.

[0017] Preferably, the monitoring component includes an arch-shaped plate. Hoop fasteners are fixedly installed at both ends of the arch-shaped plate. The two hoop fasteners are attached to the breathing tube. The free ends of the two hoop fasteners are connected by bolts. A mounting seat is slidably connected inside the arch-shaped plate. A third spring is fixedly installed between the mounting seat and the inner wall of the right end of the arch-shaped plate. A pickup is fixedly installed on the mounting seat. The mounting seat is attached to the breathing tube. The pickup is electrically connected to the controller.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a sputum metering and collecting device, which has the following beneficial effects:

[0020] 1. For this sputum metering and collecting device, the controller controls the start of the negative pressure pump body and the opening of the third switch valve, and at the same time, the second switch valve and the first switch valve are closed. Thus, the left chamber inside the piston cylinder is suctioned through the guiding tube and the diversion port, and at the same time, the air inside the sleeve body is also pumped out. Since the left chamber is in a negative pressure state, the piston plate is driven to move leftward, and the sputum suction tube is pulled to move leftward, causing the sputum suction tube to slide relative to the sleeve body, the sealing component, and the breathing tube, and the conical head extends into the airway. When the piston plate moves to the left end of the piston cylinder, the push rod pushes the connecting member to the right end of the mounting hole, and the left chamber and the right chamber are communicated. Thus, the air inside the collecting tank can pass through the first connecting tube and enter the right chamber, and then be discharged through the left chamber and the guiding tube, making the inside of the collecting tank in a negative pressure state. Thereby, the sputum suction port suctions the sputum in the airway and pumps the sputum into the collecting tank, thus achieving the purpose of automatically sucking sputum.

[0021] 2. After sucking for a certain period of time, the sputum is drawn out. Then, the controller starts the motor to rotate the turntable, and the sealing piece no longer clamps the suction tube. At this time, the piston plate has a tendency to move to the right under the elastic action of Spring 1. Then, by closing Switch Valve 3, the negative pressure pump body stops sucking. Switch Valve 1 and Switch Valve 2 are opened, and the outside air can enter the inside of the collection tank, increasing the air pressure inside the left and right chambers of the piston cylinder. As a result, the piston plate moves to the right under the elastic action of Spring 1, pulling the suction tube out of the airway by a certain distance. Then, by starting the motor again, the sealing piece clamps the suction tube again, keeping the conical head in the current position. Switch Valve 1 and Switch Valve 2 are closed again, and Switch Valve 3 is opened. The negative pressure pump body starts sucking air again. The above operations can be repeated multiple times to intermittently pull the suction tube in the airway, ensuring the suction effect of the sputum in the airway until the suction tube is completely pulled out of the airway and the conical head is stored in the support cover. Thus, the purpose of automatically pulling the suction tube to intermittently move in the airway and improving the sputum suction effect is achieved. Description of the Drawings

[0022] Figure 1 Schematic perspective view of a sputum metering and collecting device proposed by the present invention;

[0023] Figure 2 Schematic perspective view of the collection tank of a sputum metering and collecting device proposed by the present invention;

[0024] Figure 3 Schematic perspective view of the air guiding assembly of a sputum metering and collecting device proposed by the present invention;

[0025] Figure 4 Schematic perspective sectional view of the air guiding assembly of a sputum metering and collecting device proposed by the present invention;

[0026] Figure 5 Schematic perspective exploded view of the air guiding assembly of a sputum metering and collecting device proposed by the present invention;

[0027] Figure 6 Schematic perspective view of the piston plate of a sputum metering and collecting device proposed by the present invention;

[0028] Figure 7 Schematic perspective sectional view of the piston plate of a sputum metering and collecting device proposed by the present invention;

[0029] Figure 8 Schematic perspective view of the connecting member of a sputum metering and collecting device proposed by the present invention;

[0030] Figure 9 Schematic perspective sectional view of the sleeve assembly of a sputum metering and collecting device proposed by the present invention;

[0031] Figure 10 Schematic three-dimensional structure diagram of the sleeve assembly, sealing assembly and breathing tube of a sputum measurement collector proposed by the present invention;

[0032] Figure 11 Schematic three-dimensional structure diagram of the sealing assembly of a sputum measurement collector proposed by the present invention;

[0033] Figure 12 Schematic three-dimensional exploded structure diagram of the sealing assembly of a sputum measurement collector proposed by the present invention;

[0034] Figure 13 Schematic three-dimensional structure diagram of the monitoring assembly of a sputum measurement collector proposed by the present invention.

[0035] In the figure: 100, collection tank; 200, sputum suction tube; 300, connection assembly; 400, air guiding assembly; 500, negative pressure pump assembly; 600, sleeve assembly; 700, sealing assembly; 800, breathing intubation; 900, monitoring assembly;

[0036] 101, tank body; 102, tank cover; 103, partition board; 104, hook; 105, air inlet pipe; 106, one-way valve; 107, switch valve one; 201, conical head; 202, sputum suction port; 301, connecting pipe one; 302, connecting pipe two; 303, switch valve two;

[0037] 401, piston cylinder; 402, guiding tube; 403, diversion port; 404, piston plate; 405, connecting member; 406, spring one; 407, protection tube; 408, C-shaped buckle; 409, arc plate; 410, push rod; 4041, sliding hole; 4042, mounting hole; 4043, annular flange; 4044, annular groove two; 4045, conduction groove; 4051, guiding strip; 4052, sliding piece; 4053, embedding groove; 4054, circular groove; 4055, embedding post; 4056, spring two; 4057, hemispherical groove;

[0038] 501, hose; 502, switch valve three; 503, negative pressure pump body; 601, sleeve body; 602, covering cylinder; 603, disinfection tube; 604, connecting band; 605, sealing plug; 606, supporting cover; 607, guiding cover; 608, sealing tube; 609, storage hopper;

[0039] 701. Mounting cover; 702. Cover plate; 703. Clamping plate; 704. Turntable; 705. Sealing piece; 706. First annular groove; 707. Inclined groove; 708. Boss; 709. Arc groove; 710. Collar; 711. Annular gear; 712. Motor; 713. Driving gear; 7051. Slide block; 7052. Slide post; 801. Oxygen tube; 901. Arch plate; 902. Hoop; 903. Mounting seat; 904. Third spring; 905. Pickup. Detailed implementation manner

[0040] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0041] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figure 1 , a sputum measurement and collection device, including a collection tank 100. The right half of the upper surface of the collection tank 100 is connected with a sputum suction tube 200. The left half of the upper surface of the collection tank 100 is connected with a connection assembly 300. The other end of the connection assembly 300 is connected with a gas guiding assembly 400. The right end of the gas guiding assembly 400 is connected with a negative pressure pump assembly 500. The left end of the gas guiding assembly 400 is fixedly installed with a sleeve assembly 600. The other end of the sleeve assembly 600 is provided with a sealing assembly 700. The top of the sealing assembly 700 is fixedly installed with a breathing intubation 800. The sleeve assembly 600 is provided with a sealing assembly 700. The surface of the breathing intubation 800 is clamped with a monitoring assembly 900. The sputum suction tube 200 is slidably connected through the gas guiding assembly 400, the sleeve assembly 600 and the breathing intubation 800. The monitoring assembly 900 and the negative pressure pump assembly 500 are electrically connected to a controller. By monitoring the air inside the breathing intubation 800 through the monitoring assembly 900, when there is a large amount of sputum in the patient's airway, it will cause the patient to cough or make abnormal breathing sounds. When the monitoring assembly 900 monitors a cough sound with a large decibel value and an abnormal breathing sound with a long duration, the monitoring assembly 900 sends a signal to the controller, and the negative pressure pump assembly 500 is controlled by the controller to start for sputum suction.

[0043] Please refer to Figure 2 , the collection tank 100 includes a tank body 101 and a tank cover 102. The tank body 101 and the tank cover 102 are threadedly connected. A partition 103 is fixedly installed inside the tank body 101. The partition 103 equally divides the tank body 101 into two parts on the left and right. There is a gap reserved between the top of the partition 103 and the top wall of the tank cover 102. The two parts on the left and right of the tank body 101 communicate above the partition 103. The sputum suctioned out by the sputum suction tube 200 and the waste water for cleaning the sputum suction tube 200 are stored in the right half of the tank body 101. Through the separation of the partition 103, when sputum enters the inside of the tank body 101, it is prevented from splashing into the connection assembly 300. A capacity scale is provided on the surface of the tank body 101 to display the amount of sputum stored in the right half of the tank body 101.

[0044] A hook 104 is fixedly installed on the left side of the tank body 101. The tank body 101 can be hung on the guardrail of the hospital bed through the hook 104. A gas inlet pipe 105 is connected to the center of the top of the tank cover 102. A one-way valve 106 and a first switch valve 107 are provided on the gas inlet pipe 105. The one-way valve 106 is located below the first switch valve 107. The first switch valve 107 is electrically connected to the controller. When the negative pressure pump assembly 500 sucks the inside of the collection tank 100 into a negative pressure state, the controller can control the first switch valve 107 to open, so that external air enters the inside of the collection tank 100, keeping the inside of the collection tank 100 at normal pressure.

[0045] Please refer to Figure 3 , the connection assembly 300 includes a first connecting pipe 301 and a second connecting pipe 302 connected to the left half of the upper surface of the collection tank 100. A second switch valve 303 is provided on the second connecting pipe 302. The air guiding assembly 400 includes a piston cylinder 401. The top end of the first connecting pipe 301 is connected to the bottom right end of the piston cylinder 401. The top end of the second connecting pipe 302 is connected to the bottom left end of the piston cylinder 401. A guiding pipe 402 is fixedly penetrated through the upper half of the right end of the piston cylinder 401. The guiding pipe 402 is parallel to the axis of the piston cylinder 401. A plurality of diversion openings 403 are arrayed and penetrated on the circumferential surface of the left end of the guiding pipe 402. The guiding pipe 402 is connected to the negative pressure pump assembly 500, so that the inside of the piston cylinder 401 is sucked through the negative pressure pump assembly 500 and the guiding pipe 402, making the inside of the piston cylinder 401 in a negative pressure state. The negative pressure pump assembly 500 includes a hose 501 connected to the right end of the guiding pipe 402. A third switch valve 502 is provided on the hose 501. The other end of the hose 501 is connected to a negative pressure pump body 503. The second switch valve 303, the third switch valve 502 and the negative pressure pump body 503 are all electrically connected to the controller. When the controller controls the negative pressure pump body 503 to start and the third switch valve 502 to open, the inside of the piston cylinder 401 is sucked. The inside of the collection tank 100 can be sucked through the first connecting pipe 301 or the second connecting pipe 302.

[0046] Please refer to Figures 3 - 8, a piston plate 404 is slidably connected inside a piston cylinder 401. A guide pipe 402 penetrates through the piston plate 404, and the piston plate 404 is slidably connected to the guide pipe 402, so as to prevent the piston plate 404 from rotating inside the piston cylinder 401 when the piston plate 404 slides inside the piston cylinder 401.

[0047] The piston plate 404 divides the piston cylinder 401 into a left chamber and a right chamber. A first connecting pipe 301 and a second connecting pipe 302 are respectively communicated with the right chamber and the left chamber. A plurality of communicating members 405 are arranged on the piston plate 404, and the communication or sealing between the left chamber and the right chamber is controlled through the communicating members 405. A suction tube 200 is slidably connected through the centers of both ends of the piston cylinder 401, and the suction tube 200 is fixedly penetrated through the center of the piston plate 404 and passes through a first spring 406. A first spring 406 is fixedly installed between the left end of the piston plate 404 and the left inner wall of the piston cylinder 401. Due to the elasticity of the first spring 406, the piston plate 404 has a tendency to move to the right.

[0048] When the guide pipe 402 sucks the air inside the left chamber, the communication between the left chamber and the right chamber is sealed through the communicating member 405 and closed through a second switch valve 303, so that the left chamber is in a negative pressure state, the piston plate 404 moves to the left, and the first spring 406 is squeezed and contracted. Thus, the piston plate 404 pulls the suction tube 200 to the left, and the suction tube 200 is inserted into the airway. When the piston plate 404 moves to the inside of the left end of the piston cylinder 401, the left chamber and the right chamber can be communicated through the communicating member 405, so that the air inside the collection tank 100 passes through the first connecting pipe 301 and enters the right chamber, and then is sucked out from the left chamber. The inside of the collection tank 100 is in a negative pressure state, and the suction tube 200 can suck the sputum in the airway into the collection tank 100.

[0049] A protection pipe 407 is fixedly installed at the center of the right end of the piston cylinder 401. The right end of the protection pipe 407 is in a flared shape, reducing the friction between the suction tube 200 and the piston cylinder 401, and preventing the suction tube 200 from getting stuck at the right end of the piston cylinder 401 when the piston plate 404 pulls the suction tube 200. Two C-shaped buckles 408 are fixedly installed at the rear side of the piston cylinder 401, and the piston cylinder 401 can be installed on the guardrail of the hospital bed through the C-shaped buckles 408.

[0050] Please refer to Figures 4 - 7 , a sliding hole 4041 and three mounting holes 4042 are formed through the side surface of the piston plate 404. The sliding hole 4041 and the three mounting holes 4042 are arranged in a circumferential array on the piston plate 404, and the piston plate 404 is slidably connected to the guide pipe 402 through the sliding hole 4041.

[0051] Circular flanges 4043 are fixedly installed on the inner walls at both ends of the mounting hole 4042. An annular groove two 4044 is formed on the right side of the sliding hole 4041. Three conduction grooves 4045 are formed through the inner wall of the annular groove two 4044 where the piston plate 404 is located. The mounting hole 4042 communicates with the annular groove two 4044 through the conduction grooves 4045, and the conduction grooves 4045 communicate with the middle of the mounting hole 4042. The left chamber and the right chamber communicate through the mounting hole 4042, the conduction grooves 4045, and the annular groove two 4044.

[0052] Arc-shaped plates 409 are fixedly installed on the inner walls at both ends of the piston cylinder 401. Three push rods 410 are fixedly installed on each arc-shaped plate 409. The connecting members 405 correspond to the mounting holes 4042 one by one. The connecting members 405 slide inside the mounting holes 4042. The circular flanges 4043 are used to block the connecting members 405 to prevent the connecting members 405 from disengaging from the mounting holes 4042. When the piston plate 404 slides to the end of the piston cylinder 401, the push rods 410 are used to push the connecting members 405 to slide inside the mounting holes 4042. When the connecting member 405 slides to the left end of the mounting hole 4042, the left end of the mounting hole 4042 is sealed, so that the left chamber and the right chamber are in a non-communicating state; when the connecting member 405 slides to the right end of the mounting hole 4042, the left chamber and the right chamber communicate through the mounting hole 4042, the conduction grooves 4045, and the annular groove two 4044.

[0053] Please refer to Figures 6 - 8 , the connecting member 405 includes guide bars 4051 fixedly installed on the inner wall of the mounting hole 4042. Two guide bars 4051 are fixedly installed on the inner wall of each mounting hole 4042. A sliding piece 4052 is slidably connected in each mounting hole 4042. Two embedding grooves 4053 and two circular grooves 4054 are arrayed on the circumferential surface of the sliding piece 4052. The sliding piece 4052 is slidably connected to the guide bars 4051 through the embedding grooves 4053. Thus, when the sliding piece 4052 moves in the mounting hole 4042, the sliding piece 4052 is prevented from rotating.

[0054] An embedding post 4055 is slidably connected to the inner wall of the circular groove 4054. A second spring 4056 is fixedly installed between the embedding post 4055 and the inner wall of the circular groove 4054; the free end of the embedding post 4055 is hemispherical. Two hemispherical grooves 4057 are formed on the inner walls at both ends of the mounting hole 4042 where the piston plate 404 is located. The free end of the embedding post 4055 fits on the hemispherical groove 4057. Thus, when the sliding piece 4052 slides to the end of the mounting hole 4042, under the elastic action of the second spring 4056, the embedding post 4055 fits at the hemispherical groove 4057, so that the sliding piece 4052 is stably held at the end of the mounting hole 4042. The sliding resistance of the sliding piece 4052 in the mounting hole 4042 is increased to prevent the sliding piece 4052 from accidentally sliding.

[0055] Please refer to Figure 9, a conical head 201 is integrally formed at the end of the sputum suction tube 200, and a sputum suction port 202 is formed through the end of the sputum suction tube 200. The upper half of the conical head 201 has a gradually increasing diameter from top to bottom, and the lower half of the conical head 201 has a gradually decreasing diameter from top to bottom. Arc chamfers are provided at the tip and the middle edge of the conical head 201. When the conical head 201 moves in the airway, it can scrape the sputum to a certain extent. Coupled with the suction effect of the sputum suction port 202, the sputum is sucked into the interior of the sputum suction tube 200.

[0056] The sleeve assembly 600 includes a sleeve body 601 fixedly installed at the center of the left end of the air guide assembly 400. Another end of the sleeve body 601 is fixedly installed with a covering cylinder 602. A disinfection tube 603 is integrally formed on the left side of the covering cylinder 602. A connecting band 604 is connected to the left end of the disinfection tube 603, and the other end of the connecting band 604 is connected to a sealing plug 605, and the sealing plug 605 is used to seal the disinfection tube 603.

[0057] A support cover 606 is fixedly installed on the inner wall of the top end of the sputum suction port 202, and the inner diameter of the support cover 606 gradually decreases from top to bottom. A guide cover 607 is fixedly installed on the inner wall of the lower half of the covering cylinder 602. A sealing tube 608 is fixedly installed at the top end of the guide cover 607, and a storage hopper 609 is fixedly installed at the top end of the sealing tube 608. The guide cover 607, the sealing tube 608 and the storage hopper 609 are in a hourglass shape. The disinfection tube 603 is located between the support cover 606 and the storage hopper 609.

[0058] The sputum suction tube 200 passes through the middle of the sleeve body 601, the guide cover 607, the sealing tube 608, the storage hopper 609 and the support cover 606. The inner diameter of the sleeve body 601 is larger than the outer diameter of the sputum suction tube 200. The inner diameter of the bottom end of the support cover 606 is larger than the outer diameter of the sleeve body 601 and smaller than the middle diameter of the conical head 201. Thus, the inside of the sealing tube 608 is sealed through the sputum suction tube 200. When sucking the left chamber of the piston cylinder 401, the inside of the sleeve body 601 and the guide cover 607 are both in a negative pressure state. Moreover, after the sputum suction of the sputum suction tube 200 is completed, the conical head 201 can be stored in the support cover 606, and when the sputum suction port 202 slides relative to the sealing tube 608, the secretions attached to the outer wall of the sputum suction tube 200 can be intercepted inside the storage hopper 609. When cleaning the sputum suction tube 200, the disinfectant can be injected from the disinfection tube 603 between the support cover 606 and the storage hopper 609 through a syringe. The disinfectant and the secretions intercepted inside the storage hopper 609 can pass through the sputum suction port 202 into the interior of the sputum suction tube 200, and then pass through the sputum suction tube 200 into the collection tank 100.

[0059] Please refer to Figures 10 - 12, the sealing assembly 700 includes a mounting cover 701 fixedly installed at the top end of the sleeve assembly 600. A cover plate 702 is fixedly installed at the top end of the mounting cover 701. A breathing intubation tube 800 is fixedly installed at the center of the top of the cover plate 702. An oxygen tube 801 is integrally formed on the left side of the breathing intubation tube 800, and the oxygen tube 801 is connected to a ventilator. The oxygen tube 801 is inclined downward to prevent the suction tube 200 from entering the interior of the oxygen tube 801 when sliding inside the oxygen tube 801.

[0060] A clamping plate 703 is fixedly installed on the inner wall of the mounting cover 701. A turntable 704 is rotatably connected to the bottom wall of the mounting cover 701. Six sealing sheets 705 are arranged in an array between the turntable 704 and the clamping plate 703. Half of each sealing sheet 705 is triangular and the other half is rectangular. A communication hole is formed through the centers of the mounting cover 701, the cover plate 702, the clamping plate 703, and the turntable 704. The diameter of the communication hole is equal to the inner diameter of the top end of the sleeve assembly 600 and the inner diameter of the breathing intubation tube 800. The triangular portions of the six sealing sheets 705 are used to seal the communication hole. After the communication hole is sealed by the sealing sheets 705, the support cover 606 and the sealing sheets 705 block the conical head 201 to prevent the conical head 201 from moving a long distance inside the covering cylinder 602.

[0061] An annular groove one 706 is formed at the top of the turntable 704. The annular groove one 706 is regular hexagon-shaped. Six inclined grooves 707 are formed in an array on the clamping plate 703. A slider 7051 is fixedly installed at the bottom of each sealing sheet 705, and a sliding column 7052 is fixedly installed at the top of each sealing sheet 705. The slider 7051 is slidably connected in the annular groove one 706, and the sliding column 7052 is slidably connected in the inclined groove 707. The sealing sheet 705 is guided through the cooperation of the sliding column 7052 and the inclined groove 707. A rotation driving member is arranged on the mounting cover 701, and the rotation driving member is used to drive the turntable 704 to rotate.

[0062] Thus, when the turntable 704 rotates, the turntable 704 squeezes and pushes the slider 7051 at the side wall of the annular groove one 706, so that the sealing sheet 705 deflects following the turntable 704 and can slide relative to the turntable 704. At the same time, the inclined groove 707 guides the moving path of the sealing sheet 705. Thus, the sealing sheet 705 deflects and moves at the same time to seal or open the communication hole. In addition, after the suction tube 200 is inserted into the patient's airway, the six sealing sheets 705 can be gathered together to clamp and limit the suction tube 200, so that the conical head 201 is maintained in the airway for a certain period of time to ensure the suction time.

[0063] The rotation driving member includes a boss 708 fixedly installed on the circumferential surface of the turntable 704. An arc-shaped groove 709 is formed through the circumferential surface of the mounting cover 701. The boss 708 is slidably connected in the arc-shaped groove 709. A collar 710 is sleeved outside the mounting cover 701. The boss 708 is fixedly installed on the inner wall of the collar 710. When the collar 710 rotates relative to the mounting cover 701, the turntable 704 can be driven to rotate through the boss 708. At the same time, the collar 710 keeps the arc-shaped groove 709 sealed. A ring gear 711 is fixedly installed on the inner wall at the bottom end of the collar 710. A motor 712 is fixedly installed on the sleeve assembly 600. A driving gear 713 is fixedly installed at the output end of the motor 712. The driving gear 713 meshes with the ring gear 711. The motor 712 is electrically connected to the controller. By driving the driving gear 713 to rotate through the motor 712, the ring gear 711 and the collar 710 can be driven to rotate. With the connection function of the boss 708, the turntable 704 is driven to rotate.

[0064] Please refer to Figure 13 , the monitoring assembly 900 includes an arch-shaped plate 901. Hoop 902 is fixedly installed at both ends of the arch-shaped plate 901. The two hoops 902 are attached to the breathing tube 800. The free ends of the two hoops 902 are connected by bolts. A mounting seat 903 is slidably connected inside the arch-shaped plate 901. A third spring 904 is fixedly installed between the mounting seat 903 and the inner wall of the right end of the arch-shaped plate 901. A pickup 905 is fixedly installed on the mounting seat 903. The mounting seat 903 is attached to the breathing tube 800. The pickup 905 is electrically connected to the controller. Through the elasticity of the third spring 904, the mounting seat 903 is closely attached to the breathing tube 800, so that the pickup 905 can monitor the sound inside the breathing tube 800 in real time and transmit the signal to the controller. When the patient makes abnormal sounds such as coughing or "gurgling" sounds in breathing due to excessive airway sputum for ten seconds, automatic sputum suction can be triggered.

[0065] During use, S1: The sound inside the breathing tube 800 is monitored in real time through the pickup 905. When an abnormal sound is detected, the sound signal is transmitted to the controller; the controller first controls the motor 712 to start, drives the driving gear 713 to rotate, drives the ring gear 711 and the collar 710 to rotate, and with the connection function of the boss 708, drives the turntable 704 to rotate, so as to drive the sealing piece 705 to deflect and move while opening the communication hole;

[0066] S2. Then, the controller controls the start of the negative pressure pump body 503 and the opening of the third switching valve 502. At the same time, the second switching valve 303 and the first switching valve 107 are closed. Thus, the left chamber inside the piston cylinder 401 is suctioned through the guiding tube 402 and the diversion port 403. Meanwhile, the air inside the sleeve body 601 is also extracted. Since the left chamber is in a negative pressure state, the piston plate 404 is driven to move leftward, and the suction tube 200 is pulled leftward, causing the suction tube 200 to slide relative to the sleeve body 601, the sealing assembly 700, and the breathing tube 800, so that the conical head 201 extends into the airway.

[0067] S3. When the piston plate 404 moves to the left end of the piston cylinder 401, the push rod 410 pushes the connecting member 405 to the right end of the mounting hole 4042, and the left chamber and the right chamber are connected. Thus, the air inside the collection tank 100 can pass through the first connecting tube 301 and enter the right chamber, and then be discharged through the left chamber and the guiding tube 402, making the inside of the collection tank 100 in a negative pressure state. Thereby, the sputum suction port 202 suctions the sputum in the airway and sucks the sputum into the collection tank 100.

[0068] S4. When the suction tube 200 suctions sputum, a sound will be emitted. The pickup 905 monitors the sound again and transmits the signal to the controller. The controller starts the motor 712 again. The motor 712 drives the driving gear 713 to rotate in the reverse direction. Thus, the six sealing pieces 705 move in the reverse direction to clamp the suction tube 200, keeping the conical head 201 in the airway.

[0069] S5. After suctioning for a certain period of time, the sputum is extracted. Then, the controller starts the motor 712 to make the turntable 704 rotate, and the sealing piece 705 no longer clamps the suction tube 200. At this time, the piston plate 404 has a tendency to move rightward under the elastic action of the first spring 406. Then, the third switching valve 502 is closed, the negative pressure pump body 503 stops suctioning, the first switching valve 107 and the second switching valve 303 are opened, and the outside air can enter the inside of the collection tank 100, increasing the air pressure inside the left chamber and the right chamber of the piston cylinder 401. Thereby, the piston plate 404 moves rightward under the elastic action of the first spring 406, pulling the suction tube 200 out of the airway by a certain distance. Then, the motor 712 is started again, the sealing piece 705 clamps the suction tube 200 again, keeping the conical head 201 in the current position. The first switching valve 107 and the second switching valve 303 are closed again, the third switching valve 502 is opened, and the negative pressure pump body 503 starts to suction air again. The above operations can be repeated multiple times to intermittently pull the suction tube 200 in the airway, ensuring the suction effect on the sputum in the airway until the suction tube 200 is completely pulled out of the airway and the conical head 201 is stored in the support cover 606.

[0070] S6. When disinfecting the sputum suction tube 200, inject the disinfectant liquid between the support cover 606 and the storage hopper 609 through a syringe. Open the switch valve three 502 and start the negative pressure pump body 503. At the same time, open the switch valve two 303. The air in the collection tank 100 can be pumped through the second connecting pipe 302 and the left chamber of the piston cylinder 401, so that the sputum suction port 202 sucks the disinfectant liquid into the interior of the collection tank 100. At the same time, the secretions intercepted by the storage hopper 609 enter the sputum suction tube 200 along with the disinfectant liquid. When the disinfectant liquid passes through the interior of the sputum suction tube 200, it disinfects the sputum suction tube 200.

[0071] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sputum metering collector, comprising a collecting tank (100), characterized in that: The right half of the upper surface of the collection tank (100) is connected to a sputum suction tube (200), the left half of the upper surface of the collection tank (100) is connected to a connection assembly (300), the other end of the connection assembly (300) is connected to an air guide assembly (400), the right end of the air guide assembly (400) is connected to a negative pressure pump assembly (500), the left end of the air guide assembly (400) is fixedly mounted with a sleeve assembly (600), and the other end of the sleeve assembly (600) is provided with a sealing assembly ( 700), a breathing tube (800) is fixedly mounted on the top of the sealing component (700), a sealing component (700) is arranged on the sleeve component (600), a monitoring component (900) is clamped on the surface of the breathing tube (800), the sputum suction tube (200) is slidably connected through the air guide component (400), the sleeve component (600) and the breathing tube (800), and the monitoring component (900) and the negative pressure pump component (500) are electrically connected to a controller.

2. The sputum metering collector according to claim 1, characterized in that: The collecting tank (100) comprises a tank body (101) and a tank cover (102), wherein the tank body (101) and the tank cover (102) are threadedly connected, a partition (103) is fixedly installed inside the tank body (101), and the partition (103) equally divides the tank body (101) into two left and right parts, a gap is reserved between the top of the partition (103) and the top wall of the tank cover (102), and the left and right parts of the tank body (101) are connected above the partition (103); A hook (104) is fixedly installed on the left side of the tank body (101), and an air intake pipe (105) is connected to the center of the top of the tank cover (102). A one-way valve (106) and a switch valve (107) are arranged on the air intake pipe (105). The one-way valve (106) is located below the switch valve (107), and the switch valve (107) is electrically connected to a controller.

3. The sputum metering collector according to claim 1, characterized in that: The connection assembly (300) comprises a connection pipe 1 (301) and a connection pipe (302) connected to the left half of the upper surface of the collection tank (100); a switch valve 2 (303) is provided on the connection pipe (302); The air guide assembly (400) comprises a piston cylinder (401), the top end of the connecting pipe (301) is connected to the bottom of the right end of the piston cylinder (401), the top end of the connecting pipe (302) is connected to the bottom of the left end of the piston cylinder (401), a guide pipe (402) is fixedly passed through the upper half of the right end of the piston cylinder (401), and a flow guide port (403) is opened in an array on the circumferential surface of the left end of the guide pipe (402); The negative pressure pump assembly (500) includes a hose (501) connected to the right end of the guide tube (402), a switch valve three (502) is provided on the hose (501), and the other end of the hose (501) is connected to the negative pressure pump body (503), and the switch valve (303), the switch valve three (502) and the negative pressure pump body (503) are all electrically connected to the controller.

4. The sputum metering collector according to claim 3, characterized in that: A piston plate (404) is slidably connected inside the piston cylinder (401), and the piston plate (404) is slidably connected to the guide tube (402). The piston plate (404) divides the piston cylinder (401) into a left chamber and a right chamber. The connecting tube 1 (301) and the connecting tube 2 (302) are respectively connected to the right chamber and the left chamber. A plurality of connecting pieces (405) are provided on the piston plate (404). A spring 1 (406) is fixedly installed between the left end of the piston plate (404) and the left inner wall of the piston cylinder (401). The sputum suction tube (200) penetrates and is slidably connected to the center of both ends of the piston cylinder (401). The sputum suction tube (200) penetrates and is fixed at the center of the piston plate (404) and passes through the spring 1 (406). A protection tube (407) is fixedly installed at the center of the right end of the piston cylinder (401), and the right end of the protection tube (407) is trumpet-shaped. Two C-shaped buckles (408) are fixedly installed on the rear side of the piston cylinder (401).

5. The sputum metering collector according to claim 4, characterized in that: A sliding hole (4041) and three mounting holes (4042) are formed through the side of the piston plate (404); the sliding hole (4041) and the three mounting holes (4042) are arranged on the piston plate (404) along a circumferential array; the piston plate (404) is slidably connected to the guide tube (402) through the sliding hole (4041); and annular flanges (4043) are fixedly mounted on the inner walls of both ends of the mounting hole (4042); An annular groove (4044) is provided on the right side of the sliding hole (4041); three conducting grooves (4045) are provided through the inner wall of the second annular groove (4044) of the piston plate (404); the mounting hole (4042) is connected to the annular groove (4044) through the conducting groove (4045); the conducting groove (4045) is connected to the middle part of the mounting hole (4042); the left chamber is connected to the right chamber through the mounting hole (4042), the conducting groove (4045) and the annular groove (4044); Arc plates (409) are fixedly mounted on the inner walls at both ends of the piston cylinder (401), and three push rods (410) are fixedly mounted on each of the arc plates (409). The connecting piece (405) corresponds to the mounting hole (4042) one by one. When the piston plate (404) slides to the end of the piston cylinder (401), the push rod (410) is used to push the connecting piece (405) to slide in the mounting hole (4042).

6. The sputum metering collector according to claim 5, characterized in that: The connecting member (405) comprises a guide bar (4051) fixedly mounted on the inner wall of the mounting hole (4042), two guide bars (4051) being fixedly mounted on the inner wall of each mounting hole (4042), a sliding plate (4052) being slidably connected in each mounting hole (4042), two embedded grooves (4053) and two circular grooves (4054) being arranged in an array on the circumferential surface of the sliding plate (4052), the sliding plate (4052) being slidably connected to the guide bar (4051) via the embedded groove (4053), an embedded column (4055) being slidably connected to the inner wall of the circular groove (4054), and a spring (4056) being fixedly mounted between the embedded column (4055) and the inner wall of the circular groove (4054); The free end of the embedded column (4055) is hemispherical, and two hemispherical grooves (4057) are provided on the inner walls at both ends of the mounting hole (4042) of the piston plate (404), and the free end of the embedded column (4055) fits in the hemispherical grooves (4057).

7. The sputum metering collector according to claim 1, characterized in that: The tail end of the sputum suction tube (200) is integrally formed with a conical head (201), and a sputum suction port (202) is provided through the tail end of the sputum suction tube (200); The diameter of the upper half of the conical head (201) gradually increases from top to bottom, and the diameter of the lower half of the conical head (201) gradually decreases from top to bottom; The sleeve assembly (600) comprises a sleeve body (601) fixedly mounted at the center of the left end of the air guide assembly (400); a covering tube (602) is fixedly mounted on the other end of the sleeve body (601); a disinfection tube (603) is integrally formed on the left side of the covering tube (602); a connecting belt (604) is connected to the left end of the disinfection tube (603); a sealing plug (605) is connected to the other end of the connecting belt (604); and the sealing plug (605) is used to seal the disinfection tube (603); A support cover (606) is fixedly mounted on the inner wall of the top end of the sputum suction tube (202), and the inner diameter of the support cover (606) gradually decreases from top to bottom. A guide cover (607) is fixedly mounted on the inner wall of the lower half of the coating tube (602), and a sealing tube (608) is fixedly mounted on the top end of the guide cover (607). A storage bucket (609) is fixedly mounted on the top end of the sealing tube (608). The guide cover (607), the sealing tube (608) and the storage bucket (609) are in the shape of an hourglass. The sputum suction tube (200) passes through the middle of the sleeve body (601), the guide cover (607), the sealing tube (608), the storage bucket (609) and the supporting cover (606); the inner diameter of the sleeve body (601) is larger than the outer diameter of the sputum suction tube (200); the inner diameter of the bottom end of the supporting cover (606) is larger than the outer diameter of the sleeve body (601) and smaller than the middle diameter of the conical head (201).

8. The sputum metering collector according to claim 1, characterized in that: The sealing assembly (700) comprises a mounting cover (701) fixedly mounted on the top of the sleeve assembly (600), a cover plate (702) fixedly mounted on the top of the mounting cover (701), the breathing cannula (800) fixedly mounted at the top center of the cover plate (702), an oxygen tube (801) integrally formed on the left side of the breathing cannula (800), and the oxygen tube (801) tilts downward; A clamping plate (703) is fixedly mounted on the inner wall of the mounting cover (701), a turntable (704) is rotatably connected to the bottom wall of the mounting cover (701), six sealing sheets (705) are arranged in an array between the turntable (704) and the clamping plate (703), half of the sealing sheet (705) is triangular and the other half is rectangular, a connecting hole is formed through the center of the mounting cover (701), the cover plate (702), the clamping plate (703) and the turntable (704), the aperture of the connecting hole is equal to the inner diameter of the top end of the sleeve assembly (600) and the inner diameter of the breathing tube (800), and the triangular parts of the six sealing sheets (705) are used to seal the connecting hole; The top of the rotating disk (704) is provided with an annular groove (706) in a regular hexagonal shape. The clamping plate (703) is provided with six inclined grooves (707) in an array. A slider (7051) is fixedly installed at the bottom of each sealing sheet (705). A slide column (7052) is fixedly installed at the top of each sealing sheet (705). The slider (7051) is slidably connected in the annular groove (706), and the slide column (7052) is slidably connected in the inclined groove (707). The mounting cover (701) is provided with a rotation driving member, and the rotation driving member is used to drive the rotating disk (704) to rotate.

9. The sputum metering collector according to claim 8, characterized in that: The rotating driving member comprises a boss (708) fixedly mounted on the circumferential surface of the rotating disk (704); an arc-shaped groove (709) is formed on the circumferential surface of the mounting cover (701); the boss (708) is slidably connected in the arc-shaped groove (709); a collar (710) is sleeved on the outer side of the mounting cover (701); the boss (708) is fixedly mounted on the inner wall of the collar (710); a ring gear (711) is fixedly mounted on the inner wall of the bottom end of the collar (710); a motor (712) is fixedly mounted on the sleeve assembly (600); a driving gear (713) is fixedly mounted on the output end of the motor (712); the driving gear (713) is meshed with the ring gear (711); and the motor (712) is electrically connected to a controller.

10. The sputum metering collector according to claim 1, characterized in that: The monitoring assembly (900) comprises an arch plate (901), both ends of which are fixedly mounted with clamps (902), the two clamps (902) being fitted on the breathing tube (800), the free ends of the two clamps (902) being connected by bolts, a mounting seat (903) being slidably connected inside the arch plate (901), a spring three (904) being fixedly mounted between the mounting seat (903) and the inner wall of the right end of the arch plate (901), a microphone (905) being fixedly mounted on the mounting seat (903), the mounting seat (903) being fitted on the breathing tube (800), and the microphone (905) being electrically connected to a controller.

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