Intelligent anti-reflux and automatic emptying system for condensate water of breathing machine

Abstract

The invention relates to the technical field of breathing machines, in particular to an intelligent backflow prevention and automatic emptying system for condensate water of a breathing machine. The mixing assembly is used for conveying air with the specified oxygen concentration, the humidifying assembly is used for gas washing, the gas outlet end of the mixing assembly is connected with the gas inlet end of the humidifying assembly, and the gas outlet end of the humidifying assembly is connected with a condensation assembly; the condensation assembly comprises a collection bottle used for collecting condensate water, and an emptying assembly is connected into the collection bottle in a sliding mode. The buoyancy of condensate water to an induction ball is gradually increased along with the increase of the condensate water flowing into a collecting bottle, the position of a grating pipe in a drainage pipe is kept unchanged at the beginning, the induction ball drives a connecting rod to slide out of a trigger pipe, and a spring is lengthened to store elastic potential energy during the period; and the induction ball pulls the trigger pipe through the connecting rod, and the trigger pipe drives the grating pipe to slide upwards from the interior of the drainage pipe, so that the condensate water in the collection bottle flows out from the gap of the grating pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilators, and more specifically, to an intelligent anti-reflux and automatic drainage system for ventilator condensate water. Background Art

[0002] Due to the influence of pipeline length and ambient temperature, condensate water is generated when the exhaled gas of the patient enters the ventilator pipeline. The condensate water is usually collected by a dedicated collection device. When the collection device reaches its maximum collection capacity, the condensate water inside it needs to be drained in time to prevent backflow from blocking the patient's airway.

[0003] In the existing ventilator condensate water collection device, a trigger structure is usually set to automatically drain the condensate water after the collection device is full. Common trigger structures use the buoyancy of the condensate water to open the drain port of the collection device through a buoyancy structure and then drain the water. However, in actual use of the above buoyancy structure, the water in the collection structure can only be drained when the buoyancy of the water on the buoyancy structure is greater than the resistance to opening the drain port switch. That is to say, as the condensate water is drained, when the water volume in the collection device decreases to the point where the buoyancy is less than the buoyancy when the drain port switch is opened, the drain port will automatically close. At this time, there will still be some condensate water left in the collection device. When the condensate water remains in the collection device for a long time, it is easy to breed bacteria.

[0004] In view of this, we propose an intelligent anti-reflux and automatic drainage system for ventilator condensate water to improve the deficiencies in the prior art. Summary of the Invention

[0005] The present invention provides an intelligent anti-reflux and automatic drainage system for ventilator condensate water, which solves the problem that when the water volume in the collection device decreases to the point where the buoyancy is less than the buoyancy when the drain port switch is opened as the condensate water is drained, the drain port will automatically close. At this time, there will still be some condensate water left in the collection device, that is:

[0006] The buoyancy-triggered switch mechanism is likely to cause the problem that the condensate water in the collection device is difficult to drain.

[0007] To achieve the above object, the intelligent anti-reflux and automatic drainage system for ventilator condensate water includes a mixing component for delivering air with a specified oxygen concentration and a humidifying component for gas washing. The air outlet end of the mixing component is connected to the air inlet end of the humidifying component, and the air outlet end of the humidifying component is connected to a condensation component;

[0008] The condensation component includes a collection bottle for collecting condensate water. A drainage component is slidably connected inside the collection bottle, and the drainage component is used to drain the water inside the condensation component when the collection bottle reaches its maximum collection capacity;

[0009] The drain component has an up-and-down sliding split structure. When the buoyancy of the condensed water in the collection bottle on the drain component is greater than the upward sliding resistance of the drain component, the drain component slides upward to drain the condensed water in the condensation component. At the moment when the buoyancy of the condensed water in the collection bottle on the drain component changes from being greater than the upward sliding resistance of the drain component to being less than the upward sliding resistance of the drain component, the drain component slides back towards each other by itself to extend the time for the condensation component to drain the condensed water.

[0010] In the above technical solution, the drain component includes a trigger tube slidably connected in the drain pipe. An induction ball is slidably connected to the top of the trigger tube, and the maximum radius of the induction ball is smaller than the inner diameter of the collection bottle.

[0011] A connecting rod is fixedly connected to the bottom of the induction ball. The connecting rod is slidably connected in the trigger tube. A grid tube is fixedly connected to the top of the trigger tube. A sealing plate for preventing condensed water from entering the inside of the trigger tube is provided between the trigger tube and the grid tube. A spring is fixedly connected between the top of the sealing plate and the bottom of the connecting rod.

[0012] In another technical solution, as the condensed water flowing into the collection bottle increases, the buoyancy of the condensed water on the induction ball gradually increases. At first, the position of the grid tube in the drain pipe remains unchanged, that is, the drain pipe does not discharge the condensed water externally. The induction ball drives the connecting rod to slide out of the trigger tube. During this period, the spring is stretched to store elastic potential energy. When the condensed water causes the induction ball to continue to float upward, the induction ball pulls the trigger tube through the connecting rod, and the trigger tube drives the grid tube to slide upward from the drain pipe. Then, the condensed water in the collection bottle flows out from the gaps of the grid tube.

[0013] As the condensed water continues to flow out, the buoyancy of the condensed water on the induction ball continuously decreases. Due to the hysteresis triggering mechanism of the spring, the position of the grid tube in the drain pipe continues to remain unchanged, and the induction ball retracts under the action of the spring restoring force, that is, the connecting rod slides into the trigger tube. During this period of time, the condensed water continuously flows out from the drain pipe along the gaps of the grid tube, thereby extending the drainage time of the condensed water to empty the condensed water in the collection bottle.

[0014] Based on the above description, it can be seen that compared with the prior art, the beneficial effects of the present invention are:

[0015] By setting that as the condensed water flowing into the collection bottle increases, the buoyancy of the condensed water on the induction ball gradually increases. At first, the position of the grid tube in the drain pipe remains unchanged. The induction ball drives the connecting rod to slide out of the trigger tube. During this period, the spring is stretched to store elastic potential energy. When the condensed water causes the induction ball to continue to float upward, the induction ball pulls the trigger tube through the connecting rod, and the trigger tube drives the grid tube to slide upward from the drain pipe. Then, the condensed water in the collection bottle flows out from the gaps of the grid tube.

[0016] As the condensed water continues to flow out, the buoyancy of the condensed water on the induction ball continuously decreases. Due to the hysteresis triggering mechanism of the spring, the position of the grille pipe in the drain pipe remains unchanged, while the induction ball retracts under the action of the spring restoring force, that is, the connecting rod slides into the trigger pipe. During this period, the condensed water continuously flows out of the drain pipe along the gaps of the grille pipe, thereby prolonging the drainage time of the condensed water to empty the condensed water in the collection bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0018] Figure 1 is a three-dimensional view of the overall structure of the present invention;

[0019] Figure 2 is a right view of a partial section of the present invention;

[0020] Figure 3 is a three-dimensional view of a partial section of the present invention;

[0021] Figure 4 is a right view of a partial section of the mixing component of the present invention;

[0022] Figure 5 is a three-dimensional view of a partial section of the humidifying component of the present invention;

[0023] Figure 6 is a three-dimensional view of a partial section of the condensation component of the present invention;

[0024] Figure 7 is a three-dimensional view of a partial section of the emptying component of the present invention;

[0025] Figure 8 is a front view of a partial section of the emptying component of the present invention.

[0026] The meanings of the various reference numerals in the drawings are as follows:

[0027] 100, mixing component; 110, air pump; 120, oxygen pump; 130, delivery pipe; 140, mixing pipe;

[0028] 200, humidifying component; 210, washing gas bottle; 220, air-oxygen pipe;

[0029] 300, condensation component; 310, intake pipe; 320, exhalation pipe; 330, condensation chamber; 340, intake valve; 350, exhalation valve; 360, collection pipe; 370, collection bottle; 380, drain pipe;

[0030] 400, Drainage assembly; 410, Induction ball; 420, Trigger tube; 430, Link; 440, Grille tube; 450, Sealing plate; 460, Spring. Detailed implementation

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in 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 in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0032] Since the buoyancy-triggered switch mechanism is likely to cause the problem that the condensed water in the collection device is difficult to drain, please refer to Figures 1-3 , so the purpose of this embodiment is to provide an intelligent anti-reflux and automatic drainage system for the condensed water of a ventilator, including a mixing assembly 100 for delivering air with a specified oxygen concentration and a humidifying assembly 200 for gas washing. The air outlet end of the mixing assembly 100 is connected to the air inlet end of the humidifying assembly 200, and the air outlet end of the humidifying assembly 200 is connected to a condensation assembly 300;

[0033] The condensation assembly 300 includes a collection bottle 370 for collecting condensed water. A drainage assembly 400 is slidably connected inside the collection bottle 370. The drainage assembly 400 is used to drain the water inside the condensation assembly 300 when the collection bottle 370 reaches the maximum collection capacity;

[0034] The drainage assembly 400 is a vertically sliding split structure. When the buoyancy of the condensed water in the collection bottle 370 on the drainage assembly 400 is greater than the upward sliding resistance of the drainage assembly 400, the drainage assembly 400 slides upward to drain the condensed water in the condensation assembly 300. At the moment when the buoyancy of the condensed water in the collection bottle 370 on the drainage assembly 400 changes from being greater than the upward sliding resistance of the drainage assembly 400 to being less than the upward sliding resistance of the drainage assembly 400, the drainage assembly 400 slides back towards each other by itself to extend the time for the condensation assembly 300 to drain the condensed water.

[0035] As Figure 4 shown, the mixing assembly 100 includes an air pump 110 and an oxygen pump 120. The air pump 110 and the oxygen pump 120 are used to obtain an air-oxygen mixture with a specified concentration.

[0036] The improvement lies in that: the air outlet ends of both the air pump 110 and the oxygen pump 120 are connected to a delivery pipe 130, and the air outlet ends of the two delivery pipes 130 are connected to a mixing pipe 140.

[0037] By controlling the proportion of air and oxygen (medical pure oxygen with a concentration of over 99.99%) delivered by the air pump 110 and the oxygen pump 120, the two gases are mixed to obtain specified-concentration air-oxygen gas suitable for the needs of different patients.

[0038] In Figure 5 the humidifying component 200 includes a washing bottle 210. The mixing pipe 140 is connected to the washing bottle 210, and the top of the washing bottle 210 is connected to an air-oxygen pipe 220.

[0039] Moreover, the interface between the mixing pipe 140 and the washing bottle 210 is located below the liquid level in the washing bottle 210, and the air inlet end of the mixing pipe 140 is located above the liquid level in the washing bottle 210.

[0040] That is to say, the air-oxygen pipe 220 delivers the specified-concentration air-oxygen mixed gas into the washing liquid (such as water) in the washing bottle 210. Then, the air-oxygen mixed gas escapes from the washing liquid, and then the air-oxygen mixed gas humidified by the washing liquid and washed of soluble impurities enters the air-oxygen pipe 220 and enters the patient's airway when the patient inhales.

[0041] Next, through Figure 6 the specific structure of the innovative structure is disclosed. The condensing component 300 includes an inhalation pipe 310 connected to the air-oxygen pipe 220. One end of the inhalation pipe 310 away from the air-oxygen pipe 220 is connected to an exhalation pipe 320, and a condensing chamber 330 is provided between the exhalation pipe 320 and the air-oxygen pipe 220.

[0042] Furthermore, a collecting pipe 360 is connected to the bottom of the condensing chamber 330. The bottom of the collecting pipe 360 is connected to the top of a collecting bottle 370, and a drain pipe 380 is connected to the bottom of the collecting bottle 370. The height of the condensing chamber 330 is lower than that of the inhalation pipe 310 and the exhalation pipe 320.

[0043] Still further, the condensing component 300 further includes an inhalation valve 340 located in the air-oxygen pipe 220, and an exhalation valve 350 is provided in the pipeline between the connection port of the condensing chamber 330 and the air-oxygen pipe 220.

[0044] It should be noted that both the inhalation valve 340 and the exhalation valve 350 are one-way valves.

[0045] That is to say, after the humidified air-oxygen mixture enters the air-oxygen tube 220, when the patient inhales, the inhalation valve 340 opens and the exhalation valve 350 closes, and the air-oxygen mixture enters the patient's airway along the inhalation tube 310 (connected to the breathing mask worn by the patient). When the patient exhales, the inhalation valve 340 closes and the exhalation valve 350 opens, and the gas exhaled by the patient is discharged to the outside through the exhalation tube 320 along the inhalation tube 310. During this period, due to the influence of the pipeline length and the external temperature, the air exhaled by the patient is condensed when passing through the condensation chamber 330, and the condensed water flows into the collection bottle 370 along the collection tube 360. Since the height of the condensation chamber 330 is lower than the heights of the inhalation tube 310 and the exhalation tube 320, the condensed water is prevented from flowing back into the patient's airway.

[0046] Based on the above description, the preferred effect of the evacuation assembly 400 will be further explained below in combination with Figure 7 and Figure 8 The evacuation assembly 400 includes a trigger tube 420 slidably connected in the drain pipe 380. An induction ball 410 is slidably connected to the top of the trigger tube 420, and the maximum radius of the induction ball 410 is smaller than the inner diameter of the collection bottle 370.

[0047] Moreover, a connecting rod 430 is fixedly connected to the bottom of the induction ball 410. The connecting rod 430 is slidably connected in the trigger tube 420. A grid tube 440 is fixedly connected to the top of the trigger tube 420. A sealing plate 450 for preventing condensed water from entering the inside of the trigger tube 420 is provided between the trigger tube 420 and the grid tube 440. A spring 460 is fixedly connected between the top of the sealing plate 450 and the bottom of the connecting rod 430.

[0048] It should be noted that as the condensed water flowing into the collection bottle 370 increases, the buoyancy of the condensed water on the induction ball 410 gradually increases. At first, the position of the grid tube 440 in the drain pipe 380 remains unchanged, that is, the drain pipe 380 does not discharge the condensed water. The induction ball 410 drives the connecting rod 430 to slide out of the trigger tube 420. During this period, the spring 460 is stretched to store elastic potential energy. When the condensed water causes the induction ball 410 to continue to float, the induction ball 410 pulls the trigger tube 420 through the connecting rod 430, and the trigger tube 420 drives the grid tube 440 to slide up from the drain pipe 380. Then, the condensed water in the collection bottle 370 flows out through the gap of the grid tube 440.

[0049] As the condensed water continues to flow out, the buoyancy of the condensed water on the induction ball 410 continuously decreases. Due to the hysteresis trigger mechanism of the spring 460, the position of the grid pipe 440 in the drain pipe 380 remains unchanged, while the induction ball 410 retracts under the restoring force of the spring 460, that is, the connecting rod 430 slides into the trigger pipe 420. During this period, the condensed water continuously flows out of the drain pipe 380 along the gaps of the grid pipe 440, thereby prolonging the drainage time of the condensed water to empty the condensed water in the collection bottle 370.

[0050] In summary, the working principle of the present invention is as follows:

[0051] After the air-oxygen mixed gas humidified and washed by the scrubbing bottle 210 enters the air-oxygen pipe 220, when the patient inhales, the inhalation valve 340 opens and the exhalation valve 350 closes, and the air-oxygen mixed gas flows into the patient's airway along the inhalation pipe 310. When the patient exhales, the inhalation valve 340 closes and the exhalation valve 350 opens, and the gas exhaled by the patient flows out to the outside along the inhalation pipe 310 from the exhalation pipe 320. During this period, due to the influence of factors such as the pipeline length and the external temperature, the air exhaled by the patient condenses when passing through the condensation chamber 330, and the condensed water flows into the collection bottle 370 along the collection pipe 360. Since the height of the condensation chamber 330 is set lower than the heights of the inhalation pipe 310 and the exhalation pipe 320, the condensed water is prevented from flowing back into the patient's airway.

[0052] As the condensed water flowing into the collection bottle 370 increases, the buoyancy of the condensed water on the induction ball 410 gradually increases. At first, the position of the grid pipe 440 in the drain pipe 380 remains unchanged, that is, the drain pipe 380 does not discharge the condensed water externally, and the induction ball 410 drives the connecting rod 430 to slide out of the trigger pipe 420. During this period, the spring 460 is stretched to store elastic potential energy. When the condensed water causes the induction ball 410 to continue to float, the induction ball 410 pulls the trigger pipe 420 through the connecting rod 430, and the trigger pipe 420 drives the grid pipe 440 to slide upward from the drain pipe 380, so that the condensed water in the collection bottle 370 flows out from the gaps of the grid pipe 440.

[0053] As the condensed water continues to flow out, the buoyancy of the condensed water on the induction ball 410 continuously decreases. Due to the hysteresis trigger mechanism of the spring 460, the position of the grid pipe 440 in the drain pipe 380 remains unchanged, while the induction ball 410 retracts under the restoring force of the spring 460, that is, the connecting rod 430 slides into the trigger pipe 420. During this period, the condensed water continuously flows out of the drain pipe 380 along the gaps of the grid pipe 440, thereby prolonging the drainage time of the condensed water to empty the condensed water in the collection bottle 370.

[0054] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. Intelligent anti-reflux and automatic drainage system for ventilator condensate, comprising a mixing component (100) for delivering air with a specified oxygen concentration and a humidifying component (200) for gas washing. The air outlet end of the mixing component (100) is connected to the air inlet end of the humidifying component (200), and the air outlet end of the humidifying component (200) is connected to a condensation component (300), characterized in that: The condensation component (300) includes a collection bottle (370) for collecting condensate. A drainage component (400) is slidably connected inside the collection bottle (370), and the drainage component (400) is used to drain the water inside the condensation component (300) when the collection bottle (370) reaches its maximum collection capacity; The drainage component (400) is a vertically sliding split structure. When the buoyancy of the condensate in the collection bottle (370) on the drainage component (400) is greater than the upward sliding resistance of the drainage component (400), the drainage component (400) slides upward to drain the condensate in the condensation component (300). At the moment when the buoyancy of the condensate in the collection bottle (370) on the drainage component (400) changes from being greater than the upward sliding resistance of the drainage component (400) to being less than the upward sliding resistance of the drainage component (400), the drainage component (400) slides back towards each other by itself to extend the time for the condensation component (300) to drain the condensate.

2. The intelligent anti-backflow and automatic drainage system for ventilator condensate water according to claim 1, wherein: The mixing component (100) includes an air pump (110) and an oxygen pump (120), and the air pump (110) and the oxygen pump (120) are used to obtain an air-oxygen mixture with a specified concentration.

3. The intelligent anti-backflow and automatic emptying system for ventilator condensate water according to claim 2, characterized in that: The air outlet ends of the air pump (110) and the oxygen pump (120) are both connected to a delivery pipe (130), and the air outlet ends of the two delivery pipes (130) are connected to a mixing pipe (140).

4. The intelligent anti-backflow and automatic drainage system for ventilator condensate water according to claim 3, characterized in that: The humidifying component (200) includes a gas washing bottle (210), the mixing pipe (140) is connected to the gas washing bottle (210), and the top of the gas washing bottle (210) is connected to an air-oxygen pipe (220).

5. The intelligent anti-reflux and automatic drainage system for ventilator condensate water according to claim 4, characterized in that: The interface between the mixing pipe (140) and the gas washing bottle (210) is located below the liquid level inside the gas washing bottle (210), and the air inlet end of the air-oxygen pipe (220) is located above the liquid level inside the gas washing bottle (210).

6. The intelligent anti-reflux and automatic drainage system for condensate water of a ventilator according to claim 4, wherein: The condensation component (300) includes an intake pipe (310) connected to the air-oxygen pipe (220). The end of the intake pipe (310) far from the air-oxygen pipe (220) is connected to an exhalation pipe (320), and a condensation chamber (330) is provided between the exhalation pipe (320) and the air-oxygen pipe (220).

7. The intelligent anti-backflow and automatic emptying system for ventilator condensate water according to claim 6, characterized in that: The bottom of the condensation chamber (330) is connected to a collection pipe (360), the bottom of the collection pipe (360) is connected to the top of the collection bottle (370), the bottom of the collection bottle (370) is connected to a drainage pipe (380), and the height of the condensation chamber (330) is lower than that of the intake pipe (310) and the exhalation pipe (320).

8. The intelligent anti-backflow and automatic drainage system for ventilator condensate water according to claim 6, characterized in that: The condensation component (300) further includes an intake valve (340) located inside the air-oxygen pipe (220), and an exhalation valve (350) is provided in the pipeline between the condensation chamber (330) and the connection port of the air-oxygen pipe (220).

9. The intelligent anti-reflux and automatic drainage system for ventilator condensate water according to claim 1, characterized in that: The evacuation component (400) includes a trigger tube (420) slidably connected inside the drain pipe (380). An induction ball (410) is slidably connected to the top of the trigger tube (420), and the maximum radius of the induction ball (410) is smaller than the inner diameter of the collection bottle (370).

10. The intelligent anti-reflux and automatic drainage system for ventilator condensate water according to claim 9, characterized in that: A connecting rod (430) is fixedly connected to the bottom of the induction ball (410). The connecting rod (430) is slidably connected inside the trigger tube (420). A grid tube (440) is fixedly connected to the top of the trigger tube (420). A sealing plate (450) for preventing condensed water from entering the inside of the trigger tube (420) is provided between the trigger tube (420) and the grid tube (440). A spring (460) is fixedly connected between the top of the sealing plate (450) and the bottom of the connecting rod (430).

Images