A breathing valve assembly for a ventilator

Abstract

This invention relates to the field of respiratory valve technology, specifically disclosing a respiratory valve assembly for a ventilator, including a respiratory valve body with a sump bottle at its lower end. The sump bottle has multiple sets. A switching assembly is located between the sump bottle and the respiratory valve body, allowing for switching of the sump bottle to prevent overflow into the respiratory valve body. A locking assembly is located between the multiple sets of sump bottles, locking the switching assembly when no sump bottle is inserted into the lower end of the respiratory valve body. By setting the switching assembly, the sump bottle can be replaced by rotating a rotating disc driven by a motor after it is full, preventing internal liquid from flowing back into the respiratory valve body due to a full sump bottle. Simultaneously, it eliminates the need to remove the respiratory valve body, preventing exhaled air from flowing out. The locking assembly controls the rotation of the rotating disc, increasing the stability of the device.

Description

Technical Field

[0001] This invention relates to the field of breathing valve technology, specifically to a breathing valve assembly for a ventilator. Background Technology

[0002] A breathing valve typically consists of components such as a valve cover, valve seat, spring, piston, and valve core. During breathing, when a person inhales, the air pressure inside the lungs decreases, and the valve core is drawn open by the negative pressure inside the respiratory tract, allowing air to enter the lungs. When a person exhales, the air pressure inside the lungs increases, and the valve core is pushed closed, preventing air from flowing out of the lungs. In this way, by opening and closing the breathing valve, the inflow and outflow of respiratory gases are regulated, while protecting the respiratory tract from the intrusion of harmful external substances.

[0003] As an important component of the ventilator, the breathing valve plays a role in monitoring and moderating the pressure of exhaled gas during use. However, because the patient's exhaled air contains moisture, it will condense water when it comes into contact with the cold tubing and breathing valve. This moisture will be concentrated in the sump. If the sump is not replaced in time, the liquid inside the sump will flow back into the breathing valve, causing the breathing valve to alarm PEEP. Although frequent replacement of the sump can solve the problem, it will increase the risk of infection for patients with infectious diseases.

[0004] Therefore, we propose a breathing valve assembly for ventilators. Summary of the Invention

[0005] The purpose of this invention is to provide a breathing valve assembly for a ventilator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a breathing valve assembly for a ventilator, comprising a breathing valve body, wherein a fluid collection bottle is provided at the lower end of the breathing valve body, and the number of fluid collection bottles is not limited to one set;

[0007] A switching component is located between the effluent bottle and the breathing valve body, which can switch the effluent bottle to prevent the effluent bottle from overflowing into the breathing valve body.

[0008] A locking component is located between multiple sets of liquid collection bottles. When multiple sets of liquid collection bottles are not inserted into the lower end of the breathing valve body, the switching component is locked to prevent switching errors.

[0009] The switching component includes a motor, which is fixedly connected to the outer surface of the front end of the breathing valve body. A base is fixedly connected to the outer surface of the lower end of the breathing valve body. A rotating disk is rotatably connected to the lower end of the base via a bearing. An insertion port is provided on the outer surface of the lower end of the rotating disk. The liquid collection bottle is inserted into the insertion port. There are two sets of insertion ports. A drive wheel is fixedly connected to the end of the output shaft of the motor. The drive wheel is in contact with the rotating disk.

[0010] The liquid collection bottle has a guide groove on its annular outer surface. Magnet one and magnet two are fixedly connected to the upper and lower ends of the inner surface of the guide groove, respectively. A guide block is fixedly connected to the corresponding position of the insertion port and the guide groove. A sliding cavity is formed on one side of the inner surface of the insertion port.

[0011] Among them, a spring is fixedly connected to the upper end of the inner surface of the liquid bottle, a connecting plate is fixedly connected to the lower end of the outer surface of the spring, a piston is fixedly connected to the upper end of the connecting plate, a T-shaped top rod (25) is fixedly connected to the inner surface of the socket, the diameter of the connecting plate is the same as the inner diameter of the liquid bottle, and a pressure sensor is fixedly connected to the lower end of the inner surface of the socket.

[0012] The locking assembly includes a sliding groove, a locking block slidably connected inside the sliding groove, a telescopic groove formed on the upper end of the inner surface of the sliding groove, a telescopic rod slidably connected inside the telescopic groove, a push plate fixedly connected to the outer surface of the upper end of the telescopic rod, a cavity formed at the position corresponding to the push plate of the base, a conductive terminal fixedly connected to the upper end of the inner surface of the cavity, and a conductive ring slidably connected at the position corresponding to the push plate and the conductive terminal.

[0013] The sliding groove has two open ends, and there are two sets of locking blocks. The edges of the two sets of locking blocks that are far apart from each other are designed with an inclined structure, and a spring is fixedly connected between them.

[0014] The upper outer surface of the card block is fixedly connected to a slider, and a sliding groove is opened at the corresponding position of the slider, with the slider located inside the sliding groove.

[0015] The guide block has a locking groove inside, which is designed in an "H" shape. A rotating wheel is rotatably connected inside the locking groove via a rotating shaft. A push rod is attached to the annular outer surface of the rotating wheel and slides inside the locking groove. A spring is fixedly connected between the push rod and the locking groove. A rotating wheel is fixedly connected to one side of the rotating wheel. A locking rod is attached to the annular outer surface of the rotating wheel. The guide groove has a groove corresponding to the locking rod, and the locking rod can be inserted into the groove.

[0016] The diameter of the first rotating wheel is larger than that of the second rotating wheel, and the height and width of the push rod are both greater than those of the locking rod.

[0017] This invention has at least the following beneficial effects:

[0018] By setting up a switching component, the fluid bottle can be replaced by rotating a rotating disc driven by a motor when it is full, thus achieving the effect of quickly switching the fluid bottle. This avoids the internal fluid from flowing back into the breathing valve body due to the fluid bottle being full, and at the same time, it does not require removing the breathing valve body, preventing the patient's exhaled air from flowing out. By setting up a locking component, the rotation of the rotating disc can be controlled, increasing the stability of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the card insertion structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the rotating disk of the present invention;

[0022] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the locking component of the present invention;

[0024] Figure 6 This is a schematic diagram of the liquid collection bottle of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0026] Figure 8 This is an enlarged structural diagram of point C in the present invention.

[0027] Figure 9 This is a schematic diagram of the overall exploded structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the second embodiment of the present invention.

[0029] In the diagram: 1. Breathing valve body; 10. Liquid collection bottle; 2. Switching assembly; 20. Motor; 201. Drive wheel; 21. Base; 22. Rotary disc; 23. Inlet; 24. Slide cavity; 25. Push rod; 26. Piston; 27. Connecting plate; 28. Spring 1; 29. ​​Pressure sensor; 3. Locking assembly; 30. Guide groove; 31. Magnet 1; 32. Magnet 2; 33. Sliding groove; 34. Telescopic groove; 35. Telescopic rod; 36. Push plate; 37. Conductive ring; 38. Conductive terminal; 39. Cavity; 40. Slide groove; 41. Slider; 42. Locking block; 43. Spring 2; 44. Guide block; 50. Locking groove; 51. Push rod; 52. Rotary wheel 1; 53. Rotary wheel 2; 54. Locking rod; 55. Groove; 56. Spring 3. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] Please see Figure 1-10 The present invention provides a technical solution: a breathing valve assembly for a ventilator, including a breathing valve body 1, wherein a liquid collection bottle 10 is provided at the lower end of the breathing valve body 1, and the number of liquid collection bottles 10 is not more than one set;

[0033] Switching component 2, located between the liquid collection bottle 10 and the breathing valve body 1, can switch the liquid collection bottle 10 to prevent the liquid collection bottle 10 from overflowing into the breathing valve body 1.

[0034] The locking component 3 is located between multiple sets of liquid collection bottles 10. When multiple sets of liquid collection bottles 10 are not inserted into the lower end of the breathing valve body 1, the switching component 2 is locked to prevent switching errors.

[0035] The switching component 2 includes a motor 20, which is fixedly connected to the outer surface of the front end of the breathing valve body 1. A base 21 is fixedly connected to the outer surface of the lower end of the breathing valve body 1. A rotating disk 22 is rotatably connected to the lower end of the base 21 via a bearing. An insertion port 23 is provided on the outer surface of the lower end of the rotating disk 22. The liquid collection bottle 10 is inserted into the insertion port 23. There are two sets of insertion ports 23. A drive wheel 201 is fixedly connected to the end of the output shaft of the motor 20. The drive wheel 201 contacts the rotating disk 22. The motor 20 drives the drive wheel 201 to rotate, thereby driving the rotating disk 22 to rotate. The liquid collection bottles 10 inside the insertion ports 23 rotate synchronously, thereby switching to another empty liquid collection bottle 10 when one set of liquid collection bottles 10 is full, preventing the liquid inside the liquid collection bottle 10 from overflowing into the breathing valve body 1.

[0036] The liquid collection bottle 10 has a guide groove 30 on its annular outer surface. Magnet 1 31 and magnet 2 32 are fixedly connected to the upper and lower ends of the inner surface of the guide groove 30, respectively. A guide block 44 is fixedly connected to the corresponding position of the insertion port 23 and the guide groove 30. The guide block 44 is made of magnetic metal. A sliding cavity 24 is formed on one side of the inner surface of the insertion port 23. A spring 1 28 is fixedly connected to the upper end of the inner surface of the liquid collection bottle 10. A connecting plate 27 is fixedly connected to the lower outer surface of the spring 1 28. A piston 26 is fixedly connected to the upper end of the connecting plate 27. A T-shaped top rod 25 is fixedly connected to the annular inner surface of the insertion port 23. The diameter of the connecting plate 27 is the same as the inner diameter of the liquid collection bottle 10. A pressure sensor 29 is fixedly connected to the lower end of the inner surface of the insertion port 23.

[0037] When installing the liquid collection bottle 10, first align the guide groove 30 with the guide block 44, then slide it along the slide cavity 24 to the aligned position of the socket 23. At this time, the guide block 44 is located inside the guide groove 30, and the magnet 2 32 magnetically attracts the guide block 44, pushing the liquid collection bottle 10 upward, so that the magnet 1 31 magnetically attracts the guide block 44, and the liquid collection bottle 10 rises to the highest point. At this time, the connecting plate 27 and the piston 26 are resisted by the push rod 25 and move downward to open the liquid collection bottle 10. At this time, the breather valve body 1 and the liquid collection bottle 10 are connected through the socket 23, and the pressure sensor 29 is resisted by the liquid collection bottle 10. When the weight of the liquid inside the liquid collection bottle 10 reaches... When a certain value is reached, magnet 31 disengages from the magnetic connection of guide block 44, and magnet 32 ​​becomes magnetically connected to guide block 44. At the same time, pressure sensor 29 loses its resistance, motor 20 starts and drives rotating disk 22 to rotate 180 degrees, switching the liquid collection bottle 10. The full liquid collection bottle 10 loses the resistance of push rod 25, piston 26 and connecting plate 27 seal the bottle opening of liquid collection bottle 10 under the action of spring 28, preventing internal liquid from flowing out. With the above structure, liquid collection bottle 10 can be quickly replaced without removing the breather valve body 1, and liquid backflow into the breather valve is prevented due to full liquid collection bottle 10.

[0038] The locking assembly 3 includes a sliding groove 33, in which a locking block 42 is slidably connected. A telescopic groove 34 is formed on the upper end of the inner surface of the sliding groove 33. A telescopic rod 35 is slidably connected inside the telescopic groove 34. A push plate 36 is fixedly connected to the outer surface of the upper end of the telescopic rod 35. A cavity 39 is formed at the position corresponding to the push plate 36 on the base 21. A conductive terminal 38 is fixedly connected to the upper end of the inner surface of the cavity 39. A conductive ring 37 is slidably connected to the push plate 36 at the position corresponding to the conductive terminal 38. Both ends of the sliding groove 33 are open. There are two sets of locking blocks 42. The edges of the two sets of locking blocks 42 that are far apart from each other are designed with an inclined structure to facilitate the upward movement of the liquid bottle 10. A spring 43 is fixedly connected between the two sets.

[0039] To prevent the rotating disk 22 from spinning idly, only when both sets of locking blocks 42 are resisted by the liquid collection bottle 10, will the air inside the sliding groove 33 be forced into the telescopic groove 34, pushing the telescopic rod 35 upward. This will cause the push plate 36 to drive the conductive ring 37 to contact the conductive terminal 38, at which point the motor 20 can be energized. If only one set of locking blocks 42 forces the air inside the sliding groove 33 into the telescopic groove 34, the amount of air is insufficient to lift the telescopic rod 35 and the push plate 36 to the position of the conductive terminal 38. In this case, the motor 20 cannot be energized, and the magnet 22 and the guide block 44 attract each other, preventing the liquid collection bottle 10 from falling off due to the spring 2 43, thus increasing the stability of the structure.

[0040] A slider 41 is fixedly connected to the upper outer surface of the card block 42. A sliding groove 40 is opened at the corresponding position of the sliding groove 33 and the slider 41. The slider 41 is located inside the sliding groove 40, which limits the maximum movement distance of the card block 42.

[0041] Example 2

[0042] The guide block 44 has a locking groove 50 inside, which is an "H" shaped structure. A first rotating wheel 52 is rotatably connected inside the locking groove 50 via a rotating shaft. A push rod 51 is attached to the annular outer surface of the first rotating wheel 52. The push rod 51 slides inside the locking groove 50. A third spring 56 is fixedly connected between the push rod 51 and the locking groove 50. A second rotating wheel 53 is fixedly connected to one side of the first rotating wheel 52. A locking rod 54 is attached to the annular outer surface of the second rotating wheel 53. A groove 55 is opened inside the guide groove 30 corresponding to the locking rod 54. The locking rod 54 can be inserted into the groove 55.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A breathing valve assembly for a ventilator, comprising a breathing valve body (1), wherein a collection bottle (10) is provided at the lower end of the breathing valve body (1), characterized in that: The number of the liquid collection bottles (10) is not limited to one set; The switching component (2) is located between the liquid collection bottle (10) and the breathing valve body (1), and can switch the liquid collection bottle (10) to prevent the liquid collection bottle (10) from overflowing into the breathing valve body (1). Locking component (3) is located between multiple sets of liquid collection bottles (10). When multiple sets of liquid collection bottles (10) are not inserted into the lower end of the breathing valve body (1), the switching component (2) is locked to avoid switching errors. The switching component (2) includes a motor (20), which is fixedly connected to the outer surface of the front end of the breathing valve body (1). A base (21) is fixedly connected to the outer surface of the lower end of the breathing valve body (1). A rotating disk (22) is rotatably connected to the lower end of the base (21) through a bearing. An insertion port (23) is opened on the outer surface of the lower end of the rotating disk (22). The liquid collection bottle (10) is inserted into the insertion port (23). There are two sets of insertion ports (23). A drive wheel (201) is fixedly connected to the end of the output shaft of the motor (20). The drive wheel (201) is in contact with the rotating disk (22). The liquid collection bottle (10) has a guide groove (30) on its annular outer surface. Magnet one (31) and magnet two (32) are fixedly connected to the upper and lower ends of the inner surface of the guide groove (30) respectively. A guide block (44) is fixedly connected to the corresponding position of the inlet (23) and the guide groove (30). A sliding cavity (24) is provided on one side of the inner surface of the inlet (23). A spring (28) is fixedly connected to the upper end of the inner surface of the liquid collection bottle (10), a connecting plate (27) is fixedly connected to the lower outer surface of the spring (28), a piston (26) is fixedly connected to the upper end of the connecting plate (27), a T-shaped push rod (25) is fixedly connected to the annular inner surface of the socket (23), the diameter of the connecting plate (27) is the same as the inner diameter of the liquid collection bottle (10), and a pressure sensor (29) is fixedly connected to the lower end of the inner surface of the socket (23). The locking assembly (3) includes a sliding groove (33), a locking block (42) is slidably connected inside the sliding groove (33), a telescopic groove (34) is provided on the upper end of the inner surface of the sliding groove (33), a telescopic rod (35) is slidably connected inside the telescopic groove (34), a push plate (36) is fixedly connected to the outer surface of the upper end of the telescopic rod (35), a cavity (39) is provided on the base (21) at the corresponding position of the push plate (36), a conductive terminal (38) is fixedly connected to the upper end of the inner surface of the cavity (39), and a conductive ring (37) is slidably connected to the push plate (36) at the corresponding position of the conductive terminal (38). Both ends of the sliding groove (33) are open. There are two sets of the locking blocks (42). The edges of the two sets of locking blocks (42) that are far apart from each other are designed with an inclined structure, and a spring (43) is fixedly connected between them. The guide block (44) has a locking groove (50) inside. The locking groove (50) is designed with an "H" shape. The locking groove (50) is connected to a rotating wheel (52) through a rotating shaft. A push rod (51) is attached to the annular outer surface of the rotating wheel (52). The push rod (51) slides inside the locking groove (50). A spring (56) is fixedly connected between the push rod (51) and the locking groove (50). A rotating wheel (53) is fixedly connected to one side of the rotating wheel (52). A locking rod (54) is attached to the annular outer surface of the rotating wheel (53). The guide groove (30) has a groove (55) corresponding to the locking rod (54). The locking rod (54) can be inserted into the groove (55).

2. The breathing valve assembly for a ventilator according to claim 1, characterized in that: The upper outer surface of the card block (42) is fixedly connected to a slider (41), and the sliding groove (33) is provided with a groove (40) at the corresponding position of the slider (41), and the slider (41) is located inside the groove (40).

3. The breathing valve assembly for a ventilator according to claim 2, characterized in that: The diameter of the first rotating wheel (52) is greater than the diameter of the second rotating wheel (53), and the height and width of the push rod (51) are both greater than those of the locking rod (54).

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