Respiratory recovery auxiliary device for critical medicine patient

Abstract

The invention relates to the technical field of medical equipment, and discloses a respiratory recovery assisting device for a critical medical patient, which comprises a support frame, a movable bottom plate, a connecting plate, a top end fixed on the support frame, a loading and unloading structure arranged on one side of a shell and used for quickly replacing a first exhaust membrane flap valve, and an air guide unit arranged on one side of the shell and used for quickly replacing a second exhaust membrane flap valve. And the flow control structure is arranged on one side of the housing and comprises rotating plates rotationally connected to the interiors of the bearing seats, a transmission shaft fixed between the rotating plates and a guide assembly arranged on one sides of the rotating plates. By rotating the adjusting screw rod and adjusting and changing the contact position of the positioning rod and the rotating plate, the reciprocating motion stroke of the moving piston is further changed, so that the breathing flux adjusting function of the device is achieved, the breathing flux is adjusted according to the physiological difference of patients and real-time illness state dynamics, effective ventilation is maintained, and meanwhile after the illness state is improved, the breathing flux is adjusted. Flux is gradually reduced, and the respiratory muscle function is exercised.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and more specifically, relates to a respiratory recovery assist device for critically ill patients. Background Technology

[0002] In the field of critical care medicine, patients with respiratory failure caused by illness often face impaired spontaneous breathing function. Therefore, respiratory recovery assist devices for critical care patients have been developed to provide emergency ventilation support when the patient's condition is critical, maintain vital signs, and assist patients in progressive breathing training after the condition stabilizes, creating conditions for weaning off the ventilator and restoring spontaneous breathing function.

[0003] However, existing respiratory recovery assist devices for critically ill patients still have the following shortcomings: 1. In the existing technology, due to the different physiological differences in respiratory flux among people of different ages and body types, and because the existing piston-type ventilator has a fixed piston movement stroke, the respiratory flux is fixed and difficult to adjust. This can easily lead to insufficient ventilation, respiratory muscle damage or mechanical complications during use. Furthermore, for patients whose respiratory function is gradually recovering, it can easily cause "disuse atrophy" of the respiratory muscles, reducing the efficiency of weaning training. 2. In the existing technology, the air intake filter is difficult to clean. During the use of the device, various dust and foreign objects can easily clog the filter, causing the air intake resistance of the device to increase exponentially, which can lead to abnormal air pressure. At the same time, the gaps in the filter fibers become a breeding ground for pathogens such as bacteria and fungal spores, which is not conducive to the patient's recovery.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide a respiratory recovery assist device for critically ill patients, in order to achieve a more practical value. Summary of the Invention

[0005] The present invention provides a respiratory recovery assist device for critically ill patients, which overcomes the above-mentioned defects in the prior art.

[0006] The purpose and efficacy of this invention, a respiratory recovery assist device for critically ill patients, are achieved through the following specific technical means: A respiratory recovery assist device for critically ill patients includes a support frame. The movable base plate is installed at the bottom of the support frame; A connecting plate is fixed to the top of the support frame, and a cover is installed on the top of the connecting plate. A controller is installed on one side of the top of the cover, and a flip cover is rotatably connected to one side of the cover. The outer shell is installed on one side of the top of the cover, and an ultraviolet disinfection lamp is fixed inside the top of the outer shell. A filter screen is detachably installed inside the outer shell, and a rubber connecting seat connected to the filter screen is installed at the bottom inside the outer shell. The loading and unloading structure is located on one side of the housing and is used for quick replacement of the first exhaust diaphragm valve; An air guiding unit, located on one side of the casing, is used to transport airflow. An air intake cylinder is installed on one side inside the housing, and a first exhaust valve is installed on one side of the air intake cylinder, and a second intake valve is installed at the top of the air intake cylinder. An exhalation pump is installed on the other side inside the housing, and a first inlet valve is installed on one side of the exhalation pump, and a second exhaust valve is installed at the top of the exhalation pump. A movable piston is slidably connected inside the inhalation and exhalation cylinders, and a connecting rod is installed on one side of the movable piston; A bearing housing is installed on one side inside the connecting rod, and a drive motor is installed on one side of the bearing housing; A flow control structure is provided on one side of the connecting rod. The flow control structure includes a rotating plate rotatably connected inside the bearing housing, a moving plate rotatably connected to one side of the rotating plate, a positioning frame fixed to one side of the moving plate, a moving frame fixed to one side of the rotating plate, an adjusting screw threaded inside the moving frame and rotatably connected to the positioning frame, a transmission shaft fixed between the rotating plates, and a guide assembly provided on one side of the rotating plate. The cleaning structure, located at the top inside the housing, is used for backflushing and cleaning one of the filter screens.

[0007] Further technical solution: The air guiding unit includes a fixed guiding component including a positioning rod installed on one side of the connecting rod, a second guide groove opened inside the rotating plate and slidably connected to the positioning rod, and a first guide groove opened inside the moving plate and slidably connected to the positioning rod.

[0008] A further technical solution: a gear is installed at the end of the output shaft of the drive motor, and a gear ring is installed on the outer side of one set of the rotating plates for gear meshing.

[0009] A further technical solution: the movable frame is connected to the rotating plate through the movable plate, and the rotating plate is symmetrically distributed at the vertical center of the movable frame.

[0010] A further technical solution: The outer wall of the adjusting screw is provided with an external thread, and the inside of the moving frame is provided with an internal thread that cooperates with the external thread.

[0011] Further technical solution: The cleaning structure includes a semi-toothed ring fixed to the outside of the rotating plate, a rack meshing with the top of the semi-toothed ring, a slide rail fixed to the top of the inside of the cover and slidably connected to the rack, a moving rod fixed to one side of the rack, a cleaning piston fixed to one side of the moving rod, a cylinder sleeved on the outside of the cleaning piston, a return spring installed on one side of the inside of the cylinder and connected to the cleaning piston, a connecting pipe installed at the top of the cylinder, and an annular nozzle sleeved on the outside of the second air intake diaphragm valve and connected to the connecting pipe.

[0012] A further technical solution: The cleaning piston forms a telescopic structure with the cylinder through a return spring, and the moving rod extends to the outside of the cylinder and connects with the rack.

[0013] Further technical solution: The loading and unloading structure includes a connecting hinge installed at the top of one side of the cover, a flip plate installed at the rotating end of the connecting hinge, an electric telescopic rod rotatably connected to one side of the flip plate and rotatably connected to the outer shell, a mounting base fixed inside one side of the flip plate, and a mounting plate fixed at the bottom of the filter screen.

[0014] A further technical solution: the mounting plate and the mounting base form a plug-in structure, and the mounting plate and the rubber connecting base are located on the same vertical center line.

[0015] Further technical solution: The air guiding unit includes a heating humidifier fixed inside one side of the support frame and connected to the first exhaust valve at its input end, an inhalation circuit detachably installed at the output end of the heating humidifier, an inhalation valve installed at the top of the inhalation circuit, an exhalation circuit detachably installed on one side of the first intake valve, an exhalation valve installed at the top of the exhalation circuit, a three-way tube fixed at the top of the exhalation valve and the inhalation valve, and a mask installed on the three-way tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a respiratory recovery assist device for critically ill patients. By rotating the adjusting screw, the contact position between the positioning rod and the rotating plate is changed, thereby changing the reciprocating stroke of the moving piston. This enables the device to adjust the respiratory flux according to the patient's physiological differences and real-time condition dynamics to maintain effective ventilation. At the same time, after the condition improves, the flux is gradually reduced to exercise respiratory muscle function. The present invention provides a respiratory recovery assist device for critically ill patients. By driving the rack to translate through a semi-toothed ring, the cleaning piston moves to the right to inhale. After misalignment, the reset spring pushes the cleaning piston to the left to expel air, thereby realizing the intermittent backflushing cleaning of the filter screen. This achieves the backflushing cleaning function of the device, which can immediately remove dust, fibers and other blockages from the surface and deep pores of the filter screen and restore the air passage cross-sectional area of ​​the filter screen. The present invention provides a respiratory recovery assist device for critically ill patients. By using an electric telescopic rod to push the flipping plate to flip, the filter screen is moved out of the inside of the outer shell. The mounting plate is pulled upward to move out of the inside of the mounting base, thus the filter screen can be removed. This realizes the easy replacement function of the device, supports quick insertion and removal with one hand, so as to quickly complete independent operation and realize the "replace the filter screen as it gets dirty" function. Attached Figure Description

[0017] Figure 1 This is one of the overall three-dimensional structural schematic diagrams of the present invention; Figure 2 This is the second schematic diagram of the overall three-dimensional structure of the present invention; Figure 3 This is a three-dimensional structural schematic diagram of the air intake cylinder of the present invention, viewed from the front and in cross-section. Figure 4 This is one of the schematic diagrams of the three-dimensional cross-sectional structure of the air intake cylinder of the present invention; Figure 5 This is the second schematic diagram of the three-dimensional cross-sectional structure of the air intake cylinder of the present invention; Figure 6 This is a three-dimensional cross-sectional structural diagram of the flow control structure of the present invention; Figure 7 This is a three-dimensional structural diagram of the flow control structure of the present invention; Figure 8 This is a three-dimensional cross-sectional structural diagram of the cleaning structure of the present invention; Figure 9 This is a three-dimensional structural diagram of the loading and unloading structure of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Support frame; 2. Movable base plate; 3. Inhalation circuit; 4. Exhalation circuit; 5. Heated humidifier; 6. Flow control structure; 601. Rotating plate; 602. Movable plate; 603. Positioning frame; 604. Movable frame; 605. Adjusting screw; 606. Drive shaft; 607. Positioning rod; 608. First guide groove; 609. Second guide groove; 7. Cleaning structure; 701. Cylinder; 702. Annular nozzle; 703. Rack; 704. Semi-gear ring; 705. Connecting pipe; 706. Cleaning piston; 707. Movable rod; 708. Return spring; 709. Slide rail; 8. Loading and unloading structure; 801. Tilting plate; 80 2. Mounting base; 803. Connecting hinge; 804. Electric telescopic rod; 805. Mounting plate; 9. Exhalation valve; 10. Inhalation valve; 11. T-connector; 12. Mask; 13. Housing; 14. Controller; 15. Cover; 16. Connecting plate; 17. Flip-top cover; 18. Inhalation cylinder; 19. First exhaust valve; 20. Exhalation cylinder; 21. First intake valve; 22. Drive motor; 23. Bearing seat; 24. Moving piston; 25. Connecting rod; 26. Second intake valve; 27. Second exhaust valve; 28. Rubber connecting seat; 29. ​​Filter screen; 30. Gear ring; 31. Gear; 32. Ultraviolet disinfection lamp. Detailed Implementation

[0019] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0020] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] As attached Figure 1 To be continued Figure 9 As shown: This invention provides a respiratory recovery assist device for critically ill patients, including a support frame 1. The movable base plate 2 is installed at the bottom end of the support frame 1; A connecting plate 16 is fixed to the top of the support frame 1, and a cover 15 is installed on the top of the connecting plate 16. A controller 14 is installed on one side of the top of the cover 15, and a flip cover 17 is rotatably connected to one side of the cover 15. The outer shell 13 is installed on one side of the top of the cover 15, and an ultraviolet disinfection lamp 32 is fixed inside the top of the outer shell 13. A filter screen 29 is detachably installed inside the outer shell 13, and a rubber connecting seat 28 connected to the filter screen 29 is installed at the bottom inside the outer shell 13. The loading and unloading structure 8 is located on one side of the housing 13 and is used for quick replacement of the first exhaust diaphragm valve 19. An air guiding unit, located on one side of the cover 15, is used to transport airflow; The suction cylinder 18 is installed on one side inside the cover 15, and a first exhaust valve 19 is installed on one side of the suction cylinder 18, and a second intake valve 26 is installed at the top of the suction cylinder 18. The exhalation pump 20 is installed on the other side inside the cover 15, and a first air intake valve 21 is installed on one side of the exhalation pump 20, and a second exhaust valve 27 is installed on the top of the exhalation pump 20. The movable piston 24 is slidably connected inside the inhalation cylinder 18 and the exhalation cylinder 20 respectively, and a connecting rod 25 is installed on one side of the movable piston 24; The bearing housing 23 is installed on one side inside the connecting rod 25, and the drive motor 22 is installed on one side of the bearing housing 23. The flow control structure 6 is disposed on one side of the connecting rod 25. The flow control structure 6 includes a rotating plate 601 rotatably connected inside the bearing housing 23, a moving plate 602 rotatably connected to one side inside the rotating plate 601, a positioning frame 603 fixed to one side of the moving plate 602, a moving frame 604 fixed to one side of the rotating plate 601, an adjusting screw 605 threadedly connected inside the moving frame 604 and rotatably connected to the positioning frame 603, a transmission shaft 606 fixed between the rotating plates 601, and a guide assembly disposed on one side of the rotating plate 601. The cleaning structure 7 is located at the top inside the housing 15 and is used for backflushing and cleaning one of the filter screens 29.

[0023] In this embodiment, the drive motor 22 drives the rotating plate 601 to rotate via the gear 31 and the gear ring 30, causing the connecting rod 25 to drive the moving piston 24 to slide back and forth within the inhalation cylinder 18 and the exhalation cylinder 20, performing exhaust and suction actions. The gas inhaled by the patient is delivered to the three-way tube 11 through the inhalation circuit 3 and the inhalation valve 10, and then supplied to the patient for inhalation through the mask 12. The patient's exhaled gas enters the exhalation circuit 4 through the exhalation valve 9, forming a complete airflow cycle. The air inhaled and exhaled by the device is filtered by the filter screen 29, which can be quickly disassembled and assembled through the mounting and disassembling structure 8. The ultraviolet disinfection lamp 32 can disinfect the environment inside the outer shell 13. The position of the device can be moved by pushing the connecting plate 16 to move the base plate 2.

[0024] Preferably, the air guiding unit includes a fixed guiding assembly including a positioning rod 607 installed on one side of the connecting rod 25, a second guide groove 609 opened inside the rotating plate 601 and slidably connected to the positioning rod 607, and a first guide groove 608 opened inside the moving plate 602 and slidably connected to the positioning rod 607.

[0025] In this embodiment, by rotating the adjusting screw 605, the misalignment between the first guide groove 608 and the second guide groove 609 is adjusted, the position of the positioning rod 607 in the first guide groove 608 and the second guide groove 609 is changed, and the connection distance between the connecting rod 25 and the rotating plate 601 is adjusted, thereby changing the reciprocating stroke of the moving piston 24 and realizing the control of respiratory flux.

[0026] Preferably, a gear 31 is installed at the end of the output shaft of the drive motor 22, and a gear ring 30 meshing with the gear 31 is installed on the outer side of one set of rotating plates 601.

[0027] In this embodiment, the rotating plate 601 is precisely driven to rotate by the meshing of gear 31 and gear ring 30.

[0028] Preferably, the movable frame 604 passes through the movable plate 602 and is connected to the rotating plate 601, and the rotating plate 601 is symmetrically distributed on the vertical center of the movable frame 604.

[0029] In this embodiment, when the adjusting screw 605 is rotated, the movable frame 604 facilitates the movement of the movable plate 602 within the rotating plate 601.

[0030] Preferably, the outer wall of the adjusting screw 605 is provided with an external thread, and the interior of the moving frame 604 is provided with an internal thread that cooperates with the external thread.

[0031] In this embodiment, the deflection angle of the moving plate 602 within the rotating plate 601 is precisely adjusted by adjusting the thread engagement structure between the external thread of the screw 605 and the internal thread of the moving frame 604.

[0032] Preferred: The cleaning structure 7 includes a semi-toothed ring 704 fixed to the outside of the rotating plate 601, a rack 703 meshing with the top of the semi-toothed ring 704, a slide rail 709 fixed to the top of the inside of the cover 15 and slidably connected to the rack 703, a moving rod 707 fixed to one side of the rack 703, a cleaning piston 706 fixed to one side of the moving rod 707, a cylinder 701 sleeved on the outside of the cleaning piston 706, a return spring 708 installed on one side of the inside of the cylinder 701 and connected to the cleaning piston 706, a connecting pipe 705 installed on the top of the cylinder 701, and an annular nozzle 702 sleeved on the outside of the second air intake diaphragm valve 26 and connected to the connecting pipe 705.

[0033] In this embodiment, the half-tooth ring 704 drives the rack 703 to slide, which in turn drives the cleaning piston 706 to slide, causing the cylinder 701 to draw in gas. When the half-tooth ring 704 and the rack 703 are misaligned, the return spring 708 returns to its original position and pushes the cleaning piston 706 to slide to the left, so that the gas is sprayed out from the annular nozzle 702 through the connecting pipe 705 to backflush and clean the filter screen 29.

[0034] Preferably, the cleaning piston 706 forms a telescopic structure with the cylinder 701 via the return spring 708, and the moving rod 707 extends to the outside of the cylinder 701 and is connected to the rack 703.

[0035] In this embodiment, when the semi-tooth ring 704 drives the rack 703 to move horizontally, the moving rod 707 simultaneously drives the cleaning piston 706 to move to the right to draw in air and compresses the return spring 708. After misalignment, the return spring 708 resets and pushes the cleaning piston 706 to move to the left to release air, thereby achieving intermittent backflushing cleaning of the filter screen 29.

[0036] Preferred: The loading and unloading structure 8 includes a connecting hinge 803 installed at the top of one side of the cover 15, a flip plate 801 installed at the rotating end of the connecting hinge 803, an electric telescopic rod 804 rotatably connected to one side of the flip plate 801 and rotatably connected to the outer casing 13, a mounting base 802 fixed inside one side of the flip plate 801, and a mounting plate 805 fixed at the bottom of the filter screen 29.

[0037] In this embodiment, the filter screen 29 is removed by pushing the flip plate 801 to flip by the electric telescopic rod 804, so that the filter screen 29 leaves the inside of the housing 13 and the mounting plate 805 is pulled upward to leave the inside of the mounting base 802.

[0038] Preferably, the mounting plate 805 and the mounting base 802 form a plug-in structure, and the mounting plate 805 and the rubber connecting base 28 are located on the same vertical center line.

[0039] In this embodiment, the plug-in structure of the mounting plate 805 and the mounting base 802 facilitates quick assembly and disassembly of the filter screen 29, and the coaxiality of the mounting plate 805 and the rubber connecting base 28 ensures that the filter screen 29 is installed in a sealed manner.

[0040] Preferably, the air guiding unit includes a heating humidifier 5 fixed inside one side of the support frame 1 and connected at the input end to the first exhaust diaphragm valve 19, an inhalation circuit 3 detachably installed at the output end of the heating humidifier 5, an inhalation valve 10 installed at the top of the inhalation circuit 3, an exhalation circuit 4 detachably installed on one side of the first intake diaphragm valve 21, an exhalation valve 9 installed at the top of the exhalation circuit 4, a three-way tube 11 fixed at the top of the exhalation valve 9 and the inhalation valve 10, and a mask 12 installed at the top of the three-way tube 1.

[0041] In this embodiment, the gas discharged through the first exhaust valve 19 is heated and humidified by the heating humidifier 5 to improve the patient's inhalation comfort. The inhalation circuit 3 and the expiration circuit 4 are detachable for easy replacement and maintenance. The inhalation valve 10 and the expiration valve 9 precisely regulate the airflow. The three-way tube 11 merges the airways. The mask 12 delivers the processed gas to the patient to ensure the respiratory recovery effect.

[0042] The specific method of using this invention is as follows: The drive motor 22 is started, and then the rotating plate 601 is rotated through the meshing of gear 31 and gear ring 30. Simultaneously, the rotating plate 601 drives the moving piston 24 to slide back and forth within the inhalation cylinder 18 and the expiration cylinder 20 via the connecting rod 25. When the patient inhales, one set of moving pistons 24 slides to the left within the inhalation cylinder 18, while the second inhalation valve 26 closes and the first exhaust valve 19 opens, allowing gas to be discharged through the first exhaust valve 19. Simultaneously, the heating and humidifying device 5 heats and humidifies the gas discharged through the first exhaust valve 19, and then delivers it to the three-way tube 11 through the inhalation circuit 3 and inhalation valve 10, and then to the patient for inhalation through the mask 12. During this process, another set of moving pistons 24 slides to the left within the expiration cylinder 20, while the first inhalation valve 21 closes and the second exhaust valve 26 opens. When valve 27 opens, the gas inside the exhalation cylinder 20 is expelled. When the patient exhales, the moving piston 24 slides to the right inside the inhalation cylinder 18, the second inhalation valve 26 opens, and the first exhaust valve 19 closes, allowing gas to enter the inhalation cylinder 18. At the same time, the moving piston 24 slides inside the exhalation cylinder 20, the first inhalation valve 21 opens, and gas enters the exhalation cylinder 20. The second exhaust valve 27 closes, and the patient's exhaled gas enters the exhalation circuit 4 through the exhalation valve 9, and then enters the exhalation cylinder 20 through the first inhalation valve 21, forming a complete airflow cycle. The air inhaled and exhaled by the device is filtered by the filter screen 29, which can be quickly disassembled and assembled through the detachable structure 8. The ultraviolet disinfection lamp 32 can disinfect the environment inside the outer shell 13. The position of the device can be moved by pushing the connecting plate 16 and moving the base plate 2. The drive motor 22 drives the gear ring 30 to rotate via the gear 31, which in turn drives one set of rotating plates 601 to rotate. At the same time, this set of rotating plates 601 drives two sets of rotating plates 601 to rotate synchronously via the transmission shaft 606. The rotating plates 601 drive the connecting rod 25 to move via the positioning rod 607, so that the connecting rod 25 drives the moving piston 24 to reciprocate to assist inhalation and exhalation. By rotating the adjusting screw 605, the moving frame 604 is moved, adjusting the angle of the moving plate 602 in the rotating plate 601, adjusting the misalignment between the first guide groove 608 and the second guide groove 609, changing the position of the positioning rod 607 in the first guide groove 608 and the second guide groove 609, and thus adjusting the connection distance between the connecting rod 25 and the rotating plate 601, changing the reciprocating stroke of the moving piston 24, and realizing the control of respiratory flux. When the rotating plate 601 rotates, the semi-toothed ring 704 on the outer side of the rotating plate 601 meshes with the rack 703, causing the rack 703 to slide on the slide rail 709. At the same time, the rack 703 drives the cleaning piston 706 to slide inside the cylinder 701 via the moving rod 707. During the process of the semi-toothed ring 704 meshing with the rack 703, the cleaning piston 706 slides to the right, and the cylinder 701 draws in gas. At the same time, the return spring 708 is compressed. When the semi-toothed ring 704 and the rack 703 are misaligned, the return spring 708 returns to its original position and pushes the cleaning piston 706 to slide to the left, so that the gas is sprayed out from the annular nozzle 702 through the connecting pipe 705 to backflush and clean the filter screen 29. Extending the electric telescopic rod 804 pushes the flip plate 801 to rotate around the connecting hinge 803. Then, the flip plate 801 drives the mounting base 802 to rotate, causing the mounting plate 805 to separate from the rubber connecting seat 28 and the filter screen 29 to leave the inside of the housing 13. At this time, pulling the mounting plate 805 upwards to leave the inside of the mounting base 802 allows the filter screen 29 to be removed. During installation, insert the mounting plate 805 at the bottom of the filter screen 29 into the mounting base 802. By starting the electric telescopic rod 804 to retract, the flip plate 801 is reset, making the mounting plate 805 tightly connected to the rubber connecting seat 28, thus completing the installation of the filter screen 29.

[0043] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A respiratory recovery assist device for critically ill patients, comprising a support frame (1), characterized in that... ； The movable base plate (2) is installed at the bottom end of the support frame (1); A connecting plate (16) is fixed to the top of the support frame (1), and a cover (15) is installed on the top of the connecting plate (16). A controller (14) is installed on one side of the top of the cover (15), and a flip cover (17) is rotatably connected to one side of the cover (15). The outer shell (13) is installed on one side of the top of the cover (15), and an ultraviolet disinfection lamp (32) is fixed inside the top of the outer shell (13). A filter screen (29) is detachably installed inside the outer shell (13), and a rubber connecting seat (28) connected to the filter screen (29) is installed at the bottom inside the outer shell (13). The loading and unloading structure (8) is located on one side of the housing (13) and is used for quick replacement of the first exhaust diaphragm valve (19); An air guiding unit is located on one side of the cover (15) and is used to transport airflow; An air intake cylinder (18) is installed on one side inside the housing (15), and a first exhaust valve (19) is installed on one side of the air intake cylinder (18), and a second intake valve (26) is installed at the top of the air intake cylinder (18). An exhalation pump (20) is installed on the other side inside the cover (15), and a first inlet valve (21) is installed on one side of the exhalation pump (20), and a second exhaust valve (27) is installed on the top of the exhalation pump (20). The movable piston (24) is slidably connected inside the inhalation cylinder (18) and the exhalation cylinder (20), and a connecting rod (25) is installed on one side of the movable piston (24). A bearing housing (23) is installed on one side inside the connecting rod (25), and a drive motor (22) is installed on one side of the bearing housing (23). A flow control structure (6) is provided on one side of the connecting rod (25). The flow control structure (6) includes a rotating plate (601) rotatably connected inside the bearing seat (23), a moving plate (602) rotatably connected to one side inside the rotating plate (601), a positioning frame (603) fixed to one side of the moving plate (602), a moving frame (604) fixed to one side of the rotating plate (601), an adjusting screw (605) threadedly connected inside the moving frame (604) and rotatably connected to the positioning frame (603), a transmission shaft (606) fixed between the rotating plates (601), and a guide assembly provided on one side of the rotating plate (601). The cleaning structure (7) is located at the top inside the housing (15) and is used to backflush and clean one of the filter screens (29).

2. The respiratory recovery assist device for critically ill patients according to claim 1, characterized in that: The air guiding unit includes a fixed guiding assembly including a positioning rod (607) installed on one side of the connecting rod (25), a second guide groove (609) opened inside the rotating plate (601) and slidably connected to the positioning rod (607), and a first guide groove (608) opened inside the moving plate (602) and slidably connected to the positioning rod (607).

3. The respiratory recovery assist device for critically ill patients according to claim 1, characterized in that: The output shaft end of the drive motor (22) is equipped with a gear (31), and a gear ring (30) meshing with the gear (31) is installed on the outer side of one of the rotating plates (601).

4. The respiratory recovery assist device for critically ill patients according to claim 1, characterized in that: The movable frame (604) passes through the movable plate (602) and is connected to the rotating plate (601), and the rotating plate (601) is symmetrically distributed at the vertical center of the movable frame (604).

5. The respiratory recovery assist device for critically ill patients according to claim 1, characterized in that: The adjusting screw (605) has an external thread on its outer side wall, and the movable frame (604) has an internal thread that cooperates with the external thread.

6. The respiratory recovery assist device for critically ill patients according to claim 1, characterized in that: The cleaning structure (7) includes a semi-toothed ring (704) fixed to the outside of the rotating plate (601), a rack (703) meshing with the top of the semi-toothed ring (704), a slide rail (709) fixed to the top of the inside of the cover (15) and slidably connected to the rack (703), a moving rod (707) fixed to one side of the rack (703), a cleaning piston (706) fixed to one side of the moving rod (707), a cylinder (701) sleeved on the outside of the cleaning piston (706), a return spring (708) installed on one side of the inside of the cylinder (701) and connected to the cleaning piston (706), a connecting pipe (705) installed on the top of the cylinder (701), and an annular nozzle (702) sleeved on the outside of the second air intake diaphragm valve (26) and connected to the connecting pipe (705).

7. A respiratory recovery assist device for critically ill patients according to claim 6, characterized in that: The cleaning piston (706) forms a telescopic structure with the cylinder (701) through the return spring (708), and the moving rod (707) extends to the outside of the cylinder (701) and is connected to the rack (703).

8. The respiratory recovery assist device for critically ill patients according to claim 1, characterized in that: The loading and unloading structure (8) includes a connecting hinge (803) installed at the top of one side of the cover (15), a flip plate (801) installed at the rotating end of the connecting hinge (803), an electric telescopic rod (804) rotatably connected to one side of the flip plate (801) and rotatably connected to the outer shell (13), a mounting seat (802) fixed inside one side of the flip plate (801), and a mounting plate (805) fixed at the bottom of the filter screen (29).

9. A respiratory recovery assist device for critically ill patients according to claim 8, characterized in that: The mounting plate (805) and the mounting base (802) form a plug-in structure, and the mounting plate (805) and the rubber connecting base (28) are located on the same vertical center line.

10. A respiratory recovery assist device for critically ill patients according to claim 1, characterized in that: The air guiding unit includes a heating humidifier (5) fixed inside one side of the support frame (1) and connected to the first exhaust valve (19) at its input end; an inhalation circuit (3) detachably installed at the output end of the heating humidifier (5); an inhalation valve (10) installed at the top of the inhalation circuit (3); an exhalation circuit (4) detachably installed on one side of the first intake valve (21); an exhalation valve (9) installed at the top of the exhalation circuit (4); a three-way tube (11) fixed at the top of the exhalation valve (9) and the inhalation valve (10); and a mask (12) installed on the three-way tube (11).

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