An alveolar lavage device for patients with severe pneumonia

Abstract

The present invention discloses an alveolar lavage device for patients with severe pneumonia, relating to the technical field of medical devices, comprising a bronchoscope main body, one end of which is connected to a water outlet for outputting physiological saline, and a lens for remotely viewing the lungs, comprising: a chamber provided in the bronchoscope main body, two through ports provided on one side of the chamber, a gap between the two through ports, the through ports being connected to the chamber, and an air bag tube, which is sleeved on the bronchoscope main body, and one end of the air bag tube is inserted into one of the through ports; in the present invention, the operating end of the bronchoscope main body is provided with a chamber and a through port, the air bag tube enters the chamber through the through port to form a closed loop in an arc shape, the rotation of the rotating rod drives the belt to circulate, and the belt drives the air bag tube to circulate together, so that various areas of the air bag tube pass through the through port in turn, the lubricant of the accommodating frame is sprayed to the through port through the nozzle, and different areas of the air bag tube are sprayed with lubricant when passing through the through port, thereby realizing the application of the lubricant.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an alveolar lavage device for patients with severe pneumonia. Background Art

[0002] Bronchoalveolar lavage is a method of diagnosing and treating lung diseases by injecting liquid into the bronchoalveoli and then aspirating it. Generally, a fiber bronchoscope is inserted into a certain section of the bronchus, 37°C saline is injected, and then aspirated with low negative pressure. The lavage fluid can be used for cellular, microbiological, immune, and biochemical examinations to explore the cause and pathogenesis of lung diseases and assist in diagnosis. Repeated lavage can also promote the excretion of alveolar foreign matter, inflammatory or immune reaction products to achieve the purpose of treatment.

[0003] During the lavage process, the lens of the electronic bronchoscope must be kept in the proper position to prevent the lavage fluid from overflowing and contaminating the large airway secretions. Therefore, the lavage port needs to be fixed in the proper position of the bronchoscope to prevent the lavage port from being deformed by water pressure and puncturing the bronchus during lavage. To solve the above problem, in the prior art, an inflatable balloon is added to the end of the bronchoscope so that the balloon expands and fits the tracheal wall, thereby preventing the front end of the bronchoscope from swinging and puncturing the tracheal wall when delivering lavage fluid or withdrawing waste fluid.

[0004] Because the human respiratory mucosa is very fragile, especially the mucosa of the bronchi and lungs, a lubricant needs to be applied to the outer wall of the bronchoscope before it is inserted into the lungs. During the insertion process, if there is no lubricant, the friction between the bronchoscope and the mucosa will be large, which can easily cause damage to the mucosa such as abrasions and bleeding. Applying lubricant can effectively reduce this friction and protect the integrity of the respiratory mucosa. Therefore, the outer wall of the airbag added in the prior art also needs to be lubricated.

[0005] However, when the balloon enters the trachea and expands, the area of ​​the balloon increases, and the original lubricant cannot automatically increase and evenly cover the newly added surface, which inevitably leads to insufficient lubrication in some areas of the balloon. After the balloon is expanded, the area without lubricant comes into direct contact with the respiratory mucosa. During bronchoscopy, such as when adjusting the position, flushing or suctioning, the friction between the balloon and the mucosa increases, which can easily cause mucosal abrasions and bleeding, especially in the bronchi and lungs where the airway mucosa is inherently fragile.

[0006] If the airbag is inflated before the bronchoscope and airbag enter the lungs, and then lubricant is applied to the surface of the inflated airbag, it will be difficult to ensure that all the lubricant adheres to the surface of the airbag and does not get rubbed off or accumulate locally when the airbag is deflated. Moreover, when the airbag is deflated, more lubricant will remain in the wrinkles or gaps on the surface of the airbag. When the airbag just enters the trachea, this excess lubricant is likely to flow into the airway, increasing the risk of inhalation of foreign matter into the airway, and may even cause adverse consequences such as choking, coughing, and difficulty breathing. Summary of the Invention

[0007] The purpose of the present invention is to provide an alveolar lavage device for patients with severe pneumonia to solve the problems raised in the above background technology.

[0008] To solve the above technical problems, the present invention provides an alveolar lavage device for patients with severe pneumonia, comprising a bronchoscope body, one end of which is connected to a water outlet for outputting physiological saline, and a lens for remotely viewing the lungs, wherein the bronchoscope body has a chamber, one side of the chamber has two openings, a gap is formed between the two openings, and the openings are connected to the chamber.

[0009] The balloon tube is sleeved on the bronchoscope body, one end of the balloon tube is passed through one of the openings, passes through the cavity and exits from the other opening to communicate with the other end thereof, so that the first balloon tube forms a closed loop;

[0010] Two receiving frames are arranged on the bronchoscope body and correspond to the two openings respectively. The receiving frames are used to store lubricant. One end of the receiving frame corresponding to the opening is connected to a nozzle for spraying lubricant onto the airbag tube in the opening; the driving part is arranged in the area surrounded by the airbag tube and is used to drive the airbag tube to circulate along the outer wall of the bronchoscope body.

[0011] Furthermore, the driving part also includes a belt arranged in the ring opening surrounded by the airbag tube, the belt forms a closed ring along the side wall of the ring opening, and forms a belt with the same shape as the ring opening. A plurality of rotating rods are arranged at equal intervals in the area surrounded by the belt, the rotating rods are connected to the belt transmission, and the outer wall of the belt is fixedly connected to the inner wall of the ring opening surrounded by the airbag tube.

[0012] Furthermore, it also includes a receiving cavity, which is provided on the bronchoscope body, wherein both ends of the receiving cavity are respectively communicated with the two through ports, and two receiving frames are installed inside the receiving cavity, with a gap between the two receiving frames;

[0013] The two immersion parts are both arranged inside the accommodating cavity. Part of the immersion part extends to the inside of the through opening and abuts against the outer wall of the airbag tube. The end of the nozzle away from the accommodating frame is inserted into the immersion part.

[0014] Furthermore, the immersion part is arranged to be trapezoidal, the narrower end of the immersion part is located in the through opening, and the wider end is located inside the accommodating cavity. The end of the immersion part located inside the accommodating cavity is squeezed to be tightly attached to the inner wall of the accommodating cavity, and the outlet end of the nozzle extends into the area where the immersion part is contracted.

[0015] Furthermore, the bronchoscope body is provided with two infusion tubes, the infusion tubes are connected to the interior of the accommodating frame, and the outer wall of the accommodating frame is connected to the inner wall of the accommodating cavity; the accommodating frame is provided with an opening, one end of the nozzle extends to the inside of the opening, the outer wall of the nozzle is connected to the inner wall of the opening, and the nozzle is connected to the interior of the accommodating frame.

[0016] Furthermore, a fixing plate is installed on the inner wall of the chamber of the bronchoscope body. The fixing plate is arc-shaped and is located outside the water outlet and the lens. An airbag is installed on the outer wall of the fixing plate, and a sealed inner cavity is formed between the airbag and the fixing plate.

[0017] Furthermore, the bronchoscope body is provided with an air supply tube, one end of which is connected to the inner cavity and is used to transmit gas to the inner cavity through the air supply tube. The bronchoscope body is provided with a water supply tube connected to the water outlet and is used to transmit physiological saline to the water outlet.

[0018] Furthermore, the driving unit further includes two placement slots, which are provided on the bronchoscope body, and the two placement slots correspond horizontally to the two rotating rods. A micro DC motor is installed on the inner wall of the placement slot, and one end of the rotating rod extends through the bronchoscope body into the placement slot and is connected to the driving end of the micro DC motor.

[0019] The bronchoscope body is provided with a through slot, the belt is located inside the through slot, the bronchoscope body is further provided with a cavity communicated with the through slot, and one end of the rotating rod is rotatably connected to the inner wall of the cavity.

[0020] Furthermore, the bronchoscope body is provided with a plurality of slots, the rotating rod is located inside the slots, and a gap is left between the outer wall of the rotating rod and the inner wall of the slots.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the present invention, the operating end of the bronchoscope body has a chamber and a through-port. The airbag tube enters the chamber through the through-port to form a closed loop in an arc shape. The rotation of the rotating rod drives the belt to move in a circular motion, and then the belt drives the airbag tube to move in a circular motion together, so that various areas of the airbag tube pass through the through-port in turn. The lubricant of the containing frame is sprayed toward the through-port through the nozzle. Different areas of the airbag tube are sprayed with lubricant when passing through the through-port, thereby realizing the application of the lubricant.

[0023] 2. In the present invention, the lubricant flows out of the nozzle and enters the immersed part. The immersed part is soaked with the lubricant. When the airbag tube expands and squeezes the immersed part, the lubricant is squeezed out under the action of pressure and flows onto the airbag tube. The airbag tube can also be stained with the lubricant when it contacts the immersed part. The immersed part can prevent excess lubricant from flowing into the trachea and can also reduce the flow rate of the lubricant, allowing it to be more evenly dispersed and applied to the airbag.

[0024] 3. In the present invention, the wider end of the immersion portion is inside the accommodating cavity and is squeezed into a size similar to that of the narrow end due to the size of the accommodating cavity. Its outer wall is fixedly connected to the inner wall of the accommodating cavity. The wide end has smaller and tighter pores due to extrusion, and the internal pressure is high, which will hinder the flow of lubricant. The outlet end of the nozzle is in the squeezed area of ​​the immersion portion, which can suppress the outflow of lubricant and avoid the continuous outflow of excess lubricant before the end of the bronchoscope body reaches the correct position. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the external structure of the present invention;

[0026] Figure 2 Schematic diagram of the connection structure between the balloon tube and the bronchoscope body in the present invention;

[0027] Figure 3 Schematic diagram of the connection structure between the through port and the immersion part in the present invention;

[0028] Figure 4 Schematic diagram of the connection structure between the receiving frame and the nozzle in the present invention;

[0029] Figure 5 This is a schematic diagram of the connection structure between the receiving frame and the infusion tube in the present invention;

[0030] Figure 6 Schematic diagram of the connection structure between the water outlet and the water pipe in the present invention;

[0031] Figure 7 This is a schematic diagram of the connection structure between the through groove and the belt in the present invention;

[0032] Figure 8 This is a schematic diagram of the connection structure between the transfer rod and the belt in the present invention;

[0033] Figure 9 Schematic diagram of the connection structure between the accommodating cavity and the accommodating frame in the present invention;

[0034] Figure 10 Schematic diagram of the connection structure between the fixing plate and the airbag in the present invention;

[0035] Figure 11 Schematic diagram of the connection structure between the transfer rod and the micro DC motor in the present invention;

[0036] Figure 12Schematic diagram of the connection structure between the nozzle and the opening in the present invention;

[0037] Figure 13 It is a structural schematic diagram of the immersion part in the present invention.

[0038] In the figure: 1. Bronchoscope body;

[0039] 2. Airbag tube; 3. Through port; 4. Water outlet; 5. Lens; 6. Immersed part; 7. Accommodating chamber; 8. Accommodating frame; 9. Nozzle; 10. Fixing plate; 11. Airbag; 12. Inner cavity; 13. Slot; 14. Rotating rod; 15. Infusion tube; 16. Air pipe; 17. Water pipe; 18. Through slot; 19. Belt; 20. Cavity; 21. Micro DC motor; 22. Opening; 23. Placement slot. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] The present invention provides a technical solution:

[0042] See Figures 1-13 As shown, a bronchoalveolar lavage device for patients with severe pneumonia includes a bronchoscope body 1, one end of which is connected to a water outlet 4 for outputting physiological saline, and a lens 5 for remotely viewing the lungs. The bronchoscope body 1 includes a chamber, two openings 3 are opened on one side of the chamber, a gap is formed between the two openings 3, and the openings 3 are connected to the chamber.

[0043] The balloon tube 2 is sleeved on the bronchoscope body 1. One end of the balloon tube 2 passes through one of the openings 3, passes through the cavity, and exits from the other opening 3 to communicate with the other end thereof, so that the first balloon tube 2 forms a closed loop.

[0044] Two receiving frames 8 are arranged on the bronchoscope body 1, corresponding to the two openings 3 respectively. The receiving frames 8 are used to store lubricant. The end of the receiving frame 8 corresponding to the opening 3 is connected to a nozzle 9 for spraying lubricant onto the airbag tube 2 in the opening 3; the driving part is arranged in the area surrounded by the airbag tube 2, and is used to drive the airbag tube 2 to circulate along the outer wall of the bronchoscope body 1.

[0045] The operating end of the bronchoscope body 1 is provided with a chamber and two openings 3. The openings 3 allow the balloon tube 2 to enter the chamber. The water outlet 4 on the bronchoscope body 1 is used to deliver saline to the trachea inside the lungs for cleansing the lungs. The lens 5 allows medical staff to remotely observe the condition inside the lungs through the lens 5. The water outlet 4 and the lens 5 are both located at the operating end of the bronchoscope body 1.

[0046] like Figure 2 and Figure 3 From the perspective of the figure, the airbag tube 2 is sleeved on the operating end of the bronchoscope body 1, one end of the airbag tube 2 is inserted into one of the openings 3 to enter the cavity, and then extends out from the other opening 3. The airbag tube 2 forms a complete closed loop, so that the airbag tube 2 is placed in a crescent shape. The driving part drives the airbag tube 2 to move in a circular motion along the outer wall of the bronchoscope body 1, so that the areas of the airbag tube 2 pass through the opening 3 in turn. Lubricant is stored in the accommodating frame 8, and the lubricant in the accommodating frame 8 flows out through the nozzle 9. Since the nozzle 9 corresponds to the opening 3, the nozzle 9 will sprinkle the lubricant into the opening 3. Therefore, when different areas of the airbag tube 2 pass through the opening 3 in turn, the lubricant will also be sprayed onto the outer wall of the airbag tube 2, thereby realizing the application of lubricant to the airbag tube 2.

[0047] See Figure 4-11 The driving part also includes a belt 19 arranged in the ring opening surrounded by the airbag tube 2. The belt 19 forms a closed ring along the side wall of the ring opening, forming a belt 19 with the same shape as the ring opening. A plurality of rotating rods 14 are evenly spaced in the area surrounded by the belt 19. The rotating rods 14 are transmission-connected to the belt 19, and the outer wall of the belt 19 is fixedly connected to the inner wall of the ring opening surrounded by the airbag tube 2.

[0048] The plurality of rotating rods 14 are connected to the belt 19 for transmission. Figure 4 From the perspective of , multiple rotating rods 14 are arranged at equal intervals in a crescent shape according to the airbag tube 2, and the inner wall of the belt 19 is in close contact with the outer wall of the rotating rod 14. When the rotating rod 14 rotates, it will drive the belt 19 to move in a circle in one direction. The shape of the belt 19 is the same as the shape of the crescent-shaped ring formed by the airbag tube 2, and the belt 19 is located inside the ring. The outer wall of the belt 19 is fixedly connected to the inner wall of the ring. Therefore, when the belt 19 moves in a circle, it will drive the airbag tube 2 to move in a circle together.

[0049] See Figure 2-13 , further comprising an accommodating cavity 7, which is provided on the bronchoscope body 1, wherein both ends of the accommodating cavity 7 are respectively communicated with the two through ports 3, and two accommodating frames 8 are fixedly installed inside the accommodating cavity 7, with a gap between the two accommodating frames 8;

[0050] The two immersion parts 6 are both arranged inside the accommodating cavity 7. Part of the immersion part 6 extends to the inside of the through opening 3 and abuts against the outer wall of the airbag tube 2. The end of the nozzle 9 away from the accommodating frame 8 is inserted into the immersion part 6. Two nozzles 9 can be provided.

[0051] The lubricant flows out through the nozzle 9 and enters the immersion part 6. The immersion part 6 can be made of a nano sponge. The lubricant will soak the immersion part 6. When the airbag tube 2 is expanded, the airbag tube 2 will squeeze the immersion part 6. When the immersion part 6 is squeezed, the pore space inside the immersion part 6 is reduced. The lubricant will be squeezed out of the immersion part 6 under the action of pressure and flow from the surface and pores of the immersion part 6 to the airbag tube 2.

[0052] Moreover, when the immersion portion 6 is soaked with lubricant, the outer wall of the airbag tube 2 contacts the immersion portion 6, which will cause the lubricant on the immersion portion 6 to be smeared on the airbag tube 2. The presence of the immersion portion 6 can prevent excessive lubricant from flowing out of the nozzle 9, causing excess lubricant to flow into the trachea. The immersion portion 6 can reduce the flow rate of the lubricant, and the lubricant is dispersed on the immersion portion 6, so that the lubricant can be evenly applied to the airbag tube 2.

[0053] See Figure 2-13 The immersion portion 6 is arranged in a trapezoidal shape, with the narrower end of the immersion portion 6 located in the through opening 3 and the wider other end located inside the accommodating cavity 7. The end of the immersion portion 6 located inside the accommodating cavity 7 is squeezed to be tightly attached to the inner wall of the accommodating cavity 7, and the outlet end of the nozzle 9 extends to the area where the immersion portion 6 contracts.

[0054] The wider end of the immersion portion 6 is located inside the accommodating cavity 7. Due to the limited size of the accommodating cavity 7, the wider end of the immersion portion 6 is squeezed to the same size as the narrower end. Then, the outer wall of the immersion portion 6 is fixedly connected to the inner wall of the accommodating cavity 7. Since the end of the immersion portion 6 located inside the accommodating cavity 7 is squeezed, the internal pores become smaller and tighter, while the original pores at the narrow end are relatively larger and looser.

[0055] The wide end is compressed to a great extent and has a high internal pressure, which will hinder the flow of the lubricant, so that the lubricant in the nozzle 9 will not flow out easily. Figure 12 From the perspective of , because the outlet end of the nozzle 9 is located in the area where the immersion part 6 is squeezed, this part of the immersion part 6 can suppress the outflow of lubricant from the nozzle 9, thereby preventing the nozzle 9 from continuously outflowing lubricant before the end of the bronchoscope body 1 reaches the correct position, causing excess lubricant to flow out;

[0056] When the airbag tube 2 expands and squeezes the immersion part 6, the narrow end of the immersion part 6 will shrink and approach the wide end, and then the narrow end of the immersion part 6 will gradually approach the outlet end of the nozzle 9 and push the wide end of the immersion part 6 toward the accommodating frame 8. When the narrow end of the immersion part 6 approaches the outlet end of the nozzle 9, the lubricant will flow smoothly into the immersion part 6 and quickly soak the immersion part 6.

[0057] See Figure 5 and Figure 12 The bronchoscope body 1 is provided with two infusion tubes 15, which are communicated with the interior of the receiving frame 8, and the outer wall of the receiving frame 8 is fixedly connected to the inner wall of the receiving cavity 7;

[0058] The receiving frame 8 is provided with an opening 22 , one end of the nozzle 9 extends into the opening 22 , the outer wall of the nozzle 9 is fixedly connected to the inner wall of the opening 22 , and the nozzle 9 is communicated with the interior of the receiving frame 8 .

[0059] Since the bronchoscope body 1 itself needs to infuse normal saline into the trachea of ​​the patient's lungs, the interior of the bronchoscope body 1 itself has a channel for transmitting normal saline, and the other end of the channel is connected to an external syringe or infusion pump, etc., and the function of the infusion tube 15 is the same as that of the channel for transmitting normal saline. The infusion tube 15 is also used to transmit liquid, but is used to transmit lubricant. The infusion tube 15 can be separately connected to a container for storing lubricant. Therefore, one end of the infusion tube 15 is connected to the accommodating frame 8, and the other end is connected to the container for storing lubricant, so as to transport the lubricant to the accommodating frame 8 through the infusion tube 15;

[0060] The opening 22 provides a space for the nozzle 9 to be inserted into the receiving frame 8 , and the lubricant in the receiving frame 8 directly enters the nozzle 9 and is then transported into the immersion portion 6 by the nozzle 9 .

[0061] See Figure 4-10 A fixing plate 10 is fixedly installed on the inner wall of the chamber of the bronchoscope body 1. The fixing plate 10 is arc-shaped and is located outside the water outlet 4 and the lens 5. An airbag 11 is fixedly installed on the outer wall of the fixing plate 10, and a sealed inner cavity 12 is formed between the airbag 11 and the fixing plate 10.

[0062] like Figure 4From the perspective of the embodiment, the fixing plate 10 is bent into an arc shape. First, the purpose is not to affect the use of the water outlet 4 and the lens 5. Second, the airbag tube 2 is also bent in the chamber. Both ends of the airbag 11 are fixedly connected to the outer wall of the fixing plate 10, and the two sides of the airbag 11 are fixedly connected to the inner wall of the chamber. Therefore, a sealed inner cavity 12 is formed between the airbag 11 and the fixing plate 10. Air is pumped into the inner cavity 12 to expand the space of the inner cavity 12, and then the airbag 11 will expand. Since the fixing plate 10 is fixed, the expanded airbag 11 will be squeezed in the direction of the airbag tube 2, and there is gas inside the airbag tube 2 itself. When the airbag 11 continues to expand, it will squeeze the area of ​​the airbag tube 2 located in the chamber. After the area of ​​the airbag tube 2 located in the chamber is squeezed, the area of ​​the airbag tube 2 located outside the bronchoscope body 1 will expand.

[0063] After the airbag tube 2 is expanded, the airbag tube 2 will squeeze the immersed portion 6, causing the immersed portion 6 to release the lubricant. At the same time, the driving portion will also drive the airbag tube 2 to rotate, causing the airbag tube 2 to be squeezed and expanded during the rotation process.

[0064] See Figure 6 The bronchoscope body 1 is provided with an air supply tube 16, one end of which is connected to the inner cavity 12 and is used to transmit gas to the inner cavity 12 through the air supply tube 16. The bronchoscope body 1 is provided with a water supply tube 17 connected to the water outlet 4 and is used to transmit physiological saline to the water outlet 4.

[0065] One end of the water pipe 17 is connected to an external syringe or infusion pump, and the other end is connected to the water outlet 4, which is used to transport saline to the water outlet 4 and allow the saline to flow out of the water outlet 4. The air pipe 16 has the same principle as the water pipe 17, but the air pipe 16 is used to transport gas. Gas is transported to the inner cavity 12 through the air pipe 16 to expand the airbag 11. However, both the air pipe 16 and the water pipe 17 can generate suction. The water pipe 17 is used to suck back the saline, while the air pipe 16 sucks back the excess gas in the inner cavity 12 to de-expand the airbag 11.

[0066] See Figure 4-11 The driving part also includes two placement slots 23, which are provided on the bronchoscope body 1. The two placement slots 23 correspond horizontally to two of the rotating rods 14. A micro DC motor 21 is fixedly installed on the inner wall of the placement slot 23. One end of the rotating rod 14 penetrates the bronchoscope body 1 and extends into the placement slot 23, and is fixedly connected to the driving end of the micro DC motor 21.

[0067] The bronchoscope body 1 is provided with a through slot 18 , and the belt 19 is located inside the through slot 18 . The bronchoscope body 1 is also provided with a cavity 20 communicating with the through slot 18 , and one end of the rotating rod 14 is rotatably connected to the inner wall of the cavity 20 .

[0068] First, Figure 11 From the perspective of FIG, the bronchoscope body 1 is provided with two placement slots 23, which provide space for placing the micro DC motor 21. The micro DC motor 21 is selected to have a size that matches the bronchoscope body 1 so that the micro DC motor 21 can be fixed inside the placement slot 23. The micro DC motor 21 is used to drive the rotating rod 14 to rotate. There is a micro DC motor 21 inside each of the two placement slots 23.

[0069] like Figure 4 Looking at the arrangement of the four rotating rods 14, one micro DC motor 21 is connected to the upper left rotating rod 14, and the other micro DC motor 21 is connected to the upper right rotating rod 14. The two micro DC motors 21 synchronously drive the rotating rods 14 to rotate. When the rotating rods 14 rotate, they can drive the belt 19 to circulate along the through groove 18. When the belt 19 rotates, it also drives the airbag tube 2 to circulate, so that all areas of the airbag tube 2 pass through the through opening 3 in sequence, making it easier for the water-immersed portion 6 to apply lubricant to the outer wall of the airbag tube 2.

[0070] One end of each of the four rotating rods 14 is rotatably connected to the inner wall of the chamber. Two of the rotating rods 14 have both ends rotatably connected to the inner wall of the chamber. The other two rotating rods 14 connected to the micro DC motor 21 penetrate the bronchoscope body 1 and extend into the placement slot 23. The outer walls of the rotating rods 14 are rotatably connected to the bronchoscope body 1.

[0071] The through groove 18 provides a space for the belt 19 to circulate and move, and the outer wall of the belt 19 extends to the outside of the bronchoscope body 1 and is connected to the balloon tube 2. The cavity 20 also provides a space for the belt 19 to circulate and move, and at the same time provides a space for the rotating rod 14 to rotate. Figure 10 As can be seen, there is a gap between the outer wall of the rotating rod 14 and the inner wall of the cavity 20, so that the rotating rod 14 does not rub against the cavity 20 when rotating, and the airbag tube 2 is sleeved on the outer periphery of the through groove 18 and the belt 19;

[0072] The area where the rotating rod 14 contacts the belt 19 can be equipped with a circle of teeth around the circumference, and the inner wall of the belt 19 is also equipped with teeth at equal intervals, so that the rotating rod 14 can be connected to the belt 19 through the teeth, which can ensure the stability of the transmission between the rotating rod 14 and the belt 19. Figure 4 The middle belt 19 has the same shape and can be deformed, so the belt 19 can use a rubber rack, and the rotating rod 14 can be installed with a circle of teeth that are compatible with the belt 19 on the outer wall that contacts the belt 19, so that the rotating rod 14 can be engaged and connected with the belt 19, making the belt 19 more stable when it moves in a cycle.

[0073] See Figure 4-10The bronchoscope body 1 is provided with a plurality of slots 13 , and the rotating rod 14 is located inside the slot 13 , with a gap between the outer wall of the rotating rod 14 and the inner wall of the slot 13 .

[0074] The slot 13 provides a rotatable space for the rotating rod 14 , ensuring that the rotating rod 14 will not be hindered when rotating and that the rotating rod 14 will not rub against the bronchoscope body 1 .

Claims

1. A bronchoalveolar lavage device for patients with severe pneumonia, comprising a bronchoscope body (1), one end of which is connected to a water outlet (4) for outputting physiological saline, and a lens (5) for remotely viewing the lungs, characterized in that: include, A cavity is provided in the bronchoscope body (1), and two openings (3) are provided on one side of the cavity. A gap is provided between the two openings (3), and the openings (3) are communicated with the cavity. An air bag tube (2) is sleeved on the bronchoscope body (1), one end of the air bag tube (2) passes through one of the openings (3), passes through the cavity, and exits from the other opening (3) to communicate with the other end thereof, so that the air bag tube (2) forms a closed loop; Two receiving frames (8) are provided on the bronchoscope body (1) and correspond to the two openings (3) respectively. The receiving frames (8) are used to store lubricant. One end of the receiving frame (8) corresponding to the opening (3) is connected to a spray head (9) for spraying lubricant onto the air bag tube (2) in the opening (3); A driving portion, disposed within the area enclosed by the balloon tube (2), and configured to drive the balloon tube (2) to move cyclically along the outer wall of the bronchoscope body (1); The driving part also includes a belt (19) arranged in the ring opening surrounded by the airbag tube (2), the belt (19) forming a closed ring along the side wall of the ring opening, forming a belt (19) with the same shape as the ring opening, a plurality of rotating rods (14) are arranged at equal intervals in the area surrounded by the belt (19), the rotating rods (14) are connected to the belt (19) in a transmission manner, and the outer wall of the belt (19) is fixedly connected to the inner wall of the ring opening surrounded by the airbag tube (2); It also includes a receiving cavity (7) provided on the bronchoscope body (1), wherein both ends of the receiving cavity (7) are respectively communicated with the two through ports (3), and two receiving frames (8) are installed inside the receiving cavity (7), with a gap between the two receiving frames (8); The two immersion parts (6) are both arranged inside the accommodating cavity (7), and a part of the immersion part (6) extends to the inside of the through opening (3) and abuts against the outer wall of the airbag tube (2), and the end of the nozzle (9) away from the accommodating frame (8) is inserted into the immersion part (6); The immersion portion (6) is configured to be trapezoidal, with a narrower end of the immersion portion (6) located in the through opening (3) and a wider end located in the accommodating cavity (7). The end of the immersion portion (6) located in the accommodating cavity (7) is squeezed to be in close contact with the inner wall of the accommodating cavity (7), and the outlet end of the nozzle (9) extends to the area where the immersion portion (6) contracts.

2. The alveolar lavage device for patients with severe pneumonia according to claim 1, characterized in that: The bronchoscope body (1) is provided with two infusion tubes (15), the infusion tubes (15) are communicated with the interior of the accommodating frame (8), and the outer wall of the accommodating frame (8) is connected to the inner wall of the accommodating cavity (7); The accommodating frame (8) is provided with an opening (22), one end of the nozzle (9) extends into the interior of the opening (22), the outer wall of the nozzle (9) is connected to the inner wall of the opening (22), and the nozzle (9) is communicated with the interior of the accommodating frame (8).

3. The alveolar lavage device for patients with severe pneumonia according to claim 2, characterized in that: A fixing plate (10) is installed on the inner wall of the chamber of the bronchoscope body (1), and the fixing plate (10) is arc-shaped. The fixing plate (10) is located outside the water outlet (4) and the lens (5). An airbag (11) is installed on the outer wall of the fixing plate (10), and a sealed inner cavity (12) is formed between the airbag (11) and the fixing plate (10).

4. The alveolar lavage device for patients with severe pneumonia according to claim 3, characterized in that: The bronchoscope body (1) is provided with an air delivery tube (16), one end of which is in communication with the inner cavity (12) and is used to transmit gas to the inner cavity (12) through the air delivery tube (16). The bronchoscope body (1) is provided with a water delivery tube (17) in communication with the water outlet (4) and is used to transmit physiological saline to the water outlet (4).

5. The alveolar lavage device for patients with severe pneumonia according to claim 4, characterized in that: The driving portion further comprises two placement slots (23) which are arranged on the bronchoscope body (1), the two placement slots (23) corresponding horizontally to two of the rotating rods (14), the inner walls of the placement slots (23) being provided with micro DC motors (21), one end of the rotating rod (14) passing through the bronchoscope body (1) and extending into the placement slots (23), and being connected to the driving end of the micro DC motor (21); The bronchoscope body (1) is provided with a through slot (18), the belt (19) is located inside the through slot (18), and the bronchoscope body (1) is further provided with a cavity (20) communicating with the through slot (18), and one end of the rotating rod (14) is rotatably connected to the inner wall of the cavity (20).

6. The alveolar lavage device for patients with severe pneumonia according to claim 5, characterized in that: The bronchoscope body (1) is provided with a plurality of slots (13), the rotating rod (14) is located inside the slots (13), and a gap is left between the outer wall of the rotating rod (14) and the inner wall of the slots (13).

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