Device for relieving complications after hematopoietic stem cell transplantation

Abstract

The invention discloses a hematopoietic stem cell transplantation complication relieving device which comprises an outer shell used for covering the nose and the mouth of a user and a contact pad body installed on the rear side face of the outer shell and used for being tightly attached to the face of the user, and an exhaust pipe used for exhausting exhaled air is fixed to the interior of the front side face of the outer shell in a penetrating mode. A carbon dioxide sensor is installed on the inner wall of the front side face of the outer shell, an exhaust control assembly used for controlling internal gas circulation is installed in the exhaust pipe, an air inlet pipe is fixed to the bottom face of the outer shell in a penetrating mode, and the lower end of the air inlet pipe is connected with the upper cover body. According to the complication relieving equipment after hematopoietic stem cell transplantation, the gas pressure in the outer shell is increased, so that a large amount of gas is inhaled into the nasal cavity of a user, the user actively inhales a large amount of gas at a time, and the breathing complication after hematopoietic stem cell transplantation is well relieved through the relieving equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of hematopoietic stem cell transplantation, in particular to a device for alleviating complications after hematopoietic stem cell transplantation. Background Art

[0002] Currently, hematopoietic stem cell transplantation can be used to treat some blood diseases and autoimmune diseases, so that the patient's hematopoietic and immune functions can return to normal. However, after hematopoietic stem cell transplantation, bacterial infection can cause some complications in the lungs, which in turn makes it difficult for the patient to breathe. Therefore, respiratory support equipment is needed to alleviate these complications.

[0003] The patent name disclosed in the prior art with the announcement number "CN113101480B" is "A device for alleviating complications after hematopoietic stem cell transplantation". It discloses that the swing of the wind measuring rod drives the swing of the crank rod, the crank rod drives the slide plate to slide, the slide plate squeezes the pressure ball, the pressure ball expands the top bag through the trachea, the top bag drives the touch plate to slide, the touch plate makes the driving wheel energized and rotated, the driving wheel rotates to drive the winding rope to move, the winding rope drives the winding wheel to move, the winding wheel releases the filter element under the action of the gear rod, and then the filter element and the shell are used in combination, so as to achieve the effect of automatically adjusting the filtration intensity according to the air quality. The device for alleviating complications after hematopoietic stem cell transplantation drives the speed regulating wheel to rotate by the rotation of the driving shaft, the speed regulating wheel drives the gear to rotate, the gear drives the driven shaft to rotate, the driven shaft drives the transmission shaft to rotate, the transmission shaft drives the suction fan to rotate through the transmission belt, and then the suction fan and the baffle are used in combination, so as to achieve the effect of improving the breathing quality of the user, and the scope of application is wider.

[0004] When in use, the device for alleviating complications after hematopoietic stem cell transplantation in the above-mentioned prior art achieves the effect of improving the user's breathing quality through the cooperation of the suction fan and the baffle net. Although the suction fan can generate a certain amount of gas to improve the user's breathing quality, the baffle net is arranged in a mesh shape, so when the user inhales, part of the gas in the shell will escape from the baffle net to the outside, so that the user actively inhales less gas at a time, and thus the device has poor effect in alleviating complications after hematopoietic stem cell transplantation. Therefore, we propose a device for alleviating complications after hematopoietic stem cell transplantation to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a device for alleviating complications after hematopoietic stem cell transplantation, so as to solve the problem raised in the above background technology that the mitigation equipment currently on the market has a mesh-shaped baffle, so when the user inhales, part of the gas in the outer shell will escape from the baffle to the outside, so that the user actively inhales less gas at a time, and thus the mitigation device has a poor effect on alleviating complications after hematopoietic stem cell transplantation.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for alleviating complications after hematopoietic stem cell transplantation, comprising an outer shell for covering the nose and mouth of a user, and a contact pad body installed on the rear side of the outer shell for tightly fitting with the face of the user, an exhaust pipe for discharging exhaled gas is fixedly penetrated inside the front side of the outer shell, a carbon dioxide sensor is installed on the inner wall of the front side of the outer shell, an exhaust control component for controlling the internal gas circulation is installed inside the exhaust pipe, an air intake pipe is fixedly penetrated on the bottom surface of the outer shell, the lower end of the air intake pipe is connected to the upper cover body, the lower part of the upper cover body is connected to the middle cover body, the lower part of the middle cover body is connected to the lower cover body, the lower part of the lower cover body is connected to the delivery pipe, and a filtering treatment component for gas treatment is installed inside the middle cover body.

[0007] Preferably, the contact pad body is made of rubber, and two fixing belts are installed on the rear side of the contact pad body, and the material of the fixing belts is the same as that of the elastic belt;

[0008] A one-way valve is installed inside the air inlet pipe to prevent the gas in the outer shell from being discharged to the outside through the air inlet pipe.

[0009] Furthermore, through the arrangement of the above structure, when the exhaust pipe is in a sealed closed state, the outer shell is also in a sealed state, and the gas in the outer shell can only enter the nasal cavity of the user, thereby effectively alleviating complications.

[0010] Preferably, the exhaust control assembly comprises a sealing blocking plate installed in the exhaust pipe on the front side of the outer shell, and the sealing blocking plate is arranged in a circular structure;

[0011] A micro motor is installed on the front side of the outer shell, and the output end below the micro motor penetrates the upper surface of the exhaust pipe and is connected to the sealing blocking plate. The output end below the micro motor is connected to the upper surface of the exhaust pipe through a sealing bearing.

[0012] Furthermore, through the arrangement of the above structure, the micro motor can drive the sealing blocking plate to rotate, so that the sealing blocking plate seals and closes or opens the inside of the exhaust pipe, thereby controlling whether the gas in the exhaust pipe is discharged.

[0013] Preferably, the carbon dioxide sensor is arranged above the rear end of the exhaust pipe.

[0014] Furthermore, through the arrangement of the above structure, the carbon dioxide sensor can detect the carbon dioxide concentration in the outer shell.

[0015] Preferably, the filtering treatment assembly comprises an activated carbon plate, a second filter plate and a first filter plate which are sequentially installed in the middle cover body from top to bottom through a sliding assembly.

[0016] Furthermore, through the arrangement of the above structure, the gas can be filtered in the middle cover body.

[0017] Preferably, the sliding assembly comprises a limiting sleeve rod installed in a groove provided in the inner wall of the middle cover body, and the highest point of the limiting sleeve rod is lower than the highest point of the middle cover body;

[0018] The upper part of the groove provided on the inner wall of the middle cover body is arranged in an opening shape;

[0019] Three sets of limit blocks are installed on the outside of the activated carbon plate, the second filter plate and the first filter plate. The limit blocks are inserted through the outside of the limit sleeve rods. The number of the limit sleeve rods and the number of the limit blocks are set in a ratio of 1:3. The heights of the limit blocks are greater than the heights of the activated carbon plate, the second filter plate and the first filter plate, so that there is a distance between the activated carbon plate, the second filter plate and the first filter plate.

[0020] Furthermore, through the arrangement of the above structure, the limiting block is used in conjunction with the limiting sleeve rod, so that the activated carbon plate, the second filter plate and the first filter plate can be pulled upward in sequence for disassembly, and the operation is convenient.

[0021] Preferably, the outer side surfaces of the activated carbon plate, the second filter plate and the first filter plate are all in close contact with the inner side wall of the middle cover body.

[0022] Furthermore, through the arrangement of the above-mentioned structure, the activated carbon plate, the second filter plate and the first filter plate in the middle cover body can filter and adsorb the gas well, making it easy for the treated gas to enter the user's nasal cavity to avoid respiratory infection.

[0023] Preferably, the upper cover body and the lower cover body are arranged in a "U"-shaped structure, the middle cover body is a cylindrical structure with a hollow interior, and a rotating rod is installed through the right interior of the upper cover body, the middle cover body and the lower cover body.

[0024] Furthermore, through the above-mentioned structural setting, the upper cover body and the lower cover body arranged in a "U" shape can be well used in conjunction with the middle cover body, so that the gas flows upward between the upper cover body, the lower cover body and the middle cover body and enters the outer shell.

[0025] Preferably, the rotating rod is rotatably connected to both the upper cover body and the lower cover body, and the rotating rod is fixedly connected to the middle cover body.

[0026] Furthermore, through the arrangement of the above-mentioned structure, when the rotating rod rotates, the middle cover body can be driven to rotate together, thereby separating the middle cover body from the upper cover body and the lower cover body, so that the upper part of the middle cover body can be exposed to the outside world, making it convenient for the later disassembly and replacement of the activated carbon plate, the second filter plate and the first filter plate in the middle cover body.

[0027] Preferably, a sealing protective pad is fixed to the lower surface of the upper cover body and the upper surface of the lower cover body. The sealing protective pad is made of rubber and is arranged in a circular ring shape. The upper and lower surfaces of the middle cover body are in close contact with the sealing protective pad.

[0028] Furthermore, through the setting of the above-mentioned structure, when the middle cover body rotates to the bottom of the upper cover body, the middle cover body will squeeze and fit the upper and lower sealing protection pads, thereby ensuring the sealing between the middle cover body, the upper cover body and the lower cover body, and preventing gas from leaking out from between the middle cover body, the upper cover body and the lower cover body.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: the device for alleviating complications after hematopoietic stem cell transplantation increases the gas pressure in the outer shell, so that a large amount of gas is inhaled into the nasal cavity of the user, so that the user actively inhales more gas at one time, so that the device can effectively alleviate the respiratory complications after hematopoietic stem cell transplantation. The specific contents are as follows:

[0030] (1) When the user inhales, the carbon dioxide sensor detects that the concentration of carbon dioxide is low. At this time, the carbon dioxide sensor transmits this signal to the central processing module installed inside the outer shell. The central processing module controls the micro motor to start working, and the micro motor drives the sealing baffle plate to rotate, thereby sealing the inside of the exhaust pipe, so that the outer shell is in a sealed state. The air inlet pipe continues to transport gas into the outer shell, which increases the gas pressure in the outer shell, so that a large amount of gas is inhaled into the user's nasal cavity. Therefore, the user actively inhales more gas at a time, so that the relief device can effectively relieve respiratory complications after hematopoietic stem cell transplantation;

[0031] (2) When the user exhales, the carbon dioxide sensor detects a high concentration of carbon dioxide, and the micromotor drives the sealing baffle plate to rotate, so that the exhaled gas can be discharged outward through the exhaust pipe;

[0032] (3) The rotating rod drives the middle cover body to rotate, thereby exposing the upper surface of the middle cover body, so that it is convenient to disassemble and replace the activated carbon plate, the second filter plate and the first filter plate in the middle cover body later, without separating the upper cover body and the air inlet pipe and the lower cover body and the delivery pipe, which is convenient to operate;

[0033] Furthermore, by sleeve-arranging the limiting block on the outer side of the limiting sleeve rod, it is convenient to take out the activated carbon plate, the second filter plate and the first filter plate from the middle cover body for replacement at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0035] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0036] Figure 3 It is a left sectional structural schematic diagram of the present invention;

[0037] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting column of the upper cover body, the middle cover body and the lower cover body of the present invention;

[0038] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0039] Figure 6 This is a schematic diagram of the three-dimensional structure of the cover body after rotation in the present invention;

[0040] Figure 7 It is a schematic diagram of the three-dimensional structure of the cover body and the activated carbon plate separated in the present invention.

[0041] In the figure: 1. outer shell; 2. exhaust pipe; 3. fixing belt; 4. carbon dioxide sensor; 5. micro motor; 6. upper cover; 7. air inlet pipe; 8. middle cover; 9. lower cover; 10. delivery pipe; 11. sealing protection pad; 12. contact pad; 13. sealing blocking plate; 14. rotating rod; 15. activated carbon plate; 16. second filter plate; 17. first filter plate; 18. limiting sleeve rod; 19. limiting block. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0043] See also Figure 1-Figure 7 , the present invention provides the following technical solutions:

[0044] Embodiment 1: The device for alleviating complications after hematopoietic stem cell transplantation in this embodiment can increase the amount of gas actively inhaled by the user at one time, so as to effectively alleviate the complications after hematopoietic stem cell transplantation. For the specific structure, refer to the attached Figure 1-Figure 4As shown, an outer shell 1 for covering the nose and mouth of a user, and a contact pad body 12 installed on the rear side of the outer shell 1 for tightly fitting with the face of the user, an exhaust pipe 2 for exhausting exhaled gas is fixedly penetrated inside the front side of the outer shell 1, a carbon dioxide sensor 4 is installed on the inner wall of the front side of the outer shell 1, an exhaust control component for controlling the internal gas circulation is installed inside the exhaust pipe 2, an air intake pipe 7 is fixedly penetrated through the bottom surface of the outer shell 1, a one-way valve is installed inside the air intake pipe 7, so that the gas in the outer shell 1 will not be discharged to the outside through the air intake pipe 7, the lower end of the air intake pipe 7 is connected to the upper cover body 6, the lower part of the upper cover body 6 is connected to the middle cover body 8, the lower part of the middle cover body 8 is connected to the lower cover body 9, and the lower part of the lower cover body 9 is connected to the delivery pipe 10;

[0045] A filtering treatment component for gas treatment is installed inside the middle cover body 8, the contact pad body 12 is made of rubber material, and two fixing belts 3 are installed on the rear side of the contact pad body 12. The material of the fixing belt 3 is the same as that of the elastic band. The exhaust control component includes a sealing blocking plate 13 installed in the exhaust pipe 2 on the front side of the outer shell 1. The sealing blocking plate 13 is arranged in a circular structure. A micro motor 5 is installed on the front side of the outer shell 1. The output end below the micro motor 5 passes through the upper surface of the exhaust pipe 2 and is connected to the sealing blocking plate 13. The output end below the micro motor 5 is connected to the upper surface of the exhaust pipe 2 through a sealing bearing, and the carbon dioxide sensor 4 is arranged at the upper position of the rear end of the exhaust pipe 2.

[0046] The filtering treatment component includes an activated carbon plate 15, a second filter plate 16 and a first filter plate 17 which are installed in the middle cover body 8 through a sliding component from top to bottom. The sliding component includes a limiting sleeve rod 18 installed in a groove opened in the inner wall of the middle cover body 8. The highest point of the limiting sleeve rod 18 is lower than the highest point of the middle cover body 8. The upper part of the groove opened in the inner wall of the middle cover body 8 is open. The outer sides of the activated carbon plate 15, the second filter plate 16 and the first filter plate 17 are all installed with three groups of limiting blocks 19. The positioning blocks 19 are inserted through and sleeved on the outer side of the limiting sleeve rod 18, and the number of the limiting sleeve rod 18 and the number of the limiting blocks 19 are arranged in a ratio of 1:3. The height of the limiting blocks 19 is greater than the height of the activated carbon plate 15, the second filter plate 16 and the first filter plate 17, so that there is a spacing between the activated carbon plate 15, the second filter plate 16 and the first filter plate 17, and the outer side surfaces of the activated carbon plate 15, the second filter plate 16 and the first filter plate 17 are in close contact with the inner wall of the middle cover body 8.

[0047] First, take the entire relief device to the use area, and then the user puts the fixing belt 3 on the head. Since the fixing belt 3 is made of elastic material, the fixing belt 3 can be applied to different positions of the outer shell 1 covering the nose and mouth of the user's face. At this time, the rubber contact pad 12 fits tightly with the facial skin to avoid air leakage in the later stage. Then connect the delivery pipe 10 to the external air supply mechanism, and then the gas enters the lower cover body 9 through the delivery pipe 10. The gas is then filtered and adsorbed through the first filter plate 17, the second filter plate 16 and the activated carbon plate 15 in the middle cover body 8. The treated gas enters the air inlet pipe 7 through the upper cover body 6, and then enters the outer shell 1 through the air inlet pipe 7. Then, the lung complications after hematopoietic stem cell transplantation can be alleviated to avoid the user's difficulty in breathing and aggravation of the disease.

[0048] When the user inhales, the carbon dioxide sensor 4 detects that the concentration of carbon dioxide in the outer shell 1 is low. At this time, the carbon dioxide sensor 4 transmits this signal to the central processing module installed inside the outer shell 1. After the central processing module analyzes and compares the data, the central processing module controls the output end of the micro motor 5 to rotate, and then the output end of the micro motor 5 drives the sealing blocking plate 13 to rotate 90°. Then, the outer side surface of the sealing blocking plate 13 is tightly fitted with the inner wall of the exhaust pipe 2, so that the sealing blocking plate 13 seals the inside of the exhaust pipe 2. At this time, the gas in the outer shell 1 will not be discharged from the exhaust pipe 2 to the outside, and then the outer shell 1 is in a sealed state. A one-way valve is installed in the air inlet pipe 7, so that the gas in the outer shell 1 can only enter the user's nasal cavity. When the air inlet pipe 7 continues to transport gas into the outer shell 1, the gas pressure in the outer shell 1 increases, so that a large amount of gas is inhaled into the user's nasal cavity, so the user actively inhales more gas at one time.

[0049] When the user exhales, the carbon dioxide sensor 4 detects that the concentration of carbon dioxide in the outer shell 1 is high. At this time, the carbon dioxide sensor 4 transmits this signal to the central processing module installed inside the outer shell 1. Similarly, as shown above, the central processing module controls the output shaft of the micro motor 5 to continue to rotate 90°. At this time, the output shaft of the micro motor 5 drives the sealing blocking plate 13 to rotate 90°. At this time, the outer side surface of the sealing blocking plate 13 is not in contact with the inner wall of the exhaust pipe 2. Then, part of the carbon dioxide exhaled by the user in the outer shell 1 can be discharged outward through the exhaust pipe 2. This operation is repeated. After using the relief device for a period of time, the relief device can effectively alleviate the respiratory complications after hematopoietic stem cell transplantation and improve the patient's breathing comfort.

[0050] Embodiment 2: The device for alleviating complications after hematopoietic stem cell transplantation in this embodiment is based on the embodiment 1. The activated carbon plate 15, the second filter plate 16 and the first filter plate 17 in the middle cover 8 can be replaced without disassembling the middle cover 8. The specific structure is shown in the attached Figure 5 -Attached Figure 7 As shown, the upper cover body 6 and the lower cover body 9 are arranged in a "U" shape structure, the middle cover body 8 is a cylindrical structure with a hollow interior, and a rotating rod 14 is installed through the right side interior of the upper cover body 6, the middle cover body 8 and the lower cover body 9. The rotating rod 14 is rotatably connected to both the upper cover body 6 and the lower cover body 9, and the rotating rod 14 is fixedly connected to the middle cover body 8. A sealing protection pad 11 is fixed to the lower surface of the upper cover body 6 and the upper surface of the lower cover body 9. The sealing protection pad 11 is made of rubber material and is arranged in a circular ring shape. The upper and lower surfaces of the middle cover body 8 are in close contact with the sealing protection pad 11.

[0051] When it is necessary to replace the activated carbon plate 15, the second filter plate 16 and the first filter plate 17 in the middle cover body 8, it is only necessary to manually rotate the rotating rod 14 by 180°. At this time, the rotating rod 14 drives the middle cover body 8 to rotate together, so that the upper surface of the middle cover body 8 is exposed. Then, the activated carbon plate 15, the second filter plate 16 and the first filter plate 17 can be manually taken out from the middle cover body 8 in turn for replacement. At this time, the limiting blocks 19 on the outer sides of the activated carbon plate 15, the second filter plate 16 and the first filter plate 17 slide on the outer sides of the limiting sleeve rod 18. Through the setting of the limiting blocks 19 and the limiting sleeve rod 18, it is not only convenient to stably install the activated carbon plate 15, the second filter plate 16 and the first filter plate 17 in the middle cover body 8, but also convenient to disassemble the activated carbon plate 15, the second filter plate 16 and the first filter plate 17 at a later time, which is convenient to operate, saves time and effort, and completes a series of work.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for alleviating complications after hematopoietic stem cell transplantation, comprising an outer shell (1) for covering the nose and mouth of a user, and a contact pad (12) mounted on the rear side of the outer shell (1) for closely fitting with the face of the user; Features: An exhaust pipe (2) for exhausting exhaled gas is fixedly inserted into the front side of the outer shell (1), and a carbon dioxide sensor (4) is installed on the inner wall of the front side of the outer shell (1); An exhaust control component for controlling the flow of gas inside the exhaust pipe (2) is installed inside the exhaust pipe (2); An air intake pipe (7) is fixedly passed through the bottom surface of the outer shell (1), the lower end of the air intake pipe (7) is connected to the upper cover body (6), and the lower part of the upper cover body (6) is connected to the middle cover body (8); The lower part of the middle cover body (8) is connected to the lower cover body (9), and the lower part of the lower cover body (9) is connected to the conveying pipe (10); A filtering and processing assembly for treating gas is installed inside the middle cover body (8).

2. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 1, characterized in that: The contact pad body (12) is made of rubber material, and two fixing belts (3) are installed on the rear side of the contact pad body (12), and the material of the fixing belts (3) is the same as that of the elastic belt; A one-way valve is installed inside the air inlet pipe (7), so that the gas in the outer shell (1) will not be discharged to the outside through the air inlet pipe (7).

3. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 1, characterized in that: The exhaust control assembly comprises a sealing blocking plate (13) installed in the exhaust pipe (2) on the front side of the outer shell (1), and the sealing blocking plate (13) is arranged in a circular structure; A micro motor (5) is installed on the front side of the outer shell (1); the output end below the micro motor (5) penetrates the interior of the upper surface of the exhaust pipe (2) and is connected to the sealing blocking plate (13); the output end below the micro motor (5) is connected to the interior of the upper surface of the exhaust pipe (2) via a sealing bearing.

4. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 1, characterized in that: The carbon dioxide sensor (4) is arranged at a position above the rear end of the exhaust pipe (2).

5. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 1, characterized in that: The filtering and processing assembly comprises an activated carbon plate (15), a second filtering plate (16) and a first filtering plate (17) which are sequentially installed in the middle cover body (8) through a sliding assembly from top to bottom.

6. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 5, characterized in that: The sliding assembly comprises a limiting sleeve rod (18) installed in a groove formed in the inner wall of the middle cover body (8), wherein the highest point of the limiting sleeve rod (18) is lower than the highest point of the middle cover body (8); The upper part of the groove formed on the inner side wall of the middle cover body (8) is arranged in an opening shape; Three groups of limit blocks (19) are installed on the outer sides of the activated carbon plate (15), the second filter plate (16) and the first filter plate (17). The limit blocks (19) are inserted through and sleeved on the outer sides of the limit sleeve rods (18). The number of the limit sleeve rods (18) and the number of the limit blocks (19) are arranged in a ratio of 1:

3. The height of the limit blocks (19) is greater than the height of the activated carbon plate (15), the second filter plate (16) and the first filter plate (17), so that there is a spacing between the activated carbon plate (15), the second filter plate (16) and the first filter plate (17).

7. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 6, characterized in that: The outer side surfaces of the activated carbon plate (15), the second filter plate (16) and the first filter plate (17) are all in close contact with the inner side wall of the middle cover body (8).

8. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 1, characterized in that: The upper cover body (6) and the lower cover body (9) are arranged in a "U"-shaped structure, the middle cover body (8) is in a cylindrical structure with a hollow interior, and a rotating rod (14) is installed through the right interior of the upper cover body (6), the middle cover body (8) and the lower cover body (9).

9. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 8, characterized in that: The rotating rod (14) is rotatably connected to both the upper cover body (6) and the lower cover body (9), and the rotating rod (14) is fixedly connected to the middle cover body (8).

10. The device for alleviating complications after hematopoietic stem cell transplantation according to claim 1, characterized in that: A sealing protective pad (11) is fixed to the lower surface of the upper cover body (6) and the upper surface of the lower cover body (9); the sealing protective pad (11) is made of rubber and is arranged in a circular ring shape; the upper and lower surfaces of the middle cover body (8) are in close contact with the sealing protective pad (11).

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