Body position drainage auxiliary device for respiratory medicine department

Abstract

The invention relates to a body position drainage assisting device for the respiratory medicine department, and belongs to the technical field of medical instruments, the body position drainage assisting device comprises a supporting plate, an arc-shaped protrusion is vertically arranged at the top of one end of the supporting plate, two supporting columns are arranged on the lower side of the end, close to the arc-shaped protrusion, of the supporting plate, and two upper limb arc-shaped lifting plates are arranged on the two supporting columns in a one-to-one correspondence mode; the upper limb arc-shaped lifting plates are arranged on the supporting column, openings of the upper limb arc-shaped lifting plates face upwards, the bottoms of the upper limb arc-shaped lifting plates are connected with the supporting column, and the distance between the center lines of the two upper limb arc-shaped lifting plates is gradually reduced from the side close to the arc-shaped protrusion to the other side. The two forearms of the upper limbs of the patient are placed in the upper limb arc-shaped lifting plates respectively, the chest and the parts above the chest of the patient are in an inclined downward posture so that body position drainage can be carried out, the chest of the patient is in a suspended state, deep breathing can be carried out for cooperation during body position drainage, and therefore the sputum excretion effect of body position drainage is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a postural drainage assist device for respiratory medicine. Background Technology

[0002] Sputum is a viscous substance secreted by the respiratory system, mainly composed of respiratory epithelial cells, secretions from glands, bacteria, dust, and dead cells. Its primary function is to clear foreign objects and bacteria from the respiratory tract. In a healthy state, sputum is relatively clear and in small amounts. However, during infections, allergies, or illnesses (such as colds, bronchitis, pneumonia, etc.), sputum may increase, change color, or become thicker. For respiratory patients with excessive, thick sputum that is difficult to expel through coughing, non-artificial airway suctioning is often used to prevent sputum plugs from obstructing the bronchi and impairing ventilation and gas exchange, which can lead to hypoxia and respiratory distress. However, non-artificial airway suctioning can only remove sputum from the shallow large airways and cannot remove sputum retained in the lower respiratory tract. Furthermore, suctioning can easily cause adverse reactions in patients, such as hypoxemia, atelectasis, airway spasm, and airway damage, resulting in poor effectiveness and safety in sputum removal from the lungs.

[0003] To address the inadequate expectoration of sputum from the lungs, the main current practice in respiratory medicine and related departments is postural drainage. Postural drainage utilizes the patient's lungs being positioned high, with the bronchial openings pointing downwards and in a low position. Gravity is used to drain the sputum secreted by the lungs. Simultaneously, the patient takes deep breaths, which increases the diameter of the bronchi and other airways, prompting the sputum to flow down the body position into the trachea under the influence of gravity. The patient then coughs up the sputum from the trachea, effectively expelling sputum deep within the lungs and avoiding adverse reactions during expectoration.

[0004] Because postural drainage requires patients to maintain a specific posture for a period of time, current methods primarily utilize drainage beds or positioning mats. The patient lies prone on the bed, and by adjusting the head or side tilt of the bed and using padding on the mat, the chest cavity is positioned higher than the head, allowing sputum from the inner lung to flow through the bronchi to the trachea. However, when patients lie prone on the drainage bed or mat, the chest is in close contact with the bed, resulting in significant external pressure on the chest cavity. This makes it difficult for patients to take deep breaths during postural drainage, reducing its effectiveness in expelling sputum.

[0005] Currently, existing drainage beds or positioning pads often have grooves or openings on the head side to reduce pressure on the patient's chest cavity. However, when the patient lies prone on the drainage bed or positioning pad, their chest is still supported, causing external pressure on the chest cavity and increasing respiratory resistance. This is especially true for patients with weakened respiratory capacity due to airway damage, who still find it difficult to take effective deep breaths during postural drainage, thus reducing the effectiveness of sputum removal. Summary of the Invention

[0006] In view of this, the present invention provides a postural drainage assist device for respiratory medicine to overcome the shortcomings of the prior art. The present invention enables the patient's chest cavity to remain relaxed and allows for deep breathing during postural drainage, thereby ensuring the sputum expectoration effect of postural drainage.

[0007] The technical solution of this invention is: a postural drainage assist device for respiratory medicine, comprising a tray, which is placed horizontally on the bed surface along the length of the nursing bed. An arc-shaped protrusion is vertically arranged at the top of one end of the tray, the center line of which is parallel to the width direction of the nursing bed. The arc-shaped protrusion is flush with the end face of the tray. The patient lies prone on the tray with their abdomen resting on the arc-shaped protrusion, and their chest is located on the outside of the arc-shaped protrusion. Two support columns are arranged on the lower side of the end of the tray near the arc-shaped protrusion, and are parallel to the length direction of the tray. The two support columns are parallel, with one end connected to the support plate. Two upper limb arc-shaped support plates are set on the two support columns one to one. The opening of the upper limb arc-shaped support plate faces upward and its bottom is connected to the support column. The distance between the center lines of the two upper limb arc-shaped support plates gradually decreases from the side closer to the arc-shaped protrusion to the other side. The patient's two forearms are placed in the upper limb arc-shaped support plates and abut against their inner bottom, so that the patient's chest and above are in a tilted downward position, so that the sputum in the patient's lungs can flow to the trachea by gravity.

[0008] Preferably, the support column is inclined downwards, and the distance between the side of the support column near the arc-shaped protrusion and the bed surface is greater than the distance between the other side of the support column and the bed surface.

[0009] Preferably, the tray is hollow inside and has a horizontal connecting shaft inside. The connecting shaft is located directly below the arc-shaped protrusion and is parallel to its center line. Both ends of the connecting shaft are fixedly connected to the tray. Two through slots are horizontally opened at the end of the tray near the arc-shaped protrusion. One end of each of the two support columns passes through the through slots and extends into the interior of the tray. The connecting shaft passes through the support columns and is rotatably connected to them. A drive mechanism is provided on the tray, and the output end of the drive mechanism is connected to the support columns.

[0010] Preferably, reinforcing rods are horizontally inserted into the two through slots and located directly below the support column. The support column is slidably connected to the tray along its length. The end of the support column near the arc-shaped protrusion abuts against the lower side of the support column. The output end of the drive mechanism is connected to the support column.

[0011] Preferably, a U-shaped limiting member is vertically fixed at one end of the reinforcing rod near the support column, and the U-shaped limiting member is fitted onto the support column from bottom to top and abuts against it.

[0012] Preferably, the inner bottom of the U-shaped limiting member is provided with a groove, and a roller is horizontally provided in the groove. The center line of the roller is perpendicular to the reinforcing rod. The two ends of the roller are rotatably connected to the inner wall of the groove, and the roller abuts against the lower side of the support column.

[0013] Preferably, a lower limb support plate is horizontally arranged on the top of the support plate and located on the horizontal section of the support plate. A pair of wedge blocks are vertically arranged directly above the two reinforcing rods. The height of the two wedge blocks gradually decreases or increases along the length of the reinforcing rods. One end of one wedge block away from its inclined surface is fixedly connected to the two reinforcing rods. A guide groove is vertically opened on the top of the support plate and communicates with its interior. The other end of the wedge block away from its inclined surface passes through the guide groove and is fixedly connected to the lower side of the lower limb support plate.

[0014] Preferably, an arc-shaped groove is formed on the upper side of the arc-shaped protrusion along its outline, and the arc-shaped groove extends vertically downward through the end face of the support plate on the side near the arc-shaped support plate of the upper limb.

[0015] Preferably, the depth of the arc-shaped groove gradually decreases on the side away from the arc-shaped support plate of the upper limb, so that the arc-shaped groove is flush with the top of the horizontal section of the support plate.

[0016] Preferably, the inner diameter of the upper limb arc-shaped support plate gradually decreases from one end near the support plate to the other end.

[0017] Compared with existing technologies, the present invention provides a postural drainage assistive device for respiratory medicine, which uses a support board, an arc-shaped protrusion, a support column, and an upper limb arc-shaped support plate in combination. The support board is placed on the nursing bed, and the patient lies prone on the support board with their abdomen against the arc-shaped protrusion, so that the patient's chest is located on the outside of the arc-shaped protrusion. Then, the patient's two forearms are placed in the upper limb arc-shaped support plate to support the patient's upper body, so that the patient's chest and above are in a tilted downward position for postural drainage. The patient's chest is in a suspended state, so that the patient's chest cavity remains relaxed and can take deep breaths to cooperate during postural drainage, thereby ensuring the sputum drainage effect. Attached Figure Description

[0018] Figure 1 This is a top view of the body positioning drainage auxiliary device of the present invention; Figure 2This is a front view of the body positioning drainage auxiliary device of the present invention; Figure 3 This is a side view of the body positioning drainage aid device of the present invention; Figure 4 This is the present invention. Figure 1 AA section view in the middle; Figure 5 This is the present invention. Figure 2 BB section view in the middle; Figure 6 This is the present invention. Figure 2 CC section view in the middle; Figure 7 This is the present invention. Figure 4 Enlarged diagram of point D in the diagram; Figure 8 This is a top view of the mounting plate of the present invention. Detailed Implementation

[0019] This invention provides a postural drainage assist device for respiratory medicine, which is described below in conjunction with... Figures 1 to 8 The present invention is illustrated by the structural diagram shown below.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this 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. Therefore, they should not be construed as limitations on this invention.

[0021] For respiratory patients, thick sputum retained in the lower respiratory tract, if not effectively expelled through spontaneous coughing, can easily form sputum plugs that obstruct the bronchi, impairing ventilation and gas exchange, leading to hypoxia and dyspnea. Clinically, non-artificial airway suctioning is commonly used as an intervention, but this method has certain limitations:

[0022] 1. Limited clearance range: It can only suction sputum from the superficial layers of the large airways and cannot effectively clear sputum located deep in the lower respiratory tract; 2. High operational risk: It can easily induce complications such as hypoxemia, airway mucosal damage, bronchospasm or atelectasis, which significantly affects the safety of respiratory sputum clearance treatment.

[0023] To overcome the aforementioned shortcomings, postural drainage has become a primary means of core sputum clearance intervention. Its principle involves adjusting the patient's position so that the target lung lobe is in a high position and the corresponding bronchial opening faces downwards. Gravity then promotes the migration of deep sputum from the lower respiratory tract towards the main airway. This is combined with deep breathing (to dilate the bronchial diameter) and effective coughing to achieve efficient sputum clearance. Compared to suctioning, this method can more thoroughly clear sputum and significantly reduces the risk of complications.

[0024] Current postural drainage relies on specialized drainage beds or positioning pads: the patient lies prone, and the bed's tilt angle or the pad's height is adjusted to elevate the chest and lower the head to meet gravity drainage requirements. However, in clinical practice, postural drainage using drainage beds or positioning pads has poor sputum clearance efficacy. Clinical observation has revealed that the reasons affecting the effectiveness of postural drainage for sputum clearance are as follows:

[0025] 1. Chest compression effect: The patient's chest and abdominal walls are in close contact with the supporting surface of the drainage bed or positioning pad, generating continuous pressure, which restricts chest expansion and makes it difficult to perform deep breathing. 2. Amplified limitations for special populations: For patients with weakened respiratory muscle strength (such as COPD, neuromuscular diseases), external pressure further increases the work of breathing, significantly weakening the effectiveness of deep breathing.

[0026] To address the aforementioned issues, existing drainage beds or positioning pads often incorporate grooves or openings near the head to reduce pressure on the patient's chest cavity. For example, patent application CN202322715736.4 discloses a novel prone positioning drainage pad that cushions and decompresses the patient's chest, reducing pressure and providing support, thus improving breathing and comfort. However, because the patient is in a prone position, this support still causes pressure on the chest, especially for patients with impaired respiratory function. This solution fails to fundamentally address the problem of limited chest movement, becoming a key factor restricting the effectiveness of postural drainage.

[0027] To address the aforementioned issues, this invention provides a postural drainage assistive device for respiratory medicine. This device utilizes a support plate, an arc-shaped protrusion, a support column, and an upper limb arc-shaped support plate. The support plate is placed on a nursing bed, with the patient lying prone on the support plate and their abdomen resting on the arc-shaped protrusion. This positions the patient's chest on the outer side of the protrusion. The patient's forearms are then placed into the upper limb arc-shaped support plate to support their upper body. This allows the patient's chest and upper body to be in a downward-sloping position for postural drainage, with the chest suspended in the air. This keeps the chest cavity relaxed, allowing for deep breathing during postural drainage and ensuring effective sputum removal.

[0028] The postural drainage assist device in this embodiment can be used not only in the respiratory medicine department to drain sputum from the lungs of patients with respiratory diseases, but also in related departments.

[0029] Reference Figure 1 , Figure 2 As shown, Figure 1 This is a top view of the body positioning drainage assistance device in this embodiment. Figure 2 This is a front view of the postural drainage assist device of this embodiment. A postural drainage assist device for respiratory medicine includes a support plate 1, which is placed horizontally on the bed surface along the length of the nursing bed. An arc-shaped protrusion 11 is vertically arranged at the top of one end of the support plate 1. The center line of the arc-shaped protrusion 11 is parallel to the width direction of the nursing bed, and the arc-shaped protrusion 11 is flush with the end face of the support plate 1. The patient lies prone on the support plate 1 with their abdomen resting on the arc-shaped protrusion 11, and the patient's chest is located on the outside of the arc-shaped protrusion 11. Two support columns 2 are arranged on the lower side of the end of the support plate 1 closest to the arc-shaped protrusion 11, and are aligned with the support plate. The length directions of the two support columns 1 are parallel to each other. One end of each of the two support columns 2 is connected to the support plate 1. Two upper limb arc-shaped support plates 3 are set on the two support columns 2 in a one-to-one correspondence. The opening of the upper limb arc-shaped support plate 3 faces upward and its bottom is connected to the support column 2. The distance between the center lines of the two upper limb arc-shaped support plates 3 gradually decreases from the side closer to the arc-shaped protrusion 11 to the other side. The two forearms of the patient's upper limb are placed in the upper limb arc-shaped support plates 3 and abut against their inner bottom, so that the patient's chest and above are in a tilted downward position, so that the sputum in the patient's lungs can flow to the trachea by gravity.

[0030] In this embodiment, the support plate 1 of the postural drainage auxiliary device is placed horizontally on the bed surface along the length of the nursing bed. When performing postural drainage, the respiratory medicine patient lies prone on the support plate 1, with the patient's abdomen resting on the arc-shaped protrusion 11 and the legs placed on the horizontal section of the support plate 1. The patient's chest and above are located on the outside of the arc-shaped protrusion 11. The patient's two forearms are then placed in the upper limb arc-shaped support plate 3. The support column 2 and the upper limb arc-shaped support plate 3 support the patient's chest and above, and the patient's chest and above are in a downward tilted position to meet the requirements of postural drainage. At the same time, the patient's chest is suspended, which keeps the patient's chest cavity relaxed and allows for deep breathing during postural drainage, thereby ensuring the sputum drainage effect of postural drainage.

[0031] The postural drainage assist device in the above embodiments can assist patients in postural drainage, so that the patient's posture meets the requirements of postural drainage, and at the same time, the patient can take deep breaths without resistance, ensuring the effectiveness of postural drainage in expelling sputum from the patient's lungs.

[0032] In addition, during use, the patient can cough up the sputum drained into the trachea after taking a deep breath in the above embodiment. The patient's head and mouth tissues are in a free state, which makes it convenient to accurately spit the coughed-up sputum into the sputum collection bucket for subsequent disinfection.

[0033] Specifically, due to the different body shapes of different patients, in the above embodiment, a groove 22 is provided on the upper side of the support column 2 along its length direction. A slider 23 is provided in the groove 22 and slides along its length direction. A screw 24 is passed through the slider 23 along the length direction of the groove 22. The screw 24 is threadedly connected to the slider 23. Both ends of the screw 24 are rotatably connected to the support column 2. A handwheel is fixedly provided at the end of the screw 24 away from the arc-shaped protrusion 11 that extends out of the support column 2. A column is vertically provided between the top of the slider 23 and the upper limb arc-shaped support plate 3. One end of the column is fixedly connected to the slider 23, and the other end is rotatably connected to the upper limb arc-shaped support plate 3 to adjust the included angle of the two upper limb arc-shaped support plates 3.

[0034] As a further optimization, in this embodiment, the support column 2 is inclined downward, and the distance between the side of the support column 2 closest to the arc-shaped protrusion 11 and the bed surface is greater than the distance between the other side and the bed surface.

[0035] In this embodiment, the support column 2 is set at an angle downwards. When the patient's two forearms are placed in the upper limb arc support plate 3 for support, not only is the patient's chest and above in an overall angled downwards, but the patient's chest and above are also stretched. This achieves that the patient's lungs, bronchi and trachea are angled downwards and located in the same straight line, further ensuring the effect of postural drainage using gravity to drain sputum.

[0036] Reference Figure 3 As shown, Figure 3 This is a side view of the body positioning drainage auxiliary device in this embodiment. As a further optimization, the tray 1 in this embodiment is hollow inside and has a horizontal connecting shaft 5 inside. The connecting shaft 5 is located directly below the arc-shaped protrusion 11 and is parallel to its center line. The two ends of the connecting shaft 5 are fixedly connected to the tray 1. Two through slots 12 are horizontally opened at one end of the tray 1 near the arc-shaped protrusion 11. One end of each of the two support columns 2 passes through the through slots 12 and extends into the interior of the tray 1. The connecting shaft 5 passes through the support columns 2 and is rotatably connected to them. A driving mechanism is provided on the tray 1, and the output end of the driving mechanism is connected to the support column 2.

[0037] In this embodiment, the connecting shaft 5 and through groove 12 inside the support plate 1 enable the support column 2 to be rotatably connected to the connecting shaft 5. The drive mechanism then drives the support column 2 to rotate, which not only allows for adjustment of the tilt angle of the support column 2 to suit the needs of different patients, but also enhances the effect of gravity on the sputum in the patient's lungs by using the drive mechanism to swing the support column 2 up and down at a uniform speed during the patient's postural drainage process. This keeps the sputum in the lungs in an active state, preventing it from sticking to the inner wall of the bronchus when using gravity for drainage, thus further ensuring the effectiveness of postural drainage in using gravity to drain sputum.

[0038] Specifically, in the above embodiment, two sleeves 21 are coaxially sleeved on the connecting shaft 5. The sleeves 21 are rotatably connected to the connecting shaft 5 around its circumference. The support column 2 passes through the through groove 12 and extends into the interior of the support plate 1 before being fixedly connected to the sleeves 21.

[0039] In addition, limiters, such as clamps, are provided at both ends of the sleeve 21 on the support column 2 to prevent the sleeve 21 from swaying left and right. At the same time, the limiters can be used to adjust the distance between the two support columns 2, making it convenient for patients of different body types.

[0040] Reference Figure 4 As shown, Figure 4 This is a cross-sectional view of the body positioning drainage auxiliary device in this embodiment. As a further optimization, in this embodiment, two through slots 12 are respectively horizontally provided with reinforcing rods 13, which are located directly below the support column 2. The support column 2 is slidably connected to the support plate 1 along its length direction. The end of the support column 2 near the arc-shaped protrusion 11 abuts against the lower side of the support column 2. The output end of the drive mechanism is connected to the support column 2.

[0041] In this embodiment, the reinforcing rod 13 is used in conjunction with the driving mechanism to drive the support column 2 to swing up and down, and the swing of the support column 2 is more stable. At the same time, the reinforcing rod 13 can support the support column 2, improve the strength of the postural drainage auxiliary device, avoid danger to the patient during use, and improve the stability of postural drainage using gravity to drain sputum.

[0042] Reference Figure 5 , Figure 6 As shown, Figure 5 This is a BB cross-sectional view of the body positioning drainage assist device in this embodiment. Figure 5This is a CC cross-sectional view of the body positioning drainage auxiliary device in this embodiment. The driving mechanism in the above embodiment includes: ribs 27, lead screws 28, and motors 29. Multiple ribs 27 are horizontally arranged between two reinforcing rods 13. The two ends of the ribs 27 are fixedly connected to the reinforcing rods 13. The motor 29 is fixed inside the support plate 1 and is located at the end of the support plate 1 away from the arc-shaped protrusion 11. The lead screw 28 passes horizontally through multiple ribs 27 and is threadedly connected to them respectively. One end of the lead screw 28 is fixedly connected to the output shaft of the motor 29 through a coupling. The motor 29 drives the lead screw 28 to rotate, thereby using the ribs 27 to synchronously drive the two reinforcing rods 13 to move back and forth, thereby causing the support column 2 to swing up and down.

[0043] Specifically, two U-shaped guide rails 26 are horizontally fixed on the inner wall of the tray 1 near its two sides. The reinforcing rod 13 is embedded in the U-shaped guide rails 26 and slidably connected to them, which further improves the stability of the reinforcing rod 13 moving back and forth.

[0044] As a further optimization, in this embodiment, a U-shaped limiting member 14 is vertically fixed at one end of the reinforcing rod 13 near the support column 2. The U-shaped limiting member 14 is sleeved on the support column 2 from bottom to top and abuts against it.

[0045] In this embodiment, the U-shaped limiting member 14 is used to push the support column 2 to swing up and down and simultaneously limit it, so as to prevent the support column 2 from swaying to both sides when it swings up and down, further enhancing the stability of the positional drainage effect of the support column 2 swinging up and down, and ensuring the effect of positional drainage using gravity to drain sputum.

[0046] Reference Figure 7 As shown, Figure 7 This is an enlarged schematic diagram of point D of the body positioning drainage auxiliary device in this embodiment. As a further optimization scheme, a sink 15 is provided on the inner bottom of the U-shaped limiting member 14 in this embodiment. A roller 16 is horizontally provided in the sink 15. The center line of the roller 16 is perpendicular to the reinforcing rod 13. The two ends of the roller 16 are rotatably connected to the inner wall of the sink 15. The roller 16 abuts against the lower side of the support column 2.

[0047] In this embodiment, the roller 16 in the bottom groove 15 inside the U-shaped limiting member 14 improves the smoothness of the reinforcing rod 13 moving back and forth to push the support column 2 to swing up and down, and avoids abnormal noise caused by friction between the U-shaped limiting member 14 and the support column 2, which would affect the patient's treatment environment.

[0048] As a further optimization, in this embodiment, a lower limb support plate 17 is horizontally arranged on the top of the support plate 1 and is located on the horizontal section of the support plate 1. A pair of wedge blocks 18 are vertically arranged directly above the two reinforcing rods 13. The height of the two wedge blocks 18 gradually decreases or increases along the length of the reinforcing rods 13. One end of one wedge block 18 away from its inclined surface is fixedly connected to the two reinforcing rods 13. A guide groove 19 is vertically opened on the top of the support plate 1 and communicates with its interior. The other end of the wedge block 18 away from its inclined surface passes through the guide groove 19 and is fixedly connected to the lower side of the lower limb support plate 17.

[0049] In this embodiment, the lower limb support plate 17 is used in conjunction with two wedge blocks 18 and a guide groove 19. When the two reinforcing rods 13 drive the support column 2 to swing up and down, they drive the wedge block 18 located on the lower side to move, thereby pushing the wedge block 18 located on the upper side to move up and down along the guide groove 19, which in turn drives the lower limb support plate 17 to move up and down, so that the patient's body is in a tilted downward position, further improving the effect of postural drainage using gravity to drain sputum.

[0050] Specifically, refer to Figure 4 As shown, Figure 4 This is a cross-sectional view of the body positioning drainage assist device in this embodiment. When the drive mechanism moves the two reinforcing rods 13 to the right, the support column 2 swings downward to increase the downward tilt angle of the patient's chest and above, thereby improving the drainage effect of gravity on the patient's lungs. At the same time, the reinforcing rod 13 moves the wedge block 18 located on the lower side to the right, thereby pushing the wedge block 18 located on the upper side to move upward, so as to realize that the lower limb support plate 17 lifts the patient's lower limbs upward.

[0051] Reference Figure 8 As shown, Figure 8 This is a top view of the mounting plate in this embodiment. Specifically, in this embodiment, the top of the horizontal section of the support plate 1 is through-through, and a mounting plate 25 is horizontally fixed on the lower side of the top through-through of the support plate 1 (the mounting plate 25 is flush with the inner top of the support plate 1). A guide groove 19 is vertically opened in the middle of the mounting plate 25. A wedge block 18 located on the upper side passes through the guide groove 19 and is slidably connected to it vertically. A limiting groove is also provided on the edge of the guide groove 19. A guide protrusion is correspondingly provided on the outer side of the upper wedge block 18. The guide protrusion is embedded in the limiting groove and is connected to it. The lower limb support plate 17 is located on the inner side of the top through-through of the support plate 1. The lower side of the lower limb support plate 17 abuts against the upper side of the mounting plate 25, and the upper side of the lower limb support plate 17 is flush with the top of the support plate 1.

[0052] As a further optimization, in this embodiment, an arc-shaped groove 20 is provided on the upper side of the arc-shaped protrusion 11 along its outline. The arc-shaped groove 20 extends vertically downward through the end face of the support plate 1 on the side near the upper limb arc-shaped support plate 3.

[0053] In this embodiment, an arc-shaped groove 20 is formed along the outline of the arc-shaped protrusion 11. The arc-shaped groove 20 is used to make the arc-shaped protrusion 11 fit the patient's abdomen. The two sides of the arc-shaped groove 20 limit the patient and prevent the part below the patient's abdomen from shaking, thereby improving the stability of the patient's postural drainage and ensuring the sputum drainage effect.

[0054] Specifically, in the above embodiment, a soft pad is provided on the arc-shaped groove 20 to improve the comfort of the patient when using the body position drainage assistance device.

[0055] As a further optimization, in this embodiment, the depth of the arc-shaped groove 20 on the side away from the upper limb arc-shaped support plate 3 gradually decreases, so that the arc-shaped groove 20 is flush with the top of the horizontal section of the support plate 1.

[0056] In this embodiment, the arc-shaped groove 20 and the horizontal section of the support plate 1 are made to transition, so as to avoid discomfort to the patient when the patient lies prone on the support plate 1 due to the gap between the arc-shaped groove 20 and the horizontal section of the support plate 1, and further improve the comfort of the patient when using the body position drainage auxiliary device.

[0057] As a further optimization, in this embodiment, the inner diameter of the upper limb arc-shaped support plate 3 gradually decreases from one end near the support plate 1 to the other end.

[0058] In this embodiment, the inner diameter of the upper limb arc support plate 3 gradually decreases from one end near the support plate 1 to the other end, thereby improving the stability of the upper limb arc support plate 3 and the patient's forearm in supporting the patient's chest and above, and preventing the patient's forearm from sliding on the upper limb arc support plate 3 when the patient's chest and above tilt downwards.

[0059] Specifically, in this embodiment, a handle 4 is vertically fixed on the inner side of the upper limb arc support plate 3. The handle 4 is located on the side of the upper limb arc support plate 3 away from the arc protrusion 11. The patient holds the handle 4 with both hands and maintains a tilted downward posture for a long time (15-25 minutes).

[0060] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A postural drainage assist device for respiratory medicine, characterized in that, include: The tray is placed horizontally on the bed surface along the length of the nursing bed. One end of the tray has a vertical arc-shaped protrusion at the top. The center line of the arc-shaped protrusion is parallel to the width of the nursing bed. The arc-shaped protrusion is flush with the end face of the tray. The patient lies prone on the tray with their abdomen against the arc-shaped protrusion and their chest is located on the outside of the arc-shaped protrusion. Two support columns are located on the lower side of the end of the tray near the arc-shaped protrusion and are parallel to each other along the length of the tray. One end of each of the two support columns is connected to the tray. Two upper limb arc-shaped support plates are respectively set on the two support columns. The opening of the upper limb arc-shaped support plate faces upward and its bottom is connected to the support column. The distance between the center lines of the two upper limb arc-shaped support plates gradually decreases from the side closer to the arc-shaped protrusion to the other side. The patient's two forearms are respectively placed in the upper limb arc-shaped support plates and abut against their inner bottom, so that the patient's chest and above are in a tilted downward position, so that the sputum in the patient's lungs can flow to the trachea by gravity.

2. The respiratory medicine postural drainage assist device according to claim 1, characterized in that, The support column is inclined downwards, and the distance between the side of the support column near the arc-shaped protrusion and the bed surface is greater than the distance between the other side of the support column and the bed surface.

3. The respiratory medicine postural drainage assist device according to claim 1, characterized in that, The tray is hollow inside and has a horizontal connecting shaft inside. The connecting shaft is located directly below the arc-shaped protrusion and is parallel to its center line. Both ends of the connecting shaft are fixedly connected to the tray. Two through slots are horizontally opened at the end of the tray near the arc-shaped protrusion. One end of each of the two support columns passes through the through slots and extends into the interior of the tray. The connecting shaft passes through the support columns and is rotatably connected to them. A drive mechanism is provided on the tray, and the output end of the drive mechanism is connected to the support columns.

4. The respiratory medicine postural drainage assist device according to claim 3, characterized in that, A reinforcing rod is horizontally inserted into each of the two through slots and is located directly below the support column. The support column is slidably connected to the tray along its length. The end of the support column near the arc-shaped protrusion abuts against the lower side of the support column. The output end of the drive mechanism is connected to the support column.

5. The respiratory medicine postural drainage assist device according to claim 4, characterized in that, A U-shaped limiting member is vertically fixed at one end of the reinforcing rod near the support column. The U-shaped limiting member is fitted onto the support column from bottom to top and abuts against it.

6. The respiratory medicine postural drainage assist device according to claim 5, characterized in that, The inner bottom of the U-shaped limiting member is provided with a groove, and a roller is horizontally provided in the groove. The center line of the roller is perpendicular to the reinforcing rod. The two ends of the roller are rotatably connected to the inner wall of the groove, and the roller abuts against the lower side of the support column.

7. The respiratory medicine postural drainage assist device according to claim 4, characterized in that, A lower limb support plate is horizontally arranged on the top of the support plate and is located on the horizontal section of the support plate. A pair of wedge blocks are vertically arranged directly above the two reinforcing rods. The height of the two wedge blocks gradually decreases or increases along the length of the reinforcing rods. One end of one wedge block away from its inclined surface is fixedly connected to the two reinforcing rods. A guide groove is vertically opened on the top of the support plate and communicates with its interior. The other end of the wedge block away from its inclined surface passes through the guide groove and is fixedly connected to the lower side of the lower limb support plate.

8. The respiratory medicine postural drainage assist device according to claim 1, characterized in that, An arc-shaped groove is formed on the upper side of the arc-shaped protrusion along its outline, and the arc-shaped groove extends vertically downward through the end face of the support plate on the side near the upper limb arc-shaped support plate.

9. The respiratory medicine postural drainage assist device according to claim 8, characterized in that, The depth of the arc-shaped groove gradually decreases on the side away from the upper limb arc-shaped support plate, so that the arc-shaped groove is flush with the top of the horizontal section of the support plate.

10. The respiratory medicine postural drainage assist device according to claim 1, characterized in that, The inner diameter of the upper limb arc-shaped support plate gradually decreases from one end closer to the other.

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