A severe patient prone position respiratory treatment auxiliary device
By designing an adjustable support device, the problem caused by the inability of existing prone support devices to provide differentiated support for the chest cavity and head and neck was solved, achieving flexible support and stable fixation, and improving the respiratory treatment effect for critically ill patients.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST PEOPLES HOSPITAL OF NANTONG
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-21
AI Technical Summary
Existing prone support devices have a simple structure and cannot provide differentiated support according to the patient's chest cavity structure, which leads to chest cavity compression, affecting lung expansion and respiratory function. Furthermore, head fixation causes neck stiffness and muscle fatigue, making it difficult to meet the needs of critically ill patients for prolonged prone positions.
A device comprising a support body, a fan-shaped fixing plate, a rotating frame, an arc-shaped support rod, and an airbag was designed. Through an adjustable positioning slide rod and threaded rod structure, it achieves zoned support for the thoracic cavity and flexible adjustment for the head and neck, providing flexible support and stable fixation to adapt to different patient body shapes.
It effectively reduces chest pressure, improves lung expansion, prevents neck stiffness and muscle fatigue, ensures a smooth airway, and enhances treatment comfort and safety.
Smart Images

Figure CN224523752U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical auxiliary device technology, specifically relating to a prone breathing therapy auxiliary device for critically ill patients. Background Technology
[0002] Currently, prone positioning ventilation is widely used to improve lung ventilation and blood oxygen saturation in the treatment of patients with severe lung diseases, especially those with severe acute respiratory distress syndrome (ARDS). Compared with the supine position, the prone position helps the posterior lung expand, thereby improving alveolar ventilation and oxygenation efficiency. However, existing prone positioning methods generally suffer from problems such as simple structure, limited function, and poor comfort, making it difficult to meet the needs of critically ill patients to maintain a prone position for extended periods.
[0003] Specifically, traditional prone support devices often use only a single soft pad or a flat support structure, failing to provide differentiated support based on the patient's chest structure. This can easily lead to chest compression, affecting lung expansion and respiratory function, and reducing treatment effectiveness. Furthermore, during actual treatment, the patient's head needs to remain in a fixed position for extended periods. Without a suitable adjustable structure, this can easily cause neck stiffness, muscle fatigue, and even airway obstruction. Especially under intensive care conditions, where patients have limited self-regulation abilities, assistive devices with good head and neck support and adjustment functions are crucial to ensure smooth breathing. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a prone breathing therapy assistive device for critically ill patients. It can achieve a reasonable structure, clear support zones, adaptability to different patient body types, and can improve chest compression and neck discomfort. This is a technical problem that urgently needs to be solved in this field.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a prone breathing therapy auxiliary device for critically ill patients, comprising a support body, wherein two fan-shaped fixing plates are symmetrically arranged at the end of the support body, and positioning holes are evenly opened on the surface of the two fan-shaped fixing plates that are close to each other, and the positioning holes on the same side are distributed in a fan shape. A rotating frame is installed at the end of the support body. The rotation axis of the rotating frame coincides with the center of the curved surface of the fan-shaped fixing plate. The rotating frame is placed between the two fan-shaped fixing plates. Arc-shaped support rods are symmetrically arranged on the inner side of the rotating frame. Headrests are slidably installed on the upper surfaces of the two arc-shaped support rods. The position of the headrests can be adjusted to accommodate different patients.
[0006] Furthermore, the arc-shaped support rod is arranged horizontally, and the bottom of the headrest is symmetrically provided with arc-shaped sliding grooves, which slide on the arc-shaped support rod. A breathing hole is provided at the center of the surface of the headrest.
[0007] Furthermore, the upper surface of the support body is symmetrically provided with pads on both sides, with the two pads corresponding to the two sides of the patient's chest cavity respectively. The upper surface of the pads has a curved structure with the inner side lower and the outer side higher, and air bladders are evenly provided on the upper surface of the pads.
[0008] Furthermore, a crossbeam is provided laterally at the end of the rotating frame, and the end of the crossbeam corresponds to the positioning hole.
[0009] Furthermore, a threaded rod is vertically arranged at the center of the surface of the crossbeam, and open slots are symmetrically opened on the surface of the crossbeam, with the open slots respectively located on both sides of the threaded rod.
[0010] Furthermore, positioning slide rods are symmetrically slidably installed at both ends of the crossbeam, and the ends of the two positioning slide rods are respectively adapted to the internal dimensions of the corresponding positioning holes.
[0011] Furthermore, each of the two positioning slide rods has a protrusion at one end close to the other, the protrusion penetrating the open groove, a slider screwed onto the surface of the threaded rod, and connecting rods symmetrically hinged at both ends of the slider, with the ends of the two connecting rods away from the slider respectively hinged to the two protrusions.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention provides two pads on the support body, both of which have a curved structure and multiple airbags evenly distributed on their surfaces. This allows the patient to lie prone with both sides of their chest cavity in contact with the surface of the pads, and the airbags provide flexible support, thereby reducing chest cavity pressure and increasing lung expansion space. This solves the problem of limited ventilation and reduced oxygenation efficiency caused by chest cavity compression in the prior art. This utility model features a headrest with an arc-shaped groove at the bottom that slides in conjunction with an arc-shaped support rod, allowing the headrest to slide along an arc-shaped trajectory and enabling slight head rotation. This reduces neck stiffness and muscle fatigue caused by prolonged fixed head posture. Additionally, a breathing hole is located in the center of the headrest, ensuring that the mouth and nose are directly facing the ventilation point when the face is down, thus guaranteeing a smooth breathing passage for the patient during prone positioning. This invention utilizes a combination of a fan-shaped fixing plate, positioning holes, and an adjustable positioning slide rod structure between the rotating frame and the support body. This allows the elevation angle of the rotating frame to be flexibly adjusted according to the patient's position. Furthermore, the insertion and removal of the positioning slide rod at different positions is controlled by a threaded rod, slider, connecting rod, and protrusion. This achieves precise adjustment and stable fixation of the head and neck support angle, effectively solving the problems of fixed support angles, inability to adapt to different individual patient needs, and inconvenient adjustment in existing technologies. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the installation three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the supporting body structure of this utility model; Figure 3 This is a schematic diagram of the rotating frame and headrest mounting structure of this utility model; Figure 4 This is a schematic diagram of the headrest structure of this utility model; Figure 5 This is a schematic diagram of the installation cross-section of the positioning slide bar of this utility model.
[0014] The components represented by each number in the attached diagram are listed below: 1. Support body; 11. Fan-shaped fixing plate; 12. Positioning hole; 2. Pad; 21. Airbag; 3. Rotating frame; 31. Crossbeam; 32. Arc-shaped support rod; 33. Open slot; 4. Headrest; 41. Breathing hole; 42. Arc-shaped slide groove; 5. Positioning slide rod; 51. Protrusion; 6. Threaded rod; 7. Slider; 8. Connecting rod. Detailed Implementation
[0015] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0016] refer to Figures 1-5 As shown, a prone breathing therapy assistive device for critically ill patients includes a support body 1. Two fan-shaped fixing plates 11 are symmetrically arranged at the end of the support body 1. Positioning holes 12 are evenly distributed on the surface of the two fan-shaped fixing plates 11 that are close to each other, and the positioning holes 12 on the same side are distributed in a fan shape. The support body 1 serves as the main support of the device, and its upper surface is a support platform for the patient to lie prone, which can adapt to the chest and abdominal structure of patients of different body types. The two fan-shaped fixing plates 11 are fixedly connected to the support body 1 to limit the rotation range of the rotating frame 3. By setting the fan-shaped positioning holes 12, the positioning slide rod 5 can be accurately inserted and fixed at different angles, thereby adjusting the elevation angle of the rotating frame 3 to meet the breathing posture needs of different patients and reduce the airway obstruction caused by neck bending.
[0017] refer to Figure 3 and Figure 4 As shown, the arc-shaped support rod 32 is arranged horizontally, and the bottom of the headrest 4 is symmetrically provided with arc-shaped grooves 42, which slide on the arc-shaped support rod 32. A breathing hole 41 is provided in the center of the surface of the headrest 4. The arc-shaped support rod 32 extends from the inside of the rotating frame 3 to both sides, and is arranged along the movement trajectory of the neck. The arc-shaped grooves 42 and the arc-shaped support rod 32 fit closely together, so that the headrest 4 can be slightly adjusted in position on the arc path, thereby accommodating the slight rotation of the patient's head and avoiding muscle stiffness and fatigue caused by prolonged fixation. The upper surface of the headrest 4 is covered with a soft pad to improve comfort, and a breathing hole 41 is provided in the center of it, so that when the patient lies face down, the mouth and nose are directly in front of the breathing hole 41, which can achieve smooth breathing and reduce the breathing difficulties caused by facial pressure in traditional treatments.
[0018] refer to Figure 1 and Figure 2 As shown, pads 2 are symmetrically arranged on both sides of the upper surface of the support body 1. The two pads 2 correspond to the two sides of the patient's chest cavity respectively. The upper surface of the pads 2 has a curved structure with a lower inner surface and a higher outer surface. Air bladders 21 are evenly arranged on the upper surface of the pads 2. The structure of the pads 2 is designed according to the contour of the two sides of the human chest cavity. The curved surface with a lower inner surface and a higher outer surface effectively covers the chest side and provides stable support. Each pad 2 surface is provided with multiple air bladders 21. The air bladders 21 are compressible structures and are filled with air or flexible liquid. They can disperse pressure when subjected to force, reduce chest cavity compression, avoid lung compression affecting ventilation function, and improve the problem of limited lung expansion caused by the inability of the existing device to provide zoned support as described in the background art.
[0019] refer to Figure 3 and Figure 5 As shown, a crossbeam 31 is horizontally arranged at the end of the rotating frame 3, and the end of the crossbeam 31 corresponds to the positioning hole 12. The rotating frame 3 is the core structure for adjusting the headrest tilt angle. One end of the rotating frame 3 is connected to the support body 1. The rotating frame 3 is aligned with the center of the fan-shaped fixing plate 11 through the rotating shaft, thereby realizing the overall rotation adjustment function. The crossbeam 31 passes through the end of the rotating frame 3 to provide stable support and serves as a bridge connecting the positioning slide rod 5 and the control mechanism. Its two ends are precisely matched with the positioning hole 12 at different angle positions, so that the structure remains stable after adjustment, avoids shaking, and improves the safety of use.
[0020] refer to Figure 5As shown, a threaded rod 6 is vertically arranged at the center of the surface of the crossbeam 31, and open slots 33 are symmetrically opened on the surface of the crossbeam 31, with the open slots 33 respectively located on both sides of the threaded rod 6. The threaded rod 6 is the driving element of the rotary adjustment mechanism, vertically arranged at the center of the crossbeam 31, and its axial rotation drives the slider 7 to move along its axis. The open slots 33 are opened on both sides of the crossbeam 31 to provide space for the movement of the connecting rod 8 and avoid structural interference. The threaded rod 6 and the slider 7 are connected by a helical pair structure, which facilitates the precise advance and retreat of the slider 7 through simple rotation, thereby indirectly controlling the position change of the positioning slide rod 5.
[0021] refer to Figure 1 and Figure 5 As shown, positioning slide rods 5 are symmetrically slidably installed at both ends of the crossbeam 31. The ends of the two positioning slide rods 5 are respectively adapted to the internal dimensions of the corresponding positioning holes 12. The positioning slide rods 5 are set at both ends of the crossbeam 31 and slide symmetrically in the horizontal direction under the drive of the slider 7. The end structure is precisely machined according to the size of the positioning hole 12, and the elevation angle is locked by plug-in cooperation. The positioning slide rods 5 have a stable structure and controllable stroke, which can ensure that the elevation angle of the patient's head and neck will not shift arbitrarily during the treatment, meeting the high requirements of positional accuracy and safety for critical care treatment.
[0022] refer to Figure 5 As shown, each of the two positioning slide rods 5 has a protrusion 51 at one end close to the other. The protrusion 51 passes through the open groove 33. A slider 7 is screwed onto the surface of the threaded rod 6. Connecting rods 8 are symmetrically hinged at both ends of the slider 7. The ends of the two connecting rods 8 away from the slider 7 are respectively hinged to the two protrusions 51. The protrusion 51 serves as the connecting medium between the positioning slide rod 5 and the connecting rod 8. Its position is exactly within the range of the open groove 33, ensuring that the connecting rod 8 can pull the protrusion 51 and the positioning slide rod 5 as the slider 7 moves. The slider 7 moves along the axis under the drive of the threaded rod 6. The connecting rod 8 converts its motion into the horizontal displacement of the slide rod 5 through the double hinge structure, thereby achieving rapid positioning or release. After adjustment, it is inserted into the positioning hole 12 for secure locking. This structure solves the problems of complex adjustment, inaccurate positioning, and patient discomfort in existing equipment, and enhances the adaptability and ease of operation of the device.
[0023] The working principle of this utility model is as follows: When in use, the patient lies prone on the upper surface of the support body 1, and the two sides of the chest cavity are respectively attached to the curved surfaces of the two pads 2. At this time, the center of the patient's chest cavity is supported by the pads 2, and is supported by the two pads 2 and the multiple airbags 21 on their surface to reduce the pressure on the chest cavity. The head is placed on the headrest 4, and the face is attached to the breathing hole 41 to facilitate breathing. During this process, the headrest 4 can slide along the trajectory of the arc support rod 32 through the arc groove 42, so that the patient can turn the head slightly to prevent the neck from stiffening due to prolonged head fixation. When in use, the tilt angle of the headrest 4 can be adjusted according to the user. During adjustment, the rotating frame 3 rotates around its rotation axis, and the threaded rod 6 is rotated to control the slider 7 to move along its axis. At this time, the positioning slide rods 5 on both sides can be pushed outward by the cooperation of the connecting rods 8 on both sides and the protrusions 51. The positioning slide rods 5 are fixed by cooperating with the corresponding positioning holes 12 at their ends, thereby adapting to the head support of different patients and preventing the neck from bending too much when lying prone, which could lead to difficulty breathing.
[0024] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A prone breathing therapy assistive device for critically ill patients, comprising a support body (1), characterized in that: The support body (1) has two fan-shaped fixing plates (11) symmetrically arranged at its end. The two fan-shaped fixing plates (11) are evenly provided with positioning holes (12) on the side surface that is close to each other. The positioning holes (12) on the same side are distributed in a fan shape. The support body (1) is equipped with a rotating frame (3) at its end. The rotation axis of the rotating frame (3) coincides with the center of the curved surface of the fan-shaped fixing plate (11). The rotating frame (3) is placed between the two fan-shaped fixing plates (11). The inner side of the rotating frame (3) is symmetrically provided with arc-shaped support rods (32). The upper surfaces of the two arc-shaped support rods (32) are slidably equipped with headrests (4). The position of the headrests (4) can be adjusted to suit different patients.
2. The prone breathing therapy assistive device for critically ill patients according to claim 1, characterized in that: The arc-shaped support rod (32) is arranged horizontally, and the bottom of the headrest (4) is symmetrically provided with arc-shaped sliding grooves (42). The arc-shaped sliding grooves (42) slide on the arc-shaped support rod (32), and the center of the surface of the headrest (4) is provided with a breathing hole (41).
3. The prone breathing therapy assistive device for critically ill patients according to claim 1, characterized in that: The support body (1) has symmetrical pads (2) on both sides of its upper surface. The two pads (2) correspond to the two sides of the patient's chest cavity respectively. The upper surface of the pads (2) has a curved structure with the inner side lower and the outer side higher. Airbags (21) are evenly arranged on the upper surface of the pads (2).
4. The prone breathing therapy assistive device for critically ill patients according to claim 1, characterized in that: The rotating frame (3) has a horizontal beam (31) at its end, and the end of the beam (31) corresponds to the positioning hole (12).
5. The prone breathing therapy assistive device for critically ill patients according to claim 4, characterized in that: A threaded rod (6) is vertically arranged at the center of the surface of the crossbeam (31), and open slots (33) are symmetrically opened on the surface of the crossbeam (31), with the open slots (33) respectively placed on both sides of the threaded rod (6).
6. The prone breathing therapy assistive device for critically ill patients according to claim 5, characterized in that: The two ends of the crossbeam (31) are symmetrically slidably mounted with positioning slide rods (5), and the ends of the two positioning slide rods (5) are respectively adapted to the internal dimensions of the corresponding positioning holes (12).
7. The prone breathing therapy assistive device for critically ill patients according to claim 6, characterized in that: Both of the two positioning slide rods (5) have a protrusion (51) at one end close to each other. The protrusion (51) passes through the open groove (33). The surface of the threaded rod (6) is screwed with a slider (7). The two ends of the slider (7) are symmetrically hinged with connecting rods (8). The ends of the two connecting rods (8) away from the slider (7) are respectively hinged to the two protrusions (51).