Pillow assembly capable of conveniently adjusting angle
By designing a prone pillow assembly with a base plate, a swing angle adjustment mechanism, and an elevation angle adjustment mechanism, the problem of existing prone pillows being unable to accurately adjust the head elevation and swing angles has been solved. This enables stable recovery and self-reset of patients when prone, improving the recovery effect after retinal surgery.
Patent Information
- Application Number
- CN202423251081.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing prone pillows cannot accurately adjust the tilt and sway angles of a patient's head when lying prone, resulting in inconvenience and instability, which affects the recovery effect after retinal surgery.
A headrest assembly comprising a base plate, a swing angle adjustment mechanism, and a tilt angle adjustment mechanism was designed. The headrest is detachably connected to these mechanisms to achieve precise adjustment of the tilt and swing angles of the patient's head. Locking bolts and straps are used to ensure the stability and convenience of the adjustment.
It enables accurate adjustment of the head tilt and sway angles when the patient is prone, ensuring effective support for the retina during recovery, and allowing the patient to automatically reset their head after getting up, reducing the workload of medical staff.
Smart Images

Figure CN223760039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a sleeping pillow, and more particularly to a sleeping pillow assembly that allows for convenient angle adjustment. Background Technology
[0002] After retinal surgery, patients typically need to maintain a prone position to promote eye recovery. A prone pillow is a commonly used recovery aid in clinical practice, reducing discomfort for patients in this position. In practice, maintaining a prone position that suits the patient not only improves comfort but also enhances recovery efficiency. It's important to understand that the primary reason for this prone position after retinal surgery is that the vitreous humor is removed during the procedure. At this time, the vitreous humor, which normally supports the retina, can no longer effectively support it. Therefore, silicone oil or an inert gas (C3F8) is injected into the eye to apply pressure to the retina and prevent retinal detachment.
[0003] However, each patient's condition is different, requiring doctors to adaptively adjust the head tilt and sway angles when the patient is prone, ensuring the pressure from the silicone oil or inert gas (C3F8) injected into the eyeball after retinal surgery is precisely positioned. This adjustment is primarily achieved by modifying the vertical tilt and lateral sway angles of the patient's head. However, existing prone pillows lack these adjustment functions. Medical staff must improvise by placing readily available materials, such as clothing or blankets, under the pillow, which is inconvenient and prone to deformation under prolonged pressure, leading to significant changes in the tilt angle. Adjusting the head sway angle is even more unpredictable, especially after the patient gets up and often struggles to return to the original prone position. Therefore, designing a prone pillow component that can conveniently and stably control the head tilt and sway angles when the patient is prone is clinically essential. Utility Model Content
[0004] In view of the above shortcomings, the purpose of this utility model is to provide a prone pillow assembly that can be easily adjusted in terms of angle, so as to make convenient and precise adjustment of the tilt and sway angles of the patient's head when lying prone.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A type of face pillow that can be precisely adjusted in angle, including
[0007] A base plate is placed under the patient's chest.
[0008] The swing angle adjustment mechanism is horizontally rotatable and connected to the base plate to adjust the left and right swing angle by rotating relative to the base plate; the elevation angle adjustment mechanism is vertically rotatable and connected to the swing angle adjustment mechanism to adjust the up and down elevation angle by rotating relative to the swing angle adjustment mechanism.
[0009] The headrest is detachably mounted on the tilt adjustment mechanism so that it moves synchronously with the tilt adjustment mechanism.
[0010] Preferably, the swing angle adjustment mechanism includes a first adjustment plate, which is horizontally rotatable and connected to the base plate. The first adjustment plate is provided with an arc-shaped groove, which is coaxial with the axis of the first adjustment plate and the base plate. The base plate is also provided with an extension plate extending to the arc-shaped groove. The extension plate is screwed with a first locking bolt, which passes through the arc-shaped groove and presses against the first adjustment plate with friction.
[0011] Preferably, the elevation adjustment mechanism includes a second adjustment plate, which is hinged to the first adjustment plate on the side near the base plate and can be vertically flipped. Two supports are provided on the lower surface of the side of the second adjustment plate away from the base plate, and a crankshaft is provided between the two supports. Both ends of the crankshaft are rotatably inserted into the supports. One end of the crankshaft extends out of the support and is coaxially connected to a handwheel. Both ends of the crankshaft are polygonal prisms. Prism-shaped slots are provided on the supports. Sleeves are slidably fitted on both ends of the crankshaft. The sleeves are pushed axially to slide into the slots.
[0012] Preferably, the second adjustment plate is provided with at least one strap, which secures the pillow to the second adjustment plate.
[0013] Preferably, the substrate is further provided with a positioning mechanism, which includes two symmetrically arranged adjustment plates. The adjustment plates are provided with guide grooves extending along the length direction. A second locking bolt passes through the guide groove and is screwed to the lower part of the substrate. The second locking bolt has frictional force pressing against the adjustment plate. A vertically extending positioning post is provided on one end of the adjustment plate near the bolster.
[0014] Beneficial effects: With the above structure, the adjustment of the head tilt and sway angles when patients are prone after ophthalmic surgery will be more accurate and convenient compared to existing adjustment methods. Moreover, under this scheme, even if the patient gets up and returns to bed, the original position will be maintained due to the fixed prone position, thus effectively ensuring that the retina is effectively supported during the recovery period. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a bottom structural diagram of this utility model;
[0017] Figure 3 This is a diagram showing the state of this utility model after adjusting the elevation angle;
[0018] Figure 4 This is a diagram showing the state of the present invention after the swing angle has been adjusted.
[0019] Reference numerals in the attached drawings: 1. Base plate 2. Swing angle adjustment mechanism 21. First adjustment plate 211. Arc groove 22. Extension plate 23. First locking bolt 3. Elevation angle adjustment mechanism 31. Second adjustment plate 32. Support 321. Slot 33. Crankshaft 34. Sleeve 35. Strap 36. Handwheel 4. Pillow 5. Positioning mechanism 51. Adjusting piece 511. Guide groove 52. Second locking bolt 53. Positioning post. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figures 1-4 The illustrated prone pillow assembly includes a base plate 1, a set of tilt adjustment mechanisms 2, a set of elevation adjustment mechanisms 3, and a prone pillow 4. The tilt adjustment mechanisms are horizontally hinged to one end of the base plate, allowing adjustment of the patient's head tilt angle by adjusting the relative angle between the tilt adjustment mechanism and the base plate. The elevation adjustment mechanisms are hinged to the tilt adjustment mechanisms and can be flipped vertically relative to the tilt adjustment mechanisms, allowing adjustment of the patient's head elevation angle by adjusting the angle between the two mechanisms. Considering infection control in hospitals, this design recommends that the prone pillow be provided by the patient or be disposable. Therefore, the connection between the prone pillow and the elevation adjustment mechanisms needs to be detachable to ensure that it can be removed from the elevation adjustment mechanism after use. Preferably, a strap 35 connected to the second adjustment plate 31 can be provided on the tilt adjustment mechanism to bind the bolster to the tilt adjustment mechanism, which ensures both the fixation of the bolster on the tilt adjustment mechanism and the ease of disassembly of the bolster.
[0022] It should be noted that in the above scheme, the swing angle adjustment mechanism 2 specifically includes a first adjustment plate 21 rotatably connected to the base plate. This first adjustment plate is positioned below the patient's head after the base plate is placed below the patient's chest. Figure 2 As shown, an arc-shaped groove 211 is formed on the end of the first adjusting plate away from the substrate. This arc-shaped groove is coaxially arranged with the connecting shaft of the substrate and the first adjusting plate. Furthermore, an extension plate 22 is fixedly connected to the substrate. One end of the extension plate extends below the arc-shaped groove and is screwed with a first locking bolt 23. It should be noted that the first locking bolt passes through the arc-shaped groove on the first adjusting plate. When the first locking bolt is tightened on the extension plate, it presses against the first adjusting plate with friction. At this time, the first adjusting plate is clamped by the extension plate and the first locking bolt 23, and will not rotate relative to the substrate. When it is necessary to adjust the horizontal rotation angle of the first adjusting plate relative to the substrate, simply loosen the first locking bolt.
[0023] like Figure 1 As shown, the elevation adjustment mechanism 3 in this solution specifically includes a second adjustment plate 31. The side of the second adjustment plate closest to the base plate is hinged to the first adjustment plate 31, allowing the second adjustment plate to rotate about the hinge axis in the vertical plane. Simultaneously, two supports 32 are symmetrically arranged on the lower surface of the second adjustment plate away from the base plate, with a crankshaft 33 positioned between them. The crankshaft is U-shaped, and both ends are rotatably inserted into the supports. It should be noted that, to facilitate crankshaft rotation and adjustment of its support height, one end of the crankshaft extends out of the support and is coaxially connected to a handwheel 36. Furthermore, to ensure that the crankshaft does not flatten again under pressure from the head after the support height is adjusted, both ends of the crankshaft are shaped as polygonal prisms, and a prism-shaped slot 321 is also provided on the support. Meanwhile, a retainer 34 is also slidably fitted on the prismatic end of the crankshaft. The outer surface of the retainer is prismatic and fits the groove. When it is necessary to adjust the support height of the crankshaft, the retainer is pulled out of the groove, and after the crankshaft rotation angle is adjusted, the retainer is simply inserted back into the groove.
[0024] Furthermore, this solution also considers the following situation: during prolonged prone positions, patients inevitably need to get out of bed (to use the toilet, walk to relax, etc.), and upon their return, they often cannot accurately position themselves and require assistance from medical staff, which increases the workload of medical personnel. To reduce this situation, this solution also includes a positioning mechanism 5 on the base plate 1. Specifically, this positioning mechanism includes two symmetrically arranged adjustment plates 51, each with a guide groove 511 extending along its length. It also includes two second locking bolts 52, which pass through the guide groove and are screwed onto the base plate 1. Loosening the second locking bolts allows the extension plate to extend and rotate in the horizontal plane, while tightening them fixes the extension plate to the base plate, maintaining its stable position. It should be noted that a vertically extending positioning post 53 is also provided at the end of the extension plate away from the second locking bolts. After medical staff have adjusted the patient's head position, they can adjust the position of the extension plate so that the positioning posts are positioned under the patient's armpits, thus achieving proper body positioning. When the patient returns to the prone position, they simply place their head on the prone pillow and ensure the positioning posts are under their armpits to easily return to the initial prone position without further assistance from medical staff.
[0025] Working principle: When an ophthalmology patient needs to lie prone after surgery, medical staff first place this device on the patient's bed, and then fix the prone pillow to the second adjustment plate of the elevation adjustment mechanism. After the above preparations are completed, the patient lies prone on the bed, at which point the patient's chest is pressed against the base plate to ensure the stability of the base plate.
[0026] Next, the medical staff removes the ferrule from the slot and then turns the handwheel to adjust the crankshaft's tilt angle. Once the patient's head tilt angle reaches the desired height, the ferrule is inserted back into the slot to fix the tilt angle adjustment device in its tilted position. Then, the medical staff loosens the first locking bolt and rotates the first adjusting plate relative to the base plate. During this rotation, the patient's head also sways from side to side, completing the adjustment of the patient's head tilt angle. After the patient's head tilt angle is adjusted, the first locking bolt is tightened again to prevent relative rotation between the first adjusting plate and the base plate.
[0027] After adjusting the patient's head tilt and sway angles, the medical staff loosened the second locking bolt and then adjusted the position of the adjusting plate so that the positioning post on the adjusting plate rested against the patient's armpit. The second locking bolt was then tightened again to secure the positioning post. This allows for quick and easy repositioning of the patient, even after they get out of bed and return to it.
Claims
1. A prone-sleeper assembly capable of being easily adjusted in angle, characterized by: The utility model relates to a kind of adjustable pillow, including Substrate (1), pad is arranged in the chest of patient; Swing angle adjusting mechanism (2), it can be horizontally rotated and be connected on the substrate (1), to adjust left and right swing angle by the rotation of substrate (1); Elevation angle adjusting mechanism (3), it can be vertically rotated and be connected on the swing angle adjusting mechanism (2), to adjust up and down angle of inclination by the rotation of swing angle adjusting mechanism (2); Prone pillow (4), it is detachably arranged on the elevation angle adjusting mechanism (3), to follow the synchronous action of the elevation angle adjusting mechanism (3).
2. The angle-adjustable prone-sleeper assembly of claim 1, wherein: The swing angle adjusting mechanism (2) includes first adjusting plate (21), the first adjusting plate (21) can be horizontally rotated and be connected on substrate (1), the first adjusting plate (21) is provided with arc slot (211), the arc slot (211) is coaxial with the axis of first adjusting plate (21), substrate (1), substrate (1) is also provided with extension plate (22) extending to arc slot (211), the extension plate (22) is screwed with first locking bolt (23), the first locking bolt (23) has the friction of pressure on first adjusting plate (21) after passing through arc slot (211).
3. The angle-adjustable prone-sleeper assembly of claim 2, wherein: Elevation angle adjusting mechanism (3) includes second adjusting plate (31), the second adjusting plate (31) is close to the side of substrate (1) and can be vertically flipped and be connected with first adjusting plate (21), the lower surface of the side of second adjusting plate (31) away from substrate (1) is provided with two supports (32), the two supports (32) are provided with crankshaft (33) between, the both ends of crankshaft (33) can be rotatably inserted into support (32), one end of crankshaft (33) is coaxially connected hand wheel (36) after extending out of support (32), the both ends of crankshaft (33) are polygonal prisms, the support (32) is provided with prism-shaped clamping groove (321), the both ends of crankshaft (33) are sleeved with clamping sleeve (34), the clamping sleeve (34) is axially pushed to make the clamping sleeve (34) slide and insert into clamping groove (321).
4. The angle-adjustable prone-sleeper assembly of claim 3, wherein: The second adjusting plate (31) is provided with at least one strap (35), and the strap (35) binds the prone pillow (4) on the second adjusting plate (31).
5. The angle-adjustable prone-sleeper assembly of claim 4, wherein: The substrate (1) is also provided with positioning mechanism (5), and the positioning mechanism (5) includes two symmetrical adjusting pieces (51), the adjusting piece (51) is provided with guide groove (511) extending along the length direction, a second locking bolt (52) is screwed on the lower part of substrate (1) after passing through guide groove (511), the second locking bolt (52) has the friction of pressure on adjusting piece (51), and the end of adjusting piece (51) close to prone pillow (4) is provided with a vertical positioning column (53).