Ankylosing spondylitis backrest pillow

Abstract

The present invention discloses an ankylosing spondylitis backrest pillow, which includes a base, a shoulder and back pad, and a driving mechanism. Among them, the base has a headrest portion adapted to support the patient's head; the shoulder and back pad includes a neck pillow roller, a plurality of back pillow rollers and a connecting surface material. The neck pillow roller is fixedly arranged on the base and adjacent to the headrest portion. The neck pillow roller extends in a first direction and is adapted to support the patient's neck; the plurality of back pillow rollers are movably arranged on the base and are spaced apart in a second direction, and each back pillow roller is parallel to the neck pillow roller; the connecting surface material is wrapped outside the neck pillow roller and the plurality of back pillow rollers to connect the neck pillow roller and the plurality of back pillow rollers into one body and form a concave arc-shaped back pillow surface adapted to support the patient's shoulder and back; the driving mechanism is connected to the last back pillow roller among the plurality of back pillow rollers that is far from the neck pillow roller, and is used to drive the last back pillow roller to move so as to change the radian of the back pillow surface. According to the ankylosing spondylitis backrest pillow provided by the embodiment of the present invention, the radian of the back pillow surface can be adjusted to meet different usage requirements.

Description

Technical Field

[0001] The present invention relates to a nursing device, and more particularly to a backrest pillow for ankylosing spondylitis. Background Art

[0002] Ankylosing spondylitis (AS) is a disease mainly characterized by inflammation of the sacroiliac joints and spinal attachment points. It is a chronic inflammatory disease with the pathological features of fibrosis and ossification of the large joints of the extremities, as well as the fibrous ring of the intervertebral disc and its adjacent connective tissues, and joint ankylosis.

[0003] The backs of patients with ankylosing spondylitis show varying degrees of hunchback. As the disease progresses, the degree of hunchback becomes more severe, and the head and back are not on the same plane. In some treatment, nursing, or other required supine situations, ordinary pillows cannot provide good support for the heads and backs of patients. Therefore, for patients with ankylosing spondylitis in the supine position, due to the lack of reliable support for the head and back, discomfort and inconvenience are likely to occur. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to some extent. For this purpose, the object of the present invention is to provide a backrest pillow for ankylosing spondylitis.

[0005] To achieve the above object, according to an embodiment of the present invention, the backrest pillow for ankylosing spondylitis includes:

[0006] A base having a headrest portion adapted to support the patient's head;

[0007] A shoulder and back pad including a neck pillow roller, a plurality of back pillow rollers, and a connecting surface material. The neck pillow roller is fixedly provided on the base and adjacent to the headrest portion. The neck pillow roller extends in a first direction and is adapted to support the patient's neck; the plurality of back pillow rollers are movably provided on the base and arranged at intervals in a second direction. Each back pillow roller is parallel to the neck pillow roller, and the second direction is perpendicular to the first direction; the connecting surface material wraps around the neck pillow roller and the plurality of back pillow rollers to connect the neck pillow roller and the plurality of back pillow rollers into one body and form a concave arc-shaped backrest surface adapted to support the patient's shoulder and back.

[0008] A driving mechanism connected to the last back pillow roller away from the neck pillow roller among the plurality of back pillow rollers for driving the last back pillow roller to move to change the curvature of the backrest surface.

[0009] According to the ankylosing spondylitis backrest pillow provided by the embodiments of the present invention, the connecting surface material is wrapped outside the neck pillow roller and a plurality of back pillow rollers to connect the neck pillow roller and the plurality of back pillow rollers into one body, and form a concave arc-shaped back pillow surface suitable for supporting the shoulders and back of the patient. On the one hand, when the driving mechanism drives the last back pillow roller to move, each back pillow roller can be adaptively raised or lowered, thereby adjusting the radian of the back pillow surface. In this way, different usage requirements can be met, such as patients with different conditions. On the other hand, this shoulder and back pad composed of a plurality of back pillow rollers is similar to the multi-vertebral structure of the spine, providing better support for the back. Moreover, when the driving mechanism drives the last back pillow roller to move, each back pillow roller can be self-adaptively adjusted instead of being raised or lowered as a whole, and the radian adjustment of its back pillow surface is more flexible, and the adaptability to the patient's back after adjustment is better.

[0010] In addition, the ankylosing spondylitis backrest pillow according to the above embodiments of the present invention may further have the following additional technical features:

[0011] According to an embodiment of the present invention, the base includes:

[0012] A bottom plate;

[0013] Two side plates, the two side plates are oppositely arranged on the bottom plate and define an accommodation space;

[0014] The headrest part and the shoulder and back pad are arranged in the accommodation space between the two side plates.

[0015] According to an embodiment of the present invention, an activity groove is provided on the inner wall of each side plate;

[0016] The activity groove extends along the first direction and forms a concave arc shape, and the height of the end of the activity groove far from the headrest part is lower than the height of the end adjacent to the headrest part;

[0017] Sliding parts are respectively provided at both ends of each back pillow roller, and the sliding parts at both ends of the back pillow roller are respectively arranged in the activity grooves of the two side plates and can move.

[0018] According to an embodiment of the present invention, the activity groove includes:

[0019] A limiting groove, one end of the limiting groove extends along the first direction and forms a concave arc shape, and one end of the limiting groove is adjacent to the headrest part;

[0020] A sliding groove, the sliding groove is communicated with the other end of the limiting groove;

[0021] Wherein, the width of the limiting groove is greater than the diameter of the sliding part, and the width of the limiting groove increases first and then decreases from one end to the other end, and the width of the sliding groove is adapted to the diameter of the sliding part.

[0022] According to an embodiment of the present invention, the connecting surface material includes a wrapping portion wrapped around the neck rest roller and the back rest roller, and a connecting portion connected between the respective wrapping portions.

[0023] According to an embodiment of the present invention, the driving mechanism includes:

[0024] A connecting rod, one end of the connecting rod is pivotally connected to the sliding portion of the last back rest roller;

[0025] A driving assembly, the driving assembly is provided on the base and pivotally connected to the other end of the connecting rod for driving the connecting rod to move.

[0026] According to an embodiment of the present invention, the driving assembly includes:

[0027] A fixed seat, the fixed seat has two opposite supports;

[0028] A lead screw, the lead screw is pivotally provided on one of the two supports;

[0029] A guide rod, the guide rod is fixed on the other of the two supports and is coaxially arranged with the lead screw;

[0030] A sleeve, one end of the sleeve has internal threads and is in threaded cooperation with the lead screw, and the other end of the sleeve is in sliding cooperation with the guide rod;

[0031] A driving motor, the driving motor is connected to the lead screw for driving the lead screw to rotate;

[0032] Wherein, a pivot shaft is provided on the sleeve, the pivot shaft moves with the sleeve and is pivotally connected to the other end of the connecting rod.

[0033] According to an embodiment of the present invention, the driving assembly is provided on the bottom plate and located in the accommodation space, and the connecting rod is located outside the side plate.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0036] Figure 1It is a schematic structural diagram of the ankylosing spondylitis backrest pillow according to an embodiment of the present invention;

[0037] Figure 2 It is a cross-sectional view of the ankylosing spondylitis backrest pillow according to an embodiment of the present invention;

[0038] Figure 3 It is a schematic structural diagram of the shoulder and back pad in the ankylosing spondylitis backrest pillow according to an embodiment of the present invention;

[0039] Figure 4 It is a schematic structural diagram of the drive assembly in the ankylosing spondylitis backrest pillow according to an embodiment of the present invention.

[0040] Reference numerals:

[0041] 10. Base;

[0042] 101. Bottom plate;

[0043] 102(103). Side plates;

[0044] X10. Accommodation space;

[0045] H10. Activity groove;

[0046] H101. Limit groove;

[0047] H102. Sliding groove;

[0048] 11. Headrest part;

[0049] 20. Shoulder and back pad;

[0050] 201. Neck pillow roller;

[0051] 202. Backrest roller;

[0052] 2021. Sliding part;

[0053] 203. Connecting surface material;

[0054] 2031. Wrapping part;

[0055] 2032. Connecting part;

[0056] S20. Backrest surface;

[0057] 30. Driving mechanism;

[0058] 301. Link;

[0059] 302. Driving assembly;

[0060] 3021. Fixed seat;

[0061] 3021a. Support;

[0062] 3022. Lead screw;

[0063] 3023. Guide rod;

[0064] 3024. Sleeve;

[0065] 3025. Driving motor.

[0066] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0067] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0069] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0070] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0072] The following will describe in detail the ankylosing spondylitis backrest pillow according to the embodiments of the present invention with reference to the accompanying drawings.

[0073] Refer to Figures 1 to 4 As shown, the ankylosing spondylitis backrest pillow provided according to the embodiments of the present invention includes a base 10, a backrest cushion and a driving mechanism 30.

[0074] Specifically, the base 10 has a headrest portion 11, which is adapted to support the patient's head. Preferably, the headrest portion 11 may include a multi-layer structure, such as a three-layer structure. The inner layer is made of a material with higher hardness to play a supporting role, such as plastic. The middle layer may be made of a material with lower hardness, such as pillow core cotton, etc. The outer layer is wrapped with fabric. In this way, the comfort is better.

[0075] The shoulder and back cushion 20 includes a neck pillow roller 201, a plurality of back pillow rollers 202 and a connecting surface material 203. The neck pillow roller 201 is fixedly arranged on the base 10 and adjacent to the headrest portion 11. The neck pillow roller 201 extends along a first direction and is adapted to support the patient's neck; a plurality of the back pillow rollers 202 are movably arranged on the base 10 and are spaced apart along a second direction. Each of the back pillow rollers 202 is parallel to the neck pillow roller 201, and the second direction is perpendicular to the first direction; the connecting surface material 203 is wrapped outside the neck pillow roller 201 and the plurality of back pillow rollers 202 to connect the neck pillow roller 201 and the plurality of back pillow rollers 202 into one body and form a concave arc-shaped backrest surface S20 adapted to support the patient's shoulder and back. Preferably, the connecting surface material 203 may be a flexible material, such as pillow core cotton and the fabric wrapped on the surface of the pillow core cotton, etc.

[0076] The driving mechanism 30 is connected to the last back pillow roller 202 among the plurality of back pillow rollers 202 that is far from the neck pillow roller 201, and is used to drive the last back pillow roller 202 to move so as to change the radian of the backrest surface S20.

[0077] That is to say, the shoulder and back pad 20 mainly consists of a neck pillow roller 201, multiple back pillow rollers 202 and a connecting surface material 203. The neck pillow roller 201 and the multiple back pillow rollers 202 are connected into one body by the connecting surface material 203, so that the shoulder and back pad 20 forms a back pillow surface S20, and the back pillow surface S20 can be used to support the shoulder and back of the patient. In addition, since the neck pillow roller 201 is fixed while the back pillow rollers 202 can move relatively, when the driving mechanism 30 drives the last back pillow roller 202 to move, the entire shoulder and back pad 20 will be flattened or further recessed and bent. In this way, the radian of the back pillow surface S20 can be adjusted. By adjusting the radian, it can adapt to patients with different conditions, so that the radian of the back pillow surface S20 adapts to the radian of the shoulder and back of the patient.

[0078] According to the ankylosing spondylitis backrest pillow provided by the embodiment of the present invention, the connecting surface material 203 is wrapped outside the neck pillow roller 201 and the multiple back pillow rollers 202 to connect the neck pillow roller 201 and the multiple back pillow rollers 202 into one body and form a concave arc-shaped back pillow surface S20 suitable for supporting the shoulder and back of the patient. On the one hand, when the driving mechanism 30 drives the last back pillow roller 202 to move, each back pillow roller 202 can be adaptively raised or lowered, thereby adjusting the radian of the back pillow surface S20. In this way, it can adapt to different usage requirements, such as patients with different conditions. On the other hand, this shoulder and back pad 20 composed of multiple back pillow rollers 202 is similar to the multi-vertebral structure of the spine, and has better support for the back. Moreover, when the driving mechanism 30 drives the last back pillow roller 202 to move, each back pillow roller 202 can be self-adaptively adjusted instead of being raised or lowered as a whole, and the radian adjustment of its back pillow surface S20 is more flexible, and the adaptability to the patient's back after adjustment is better.

[0079] In an embodiment of the present invention, the base 10 includes a bottom plate 101 and two side plates 102(103). Among them, the two side plates 102(103) are oppositely arranged on the bottom plate 101 and define an accommodation space X10; the headrest part 11 and the shoulder and back pad 20 are arranged in the accommodation space X10 between the two side plates 102(103).

[0080] In this embodiment, by using the accommodation space X10 between the first side plate 102(103) and the second side plate 102(103) to install the headrest part 11 and the shoulder and back pad 20, the structure can be made more simple and compact. Moreover, with the support of the first side plate 102(103) and the second side plate 102(103), the shoulder and back plate can have a more stable and reliable support effect on the shoulder and back of the patient.

[0081] In some embodiments of the present invention, an activity groove H10 is provided on the inner wall of each of the side plates 102 (103); the activity groove H10 extends along the first direction and forms a concave arc shape, and the height of one end of the activity groove H10 away from the headrest portion 11 is lower than the height of the end adjacent to the headrest portion 11. Sliding portions 2021 are respectively provided at both ends of each of the backrest rollers 202, and the sliding portions 2021 at both ends of the backrest roller 202 are respectively arranged in the activity grooves H10 of the two side plates 102 (103) and are movable therein.

[0082] That is to say, the sliding portions 2021 at both ends of the backrest roller 202 cooperate with the activity grooves H10 on the two side plates 102 (103). When the driving mechanism 30 drives the last backrest roller 202 to move, the sliding portions 2021 at both ends of the other backrest rollers 202 move in the activity grooves H10. Since the activity grooves H10 are formed in a concave arc shape, each of the backrest rollers 202 can be arranged in a concave arc shape, ensuring that the backrest surface S20 of the shoulder and back pad 20 is in a concave arc shape. In addition, the activity grooves H10 can be used to limit the movement range of the sliding portions 2021 at both ends of the backrest roller 202, and further limit the arc adjustment range of the shoulder and back pad 20.

[0083] Advantageously, the activity groove H10 includes a limit groove H101 and an activity groove H10. Among them, one end of the limit groove H101 extends along the first direction and forms a concave arc shape, and one end of the limit groove H101 is adjacent to the headrest portion 11. The sliding groove H102 communicates with the other end of the limit groove H101. The groove width of the limit groove H101 is larger than the diameter of the sliding portion 2021, and the groove width of the limit groove H101 first increases and then decreases from one end to the other end, and the groove width of the sliding groove H102 is adapted to the diameter of the sliding portion 2021.

[0084] In this embodiment, since the width of the sliding groove H102 is adapted to the diameter of the sliding portion 2021, when the driving mechanism 30 drives the last backrest roller 202 to move, the sliding portions 2021 at both ends of the backrest roller 202 can only slide horizontally in the sliding groove H102. While the other backrest rollers 202 move horizontally accordingly, they will also move in the up and down directions, so that each of the backrest rollers 202 can be adjusted adaptively, and the adjusted backrest surface S20 fits better with the shoulder and back of the patient. In addition, since the groove width of the limit groove H101 first increases and then decreases from one end to the other end, the adjustment range of the backrest rollers 202 at both ends can be made small, while the adjustment range of the backrest rollers 202 in the middle is large. Correspondingly, the adjustment range of the middle part of the concave arc-shaped backrest surface S20 is larger, and the adjustment range at both ends is smaller. This adjustment of the range is more suitable for the change in the bending degree of the patient's shoulder and back, and further improves the fit between the adjusted backrest surface S20 and the patient's shoulder and back.

[0085] In one embodiment of the present invention, the connecting surface member 203 includes a wrapping portion 2031 wrapped around the neck pillow roller 201 and the back pillow roller 202, and a connecting portion 2032 connected between the respective wrapping portions 2031. In this way, by using the wrapping portion 2031 to wrap around the outer surface of the neck pillow roller 201, the comfort when the wrapping portion 2031 contacts the patient can be better, and the connecting portion 2032 between the respective wrapping portions 2031 can connect the respective back pillow rollers 202 into one body.

[0086] In one embodiment of the present invention, the driving mechanism 30 includes a connecting rod 301 and a driving assembly 302. Among them, one end of the connecting rod 301 is pivotally connected to the sliding portion 2021 of the last back pillow roller 202; the driving assembly 302 is provided on the base 10 and pivotally connected to the other end of the connecting rod 301 for driving the connecting rod 301 to move.

[0087] That is to say, the two ends of the connecting rod 301 are respectively pivotally connected to the sliding portion 2021 of the back pillow roller 202 and the driving assembly 302. When the driving assembly 302 moves, it can drive the connecting rod 301 to move, and the connecting rod 301 further pushes the sliding portion 2021 of the back pillow roller 202 to slide in the sliding groove H102, thereby realizing the driving of the back pillow roller 202 and adjusting the curvature of the back pillow surface S20. The structure is simple and the driving is reliable.

[0088] In one embodiment of the present invention, the driving assembly 302 includes a fixed seat 3021, a lead screw 3022, a guide rod 3023, a sleeve 3024 and a driving motor 3025. Among them, the fixed seat 3021 has two opposite supports 3021a; the lead screw 3022 is pivotally provided on one of the two supports 3021a. The guide rod 3023 is fixed on the other of the two supports 3021a and is coaxially arranged with the lead screw 3022. One end of the sleeve 3024 has internal threads and is in threaded cooperation with the lead screw 3022, and the other end of the sleeve 3024 is in sliding cooperation with the guide rod 3023; the driving motor 3025 is connected to the lead screw 3022 for driving the lead screw 3022 to rotate. A pivot shaft is provided on the sleeve 3024, and the pivot shaft moves with the sleeve 3024 and is pivotally connected to the other end of the connecting rod 301.

[0089] When the drive motor 3025 operates, it drives the lead screw 3022 to rotate. Since one end of the sleeve 3024 is in threaded engagement with the lead screw 3022, when the lead screw 3022 rotates, it can drive the sleeve 3024 to move along the lead screw 3022, and then drive the connecting rod 301 through the sleeve 3024 and the pivot shaft thereon. Its structure is simple and the drive is reliable. In addition, since the other end of the sleeve 3024 is in sliding engagement with the guide rod 3023, the sliding engagement between the guide rod 3023 and the sleeve 3024 can make the movement of the sleeve 3024 smoother and more reliable.

[0090] Advantageously, the drive assembly 302 is provided on the base plate 101 and located within the accommodation space X10, and the connecting rod 301 is located outside the side plates 102(103). In this way, the drive assembly 302 can be hidden within the accommodation space X10, making the structure simpler and more compact, and the appearance more concise and beautiful.

[0091] In addition, a control unit and adjustment buttons can be arranged on the side plates 102(103). By triggering an adjustment signal through the adjustment buttons, the controller controls the operation of the drive motor 3025 according to the adjustment signal, and thus the curvature of the backrest surface S20 on the shoulder pad 20 can be adjusted as needed, making the operation simpler and more convenient.

[0092] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0093] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An ankylosing spondylitis backrest pillow, characterized in that, it includes: a base, the base having a headrest portion adapted to support the patient's head; a shoulder and back pad, the shoulder and back pad including a neck pillow roller, a plurality of back pillow rollers and a connecting surface material, the neck pillow roller being fixedly provided on the base and adjacent to the headrest portion, the neck pillow roller extending in a first direction and adapted to support the patient's neck; the plurality of back pillow rollers being movably provided on the base and arranged at intervals in a second direction, each back pillow roller being parallel to the neck pillow roller, the second direction being perpendicular to the first direction; the connecting surface material being wrapped outside the neck pillow roller and the plurality of back pillow rollers to connect the neck pillow roller and the plurality of back pillow rollers into one body and form a concave arc-shaped back pillow surface adapted to support the patient's shoulder and back; a driving mechanism, the driving mechanism being connected to the last back pillow roller among the plurality of back pillow rollers that is far from the neck pillow roller, for driving the last back pillow roller to move so as to change the radian of the back pillow surface; the base includes a bottom plate and two side plates, the two side plates being relatively provided on the bottom plate and defining an accommodation space; the headrest portion and the shoulder and back pad are provided in the accommodation space between the two side plates; an activity groove is provided on the inner wall of each side plate; the activity groove extends in the first direction and forms a concave arc shape, and the height of one end of the activity groove far from the headrest portion is lower than the height of the end adjacent to the headrest portion; sliding portions are respectively provided at both ends of each back pillow roller, and the sliding portions at both ends of the back pillow roller are respectively provided in the activity grooves of the two side plates and are movable therein; the activity groove includes a limit groove and a sliding groove, one end of the limit groove extends in the first direction and forms a concave arc shape, and one end of the limit groove is adjacent to the headrest portion; the sliding groove communicates with the other end of the limit groove; wherein, the width of the limit groove is greater than the diameter of the sliding portion, and the width of the limit groove increases first and then decreases from one end to the other end, and the width of the sliding groove is adapted to the diameter of the sliding portion; the connecting surface material includes a wrapping portion wrapped outside the neck pillow roller and the back pillow rollers and a connecting portion connected between the respective wrapping portions.

2. The ankylosing spondylitis backrest pillow according to claim 1, characterized in that, the driving mechanism includes: a connecting rod, one end of the connecting rod being pivotally connected to the sliding portion of the last back pillow roller; a driving assembly, the driving assembly being provided on the base and pivotally connected to the other end of the connecting rod for driving the connecting rod to move.

3. The ankylosing spondylitis backrest pillow according to claim 2, characterized in that, the driving assembly includes: a fixed seat, the fixed seat having two opposite supports; a lead screw, the lead screw being pivotally provided on one of the two supports; a guide rod, the guide rod being fixed on the other of the two supports and arranged coaxially with the lead screw; a sleeve, one end of the sleeve having an internal thread and being in threaded cooperation with the lead screw, and the other end of the sleeve being in sliding cooperation with the guide rod; a driving motor, the driving motor being connected to the lead screw for driving the lead screw to rotate; Wherein, a pivot shaft is provided on the sleeve, and the pivot shaft moves with the sleeve and is pivotally connected to the other end of the connecting rod.

4. The ankylosing spondylitis backrest pillow according to claim 2, characterized in that the driving assembly is provided on the bottom plate and located within the accommodating space, and the connecting rod is located outside the side plate.

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