A head-pelvis ring traction and turning pillow device

Abstract

The present application relates to the technical field of medical devices, and discloses a head-pelvis ring traction and turning-over pillow device, which comprises a first base and a second base, a connecting module is arranged between the first base and the second base, an inner side of the first base is provided with a back supporting module, the back supporting module comprises a first sliding rail fixedly connected to the inner side of the first base, both ends of the first sliding rail are slidably connected with a first movable seat, the top of each of the two first movable seats is fixedly connected with a first extension pad, a middle part of the first base is provided with an adjusting piece for driving the two first movable seats to slide towards or away from each other, a back supporting piece is arranged between the two first movable seats, and a lateral supporting piece is movably connected to the outer side of each of the two first movable seats; an inner side of the second base is provided with a hip supporting module. The adjustable modular structure, integrated active ventilation system and safe body position fine adjustment function of the head-pelvis ring traction and turning-over pillow device can significantly improve the bed comfort and nursing safety of patients subjected to head-pelvis ring traction.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a head-pelvic ring traction turning pillow device. Background Technology

[0002] Head-pelvic traction is a powerful traction technique for treating complex spinal deformities such as severe scoliosis and kyphosis. It gradually corrects spinal deformities by applying continuous and slow traction force to the patient's head (wearing a head ring) and pelvis (implanted pelvic ring). The treatment period usually lasts for several weeks or even months, during which patients need to stay in bed for a long time. Due to the fixation of the traction device, the range of motion is severely limited, especially turning over independently is extremely difficult.

[0003] Current methods primarily involve placing appropriately sized pads on the patient's back and buttocks for supplemental support, but this method has significant technical limitations:

[0004] First, existing ordinary turning pillows cannot be specially adapted for patients undergoing cephalopelvic traction. The back and buttocks are supported as a single plane, and the length of each segment (i.e., the back-buttock support spacing) cannot be adjusted according to the patient's height and body shape, which may lead to inaccurate support position and affect the traction effect or comfort;

[0005] Secondly, routine care relies on nurses manually turning the patient periodically (which is extremely difficult and risky for patients with cephalopelvic traction) and using static air mattresses or sponge pads. These methods lack active ventilation and temperature and humidity regulation for key pressure areas such as the buttocks. Static support can only distribute pressure but cannot improve the skin microenvironment (hot and humid), and moisture is a key risk factor for pressure ulcer formation.

[0006] Third, existing devices typically lack the ability to assist patients in making safe and controllable lateral positioning adjustments. Patients are almost entirely in a passive supine position, increasing the difficulty of nursing care (such as back skin examination and cleaning) and patient discomfort.

[0007] In view of this, the present invention proposes a head and pelvic ring traction turning pillow device. Summary of the Invention

[0008] This invention proposes a head and pelvic ring traction turning pillow device, which solves the problem in the prior art that the length of the sections cannot be adjusted according to the patient's height and body shape, thus affecting the patient's comfort.

[0009] The technical solution of the present invention is as follows: A head and pelvic ring traction turning pillow device includes a first base and a second base. A connecting module for adjusting the distance between the first base and the second base is provided between them. A back support module is provided on the inner side of the first base. The back support module includes a first slide rail fixedly connected to the inner side of the first base. A first movable seat is slidably connected to both ends of the first slide rail. A first extension pad is fixedly connected to the top of each of the two first movable seats. An adjustment member for driving the two first movable seats to slide towards or away from each other is provided in the middle of the first base. A back support member for supporting the back is provided between the two first movable seats. Side supports are movably connected to the outer sides of each of the two first movable seats. A hip support module for supporting the patient's hips is provided on the inner side of the second base.

[0010] Preferably, the adjusting component includes a first motor fixedly installed inside the first base, the output shaft of the first motor being fixedly connected to a transmission gear, and toothed plates being fixedly connected to the inner sides of both first movable seats, both of which mesh with the transmission gear.

[0011] Preferably, the back support includes a sleeve fixedly connected to the outside of one of the first movable seats, a sleeve plate fixedly connected to the outside of the other first movable seat, the end of the sleeve plate away from the corresponding first movable seat being slidably connected to the sleeve, a memory foam pad fixedly connected to the top of the sleeve plate and the sleeve plate, a first airbag embedded in the memory foam pad, a first air pump fixedly installed on the inside of the first base, and the air outlet of the first air pump being connected to the inside of the first airbag through a conduit.

[0012] Preferably, the side support includes a rotating seat rotatably connected to the outside of the corresponding first movable seat. Guide rods are inserted into the four corners of the rotating seat. The top ends of the four guide rods are fixedly connected to the same side plate. An auxiliary side pad is fixedly connected to the top of the side plate. A driving member for driving the rotating seat to rotate is provided on the inner side of the first movable seat.

[0013] Preferably, a second airbag is fixedly connected to the inner side of the rotating seat, and a second air pump is fixedly installed at one end of the inner side of the rotating seat. The air outlet of the second air pump is connected to the inside of the second airbag through a conduit.

[0014] Preferably, the driving component includes a worm gear fixedly connected to the rotating seat on the same axis, a second motor is fixedly installed on the inner side of the first movable seat, and a worm is fixedly connected to the output shaft of the second motor, with the worm gear meshing with the worm.

[0015] Preferably, the hip support module includes a second slide rail fixedly connected to the inner side of the second base, with a second movable seat slidably connected to both ends of the second slide rail. A second extension pad is fixedly connected to the top of each of the two second movable seats. A hip support member for supporting the hips is provided between the two second movable seats. Several arrayed air holes communicating with the interior of the second movable seats are provided on each of the two second extension pads. A ventilation member for introducing air into the interior of the two second movable seats is provided on the inner side of the second base.

[0016] Preferably, the hip support and the back support have the same structure, and the support length of the hip support is less than that of the back support.

[0017] Preferably, the ventilation component includes a miniature fan fixedly installed inside the second base. The outlet end of the miniature fan is fixedly connected to a three-way pipe, and both ends of the three-way pipe are fixedly connected to corrugated ducts. The outlet ends of the two corrugated ducts are respectively connected to the inner sides of the two second movable seats.

[0018] Preferably, the connecting module includes a sleeve frame fixedly connected to the outside of the first base, a fixing block fixedly connected to the same side of the second base, a connecting plate fixedly connected to the outside of the fixing block, the connecting plate passing through the sleeve frame and slidably connected to the sleeve frame, a plurality of equidistant positioning holes being formed on the connecting plate along its length direction, and a positioning bolt threaded into any one of the positioning holes being inserted into the sleeve frame.

[0019] The working principle and beneficial effects of this invention are as follows:

[0020] 1. The distance between the first base (back support) and the second base (hip support) can be manually adjusted via the connecting module (consisting of a frame, connecting plate, positioning holes, and positioning bolts). This ensures that the support points accurately correspond to the patient's physiological position, adapting to different heights from children to adults, and ensuring the effectiveness of the traction line.

[0021] 2. The two first movable seats in the back support module are driven by an adjusting component consisting of a first motor, transmission gears, and a double-toothed plate, allowing them to move synchronously, in opposite directions, or in opposite directions along the first slide rail. This enables precise, stepless adjustment of the back support width, adapting to different patients' shoulder widths and body shapes, providing stable and close-fitting support, reducing local pressure, and improving bed rest comfort.

[0022] 3. The back support features a retractable base and plate structure with a memory foam pad and an embedded first airbag. The first air pump inflates and deflates the airbag, actively and dynamically adjusting the support force and conformity to the patient's back (especially the spinal region). This not only adapts to different physiological curvatures but also promotes blood circulation and prevents pressure sores through pressure changes.

[0023] 4. The innovation of the hip support module lies in its integrated ventilation system. Airflow generated by a miniature fan is delivered into the cavity of the second movable seat through corrugated ducts and a T-junction, and finally flows out evenly from the array of pores distributed on the surface of the second extension pad. This design continuously keeps the skin surface of the patient's buttocks and groin dry, effectively reducing local temperature and humidity, fundamentally improving the skin microenvironment, and significantly preventing and delaying the occurrence of pressure ulcers.

[0024] 5. The support height of the side support is not mechanically rigidly adjustable, but rather raised and lowered by inflating and deflating the second airbag using a second air pump. This flexible adjustment better conforms to the patient's body contours, providing well-buffered lateral restraint and support, avoiding discomfort caused by rigid compression, and enhancing supine stability.

[0025] 6. The side support can be rotated as a whole via a drive mechanism consisting of a second motor, a worm gear, and a worm wheel. This allows caregivers to adjust the side support to a specific angle to assist patients in safely and slightly turning to their side, or to help patients maintain a side-lying position during care, greatly facilitating back skin examinations, cleaning, and other nursing procedures. Attached Figure Description

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 This is a schematic diagram of the structure of a head and pelvis ring traction turning pillow device according to the present invention;

[0028] Figure 2 This is a schematic diagram of the back support module of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the adjusting component of the present invention;

[0030] Figure 4 This is a schematic diagram of the back support component of the present invention;

[0031] Figure 5 This is a schematic diagram of the side support component of the present invention. Figure 1 ;

[0032] Figure 6 This is a schematic diagram of the side support component of the present invention. Figure 2 ;

[0033] Figure 7 for Figure 5 Enlarged structural diagram at point A;

[0034] Figure 8 This is a schematic diagram of the hip support module of the present invention;

[0035] Figure 9 This is a schematic diagram of the ventilation component of the present invention;

[0036] Figure 10 This is a schematic diagram of the connection module of the present invention.

[0037] In the diagram: 1. First base; 2. Second base; 3. Connecting module; 31. Sleeve frame; 32. Fixing block; 33. Connecting plate; 34. Positioning hole; 35. Positioning bolt; 4. Back support module; 41. First slide rail; 42. First movable seat; 43. First extension pad; 44. Adjusting component; 441. First motor; 442. Transmission gear; 443. Gear plate; 45. Back support component; 451. Sleeve; 452. Sleeve plate; 453. Memory foam pad; 454. First airbag; 455. First... 46. ​​Air pump; 461. Side support; 462. Rotating seat; 463. Guide rod; 464. Side plate; 465. Auxiliary side pad; 466. Second airbag; 467. Second air pump; 47. Drive component; 471. Worm gear; 472. Second motor; 473. Worm; 5. Hip support module; 51. Second slide rail; 52. Second movable seat; 53. Second extension pad; 54. Hip support component; 55. Air hole; 56. Ventilation component; 561. Miniature fan; 562. T-pipe; 563. Corrugated duct. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 10 As shown, this embodiment proposes a head-pelvic ring traction turning pillow device, including a first base 1 and a second base 2. A connecting module 3 for adjusting the distance between the first base 1 and the second base 2 is provided between them. A back support module 4 is provided on the inner side of the first base 1. The back support module 4 includes a first slide rail 41 fixedly connected to the inner side of the first base 1. Both ends of the first slide rail 41 are slidably connected to first movable seats 42. The tops of the two first movable seats 42 are fixedly connected to first extension pads 43. An adjustment member 44 for driving the two first movable seats 42 to slide towards or away from each other is provided in the middle of the first base 1. A back support member 45 for supporting the back is provided between the two first movable seats 42. Side support members 46 are movably connected to the outer sides of the two first movable seats 42. A hip support module 5 for supporting the patient's hips is provided on the inner side of the second base 2.

[0040] In this embodiment, the main frame is formed by connecting a first base 1 and a second base 2 via a connecting module 3. The back support module 4 on the inner side of the first base 1 supports the patient's back. Its core feature is that two first movable seats 42 can move towards or away from each other on a first slide rail 41, thereby adjusting the support width. A back support 45 is provided between the two first movable seats 42 for direct support of the spinal region, while a movable side support 46 is provided on the outer side to provide lateral support. The hip support module 5 on the inner side of the second base 2 independently supports the patient's hips. By adjusting the distance between the first base 1 and the second base 2 via the connecting module 3, it can accommodate patients of different heights, ensuring that the back support and hip support are positioned in the corresponding physiological positions of the human body.

[0041] This design provides independent, segmented support for the back and buttocks of patients undergoing cephalopelvic traction in a supine position. The adjustable width of the back support accommodates patients of different body types, providing stable and appropriate support for the trunk, helping to maintain the traction line, reduce local pressure, and improve bed rest comfort. The independent support for the buttocks, combined with ventilation, effectively mitigates the risk of pressure sores on the buttocks caused by prolonged bed rest.

[0042] In a further preferred embodiment of the present invention, the adjusting member 44 includes a first motor 441 fixedly installed inside the first base 1, the output shaft of the first motor 441 is fixedly connected to a transmission gear 442, and the inner sides of the two first movable seats 42 are fixedly connected to toothed plates 443, both of which mesh with the transmission gear 442.

[0043] In this embodiment, when the width of the back support needs to be adjusted, the first motor 441 starts, driving the transmission gear 442 on its output shaft to rotate. Since the toothed plates 443 on the inner sides of the two first movable seats 42 are meshed with the same transmission gear 442, the rotation of the transmission gear 442 will synchronously drive the two toothed plates 443 to move in opposite directions, thereby causing the two first movable seats 42 to slide precisely towards each other (narrowing) or away from each other (widening) along the first slide rail 41.

[0044] This design employs a motor in conjunction with a gear and toothed plate drive to achieve synchronous, symmetrical, and linear movement of the two first movable seats 42. This drive method offers high adjustment precision and smooth operation, enabling stepless or precise segmented adjustment of the back support width. This allows the back support module 4 to accurately adapt to the shoulder width of different patients, improving the universality and personalized support effect of the device.

[0045] In a further preferred embodiment of the present invention, the back support 45 includes a sleeve 451 fixedly connected to the outside of one of the first movable seats 42, and a sleeve plate 452 fixedly connected to the outside of the other first movable seat 42. The end of the sleeve plate 452 away from the corresponding first movable seat 42 is slidably connected to the sleeve 451. A memory foam pad 453 is fixedly connected to the top of the sleeve 451 and the top of the sleeve plate 452. A first airbag 454 is embedded in the memory foam pad 453. A first air pump 455 is fixedly installed on the inner side of the first base 1. The air outlet of the first air pump 455 is connected to the inside of the first airbag 454 through a conduit.

[0046] In this embodiment, the width of the back support 45 automatically adjusts as the two first movable seats 42 move. The sleeve 452 can slide within the sleeve 451, thereby extending or contracting. The memory foam pad 453 covering it provides basic material-based pressure relief and shaping support. The first air pump 455 can inflate or deflate the first air bladder 454 embedded within the memory foam pad 453, thereby changing the inflation and pressure of the first air bladder 454. By adjusting the pressure of the first air bladder 454, the support force and fit of the memory foam pad 453 on the patient's back, especially the spinal region, can be altered; the sliding connection structure between the sleeve 451 and the sleeve 452 ensures the continuity and stability of the back support width adjustment. The memory foam pad 453 provides a soft initial contact surface and temperature adaptability. Combined with the pressure adjustment of the first air bladder 454, active and dynamic adjustment of the back support stiffness and curvature is achieved. This not only adapts to the physiological curvature of different patients, but also promotes blood circulation in the back through periodic or strategic pressure changes, prevents pressure sores, and may assist in the fine-tuning of spinal position to some extent.

[0047] In a further preferred embodiment of the present invention, the side support 46 includes a rotating seat 461 rotatably connected to the outside of the corresponding first movable seat 42. Guide rods 462 are inserted into each of the four corners of the rotating seat 461. The top ends of the four guide rods 462 are fixedly connected to the same side plate 463. An auxiliary side pad 464 is fixedly connected to the top of the side plate 463. A second airbag 465 is fixedly connected to the inner side of the rotating seat 461. A second air pump 466 is fixedly installed at one end of the inner side of the rotating seat 461. The air outlet of the second air pump 466 is connected to the inside of the second airbag 465 through a conduit. A driving member 47 for driving the rotating seat 461 to rotate is provided on the inner side of the first movable seat 42.

[0048] In this embodiment, the side support 46 is connected to the first movable seat 42 via a rotating seat 461, allowing for angular rotation. The height of the lateral support is adjusted by inflating and deflating the second airbag 465 using a second air pump 466. When inflated, the second airbag 465 expands, pushing the guide rod 462 and the side plate 463 and auxiliary side pad 464 connected to its top upwards, increasing the lateral support height and the wrapping effect on the torso; when deflated, it descends.

[0049] The second airbag 465 enables stepless and flexible adjustment of the lateral support height. This adjustment method has good cushioning and can provide flexible lateral restraint and support according to the patient's body contour, preventing the patient from tilting to one side when sleeping or relaxing, helping to maintain the neutral position of the trunk, enhancing the stability and sense of security in the supine position, while avoiding the pressure discomfort that may be caused by rigid mechanical adjustment;

[0050] In a further preferred embodiment of the present invention, the driving component 47 includes a worm gear 471 coaxially and fixedly connected to the rotating seat 461, a second motor 472 is fixedly installed on the inner side of the first movable seat 42, and a worm 473 is fixedly connected to the output shaft of the second motor 472, with the worm gear 471 meshing with the worm 473.

[0051] In this embodiment, the angular rotation of the side support 46 is controlled by the drive component 47. The second motor 472 starts, driving the worm gear 473 to rotate. The worm gear 473 meshes with the worm wheel 471, which is coaxially fixed on the rotating seat 461, thereby converting the rotational motion of the worm gear 473 into the rotational motion of the worm wheel 471 and the rotating seat 461, ultimately driving the entire side support assembly to rotate around its axis.

[0052] By employing a worm gear 471 and worm 473 transmission, a self-locking characteristic is achieved. This means that when the second motor 472 stops working, the transmission mechanism automatically locks, preventing the side support 46 from accidentally rotating due to external force or patient movement, thus ensuring a stable and reliable support angle. This allows the side support 46 not only to be used for lateral support in a supine position but also to be adjusted to a specific angle to assist the patient in making slight side-lying movements or to facilitate clinical nursing care (such as back care).

[0053] In a further preferred embodiment of the present invention, the hip support module 5 includes a second slide rail 51 fixedly connected to the inner side of the second base 2. Both ends of the second slide rail 51 are slidably connected to second movable seats 52. The tops of both second movable seats 52 are fixedly connected to second extension pads 53. A hip support member 54 for supporting the hips is provided between the two second movable seats 52. The hip support member 54 has the same structure as the back support member 45, but its support length is less than that of the back support member 45. Both second extension pads 53 have openings... The second base 2 is provided with several arrayed air holes 55 that communicate with the interior of the second movable seat 52. The inner side of the second base 2 is provided with a ventilation component 56 for introducing air into the two second movable seats 52. The ventilation component 56 includes a miniature fan 561 fixedly installed inside the second base 2. The air outlet end of the miniature fan 561 is fixedly connected to a three-way pipe 562. Both ends of the three-way pipe 562 are fixedly connected to corrugated ducts 563. The outlet ends of the two corrugated ducts 563 are respectively connected to the inner side of the two second movable seats 52.

[0054] In this embodiment, the structure of the hip support module 5 is similar to that of the back support module 4, and its width is adjusted by sliding the second movable seat 52 on the second slide rail 51. The hip support component 54 provides the main support. A unique feature is that the two second extension pads 53 have air holes 55, and the internal cavity of the second movable seat 52 is connected to a miniature fan 561 via a corrugated conduit 563. After the miniature fan 561 is activated, ambient air is blown into the three-way pipe 562, distributed to the cavities of the two second movable seats 52 via the corrugated conduit 563, and finally flows out evenly from the air holes 55 on the surface of the second extension pads 53, acting on the skin of the patient's buttocks and groin.

[0055] The hip support 54 provides weight-bearing support. An integrated ventilation system is one of the core technological benefits: continuous or intermittent airflow through vents 55 directly acts on the skin area of ​​the buttocks, which is prone to sweating and pressure sores, effectively keeping the skin surface dry, reducing local temperature and humidity, and improving the microenvironment, thereby significantly preventing and delaying the occurrence of pressure sores. The adjustable width of the second extension pad 53 ensures that the ventilation area can cover patients of different body types.

[0056] In a further preferred embodiment of the present invention, the connecting module 3 includes a sleeve frame 31 fixedly connected to the outside of the first base 1, a fixing block 32 fixedly connected to the same side of the second base 2, a connecting plate 33 fixedly connected to the outside of the fixing block 32, the connecting plate 33 passing through the sleeve frame 31 and slidably connected to the sleeve frame 31, and a plurality of equidistantly distributed positioning holes 34 are provided on the connecting plate 33 along its length direction, and a positioning bolt 35 that is threadedly engaged with any one of the positioning holes 34 is inserted into the sleeve frame 31.

[0057] In this embodiment, by manually pulling the first base 1 or the second base 2, the connecting plate 33 slides within the sleeve 31, thereby changing the distance between the first base 1 and the second base 2. Once the distance is adjusted to a position suitable for the patient's height, the positioning bolt 35 is screwed into the corresponding positioning hole 34 on the connecting plate 33. The tightening force generated by the thread locks the connecting plate 33 and the sleeve 31 together, thus fixing the spacing. This design provides a simple, low-cost, and reliable spacing adjustment and locking solution. The manual adjustment method is intuitive and quick, and the multiple positioning holes 34 provide multiple fixed positions, sufficient to accommodate the needs of patients of different heights from children to adults. Mechanical locking ensures that the relative positions of the back and hip support modules do not shift during patient use, guaranteeing the effectiveness and stability of the support effect.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A head and pelvic ring traction turning pillow device, comprising a first base (1) and a second base (2), characterized in that, A connecting module (3) for adjusting the distance between the first base (1) and the second base (2) is provided. A back support module (4) is provided on the inner side of the first base (1). The back support module (4) includes a first slide rail (41) fixedly connected to the inner side of the first base (1). Both ends of the first slide rail (41) are slidably connected to a first movable seat (42). The tops of the two first movable seats (42) are fixedly connected to a first extension pad (43). An adjustment member (44) for driving the two first movable seats (42) to slide towards or away from each other is provided in the middle of the first base (1). A back support member (45) for supporting the back is provided between the two first movable seats (42). Side support members (46) are movably connected to the outer sides of the two first movable seats (42). A hip support module (5) for supporting the patient's hips is provided on the inner side of the second base (2).

2. The head and pelvic ring traction turning pillow device according to claim 1, characterized in that, The adjusting component (44) includes a first motor (441) fixedly installed inside the first base (1). The output shaft of the first motor (441) is fixedly connected to a transmission gear (442). The inner sides of the two first movable seats (42) are fixedly connected to toothed plates (443), and the two toothed plates (443) mesh with the transmission gear (442).

3. The head and pelvic ring traction turning pillow device according to claim 1, characterized in that, The back support (45) includes a sleeve (451) fixedly connected to the outside of one of the first movable seats (42), and a sleeve plate (452) fixedly connected to the outside of the other first movable seat (42). The end of the sleeve plate (452) away from the corresponding first movable seat (42) is slidably connected to the sleeve (451). A memory foam pad (453) is fixedly connected to the top of the sleeve (451) and the sleeve plate (452). A first airbag (454) is embedded in the memory foam pad (453). A first air pump (455) is fixedly installed on the inside of the first base (1). The air outlet of the first air pump (455) is connected to the inside of the first airbag (454) through a conduit.

4. The head and pelvic ring traction turning pillow device according to claim 3, characterized in that, The side support (46) includes a rotating seat (461) rotatably connected to the outside of the corresponding first movable seat (42). Guide rods (462) are inserted into the four corners of the rotating seat (461). The top of the four guide rods (462) is fixedly connected to the same side plate (463). An auxiliary side pad (464) is fixedly connected to the top of the side plate (463). A driving member (47) for driving the rotating seat (461) to rotate is provided on the inner side of the first movable seat (42).

5. The head and pelvic ring traction turning pillow device according to claim 4, characterized in that, The inner side of the rotating seat (461) is fixedly connected to a second airbag (465), and a second air pump (466) is fixedly installed at one end of the inner side of the rotating seat (461). The air outlet of the second air pump (466) is connected to the inside of the second airbag (465) through a conduit.

6. The head and pelvic ring traction turning pillow device according to claim 4, characterized in that, The driving component (47) includes a worm wheel (471) that is coaxially fixedly connected to the rotating seat (461). A second motor (472) is fixedly installed on the inner side of the first movable seat (42). The output shaft of the second motor (472) is fixedly connected to a worm (473). The worm wheel (471) meshes with the worm (473).

7. The head and pelvic ring traction turning pillow device according to claim 3, characterized in that, The hip support module (5) includes a second slide rail (51) fixedly connected to the inner side of the second base (2). The two ends of the second slide rail (51) are slidably connected to a second movable seat (52). The top of the two second movable seats (52) is fixedly connected to a second extension pad (53). A hip support (54) for supporting the hip is provided between the two second movable seats (52). Several air holes (55) are provided on the two second extension pads (53) and are distributed in an array and communicate with the interior of the second movable seats (52). A ventilation component (56) for introducing air into the interior of the two second movable seats (52) is provided on the inner side of the second base (2).

8. The head and pelvic ring traction turning pillow device according to claim 7, characterized in that, The hip support (54) has the same structure as the back support (45), but the support length of the hip support (54) is less than that of the back support (45).

9. A head and pelvic ring traction turning pillow device according to claim 8, characterized in that, The ventilation component (56) includes a miniature fan (561) fixedly installed inside the second base (2). The outlet end of the miniature fan (561) is fixedly connected to a three-way pipe (562). Both ends of the three-way pipe (562) are fixedly connected to corrugated ducts (563). The outlet ends of the two corrugated ducts (563) are respectively connected to the inside of the two second movable seats (52).

10. A head and pelvic ring traction turning pillow device according to claim 1, characterized in that, The connecting module (3) includes a sleeve frame (31) fixedly connected to the outside of the first base (1), a fixing block (32) fixedly connected to the same side of the second base (2), a connecting plate (33) fixedly connected to the outside of the fixing block (32), the connecting plate (33) passing through the sleeve frame (31) and slidingly connected to the sleeve frame (31), a plurality of equidistant positioning holes (34) are provided on the connecting plate (33) along its length direction, and a positioning bolt (35) threadedly engaged with any one of the positioning holes (34) is inserted into the sleeve frame (31).

Images