Postoperative pressure-free pad with adjustable head-basin ring

By designing an adjustable head-pelvic ring postoperative pressure-free pad, the problem of pressure injury and difficulty in body position adjustment during head-pelvic ring traction surgery for patients with severe spinal deformities was solved, thereby improving patient comfort and lung function, and promoting surgical efficacy and recovery.

CN223887071UActive Publication Date: 2026-02-10HANGZHOU CITY XIAOSHAN DISTRICT TRADITIONAL CHINESE MEDICAL HOSPITAL
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Patent Information

Application Number
CN202520054344.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-02-10
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Patients with severe spinal deformities are prone to pressure injuries and difficulty in adjusting their position during cephalopelvic traction, which affects their comfort and traction cycle, leading to increased patient pain and limited lung function.

Method used

An adjustable head-pelvic ring postoperative pressure-free pad is designed, comprising a base plate, a backrest pad, and a backrest adjustment mechanism. The backrest pad can be flipped and its angle adjusted through mechanical linkages and manual controls. Combined with breathable materials and an adjustable anti-pressure pad, it suspends the protruding parts of the back, improving patient comfort and posture adjustment.

Benefits of technology

It effectively prevents pressure injuries, improves patient comfort and lung function, enhances sleep quality, and strengthens tolerance and recovery effects of cephalopelvic traction.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable post-operation pressure-free pad for a head-basin ring traction patient to lie down for rest, and solves the problems that the back of the patient protrudes out of the skin, pressure injury is easily caused, and the comfort and the wearing tolerance are affected due to the fact that the lying position is difficult to adjust. Comprising a bottom plate, a lower body cushion body, a backrest cushion body and a backrest adjusting mechanism, flexible cushion layers are attached to the surfaces of the lower body cushion body and the backrest cushion body, the lower body cushion body is fixedly connected with the bottom plate, a turnover seat is arranged in the middle of the bottom plate, and the front side portion of the backrest cushion body is connected with the turnover seat in a turnover mode. The backrest cushion body is provided with a first concave part suitable for embedding of the head ring, a second concave part suitable for embedding of the pelvic ring, a third concave part suitable for embedding of the correction rod and a back protrusion pressure-free structure. The backrest adjusting mechanism comprises a mechanical linkage part and a manual control part, the mechanical linkage part is connected with the backrest cushion body and the bottom plate so as to control the backrest cushion body to turn over up and down relative to the bottom plate, and the manual control part is connected with the mechanical linkage part so as to control the transmission action of the mechanical linkage part.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical nursing instrument technical field, concretely is a kind of adjustable head basin ring postoperative pressure-free pad. BACKGROUND

[0002] Severe spinal deformities, usually considered as severe spinal deformities when kyphosis or scoliosis angle is greater than 90 °. The disease greatly affects the patient's spinal cord function and cardiopulmonary function, and affects the patient's physical appearance, and greatly affects the patient's psychology and daily life, and significantly increases the late mortality.

[0003] At present, for severe spinal deformities, usually one-stage head-pelvic ring traction, two-stage posterior osteotomy orthopedic internal fixation is adopted to achieve better orthopedic effect. Head-pelvic ring traction is the main traction method used in the treatment of severe spinal deformities in the department. The head-pelvic ring traction device is fixed on the skull and ilium in 4-point symmetry, the head ring is installed on the skull, the pelvic ring is installed on the ilium, and four correction rods are used to connect the head ring and the pelvic ring. By sliding the bolts on the correction rod, the traction of the spine is completed, which is continuous and gradual, safe during the traction process, and can realize 24-hour continuous traction. However, the current traction treatment method has some problems that are difficult to solve: due to the limitation of the head ring and the pelvic ring, the patient can only take a supine position when resting in bed, and the skin of the patient's kyphosis is prone to pressure injury, which prolongs the patient's operation period and increases the patient's pain; the patient's body position cannot be adjusted and changed for a long time, which leads to poor patient comfort, affects sleep quality, reduces the tolerance of head-pelvic ring traction, prolongs the traction period, slows down the improvement of chest volume, and affects the patient's lung function and nutrition improvement.

[0004] Therefore, in view of the above-mentioned problems faced by patients with head-pelvic ring traction, the technical field urgently needs a device for assisting patients to lie down to solve the problems caused by the compression of the protruding part and the difficulty in adjusting the body position. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the above-mentioned background technology, and proposes a kind of adjustable head-pelvic ring postoperative pressure-free pad for the head-pelvic ring traction patient to lie down and rest, to solve the problems of easy pressure injury of the skin of the patient's back and difficult adjustment of lying position, which affect comfort and wearing tolerance.

[0006] In order to realize the above-mentioned utility model purposes, the utility model adopts the following technical solutions:

[0007] The adjustable head-pelvis ring postoperative pressure relief pad is used for lying of a patient wearing a head-pelvis ring traction device, the head-pelvis ring traction device comprises a head ring, a pelvis ring and a correction rod, and the adjustable head-pelvis ring postoperative pressure relief pad comprises a bottom plate, a lower body pad body, a backrest pad body and a backrest adjusting mechanism, the surface of the lower body pad body and the backrest pad body is attached with a flexible pad layer, the lower body pad body is arranged on the bottom plate corresponding to the front half and the rear half of the bottom plate respectively, and the lower body pad body is fixedly connected with the bottom plate, a turnover seat is arranged in the middle of the bottom plate, the front side of the backrest pad body is turnably connected with the turnover seat, the backrest pad body is provided with a first recess portion adapted to embed the head ring, a second recess portion adapted to embed the pelvis ring, a third recess portion adapted to embed the correction rod and a back convex pressure relief structure, the backrest adjusting mechanism comprises a mechanical linkage and a manual control member, the mechanical linkage is connected with the backrest pad body and the bottom plate to control the up-down turnover of the backrest pad body relative to the bottom plate, and the manual control member is connected with the mechanical linkage to control the transmission action of the mechanical linkage.

[0008] As preferred, the mechanical linkage comprises a lead screw, a top rod and a sliding block, the lead screw is rotatably arranged on the bottom plate, the sliding block is threadedly connected with the lead screw, and the sliding block is slidably connected with the bottom plate, one end of the top rod is rotatably connected with the backrest pad body, and the other end of the top rod is rotatably connected with the sliding block, the manual control member comprises a driving rod and a hand lever, the driving rod is rotatably connected with the bottom plate, the inner end of the driving rod is connected with the lead screw through a bevel gear, and the outer end of the driving rod extends to the outside of the bottom plate and is connected with the hand lever, the backrest pad body supports the back of the patient, the hand lever is shaken to drive the lead screw to rotate, and then the sliding block is driven to move forward or backward, when the sliding block moves forward, the top rod is gradually lowered, and then the backrest pad body is turned down until it falls on the bottom plate, at this time, the patient tends to be in a flat lying state, when the sliding block moves backward, the top rod is gradually lifted, and then the backrest pad body is turned up to a certain angle, at this time, the patient tends to be in a state of lifting the back to a certain angle.

[0009] As preferred, a long strip-shaped receiving groove is arranged on the bottom plate, the lead screw is arranged at the bottom of the receiving groove, the sliding block is slidably arranged in the receiving groove, and the receiving groove is provided with a reserved space above the lead screw for embedding the top rod, when the lead screw falls to the bottom, the lead screw is embedded in the reserved space of the receiving groove.

[0010] As preferred, the first recess portion is located at the rear side of the backrest pad body corresponding to the head region, the second recess portion is located at the front side of the backrest pad body corresponding to the waist and pelvis region, the backrest pad body comprises two third recess portions, the two third recess portions are respectively located at the left and right sides of the backrest pad body, and the two ends of the third recess portion are continuously arranged with the first recess portion and the second recess portion, the area surrounded by the first recess portion, the second recess portion and the third recess portion forms a support back pad which contacts the back.

[0011] As preferred, the back convex pressure relief structure comprises a hollow portion, and the hollow portion is located in the support back pad.

[0012] Preferably, the back protrusion pressure-free structure further includes an adjustable anti-pressure pad for the back protrusion. The adjustable anti-pressure pad includes an annular pad and an outer movable pad. A cavity is formed in the middle of the annular pad. The outer edge of the annular pad is fixedly connected to the outer movable pad. The outer movable pad is made of flexible material and is movably connected to the supporting back pad. The annular pad is located in the hollow part and its position is adjusted as the outer movable pad moves.

[0013] Preferably, the outer movable pad adopts a ring-shaped structure, and the bottom of the support back pad is provided with a channel for the outer movable pad to pass through. The outer movable pad is sleeved on the support back pad, and the ring pad is only connected to the upper side of the outer movable pad. The outer movable pad can slide back and forth and rotate left and right relative to the support back pad.

[0014] Preferably, one or two or all of the lower body pad, support back pad, and adjustable anti-pressure pad are made of breathable material or have a porous breathable structure.

[0015] Compared with existing technologies, the adjustable cephalopelvic ring postoperative pressure-free pad using this solution has the following beneficial effects:

[0016] 1. The entire device can be placed on a bed for patients undergoing cephalopelvic traction to lie down and rest. Its backrest cushion is designed with a pressure-free structure for the protruding parts of the back, allowing the skin at these points to be suspended to avoid pressure. In the preferred embodiment, the pressure-free structure for the protruding back is designed as an adjustable anti-pressure pad. This allows the ring-shaped pad to be adjusted in multiple directions (front, back, left, and right) according to the different locations of the protrusions on different patients. This enables the ring-shaped pad to support and suspend various protruding parts of the back, providing better flexibility and protection against pressure injuries.

[0017] Second, the backrest cushion has a swing function. Through the designed backrest adjustment mechanism, medical staff or caregivers can control the backrest cushion to rise and fall with simple manual operation. It can be adjusted to a suitable lifting angle according to the patient's needs to adjust the patient's lying height, which is conducive to achieving the best comfortable lying position, reducing the pressure of back lordosis, improving patient comfort, increasing lung ventilation, improving sleep quality, increasing tolerance to cephalopelvic traction, and promoting better surgical efficacy and recovery.

[0018] Third, the backrest cushion is designed with a hollow section, and the adjustable anti-pressure pad uses breathable material / porous breathable structure to keep the patient's back in contact with the cushion. This allows for good breathability and air circulation under the back, which helps to sweat and dissipate heat, keep the skin dry, improve the patient's comfort when lying down, and further prevent pressure sores. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the adjustable head and pelvic ring postoperative pressure-free pad of this utility model.

[0020] Figure 2 This is a side view of this embodiment.

[0021] Figure 3 This is a schematic diagram of the backrest cushion in this embodiment.

[0022] Figure 4 This is a schematic diagram of the backrest adjustment mechanism in this embodiment (backrest cushion in the raised state).

[0023] Figure 5 This is a schematic diagram of the backrest adjustment mechanism in this embodiment (backrest cushion in the lowered state).

[0024] Reference numerals: 1. Base plate; 10. Flip-over seat; 11. Storage groove; 2. Lower body pad; 3. Backrest pad; 30. Support back pad; 300. Channel; 31. First recess; 32. Second recess; 33. Third recess; 34. Hollowed-out part; 35. Adjustable anti-pressure pad; 350. Annular pad; 351. Outer movable pad; 4. Mechanical linkage; 40. Lead screw; 41. Top rod; 42. Slider; 5. Manual control component; 50. Drive rod; 51. Hand crank; 6. Bevel gear. Detailed Implementation

[0025] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0026] like Figures 1 to 5 The adjustable cephalopelvic ring postoperative pressure-free pad shown is used for patients wearing the cephalopelvic ring traction device to lie down. Currently, the cephalopelvic ring traction device used in cephalopelvic ring traction surgery includes a head ring, a pelvic ring, and a corrective rod. The head ring is installed in the skull, the pelvic ring is installed in the iliac bone of the pelvis, and the corrective rod connects the head ring and the pelvic ring and is located on both sides of the patient's body.

[0027] The adjustable head-pelvic ring postoperative pressure-free cushion of this solution includes a base plate 1, a lower body cushion 2, a backrest cushion 3, and a backrest adjustment mechanism. The surfaces of the lower body cushion 2 and the backrest cushion 3 are covered with flexible padding layers. The lower body cushion 2 and the base plate 1 are respectively positioned corresponding to the front and rear halves of the base plate 1, and are fixedly connected. A flip-up seat 10 is provided in the middle of the base plate 1, and the front part of the backrest cushion 3 is flip-connected to the flip-up seat 10. The backrest cushion 3 has a first recess 31 for head ring insertion, a second recess 32 for pelvic ring insertion, a third recess 33 for orthopedic rod insertion, and a backrest protrusion pressure-free structure. The first recess 31 is located on the rear side of the backrest cushion 3 corresponding to the head area. The outline of the first recess 31 is adapted to the shape of the head ring, which can be freely inserted and removed. The second recess 32 is located on the front side of the backrest cushion 3 corresponding to the lumbar and pelvic area. The outline of the second recess 32 is adapted to the shape of the pelvic ring, which can be freely inserted and removed. It includes two third recesses 33, which are located on the left and right sides of the backrest cushion 3, respectively. The two ends of the third recess 33 are connected to the first recess 31 and the second recess 32, respectively. The outline of the third recess 33 is adapted to the shape of the correction rod, which can be freely inserted and removed.

[0028] The area enclosed by the first recess 31, the second recess 32, and the third recess 33 forms a support back pad 30 that contacts the back. The back protrusion pressure-free structure includes a hollow portion 34 and an adjustable anti-pressure pad 35. The hollow portion 34 is located in the support back pad 30. The adjustable anti-pressure pad 35 is designed for the back protrusion and includes an annular pad 350 and an outer movable pad 351. A cavity is formed in the middle of the annular pad 350. The outer edge of the annular pad 350 is fixedly connected to the outer movable pad 351. The annular pad 350 is made of breathable sponge material, and the outer movable pad 351 is made of flexible breathable fabric. The outer movable pad 351 is movably connected to the support back pad 30, so that the annular pad 350 is always located in the hollow portion 34. The annular pad 350 can be adjusted in position as the outer movable pad 351 moves. Specifically, the outer movable pad 351 adopts a ring-shaped structure, and the bottom of the supporting back pad 30 has a corresponding channel 300 for the outer movable pad 351 to pass through. The outer movable pad 351 is fitted onto the supporting back pad 30, and the annular pad 350 is only connected to the upper side of the outer movable pad 351. The outer movable pad 351 can slide back and forth and rotate left and right relative to the supporting back pad 30, thereby allowing the annular pad 350 to be adjusted in position. For different protruding parts of the back, the annular pad 350 can be moved to the target position to support and suspend the protruding parts of the back. In addition, the lower body pad 2 and the supporting back pad 30 are also made of breathable material.

[0029] The backrest adjustment mechanism includes a mechanical linkage 4 and a manual control component 5. The mechanical linkage 4 connects the backrest cushion 3 and the base plate 1 to control the up-and-down rotation of the backrest cushion 3 relative to the base plate 1. The manual control component 5 connects the mechanical linkage 4 to control the transmission action of the mechanical linkage 4.

[0030] The mechanical linkage 4 includes a lead screw 40, a push rod 41, and a slider 42. A long, narrow receiving groove 11 is provided on the base plate 1, parallel to the length of the base plate 1. The lead screw 40 is located slightly below the bottom of the receiving groove 11, with its axis parallel to the length of the base plate 1. Both ends of the lead screw 40 are connected to the rotating shaft of the base plate 1. The slider 42 is threadedly engaged with the lead screw 40 and is slidably positioned within the receiving groove 11, sliding along the length of the receiving groove 11. One end of the push rod 41 is rotatably connected to the backrest cushion 3, and the other end is rotatably connected to the slider 42. The receiving groove 11 has a reserved space above the lead screw 40 for the push rod 41 to be inserted. The manual control component 5 includes a drive rod 50 and a hand crank 51. The drive rod 50 is connected to the pivot of the base plate 1. The inner end of the drive rod 50 engages with the lead screw 40 via a bevel gear 6. The outer end of the drive rod 50 extends to the outer side of the base plate 1 and connects to the hand crank 51. The backrest cushion 3 supports the patient's back. Cranking the hand crank 51 rotates the lead screw 40, which in turn moves the slider 42 forward or backward. When the slider 42 moves forward, it causes the top rod 41 to gradually fall, which in turn causes the backrest cushion 3 to flip downward until it lands on the base plate 1. At this time, the patient tends to lie flat. When the lead screw 40 falls to the bottom, it is embedded in the reserved space of the receiving groove 11. When the slider 42 moves backward, it causes the top rod 41 to gradually rise, which in turn causes the backrest cushion 3 to flip upward to a certain angle. At this time, the patient tends to be in a state where their back is raised to a certain angle.

[0031] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An adjustable cephalopelvic ring postoperative pressure-free cushion for patients wearing a cephalopelvic ring traction device to lie down, the cephalopelvic ring traction device comprising a head ring, a pelvic ring, and a corrective rod, characterized in that: The backrest includes a base plate (1), a lower body cushion (2), a backrest cushion (3), and a backrest adjustment mechanism. The surfaces of the lower body cushion (2) and the backrest cushion (3) are covered with flexible padding layers. The lower body cushion (2) and the base plate (1) are respectively positioned to correspond to the front and rear halves of the base plate (1). The lower body cushion (2) is fixedly connected to the base plate (1). A flip seat (10) is provided in the middle of the base plate (1). The front side of the backrest cushion (3) is flipped and connected to the flip seat (10). An adaptive headband is provided on the backrest cushion (3). The backrest adjustment mechanism includes a first recess (31) for embedding, a second recess (32) for embedding the pelvic ring, a third recess (33) for embedding the corrective rod, and a backrest protrusion pressure-free structure; the backrest adjustment mechanism includes a mechanical linkage (4) and a manual control (5). The mechanical linkage (4) connects the backrest cushion (3) and the base plate (1) to control the up-and-down rotation of the backrest cushion (3) relative to the base plate (1). The manual control (5) connects the mechanical linkage (4) to control the transmission action of the mechanical linkage (4).

2. The adjustable cephalopelvic ring postoperative pressure-free pad according to claim 1, characterized in that: The mechanical linkage (4) includes a lead screw (40), a push rod (41), and a slider (42). The lead screw (40) is rotatably mounted on the base plate (1). The slider (42) is threadedly engaged with the lead screw (40) and slidably connected to the base plate (1). One end of the push rod (41) is rotatably connected to the backrest cushion (3), and the other end of the push rod (41) is rotatably connected to the slider (42). The manual control component (5) includes a drive rod (50) and a hand crank (51). The drive rod (50) is rotatably connected to the base plate (1). The inner end of the drive rod (50) is engaged with the lead screw (40) through a bevel gear (6). The outer end of the drive rod (50) extends to the outer side of the base plate (1) and is connected to the hand crank (51).

3. The adjustable cephalopelvic ring postoperative pressure-free pad according to claim 2, characterized in that: The base plate (1) is provided with a long strip-shaped receiving groove (11). The lead screw (40) is set at the bottom of the receiving groove (11). The slider (42) is slidably set in the receiving groove (11). The receiving groove (11) has a reserved space above the lead screw (40) for the top rod (41) to be embedded. When the lead screw (40) falls to the bottom, the lead screw (40) is embedded in the reserved space of the receiving groove (11).

4. The adjustable cephalopelvic ring postoperative pressure-free pad according to claim 1, characterized in that: The first recess (31) is located on the rear side of the backrest cushion (3) corresponding to the head area, and the second recess (32) is located on the front side of the backrest cushion (3) corresponding to the waist and pelvic area. It includes two third recesses (33), which are located on the left and right sides of the backrest cushion (3) respectively. The two ends of the third recesses (33) are connected to the first recess (31) and the second recess (32) respectively. The area enclosed by the first recess (31), the second recess (32) and the third recess (33) forms a support backrest cushion (30) that contacts the back.

5. The adjustable cephalopelvic ring postoperative pressure-free pad according to claim 4, characterized in that: The back protrusion pressure-free structure includes a hollow part (34), which is located in the support back pad (30).

6. The adjustable cephalopelvic ring postoperative pressure-free pad according to claim 5, characterized in that: The back protrusion pressure-free structure also includes an adjustable anti-pressure pad (35) for the back protrusion. The adjustable anti-pressure pad (35) includes an annular pad (350) and an outer movable pad (351). A cavity is formed in the middle of the annular pad (350). The outer edge of the annular pad (350) is fixedly connected to the outer movable pad (351). The outer movable pad (351) is made of flexible material. The outer movable pad (351) is movably connected to the supporting back pad (30). The annular pad (350) is located in the hollow part (34). The position of the annular pad (350) is adjusted as the outer movable pad (351) moves.

7. The adjustable cephalopelvic ring postoperative pressure-free pad according to claim 6, characterized in that: The outer movable pad (351) adopts a ring-shaped structure. The bottom of the support back pad (30) is provided with a channel (300) for the outer movable pad (351) to pass through. The outer movable pad (351) is sleeved on the support back pad (30). The ring pad (350) is only connected to the upper side of the outer movable pad (351). The outer movable pad (351) can slide back and forth and rotate left and right relative to the support back pad (30).

8. The adjustable cephalopelvic ring postoperative pressure-free pad according to claim 7, characterized in that: One or two or all of the lower body pad (2), support back pad (30), and adjustable anti-pressure pad (35) are made of breathable material or have a porous breathable structure.