A thoracolumbosacral orthosis for osteoporotic compression fractures

Abstract

This invention belongs to the field of chest-back braces technology, specifically disclosing a chest-back brace for osteoporotic compression fractures, including a back support, a chest support, shoulder straps, and a lateral fixation and tightening device. It creatively integrates an electrorheological fluid adaptive fit mechanism with a mechanical induction transmission mechanism, achieving personalized rigid support and dynamic intelligent tightening of the brace. The electrorheological fluid uses a solid-liquid phase change to lock onto the wearer's optimal back curve, ensuring a comfortable fit. Simultaneously, it utilizes a micro-motion spring to sense the range of motion, automatically triggering the tightening mechanism to enhance restraint only when a large range of flexion is detected, achieving a graded response of static adaptation and dynamic protection. Combined with a reliable ratchet lock and a convenient quick-release design, it significantly improves the wearing safety, comfort, and ease of use for patients with osteoporotic fractures.

Description

Technical Field

[0001] This invention belongs to the field of chest and back braces technology, specifically referring to a chest and back brace for osteoporotic compression fractures. Background Technology

[0002] Patients with osteoporosis, especially the elderly, experience increased bone fragility, making them susceptible to vertebral compression fractures from minor external forces or even everyday activities such as coughing or bending over. These fractures often cause severe pain, kyphosis, and limited mobility, significantly impacting patients' quality of life and rehabilitation. In clinical treatment, in addition to medication and surgery, wearing a thoracic-back brace for external immobilization and support is an important conservative treatment and postoperative adjunct therapy, aiming to limit spinal movement, reduce vertebral load, alleviate pain, and prevent further deformity.

[0003] However, existing chest-back braces generally have the following limitations: First, most braces are prefabricated or have limited adjustment ranges, making it difficult to precisely fit each patient's unique spinal curvature and body shape. This can easily lead to excessive local pressure or support cavities, resulting in discomfort, skin pressure sores, or poor fixation. Second, the tightness of traditional braces is relatively fixed once set, failing to respond to changes in the patient's posture during use. When patients perform unavoidable slight movements, the brace may loosen, weakening its protective effect; and unconscious, large-amplitude flexion movements cannot be detected in time to apply additional tightness to prevent further injury. Finally, the process of putting on and taking off braces is often cumbersome, especially for elderly patients with limited mobility.

[0004] Therefore, there is an urgent need for a new type of chest-back brace that can intelligently adapt to individual body shape, dynamically respond to activity status, and provide reliable protection and convenient donning and doffing experience, so as to better meet the clinical rehabilitation needs of patients with osteoporotic compression fractures. Summary of the Invention

[0005] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a chest-back brace for osteoporotic compression fractures. It creatively integrates an electrorheological fluid adaptive fitting mechanism with a mechanical induction transmission mechanism, achieving personalized rigid support and dynamic intelligent tightening. The brace uses the solid-liquid phase change of the electrorheological fluid to lock onto the wearer's optimal back curve, ensuring a comfortable fit. Simultaneously, by utilizing a micro-motion spring to sense the range of motion, the tightening mechanism is automatically triggered only when a large range of flexion is detected, enhancing restraint and achieving a graded response of static adaptation and dynamic protection. Combined with a reliable ratchet lock and a convenient quick-release design, this significantly improves the wearing safety, comfort, and ease of use for patients with osteoporotic fractures.

[0006] The technical solution adopted by the present invention is as follows: The present invention provides a chest-back brace for osteoporotic compression fractures, including a back support, a chest support, a shoulder strap, and a lateral fixation and tightening device. The back support and the chest support are connected at their upper parts by the shoulder strap. The lateral fixation and tightening device is disposed on the side wall of the back support and the chest support. The lateral fixation and tightening device includes a fixed tightening plate, a wrapping rotation tightening locking member, and a self-enlarging tightening anti-over-limit member. The wrapping rotation tightening locking member is disposed on the fixed tightening plate, and the self-enlarging tightening anti-over-limit member is disposed on the wrapping rotation tightening locking member and the back support.

[0007] Furthermore, the package rotation tightening locking component includes a package tightening strap and a rotation tightening locking component. The rotation tightening locking component is disposed on a fixed tightening plate. One end of the package tightening strap is disposed on the chest support and the back support respectively, and the other end of the package tightening strap is connected to the rotation tightening locking component.

[0008] Preferably, the wrapping and tightening band includes an outer wrapping and tightening wide band and an inner telescopic tightening cord. The outer wrapping and tightening wide band is respectively disposed on the chest support and the back support. One end of the inner telescopic tightening cord passes through the outer wrapping and tightening wide band and is respectively disposed on the chest support and the back support. The inner telescopic tightening cord is movably disposed within the outer wrapping and tightening wide band, and the other end of the inner telescopic tightening cord is wrapped around the rotating tightening and locking member.

[0009] Furthermore, the rotary tightening locking component includes a rotary column, a ratchet, a knob, and an elastic locking component. The rotary column is rotatably mounted on the fixed tightening plate, the ratchet is sleeved and fixedly mounted on the rotary column, and a gap is left between the ratchet and the fixed tightening plate. The inner telescopic tightening rope is wound around the rotary column at the gap, the knob is mounted on the rotary column, and the elastic locking component is mounted on the fixed tightening plate, with the elastic locking component in contact with the ratchet.

[0010] The elastic locking component includes a fixed frame, a locking rod, a limiting telescopic post, and a return spring. The fixed frame is mounted on a fixed tightening plate, the limiting telescopic post is telescopically mounted on the fixed frame, the locking rod is slidably mounted in the fixed frame, and the locking rod is connected to the limiting telescopic post. The return spring is sleeved on the outside of the limiting telescopic post and is located between the limiting telescopic post and the locking rod. The locking rod can engage with the ratchet teeth of a ratchet to lock the ratchet.

[0011] Furthermore, the self-enlarging tightening anti-over-limit component includes a follower gear, a tightening rack, a linkage rod, and a limiting guide rod. The follower gear is sleeved on a rotating column, which has a notch. The follower gear has a sleeve hole, and a locking block is provided at the sleeve hole. The locking block is engaged and slidably disposed in the notch. The limiting guide rod is disposed on a fixed tightening plate. One end of the linkage rod is disposed on a back support. The tightening rack is connected to the other end of the linkage rod and is engaged and slidably disposed on the limiting guide rod. The tightening rack is meshed with the follower gear, and the follower gear has a rotating plate.

[0012] Furthermore, the side wall of the tightening rack is provided with a locking groove, and the limiting guide rod is provided with a limiting locking block. The locking groove cooperates with the limiting locking block, and the tightening rack slides along the limiting locking block through the locking groove.

[0013] The back support includes a rear support frame, an inner fitting adaptive support, and a control component. The rear support frame is provided with a micro-motion spring. The inner fitting adaptive support is engaged and slidably disposed in the rear support frame and is connected to the micro-motion spring. The control component is disposed on a fixed tightening plate and passes through the rear support frame and is electrically connected to the inner fitting adaptive support.

[0014] Furthermore, the side of the embedded adaptive fitting support that adheres to the human body is a flexible deformation layer, the embedded adaptive fitting support is hollow, the embedded adaptive fitting support is filled with electrorheological fluid, and the control component controls the state of the electrorheological fluid.

[0015] Furthermore, a movable frame is provided on the side wall of the rear support frame, and one end of the linkage rod passes through the movable frame and is connected to the embedded adaptive fitting support. The linkage rod can move along the movable frame.

[0016] The beneficial effects achieved by the present invention using the above structure are as follows: 1. Personalized adaptive fit enhances comfort and protection precision: By setting an embedded adaptive fit support component and its internal electrorheological fluid and flexible deformation layer, the electrorheological fluid is in a liquid state when initially tightened, allowing the support component to deform flexibly and completely conform to the individual curve of the wearer's back, achieving a personalized fit without gaps or pressure concentration points. After fitting, the electrorheological fluid is solidified by applying electricity, locking this optimal fit shape, thus providing tailor-made uniform support for patients of different body types, greatly improving wearing comfort and the effectiveness of biomechanical protection; 2. Dynamic Sensing and Intelligent Tightening for Graded Protection: The brace innovatively integrates a mechanical sensing-transmission mechanism consisting of micro-motion springs, linkage rods, tightening racks, and follower gears. This mechanism can sensitively distinguish the wearer's range of motion. For minor daily activities, the mechanism does not trigger, avoiding unnecessary frequent tightening and ensuring basic comfort. When high-risk movements such as large-amplitude bending are detected, the mechanism can automatically trigger and drive the rotating column to further tighten the tightening rope, instantly increasing the tightening force and actively limiting excessive spinal movement. This effectively prevents secondary injuries or increased pain caused by accidental movements, achieving intelligent graded response of static comfort support and dynamic enhanced protection. 3. Adjustable state and reliable locking, balancing functionality and safety: Utilizing the rapid and reversible changes in the rheological properties of electrorheological fluid under an applied electric field, the support component can be controllably switched between a flexible adaptive state and a rigid support state. The technology is ingenious and the response is rapid. At the same time, the ratchet mechanism and the elastic locking component work together to ensure that the state after automatic tightening can be reliably locked, preventing the tightening force from loosening unexpectedly and ensuring the stability of the support effect. 4. Easy to operate and easy to put on and take off: The initial tightening is achieved by the designed knob, and the engagement and disengagement of the follower gear can be achieved by simply pushing and pulling the rotating plate. The operation is intuitive. When removing the garment, simply pull the limit telescopic column to release the ratchet lock and quickly release the tightening force, making the putting on and taking off process easier and more independent for patients, lowering the threshold for use, and making it especially suitable for elderly patients with limited mobility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a chest-back brace for osteoporotic compression fractures proposed in this invention. Figure 2 This is a left view of a chest-back brace for osteoporotic compression fractures proposed in this invention; Figure 3 This is a front view of a chest-back brace for osteoporotic compression fractures proposed in this invention; Figure 4 This is a top view of a chest-back brace for osteoporotic compression fractures proposed in this invention; Figure 5 for Figure 4 A magnified view of part A in the middle; Figure 6 This is a bottom view of a chest-back brace for osteoporotic compression fractures proposed in this invention; Figure 7 This is a schematic diagram of the lateral fixing and tightening device. Figure 8 This is a structural diagram of the back support component; Figure 9 This is a schematic diagram of the limiting guide rod. Figure 10 This is a schematic diagram of the rear support frame.

[0018] The components include: 1. Back support; 2. Chest support; 3. Shoulder straps; 4. Lateral fixing and tightening device; 5. Fixing and tightening plate; 6. Wrapping rotating tightening and locking device; 7. Self-enlarging tightening and over-limit prevention device; 8. Wrapping tightening strap; 9. Rotating tightening and locking device; 10. Outer wrapping tightening wide strap; 11. Inner telescopic tightening rope; 12. Rotating column; 13. Ratchet; 14. Knob; 15. Elastic locking device; 16. Fixing frame. 7. Locking rod; 18. Limiting telescopic column; 19. Return spring; 20. Follower gear; 21. Tightening rack; 22. Linkage rod; 23. Limiting guide rod; 24. Notch; 25. Sleeve hole; 26. Engaging block; 27. Rotating plate; 28. Engaging slide groove; 29. ​​Limiting engaging block; 30. Rear support frame; 31. Embedded adaptive fitting support component; 32. Control component; 33. Micro-motion spring; 34. Moving frame.

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] like Figures 1-10 As shown, the present invention provides a chest-back brace for osteoporotic compression fractures, including a back support 1, a chest support 2, a shoulder strap 3, and a lateral fixation and tightening device 4. The back support 1 and the chest support 2 are connected at the top by the shoulder strap 3, and the lateral fixation and tightening device 4 is disposed on the side wall of the back support 1 and the chest support 2.

[0023] The back support 1 includes a rear support frame 30, an inner-embedded adaptive fitting support 31, and a control component 32. The rear support frame 30 is provided with a micro-motion spring 33. The inner-embedded adaptive fitting support 31 is engaged and slidably disposed in the rear support frame 30. The inner-embedded adaptive fitting support 31 is connected to the micro-motion spring 33. The control component 32 is disposed on the fixed tightening plate 5. The control component 32 passes through the rear support frame 30 and is electrically connected to the inner-embedded adaptive fitting support 31. The side of the inner-embedded adaptive fitting support 31 that is in contact with the human body is a flexible deformation layer. The inner-embedded adaptive fitting support 31 is hollow and filled with electrorheological fluid. The control component 32 controls the state of the electrorheological fluid.

[0024] The lateral fixing and tightening device 4 includes a fixing and tightening plate 5, a wrapping rotation tightening and locking component 6, and a self-enlarging tightening and anti-over-limit component 7. The wrapping rotation tightening and locking component 6 is disposed on the fixing and tightening plate 5, and the self-enlarging tightening and anti-over-limit component 7 is disposed on the wrapping rotation tightening and locking component 6 and the back support component 1. The wrapping rotation tightening and locking component 6 includes a wrapping tightening strap 8 and a rotation tightening and locking component 9. The rotation tightening and locking component 9 is disposed on the fixing and tightening plate 5, and one end of the wrapping tightening strap 8 is respectively disposed on the chest support component 2 and the back support component 1. The other end of the wrapping and tightening band 8 is connected to the rotating tightening and locking member 9; the wrapping and tightening band 8 includes an outer wrapping and tightening wide band 10 and an inner telescopic tightening rope 11. The outer wrapping and tightening wide band 10 is respectively disposed on the chest support member 2 and the back support member 1. One end of the inner telescopic tightening rope 11 passes through the outer wrapping and tightening wide band 10 and is respectively disposed on the chest support member 2 and the back support member 1. The inner telescopic tightening rope 11 is movably disposed within the outer wrapping and tightening wide band 10. The other end of the inner telescopic tightening rope 11 is wrapped around the rotating tightening and locking member 9. The rotating tightening locking member 9 includes a rotating column 12, a ratchet 13, a knob 14, and an elastic locking member 15. The rotating column 12 is rotatably mounted on the fixed tightening plate 5. The ratchet 13 is sleeved and fixedly mounted on the rotating column 12, with a gap between the ratchet 13 and the fixed tightening plate 5. The inner telescopic tightening rope 11 is wound around the rotating column 12 at the gap. The knob 14 is mounted on the rotating column 12. The elastic locking member 15 is mounted on the fixed tightening plate 5 and contacts the ratchet 13. 5 includes a fixed frame 16, a locking rod 17, a limiting telescopic column 18, and a return spring 19. The fixed frame 16 is disposed on the fixed tightening plate 5. The limiting telescopic column 18 is telescopically disposed on the fixed frame 16. The locking rod 17 is slidably disposed in the fixed frame 16 and is connected to the limiting telescopic column 18. The return spring 19 is sleeved on the outside of the limiting telescopic column 18 and is disposed between the limiting telescopic column 18 and the locking rod 17. The locking rod 17 can be engaged in the ratchet teeth of the ratchet 13 to lock the ratchet 13.The self-enlarging tightening anti-over-limit component 7 includes a follower gear 20, a tightening rack 21, a linkage rod 22, and a limiting guide rod 23. The follower gear 20 is sleeved on the rotating column 12, which has a notch 24. The follower gear 20 has a sleeve hole 25, and a locking block 26 is provided at the sleeve hole 25. The locking block 26 is engaged and slidably disposed in the notch 24. The limiting guide rod 23 is disposed on the fixed tightening plate 5. A movable frame 34 is provided on the side wall of the rear support frame 30. One end of the linkage rod 22 passes through the movable frame 34 and engages with the internally fitted adaptive support. The support member 31 is connected, the linkage rod 22 can move along the movable frame 34, the clamping rack 21 is connected to the other end of the linkage rod 22, the clamping rack 21 is engaged and slidably mounted on the limiting guide rod 23, the clamping rack 21 is meshed with the follower gear 20, the follower gear 20 is provided with a rotating plate 27; the side wall of the clamping rack 21 is provided with an engagement groove 28, the limiting guide rod 23 is provided with a limiting engagement block 29, the engagement groove 28 cooperates with the limiting engagement block 29, and the clamping rack 21 slides along the limiting engagement block 29 through the engagement groove 28.

[0025] In practical use, the brace is worn on the body. By pulling the rotating plate 27, the follower gear 20 is pulled out, disengaging it from the tightening rack 21. Turning the knob 14 causes the rotating column 12 to rotate, which in turn causes the inner telescopic tightening rope 11 to rotate and wrap around the rotating column 12, thereby tightening the chest support 2 and back support 1 to fit snugly against the body. At this time, the electrorheological fluid in the embedded adaptive support 31 becomes liquid, and the flexible deformation layer can adjust according to the wearer's back curve. After adaptive fitting, the electrorheological fluid is energized via the control component 32, causing it to change from a liquid to a solid state, perfectly adapting to people with different back curves. The follower gear 20 is pushed back, engaging with the clamping rack 21. The rotating plate 27 is then rotated between the knob 14 and the follower gear 20 to prevent it from moving along the rotating column 12. When the wearer moves slightly, it will compress the embedded adaptive fitting support 31. When the wearer is under pressure, the micro-spring 33 slightly contracts, which is insufficient to rotate the rotating column 12 and does not increase the tightening. When the wearer bends over more, the micro-spring 33 contracts more, causing the linkage rod 22 to move along the moving frame 34. The movement of the linkage rod 22 causes the tightening rack 21 to move, which in turn causes the follower gear 20 to rotate. The rotation of the follower gear 20 causes the rotating column 12 to rotate, further tightening the inner telescopic tightening rope 11 around the rotating column 12. The rotation of the rotating column 12 simultaneously causes the ratchet rack to rotate. The wheel 13 rotates and locks under the action of the elastic locking member 15 to prevent the inner telescopic tightening rope 11 from rebounding, thereby increasing the tightening force and effectively preventing the wearer from making large bending movements, thus enhancing the support and protection effect. When taking it off, lift the limiting telescopic column 18 upward, the return spring 19 retracts, the limiting telescopic column 18 moves upward and pulls the locking rod 17 upward, so that the locking rod 17 disengages from the ratchet 13, and the inner telescopic tightening rope 11 can be loosened, making it easy to put on and take off. The above is the specific working process of the present invention. Repeat this step when using it next time.

[0026] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the foregoing and its equivalents.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A chest-back brace for osteoporotic compression fractures, characterized in that: It includes a back support (1), a chest support (2), a shoulder strap (3), and a lateral fixing and tightening device (4). The back support (1) and the chest support (2) are connected above each other by the shoulder strap (3). The lateral fixing and tightening device (4) is located on the side wall of the back support (1) and the chest support (2). The lateral fixing and tightening device (4) includes a fixing and tightening plate (5), a wrapping rotation tightening and locking device (6), and a self-enlarging tightening and over-limit prevention device (7). The wrapping rotation tightening and locking device (6) is located on the fixing and tightening plate (5), and the self-enlarging tightening and over-limit prevention device (7) is located on the wrapping rotation tightening and locking device (6) and the back support (1).

2. The thoracic-back brace for osteoporotic compression fractures according to claim 1, characterized in that: The package rotation tightening locking member (6) includes a package tightening band (8) and a rotation tightening locking member (9). The rotation tightening locking member (9) is located on the fixed tightening plate (5). One end of the package tightening band (8) is located on the chest support member (2) and the back support member (1), respectively. The other end of the package tightening band (8) is connected to the rotation tightening locking member (9).

3. A chest-back brace for osteoporotic compression fractures according to claim 2, characterized in that: The wrapping and tightening band (8) includes an outer wrapping and tightening wide band (10) and an inner telescopic tightening rope (11). The outer wrapping and tightening wide band (10) is respectively disposed on the chest support (2) and the back support (1). One end of the inner telescopic tightening rope (11) passes through the outer wrapping and tightening wide band (10) and is respectively disposed on the chest support (2) and the back support (1). The inner telescopic tightening rope (11) is movably disposed inside the outer wrapping and tightening wide band (10). The other end of the inner telescopic tightening rope (11) is wrapped around the rotating tightening locking member (9).

4. A chest-back brace for osteoporotic compression fractures according to claim 3, characterized in that: The rotating tightening locking component (9) includes a rotating column (12), a ratchet (13), a knob (14), and an elastic locking component (15). The rotating column (12) is rotatably mounted on the fixed tightening plate (5). The ratchet (13) is sleeved and fixedly mounted on the rotating column (12). There is a gap between the ratchet (13) and the fixed tightening plate (5). The inner telescopic tightening rope (11) is wound around the rotating column (12) at the gap. The knob (14) is mounted on the rotating column (12). The elastic locking component (15) is mounted on the fixed tightening plate (5). The elastic locking component (15) is in contact with the ratchet (13).

5. A chest-back brace for osteoporotic compression fractures according to claim 4, characterized in that: The elastic locking component (15) includes a fixed frame (16), a locking rod (17), a limiting telescopic column (18), and a return spring (19). The fixed frame (16) is mounted on the fixed tightening plate (5). The limiting telescopic column (18) is telescopically mounted on the fixed frame (16). The locking rod (17) is slidably mounted in the fixed frame (16). The locking rod (17) is connected to the limiting telescopic column (18). The return spring (19) is sleeved on the outside of the limiting telescopic column (18). The return spring (19) is located between the limiting telescopic column (18) and the locking rod (17).

6. A chest-back brace for osteoporotic compression fractures according to claim 5, characterized in that: The self-enlarging tightening anti-over-limit component (7) includes a follower gear (20), a tightening rack (21), a linkage rod (22), and a limiting guide rod (23). The follower gear (20) is sleeved on the rotating column (12). The rotating column (12) has a notch (24). The follower gear (20) has a sleeve hole (25). A locking block (26) is provided at the sleeve hole (25). The locking block (26) is engaged and slidably disposed on the notch. In the opening (24), the limiting guide rod (23) is set on the fixed tightening plate (5), one end of the linkage rod (22) is set on the back support (1), the tightening rack (21) is connected to the other end of the linkage rod (22), the tightening rack (21) is engaged and slidably set on the limiting guide rod (23), the tightening rack (21) is meshed with the follower gear (20), and the follower gear (20) is provided with a rotating plate (27).

7. A chest-back brace for osteoporotic compression fractures according to claim 6, characterized in that: The side wall of the tightening rack (21) is provided with a locking groove (28), and the limiting guide rod (23) is provided with a limiting locking block (29). The locking groove (28) cooperates with the limiting locking block (29), and the tightening rack (21) slides along the limiting locking block (29) through the locking groove (28).

8. A chest-back brace for osteoporotic compression fractures according to claim 7, characterized in that: The back support (1) includes a rear support frame (30), an inner fitting adaptive fitting support (31), and a control component (32). The rear support frame (30) is provided with a micro-motion spring (33). The inner fitting adaptive fitting support (31) is engaged and slidably disposed in the rear support frame (30). The inner fitting adaptive fitting support (31) is connected to the micro-motion spring (33). The control component (32) is disposed on the fixed tightening plate (5). The control component (32) passes through the rear support frame (30) and is electrically connected to the inner fitting adaptive fitting support (31).

9. A chest-back brace for osteoporotic compression fractures according to claim 8, characterized in that: The side of the embedded adaptive fitting support (31) that fits the human body is a flexible deformation layer. The embedded adaptive fitting support (31) is hollow. The embedded adaptive fitting support (31) is filled with electrorheological fluid. The control component (32) controls the state of the electrorheological fluid.

10. A chest-back brace for osteoporotic compression fractures according to claim 9, characterized in that: The rear support frame (30) has a movable frame (34) on its side wall, and one end of the linkage rod (22) passes through the movable frame (34) and is connected to the embedded adaptive fitting support (31).

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