Funnel chest postoperative orthosis

Abstract

The invention belongs to the technical field of chest orthosis, and particularly provides a funnel chest postoperative orthosis which comprises a back plate, turning-over prevention expansion mechanisms are symmetrically arranged on the two sides of the back plate, transition connecting plates are arranged on the upper portions of the turning-over prevention expansion mechanisms, shoulder supports are arranged on the upper portions of the transition connecting plates, and torsion limiting assemblies are arranged on the lower portion of the back plate. An elastic bent plate is arranged on the front side of the back plate, a twisting type adjusting mechanism is rotationally embedded in the rear side of the back plate, and the twisting type adjusting mechanism and the upper end of the elastic bent plate are connected with a steel wire rope. The funnel chest postoperative orthosis can be adjusted according to the body type of a patient and keep the back of the patient straight, meanwhile, subconscious turning-over actions of the patient can be prevented when the patient lies down to have a rest, and secondary injury caused by the fact that the patient presses a wound is avoided; the waist and the crotch of the patient are limited through the binding mechanism and the fixing and limiting mechanism, and the patient is prevented from doing actions such as bowing and hip twisting.

Description

Technical Field

[0001] The present invention belongs to the technical field of chest orthopedics, and specifically refers to an orthosis after funnel chest surgery. Background Art

[0002] Funnel chest is a congenital deformity of the sternum depression, mainly manifested as the anterior chest wall indenting inward in a funnel shape. It occurs more frequently in males and may be accompanied by symptoms of cardiopulmonary compression and psychological effects. The main treatment method is surgical correction. After funnel chest surgery, attention should be paid to postoperative care, activity patterns, lifestyle, etc. to ensure the correction effect. Among them, the main activity pattern of patients after surgery is: when moving within 1 week after surgery, the thoracic vertebra cannot be flexed or twisted, avoid bending over and twisting the hips, try to keep the back straight when moving, avoid carrying heavy objects within 2 months, avoid strenuous exercise within 3 months, and then perform gentle exercises 3 months later, avoiding strong confrontation exercises such as playing basketball and football. Existing orthoses after funnel chest surgery do not have the ability to keep the patient's back straight, cannot prevent the patient from bending over, twisting the hips and other actions, and at the same time, it is difficult to prevent the patient's subconscious turning over action when the patient lies down. Summary of the Invention

[0003] To solve the above-mentioned existing problems, the present invention provides an orthosis after funnel chest surgery that can be adjusted according to the patient's body shape and keep the patient's back straight. At the same time, it can prevent the patient's subconscious turning over action when the patient lies down to rest, avoiding secondary injury caused by the patient pressing on the wound. In addition, the waist and hips of the patient are restricted by a binding mechanism and a fixing and restricting mechanism to prevent the patient from bending over, twisting the hips and other actions.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows: An orthosis after funnel chest surgery provided by the present invention includes a back plate. Anti-turning and expanding mechanisms are symmetrically arranged on both sides of the back plate. A transition connecting plate is arranged on the upper part of the anti-turning and expanding mechanism. Shoulder supports are arranged on the upper part of the transition connecting plate. A front chest belt is connected between the symmetric shoulder supports. A front chest protection plate is arranged in the middle of the front chest belt. A torsion limiting component is arranged on the lower part of the back plate. The front chest protection plate is connected to the torsion limiting component; an elastic bending plate is arranged on the front side of the back plate. The lower end of the elastic bending plate is fixedly connected to the back plate, and the upper end of the elastic bending plate is slidably connected to the back plate. A twisting type adjusting mechanism is rotatably embedded on the rear side of the back plate. A steel wire rope is connected between the twisting type adjusting mechanism and the upper end of the elastic bending plate. The elastic bending plate is made of an elastic metal plate; Further, the anti-rolling extension mechanism includes an extension plate, an extension board, a push plate, and a pressing plate. The extension plates are symmetrically arranged on both sides of the backboard. The extension plates are connected to the transition connecting plates. The extension boards are embedded and slidably arranged on the side of the extension plates away from the backboard. The push plate is rotatably arranged on the side of the extension board close to the backboard. The pressing plate is rotatably arranged on the side of the push plate away from the extension board. A plurality of reset springs are evenly connected between the pressing plate and the extension plate. In the initial state, the pressing plate is away from the extension plate under the elastic action of the reset spring. The push plate is in an inclined state to connect the pressing plate and the extension board. When the patient needs to lie down and rest, the pressing plate is pressed into the inner side of the extension plate, and the reset spring is compressed. The inclined push plate pushes the extension board out of the extension plate, increasing the coverage area of the extension plate. It is difficult for the patient to drive the backboard and the extension plate to roll over together, thus preventing the patient's subconscious rolling action. When the patient gets up, under the elastic action of the reset spring, the pressing plate is away from the extension plate again, and the extension board is pulled back into the extension plate for reset through the push plate.

[0005] Further, the torsion limiting assembly includes a binding mechanism, a fixed limiting mechanism, and a telescopic connecting rod. The binding mechanism and the fixed limiting mechanism are respectively connected to the lower part of the backboard. The binding mechanism is arranged above the fixed limiting mechanism. The telescopic connecting rods are symmetrically connected between the binding mechanism and the fixed limiting mechanism.

[0006] Further, an activity groove is provided in the center of the rear side of the backboard without penetrating. A winding groove is provided at the bottom of the activity groove. A transition rotating shaft is rotatably arranged in the winding groove. The winding groove does not penetrate the backboard. Limiting grooves are evenly distributed in the circumferential direction on the inner side wall of the activity groove. Limiting blocks are rotatably arranged in the limiting grooves.

[0007] Further, the twisting adjustment mechanism includes a pulling block, a twisting block, and a winding shaft. The winding shaft is rotatably arranged in the winding groove. The steel wire rope penetrates the upper wall of the backboard and is wound around the winding shaft. The steel wire rope is lapped with the transition rotating shaft. The twisting block is slidably arranged on the winding shaft. Cut-off blocks are symmetrically arranged on both sides of the twisting block. The pulling block is arranged on the side of the twisting block away from the winding shaft. The twisting block and the pulling block are movably arranged in the activity groove. A pull ring is embedded on the side of the pulling block away from the twisting block. The pull ring is rotatably arranged on the pulling block. The limiting block protrudes from the limiting groove. The limiting block is arranged on the side close to the limiting groove. A torsion spring is provided at the rotation connection of the limiting block and the backboard. When the winding shaft winds the steel wire rope, the cut-off block slides from one side of the limiting groove close to the limiting block to the other side of the limiting groove. During this period, the part of the cut-off block and the limiting block protruding from the limiting groove come into contact and push the limiting block into the limiting groove. When the cut-off block slides past the limiting groove, under the elastic action of the torsion spring, the limiting block resets; when the steel wire rope stops winding, under the tension of the steel wire rope, the winding shaft will drive the torsion block to rotate. At this time, the cut-off block abuts against the limiting block, and the limiting block abuts against the inner wall of the limiting groove, preventing the rotation of the torsion block, thereby positioning the torsion block and fixing the bending degree of the elastic bending plate to ensure that the patient's back is in a straight state; when the patient needs to relax the back, pull the pulling block outwards through the pull ring, and the torsion block and the winding shaft slide relatively, so that the torsion block slides outwards in the moving groove, and the cut-off block slides out of the range of the limiting groove, and the limiting block no longer abuts against the cut-off block. At this time, rotate the torsion block to release the steel wire rope from the winding shaft.

[0008] Further, the binding mechanism includes an abdominal strap and a buckle. The abdominal straps are symmetrically arranged on both sides of the back plate. The abdominal straps are arranged below the extension plate. The buckle is connected between the symmetric abdominal straps. Magic tapes are provided on the symmetric abdominal straps. One end of one abdominal strap passes through the buckle and is connected to the other abdominal strap through the magic tape; a tightening strap is embedded in the middle of the abdominal strap. The tightening strap is made of plastic material, and one end of the telescopic connecting rod is connected to the tightening strap; Further, the fixing and limiting mechanism includes hip straps and positioning blocks. The hip straps are symmetrically arranged at the lower part of the back plate. The hip straps are arranged below the abdominal straps. The positioning blocks are arranged in the middle of the hip straps. A silica gel pad is provided on the inner side of the positioning blocks. The telescopic connecting rod is connected between the positioning blocks and the abdominal straps. A buckle is connected between the symmetric hip straps; During use, pull the two sides of the abdominal straps to tighten. Pass one end of one abdominal strap through the buckle and paste it to the other abdominal strap through the magic tape. The tightening strap adaptively fits the two sides of the patient's waist. Driven by the telescopic connecting rod, the positioning block is located below the tightening strap. Then place the front chest protection plate in front of the patient and connect it to the buckle; then adjust the positioning block to the positions on both sides of the patient's hip bones, pull the hip straps, and connect the two sides of the hip straps through the buckle to fix the positioning block. The silica gel pad closely adheres to the patient, providing strong friction, making it difficult for relative displacement to occur between the patient and the positioning block. Through the telescopic connecting rod and the tightening strap, the abdominal strap is connected to the positioning block, and it is also difficult for relative displacement to occur between the abdominal strap tied to the patient's waist and the patient. Indirectly connect the patient's waist and hips, making it difficult for relative displacement or torsion to occur between these two parts of the patient, avoiding the patient's actions such as hip torsion from pulling the wound, and at the same time ensuring the recovery after orthopedic surgery.

[0009] Preferably, the anti-turnover extension mechanism further comprises a fitting plate, which is movably arranged on a side of the extension plate close to the front chest protection plate, and springs are evenly connected between the fitting plate and the extension plate, and the fitting plate is arc-shaped.

[0010] Furthermore, a yield groove is provided through the front chest protection plate, and a fixed connecting belt is connected to the lower end of the front chest protection plate. Velcro is provided on the fixed connecting belt, and the fixed connecting belt is connected between the front chest protection plate and the buckle through the Velcro; cotton pads are provided on the inner sides of the shoulder support and the front chest protection plate.

[0011] The beneficial effects achieved by the present invention using the above structure are as follows: 1. The present invention provides a postoperative orthosis for pectus excavatum, which utilizes the material properties of the elastic curved plate and combines the application of a winding structure composed of a winding shaft and a steel wire rope to facilitate the adjustment of the curvature of the elastic curved plate. The curved elastic curved plate can adaptively adjust the curvature to fit the patient's back, keep the patient's back straight, and facilitate recovery after orthopedic surgery. 2. When the patient needs to lie down to rest, by increasing the coverage area of the expansion board, it is difficult for the patient to turn over with the backboard and the expansion board, thereby preventing the patient from turning over subconsciously; 3. An interconnected binding mechanism and a fixed limiting mechanism are provided to prevent relative displacement between the patient and the positioning block. The abdominal bandage is connected to the positioning block through a telescopic connecting rod and a tightening strip, and relative displacement between the abdominal bandage tied to the patient's waist and the patient is also difficult. The patient's waist and hips are indirectly connected, making it difficult for these two parts of the patient to move or twist relative to each other, thus preventing the patient from twisting the hip and pulling the wound, and ensuring recovery after correction surgery. 4. Through the soft connection of the front chest strap, fixed connecting strap, abdominal strap and hip strap and the application of Velcro, the device can be worn according to the patient's body shape, avoiding the wounds on the patient's chest and sides, avoiding compression of the wounds, and facilitating wound care. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a postoperative orthosis of pectus excavatum provided by the present invention; Figure 2 A schematic diagram of the rear structure of a postoperative orthosis of pectus excavatum provided by the present invention without the anti-turnover expansion mechanism; Figure 3 A left view of a postoperative orthosis of pectus excavatum provided by the present invention; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 5 is a schematic diagram of the structure of the back panel; Figure 6 is Figure 4 a partial enlarged structural schematic diagram at position B in Figure 7 a structural schematic diagram of a twisting adjustment mechanism; Figure 8 a combined structural schematic diagram of a back plate, an elastic bent plate and a torsion limiting component; Figure 9 a structural schematic diagram of an anti-overturning expansion mechanism.

[0013] Among them, 1. back plate, 2. elastic bent plate, 3. anti-overturning expansion mechanism, 4. twisting adjustment mechanism, 5. transition connecting plate, 6. shoulder support, 7. front chest strap, 8. front chest protection plate, 9. torsion limiting component, 10. binding mechanism, 11. fixed limiting mechanism, 12. relief groove, 13. fixed connecting strap, 14. steel wire rope, 15. winding groove, 16. movable groove, 17. limiting groove, 18. limiting block, 19. winding shaft, 20. twisting block, 21. cut-off block, 22. transition rotating shaft, 23. pulling block, 24. abdominal strap, 25. buckle, 26. tightening strip, 27. hip strap, 28. positioning block, 29. telescopic connecting rod, 30. expansion plate, 31. fitting plate, 32. extension plate, 33. pushing plate, 34. pressing plate, 35. return spring. Specific embodiments

[0014] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments. Parts of the technical features or connection relationships of the present invention that are not described in detail are all prior arts adopted.

[0015] The following further describes the present invention in detail with reference to the accompanying drawings.

[0016] As Figures 1-9 shown, an orthosis for funnel chest correction after operation provided by the present invention includes a back plate 1. Anti-overturning expansion mechanisms 3 are symmetrically arranged on both sides of the back plate 1. A transition connecting plate 5 is arranged on the upper part of the anti-overturning expansion mechanism 3. Shoulder supports 6 are arranged on the upper part of the transition connecting plate 5. A front chest strap 7 is connected between the symmetric shoulder supports 6. A front chest protection plate 8 is arranged in the middle of the front chest strap 7. A relief groove 12 runs through the front chest protection plate 8. A torsion limiting component 9 is arranged at the lower part of the back plate 1. The front chest protection plate 8 is connected to the torsion limiting component 9.

[0017] An elastic bent plate 2 is arranged on the front side of the back plate 1. The lower end of the elastic bent plate 2 is fixedly connected to the back plate 1. The upper end of the elastic bent plate 2 is slidably connected to the back plate 1. A twisting adjustment mechanism 4 is embedded and rotatably arranged on the back side of the back plate 1. A steel wire rope 14 is connected between the twisting adjustment mechanism 4 and the upper end of the elastic bent plate 2; At the rear center of the back plate 1, there is an activity groove 16 that does not penetrate. At the bottom of the activity groove 16, there is a winding groove 15. A transition rotating shaft 22 is rotatably arranged in the winding groove 15. On the inner side wall of the activity groove 16, limiting grooves 17 are evenly distributed in a circumferential manner. A limiting block 18 is rotatably arranged in the limiting groove 17; The twisting type adjusting mechanism 4 includes a winding shaft 19. The winding shaft 19 is rotatably arranged in the winding groove 15. A steel wire rope 14 penetrates through the upper wall of the back plate 1 and is wound around the winding shaft 19. The steel wire rope 14 is lapped with the transition rotating shaft 22. A twisting block 20 is slidably arranged on the winding shaft 19. On both sides of the twisting block 20, cut-off blocks 21 are symmetrically arranged. On one side of the twisting block 20 away from the winding shaft 19, there is a pulling block 23. The twisting block 20 and the pulling block 23 are movably arranged in the activity groove 16. On one side of the pulling block 23 away from the twisting block 20, a pull ring is embedded. The pull ring is rotatably arranged on the pulling block 23; The limiting block 18 protrudes from the limiting groove 17. On the side of the limiting block 18 close to the limiting groove 17, a torsion spring is arranged at the rotational connection between the limiting block 18 and the back plate 1; When the winding shaft 19 winds the steel wire rope 14, the cut-off block 21 slides from one side of the limiting groove 17 close to the limiting block 18 to the other side of the limiting groove 17. During this period, the cut-off block 21 contacts the part of the limiting block 18 protruding from the limiting groove 17 and pushes the limiting block 18 into the limiting groove 17. When the cut-off block 21 slides past the limiting groove 17, under the elastic action of the torsion spring, the limiting block 18 resets; When the steel wire rope 14 stops winding, under the pulling force of the steel wire rope 14, the winding shaft 19 will drive the twisting block 20 to rotate back. At this time, the cut-off block 21 abuts against the limiting block 18, and the limiting block 18 abuts against the inner wall of the limiting groove 17, preventing the rotation of the twisting block 20, thereby positioning the twisting block 20 and fixing the bending degree of the elastic bending plate 2.

[0018] The anti-overturning expansion mechanism 3 includes expansion plates 30. The expansion plates 30 are symmetrically arranged on both sides of the back plate 1. The expansion plates 30 are connected to the transition connecting plate 5. On the side of the expansion plate 30 away from the back plate 1, an extension plate 32 is embedded and slidably arranged. On the side of the extension plate 32 close to the back plate 1, a pushing plate 33 is rotatably arranged. On the side of the pushing plate 33 away from the extension plate 32, a pressing plate 34 is rotatably arranged. A plurality of reset springs 35 are evenly connected between the pressing plate 34 and the expansion plate 30. In the initial state, under the elastic action of the reset springs 35, the pressing plate 34 is away from the expansion plate 30. The pushing plate 33 is obliquely connected to the pressing plate 34 and the extension plate 32. When the pressing plate 34 is pressed into the inside of the expansion plate 30, the reset springs 35 are compressed, and the pushing plate 33 pushes the extension plate 32 out of the expansion plate 30; On the side of the expansion plate 30 close to the front chest protection plate 8, a fitting plate 31 is movably arranged. A plurality of springs are evenly connected between the fitting plate 31 and the expansion plate 30. The fitting plate 31 is arc-shaped.

[0019] The torsion limiting assembly 9 includes a binding mechanism 10, a fixed limiting mechanism 11 and a telescopic link 29. The binding mechanism 10 and the fixed limiting mechanism 11 are respectively connected to the lower part of the back plate 1, the binding mechanism 10 is arranged above the fixed limiting mechanism 11, and the telescopic link 29 is symmetrically connected between the binding mechanism 10 and the fixed limiting mechanism 11; The binding mechanism 10 includes an abdominal strap 24 and a buckle 25. The abdominal strap 24 is symmetrically arranged on both sides of the back plate 1. The abdominal strap 24 is arranged below the expansion plate 30. The buckle 25 is connected between the symmetrical abdominal straps 24. Velcro is arranged on the symmetrical abdominal straps 24. One end of the abdominal strap 24 on one side passes through the buckle 25 and is connected to the abdominal strap 24 on the other side through the Velcro. The lower end of the front chest protection plate 8 is connected with a fixed connecting belt 13. Velcro is arranged on the fixed connecting belt 13. The fixed connecting belt 13 is connected between the front chest protection plate 8 and the buckle 25 through the Velcro. A tightening strip 26 is embedded in the middle of the abdominal strap 24. The tightening strip 26 is made of plastic material. One end of the telescopic connecting rod 29 is connected to the tightening strip 26. The fixing and limiting mechanism 11 includes a crotch strap 27, which is symmetrically arranged at the lower part of the back plate 1, and is arranged below the abdominal strap 24. A positioning block 28 is provided in the middle of the crotch strap 27, and a silicone pad is provided on the inner side of the positioning block 28. A telescopic connecting rod 29 is connected between the positioning block 28 and the abdominal strap 24, and buckles are connected between the symmetrical crotch straps 27.

[0020] Working principle and workflow: When in use, the patient's head is extended from between the front chest strap 7 and the transition connecting plate 5, the shoulder support 6 is placed on the patient's shoulders, and the abdominal straps 24 on both sides are pulled by both hands to tighten, and one end of the abdominal strap 24 on one side is passed through the buckle 25 and attached to the abdominal strap 24 on the other side through Velcro, and the tightening strip 26 adaptively fits the patient's waist on both sides. Driven by the telescopic connecting rod 29, the positioning block 28 is located below the tightening strip 26, and then the fixed connecting belt 13 is pulled, and the shoulder support 6 is pressed down to make the cotton pad in the shoulder support 6 close to the patient's shoulders, and the front chest protection plate 8 is placed on the patient's chest, so that the surgical wound on the front chest is placed in the make way groove 12 to avoid squeezing the wound and causing discomfort to the patient, and the fixed connecting belt 13 is passed through the upper part of the buckle 25 and fixed by Velcro. At this time, the patient's back fits the arc wall of the fitting plate 31; Then, after adjusting the positioning block 28 to the position on both sides of the patient's hip bone, pull the hip strap 27, and connect the hip straps 27 on both sides through buckles to fix the positioning block 28. The silicone pad is close to the patient to provide strong friction, so that it is difficult for the patient and the positioning block 28 to have relative displacement. The abdominal strap 24 is connected to the positioning block 28 through the telescopic connecting rod 29 and the tightening strip 26, and it is also difficult for the abdominal strap 24 tied to the patient's waist to have relative displacement with the patient, thereby indirectly connecting the patient's waist and hips, making it difficult for these two parts of the patient to have relative displacement or twisting, avoiding the patient from twisting the hip and involving the wound, and ensuring recovery after correction surgery.

[0021] According to the patient's wound condition and body shape, the curvature of the elastic curved plate 2 is adjusted through the twisting adjustment mechanism 4, so that the elastic curved plate 2 can adaptively adjust the curvature to ensure that it fits the patient's back and forces the patient to keep his back straight; specifically, after turning to open the pull ring, twist the pulling block 23, and the pulling block 23 drives the twisting block 20 to rotate, so that the winding shaft 19 reels in the steel wire rope 14, and the steel wire rope 14 pulls the upper end of the elastic curved plate 2, so that the elastic curved plate 2 is bent and fits the patient's back, thereby lifting the patient's back and straightening the patient's chest; in this process, the cutoff block 21 slides from one side of the limiting groove 17 close to the limiting block 18 to the other side of the limiting groove 17, and the cutoff block 21 is cut off. The stop block 21 contacts the portion of the limiting block 18 protruding from the limiting groove 17 and pushes the limiting block 18 into the limiting groove 17. After the stop block 21 slides over the limiting groove 17, the limiting block 18 is reset under the elastic action of the torsion spring. When the bending degree of the elastic bending plate 2 reaches the requirement, the steel wire rope 14 stops winding. Under the pulling of the elastic bending plate 2, the pulling force of the steel wire rope 14 causes the winding shaft 19 to drive the torsion block 20 to rotate. At this time, the stop block 21 abuts against the limiting block 18, and the limiting block 18 abuts against the inner wall of the limiting groove 17 to prevent the torsion block 20 from rotating, thereby positioning the torsion block 20, fixing the bending degree of the elastic bending plate 2, and ensuring that the patient's back is in a straight state. When the patient needs to relax his back, the pulling block 23 is pulled outward through the pull ring, and the twisting block 20 and the winding shaft 19 slide relative to each other, so that the twisting block 20 slides outward in the movable groove 16, and the cut-off block 21 slides outward from the range of the limiting groove 17, and the limiting block 18 no longer abuts against the cut-off block 21. At this time, the twisting block 20 is rotated to make the winding shaft 19 release the wire; after loosening the wire rope 14, the twisting adjustment mechanism 4 can be pressed back into the back panel 1.

[0022] When the patient needs to lie down and rest, after lying down while wearing this device, then press the pressing plate 34 into the inner side of the expansion plate 30. The return spring 35 is compressed, and the inclined push plate 33 pushes the extension plate 32 out of the expansion plate 30, increasing the covering area of the expansion plate 30. It is difficult for the patient to drive the back plate 1 and the expansion plate 30 to turn over together, thus preventing the patient's subconscious turning-over movement. When the patient gets up, under the elastic action of the return spring 35, the pressing plate 34 moves away from the expansion plate 30 again, and the extension plate 32 is pulled back into the expansion plate 30 through the push plate 33.

[0023] The above is the overall working process of the present invention. Just repeat this step when using it next time.

[0024] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0025] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the spirit of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. An orthosis for funnel chest after operation, comprising a back plate (1), characterized in that: On both sides of the backboard (1), anti-overturning expansion mechanisms (3) are symmetrically arranged. An upper transition connecting plate (5) is arranged on the upper part of the anti-overturning expansion mechanism (3). A shoulder support (6) is arranged on the upper part of the transition connecting plate (5). A front chest strap (7) is connected between the symmetric shoulder supports (6). A front chest protection plate (8) is arranged in the middle of the front chest strap (7). A torsion limiting assembly (9) is arranged at the lower part of the backboard (1). The front chest protection plate (8) is connected to the torsion limiting assembly (9). An elastic bending plate (2) is arranged on the front side of the backboard (1). The lower end of the elastic bending plate (2) is fixedly connected to the backboard (1), and the upper end of the elastic bending plate (2) is slidably connected to the backboard (1). A twisting adjustment mechanism (4) is rotatably embedded on the rear side of the backboard (1). A steel wire rope (14) is connected between the twisting adjustment mechanism (4) and the upper end of the elastic bending plate (2). The anti-overturning expansion mechanism (3) includes an expansion plate (30), an extension plate (32), a push plate (33) and a pressing plate (34). The expansion plates (30) are symmetrically arranged on both sides of the backboard (1). The expansion plates (30) are connected to the transition connecting plate (5). The extension plate (32) is slidably embedded on the side of the expansion plate (30) away from the backboard (1). The push plate (33) is rotatably arranged on the side of the extension plate (32) close to the backboard (1). The pressing plate (34) is rotatably arranged on the side of the push plate (33) away from the extension plate (32). A reset spring (35) is uniformly connected between the pressing plate (34) and the expansion plate (30). The torsion limiting assembly (9) includes a binding mechanism (10), a fixed limiting mechanism (11) and a telescopic connecting rod (29). The binding mechanism (10) and the fixed limiting mechanism (11) are respectively connected to the lower part of the backboard (1). The binding mechanism (10) is arranged above the fixed limiting mechanism (11). The telescopic connecting rods (29) are symmetrically connected between the binding mechanism (10) and the fixed limiting mechanism (11).

2. The orthosis for funnel chest postoperative correction according to claim 1, wherein: An activity groove (16) is arranged at the center of the rear side of the backboard (1) without penetrating. A winding groove (15) is arranged at the bottom of the activity groove (16). A transition rotating shaft (22) is rotatably arranged in the winding groove (15). Limiting grooves (17) are circumferentially and uniformly arranged on the inner side wall of the activity groove (16). Limiting blocks (18) are rotatably arranged in the limiting grooves (17).

3. The orthosis for funnel chest correction according to claim 2, wherein: The twisting adjustment mechanism (4) includes a pulling block (23), a twisting block (20) and a winding shaft (19). The winding shaft (19) is rotatably arranged in the winding groove (15). The steel wire rope (14) passes through the upper wall of the back plate (1) and is wound around the winding shaft (19). The steel wire rope (14) is lapped with the transition rotating shaft (22). The twisting block (20) is slidably arranged on the winding shaft (19). Cut-off blocks (21) are symmetrically arranged on both sides of the twisting block (20). The pulling block (23) is arranged on the side of the twisting block (20) away from the winding shaft (19). The twisting block (20) and the pulling block (23) are movably arranged in the activity groove (16). A pull ring is embedded on the side of the pulling block (23) away from the twisting block (20), and the pull ring is rotatably arranged on the pulling block (23).

4. The orthosis after funnel chest operation according to claim 3, wherein: The limiting block (18) protrudes from the limiting groove (17). The limiting block (18) is arranged on the side close to the limiting groove (17). A torsion spring is arranged at the rotational connection of the limiting block (18) and the back plate (1). When the winding shaft (19) winds up the steel wire rope (14), the cut-off block (21) slides from the side of the limiting groove (17) close to the limiting block (18) to the other side of the limiting groove (17). During this period, the part of the cut-off block (21) protruding from the limiting groove (17) touches the limiting block (18) and pushes the limiting block (18) into the limiting groove (17). When the cut-off block (21) slides past the limiting groove (17), under the elastic action of the torsion spring, the limiting block (18) resets. When the steel wire rope (14) stops winding, the cut-off block (21) abuts against the limiting block (18), and the limiting block (18) abuts against the inner wall of the limiting groove (17) to prevent the twisting block (20) from rotating.

5. The orthosis for funnel chest postoperative orthosis according to claim 4, characterized in that: The binding mechanism (10) includes an abdominal binding belt (24) and a buckle (25). The abdominal binding belts (24) are symmetrically arranged on both sides of the back plate (1). The abdominal binding belts (24) are arranged below the extension plate (30). The buckle (25) is connected between the symmetric abdominal binding belts (24). Magic tapes are arranged on the symmetric abdominal binding belts (24). A tightening strip (26) is embedded in the middle of the abdominal binding belt (24). One end of the telescopic connecting rod (29) is connected to the tightening strip (26).

6. The orthosis after funnel chest operation according to claim 5, characterized in that: The fixed limiting mechanism (11) includes a hip binding belt (27) and a positioning block (28). The hip binding belts (27) are symmetrically arranged at the lower part of the back plate (1). The hip binding belts (27) are arranged below the abdominal binding belts (24). The positioning block (28) is arranged in the middle of the hip binding belt (27). A silica gel pad is arranged on the inner side of the positioning block (28). The telescopic connecting rod (29) is connected between the positioning block (28) and the abdominal binding belt (24). A buckle is connected between the symmetric hip binding belts (27).

7. The orthosis for funnel chest correction according to claim 6, characterized in that: The anti-overturning expansion mechanism (3) further includes a fitting plate (31). The fitting plate (31) is movably arranged on the side of the extension plate (30) close to the front chest protection plate (8). Springs are evenly connected between the fitting plate (31) and the extension plate (30). The fitting plate (31) is arc-shaped.

8. The orthosis for funnel chest correction according to claim 7, wherein: A relief groove (12) is penetratingly provided on the front chest protection plate (8). A fixed connection strap (13) is connected to the lower end of the front chest protection plate (8). A magic tape is provided on the fixed connection strap (13), and the fixed connection strap (13) is connected between the front chest protection plate (8) and the buckle (25) through the magic tape.

Images