A neck brace for pre-thyroid surgery positioning training

By employing a spiral structure composed of a movable half-thread and a fixed half-thread, along with a magnet block design in the cervical collar, the problem of loose threaded rods is solved, achieving stable fixation and vibration resistance of the cervical collar, thereby improving patient comfort and the stability of the surgical position.

CN122075262APending Publication Date: 2026-05-26保定市第一中心医院
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
保定市第一中心医院
Filing Date
2026-03-26
Publication Date
2026-05-26

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Abstract

This invention belongs to the field of cervical collar technology, specifically an adjustable cervical collar for pre-thyroid surgery posture training. The proposed solution includes: a support mechanism for supporting the neck; a lifting mechanism mounted on the support mechanism; the lifting mechanism comprising: multiple threaded cylinders fixedly mounted on the support mechanism; a threaded rod threaded through one end of each threaded cylinder; and a rotating rod threaded through the other end of each threaded cylinder. In this invention, the rotating rod and threaded rod can move up and down within the threaded cylinder. A pin is helically inserted into the gap between the movable half-thread and the fixed half-thread. Multiple magnets in the pin move to the middle of two magnet plates, simultaneously repelling each other with the same polarity, increasing the friction between the movable half-thread and the inner wall of the threaded cylinder. The movable half-thread and the rotating rod are synchronously and stably fixed within the threaded cylinder, providing advantages such as vibration resistance and secure fixation.
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Description

Technical Field

[0001] This invention relates to the field of neck brace technology, and more particularly to an adjustable neck brace for pre-thyroid surgery positioning training. Background Technology

[0002] During thyroid surgery, patients need to maintain a hyperextended neck position for a long time to expose the surgical field. In order to reduce intraoperative blood pressure fluctuations and breathing difficulties, and reduce postoperative complications such as neck pain, headache, nausea, and vomiting, clinical practice generally uses a neck brace to elevate the shoulders and tilt the head back for postural training. Existing technologies typically use a threaded structure to adjust the length of the neck brace. The threaded rod can move up and down within a threaded cylinder by rotation, and is positioned within the cylinder by friction between the rod and the inner wall. However, the threaded rod is prone to loosening under vibration, lacks vibration resistance, and is not securely fixed. Therefore, there is an urgent need to provide an adjustable neck brace for pre-thyroid surgery positioning training. Summary of the Invention

[0003] Based on the technical problems in the background art, the present invention proposes an adjustable neck brace for pre-thyroid surgery positioning training.

[0004] This invention proposes an adjustable neck brace for pre-thyroid surgery posture training, comprising: a support mechanism for supporting the neck; and a lifting mechanism mounted on the support mechanism. The lifting mechanism includes: multiple threaded cylinders fixedly mounted on the support mechanism; a threaded rod threaded through one end of each threaded cylinder; a rotating rod threaded through the other end of each threaded cylinder; a rotating cylinder rotatably mounted on the other end of the rotating rod via a rotating component; an active ring fixedly mounted on the other end of the rotating rod; a movable ring movably mounted in the middle of the rotating rod; a rotating ring fixedly mounted around the periphery of the movable ring; a pin fixedly embedded in the movable ring; a fixed half-thread helically fixedly mounted on one end of the rotating rod; and a movable half-thread helically movably mounted on one end of the rotating rod, with one end of the rotating rod threaded into the other end of the threaded cylinder via the movable and fixed half-threads.

[0005] Preferably, the lifting mechanism further includes: a fixing block, wherein multiple fixing blocks are fixedly adhesively disposed in the pin strip; a magnet block, wherein multiple magnet blocks are fixedly disposed in the pin strip; a magnet strip, wherein two magnet strips are respectively fixedly disposed in the movable half thread and the fixed half thread, and the repulsive force between the magnet block and the two magnet strips is greater than the attractive force between the two magnet blocks; and a magnet piece, wherein two magnet pieces are respectively embedded in the movable half thread and the fixed half thread.

[0006] Preferably, the lifting mechanism further includes: a threaded groove, the threaded groove opening being disposed on the inner wall of the threaded cylinder; a threaded hole, the threaded hole opening being disposed at one end of the threaded cylinder; a vertical hole, multiple vertical holes opening being disposed in the pin bar; a pin opening, the pin opening being disposed in the movable ring; and a helical hole, two helical holes opening being disposed in the movable half thread and the fixed half thread respectively.

[0007] Preferably, the support mechanism includes: pressing blocks, two pressing blocks respectively fixedly disposed at one end of the threaded cylinder and the end of the rotating cylinder; a fixing ring, the fixing ring being fixedly sleeved on the threaded cylinder; arc blocks, multiple arc blocks respectively fixedly disposed on the surface of multiple fixing rings; a vertical rod, both ends of the vertical rod being fixedly disposed on the surface of the arc blocks; a pressing plate, the pressing plate being fixedly disposed at the end of multiple pressing blocks; and a semi-circular pillow, the semi-circular pillow being adhesively disposed on the surface of the pressing plate.

[0008] Preferably, the vertical rod and the threaded cylinder are kept parallel, the pressing plate and the semi-circular pillow are both arc-shaped, and multiple arc blocks, multiple vertical rods, multiple fixing rings, multiple threaded cylinders and multiple rings of pressing blocks are respectively arranged in the middle of the two pressing plates.

[0009] Preferably, the shape of the threaded groove is adapted to the live half thread and the fixed half thread, the threaded rod is adapted to the threaded hole, and the threaded rod is threadedly embedded in the threaded hole of the threaded cylinder, so that the end of the threaded rod abuts against one end of the rotating rod.

[0010] Preferably, the helical pitch of the live half-thread is consistent with the helical pitch of the fixed half-thread, the helical pitch of the thread groove is consistent with the helical pitch of the live half-thread, and the pin bar is helically inserted in the middle of the live half-thread and the fixed half-thread.

[0011] Preferably, the fixing block is formed by the curing of glue, and the fixing block and the magnet block are located in the vertical hole. The fixing block fills the two ports of the vertical hole, and the two vertical holes fix the magnet block in the vertical hole of the pin strip.

[0012] Preferably, the magnet strips of the live half-thread and the fixed half-thread are attracted to each other by opposite polarities, and multiple magnet blocks are spirally wrapped around the middle of the live half-thread and the fixed half-thread, while the multiple magnet blocks simultaneously repel the two magnet strips by the same polarity.

[0013] Preferably, the helical pitch of the pin bar is consistent with the helical pitch of the fixed half thread. The pin bar rotates around the axis of the rotating rod, so that the pin bar is inserted into the gap between the movable half thread and the fixed half thread. The pin bar, movable half thread, fixed half thread, magnet bar and magnet sheet and other structures are spirally distributed around the axis of the threaded cylinder around the rotating rod.

[0014] The beneficial effects of this invention are as follows: The movable half-thread and the fixed half-thread form a threaded strip spirally wound around one end of the rotating rod. The rotating rod and the threaded strip can move up and down in the threaded cylinder by rotating. The position of the rotating rod in the threaded cylinder is adjusted. The pin is spirally inserted into the gap between the movable half-thread and the fixed half-thread. Multiple magnets in the pin move to the middle of the two magnet plates. The multiple magnets repel the two magnet plates with the same polarity at the same time. The repulsive force drives the movable half-thread and the fixed half-thread away from each other. The movable half-thread abuts against the threaded groove of the threaded cylinder, increasing the friction between the movable half-thread and the inner wall of the threaded cylinder. This makes the movable half-thread and the rotating rod synchronously fixed in the threaded cylinder. The movable half-thread and the rotating rod are synchronously and stably fixed in the threaded cylinder, which has a good vibration resistance. The fixed half-thread is fixed to the surface of the rotating rod. The magnetic pieces in the fixed half-thread repel the like poles of multiple magnets. The repulsive force drives the pin strip and multiple magnet blocks away from the fixed half-thread, causing the pin strip and multiple magnet blocks to move closer to the movable half-thread. This increases the repulsive force between the multiple magnet blocks and the magnetic strip in the movable half-thread. The movable half-thread is driven to press against the thread groove of the threaded cylinder, greatly increasing the friction between the movable half-thread and the inner wall of the threaded cylinder. This makes the movable half-thread and the rotating rod synchronously and stably fixed in the threaded cylinder, which has the advantages of vibration resistance and firm fixation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 2 This is a schematic diagram of the support mechanism structure of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 1 ; Figure 3 This is a schematic diagram of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 4 This is a schematic diagram of the support mechanism structure of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 2 ; Figure 5 This is a schematic cross-sectional view of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training, as proposed in this invention. Figure 1 ; Figure 6 This is a schematic cross-sectional view of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training, as proposed in this invention. Figure 2 ; Figure 7 This is a schematic cross-sectional view of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training, as proposed in this invention. Figure 3 ; Figure 8 This is a disassembly diagram of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 1 ; Figure 9 This is a disassembly diagram of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 2 ; Figure 10 This is a disassembly diagram of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 3 ; Figure 11 This is a disassembly diagram of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 4 ; Figure 12 This is a disassembly diagram of the lifting mechanism of an adjustable neck brace for pre-thyroid surgery training proposed in this invention. Figure 5 ; Figure 13 This is a schematic diagram showing the disassembly of the fixing block of an adjustable neck brace for pre-thyroid surgery training proposed in this invention.

[0016] In the diagram: 1. Arc block; 2. Vertical rod; 3. Fixing ring; 4. Threaded cylinder; 41. Threaded rod; 42. Threaded groove; 43. Threaded hole; 44. Rotating rod; 45. Driving ring; 46. Small bearing; 47. Rotating cylinder; 48. Movable ring; 49. Rotating ring; 410. Pin bar; 411. Fixing block; 412. Magnet block; 413. Live half thread; 414. Fixed half thread; 415. Magnet bar; 416. Magnet piece; 417. Vertical hole; 418. Pin opening; 419. Spiral hole; 5. Pressing block; 6. Pressing plate; 7. Semicircular pillow. Detailed Implementation

[0017] Reference Figures 1 to 13 An adjustable neck brace for pre-thyroid surgery posture training includes: a support mechanism for supporting the neck of a person, the two support mechanisms being arc-shaped; and a lifting mechanism mounted on the support mechanism, the lifting mechanism opening up the support mechanism to adjust the height of the support mechanism.

[0018] In this invention, the lifting mechanism includes: a threaded cylinder 4, which is fixedly mounted on the support mechanism; a threaded rod 41, which is threaded through one end of the threaded cylinder 4 and can be rotatably embedded in one end of the threaded cylinder 4; the threaded rod 41 abuts against one end of the rotating rod 44, which can limit the position of one end of the rotating rod 44 in the threaded cylinder 4; a rotating rod 44, one end of which is threaded through the other end of the threaded cylinder 4; and a rotating cylinder 47, which is rotatably sleeved on the other end of the rotating rod 44 by a rotating component, which is a small bearing 46. The small bearing 46 is sleeved on the other end of the rotating rod 44, and the rotating cylinder 47 is sleeved around the small bearing 46. The small bearing 46 is a ball bearing that can be obtained through market purchase or private customization, so that the rotating rod 44 can be rotatably mounted in the rotating cylinder 47.

[0019] In this invention, there is an active ring 45, which is fixedly sleeved on the other end of the rotating rod 44. By rubbing the active ring 45 by hand, the active ring 45 and the rotating rod 44 can be rotated synchronously by hand. The rotating rod 44 can move within the threaded cylinder 4, adjusting its position within the cylinder 4. There is also a movable ring 48, which is movably sleeved in the middle of the rotating rod 44 and can move along the axial direction of the rotating rod 44. Finally, there is a rotating ring 49, which is fixedly sleeved around the movable ring 48. By rubbing the rotating ring 49 by hand, the rotating ring 49 and the movable ring 48 can be rotated by hand. In this invention, a pin bar 410 has one end fixed to a pin in a movable ring 48. The pin bar 410 rotates to move along the shape of a fixed half-thread 414. The fixed half-thread 414 is spirally fixed to one end of a rotating rod 44. A movable half-thread 413 is spirally movably disposed at one end of the rotating rod 44. One end of the rotating rod 44 is threaded into one end of a threaded cylinder 4 through the movable half-thread 413 and the fixed half-thread 414. The pin bar 410 is inserted between the movable half-thread 413 and the fixed half-thread 414. The pin bar 410 can spread the movable half-thread 413 and the fixed half-thread 414, allowing the movable half-thread 413 to move axially along the rotating rod 44, increasing the positive pressure of the movable half-thread 413 on the threaded groove 42, and fixing the movable half-thread 413 in the threaded groove 42 on the inner wall of the threaded cylinder 4.

[0020] In this invention, the lifting mechanism further includes: a fixing block 411, multiple fixing blocks 411 are adhesively fixed in the pin strip 410, the fixing blocks 411 fill both ends of the magnet block 412, fixing the magnet block 412 in the pin strip 410; magnet blocks 412, multiple magnet blocks 412 are fixedly disposed in the pin strip 410; magnet strips 415, two magnet strips 415 are respectively fixedly disposed in the movable half thread 413 and the fixed half thread 414, the magnet strips 415 in the movable half thread 413 and the fixed half thread 414 are of opposite orientation. The two magnets 413 and 414 are attracted to each other, so that the edges of the live half thread 413 and the fixed half thread 414 are tightly attached together. The magnets 416 are respectively embedded in the live half thread 413 and the fixed half thread 414. The repulsive force between the magnet block 412 and the two magnet strips 415 is greater than the attraction force between the two magnet blocks 412. After the magnet block 412 enters between the two magnet strips 415, the repulsive force between the magnet block 412 and the two magnet strips 415 pushes the live half thread 413 to press against the thread groove 41 on the inner wall of the threaded cylinder 4.

[0021] In this invention, the lifting mechanism further includes: a threaded groove 42, the threaded groove 42 being open on the inner wall of the threaded cylinder 4, the threaded groove 42 being larger than the live half thread 413 and the fixed half thread 414 forming an external thread, the external thread rotating and moving within the threaded groove 42 on the inner wall of the threaded cylinder 4; a threaded hole 43, the threaded hole 43 being open at one end of the threaded cylinder 4, the threaded rod 41 rotating into the threaded hole 43 at one end of the threaded cylinder 4, the end of the threaded rod 41 moving along the threaded cylinder 4, the threaded rod 41 limiting the rotation rod 44; and a vertical hole 417, multiple of which... A vertical hole 417 is provided in the pin strip 410, and multiple vertical holes 417 pass through the pin strip 410. The multiple vertical holes 417 are spirally arranged on the pin strip 410. A pin opening 418 is provided in the movable ring 48, and the shape of the pin opening 418 is adapted to the pin strip 410. Two spiral holes 419 are provided in the movable half thread 413 and the fixed half thread 414 respectively. The magnet piece 416 can be spirally inserted into the spiral holes 419 of the movable half thread 413 and the fixed half thread 414.

[0022] In this invention, the support mechanism includes: pressing blocks 5, two pressing blocks 5 are respectively fixedly disposed at one end of the threaded cylinder 4 and the end of the rotating cylinder 47, the pressing blocks 5 can increase the contact area between one end of the threaded cylinder 4 and the pressing plate 6, and the pressing blocks 5 can increase the contact area between the rotating cylinder 47 and the pressing plate 6; fixing ring 3, the fixing ring 3 is fixedly sleeved on the threaded cylinder 4, the threaded cylinder 4 passes through the fixing ring 3, so that the threaded cylinder 4 and the fixing ring 3 are kept fixed; arc blocks 1, multiple arc blocks 1 are respectively fixedly disposed on the surface of multiple fixing rings 3, the two ends of the arc blocks 1 are respectively fixed to the surface of two fixing rings 3, so that the multiple arc blocks 1 and the multiple fixing rings 3 are kept fixed.

[0023] In this invention, a vertical rod 2 is fixedly mounted on the surfaces of two arc blocks 1 at both ends, and the vertical rod 2 and the two arc blocks 1 remain fixed. A pressing plate 6 is fixedly mounted on the ends of multiple pressing blocks 5, and the shape of the pressing plate 6 is adapted to the human body. A semi-circular pillow 7 is adhesively mounted on the surface of the pressing plate 6, and the interior of the semi-circular pillow 7 is filled with a soft and elastic material, making the semi-circular pillow 7 elastic. The semi-circular pillow 7 fits against the neck of the human body, providing comfortable support for the neck. The vertical rod 2 and the threaded cylinder 4 remain parallel, and both the pressing plate 6 and the semi-circular pillow 7 are arc-shaped. Multiple arc blocks 1, multiple vertical rods 2, multiple fixing rings 3, multiple threaded cylinders 4, and multiple pressing blocks 5 are arranged around the middle of the two pressing plates 6.

[0024] In this invention, the shape of the threaded groove 42 is adapted to the live half thread 413 and the fixed half thread 414, and the threaded rod 41 is adapted to the threaded hole 43. The threaded rod 41 is threadedly embedded in the threaded hole 43 of the threaded cylinder 4, so that the end of the threaded rod 41 abuts against one end of the rotating rod 44. The helical pitch of the live half thread 413 and the helical pitch of the fixed half thread 414 are consistent. The helical pitch of the threaded groove 42 and the helical pitch of the live half thread 413 are consistent. The pin 410 is helically inserted in the middle of the live half thread 413 and the fixed half thread 414. The pin 410 rotates and moves up and down. The pin 410 can be inserted into the gap between the live half thread 413 and the fixed half thread 414 to fill the gap between the live half thread 413 and the fixed half thread 414.

[0025] In this invention, the fixing block 411 is formed by the solidification of glue. The fixing block 411 and the magnet block 412 are located in the vertical hole 417. The fixing block 411 fills the two ends of the vertical hole 417. The two vertical holes 417 fix the magnet block 412 in the vertical hole 417 of the pin strip 410. Multiple magnet blocks 412 can be placed into multiple vertical holes 417 of the pin strip 410 respectively. Then, glue is filled into multiple vertical holes 417 of the pin strip 410. After the glue solidifies, it forms the fixing block 411. Then, glue is applied to the other end of the magnet block 412 so that the two fixing blocks 411 are fixed in the magnet block 412. The magnet block 412 and the fixing block 411 are fixed in multiple vertical holes 417 of the pin strip 410. Multiple magnet blocks 412 can be fixed in multiple vertical holes 417 of the pin strip 410 respectively.

[0026] In this invention, the magnet strips 415 of the movable half-thread 413 and the fixed half-thread 414 attract each other with opposite polarities. Multiple magnet blocks 412 spirally surround the middle of the movable half-thread 413 and the fixed half-thread 414. The multiple magnet blocks 412 simultaneously repel the two magnet strips 415 with the same polarity. The multiple magnet blocks 412 enter the middle of the two magnet strips 415 along the spiral direction. The magnet blocks 412 repel the two magnet strips 415 with the same polarity respectively. The repulsive force drives the two magnet strips 415 to move, so that the movable half-thread 413 moves along the axial direction of the rotating rod 44. The surface of the movable half-thread 413 abuts against the thread groove 42 of the threaded cylinder 4, increasing the frictional force of the movable half-thread 413 and the fixed half-thread 414 against the thread groove 42 of the threaded cylinder 4, and fixing the movable half-thread 413 and the fixed half-thread 414 in the thread groove 42 of the threaded cylinder 4.

[0027] In this invention, the helical pitch of the pin bar 410 and the helical pitch of the fixed half thread 414 are consistent. The pin bar 410 rotates around the axis of the rotating rod 44, so that the pin bar 410 is inserted into the gap between the movable half thread 413 and the fixed half thread 414. The pin bar 410, movable half thread 413, fixed half thread 414, magnet bar 415 and magnet piece 416 and other structures are spirally distributed around the axis of the threaded cylinder 4 around the rotating rod 44.

[0028] In use, first, place the semi-circular pillow 7 on the person's shoulder, and place the other semi-circular pillow 7 against the person's neck. Next, rub the active ring 45 with your hand to make the active ring 45, rotating rod 44, movable semi-thread 413, and fixed semi-thread 414 rotate synchronously. The rotating rod 44, movable semi-thread 413, and fixed semi-thread 414 move up and down synchronously at the other end of the threaded cylinder 4, which can change the distance between the two pressing blocks 5. The two pressing blocks 5 move up and down repeatedly to press the person's neck, performing posture training for the neck. Multiple rotating rods 44 can be adjusted to move up and down at the other end of the threaded cylinder 4 according to the above operation to perform posture training for the neck. After completing the training, the position of the rotating rod 44 in the threaded cylinder 4 needs to be fixed. Rub the rotating ring 49 with your hand to make the movable ring 48, rotating ring 49, and two pin bars 410 rotate synchronously along the axis of the rotating rod 44. The two pin bars 410 move downward along the axis of the rotating rod 44. 410 is inserted into the middle of the movable half-thread 413 and the fixed half-thread 414 respectively, so that multiple magnet blocks 412 enter the middle of the magnet pieces 416 of the movable half-thread 413 and the fixed half-thread 414 respectively. The multiple magnet blocks 412 and the two magnet pieces 416 are like-pairs and repel each other. The repulsive force between the multiple magnet blocks 412 and the two magnet pieces 416 causes the movable half-thread 413 and the fixed half-thread 414 to move away from each other, so that the movable half-thread 413 and the fixed half-thread 414 are tightly attached to the inner side of the thread groove 42 of the threaded cylinder 4, increasing the friction between the movable half-thread 413 and the fixed half-thread 414 and the threaded cylinder 4, so that the movable half-thread 413 and the fixed half-thread 414 are fixed in the threaded cylinder 4, thereby fixing the rotating rod 44 in the threaded cylinder 4, so that the rotating rod 44 and the threaded cylinder 4 are supported between the two pressing blocks 5, and so that the two pressing plates 6 are supported on the human neck. According to the above operation, the multiple rotating rods 44 are fixed to the other end of the multiple threaded cylinders 4 respectively, thus completing the support work for the human neck.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An adjustable neck brace for pre-thyroid surgery positioning training, characterized in that: include: A support mechanism used to support the human neck; The lifting mechanism is mounted on the support mechanism; The lifting mechanism includes: Threaded cylinder (4), multiple threaded cylinders (4) are fixedly installed on the support mechanism; Threaded rod (41), the thread of threaded rod (41) passes through one end of threaded cylinder (4); Rotating rod (44), one end of rotating rod (44) is threaded through the other end of threaded cylinder (4); Rotating cylinder (47) is rotatably sleeved on the other end of rotating rod (44) via a rotating component; The active ring (45) is fixedly sleeved on the other end of the rotating rod (44); The movable ring (48) is movably fitted in the middle of the rotating rod (44); Rotating ring (49) is fixedly sleeved on the outer periphery of movable ring (48); A pin bar (410) is fixedly embedded in the movable ring (48) at one end; A fixed half thread (414) is helically fixedly arranged around one end of the rotating rod (44); The live half thread (413) is spirally and movably disposed at one end of the rotating rod (44). One end of the rotating rod (44) is threaded into the other end of the threaded cylinder (4) through the live half thread (413) and the fixed half thread (414).

2. The adjustable neck brace for pre-operative postural training as described in claim 1, characterized in that, The lifting mechanism also includes: Fixing blocks (411), multiple fixing blocks (411) are fixed with adhesive in the pin strip (410); A magnet block (412), multiple magnet blocks (412) are fixedly disposed in the pin strip (410); Two magnet strips (415) are fixedly installed in the live half thread (413) and the fixed half thread (414) respectively. The repulsive force between the magnet block (412) and the two magnet strips (415) is greater than the attractive force between the two magnet blocks (412). Two magnet pieces (416) are respectively embedded in the live half thread (413) and the fixed half thread (414).

3. The adjustable neck brace for pre-operative postural training as described in claim 2, characterized in that, The lifting mechanism also includes: Threaded groove (42), the opening of threaded groove (42) is provided on the inner wall of threaded cylinder (4); A threaded hole (43) is provided at one end of the threaded cylinder (4); Vertical holes (417), multiple vertical holes (417) are provided in the pin bar (410); The pin opening (418) is located in the movable ring (48); The spiral holes (419) are respectively set in the live half thread (413) and the fixed half thread (414).

4. The adjustable neck brace for preoperative postural training of thyroid surgery according to claim 3, characterized in that, The supporting structure includes: Pressing blocks (5), the two pressing blocks (5) are respectively fixedly installed at one end of the threaded cylinder (4) and the end of the rotating cylinder (47); A fixing ring (3) is fixedly sleeved on the threaded cylinder (4); Arc blocks (1), multiple arc blocks (1) are respectively fixedly set on the surface of multiple fixed rings (3); A vertical rod (2) is fixed at both ends to the surface of the arc block (1); Press plate (6), which is fixedly disposed at the ends of multiple pressing blocks (5); A semi-circular pillow (7) is attached to the surface of a pressing plate (6) with adhesive.

5. The adjustable neck brace for preoperative postural training of thyroid surgery according to claim 4, characterized in that, The vertical rod (2) and the threaded cylinder (4) remain parallel. The pressing plate (6) and the semi-circular pillow (7) are both arc-shaped. Multiple arc blocks (1), multiple vertical rods (2), multiple fixing rings (3), multiple threaded cylinders (4) and multiple pressing blocks (5) are arranged in a ring around the middle of the two pressing plates (6).

6. The adjustable neck brace for preoperative postural training of thyroid surgery according to claim 4, characterized in that, The shape of the threaded groove (42) is compatible with the live half thread (413) and the fixed half thread (414), the threaded rod (41) is compatible with the threaded hole (43), the threaded rod (41) is threadedly embedded in the threaded hole (43) of the threaded cylinder (4), so that the end of the threaded rod (41) abuts against one end of the rotating rod (44).

7. The adjustable neck brace for pre-operative postural training according to claim 4, characterized in that, The pitch of the live half thread (413) is consistent with the pitch of the fixed half thread (414), the pitch of the thread groove (42) is consistent with the pitch of the live half thread (413), and the pin bar (410) is helically inserted between the live half thread (413) and the fixed half thread (414).

8. The adjustable neck brace for preoperative postural training of thyroid surgery according to claim 4, characterized in that, The fixing block (411) is formed by the solidification of glue. The fixing block (411) and the magnet block (412) are located in the vertical hole (417). The fixing block (411) fills the two ports of the vertical hole (417). The two vertical holes (417) fix the magnet block (412) in the vertical hole (417) of the pin strip (410).

9. The adjustable neck brace for preoperative postural training of thyroid surgery according to claim 4, characterized in that, The magnet strips (415) of the live half thread (413) and the fixed half thread (414) are attracted to each other by opposite polarities, and multiple magnet blocks (412) are spirally wrapped around the middle of the live half thread (413) and the fixed half thread (414), and the multiple magnet blocks (412) simultaneously repel the two magnet strips (415) of the same polarity.

10. A neck brace for pre-operative postural training in thyroid surgery according to claim 4, characterized in that, The helical pitch of the pin bar (410) and the helical pitch of the fixed half thread (414) are consistent. The pin bar (410) rotates around the axis of the rotating rod (44) so ​​that the pin bar (410) is inserted into the gap between the live half thread (413) and the fixed half thread (414). The pin bar (410), live half thread (413), fixed half thread (414), magnet bar (415) and magnet piece (416) are spirally distributed around the axis of the threaded cylinder (4) around the rotating rod (44).