Adjustable protection device for relieving secondary pain after child tumor operation

Abstract

The invention discloses an adjustable protection device for relieving secondary pain after a child tumor operation, and relates to the technical field of postoperative protection.The adjustable protection device comprises straps, a limiting assembly, an adjusting mechanism and a training mechanism, shoulder rests are fixedly connected to the opposite faces of the top ends of the straps, the shoulder rests are jointly and fixedly connected with a same neck ring, and the neck ring is fixedly connected with the limiting assembly; an annular pressure cavity is formed in the neck ring. By arranging the locking mechanism and the buffering mechanism, the maximum head lowering angle of a child is limited while the head of the child is fixed, the angle can be freely adjusted, and meanwhile resistance is provided for the head raising action of the child so that the situation that the child raises the head too fast to tear a wound can be avoided; a speed limiting mechanism is arranged; the speed control mechanism is matched with the locking mechanism to realize speed control when the child turns left and right; the adjusting mechanism is arranged to be matched with the locking mechanism to achieve amplitude control when the child turns the head leftwards and rightwards, and the maximum amplitude can be freely adjusted.

Description

Technical Field

[0001] The present invention relates to the technical field of postoperative protection, and specifically provides an adjustable protection device for alleviating secondary pain after pediatric tumor surgery. Background Art

[0002] Secondary pain refers to the pain that reappears after surgery for certain reasons after the initial pain has been relieved, such as pain caused by improper movement after surgery that leads to the tearing of the wound. In tumor surgeries performed on the head or neck, due to the relatively frequent joint movements and the special physiological characteristics of children, the risk of secondary pain and the sensitivity to pain after surgery are higher than those in adults.

[0003] After retrieval, the Chinese patent with the publication number CN114795659B addresses the problem that during the postoperative recovery process of patients, there are often involuntary head movements such as raising, lowering, and turning the head left and right. However, during the process of raising the head, it is impossible to accurately grasp the amplitude of the head movement, resulting in the stretching of the neck muscles, which will cause pulling on the surgical wound and have a certain impact on the recovery of the wound. It includes a nursing body one and a nursing body two, which are symmetrically distributed, and a chin sleeve is arranged above the nursing body one and the nursing body two; through the cooperation of the nursing body one, the nursing body two, the chin sleeve, the hook surface of the magic tape, the loop surface of the magic tape, and the connecting belt, the present invention can quickly connect the chin position of the patient's head, effectively prevent the patient's head from being raised upward, prevent the wound muscles of the neck from being pulled, and facilitate further recovery protection of the neck wound.

[0004] However, in the above solution, the limiting function of the patient's head movement is achieved based on the movement of the connecting cloth driven by the chin sleeve, and the maximum movement stroke of the connecting cloth is a fixed length, that is, the amplitude of the limiting function in the above solution is not adjustable and it is difficult to freely control according to the body types and disease conditions of different patients; moreover, in the above solution, only the rotation amplitude of the patient's head can be restricted, and when the patient involuntarily turns the head, the too-fast rotation speed will also cause the risk of tearing the postoperative wound and resulting in secondary pain, making it difficult for the device to achieve the expected protection effect; on the other hand, the chin sleeve fits tightly on the patient's chin, causing the opening and closing movements of the patient's mouth during eating to drive the synchronous movement of the chin sleeve and pull the connecting belt, increasing the resistance of the patient during eating. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable protection device for alleviating secondary pain after pediatric tumor surgery, which has the advantages of free adjustment and all-round protection, and solves the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable protective device for relieving secondary pain after pediatric tumor surgery, comprising a shoulder strap, a limiting component, an adjustment mechanism and a training mechanism, shoulder pads are fixedly connected to the opposite surfaces of the top of the shoulder strap, the shoulder pads are fixedly connected to the same neck ring, and an annular pressure chamber is opened inside the neck ring;

[0007] The limiting assembly includes a speed limiting mechanism for controlling the speed of the child's head turning, a locking mechanism for controlling the angle of the child's head lowering, and a buffer mechanism for limiting the child's head raising action, the speed limiting mechanism includes a limiting ring that is limitedly rotatably connected to the outer periphery of the neck ring, the locking mechanism includes a locking frame that is limitedly rotatably connected to the speed limiting mechanism, and the buffer mechanism includes a neck pillow that is limitedly rotatably connected to the speed limiting mechanism;

[0008] The adjustment mechanism includes a guide rail fixedly connected to the upper surface of the neck ring;

[0009] The training mechanism comprises a fixing seat fixedly connected to one side of the upper surface of the neck ring.

[0010] Preferably, the shoulder strap is set to be adjustable in tightness, the interior of the pressure chamber is filled with hydraulic oil, and a through groove is opened at a position corresponding to the fixing seat on the upper surface of the neck ring and the through groove is connected to the pressure chamber.

[0011] Preferably, one side of the limiting ring is fixedly connected to a bracket, the top of the bracket is fixedly connected to an arc frame, an arc rod is fixedly connected to the inner contour of the limiting ring, the upper surface of the arc rod is fixedly connected to a rack, piston heads are provided at both ends of the arc rod, the ends of the two piston heads away from the arc rod are fixedly connected to arc springs, the ends of the two arc springs away from the piston heads are commonly fixedly connected to the same fixing ring, and a throttling hole is provided at the center of the fixing ring.

[0012] Preferably, the arc rod, rack and piston head are all limitedly slidably connected inside the pressure chamber, the throttle hole is fixedly connected to the middle section of the pressure chamber away from the arc rod, and the arc angle of the arc rod and the rack is set to one hundred and eighty degrees.

[0013] Preferably, both ends of the locking frame are fixedly connected with a rotating shaft, and the rotating shaft passes through and is connected to the arc frame for limiting rotation. A spline groove is opened inside the rotating shaft, and one end of the rotating shaft pointing to the outside of the arc frame half passes through and is slidably connected with an adjusting shaft. The end of the adjusting shaft located inside the rotating shaft is fixedly connected with a positioning ring, and the positioning ring is transmission-connected to the spline groove of the rotating shaft. A compression spring sleeved on the outer contour of the adjusting shaft is fixedly connected between the positioning ring and the inner wall of the spline groove of the rotating shaft. A ratchet is fixedly connected to the outer contour of the middle section of the adjusting shaft, and a ratchet ring is intermittently meshingly transmission-connected to the outer contour of the ratchet, and the ratchet ring is fixedly connected to the outer contour of both ends of the arc frame.

[0014] Preferably, the bottom end of the neck pillow is penetrated by and fixedly connected with a buffer shaft, both ends of the buffer shaft extend out of the neck pillow and are fixedly connected with a torsion spring, the other end of the torsion spring is fixedly connected with a fixing sleeve, both ends of the buffer shaft are penetrated by and rotatably connected with a connecting seat fixedly connected to the fixing sleeve, and the connecting seat is fixedly connected to the side of the upper surface of the arc frame away from the locking frame.

[0015] Preferably, the upper limit sliding connection of the outer contour of the guide rail is a limit block, one side of the limit block is penetrated by and threaded with an adjusting screw, and one end of the adjusting screw extending into the limit block abuts against the outer surface of the guide rail.

[0016] Preferably, one side of the fixed seat is penetrated and connected to a drive shaft for limited rotation, the end of the drive shaft pointing to the outside of the fixed seat is detachably connected to a reciprocating motor, the end of the drive shaft located inside the fixed seat is fixedly connected to a transmission wheel, the bottom end of the transmission wheel passes through the through groove on the upper surface of the neck ring and is meshingly connected to the rack for transmission, and the output mode of the reciprocating motor is set to automatic reverse cyclic rotation.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention fixes the child's head and limits the maximum angle of the child's head lowering by setting a locking mechanism and a buffer mechanism, and the angle can be freely adjusted. At the same time, resistance is provided to the child's lifting of the head to prevent the child from lifting the head too quickly and tearing the wound, thereby reducing the risk of secondary pain after surgery.

[0019] 2. The present invention provides a speed limiting mechanism, which cooperates with the locking mechanism to control the speed of the child's head turning left and right, thereby further reducing the risk of secondary pain after surgery.

[0020] 3. The present invention provides an adjustment mechanism that cooperates with the locking mechanism to control the amplitude of the child's head turning left and right, thereby preventing the wound from being torn due to excessive head turning, and the maximum amplitude can be freely adjusted to meet the needs of different children's body shapes and medical conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 It is a cross-sectional view of the main structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the strap of the present invention;

[0024] Figure 4 It is a schematic diagram of the speed limiting mechanism of the present invention;

[0025] Figure 5 Cross-sectional view of the locking mechanism of the present invention;

[0026] Figure 6 Internal schematic diagram of the locking mechanism of the present invention;

[0027] Figure 7 Schematic diagram of the buffer mechanism of the present invention;

[0028] Figure 8 Schematic diagram of the adjustment mechanism of the present invention;

[0029] Figure 9 Schematic diagram of the training mechanism of the present invention.

[0030] In the figure: 1. Shoulder strap; 11. Shoulder rest; 12. Neck ring; 13. Pressure chamber; 2. Limit ring; 21. Bracket; 22. Arc-shaped frame; 23. Arc-shaped rod; 24. Rack; 25. Piston head; 26. Arc-shaped spring; 27. Fixed ring; 28. Throttle hole; 3. Locking frame; 31. Rotating shaft; 32. Adjusting shaft; 33. Positioning ring; 34. Compression spring; 35. Ratchet; 36. Ratchet ring; 4. Neck pillow; 41. Buffer shaft; 42. Torsion spring; 43. Fixed sleeve; 44. Connecting seat; 5. Guide rail; 51. Limit block; 52. Adjusting screw rod; 6. Fixed seat; 61. Driving shaft; 62. Transmission wheel; 63. Reciprocating motor. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1:

[0033] Please refer to Figures 1 to 9 , the present invention provides a technical solution: an adjustable protection device for relieving secondary pain after children's tumor surgery, including a shoulder strap 1, a limiting component, an adjustment mechanism, and a training mechanism. The opposite surfaces at the top of the shoulder strap 1 are fixedly connected with shoulder rests 11, and a same neck ring 12 is fixedly connected between the shoulder rests 11. An annular pressure chamber 13 is opened inside the neck ring 12;

[0034] The limiting component includes a speed-limiting mechanism for controlling the turning speed of a child's head, a locking mechanism for controlling the lowering angle of a child's head, and a buffer mechanism for restricting the raising action of a child's head. The speed-limiting mechanism includes a limit ring 2 that is rotatably connected to the outer periphery of the neck ring 12 in a limited manner. The locking mechanism includes a locking frame 3 that is rotatably connected to the speed-limiting mechanism in a limited manner. The buffer mechanism includes a neck pillow 4 that is rotatably connected to the speed-limiting mechanism in a limited manner;

[0035] The adjusting mechanism includes a guide rail 5 fixedly connected to the upper surface of the neck ring 12;

[0036] The training mechanism includes a fixed seat 6 fixedly connected to one side of the upper surface of the neck ring 12.

[0037] The back strap 1 is set to be adjustable in tightness. The inside of the pressure chamber 13 is filled with hydraulic oil. A through groove is formed at a position corresponding to the fixed seat 6 on the upper surface of the neck ring 12, and the through groove communicates with the pressure chamber 13.

[0038] When using this device, a child fixes the back strap 1 on the back by wearing it, and improves its stability by adjusting the tightness of the back strap 1. At this time, the shoulder support 11 fits against the child's shoulders and the neck ring 12 is sleeved around the periphery of the child's neck. Thus, while realizing the overall support of the device, the back strap 1 is used to assist in correcting the child's back posture.

[0039] After the device is worn, the locking mechanism is adjusted to be unfolded and start working. At this time, the locking frame 3 is clamped to the outer edge of the child's mandible. Along with the unfolding of the locking frame 3, it lifts the child's head to its adapted angle. When the child makes an involuntary lowering head movement, the locking mechanism provides a counter resistance to its mandible, thereby preventing the postoperative wound from being torn due to the child lowering the head.

[0040] It should be noted that by adjusting the unfolding angle of the locking mechanism, the control of the limiting angle when the child lowers the head can be realized, so as to control the lowering head angle to further improve the protection effect of the device while meeting the needs of different children's body types and conditions.

[0041] In one embodiment, when the child needs to eat, the locking state of the locking mechanism is released. At this time, the locking mechanism can rotate freely without generating a counter resistance to the mandible, and the child's mouth can normally open and close to complete the eating process.

[0042] Furthermore, after the device is worn, the buffer mechanism supports the suboccipital region of the child's head, that is, the neck pillow 4 abuts against the outside of the occipital bone of the child's head. When the child makes an involuntary raising head movement, its head squeezes the buffer mechanism and deflects. The deflection of the buffer mechanism simultaneously generates a counter resistance to the child's raising head movement, thereby restricting its raising head speed to avoid tearing the wound. At the same time, on the premise that the locking mechanism restricts the child's lowering head movement, the raising head amplitude of the child is also restricted to avoid tearing the wound due to too large a raising head amplitude, further improving the protection effect of the device.

[0043] On the other hand, when a child makes a left - right head - turning motion, the locking mechanism and the speed - limiting mechanism are driven to rotate synchronously by the lower jaw. The rotation of the speed - limiting mechanism inside the pressure chamber 13 causes the hydraulic oil inside the pressure chamber 13 to flow. The flow of the hydraulic oil inside the pressure chamber 13 provides a counter - resistance to the left - right head - turning motion of the child, thereby restricting the head - turning speed. When the child turns the head quickly, the flow resistance of the hydraulic oil is large, and at this time, the limiting mechanism restricts the head - turning motion of the child; when the child turns the head slowly, the flow resistance of the hydraulic oil is small, and at this time, the limiting mechanism does not interfere with the child's head - turning motion, thus avoiding the wound tearing caused by rapid head - turning and further improving the protection effect of the device.

[0044] Meanwhile, the maximum amplitude of the child's left - right head - turning can be freely controlled through the adjusting mechanism. During the child's head - turning motion, the speed - limiting mechanism rotates synchronously. After it comes into contact with the adjusting mechanism, the speed - limiting mechanism cannot continue to rotate under the limiting action of the adjusting mechanism. Then, the speed - limiting mechanism and the locking mechanism cooperate to interfere with the child's head - turning motion to make it reach the maximum amplitude, so as to avoid wound tearing caused by too large a head - turning amplitude. Moreover, the turning amplitudes of the child to the left and to the right can be adjusted separately, further meeting the disease condition requirements of different children.

[0045] In one embodiment, rehabilitation training is required to accelerate the postoperative recovery process of the child. By stimulating the activity of the muscle tissue around the wound to help the patient recover the function of the surgical site, and at the same time, reducing the postoperative pain through scientific training. During this process, the training mechanism drives the speed - limiting mechanism and the locking mechanism to rotate synchronously, and the locking mechanism further drives the child's head to rotate to complete the rehabilitation training process.

[0046] Embodiment Two:

[0047] Please refer to Figures 4 - 6 , this embodiment further illustrates on the basis of Embodiment One: One side of the limiting ring 2 is fixedly connected with a bracket 21. The top of the bracket 21 is fixedly connected with an arc - shaped frame 22. The inner contour of the limiting ring 2 is fixedly connected with an arc - shaped rod 23. The upper surface of the arc - shaped rod 23 is fixedly connected with a rack 24. The two ends of the arc - shaped rod 23 are provided with piston heads 25. One end of each of the two piston heads 25 away from the arc - shaped rod 23 is fixedly connected with an arc - shaped spring 26. The other ends of the two arc - shaped springs 26 away from the piston heads 25 are commonly fixedly connected with the same fixing ring 27. A throttling hole 28 is opened at the center of the fixing ring 27.

[0048] The arc - shaped rod 23, the rack 24, and the piston heads 25 are all limited and slidably connected inside the pressure chamber 13. The throttling hole 28 is fixedly connected to the middle section on the side away from the arc - shaped rod 23 inside the pressure chamber 13. The arc angles of the arc - shaped rod 23 and the rack 24 are set to 180 degrees.

[0049] Both ends of the locking frame 3 are fixedly connected with a rotating shaft 31, and the rotating shaft 31 penetrates and is rotationally connected with the arc-shaped frame 22 in a limited way. A spline groove is formed inside the rotating shaft 31. One end of the rotating shaft 31 pointing to the outside of the arc-shaped frame 22 is semi-penetrated and slidably connected with an adjusting shaft 32. One end of the adjusting shaft 32 located inside the rotating shaft 31 is fixedly connected with a positioning ring 33, and the positioning ring 33 is drivingly connected to the spline groove of the rotating shaft 31. A compression spring 34 sleeved on the outer contour of the adjusting shaft 32 is fixedly connected between the inner wall of the spline groove of the positioning ring 33 and the rotating shaft 31. A ratchet 35 is fixedly connected to the outer contour of the middle section of the adjusting shaft 32. An intermittent meshing and driving connection is provided between the outer contour of the ratchet 35 and a ratchet ring 36, and the ratchet ring 36 is fixedly connected to the outer contours of both ends of the arc-shaped frame 22.

[0050] As can be seen from Embodiment 1, after the device is worn, it is necessary to unfold the locking mechanism to realize its clamping connection with the child's mandible. This process can be realized by rotating the adjusting shaft 32. When the adjusting shaft 32 rotates, the positioning ring 33 rotates synchronously with the adjusting shaft 32. Since the positioning ring 33 is drivingly connected to the spline groove in the rotating shaft 31, at this time, the adjusting shaft 32 drives the rotating shaft 31 and the locking frame 3 to rotate synchronously. The locking frame 3 starts to deflect along the axis of the adjusting shaft 32. At the same time, since the ratchet ring 36 is in a fixed state along with the speed-limiting mechanism, and the ratchet 35 and the ratchet ring 36 are in a one-way driving connection relationship, at this time, the ratchet 35 rotates synchronously with the adjusting shaft 32 inside the ratchet ring 36. Along with the deflection of the locking frame 3, when it comes into contact with the child's mandible, clamping is realized. After that, the continuous deflection of the locking frame 3 will drive the child's head to lift synchronously. When the child's head is lifted to an appropriate angle, stop rotating the adjusting shaft 32. At this time, the ratchet 35 stops rotating synchronously and is locked under the condition of always meshing with the ratchet ring 36. When the child has a tendency to lower the head, the head presses down the locking frame 3, and at this time, the ratchet 35 is in a fixed state and cannot rotate independently, that is, the angle of the locking frame 3 is limited, and the child cannot lower the head, so as to realize the limiting and protecting effect of the device.

[0051] Further, when the child needs to eat, the person pulls out the adjusting shaft 32 outwards. The adjusting shaft 32 drives the positioning ring 33 to slide in the spline groove of the rotating shaft 31 and compress the compression spring 34. The ratchet 35 is pulled out synchronously with the adjusting shaft 32 and the meshing and locking state between it and the ratchet ring 36 is released. At this time, the ratchet 35 can rotate freely. The locking frame 3 deflects and resets under the action of its own gravity. Then release the adjusting shaft 32, and the compression spring 34 rebounds to drive the adjusting shaft 32, the positioning ring 33 and the ratchet 35 to reset. The ratchet 35 meshes with the ratchet ring 36 again. At this time, the locking frame 3 releases the clamping and supporting of the child's mandible, and the child's mouth can freely open and close to complete the eating process. When it is necessary to complete the limitation of the child's lowering head action by the locking mechanism again, rotating the adjusting shaft 32 can realize it.

[0052] On the other hand, when the child turns his head left and right, the lower jaw drives the locking frame 3 to rotate left and right synchronously. The locking frame 3 further drives the arc-shaped frame 22, the support frame 21 and the limit ring 2 to move synchronously through the structural transmission of the locking mechanism. At this time, the limit ring 2 rotates on the outer periphery of the neck ring 12, while the neck ring 12 continues to be fixed together with the shoulder support 11 and the shoulder strap 1. At the same time, since the limit ring 2 is fixedly connected to the arc-shaped rod 23, that is, the rotation of the limit ring 2 on the outer periphery of the neck ring 12 drives the arc-shaped rod 23, the rack 24 and the piston head 25 to slide synchronously inside the pressure chamber 13, and the fixed ring 27 always remains fixed together with the neck ring 12.

[0053] That is, when the child turns his head left and right, the arc-shaped rod 23, the rack 24 and the piston head 25 deflect left and right synchronously inside the pressure chamber 13. At this time, the arc-shaped spring 26 at the corresponding position is compressed. At the same time, the hydraulic oil inside the pressure chamber 13 between the piston head 25 on the advancing side and the fixed ring 27 is squeezed by the piston head 25 at the corresponding position and flows, and flows through the throttle hole 28 on the fixed ring 27 to the inside of the pressure chamber 13 on the other side.

[0054] When the child turns his head quickly, the pressure of the piston head 25 on the hydraulic oil is relatively large, and the flow rate of the throttle hole 28 per unit time is fixed. That is, at this time, the flow resistance of the hydraulic oil near the throttle hole 28 is relatively large, so that the resistance against the piston head 25, the rack 24 and the arc-shaped rod 23 is relatively large, resulting in the arc-shaped frame 22 cooperating with the locking frame 3 to interfere with and limit the child's head-turning action; when the child turns his head slowly, the pressure of the piston head 25 on the hydraulic oil is relatively small. At this time, the hydraulic oil can flow through the throttle hole 28 smoothly, that is, the arc-shaped frame 22 and the locking frame 3 do not interfere with the child's head-turning action, so as to avoid wound tearing by restricting the child's head-turning speed and improve the protection effect of the device.

[0055] It should be noted that the maximum rotation angles of the neck joint to the left and to the right are both less than 90°. Therefore, by setting the arc angles of the arc-shaped rod 23 and the rack 24 to 180°, the whole-process cooperation of the speed-limiting mechanism during the child's head-turning action can be effectively ensured.

[0056] Embodiment Three:

[0057] Please refer to Figure 7 and Figure 8 , this embodiment further illustrates on the basis of Embodiment Two: The bottom end of the neck pillow 4 is penetrated and fixedly connected with a buffer shaft 41. Both ends of the buffer shaft 41 extend out of the neck pillow 4 and are fixedly connected with torsion springs 42. The other ends of the torsion springs 42 are fixedly connected with a fixed sleeve 43. Both ends of the buffer shaft 41 penetrate and are rotatably connected with a connection seat 44 fixedly connected with the fixed sleeve 43. The connection seat 44 is fixedly connected to one side of the upper surface of the arc-shaped frame 22 away from the locking frame 3.

[0058] The upper limit position of the outer contour of the guide rail 5 is slidably connected to a limit block 51 , and an adjusting screw 52 is penetrated and screwed on one side of the limit block 51 . One end of the adjusting screw 52 extending into the limit block 51 abuts against the outer surface of the guide rail 5 .

[0059] When a child raises his head unconsciously, the occipital bone of his head presses the neck pillow 4 to deflect along the axis of the buffer shaft 41, and the buffer shaft 41 rotates synchronously. At this time, the fixing sleeve 43 and the connecting seat 44 are in a fixed state along with the arc frame 22, that is, along with the rotation of the buffer shaft 41, the torsion spring 42 is twisted synchronously, and the greater the amplitude of the head raising, the greater the degree of twisting of the torsion spring 42, and the rebound tendency of the torsion spring 42 after twisting increases synchronously. This part of the rebound tendency provides resistance to the child's head raising action, thereby effectively reducing the child's head raising speed by gradually increasing the resistance during the child's head raising process.

[0060] At the same time, in the process of the locking frame 3 raising the child's head and restricting the child's head-lowering movement, since the maximum range of the up and down rotation of the neck joint is fixed, the higher the initial position of the head, the smaller the range of the head-raising movement. Therefore, the amplitude and speed of the child's head-raising movement are limited through the dual cooperation of the locking mechanism and the buffer mechanism, thereby further improving the protective effect of the device.

[0061] On the other hand, it can be seen from Example 2 that the speed limiting mechanism realizes speed control of the child's head turning left and right, and the adjustment mechanism further cooperates with the speed limiting mechanism to realize the limitation of the amplitude of the child's head turning left and right. When it is necessary to limit the amplitude of the child's head turning left and right, the personnel rotates the adjusting screw 52 to make it extend outward from the inside of the limit block 51. At this time, the adjusting screw 52 releases the abutting and clamping state on the guide rail 5, and the limit block 51 can slide freely along the outer contour of the guide rail 5; further, the personnel moves the adjustment limit block 51 to a position on the guide rail 5, and after reaching a suitable position, the personnel rotates the adjusting screw 52 to make it screw into the inside of the limit block 51. At this time, the adjusting screw 52 is abutted and clamped with the guide rail 5 again, and the position of the limit block 51 is fixed.

[0062] As the child turns his head left and right, the bracket 21 in the speed limiting mechanism deflects left and right synchronously. When it contacts the limit block 51 in a fixed state, it is restricted by the limit block 51 and cannot continue to rotate, which in turn causes the arc frame 22 and the locking frame 3 to also be unable to continue to rotate. The locking frame 3 further restricts the child's head to reach the maximum rotation range, thereby realizing the maximum control of the child's left and right head turning movement by the adjustment mechanism.

[0063] It should be noted that there are two groups of limit blocks 51 and adjusting screw rods 52 in the adjustment mechanism and they are respectively located on the left and right sides of the outer contour of the guide rail 5. The limit block 51 and adjusting screw rod 52 on the left side control the maximum range of the child's head turning to the left, and the limit block 51 and adjusting screw rod 52 on the right side control the maximum range of the child's head turning to the right. The left and right head turning actions are controlled separately to meet the medical conditions and body shape requirements of different children.

[0064] Embodiment 4:

[0065] See also Figure 9 This embodiment is further described on the basis of the third embodiment: one side of the fixed seat 6 is penetrated and connected with a driving shaft 61 for limited rotation, the end of the driving shaft 61 pointing to the outside of the fixed seat 6 is detachably connected to a reciprocating motor 63 for transmission, the end of the driving shaft 61 located inside the fixed seat 6 is fixedly connected to a transmission wheel 62, the bottom end of the transmission wheel 62 passes through the through groove on the upper surface of the neck ring 12 and is meshed with the rack 24 for transmission connection, and the output mode of the reciprocating motor 63 is set to automatic reverse cyclic rotation.

[0066] It can be seen from Example 1 that when rehabilitation training is needed, the training mechanism starts working, at which time the reciprocating motor 63 is started and the transmission wheel 62 is driven to rotate synchronously through the drive shaft 61, and the transmission wheel 62 further drives the rack 24, the arc rod 23 and the piston head 25 to deflect inside the pressure chamber 13. Under the transmission action of the structural connection, the limit ring 2 drives the bracket 21, the arc frame 22 and the locking frame 3 to rotate synchronously, and the locking frame 3 further realizes the left and right rotation of the child's head to complete the rehabilitation training operation.

[0067] Furthermore, since the output mode of the reciprocating motor 63 is set to automatically reverse the circular rotation, that is, when the arc frame 22 deflects to one side and is restricted by the corresponding position limit block 51, the reciprocating motor 63 automatically reverses and drives the arc frame 22 to deflect in the opposite direction, thereby realizing the reciprocating training of the child's head turning left and right, and the speed of the head turning action during the training process is controlled by the rotation speed of the reciprocating motor 63 and the speed limiting mechanism, and the amplitude of the head turning action is controlled by the adjusting mechanism, thereby realizing scientific training to relieve postoperative pain and restore the function of the surgical site.

[0068] It should be noted that due to the detachable transmission connection between the reciprocating motor 63 and the drive shaft 61, when rehabilitation training is not performed, the reciprocating motor 63 is disassembled and removed, and the reciprocating motor 63 is installed when rehabilitation training is required, so as to avoid accidental start-up and interference with the normal protection effect of the device. When the reciprocating motor 63 is removed, the transmission wheel 62 and the drive shaft 61 can rotate freely. When the child's left and right head turning action drives the arc rod 23 and the rack 24 to deflect, the drive shaft 61 and the transmission wheel 62 do not interfere with the movement of the rack 24 and the arc rod 23.

[0069] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable protective device for alleviating secondary pain after childhood tumor surgery, comprising a strap (1), a limiting component, an adjustment mechanism and a training mechanism, characterized in that: The shoulder rests (11) are fixedly connected to the opposite surfaces of the top of the shoulder strap (1), and the shoulder rests (11) are fixedly connected to a neck ring (12) together, and an annular pressure chamber (13) is provided inside the neck ring (12); The limiting assembly comprises a speed limiting mechanism for controlling the speed of the child's head turning, a locking mechanism for controlling the angle of the child's head lowering, and a buffer mechanism for limiting the child's head raising action, the speed limiting mechanism comprising a limiting ring (2) which is limitedly rotatably connected to the outer periphery of the neck ring (12), the locking mechanism comprising a locking frame (3) which is limitedly rotatably connected to the speed limiting mechanism, and the buffer mechanism comprising a neck pillow (4) which is limitedly rotatably connected to the speed limiting mechanism; The adjustment mechanism comprises a guide rail (5) fixedly connected to the upper surface of the neck ring (12); The training mechanism comprises a fixing seat (6) fixedly connected to one side of the upper surface of the neck ring (12).

2. The adjustable protective device for alleviating secondary pain after childhood tumor surgery according to claim 1, characterized in that: The shoulder strap (1) is configured to be adjustable in tightness, the interior of the pressure chamber (13) is filled with hydraulic oil, a through groove is provided at a position corresponding to the fixing seat (6) on the upper surface of the neck ring (12), and the through groove is connected to the pressure chamber (13).

3. The adjustable protective device for alleviating secondary pain after childhood tumor surgery according to claim 1, characterized in that: A bracket (21) is fixedly connected to one side of the limiting ring (2), an arc frame (22) is fixedly connected to the top of the bracket (21), an arc rod (23) is fixedly connected to the inner contour of the limiting ring (2), a rack (24) is fixedly connected to the upper surface of the arc rod (23), piston heads (25) are arranged at both ends of the arc rod (23), the ends of the two piston heads (25) away from the arc rod (23) are fixedly connected to arc springs (26), the ends of the two arc springs (26) away from the piston heads (25) are fixedly connected to the same fixing ring (27), and a throttle hole (28) is provided at the center of the fixing ring (27).

4. The adjustable protective device for alleviating secondary pain after childhood tumor surgery according to claim 3, characterized in that: The arc rod (23), the rack (24) and the piston head (25) are all connected to the inside of the pressure chamber (13) in a limited sliding manner, and the throttle hole (28) is fixedly connected to the middle section of the pressure chamber (13) away from the arc rod (23). The arc angle of the arc rod (23) and the rack (24) is set to 180 degrees.

5. The adjustable protective device for alleviating secondary pain after childhood tumor surgery according to claim 1, characterized in that: The two ends of the locking frame (3) are fixedly connected with a rotating shaft (31), and the rotating shaft (31) passes through and is connected to the arc frame (22) for limited rotation. A spline groove is provided inside the rotating shaft (31), and one end of the rotating shaft (31) pointing to the outside of the arc frame (22) half passes through and is slidably connected with an adjusting shaft (32). One end of the adjusting shaft (32) located inside the rotating shaft (31) is fixedly connected with a positioning ring (33), and the positioning ring (33) is transmission-connected to the spline groove of the rotating shaft (31). A compression spring (34) sleeved on the outer contour of the adjusting shaft (32) is fixedly connected between the positioning ring (33) and the inner wall of the spline groove of the rotating shaft (31). A ratchet (35) is fixedly connected to the outer contour of the middle section of the adjusting shaft (32), and a ratchet ring (36) is intermittently meshed and transmission-connected on the outer contour of the ratchet (35). The ratchet ring (36) is fixedly connected to the outer contours of the two ends of the arc frame (22).

6. The adjustable protective device for alleviating secondary pain after childhood tumor surgery according to claim 1, characterized in that: The bottom end of the neck pillow (4) is penetrated by and fixedly connected with a buffer shaft (41), the two ends of the buffer shaft (41) extend out of the neck pillow (4) and are fixedly connected with a torsion spring (42), the other end of the torsion spring (42) is fixedly connected with a fixing sleeve (43), the two ends of the buffer shaft (41) are penetrated by and rotatably connected with a connecting seat (44) fixedly connected to the fixing sleeve (43), and the connecting seat (44) is fixedly connected to the upper surface of the arc frame (22) away from the locking frame (3).

7. The adjustable protective device for alleviating secondary pain after childhood tumor surgery according to claim 1, characterized in that: The upper limit position of the outer contour of the guide rail (5) is slidably connected to a limit block (51); one side of the limit block (51) is penetrated by and screwed with an adjusting screw rod (52); one end of the adjusting screw rod (52) extending into the interior of the limit block (51) abuts against the outer surface of the guide rail (5).

8. The adjustable protective device for alleviating secondary pain after childhood tumor surgery according to claim 1, characterized in that: A drive shaft (61) is penetrated through one side of the fixed seat (6) and is connected to the fixed seat (6) in a limited rotation manner. The end of the drive shaft (61) pointing to the outside of the fixed seat (6) is detachably connected to a reciprocating motor (63). The end of the drive shaft (61) located inside the fixed seat (6) is fixedly connected to a transmission wheel (62). The bottom end of the transmission wheel (62) passes through a through groove on the upper surface of the neck ring (12) and is meshed with a rack (24) for transmission connection. The output mode of the reciprocating motor (63) is set to automatically reverse cyclic rotation.

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