Head basin ring device

Abstract

The utility model discloses a head-basin ring device which comprises a head ring, a basin ring and a supporting assembly, a plurality of mounting holes are formed in the head ring and the basin ring, a pelvis penetrating needle is further arranged on the basin ring, the head-basin ring device is characterized in that the supporting assembly comprises a plurality of supporting rods, the upper ends of the supporting rods are detachably connected with a head basin, and the lower ends of the supporting rods are detachably connected with the basin ring; the supporting rod is composed of an upper rod and a lower rod, an adjusting piece is movably arranged between the upper rod and the lower rod, and the adjusting piece can enable the lower rod to be close to or away from the upper rod. According to the head-basin ring device, the lower rod can be close to or far away from the upper rod through the movably arranged adjusting piece, so that the supporting rod is telescopically adjusted, the adjusting process is simple and convenient, the supporting rod cannot extend outwards, the situation that the extending supporting rod limits the movement range of a patient is avoided, and inconvenience is caused to the patient and other people is avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a head-pelvic ring device. Background Technology

[0002] The cephalopelvic ring is an important medical device for treating scoliosis. It consists of a head ring for stabilizing the skull, a pelvic ring for stabilizing the pelvis, and a support assembly connecting the head ring and the pelvic ring. In use, the head ring is fixed to the patient's head, the pelvic ring is fixed to the patient's pelvis, and the support assembly connects the head ring and pelvic ring components. Adjusting the length of the support assembly achieves the purpose of stretching the spine. The support assembly consists of multiple support rods and adjusting nuts. The upper and lower parts of the support rods have external threads that screw into the corresponding head ring and pelvic ring, and are then fixed by adjusting the nuts. This adjustment process of the cephalopelvic ring is complex and cumbersome. It is difficult to make the same adjustment distance with multiple support rods, which can cause discomfort to the patient. Moreover, after gradual adjustment, the upper and lower ends of the support rods extend too far, thus restricting the patient's range of motion and causing inconvenience to the patient and others. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a seed head pot ring device that is easy to adjust and whose support rod does not extend outward.

[0004] Therefore, this utility model is implemented using the following technical solution:

[0005] A cephalopelvic ring device includes a head ring, a pelvic ring, and a support assembly. Both the head ring and the pelvic ring are provided with a plurality of mounting holes. The pelvic ring is also provided with a pelvic needle. The support assembly includes multiple support rods. The upper end of each support rod is detachably connected to the cephalopelvic ring, and the lower end is detachably connected to the pelvic ring. Each support rod consists of an upper rod and a lower rod. An adjusting member is movably provided between the upper rod and the lower rod, and the adjusting member can move the lower rod closer to or further away from the upper rod.

[0006] Furthermore, the adjusting component is a sleeve, the lower end of the upper rod is rotatably connected to the sleeve, and the upper part of the lower rod is threadedly connected to the sleeve. Rotating the sleeve can make the lower rod move closer to or further away from the upper rod.

[0007] Furthermore, a bearing is provided between the upper rod and the sleeve, the lower outer wall of the upper rod is fixed to the inner ring of the bearing, and the upper inner wall of the sleeve is fixed to the outer ring of the bearing.

[0008] Furthermore, the sleeve is provided with a locking component to restrict its rotation, the lower rod is provided with a vertical opening groove, the locking component includes a locking block that can be inserted into the vertical opening groove, and the sleeve is provided with a through hole to allow the locking block to move.

[0009] Furthermore, the sleeve is welded with a shell covering the lock block. Inside the shell, there is a worm and a worm wheel that mesh with each other. The lock block is an L-shaped lock block. The short side of the L-shaped lock block can be inserted into a vertical opening slot, and the long side has a rack that meshes with the worm wheel. The outer end of the worm is provided with a polygonal protrusion, and the worm is equipped with a key. The lower end of the key is provided with a polygonal groove for inserting the polygonal protrusion. The shell is provided with an opening for aligning the polygonal protrusion, and a flip cover is hinged to the shell at the opening.

[0010] Furthermore, the housing is provided with a base for the worm gear to be inserted and rotated, and a slide is also provided inside the housing. The long side of the L-shaped locking block is provided with a slide bar that can slide inside the slide. The worm gear is located inside the housing via a rotating shaft.

[0011] Furthermore, the sleeve is welded with a shell covering the lock block, and the other end of the shell is detachably provided with a cover. Inside the shell, there is a movable drive block that abuts against the lock block. The outer end of the drive block is provided with a polygonal protrusion, and the drive block is equipped with a key. The lower end of the key is provided with a polygonal groove for inserting the polygonal protrusion. The cover is provided with an opening for the polygonal protrusion, and the cover is hinged with a flip cover at the opening.

[0012] Furthermore, the cover is detachably connected to the outer shell by multiple bolts, and the inner end of the cover is provided with an internal threaded sleeve. The drive block is screwed to the internal threaded sleeve, and the drive block and the locking block are provided with opposing annular grooves. Several balls are provided in the annular grooves. The locking block is provided with multiple limiting blocks, and a spring is provided between the limiting blocks and the outer shell to cause the locking block to move outward.

[0013] Furthermore, the support rod is detachably connected via multiple nuts and corresponding head rings and basin rings.

[0014] After adopting the above technical solution, the lower rod can be moved closer to or further away from the upper rod by the adjustable component, thereby extending and retracting the support rod. The adjustment process is simple and convenient. Moreover, the adjustment distance is calculated by the number of rotations of the adjustable component. Multiple support rods only need to be rotated the same number of times to make the same adjustment distance, avoiding discomfort to the patient. In addition, this structure in which the upper and lower rods are adjusted by the adjustable component prevents the support rod from extending outward, avoiding the extension of the support rod from restricting the patient's range of motion and avoiding inconvenience to the patient and others. Attached Figure Description

[0015] The present invention includes the following figures:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the locking component in the first embodiment of the present invention (without a key inserted);

[0018] Figure 3 This is a schematic diagram of the internal structure of the second embodiment (insertion of key) of the locking component in this utility model.

[0019] Reference numerals: 1. Head ring; 2. Pelvic ring; 3. Support assembly; 4. Mounting hole; 5. Pelvic pin; 6. Support rod; 7. Upper rod; 8. Lower rod; 9. Adjusting component; 10. Sleeve; 11. Vertical opening slot; 12. Locking block; 13. Through hole; 14. Outer shell; 15. Worm gear; 16. Worm wheel; 17. Rack; 18. Polygonal protrusion; 19. Key; 20. Polygonal groove; 21. Opening; 22. Flip cover; 23. Base; 24. Slide; 25. Slide bar; 26. Rotating shaft; 27. Drive block; 28. Cover; 29. ​​Internal threaded sleeve; 30. Annular groove; 31. Ball bearing; 32. Limiting block; 33. Spring; 34. Nut; 35. Bolt. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Referring to the above figures, the cephalopelvic ring device provided by this utility model includes a head ring 1, a pelvic ring 2, and a support assembly 3. Both the head ring 1 and the pelvic ring 2 are provided with several mounting holes 4. The pelvic ring 2 is also provided with a pelvic needle 5. The support assembly 3 includes multiple support rods 6. The upper end of each support rod 6 is detachably connected to the cephalopelvic ring, and the lower end is detachably connected to the pelvic ring 2. Each support rod 6 consists of an upper rod 7 and a lower rod 8. An adjusting member 9 is movably provided between the upper rod 7 and the lower rod 8. The adjusting member 9 allows the lower rod 8 to move closer to or further away from the upper rod 7. The adjusting member 9 is a sleeve 10, and the lower end of the upper rod 7 is rotatably connected to the sleeve 10. The lower rod 8 is connected to the sleeve 10 by a thread. Rotating the sleeve 10 can move the lower rod 8 closer to or away from the upper rod 7. A bearing is provided between the upper rod 7 and the sleeve 10. The lower outer wall of the upper rod 7 is fixed to the inner ring of the bearing. The upper inner wall of the sleeve 10 is fixed to the outer ring of the bearing. The sleeve 10 is provided with a locking assembly to restrict its rotation. The lower rod 8 is provided with a vertical opening groove 11. The locking assembly includes a locking block 12 that can be inserted into the vertical opening groove 11. The sleeve 10 is provided with a through hole 13 to accommodate the movement of the locking block 12. The support rod 6 is detachably connected to the corresponding head ring 1 and basin ring 2 by multiple nuts 34.

[0022] In this embodiment, rotating the sleeve 10 allows the lower rod 8 to move closer to or further away from the upper rod 7, thereby extending and retracting the support rod 6. The adjustment process is simple and convenient. Moreover, the adjustment distance is calculated by the number of rotations of the adjusting member 9. Multiple support rods 6 only need to be rotated the same number of times to achieve the same adjustment distance, avoiding discomfort to the patient. In addition, this structure, where the upper rod 7 and lower rod 8 are adjusted by the adjusting member 9, prevents the support rod 6 from extending outward, thus avoiding restricting the patient's range of motion and causing inconvenience to the patient and others. The locking component can restrict the rotation of the sleeve 10, effectively preventing anyone other than medical personnel from rotating the sleeve 10 to adjust the support rod 6, improving the safety of the cephalopelvic ring 2 device and ensuring the patient's recovery process.

[0023] Reference Figure 2 The above is a schematic diagram of the internal structure of the locking component in the first embodiment of this utility model (without key 19 inserted). A shell 14 covering the locking block 12 is welded onto the sleeve 10. Inside the shell 14 are a worm gear 15 and a worm wheel 16 that mesh with each other. The locking block 12 is an L-shaped locking block 12. The short side of the L-shaped locking block 12 can be inserted into a vertical opening slot 11, and the long side has a rack 17 that meshes with the worm wheel 16. The outer end of the worm gear 15 is provided with a polygonal protrusion 18, and the worm gear 15 is equipped with... The key 19 has a polygonal groove 20 at its lower end for inserting a polygonal protrusion 18. The outer shell 14 has an opening 21 for aligning with the polygonal protrusion 18, and a flip cover 22 is hinged to the opening 21. The outer shell 14 has a base 23 for inserting a worm gear 15, and a slide 24 is also provided inside the outer shell 14. The long side of the L-shaped lock block 12 has a slide bar 25 that can slide inside the slide 24. The worm gear 16 is located inside the outer shell 14 via a rotating shaft 26.

[0024] In this embodiment, under normal use, the short side of the L-shaped locking block 12 is inserted into the vertical opening slot 11, at which time the sleeve 10 cannot rotate. When it is necessary to adjust the length of the support rod 6, the medical staff equipped with the key 19 first open the flip cover 22, then insert the key 19 into the outer shell 14, and insert the polygonal protrusion 18 into the polygonal groove 20. Then, turn the key 19 to drive the worm gear 15 to rotate, the worm gear 15 drives the worm wheel 16 to rotate, and the worm wheel 16 drives the rack 17 to move on the slide 24, so that the L-shaped locking block 12... When the short side of L-shaped locking block 12 disengages from the vertical opening slot 11, the sleeve 10 can be rotated for adjustment. This effectively prevents anyone other than medical personnel from rotating the sleeve 10 to adjust the support rod 6, thus enhancing safety. After the sleeve 10 has rotated several integer turns, the short side of L-shaped locking block 12 remains aligned with the vertical opening slot 11. Then, by rotating the key 19, the short side of L-shaped locking block 12 can be inserted into the vertical opening slot 11 to complete the locking. The outer casing 14 is positioned on the sleeve 10 to identify whether the short side of L-shaped locking block 12 is aligned with the vertical opening slot 11.

[0025] Reference Figure 3The diagram shows the internal structure of the second embodiment of the locking component (insertion of key 19) of this utility model. A shell 14 covering the locking block 12 is welded onto the sleeve 10. A cap 28 is detachably provided at the other end of the shell 14. A driving block 27, which abuts against the locking block 12, is movably disposed inside the shell 14. A polygonal protrusion 18 is provided at the outer end of the driving block 27, and the driving block 27 is equipped with a key 19. A polygonal groove 20 is provided at the lower end of the key 19 to allow the polygonal protrusion 18 to be inserted. The cap 28 is provided with a polygonal protrusion. The cover 28 has an opening 21 and a hinged flap 22 at the opening 21. The cover 28 is detachably connected to the outer shell 14 by multiple bolts 35. The inner end of the cover 28 is provided with an internal threaded sleeve 29. The drive block 27 is screwed to the internal threaded sleeve 29. The drive block 27 and the locking block 12 are provided with opposing annular grooves 30. Several balls 31 are provided in the annular grooves 30. The locking block 12 is provided with multiple limiting blocks 32. A spring 33 is provided between the limiting blocks 32 and the outer shell 14 to make the locking block 12 move outward.

[0026] In this embodiment, under normal use, the locking block 12 is inserted into the vertical opening slot 11, at which time the sleeve 10 cannot rotate. When it is necessary to adjust the length of the support rod 6, the medical staff equipped with the key 19 first open the flip cover 22, then insert the key 19 into the outer shell 14, and insert the polygonal protrusion 18 into the polygonal groove 20. Then, turn the key 19 to drive the drive block 27 to rotate. The drive block 27 moves outward, and the locking block 12 also moves outward under the force of the spring 33 until it is disengaged from the vertical opening slot 11. Then the sleeve 10 can be rotated for adjustment. This effectively prevents people other than medical staff from rotating the sleeve 10 to adjust the support rod 6, which is safer. After the sleeve 10 is rotated several integer turns, the locking block 12 is still aligned with the vertical opening slot 11. Then, turn the key 19 to insert the locking block 12 into the vertical opening slot 11 to complete the locking. The position of the outer shell 14 on the sleeve 10 is used to identify whether the locking block 12 is aligned with the vertical opening slot 11.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A head and pelvis ring device, comprising a head ring, a pelvis ring and a support assembly, the head ring and the pelvis ring are each provided with a plurality of mounting holes, the pelvis ring is further provided with a pelvis needle, characterized in that: The support assembly includes multiple support rods. The upper end of each support rod is detachably connected to the head basin, and the lower end is detachably connected to the basin ring. Each support rod consists of an upper rod and a lower rod. An adjusting member is movably provided between the upper rod and the lower rod, which can make the lower rod move closer to or further away from the upper rod.

2. A head and pelvis ring assembly as defined in claim 1 wherein: The adjusting component is a sleeve. The lower end of the upper rod is rotatably connected to the sleeve, and the upper part of the lower rod is threadedly connected to the sleeve. Rotating the sleeve can make the lower rod move closer to or further away from the upper rod.

3. A head and pelvis ring assembly according to claim 2, wherein: A bearing is provided between the upper rod and the sleeve. The lower outer wall of the upper rod is fixed to the inner ring of the bearing, and the upper inner wall of the sleeve is fixed to the outer ring of the bearing.

4. A head and pelvis ring assembly according to claim 2 or 3, wherein: The sleeve is provided with a locking component to restrict its rotation, the lower rod is provided with a vertical opening groove, the locking component includes a locking block that can be inserted into the vertical opening groove, and the sleeve is provided with a through hole to allow the locking block to move.

5. A head and pelvis ring assembly as defined in claim 4 wherein: The sleeve is welded with a shell covering the lock block. Inside the shell are a worm and a worm wheel that mesh with each other. The lock block is an L-shaped lock block. The short side of the L-shaped lock block can be inserted into a vertical opening slot, and the long side has a rack that meshes with the worm wheel. The outer end of the worm is provided with a polygonal protrusion, and the worm is equipped with a key. The lower end of the key is provided with a polygonal groove for inserting the polygonal protrusion. The shell is provided with an opening for aligning the polygonal protrusion, and a flip cover is hinged to the shell at the opening.

6. A head and pelvis ring assembly as defined in claim 5 wherein: The housing is provided with a base for the worm gear to be inserted and rotated, and a slide is also provided inside the housing. The long side of the L-shaped locking block is provided with a slide bar that can slide inside the slide. The worm gear is located inside the housing via a rotating shaft.

7. A head and pelvis ring assembly as defined in claim 4 wherein: The sleeve is welded with a shell that covers the lock block. The other end of the shell is detachably provided with a cover. Inside the shell, there is a movable drive block that abuts against the lock block. The outer end of the drive block is provided with a polygonal protrusion and the drive block is equipped with a key. The lower end of the key is provided with a polygonal groove for inserting the polygonal protrusion. The cover is provided with an opening for the polygonal protrusion and a flip cover is hinged to the cover at the opening.

8. A head and pelvis ring assembly according to claim 7, wherein: The cover is detachably connected to the outer shell by multiple bolts, and the inner end of the cover is provided with an internal threaded sleeve. The drive block is screwed to the internal threaded sleeve, and the drive block and the locking block are provided with opposing annular grooves. Several balls are provided in the annular grooves. The locking block is provided with multiple limiting blocks, and a spring is provided between the limiting blocks and the outer shell to make the locking block move outward.

9. A head and pelvis ring assembly as in claim 1, wherein: The support rod is detachably connected by multiple nuts and corresponding head rings and basin rings.

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