Movable spine positioning plate

Abstract

The utility model discloses a movable spine positioning plate which comprises a frame, a plurality of pairs of first adjusting seats are installed on the front side and the rear side of the frame, a longitudinal positioning strip is installed between the pair of first adjusting seats, a plurality of pairs of second adjusting seats are installed on the left side and the right side of the frame, and a transverse positioning strip is installed between the pair of second adjusting seats. The longitudinal positioning strips and the transverse positioning strips are arranged in a staggered mode, and the position of the first adjusting seat can be adjusted in the length direction of the frame. The first adjusting seat and the second adjusting seat are installed on the frame in a sliding mode, and the positions of the longitudinal positioning strips and the transverse positioning strips can be adjusted at will in the frame; in addition, the longitudinal positioning strip and the first adjusting seat as well as the transverse positioning strip and the second adjusting seat are disassembled and assembled through the clamping assemblies, the positions and the number of the positioning strips can be adjusted according to needs, the influence of the positioning strips on rear spine structure display is reduced, and therefore accurate positioning is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of spinal positioners, in particular to a movable spinal positioner. Background Art

[0002] In recent years, minimally invasive spinal surgery, such as percutaneous vertebroplasty, has rapidly developed, and the number of patients requiring scoliosis correction surgery has increased significantly. Positioning for minimally invasive spinal surgery relies entirely on C-arm or O-arm X-ray machines and personal experience. This makes puncture point location difficult, necessitating repeated fluoroscopy. This not only impacts the surgical process, but also exposes medical staff and patients to multiple X-rays and increases their workload. Due to the abnormal spinal curvature, scoliosis patients must rely on imaging to confirm the pin placement point, angle, and depth for a successful and correct surgical procedure. Therefore, accurate preoperative and intraoperative positioning is crucial.

[0003] The traditional spinal grid-like vertebral positioning and developing device structure is a frame with multiple horizontal and vertical staggered positioning bars, which are fixedly connected to the frame. Since the internal positioning bars cannot move, but must be accurate, this structure adopts a relatively dense arrangement. However, this can easily cause the posterior spinal structure to be unclear during intraoperative radiography, and the positioning bars block the spinal structure, resulting in inaccurate positioning. Therefore, it is necessary to design a movable spinal positioning plate to improve the above problems. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model

[0005] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a movable spinal positioning plate, which aims to solve the problem that the existing positioning strips are arranged relatively densely, which easily blocks the spinal structure, resulting in unclear display of the posterior spinal structure and inaccurate positioning during filming.

[0006] 2. Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A movable spinal positioning plate comprises a frame, wherein multiple pairs of first adjustment seats are installed on the front and rear sides of the frame, a longitudinal positioning strip is installed between a pair of the first adjustment seats, multiple pairs of second adjustment seats are installed on the left and right sides of the frame, a transverse positioning strip is installed between a pair of the second adjustment seats, the longitudinal positioning strips and the transverse positioning strips are staggered, the first adjustment seat can adjust the position along the length direction of the frame, and the second adjustment seat can adjust the position along the width direction of the frame, a pair of first adjustment seats and a pair of second adjustment seats are provided with a snap-in groove on the opposite sides, the end of the longitudinal positioning strip is snapped into the snap-in groove of the first adjustment seat and can be detachably installed through a snap-in assembly, and the end of the transverse positioning strip is snapped into the snap-in groove of the second adjustment seat and can be detachably installed through a snap-in assembly.

[0009] Preferably, the bottom of the first adjustment seat and the second adjustment seat are both provided with mounting grooves, and the first adjustment seat and the second adjustment seat are connected to the frame through the mounting grooves. Balls are rolled on the inner walls on both sides of the mounting grooves, and a circle of limiting grooves are provided on the inner and outer walls of the frame, and the balls are placed in the limiting grooves.

[0010] Preferably, both the first adjustment seat and the second adjustment seat are connected with positioning members, and the positioning members are used to lock the positions of the first adjustment seat and the second adjustment seat on the frame.

[0011] Preferably, the positioning member includes a threaded rod rotatably connected to the first adjustment seat and the second adjustment seat, the top end of the threaded rod extends to the outside of the first adjustment seat and the second adjustment seat and is fixedly connected to a knob, the bottom end of the threaded rod extends into the mounting groove and is fixedly connected to a pressure block, and the top end of the mounting groove is provided with a groove for accommodating the pressure block.

[0012] Preferably, an anti-slip pad is fixedly bonded to the bottom of the pressing block.

[0013] Preferably, the clamping assembly includes a pair of L-shaped blocks, and an accommodating groove is provided on the first adjustment seat and the second adjustment seat at the outside of the snap-in groove. The accommodating groove is a U-shaped structure. A pair of the L-shaped blocks are respectively placed on the upper and lower sides of the accommodating groove. A spring is fixedly connected between the side of the L-shaped block away from the snap-in groove and the inner wall of the accommodating groove. The top and bottom of both ends of the longitudinal positioning bar and the transverse positioning bar are provided with clamping grooves, and through holes are provided between the upper and lower parts of the accommodating groove and the snap-in groove. One end of the L-shaped block passes through the through hole and is snapped into the clamping groove. An expansion piece is provided between the pair of L-shaped blocks.

[0014] Preferably, the expansion member includes a hinged rod rotatably connected to the L-shaped block, and the adjacent ends of the two hinged rods are rotatably connected to the same connecting seat, and the hinged rod and the connecting seat are both placed in the accommodating groove.

[0015] Preferably, the expansion piece further comprises a pressing block fixedly connected to the connecting seat, and one end of the pressing block passes through the first adjustment seat and the second adjustment seat and extends to the outside.

[0016] Preferably, both ends of the longitudinal positioning bar and the transverse positioning bar are provided with slidingly cooperating inclined surfaces between the L-shaped blocks.

[0017] Preferably, scale marks are provided around the top of the frame, and through slots communicating with the mounting slots are provided on the first adjustment seat and the second adjustment seat, and the through slots correspond to the positions of the scale marks.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] (1) The utility model is slidably mounted on the frame through the first adjustment seat and the second adjustment seat, and the positions of the longitudinal positioning strip and the transverse positioning strip can be adjusted arbitrarily inside the frame. The longitudinal positioning strip and the first adjustment seat, as well as the transverse positioning strip and the second adjustment seat, are assembled and disassembled by means of a snap-fit assembly. The position and number of the positioning strips can be adjusted as needed, thereby reducing the influence of the positioning strips on the display of the posterior spinal structure, thereby achieving precise positioning.

[0021] (2) The utility model provides positioning members on the first adjustment seat and the second adjustment seat. After the first adjustment seat and the second adjustment seat are moved to appropriate positions, the first adjustment seat and the second adjustment seat can be locked by the positioning members to avoid position displacement of the longitudinal positioning strip and the transverse positioning strip during use. The through groove is used in conjunction with the scale mark to indicate the adjustment position of the first adjustment seat and the second adjustment seat, thereby accurately adjusting the position of the longitudinal positioning strip and the transverse positioning strip, thereby improving the accuracy of position adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the dynamic spine positioning board;

[0023] Figure 2 Schematic diagram of the three-dimensional structure of the first adjustment seat;

[0024] Figure 3 Partial cross-sectional structure of the first adjustment seat Figure 1 ;

[0025] Figure 4 Partial cross-sectional structure of the first adjustment seat Figure 2 ;

[0026] Figure 5 Schematic diagram of the longitudinal positioning bar structure.

[0027] In the figure: 1. frame; 11. limiting groove; 2. first adjusting seat; 21. mounting groove; 22. ball bearing; 23. snap-in groove; 24. accommodating groove; 241. through hole; 25. snap-in assembly; 251. L-shaped block; 252. spring; 253. connecting seat; 254. hinged rod; 255. pressing block; 26. positioning piece; 261. threaded rod; 262. knob; 263. pressing block; 27. groove; 28. through groove; 3. longitudinal positioning strip; 31. snap-in groove; 32. inclined surface; 4. second adjusting seat; 5. transverse positioning strip. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Example:

[0030] See also Figure 1-Figure 5 , this embodiment provides a movable spinal positioning board, including a frame 1, a plurality of pairs of first adjustment seats 2 are installed on the front and rear sides of the frame 1, a longitudinal positioning strip 3 is installed between a pair of first adjustment seats 2, a plurality of pairs of second adjustment seats 4 are installed on the left and right sides of the frame 1, a transverse positioning strip 5 is installed between a pair of second adjustment seats 4, the longitudinal positioning strip 3 and the transverse positioning strip 5 are staggered, the first adjustment seat 2 can be adjusted along the length direction of the frame 1, and the second adjustment seat 4 can be adjusted along the width direction of the frame 1. A snap-in groove 23 is provided on the opposite side of the pair of first adjustment seats 2 and the pair of second adjustment seats 4, and the end of the longitudinal positioning strip 3 is snapped in. It is inserted into the snap-in groove 23 of the first adjustment seat 2 and can be detachably installed through the snap-in assembly 25. The end of the transverse positioning bar 5 is snapped into the snap-in groove 23 of the second adjustment seat 4 and can be detachably installed through the snap-in assembly 25. Through the arrangement of the longitudinal positioning bar 3 and the first adjustment seat 2 and the transverse positioning bar 5 and the second adjustment seat 4, the positions of the longitudinal positioning bar 3 and the transverse positioning bar 5 can be adjusted arbitrarily inside the frame 1, and the snap-in assembly 25 facilitates the disassembly and assembly of the longitudinal positioning bar 3 and the transverse positioning bar 5. The position and quantity of the positioning bars can be installed and adjusted according to needs to reduce the influence of the positioning bars on the display of the posterior spinal structure, thereby achieving precise positioning.

[0031] In this embodiment, if Figure 1 and Figure 2As shown, the bottom of the first adjustment seat 2 and the second adjustment seat 4 are both provided with a mounting groove 21, and the first adjustment seat 2 and the second adjustment seat 4 are sleeved on the frame 1 through the mounting groove 21, and balls 22 are rolled on the inner walls on both sides of the mounting groove 21. A circle of limiting grooves 11 are provided on the inner and outer walls of the frame 1, and the balls 22 are placed in the limiting grooves 11. The first adjustment seat 2 and the second adjustment seat 4 are sleeved on the frame 1 through the mounting grooves 21, and the balls 22 are placed in the limiting grooves 11 to roll. On the one hand, it prevents the first adjustment seat 2 and the second adjustment seat 4 from falling off the frame 1, and on the other hand, it reduces the friction of the movement of the first adjustment seat 2 and the second adjustment seat 4, which facilitates the adjustment of the positions of the longitudinal positioning bar 3 and the transverse positioning bar 5.

[0032] In this embodiment, if Figure 3 As shown, the first adjustment seat 2 and the second adjustment seat 4 are both connected with a positioning member 26, which is used to lock the position of the first adjustment seat 2 and the second adjustment seat 4 on the frame 1. The positioning member 26 includes a threaded rod 261 rotatably connected to the first adjustment seat 2 and the second adjustment seat 4. The top end of the threaded rod 261 extends to the outside of the first adjustment seat 2 and the second adjustment seat 4 and is fixedly connected to a knob 262. The bottom end of the threaded rod 261 extends into the mounting groove 21 and is fixedly connected to a pressing block 263. The top end of the mounting groove 21 is provided with a The groove 27 for accommodating the pressing block 263 is used. After the first adjustment seat 2 and the second adjustment seat 4 are moved to the appropriate position, the threaded rod 261 is rotated by turning the knob 262 to adjust the position of the pressing block 263, and the pressing block 263 is pressed against the top of the frame 1. The bottom of the pressing block 263 is fixedly bonded with an anti-slip gasket, which is preferably made of rubber to increase contact friction and is used to lock the position of the first adjustment seat 2 and the second adjustment seat 4 to avoid position displacement of the longitudinal positioning bar 3 and the transverse positioning bar 5 during use.

[0033] In this embodiment, if Figure 1 and Figure 2 As shown, scale marks are provided on all four sides of the top of the frame 1, and a through slot 28 communicating with the mounting slot 21 is provided on the first adjustment seat 2 and the second adjustment seat 4. The through slot 28 corresponds to the position of the scale mark. When the position of the longitudinal positioning bar 3 and the transverse positioning bar 5 is adjusted, the first adjustment seat 2 and the second adjustment seat 4 move accordingly. The through slot 28 is used in conjunction with the scale mark to indicate the adjustment position of the first adjustment seat 2 and the second adjustment seat 4, thereby accurately adjusting the position of the longitudinal positioning bar 3 and the transverse positioning bar 5, and improving the accuracy of the position adjustment of the longitudinal positioning bar 3 and the transverse positioning bar 5.

[0034] In this embodiment, if Figure 3 and Figure 5As shown, the clamping assembly 25 includes a pair of L-shaped blocks 251, and a receiving groove 24 is provided on the first adjustment seat 2 and the second adjustment seat 4 on the outside of the snap-in groove 23. The receiving groove 24 is a U-shaped structure. A pair of L-shaped blocks 251 are respectively placed on the upper and lower sides of the receiving groove 24. A spring 252 is fixedly connected between the side of the L-shaped block 251 away from the snap-in groove 23 and the inner wall of the receiving groove 24. The top and bottom of both ends of the longitudinal positioning bar 3 and the transverse positioning bar 5 are provided with a clamping groove 31. A through hole 241 is provided between the upper and lower sides of the receiving groove 24 and the snap-in groove 23. One end of the L-shaped block 251 passes through the through hole 241 and is snapped into the clamping groove 31. An expansion piece is provided between the pair of L-shaped blocks 251. When installing the longitudinal positioning bar 3 and When positioning the horizontal positioning bar 5, its end is placed in the corresponding snap-in groove 23 of the first adjustment seat 2 and the second adjustment seat 4. After installation, the snap-in groove 31 is placed at the corresponding position of the L-shaped block 251. At this time, the spring 252 pushes the L-shaped block 251 to move in the direction of the snap-in groove 23, so that one end of the L-shaped block 251 is inserted into the snap-in groove 31, realizing the installation operation of the longitudinal positioning bar 3 and the first adjustment seat 2 and the transverse positioning bar 5 and the second adjustment seat 4. When disassembling, the two L-shaped blocks 251 can be moved away from the expansion piece by pressing the expansion piece, thereby separating the L-shaped block 251 from the snap-in groove 31, facilitating the disassembly of the longitudinal positioning bar 3 and the first adjustment seat 2 and the transverse positioning bar 5 and the second adjustment seat 4. The structure is simple and the operation is convenient.

[0035] In this embodiment, if Figure 5 As shown, the expansion piece includes a hinge rod 254 rotatably connected to the L-shaped block 251, and the ends of the two hinge rods 254 that are close to each other are rotatably connected to the same connecting seat 253. The hinge rod 254 and the connecting seat 253 are both placed in the accommodating groove 24. The expansion piece also includes a pressing block 255 fixedly connected to the connecting seat 253, and one end of the pressing block 255 passes through the first adjustment seat 2 and the second adjustment seat 4 and extends to the outside. When disassembling the longitudinal positioning bar 3 and the transverse positioning bar 5, the pressing block 255 is pressed toward the corresponding first adjustment seat 2 and the second adjustment seat 4, driving the connecting seat 253 to move and adjusting the positions of the two hinge rods 254 to be horizontal, thereby driving the two L-shaped blocks 251 to expand and move away through the hinge rod 254, and disengaging the L-shaped block 251 from the card slot 31, thereby releasing the fixing effect on the longitudinal positioning bar 3 and the transverse positioning bar 5, facilitating the rapid disassembly of the longitudinal positioning bar 3 and the transverse positioning bar 5.

[0036] In this embodiment, if Figure 4 and Figure 5As shown, both ends of the longitudinal positioning bar 3 and the transverse positioning bar 5 are provided with matching sliding inclined surfaces 32 between the L-shaped block 251. Through the setting of the inclined surfaces 32, when the longitudinal positioning bar 3 and the transverse positioning bar 5 are installed, the inclined surfaces 32 of the longitudinal positioning bar 3 and the transverse positioning bar 5 contact and slide with the inclined surfaces 32 of the L-shaped block 251, thereby pushing the L-shaped block 251 to move toward the inside of the accommodating groove 24. When the slot 31 on the longitudinal positioning bar 3 and the transverse positioning bar 5 moves to the L-shaped block 251, the end of the L-shaped block 251 with the inclined surface 32 can be pushed by the action of the spring 252 to automatically snap into the slot 31, thereby greatly improving the convenience of operation.

[0037] In this embodiment, the snap-in slot 23 is opened on the sides of the first adjustment seat 2 and the second adjustment seat 4 , which does not affect the separate assembly and disassembly of the longitudinal positioning strip 3 and the transverse positioning strip 5 .

[0038] Working principle: When in use, the position of the longitudinal positioning bar 3 and the transverse positioning bar 5 can be adjusted by moving the position of the first adjustment seat 2 and the second adjustment seat 4 on the frame 1. After the longitudinal positioning bar 3 and the transverse positioning bar 5 are adjusted to the appropriate position, the threaded rod 261 is rotated by turning the knob 262 to adjust the position of the pressing block 263, and the pressing block 263 is pressed against the top of the frame 1 to lock the position of the first adjustment seat 2 and the second adjustment seat 4 to prevent the longitudinal positioning bar 3 and the transverse positioning bar 5 from shifting in use. The pressing block 255 is moved to the opposite position. The first adjustment seat 2 and the second adjustment seat 4 are pressed in the corresponding direction to drive the connecting seat 253 to move, and the positions of the two hinged rods 254 are adjusted to be horizontal, thereby driving the two L-shaped blocks 251 to expand and move away through the hinged rods 254, and the L-shaped blocks 251 are separated from the card slots 31, so that the fixing effect on the longitudinal positioning strips 3 and the transverse positioning strips 5 can be released, which facilitates the rapid disassembly of the longitudinal positioning strips 3 and the transverse positioning strips 5. The utility model can install and adjust the position and number of the positioning strips according to needs, reduce the influence of the positioning strips on the display of the rear spinal structure, and thus achieve precise positioning.

[0039] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A movable spinal positioning board, comprising a frame (1), characterized in that: A plurality of pairs of first adjustment seats (2) are installed on both the front and rear sides of the frame (1), a longitudinal positioning strip (3) is installed between the pair of the first adjustment seats (2), a plurality of pairs of second adjustment seats (4) are installed on both the left and right sides of the frame (1), a transverse positioning strip (5) is installed between the pair of the second adjustment seats (4), the longitudinal positioning strip (3) and the transverse positioning strip (5) are arranged alternately, the first adjustment seat (2) can be adjusted in position along the length direction of the frame (1), and the second adjustment seat (4) can be adjusted in position along the width direction of the frame (1), a snap-in slot (23) is provided on opposite sides of the pair of the first adjustment seats (2) and the pair of the second adjustment seats (4), the end of the longitudinal positioning strip (3) is snapped into the snap-in slot (23) of the first adjustment seat (2) and is detachably installed through a snap-in assembly (25), and the end of the transverse positioning strip (5) is snapped into the snap-in slot (23) of the second adjustment seat (4) and is detachably installed through a snap-in assembly (25).

2. The movable spinal positioning board according to claim 1, characterized in that: The bottoms of the first adjustment seat (2) and the second adjustment seat (4) are both provided with mounting grooves (21); the first adjustment seat (2) and the second adjustment seat (4) are sleeved on the frame (1) through the mounting grooves (21); balls (22) are rollingly arranged on the inner walls on both sides of the mounting grooves (21); a circle of limiting grooves (11) are provided on the inner and outer walls of the frame (1); the balls (22) are placed in the limiting grooves (11).

3. The movable spinal positioning board according to claim 1, characterized in that: The first adjustment seat (2) and the second adjustment seat (4) are both connected to a positioning member (26), and the positioning member (26) is used to lock the positions of the first adjustment seat (2) and the second adjustment seat (4) on the frame (1).

4. The movable spinal positioning board according to claim 3, characterized in that: The positioning member (26) comprises a threaded rod (261) rotatably connected to the first adjustment seat (2) and the second adjustment seat (4); the top end of the threaded rod (261) extends to the outside of the first adjustment seat (2) and the second adjustment seat (4) and is fixedly connected to a knob (262); the bottom end of the threaded rod (261) extends into the mounting groove (21) and is fixedly connected to a pressing block (263); the top end of the mounting groove (21) is provided with a groove (27) for accommodating the pressing block (263).

5. The movable spinal positioning board according to claim 4, characterized in that: An anti-slip pad is fixedly bonded to the bottom of the pressing block (263).

6. The movable spinal positioning board according to claim 1, characterized in that: The clamping assembly (25) comprises a pair of L-shaped blocks (251); a receiving groove (24) is provided on the first adjustment seat (2) and the second adjustment seat (4) outside the snap-in groove (23); the receiving groove (24) is a U-shaped structure; the pair of L-shaped blocks (251) are respectively placed on the upper and lower sides of the receiving groove (24); a spring (252) is fixedly connected between the side of the L-shaped block (251) away from the snap-in groove (23) and the inner wall of the receiving groove (24); the top and bottom of both ends of the longitudinal positioning strip (3) and the transverse positioning strip (5) are provided with a snap-in groove (31); a through hole (241) is provided between the upper and lower sides of the receiving groove (24) and the snap-in groove (23); one end of the L-shaped block (251) passes through the through hole (241) and is snapped into the snap-in groove (31); an expansion piece is provided between the pair of L-shaped blocks (251).

7. The movable spinal positioning board according to claim 6, characterized in that: The expansion member includes a hinge rod (254) rotatably connected to the L-shaped block (251), and the adjacent ends of the two hinge rods (254) are rotatably connected to the same connecting seat (253). The hinge rods (254) and the connecting seat (253) are both placed in the accommodating groove (24).

8. The movable spinal positioning board according to claim 7, characterized in that: The expansion piece further comprises a pressing block (255) fixedly connected to the connecting seat (253), one end of the pressing block (255) passing through the first adjustment seat (2) and the second adjustment seat (4) and extending to the outside.

9. The movable spinal positioning board according to claim 6, characterized in that: Coordinated sliding inclined surfaces (32) are provided between the two ends of the longitudinal positioning strip (3) and the transverse positioning strip (5) and the L-shaped block (251).

10. The movable spinal positioning board according to claim 1, characterized in that: Scale marks are provided on all four sides of the top of the frame (1); a through slot (28) communicating with the mounting slot (21) is provided on the first adjustment seat (2) and the second adjustment seat (4); the through slot (28) corresponds to the position of the scale marks.

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