Fixing device for spinal operation

Abstract

The invention belongs to the technical field of medical instruments, and discloses a spinal operation fixing device which comprises a bed board, supporting columns are installed at the bottom of the bed board, a telescopic rod is slidably connected to the top of the bed board through a rail, and a wound fixing frame is installed at the top of the telescopic rod. A movable plate is connected to the position, close to the lower portion of the wound fixing frame, of the top of the bed plate, a fixing plate is installed at the top of the movable plate, a connecting column is connected to the top of the fixing plate, and a spine fixing frame is installed at the top end of the connecting column; through cooperation of the rocking handle, the lead screw, the movable block, the movable plate and other structures, the spine fixing frame can stably slide along the bed plate, then the spine fixing frame can be rapidly and accurately adjusted to the position under a spine operation part of a patient, operation is easy and convenient, the spine fixing frame is stable and reliable in movement, and the spine fixing frame is convenient to use. And the use effect of the device is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a spinal surgery fixation device. Background Art

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items used directly or indirectly on the human body, including the required computer software. The effectiveness is mainly obtained through physical means, not through pharmacological, immunological or metabolic means, or although these means are involved, they only play a supporting role. The medical device industry involves multiple industries such as medicine, machinery, electronics, and plastics. It is a multidisciplinary, knowledge-intensive, and capital-intensive high-tech industry.

[0003] The spine is the pillar of the body, located in the middle of the back, with the upper end connected to the skull and the lower end reaching the tip of the coccyx. It has functions such as weight-bearing, shock absorption, protection and movement. During spinal surgery, the patient's spinal surgery site needs to maintain a certain curvature so that the spinal segment that requires surgery is exposed to facilitate surgery by medical staff. When the existing spinal surgery fixation device has an unstable sliding of the spinal fixation bracket and a large deviation in the movement range, it is difficult to quickly and accurately adjust to the position directly below the patient's spinal surgery site. In addition, the patient's head fixation effect is poor and it is difficult to make corresponding adjustments according to the patient's body shape, which can easily lead to head movement and affect surgical treatment. Summary of the invention

[0004] The object of the present invention is to provide a spinal surgery fixation device to solve the problems of unstable movement and large deviation of the spinal fixation bracket proposed in the above background technology, and poor fixation effect on the patient's head.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a spinal surgical fixation device, comprising a bed board, a pillar is installed at the bottom of the bed board, and a telescopic rod is slidably connected to the top of the bed board through a track, a wound fixation frame is installed on the top of the telescopic rod, a movable plate is connected to the top of the bed board near the bottom of the wound fixation frame, a fixed plate is installed on the top of the movable plate, a connecting column is connected to the top of the fixed plate, a spinal fixation frame is installed on the top of the connecting column, a cavity is opened inside the bed board, a screw rod is movably connected to the inside of the cavity through a bearing, a threaded sleeve is installed on the outer wall of the screw rod, two movable blocks are fixed to the top of the threaded sleeve, one end of the two movable blocks extending to the outside of the bed board is connected to the movable board, and a crank is installed on the screw rod extending to the outside of the bed board.

[0006] Preferably, a groove is formed at the bottom of the spinal fixation frame, a second spring is sleeved on the outer wall of the connecting column, and a first spring is fixed to one end of the connecting column extending into the groove, and one end of the first spring away from the connecting column is connected to the inner wall of the groove.

[0007] Preferably, a support plate is installed at one end of the top of the bed board, a slide groove is opened inside the support plate, and two support columns are installed on the side of the support plate close to the spinal fixation frame, the inner sides of the two support columns are connected with arc-shaped splints, and one end of the two support columns extending into the interior of the support plate is connected to the slide groove, and an adjustment knob is screwed and connected between the top side of the support plate and the support column.

[0008] Preferably, a clamping block is installed at the bottom of the fixed plate, a clamping groove matching the clamping block is opened at the top of the movable plate, a sliding block is installed at the bottom of the threaded sleeve, and a limiting groove matching the sliding block is opened at the inner bottom end of the cavity.

[0009] Preferably, a foot pad is installed at the bottom of the pillar, and the bottom of the foot pad is provided with anti-slip convex patterns.

[0010] Preferably, one end of the second spring is connected to the fixing plate, and the other end of the second spring is connected to the spinal fixation frame.

[0011] Preferably, a rubber pad is installed on the inner wall of the card slot, and an anti-slip groove is provided on the outer wall of the rubber pad.

[0012] Preferably, a protective cover is installed on the outer wall of the crank handle, and a protrusion is provided on the outer wall of the protective cover.

[0013] Preferably, handles are installed on both sides of the bed board, and the handles are U-shaped.

[0014] Preferably, a sponge pad is installed on one side of the top of the bed board close to the support plate, and the sponge pad is located below the support column.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention enables the spinal fixation frame to slide smoothly along the bed board through the coordination of structures such as the crank handle, the screw rod, the movable block and the movable plate, and can then quickly and accurately adjust the spinal fixation frame to just below the patient's spinal surgery site. The operation is not only simple and convenient, but the movement of the spinal fixation frame is also stable and reliable, greatly improving the use effect of the device.

[0017] (2) The present invention can greatly reduce the hard contact between the patient and the spinal fixation frame through the coordination of structures such as the connecting column, the fixing plate and the first spring, thereby providing buffering protection for the patient's spine, avoiding injuries when the spine is protruding, and greatly improving safety.

[0018] (3) The present invention can make the two arc-shaped splints approach or move away from each other through the coordination of structures such as the support plate, the support column, the slide groove and the arc-shaped splint, thereby facilitating the control of the clamping distance of the arc-shaped splint according to the size of the patient's head, so as to better fix the patient's head, prevent head movement, and improve the fixation effect.

[0019] (4) The present invention can improve the stability of the threaded sleeve when it moves by cooperating with the slider and the limit groove, and can realize the rapid disassembly and assembly between the fixed plate and the movable plate by cooperating with the clamping block and the clamping groove, thereby facilitating the replacement of the spinal fixation frame, facilitating maintenance, and greatly improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0022] Figure 3 for Figure 1 Enlarged view of middle part B;

[0023] Figure 4 It is a structural schematic diagram of the support plate and the support column of the present invention when they are connected;

[0024] Figure 5 It is a structural schematic diagram of the present invention when the movable plate is connected to the fixed plate;

[0025] In the figure: 1. pillar; 2. bed board; 3. cavity; 4. screw rod; 5. limit groove; 6. movable plate; 7. slider; 8. threaded sleeve; 9. telescopic rod; 10. wound fixation frame; 11. spine fixation frame; 12. arc splint; 13. support column; 14. support plate; 15. crank handle; 16. movable block; 17. fixed plate; 18. groove; 19. first spring; 20. second spring; 21. connecting column; 22. slide groove; 23. adjusting knob; 24. slot; 25. block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 5As shown, the present invention provides the following technical solutions: a spinal surgery fixation device, comprising a bed board 2, a support column 1 is installed at the bottom of the bed board 2, and a telescopic rod 9 is slidably connected to the top of the bed board 2 through a track, a wound fixation frame 10 is installed on the top of the telescopic rod 9, a movable plate 6 is connected to the top of the bed board 2 near the bottom of the wound fixation frame 10, a fixed plate 17 is installed on the top of the movable plate 6, a connecting column 21 is connected to the top of the fixed plate 17, a spinal fixation frame 11 is installed on the top of the connecting column 21, a cavity 3 is opened inside the bed board 2, a screw rod 4 is movably connected to the inside of the cavity 3 through a bearing, a threaded sleeve 8 is installed on the outer wall of the screw rod 4, and two screws are fixed on the top of the threaded sleeve 8. The movable blocks 16 are connected to the movable plate 6 at one end extending from the bed board 2. The screw rod 4 is extended to the outside of the bed board 2 and is equipped with a crank 15. The crank 15 is turned to drive the screw rod 4 to rotate, and then the screw rod 4 drives the threaded sleeve 8 to move through the thread, so that the threaded sleeve 8 drives the movable block 16 to move. Then the movable block 16 drives the fixed plate 17 to move through the movable plate 6, so that the spinal fixation frame 11 can slide smoothly along the bed board 2, and then the spinal fixation frame 11 can be quickly and accurately adjusted to the position directly below the patient's spinal surgery site. Not only is the operation simple and convenient, but the movement of the spinal fixation frame 11 is stable and reliable, which greatly improves the use effect of the device.

[0028] Furthermore, a groove 18 is provided at the bottom of the spinal fixation frame 11, and a second spring 20 is sleeved on the outer wall of the connecting column 21, and a first spring 19 is fixed to one end of the connecting column 21 extending into the groove 18, and one end of the first spring 19 away from the connecting column 21 is connected to the inner wall of the groove 18. When the patient presses on the spinal fixation frame 11, the spinal fixation frame 11 can move downward, so that the connecting column 21 enters the groove 18 and squeezes the first spring 19. At the same time, the spinal fixation frame 11 and the fixing plate 17 approach each other and squeeze the second spring 20. Under the elastic action of the second spring 20 and the first spring 19, the hard contact between the patient and the spinal fixation frame 11 can be greatly reduced, thereby providing buffering protection for the patient's spine, avoiding injuries when the spine is bulging, and greatly improving safety.

[0029] Furthermore, a support plate 14 is installed at one end of the top of the bed board 2, and a slide groove 22 is opened inside the support plate 14, and two support columns 13 are installed on the side of the support plate 14 close to the spine fixation frame 11, and the inner sides of the two support columns 13 are connected with arc splints 12, and the ends of the two support columns 13 extending to the inside of the support plate 14 are connected to the slide groove 22, and an adjusting knob 23 is screwed and connected between the top side of the support plate 14 and the support column 13. The support column 13 is loosened by turning the adjusting knob 23, and then the support column 13 is pushed to slide in the slide groove 22, so that the two arc splints 12 can be driven to move closer or farther from each other, and then it is convenient to control the clamping distance of the arc splint 12 according to the size of the patient's head, so as to better fix the patient's head, prevent head movement, and improve the fixation effect.

[0030] Furthermore, a clamping block 25 is installed at the bottom of the fixed plate 17, a clamping groove 24 matching the clamping block 25 is opened on the top of the movable plate 6, a slider 7 is installed at the bottom of the threaded sleeve 8, and a limiting groove 5 matching the slider 7 is opened at the inner bottom end of the cavity 3. The slider 7 slides in the limiting groove 5, thereby improving the stability of the threaded sleeve 8 when moving. The clamping block 25 and the clamping groove 24 are engaged with each other, so that the fixed plate 17 and the movable plate 6 can be quickly disassembled and assembled, thereby facilitating the replacement of the spinal fixation frame 11, facilitating maintenance, and greatly improving practicality.

[0031] Specifically, a foot pad is installed at the bottom of the pillar 1, the foot pad has a stabilizing effect, and the bottom of the foot pad is provided with anti-slip convex patterns.

[0032] Specifically, one end of the second spring 20 is connected to the fixing plate 17 , and the other end of the second spring 20 is connected to the spine fixing frame 11 .

[0033] Specifically, a rubber pad is installed on the inner wall of the card slot 24, and the rubber pad has an anti-slip function, and an anti-slip groove is opened on the outer wall of the rubber pad.

[0034] Specifically, a protective cover is installed on the outer wall of the crank 15, and the friction force on the surface of the crank 15 can be enhanced by the protective cover, and the outer wall of the protective cover is provided with a protrusion.

[0035] Specifically, handles are installed on both sides of the bed board 2, which facilitate the carrying of the device, and the handles are U-shaped.

[0036] Specifically, a sponge pad is installed on one side of the top of the bed board 2 close to the support plate 14 , through which the patient's forehead can be protected, and the sponge pad is located below the support column 13 .

[0037] The working principle and use process of the present invention: when using the present invention, first make the patient lie on the bed board 2, loosen the support column 13 by twisting the adjustment knob 23, and then push the support column 13 to make it slide in the slide groove 22, so as to drive the two arc-shaped splints 12 to move closer or farther from each other, and then it is convenient to control the clamping distance of the arc-shaped splints 12 according to the size of the patient's head, so as to better fix the patient's head, prevent the head from moving, and improve the fixation effect. At the same time, the crank 15 is turned to drive the screw rod 4 to rotate, and then the screw rod 4 drives the threaded sleeve 8 to move through the thread, so that the threaded sleeve 8 drives the movable block 16 to move, and then the movable block 16 drives the fixed plate 17 to move through the movable plate 6, so that the spinal fixation frame 11 slides smoothly along the bed board 2, and then the spinal fixation frame 11 can be quickly and accurately adjusted to the position directly below the patient's spinal surgery site, which is not only simple and convenient to operate, but also easy to operate. The invention is convenient and the movement of the spinal fixation frame 11 is stable and reliable, which greatly improves the use effect of the device. When the patient presses on the spinal fixation frame 11, the spinal fixation frame 11 can move downward, so that the connecting column 21 enters the groove 18 and squeezes the first spring 19. At the same time, the spinal fixation frame 11 and the fixing plate 17 are close to each other and squeeze the second spring 20. Under the elastic action of the second spring 20 and the first spring 19, the hard contact between the patient and the spinal fixation frame 11 can be greatly reduced, thereby buffering and protecting the patient's spine, avoiding injuries when the spine is bulging, and greatly improving safety. In addition, by sliding the slider 7 in the limiting groove 5, the stability of the threaded sleeve 8 when moving can be improved. By engaging the clamping block 25 with the clamping groove 24, the fast disassembly and assembly between the fixing plate 17 and the movable plate 6 can be realized, so as to facilitate the replacement of the spinal fixation frame 11, and the maintenance is convenient, which greatly improves the practicality.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spinal surgery fixation device, characterized in that: The invention comprises a bed board (2), a support column (1) is installed at the bottom of the bed board (2), and a telescopic rod (9) is slidably connected to the top of the bed board (2) through a track, a wound fixing frame (10) is installed on the top of the telescopic rod (9), a movable board (6) is connected to the top of the bed board (2) near the bottom of the wound fixing frame (10), a fixed board (17) is installed on the top of the movable board (6), and a connecting column (21) is connected to the top of the fixing board (17), and the top of the connecting column (21) is connected to the wound fixing frame (10). A spine fixing frame (11) is installed at the end, a cavity (3) is opened inside the bed board (2), a screw rod (4) is movably connected to the inside of the cavity (3) through a bearing, a threaded sleeve (8) is installed on the outer wall of the screw rod (4), two movable blocks (16) are fixed on the top of the threaded sleeve (8), one end of the two movable blocks (16) extending to the outside of the bed board (2) is connected to the movable board (6), and a crank handle (15) is installed on the screw rod (4) extending to the outside of the bed board (2).

2. A spinal surgery fixation device according to claim 1, characterized in that: The bottom of the spinal column fixation frame (11) is provided with a groove (18), the outer wall of the connecting column (21) is sleeved with a second spring (20), and the end of the connecting column (21) extending into the interior of the groove (18) is fixed with a first spring (19), and the end of the first spring (19) away from the connecting column (21) is connected to the inner wall of the groove (18).

3. A spinal surgery fixation device according to claim 1, characterized in that: A support plate (14) is installed at one end of the top of the bed board (2), a slide groove (22) is provided inside the support plate (14), and two support columns (13) are installed on the side of the support plate (14) close to the spine fixation frame (11), the inner sides of the two support columns (13) are connected with arc-shaped splints (12), and one end of the two support columns (13) extending to the inside of the support plate (14) is connected to the slide groove (22), and an adjustment knob (23) is screwed and connected between the top side of the support plate (14) and the support column (13).

4. A spinal surgery fixation device according to claim 1, characterized in that: A clamping block (25) is installed at the bottom of the fixed plate (17), a clamping groove (24) matching the clamping block (25) is opened at the top of the movable plate (6), a sliding block (7) is installed at the bottom of the threaded sleeve (8), and a limiting groove (5) matching the sliding block (7) is opened at the inner bottom end of the cavity (3).

5. The spinal surgery fixation device according to claim 1, characterized in that: A foot pad is installed at the bottom of the support (1), and the bottom of the foot pad is provided with anti-slip convex patterns.

6. A spinal surgery fixation device according to claim 2, characterized in that: One end of the second spring (20) is connected to the fixing plate (17), and the other end of the second spring (20) is connected to the spinal column fixing frame (11).

7. A spinal surgery fixation device according to claim 4, characterized in that: The inner wall of the card slot (24) is provided with a rubber pad, and the outer wall of the rubber pad is provided with an anti-slip groove.

8. The spinal surgery fixation device according to claim 1, characterized in that: A protective sleeve is installed on the outer wall of the crank handle (15), and a protrusion is arranged on the outer wall of the protective sleeve.

9. The spinal surgery fixation device according to claim 1, characterized in that: Handles are installed on both sides of the bed board (2), and the handles are in a U-shaped structure.

10. The spinal surgery fixation device according to claim 3, characterized in that: A sponge pad is installed on one side of the top of the bed board (2) close to the support plate (14), and the sponge pad is located below the support column (13).

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