Leg bone reduction nail locking device

Abstract

The utility model relates to the technical field of medical instruments, and provides a shank reduction nail locking device which comprises a lower arc-shaped plate and a threaded nail, one side of the lower arc-shaped plate is movably hinged with an upper arc-shaped plate, one side of the lower arc-shaped plate is fixedly connected with a mounting block, one side of the upper arc-shaped plate is fixedly connected with an extension plate, and the extension plate is fixedly connected with the threaded nail. The bottom of the extension plate is fixedly connected with two symmetrically-arranged insertion blocks through screws, a heating assembly is arranged in the lower arc-shaped plate, and through arrangement of a pull rod, a clamping block and other structures, when equipment is installed, the upper arc-shaped plate is rotated firstly, the two insertion blocks below the extension plate are inserted into an installation block, and a top plate is driven to slide downwards; according to the technical scheme, the bottom plate is driven to slide downwards, the locking rod is driven to slide downwards, and the clamping block is driven to be clamped into the insertion block to enable the upper arc-shaped block and the lower arc-shaped block to be tightly connected, so that the equipment is more convenient to disassemble and assemble, and the problems of tedious disassembly and assembly and poor adaptability in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a leg bone reduction nail locking device. Background Art

[0002] At present, the leg bone reduction and locking nail device is a medical device used to treat fractures, mainly used for the reduction and fixation of leg fractures. By using this device, doctors can quickly and accurately restore the normal position of the fracture site and use locking nails to fix it to promote fracture healing.

[0003] The authorization announcement number in the prior art is: CN211796790U, and the name is an orthopedic reduction and locking nail device, which includes: a first arc-shaped fixing frame, a second arc-shaped fixing frame, a screw, a bone screw, an annular mica plate and an electric heating wire. The first arc-shaped fixing frame is arranged below the annular side surface of the locking nail device body, and the second arc-shaped fixing frame is arranged above. The two are connected by fasteners. The bone screw passes through the second arc-shaped fixing frame and is installed on the screw. The screw is located at the upper end of the bone screw. The annular mica plate is respectively installed inside the first arc-shaped fixing frame and the second arc-shaped fixing frame. The electric heating wire is wound on the mica plate. This design improves the fixing effect, increases the warming function, is simple to operate, and has a good reduction effect.

[0004] However, when using this patent, the operator needs to screw multiple screws to assemble the first arc-shaped fixing frame and the second arc-shaped fixing frame together, which makes the installation and disassembly of the device more cumbersome. When using this patent, patients with different body shapes need to use devices of different sizes, which makes the device less adaptable when facing patients with different leg thicknesses.

[0005] The authorization announcement number in the prior art is: CN209932938U, and the name is an orthopedic reduction locking nail device, which includes: a reduction bone screw, a tail handle, a collar and a support rod. The tail handle is welded at one end of the bone screw, and a collar is arranged near the end of the tail handle. The support rod is arranged on the collar. The patent fixes the tail handle by a splint, and after adjusting the rotation angle of the bone screw, the tail handle is fixed with a bolt. The collar is sleeved with the support rod, and fixed with a nut after adjusting the appropriate angle. A buckle is arranged on the support rod, and it is fixed to the bracket or the patient's leg with a strap Velcro, which solves the rotation angle and fixation problems, is easy to operate, and has a good reduction effect.

[0006] However, when using this patent, the operator needs to tighten multiple bolts to install the equipment, which makes the equipment assembly more complicated. Utility Model Content

[0007] The utility model provides a leg bone reduction nail locking device, which solves the problems of complicated assembly and disassembly and poor adaptability in the related technology.

[0008] The technical scheme of the utility model is as follows: a leg bone correction locking nail device comprises a lower arc plate and a threaded nail, one side of the lower arc plate is movably hinged with an upper arc plate, one side of the lower arc plate is fixedly connected with a mounting block, one side of the upper arc plate is fixedly connected with an extension plate, the bottom of the extension plate is fixedly connected with two symmetrically arranged plug blocks by screws, a heating assembly is arranged inside the lower arc plate, a pull rod is slidably assembled inside the mounting block, a pull button is fixedly sleeved on the outer circumference of the pull rod, one end of the pull rod is fixedly connected with a cross bar by screws, one side of the cross bar is fixedly connected with two symmetrically arranged auxiliary rods by screws, a card block is fixedly sleeved on the outer circumference of the auxiliary rod, the interior of the mounting block is fixedly connected with two symmetrically arranged guide columns, the interior of the mounting block is slidably assembled with two symmetrically arranged bottom plates, the top of the bottom plate is fixedly connected with a support block by screws, the top of the support block is fixedly connected with a top plate by screws, and the top of the bottom plate is fixedly connected with a locking rod.

[0009] Preferably, the bottom of the upper arc plate is fixedly connected to a fixing column, an active threaded rod is rotatably installed inside the fixing column, the top of the active threaded rod is fixedly connected to a knob by a screw, an active guide rod is fixedly connected to the inside of the fixing column, a telescopic block is threadedly sleeved on the outer circumference of the active threaded rod, and the bottom of the telescopic block is fixedly connected to a splint by screws.

[0010] Preferably, a telescopic groove is opened inside the guide column, the clamping block is slidably connected inside the telescopic groove, a return spring is sleeved on the outside of the auxiliary rod, and the return spring is jointly connected between the clamping block and the inner wall of the telescopic groove, and the telescopic groove is used for the sliding of the clamping block.

[0011] Preferably, two circular grooves are provided inside the mounting block, the two base plates are slidably connected inside the two circular grooves respectively, an extrusion spring is commonly connected between the base plate and the inner wall of the circular groove, and the circular groove is used for the sliding of the base plate.

[0012] Preferably, a square groove is provided inside the mounting block, and the cross bar is slidably connected inside the square groove, and the square groove is used for the sliding of the cross bar.

[0013] Preferably, a sliding groove is provided inside the mounting block, and the top plate is slidably connected inside the sliding groove, and the sliding groove is used for sliding of the top plate.

[0014] Preferably, a rotation groove is provided inside the fixing column, and the active threaded rod is rotatably installed inside the rotation groove, and the rotation groove is used for the rotation of the active threaded rod.

[0015] Preferably, a sliding groove is provided inside the fixed column, and the telescopic block is slidably connected to the sliding groove, and the sliding groove is used for the telescopic block to slide.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. In the utility model, through the arrangement of the pull rod, the card block and other structures, when the equipment is installed, the upper arc plate is rotated first, and the two plug-in blocks under the extension plate are inserted into the interior of the installation block, which drives the top plate to slide downward, drives the bottom plate to slide downward, drives the locking rod to slide downward, drives the card block to be inserted into the interior of the plug-in block so that the upper arc block and the lower arc block are tightly connected, thereby making the equipment more convenient to disassemble and assemble.

[0018] 2. In the utility model, through the arrangement of the active threaded rod, telescopic block and other structures, when the device is installed, the active threaded rod is driven to rotate by turning the knob, which drives the telescopic block to slide along the active guide rod, and drives the splint to clamp the patient's legs on the arc plate, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the mounting block of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the buffer block of the utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the fixed column of the utility model;

[0024] Figure 5 for Figure 1 The enlarged view of the mark A in FIG.

[0025] Figure 6 for Figure 2 Enlarged view of the area marked B in FIG.

[0026] In the figure: 1. lower arc plate; 2. heating component; 3. buffer block; 4. buffer spring; 5. inner block; 6. buffer plate; 7. upper arc plate; 8. fixed column; 9. telescopic block; 10. clamping plate; 11. active threaded rod; 12. active guide rod; 13. knob; 14. threaded nail; 15. plug block; 16. mounting block; 17. extension plate; 101. pull rod; 102. pull knob; 103. cross bar; 104. auxiliary rod; 105. block; 106. guide column; 107. locking rod; 108. bottom plate; 109. support block; 110. top plate; 111. extrusion spring; 112. reset spring. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1 - Figure 6 As shown, this embodiment proposes a leg bone correction locking nail device, including a lower arc plate 1 and a threaded nail 14, one side of the lower arc plate 1 is movably hinged with an upper arc plate 7, one side of the lower arc plate 1 is fixedly connected with a mounting block 16, one side of the upper arc plate 7 is fixedly connected with an extension plate 17, the bottom of the extension plate 17 is fixedly connected with two symmetrically arranged plug blocks 15 by screws, a heating component 2 is arranged inside the lower arc plate 1, a pull rod 101 is slidably assembled inside the mounting block 16, a pull button 102 is fixedly sleeved on the outer circumference of the pull rod 101, one end of the pull rod 101 is fixedly connected with a cross bar 103 by screws, one side of the cross bar 103 is fixedly connected with two symmetrically arranged auxiliary rods 104 by screws, the outer circumference of the auxiliary rod 104 is fixedly sleeved with a clamping block 105, the mounting block 1 6 is fixedly connected with two symmetrically arranged guide columns 106 inside, and the internal sliding assembly of the mounting block 16 is equipped with two symmetrically arranged bottom plates 108. The top of the bottom plate 108 is fixedly connected with a support block 109 by screws, and the top of the support block 109 is fixedly connected with a top plate 110 by screws. The top of the bottom plate 108 is fixedly connected with a locking rod 107. Through the arrangement of the pull rod 101, the card block 105 and other structures, when the equipment is installed, the upper arc plate 1 is first rotated, and the two plug-in blocks 15 under the extension plate 17 are inserted into the interior of the mounting block 16, driving the top plate 110 to slide downward, driving the bottom plate 108 to slide downward, driving the locking rod 107 to slide downward, and driving the card block 105 to be stuck in the interior of the plug-in block 15 so that the upper arc block and the lower arc block are tightly connected, thereby making it more convenient to disassemble and assemble the equipment.

[0030] like Figure 2 - Figure 6 As shown, a telescopic slot is provided inside the guide column 106, the clamping block 105 is slidably connected inside the telescopic slot, a return spring 112 is sleeved outside the auxiliary rod 104, and the return spring 112 is connected between the clamping block 105 and the inner wall of the telescopic slot.

[0031] like Figure 2 As shown, two circular grooves are provided inside the mounting block 16 , and two bottom plates 108 are slidably connected inside the two circular grooves respectively, and a compression spring 111 is commonly connected between the bottom plate 108 and the inner wall of the circular groove.

[0032] like Figure 2 As shown, a square groove is provided inside the mounting block 16, and the cross bar 103 is slidably connected inside the square groove.

[0033] like Figure 2 As shown, a sliding groove is provided inside the mounting block 16, and the top plate 110 is slidably connected inside the sliding groove.

[0034] The specific implementation principle of this embodiment is as follows: when the device is in use, the operator places the patient's legs in the lower arc plate 1 and flips the upper arc plate 7, inserts the plug block 15 at the bottom of the extension plate 17 into the interior of the mounting block 16, and the two plug blocks 15 drive the two top plates 110 to slide downward, and the two top plates 110 drive the two support blocks 109 to slide downward, and the two support blocks 109 drive the two bottom plates 108 to slide downward and squeeze the two squeezing springs 111. At the same time, the two bottom plates 108 drive the two locking rods 107 to slide downward, and the two locking rods 107 slide out from the inside of the two clamping blocks 105 and release the two reset springs 112. The two reset springs 112 drive the two clamping blocks 105 to slide out of the inside of the two guide columns 106 and slide into the inside of the two plug blocks 15, so that the mounting block 16 and the extension plate 17 are tightly connected. When the operator needs to remove the upper arc plate 7, he needs to pull the button 102. The pull button 102 drives the pull rod 101 to slide, the pull rod 101 drives the cross bar 103 to slide, the cross bar 103 drives the two sub-rods 104 to slide, the two sub-rods 104 drive the two card blocks 105 to slide out of the interior of the plug-in block 15 and slide into the interior of the guide column 106, and squeeze the two return springs 112 inside the two guide columns 106. At this time, the two squeezing springs 111 are released, and the two squeezing springs 111 drive the two bottom plates 108 to slide upward, the two bottom plates 108 drive the two supporting blocks 109 to slide upward, the two supporting blocks 109 drive the two top plates 110 to slide upward, and the two top plates 110 pop the two plug-in blocks 15 out of the interior of the mounting block 16, so that the mounting block 16 and the extension plate 17 are separated, and at the same time, the two bottom plates 108 drive the two locking rods 107 to slide upward, and the two locking rods 107 slide into the interior of the card block 105, thereby locking the card block 105, making it more convenient to disassemble and assemble the equipment during use.

[0035] Example 2

[0036] like Figure 1 - Figure 5As shown, this embodiment also introduces a leg bone correction and locking nail device, which adds the following structure on the basis of the first embodiment: a fixing column 8 is fixedly connected to the bottom of the upper arc plate 7, an active threaded rod 11 is rotatably installed inside the fixing column 8, a knob 13 is fixedly connected to the top of the active threaded rod 11 by a screw, an active guide rod 12 is fixedly connected to the inside of the fixing column 8, a telescopic block 9 is threadedly sleeved on the outer circumference of the active threaded rod 11, and a splint 10 is fixedly connected to the bottom of the telescopic block 9 by a screw, through the arrangement of the active threaded rod 11, the telescopic block 9 and other structures, when the device is installed, the active threaded rod 11 is rotated by rotating the knob 13, the telescopic block 9 is driven to slide along the active guide rod 12, and the splint 10 is driven to clamp the patient's leg on the arc plate, thereby improving the adaptability of the device.

[0037] like Figure 1 - Figure 4 As shown, a rotation groove is provided inside the fixing column 8, and the active threaded rod 11 is rotatably installed inside the rotation groove.

[0038] like Figure 4 As shown, a slide groove is provided inside the fixed column 8, and the telescopic block 9 is slidably connected to the slide groove.

[0039] The specific implementation principle of this embodiment is as follows: when the device is installed, the operator turns the knob 13, the knob 13 drives the active threaded rod 11 to rotate, the active threaded rod 11 drives the telescopic block 9 to slide downward along the active guide rod 12, the telescopic block 9 drives the splint 10 to slide downward, clamping the patient's leg on the lower arc plate 1, and then screwing the threaded nail 14 through a tool to screw the threaded nail 14 into the patient's bone. When the device needs to be removed, it is necessary to first screw the threaded nail 14 in the opposite direction through a tool to screw the threaded nail 14 out of the patient's bone. At the same time, the operator turns the knob 13 in the opposite direction, the knob 13 drives the active threaded rod 11 to rotate in the opposite direction, the active threaded rod 11 drives the telescopic block 9 to slide upward along the active guide rod 12, the telescopic block 9 drives the splint 10 to slide upward, and the clamping of the patient's leg is released, so that the device can maintain stability when used with patients of different body shapes, thereby improving the adaptability of the device.

[0040] When the device clamps the patient's legs, the splint 10 slides downward, and the splint 10 drives the four buffer blocks 3 to slide downward, and the four buffer blocks 3 drive the four inner blocks 5 to slide downward, and the four inner blocks 5 drive the two buffer plates 6 to slide downward. When the two buffer plates 6 contact the patient's legs, the two buffer plates 6 drive the four inner blocks 5 to slide into the interior of the buffer blocks 3 and squeeze the buffer springs 4 inside the four buffer blocks 3, so that the device can protect the patient's legs when clamping the patient's legs.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A leg bone correction and locking device, comprising a lower arc plate (1) and a threaded nail (14), characterized in that: One side of the lower arc plate (1) is movably hinged with an upper arc plate (7), one side of the lower arc plate (1) is fixedly connected with a mounting block (16), one side of the upper arc plate (7) is fixedly connected with an extension plate (17), the bottom of the extension plate (17) is fixedly connected with two symmetrically arranged plug blocks (15) by screws, a heating component (2) is arranged inside the lower arc plate (1), a pull rod (101) is slidably mounted inside the mounting block (16), a pull button (102) is fixedly sleeved on the outer peripheral surface of the pull rod (101), and one end of the pull rod (101) is fixedly connected with a cross bar (103) by screws. One side of the cross bar (103) is fixedly connected to two symmetrically arranged auxiliary bars (104) by screws, and a clamping block (105) is fixedly sleeved on the outer circumference of the auxiliary bar (104). The interior of the mounting block (16) is fixedly connected to two symmetrically arranged guide columns (106). The interior of the mounting block (16) is slidably equipped with two symmetrically arranged bottom plates (108). The top of the bottom plate (108) is fixedly connected to a support block (109) by screws, and the top of the support block (109) is fixedly connected to a top plate (110) by screws. The top of the bottom plate (108) is fixedly connected to a locking rod (107).

2. A leg bone reduction nail locking device according to claim 1, characterized in that: The bottom of the upper arc-shaped plate (7) is fixedly connected to a fixing column (8), an active threaded rod (11) is rotatably mounted inside the fixing column (8), a knob (13) is fixedly connected to the top of the active threaded rod (11) by means of screws, an active guide rod (12) is fixedly connected to the inside of the fixing column (8), a telescopic block (9) is threadedly sleeved on the outer circumference of the active threaded rod (11), and a clamping plate (10) is fixedly connected to the bottom of the telescopic block (9) by means of screws.

3. A leg bone repair nail locking device according to claim 1, characterized in that: A telescopic slot is provided inside the guide column (106), the clamping block (105) is slidably connected inside the telescopic slot, a return spring (112) is sleeved on the outside of the auxiliary rod (104), and the return spring (112) is connected between the clamping block (105) and the inner wall of the telescopic slot.

4. The leg bone reduction nail locking device according to claim 1, characterized in that: Two circular grooves are formed inside the mounting block (16), and the two bottom plates (108) are respectively slidably connected inside the two circular grooves. A compression spring (111) is commonly connected between the bottom plate (108) and the inner wall of the circular groove.

5. The leg bone reduction nail locking device according to claim 1, characterized in that: A square groove is provided inside the mounting block (16), and the cross bar (103) is slidably connected inside the square groove.

6. The leg bone reduction nail locking device according to claim 1, characterized in that: A sliding groove is provided inside the mounting block (16), and the top plate (110) is slidably connected inside the sliding groove.

7. A leg bone repair nail locking device according to claim 2, characterized in that: A rotation groove is provided inside the fixing column (8), and the active threaded rod (11) is rotatably mounted inside the rotation groove.

8. The leg bone repair nail locking device according to claim 2, characterized in that: A sliding groove is provided inside the fixed column (8), and the telescopic block (9) is slidably connected to the sliding groove.

Images