Locking plate used for orthopedic treatment and easy and convenient to disassemble

Abstract

The invention relates to the technical field of orthopedic medical instruments, and discloses a locking plate used for orthopedic treatment and easy and convenient to disassemble, the locking plate comprises a bone fracture plate, fluid cavities distributed up and down are formed in the bone fracture plate, and two injection holes communicating with the two fluid cavities are formed in the outer portion of the bone fracture plate; a plurality of separation holes communicating with the two fluid cavities are formed in the outer portion of the bone fracture plate, dismounting auxiliary components are arranged at the two ends of the bone fracture plate, bone fracture nail containing holes are formed in the bone fracture plate, and an auxiliary dismounting structure is arranged at the end of the bone fracture plate. The auxiliary dismounting structure comprises a U-shaped groove formed in the end part of the bone fracture plate; and the interior of the U-shaped groove is connected with a sliding plate in a sliding manner, wherein the sliding plate intrudes into the injection hole and enables the injection hole to be closed. The locking plate used for orthopedic treatment and easy and convenient to disassemble has the advantages that a metal locking bone fracture plate can be conveniently disassembled, and damage to human tissue is small.

Description

Technical Field

[0001] The present invention relates to the technical field of orthopedic medical appliances, and particularly to a locking plate for orthopedic treatment that is easy to disassemble. Background Art

[0002] An osteosynthesis plate is a plate-shaped fracture internal fixation device with holes. Clinically, it is often used in combination with bone screws or osteosynthesis wires, and is divided into two categories: ordinary osteosynthesis plates and compression osteosynthesis plates. It can be made into a strip shape according to different uses. Since it is usually made of metal, it is also called a metal locking plate.

[0003] Most of the existing metal locking plates can conveniently fix fractured bones under the guidance of fasteners. However, during the recovery period, due to bone growth, adhesion between the bone and the locking plate is likely to occur, which greatly increases the difficulty of removing the locking plate. Therefore, a locking plate for orthopedic treatment that is easy to disassemble is proposed to solve the above problems. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides a locking plate for orthopedic treatment that is easy to disassemble, which has the advantages of being able to conveniently disassemble the metal locking plate and causing little harm to human tissues. It solves the problem that most of the existing metal locking plates can conveniently fix fractured bones under the guidance of fasteners, but during the recovery period, due to bone growth, adhesion between the bone and the locking plate is likely to occur, which greatly increases the difficulty of removing the locking plate.

[0006] (2) Technical Solutions

[0007] The technical solution of the present invention for solving the above technical problems is as follows: A locking plate for orthopedic treatment that is easy to disassemble, including an osteosynthesis plate. A fluid cavity is provided inside the osteosynthesis plate and is distributed vertically. Two injection holes respectively communicating with the two fluid cavities are opened on the outside of the osteosynthesis plate. A number of separation holes respectively communicating with the two fluid cavities are opened on the outside of the osteosynthesis plate. A bone screw placement hole is opened inside the osteosynthesis plate, and an auxiliary disassembly structure is provided at the end of the osteosynthesis plate;

[0008] The auxiliary disassembly structure includes a U-shaped groove opened at the end of the osteosynthesis plate; A sliding plate that penetrates into the injection hole and forms a seal is slidably connected inside the U-shaped groove. A threaded ejector rod is threadedly connected inside the sliding plate. The bottom of the threaded ejector rod is rotatably connected to a support backing plate. A slidable sealing plate is fixed inside the U-shaped groove through a fastener, and a lever is movably installed inside the U-shaped groove.

[0009] The beneficial effects of the present invention are:

[0010] The locking plate for orthopedic treatment and easy to disassemble has the advantages of being able to easily disassemble the metal locking bone plate and causing little harm to human tissues.

[0011] Based on the above technical solutions, the present invention can be further improved as follows.

[0012] Further, the separation hole is in a Y-shaped bifurcated shape and the end located outside the bone plate is the end, and the inside of the injection hole is provided with threads.

[0013] The beneficial effect of adopting the above further solution is that the separation hole arranged in this way can prevent tissues from entering and also prevent direct impact from occurring.

[0014] Further, a plurality of convex platforms are arranged on the outside of the bone plate, and the positions of the convex platforms correspond to the bifurcated positions of the separation holes.

[0015] The beneficial effect of adopting the above further solution is that the arrangement of the convex platforms can further prevent damage to human tissues caused by direct impact of the fluid.

[0016] Further, the bone plate has a contact surface and a fixing surface in contact with the bone, and the convex platforms are arranged on the fixing surface.

[0017] Further, the end of the sealing plate and the end of the bone plate are in the same plane, and the outside of the sliding plate and the outside of the bone plate are in the same plane.

[0018] The beneficial effect of adopting the above further solution is that the sealing plate arranged in this way ensures the overall integrity of the end of the bone plate.

[0019] Further, transmission blocks are arranged at both ends of the force arm rod, and a transmission groove adapted to the shape and size of the transmission block is arranged at the top of the threaded ejector rod.

[0020] The beneficial effect of adopting the above further solution is that the arrangement of the transmission block and the transmission groove facilitates the transmission of kinetic energy.

[0021] Further, a soft filler is arranged on the outside of the force arm rod, and the diameter of the force arm rod is smaller than the diameter of the threaded ejector rod.

[0022] The beneficial effect of adopting the above further solution is that this arrangement can prevent being blocked by the thread when assisting the threaded ejector rod to be screwed downward.

[0023] Further, a complementary block is fixedly installed on the side of the sealing plate close to the center of the bone plate, a sealing gasket is fixedly arranged on the other side of the complementary block, and the width of the complementary block is adapted to the movable distance of the sliding plate.

[0024] The beneficial effect of adopting the above further solution is that the setting of the gasket can prevent tissue fluid from entering the inside of the U-shaped groove.

[0025] Furthermore, the soft filler completely wraps the lever arm, and the lever arm is located between two complementary blocks.

[0026] The beneficial effect of adopting the above further solution is that due to the elasticity of the soft filler, the lever arm cannot form knocking between the complementary blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the present invention;

[0028] Figure 2 is an enlarged view of part A in the figure of the present invention;

[0029] Figure 3 is an enlarged view of part B in the figure of the present invention;

[0030] Figure 4 is a connection diagram of the sealing plate and the bone plate of the present invention;

[0031] Figure 5 is a connection diagram of the U-shaped groove and the sliding plate of the present invention.

[0032] In the figure: 1, bone plate; 2, fluid cavity; 3, injection hole; 4, separation hole; 5, disassembly auxiliary member; 6, bone screw placement hole; 7, auxiliary disassembly structure; 71, U-shaped groove; 72, sliding plate; 73, threaded ejector rod; 74, support backing plate; 75, sealing plate; 76, lever arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] In the embodiment, given by Figures 1-5 a locking plate for orthopedic treatment and easy disassembly, the present invention includes a bone plate 1, a fluid cavity 2 is arranged inside the bone plate 1 in an up-and-down distribution, two injection holes 3 respectively communicating with the two fluid cavities 2 are opened on the outside of the bone plate 1, a plurality of separation holes 4 respectively communicating with the two fluid cavities 2 are opened on the outside of the bone plate 1, a bone screw placement hole 6 is opened inside the bone plate 1, and an auxiliary disassembly structure 7 is arranged at the end of the bone plate 1;

[0035] The auxiliary disassembly structure 7 includes a U-shaped groove 71 opened at the end of the bone plate 1; a sliding plate 72 that slides inside the U-shaped groove 71 and penetrates into the injection hole 3 to form a seal is connected inside the U-shaped groove 71. A threaded ejector rod 73 is threadedly connected inside the sliding plate 72. The bottom of the threaded ejector rod 73 is rotatably connected to a support backing plate 74. A slidable sealing plate 75 is fixed inside the U-shaped groove 71 through a fastener, and a lever arm 76 is movably installed inside the U-shaped groove 71.

[0036] Among them, the separation hole 4 is in a Y-shaped bifurcated shape, and the end located outside the bone plate 1 is the end, and threads are provided inside the injection hole 3.

[0037] During the disengagement process of this part of the thread, it can be directly connected to the fluid pipeline, ensuring the stability of the connection of the positive pressure fluid pipeline.

[0038] Among them, a plurality of bosses are provided on the outside of the bone plate 1, and the positions of the bosses correspond to the bifurcated positions of the separation holes 4.

[0039] Among them, the bone plate 1 has a contact surface and a fixing surface in contact with the bone, and the bosses are provided on the fixing surface.

[0040] The bosses provided in this way can facilitate the change of the fluid direction, making the angle formed by the flow direction of the positive pressure fluid and the human tissue surface smaller, reducing human damage. At the same time, the bosses can also be used to judge the side facing the bone.

[0041] Among them, the end of the sealing plate 75 and the end of the bone plate 1 are in the same plane, and the outside of the sliding plate 72 and the outside of the bone plate 1 are in the same plane.

[0042] Among them, transfer blocks are provided at both ends of the lever arm 76, and a transfer groove adapted to the shape and size of the transfer block is provided at the top of the threaded ejector rod 73.

[0043] Among them, a soft filler is provided on the outside of the lever arm 76, and the diameter of the lever arm 76 is smaller than the diameter of the threaded ejector rod 73.

[0044] Among them, a complementary block is fixedly installed on the side of the sealing plate 75 close to the center of the bone plate 1, a sealing gasket is fixedly provided on the other side of the complementary block, and the width of the complementary block is the same as that of the sliding plate 72

[0045] Among them, the soft filler completely wraps the lever arm 76, and the lever arm 76 is located between the two complementary blocks.

[0046] When the auxiliary disassembly structure 7 is in use, the fastener fixing the sealing plate 75 should be removed, and then the lever arm 76 located inside the sealing plate 75 can be removed. Subsequently, the lever arm 76 and the threaded ejector rod 73 are assembled through the transfer block and the transfer groove. At this time, rotating the lever arm 76 can push the threaded ejector rod 73 to move, and force is exerted through the support backing plate 74, so as to achieve the effect of auxiliary disassembly.

[0047] Working principle:

[0048] During installation, the contact surface of the bone plate 1 is brought into contact with the fractured bone and made to fit. Subsequently, fastening nails are driven through the fixing placement holes 6 to completely fix the bone. At this time, the sliding plate 72 is slid to seal the injection hole 3 to prevent a large amount of human tissue and tissue fluid from entering. Then, the sealing plate 75 is installed through fasteners and the exposed separation hole 4 is disinfected, thus completing the installation;

[0049] When it is necessary to remove it, first remove the sealing plate 75. Subsequently, the sliding plate 72 is toggled so that the injection hole 3 can be connected to the fluid pipeline. After the fluid pipeline is connected, fluid is preferably injected into the fluid cavity at the end far from the fractured bone first, so that the human tissue no longer adheres in a large area under the pressure of the fluid. Then, this end is disconnected and pressure is applied to the other end. When the fluid pressure is not sufficient to separate the fractured bone from the bone plate 1, the lever arm 76 is removed and the auxiliary disassembly structure 7 is used for assistance, so that the bone plate 1 and the fractured bone can be better separated under the dual pressures of the fluid pressure support pad 74.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking plate for orthopedic treatment that is easily disassembled, comprising a bone plate (1), characterized in that: Inside the bone plate (1), there are fluid cavities (2) distributed vertically. On the outside of the bone plate (1), there are two injection holes (3) respectively communicating with the two fluid cavities (2). On the outside of the bone plate (1), there are several separation holes (4) respectively communicating with the two fluid cavities (2). Inside the bone plate (1), there are bone screw placement holes (6). At the end of the bone plate (1), there is an auxiliary disassembly structure (7). The auxiliary disassembly structure (7) includes a U-shaped groove (71) opened at the end of the bone plate (1). Inside the U-shaped groove (71), there is a sliding plate (72) that slides into the injection hole (3) and forms a seal. Inside the sliding plate (72), there is a threaded ejector rod (73) connected by threads. At the bottom of the threaded ejector rod (73), there is a support backing plate (74) rotatably connected. Inside the U-shaped groove (71), there is a slidable sealing plate (75) fixed by fasteners. Inside the U-shaped groove (71), there is a lever arm (76) movably installed.

2. The locking plate for orthopedic treatment that is easily disassembled according to claim 1, characterized in that: The separation holes (4) are in a Y-shaped bifurcation, and the end on the outside of the bone plate (1) is the end. The inside of the injection hole (3) is threaded.

3. The locking plate for orthopedic treatment that is easily disassembled according to claim 1, characterized in that: On the outside of the bone plate (1), there are multiple bosses, and the positions of the bosses correspond to the bifurcation positions of the separation holes (4).

4. The locking plate for orthopedic treatment that is easily disassembled according to claim 1, characterized in that: The bone plate (1) has a contact surface and a fixing surface in contact with the bone, and the bosses are arranged on the fixing surface.

5. The locking plate for orthopedic treatment that is easily disassembled according to claim 1, characterized in that: The end of the sealing plate (75) and the end of the bone plate (1) are in the same plane, and the outside of the sliding plate (72) and the outside of the bone plate (1) are in the same plane.

6. The locking plate for orthopedic treatment that is easily disassembled according to claim 1, characterized in that: Both ends of the lever arm (76) are provided with transfer blocks, and at the top of the threaded ejector rod (73), there is a transfer groove adapted to the shape and size of the transfer blocks.

7. The locking plate for orthopedic treatment that is easily disassembled according to claim 1, characterized in that: The outside of the lever arm (76) is provided with soft filler, and the diameter of the lever arm (76) is smaller than the diameter of the threaded ejector rod (73).

8. The locking plate for orthopedic treatment that is easily disassembled according to claim 1, characterized in that: On the side of the sealing plate (75) close to the center of the bone plate (1), there is a complementary block fixedly installed. On the other side of the complementary block, there is a sealing gasket fixedly arranged. The width of the complementary block is adapted to the movable distance of the sliding plate (72).

9. The locking plate for orthopedic treatment that is easily disassembled according to claim 1, characterized in that: The soft filler completely wraps the lever arm (76), and the lever arm (76) is located between the two complementary blocks.

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