Orthopedic implant external shaping device

Abstract

The utility model discloses an orthopedic implant external shaping device, and particularly relates to the technical field of medical equipment, which comprises a rack, one side of the rack is connected with a box door through a hinge, the top of the rack is provided with a box body, one side of the box body is provided with a pressure pipe, one side of the box body is provided with a piston rod, one end of the piston rod extends into the rack, and the other end of the piston rod extends into the rack. A first connecting hole is formed in the bottom of the piston rod, a limiting mechanism is arranged outside the piston rod, a first mold is arranged at the bottom of the piston rod, a second connecting hole is formed in the rack, and connecting mechanisms are arranged in the second connecting hole and the first connecting hole. According to the utility model, the first mold and the second mold can be connected with the rack more fixedly, so that the molding can be better carried out in the rack, and the molding efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, and more specifically, to an external shaping device for orthopedic implants. Background Art

[0002] Orthopedics, also known as orthopedic surgery, is a specialty or discipline in medicine that specializes in the anatomy, physiology and pathology of the musculoskeletal system, and uses drugs, surgery and physical methods to maintain and develop the normal form and function of this system. During the medical process, it is often necessary to reshape orthopedic implants to facilitate their use by patients. Therefore, an orthopedic implant external shaping device is needed. The existing device takes a lot of time to use, prolongs the operation time, and increases the pain and burden on patients.

[0003] After searching, a Chinese patent with publication number CN107440771A discloses a bone implant shaping device and method. The first mold and the second mold are pre-made according to the patient's bone data. The first mold and the second mold are squeezed by a hydraulic cylinder to shape the bone implant between the first mold and the second mold into a desired shape. The customization of the bone implant before surgery shortens the operation time and reduces the pain and burden of the patient.

[0004] However, the above-mentioned device may encounter the following problems during use: when the structure connects the first mold and the second mold to the frame and the piston rod respectively, the connection between the first mold and the piston rod cannot be fixed, which makes it easy to offset during shaping, thereby affecting the subsequent shaping effect of the mold. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an orthopedic implant external shaping device to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The cam is an orthopedic implant that has a plurality of locking plates at its rear end, and the plurality of locking plates are connected to each other with a plurality of locking plates at the rear end. The plurality of locking plates have plurality of locking plates at their rear ends, and a plurality of locking plates are connected to each other with a plurality of locking plates at the rear end.

[0008] As a further description of the above technical solution: the top of the box body is connected to a cover plate by a hinge, a hydraulic piston plate is arranged inside the box body, multiple sliding balls are arranged on both sides of the hydraulic piston plate, one side of the multiple sliding balls is slidably connected to the box body, the bottom of the hydraulic piston plate is connected to the piston rod, the piston rod is slidably connected to the box body, and a sealing gasket is arranged between the piston rod and the box body. The above technical solution is adopted to facilitate the movement of the piston rod and prevent the hydraulic piston plate from being worn during movement.

[0009] As a further description of the above technical solution: the limiting mechanism includes a connecting sleeve 1 arranged on the outside of the piston rod, a connecting sleeve 2 is arranged on the outside of the first mold, a plurality of limiting rods are arranged on the bottom of the connecting sleeve 1, a plurality of limiting holes are opened on the top of the first mold, the limiting holes are connected to the limiting rods, a plurality of second springs are arranged inside the connecting sleeve 2, a splint is arranged at one end of each of the plurality of second springs, a splint is arranged on the surface of the splint, and the above technical solution is adopted to connect the first mold and the piston rod.

[0010] Technical effects and advantages of the utility model:

[0011] 1. By setting a connecting mechanism, a hydraulic piston plate, a sliding ball and a piston rod for coordinated use, the first mold and the second mold are respectively connected to the first connecting hole and the second connecting hole through threaded protrusions, and the first spring inside the connecting hole drives the arc plate to clamp and move according to threaded protrusions of different sizes. The threaded groove on the surface of the arc plate can be threadedly connected with the threaded protrusion, so that the connection between the first mold and the second mold and the piston rod and the frame is more stable, and the displacement during extrusion shaping is prevented, and the first mold and the second mold are conveniently disassembled and connected, and then the piston rod is driven to move up and down by the hydraulic piston plate. When the hydraulic piston plate moves inside the box, it is connected to the box through the sliding balls on both sides, so that the hydraulic piston plate is prevented from being worn when sliding, thereby improving the use efficiency of the device;

[0012] 2. By setting a limiting mechanism, compared with the prior art, when the first mold is driven by the piston rod for extrusion, the connecting sleeve 1 outside the piston rod is connected to the connecting sleeve 2 outside the first mold, so that the piston rod can be connected and positioned when moving for extrusion, and is connected to the limiting hole through the limiting rod. In order to make the connecting sleeve 2 suitable for first molds of different sizes, the second spring inside drives the splint to connect with the first mold, and the sponge pad on the surface of the splint can increase the contact with the first mold, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the connection structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the limiting structure of the utility model.

[0016] Figure 4 This is a schematic diagram of the box structure of the utility model.

[0017] Figure 5 It is a side structural schematic diagram of the utility model.

[0018] The accompanying drawings are marked as follows: 1. frame; 2. box door; 3. box body; 4. pressure pipe; 5. piston rod; 6. connecting hole 2; 7. first spring; 8. arc plate; 9. threaded groove; 10. threaded protrusion; 11. second mold; 12. first mold; 13. cover plate; 14. hydraulic piston plate; 15. sliding ball; 16. connecting sleeve 1; 17. connecting sleeve 2; 18. limiting rod; 19. limiting hole; 20. second spring; 21. clamping plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in 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.

[0020] The present application embodiment discloses Figure 1-5 The external shaping device of an orthopedic implant shown in the figure specifically includes a frame 1, one side of the frame 1 is connected to a box door 2 through a hinge, the top of the frame 1 is provided with a box body 3, one side of the box body 3 is provided with a pressure tube 4, one side of the box body 3 is provided with a piston rod 5, one end of the piston rod 5 extends to the inside of the frame 1, the bottom of the piston rod 5 is provided with a connecting hole 1, the outside of the piston rod 5 is provided with a limiting mechanism, the bottom of the piston rod 5 is provided with a first mold 12, the inside of the frame 1 is provided with a connecting hole 2 6, the inside of the connecting hole 2 6 and the connecting hole 1 are both provided with a connecting mechanism, the connecting mechanism includes a plurality of first springs 7 arranged inside the connecting hole 1 and the connecting hole 2 6, one end of the plurality of first springs 7 are provided with an arc plate 8, the surface of the arc plate 8 is provided with a threaded groove 9, the inside of the arc plate 8 is provided with a threaded protrusion 10, the threaded protrusion 10 A second mold 11 is provided on one side, wherein one threaded protrusion 10 is connected to the first mold 12. The box door 2 on one side of the frame 1 is opened, and the first mold 12 and the second mold 11 are placed inside the frame 1, so that the first mold 12 and the second mold 11 can be shaped inside the frame 1. The first mold 12 and the second mold 11 are respectively connected to the connecting hole 1 and the connecting hole 2 6 through the threaded protrusion 10. The first spring 7 inside the connecting hole drives the arc plate 8 to clamp and move according to the threaded protrusions 10 of different sizes. The threaded groove 9 on the surface of the arc plate 8 can be threadedly connected with the threaded protrusion 10, so that the connection between the first mold 12 and the second mold 11 and the piston rod 5 and the frame 1 is more stable, preventing deviation during extrusion shaping, and facilitating the disassembly and connection between the first mold 12 and the second mold 11.

[0021] Reference Figure 4 and Figure 5As shown, the top of the box body 3 is connected with a cover plate 13 by a hinge, and a hydraulic piston plate 14 is arranged inside the box body 3. Multiple sliding balls 15 are arranged on both sides of the hydraulic piston plate 14, and one side of the multiple sliding balls 15 is slidably connected to the box body 3. The bottom of the hydraulic piston plate 14 is connected with the piston rod 5, and the piston rod 5 is slidably connected to the box body 3. A sealing gasket is arranged between the piston rod 5 and the box body 3. Pressure is injected into the box body 3 through the pressure pipe 4 on one side of the box body 3 to make the hydraulic piston plate 14 move downward, and the hydraulic piston plate 14 drives the piston rod 5 to move up and down. When the hydraulic piston plate 14 moves inside the box body 3, it is connected to the box body 3 through the sliding balls 15 on both sides to prevent the hydraulic piston plate 14 from wearing when sliding. The sealing gasket arranged between the piston rod 5 and the box body 3 can seal the connection to prevent leakage in the gap, thereby affecting the use of the device, and by opening the cover plate 13 on the top of the box body 3, the mechanism inside the box body 3 can be disassembled and repaired, thereby improving the use efficiency of the device.

[0022] Reference Figure 3 and Figure 4 As shown, the limiting mechanism includes a connecting sleeve 16 arranged on the outside of the piston rod 5, a connecting sleeve 2 17 is arranged on the outside of the first mold 12, a plurality of limiting rods 18 are arranged at the bottom of the connecting sleeve 16, a plurality of limiting holes 19 are opened on the top of the first mold 12, the limiting holes 19 are connected to the limiting rods 18, a plurality of second springs 20 are arranged inside the connecting sleeve 2 17, a clamping plate 21 is arranged at one end of each of the plurality of second springs 20, a sponge pad is arranged on the surface of the clamping plate 21, when the first mold 12 is driven by the piston rod 5 to be extruded, the connecting sleeve 16 outside the piston rod 5 is connected to the connecting sleeve 2 17 outside the first mold 12, so that the piston rod 5 can be connected and positioned when moving for extrusion, and is connected to the limiting hole 19 through the limiting rod 18, and in order to make the connecting sleeve 2 17 suitable for first molds 12 of different sizes, the second spring 20 inside drives the clamping plate 21 to be connected to the first mold 12, and the sponge pad on the surface of the clamping plate 21 can increase the contact with the first mold 12, thereby improving the practicality of the device.

[0023] The working principle of the utility model is as follows: first, the box door 2 on one side of the frame 1 is opened, and the first mold 12 and the second mold 11 are placed inside the frame 1, so that the first mold 12 and the second mold 11 can be shaped inside the frame 1, and the first mold 12 and the second mold 11 are respectively connected to the connecting hole 1 and the connecting hole 2 6 through the threaded protrusion 10, and the first spring 7 inside the connecting hole drives the arc plate 8 to clamp and move according to the threaded protrusion 10 of different sizes, and the threaded groove 9 on the surface of the arc plate 8 can be threadedly connected with the threaded protrusion 10, so that the first mold 12 and the second mold 11 are connected to the piston rod 5 and the frame 1. The connection is more stable, which prevents deviation during extrusion and shaping, and facilitates the disassembly and connection between the first mold 12 and the second mold 11. Then, pressure is injected into the box body 3 through the pressure pipe 4 on one side of the box body 3 to make the hydraulic piston plate 14 move downward. The hydraulic piston plate 14 drives the piston rod 5 to move up and down. When the hydraulic piston plate 14 moves inside the box body 3, it is connected to the box body 3 through the sliding balls 15 on both sides to prevent the hydraulic piston plate 14 from being worn when sliding. The sealing gasket arranged between the piston rod 5 and the box body 3 can seal the connection to prevent leakage at the gap, thereby affecting the use of the device.

[0024] By opening the cover plate 13 on the top of the box body 3, the mechanism inside the box body 3 can be disassembled and repaired, thereby improving the use efficiency of the device. When the first mold 12 is driven by the piston rod 5 for extrusion, the connecting sleeve 16 outside the piston rod 5 is connected to the connecting sleeve 2 17 outside the first mold 12, so that the piston rod 5 can be connected and positioned when moving for extrusion. It is connected to the limiting hole 19 through the limiting rod 18. In order to make the connecting sleeve 2 17 suitable for first molds 12 of different sizes, the second spring 20 inside drives the clamping plate 21 to connect with the first mold 12. The sponge pad on the surface of the clamping plate 21 can increase the contact with the first mold 12, thereby improving the practicality of the device.

[0025] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An orthopedic implant external shaping device, comprising a frame (1), characterized in that: One side of the frame (1) is connected to a box door (2) via a hinge, a box body (3) is arranged on the top of the frame (1), a pressure pipe (4) is arranged on one side of the box body (3), a piston rod (5) is arranged on one side of the box body (3), one end of the piston rod (5) extends into the interior of the frame (1), a connecting hole 1 is provided at the bottom of the piston rod (5), a limiting mechanism is provided outside the piston rod (5), a first mold (12) is provided at the bottom of the piston rod (5), a connecting hole 2 (6) is provided inside the frame (1), and connecting mechanisms are provided inside both the connecting hole 2 (6) and the connecting hole 1; The connection mechanisms each comprise a plurality of first springs (7) arranged inside the first connection hole and the second connection hole (6), each of the plurality of first springs (7) being provided with an arc-shaped plate (8) at one end, a thread groove (9) being provided on the surface of the arc-shaped plate (8), a thread protrusion (10) being provided inside the arc-shaped plate (8), a second mould (11) being provided on one side of the thread protrusion (10), and one of the thread protrusions (10) being connected to the first mould (12).

2. The orthopedic implant external shaping device according to claim 1, characterized in that: The top of the box body (3) is connected to a cover plate (13) via a hinge, a hydraulic piston plate (14) is arranged inside the box body (3), a plurality of sliding balls (15) are arranged on both sides of the hydraulic piston plate (14), and one side of the plurality of sliding balls (15) is slidably connected to the box body (3).

3. The orthopedic implant external shaping device according to claim 2, characterized in that: The bottom of the hydraulic piston plate (14) is connected to a piston rod (5), the piston rod (5) is slidably connected to the box body (3), and a sealing gasket is provided between the piston rod (5) and the box body (3).

4. The orthopedic implant external shaping device according to claim 1, characterized in that: The limiting mechanism comprises a connecting sleeve 1 (16) arranged outside the piston rod (5), a connecting sleeve 2 (17) is arranged outside the first mold (12), a plurality of limiting rods (18) are arranged at the bottom of the connecting sleeve 1 (16), and a plurality of limiting holes (19) are opened at the top of the first mold (12), and the limiting holes (19) are connected to the limiting rods (18).

5. The orthopedic implant external shaping device according to claim 4, characterized in that: A plurality of second springs (20) are arranged inside the second connecting sleeve (17), and a clamping plate (21) is arranged at one end of each of the plurality of second springs (20), and a sponge pad is arranged on the surface of the clamping plate (21).

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