Bone cement injector

Abstract

The utility model discloses a bone cement injector which comprises a bone cement injector body. And the mounting assembly comprises a fixing plate, a silica gel pad, a first connecting plate, a second connecting plate and a pressing plate. According to the bone cement injector, through the arranged fixing assembly, when the bone cement injector needs to be used, firstly, a fixing plate is placed on a support on one side of an operating bed, rotating force is applied to a guide column, after a pressing plate is attached to the surface of the support, rotating force is applied to a guide buckle, a threaded rod is rotated out of a fixing pipe and a movable rod, and pulling force is applied to the movable rod; then the threaded rods are inserted into the fixed pipes and the corresponding limiting holes, the movable rods are fixed into the fixed pipes, the silica gel columns are taken out of the connecting frames and the limiting frames, pulling force is applied to the movable columns, the movable columns are pulled to the needed positions, and the silica gel columns are inserted into the connecting frames and the corresponding limiting frames. The shaking of the needle head can be reduced, so that the injury to muscular tissues is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bone cement injectors, in particular to a bone cement injector. Background Art

[0002] A bone cement injector is a medical device that is mainly used to inject bone cement into bones to strengthen and stabilize bones, promote fracture healing or treat diseases such as bone tumors. It has a wide range of uses and plays a vital role in orthopedic surgery.

[0003] In actual use, when bone cement needs to be injected, the existing injector needs to be placed back and forth. During this process, the needle at the bottom will be displaced, and the needle will come into contact with the skin, causing damage to muscle tissue, thereby increasing the negative impact of the operation. Therefore, it is necessary to provide a bone cement injector to reduce the shaking of the needle and thus reduce the damage to muscle tissue. Utility Model Content

[0004] The purpose of the utility model is to provide a bone cement injector to solve the problem raised in the above-mentioned background technology that, during actual use, when bone cement needs to be injected, the existing injector needs to be placed back and forth. During this process, the needle at the bottom will be displaced, and the needle will contact the skin, causing damage to muscle tissue, thereby increasing the negative impact of the operation.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a bone cement injector, comprising:

[0007] A bone cement injector body;

[0008] An installation assembly, the installation assembly comprising a fixing plate, a silicone pad, a first connecting plate, a second connecting plate, a pressing plate, a threaded column and a guide column;

[0009] Among them, the silicone pad is fixed on the lower surface of the fixed plate, the first connecting plate is fixed on the lower surface of one side of the fixed plate, the second connecting plate is fixed on the lower surface of the other side of the fixed plate, the threaded column passes through and is connected to the inside of the second connecting plate, the pressing plate is fixed on the outer surface of one side of the threaded column, and the guide column is fixed on the outer surface of the other side of the threaded column.

[0010] Furthermore, a fixed tube is fixed on the upper surface of the fixed plate, a movable rod is movably connected to the inside of the fixed tube, limiting holes are equidistantly provided on the movable rod, a threaded rod is internally threadedly connected to the bottom of the movable rod and the top of the fixed tube, and a guide buckle is fixed on the outer surface of the threaded rod.

[0011] Furthermore, a fixed frame is fixed on the upper surface of the movable rod, a movable column is slidably connected inside the fixed frame, and the outer surface of the movable column is an equidistant fixed limited position frame.

[0012] Furthermore, a connecting frame is fixed to the outer surface of one side of the fixing frame, and silicone columns are connected through the connecting frame and the limiting frame, and connecting buckles are fixed to the upper surfaces of the silicone columns.

[0013] Furthermore, it also includes a fixing assembly, which includes a semi-ring plate, a connecting block, a connecting column and a limiting plate;

[0014] Among them, there are two groups of semi-ring plates in total, the inner surface of the semi-ring plates in any group is in contact with the outer surface of the bone cement injector body, the connecting blocks are fixed on the outer surfaces of both ends of the semi-ring plates in any group, and a connecting column is fixed on the outer surface of the connecting block on the other side, the connecting column passes through and is connected to the interior of the connecting block on one side, and the limiting plate is fixed on the outer surface of the top end of the connecting block on one side.

[0015] Furthermore, a moving rod is connected through the interior of the connecting column, a guide rod is fixed on the upper surface of the moving rod, the guide rod is movably connected to the interior of the limiting plate, and springs are fixed inside the moving rod and the limiting plate.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] The utility model provides a fixing assembly. When a bone cement injector is needed, the fixing plate is first placed on a bracket on one side of the operating bed, a rotational force is applied to the guide column, and the threaded column drives the pressing plate to move horizontally, so that after the pressing plate is fitted with the surface of the bracket, a rotational force is applied to the guide buckle to rotate the threaded rod out of the fixing tube and the movable rod, a pulling force is applied to the movable rod to move the movable rod to a desired height, the threaded rod is inserted into the fixing tube and the corresponding limiting hole, a rotational force is applied to the guide buckle to fix the movable rod in the fixing tube, the silicone column is taken out from the connecting frame and the limiting frame, a pulling force is applied to the movable column to pull the movable column to a desired position, and the silicone column is inserted into the connecting frame and the corresponding limiting frame. This scheme can reduce the shaking of the needle, thereby reducing the damage to muscle tissue.

[0018] Based on the first beneficial effect, with the coordinated use of the fixing assembly, when the movable column is fixed to the desired position, first one person places the bone cement injector body into the interior of the semi-ring plate on the other side, and the other person applies an upward force to the guide rod. After the spring is in a compressed state, the connecting block on one side is aligned with the connecting block on the other side, so that the connecting column passes through the interior of the connecting block, and the force applied to the guide rod is cancelled, and the moving rod moves downward, and the moving rod can be moved to the interior of the connecting block. This solution can quickly fix the bone cement injector body inside the semi-ring plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0021] Figure 2 This is a structural diagram of the fixed frame of the utility model;

[0022] Figure 3 This is a structural diagram of the fixed plate of the utility model;

[0023] Figure 4 It is a structural diagram of the fixing component of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 11. Bone cement injector body;

[0026] 21. Fixing plate; 22. Silicone pad; 23. First connecting plate; 24. Second connecting plate; 25. Pressing plate; 26. Threaded column; 27. Guide column; 28. Fixing tube; 281. Movable rod; 282. Limiting hole; 283. Threaded rod; 284. Guide buckle; 29. ​​Fixing frame; 291. Movable column; 292. Limiting frame; 293. Connecting frame; 294. Connecting buckle; 295. Silicone column;

[0027] 31. Semi-ring plate; 32. Connecting block; 33. Connecting column; 34. Limiting plate; 35. Moving rod; 36. Spring; 37. Guide rod. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0030] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-Figure 3 As shown, this embodiment is a bone cement injector, comprising:

[0032] Bone cement injector body 11;

[0033] An installation assembly, the installation assembly includes a fixing plate 21, a silicone pad 22, a first connecting plate 23, a second connecting plate 24, a pressing plate 25, a threaded column 26 and a guide column 27;

[0034] The silicone pad 22 is fixed to the lower surface of the fixing plate 21, the first connecting plate 23 is fixed to the lower surface of one side of the fixing plate 21, the second connecting plate 24 is fixed to the lower surface of the other side of the fixing plate 21, the threaded column 26 penetrates and connects to the inside of the second connecting plate 24, the pressing plate 25 is fixed to the outer surface of one side of the threaded column 26, and the guide column 27 is fixed to the outer surface of the other side of the threaded column 26;

[0035] The fixing plate 21 is used to receive and install the silicone pad 22, and the silicone pad 22 is used to increase the friction force in contact with the bracket. The first connecting plate 23 is used to stably fix the fixing plate 21 at a desired position. The second connecting plate 24 is used for the threaded column 26 to move inside it. The pressing plate 25 is used to fix the bracket between the first connecting plate 23 and the pressing plate 25. The guide column 27 facilitates the application of rotational force to the threaded column 26.

[0036] A fixed tube 28 is fixed on the upper surface of the fixed plate 21, and a movable rod 281 is movably connected to the inside of the fixed tube 28. The movable rod 281 is provided with limit holes 282 at equal intervals. A threaded rod 283 is internally threadedly connected to the bottom of the movable rod 281 and the top of the fixed tube 28. A guide buckle 284 is fixed to the outer surface of the threaded rod 283.

[0037] The fixed tube 28 is used for the movable rod 281 to move inside the fixed tube 28. The movable rod 281 is used to drive the height of the fixed frame 29. The limiting hole 282 is connected to the threaded rod 283, so as to fix the movable rod 281 at different positions. The threaded rod 283 is used to stably fix the movable rod 281 inside the fixed tube 28. The guide buckle 284 facilitates the application of rotational force to the threaded rod 283.

[0038] A fixed frame 29 is fixed on the upper surface of the movable rod 281, and a movable column 291 is slidably connected inside the fixed frame 29, and the outer surface of the movable column 291 is an equidistant fixed limited position frame 292;

[0039] The fixed frame 29 is used for the movable column 291 to move inside it, and the movable column 291 is used to change the position of the semi-ring plate 31, and the limit frame 292 is used to fix the movable column 291 according to the actual required position of the movable column 291;

[0040] A connection frame 293 is fixed to the outer surface of one side of the fixing frame 29, a silicone column 295 is connected through the connection frame 293 and the limiting frame 292, and a connection buckle 294 is fixed to the upper surface of the silicone column 295;

[0041] The connection frame 293 is used to receive and install the silicone column 295, and the silicone column 295 is used to connect the connection frame 293 with the limiting frame 292, so as to fix the movable column 291 to a desired position, and the connection buckle 294 facilitates the removal of the silicone column 295 from the limiting frame 292;

[0042] When the bone cement injector is needed, first place the fixing plate 21 on the bracket on one side of the operating table, apply a rotational force to the guide column 27, and the threaded column 26 drives the pressing plate 25 to move horizontally, so that the pressing plate 25 fits with the surface of the bracket, apply a rotational force to the guide buckle 284, rotate the threaded rod 283 out of the fixing tube 28 and the movable rod 281, apply a pulling force to the movable rod 281, so that the movable rod 281 moves to the required height, insert the threaded rod 283 into the fixing tube 28 and the corresponding limiting hole 282, apply a rotational force to the guide buckle 284, fix the movable rod 281 in the fixing tube 28, take out the silicone column 295 from the connecting frame 293 and the limiting frame 292, apply a pulling force to the movable column 291, pull the movable column 291 to the required position, and insert the silicone column 295 into the connecting frame 293 and the corresponding limiting frame 292;

[0043] This step can reduce the shaking of the needle and thus reduce damage to muscle tissue.

[0044] See also Figure 1 and Figure 4 As shown, this embodiment is based on the above embodiment 1 and further includes a fixing assembly, which includes a semi-ring plate 31, a connecting block 32, a connecting column 33 and a limiting plate 34;

[0045] Among them, there are two groups of semi-ring plates 31, the inner surface of any group of semi-ring plates 31 is in contact with the outer surface of the bone cement injector body 11, the connecting blocks 32 are fixed to the outer surfaces of both ends of any group of semi-ring plates 31, and the outer surface of the connecting block 32 on the other side is fixed with a connecting column 33, the connecting column 33 penetrates and is connected to the inside of the connecting block 32 on one side, and the limiting plate 34 is fixed to the outer surface of the top of the connecting block 32 on one side;

[0046] The semi-ring plate 31 is used to clamp the bone cement injector body 11 therein, the connecting block 32 is used to fix the semi-ring plate 31 together, the connecting column 33 is used to connect the connecting blocks 32 together, and the limiting plate 34 is used for the guide rod 37 to move therein;

[0047] A moving rod 35 is connected to the inside of the connecting column 33, a guide rod 37 is fixed to the upper surface of the moving rod 35, the guide rod 37 is movably connected to the inside of the limit plate 34, and a spring 36 is fixed to the inside of the moving rod 35 and the limit plate 34:

[0048] The moving rod 35 is used to fix the connecting column 33 inside the connecting block 32, the guide rod 37 is convenient for applying a pulling force to the moving rod 35, and the spring 36 is used to change the position of the moving rod 35;

[0049] When the movable column 291 is fixed to the desired position, first one person puts the bone cement injector body 11 into the other side semi-ring plate 31, and the other person applies an upward force to the guide rod 37. After the spring 36 is in a compressed state, the connecting block 32 on one side is aligned with the connecting block 32 on the other side, so that the connecting column 33 passes through the inside of the connecting block 32, and the force applied to the guide rod 37 is canceled, and the movable rod 35 moves downward, and the movable rod 35 moves to the inside of the connecting block 32;

[0050] In this step, the bone cement injector body 11 can be quickly fixed inside the semi-annular plate 31 .

[0051] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A bone cement injector, characterized in that: include: A bone cement injector body (11); An installation assembly, the installation assembly comprising a fixing plate (21), a silicone pad (22), a first connecting plate (23), a second connecting plate (24), a pressing plate (25), a threaded column (26) and a guide column (27); The silicone pad (22) is fixed to the lower surface of the fixing plate (21), the first connecting plate (23) is fixed to the lower surface of one side of the fixing plate (21), the second connecting plate (24) is fixed to the lower surface of the other side of the fixing plate (21), the threaded column (26) penetrates and is connected to the inside of the second connecting plate (24), the pressing plate (25) is fixed to the outer surface of one side of the threaded column (26), and the guide column (27) is fixed to the outer surface of the other side of the threaded column (26).

2. A bone cement injector according to claim 1, characterized in that: A fixed tube (28) is fixed on the upper surface of the fixed plate (21); a movable rod (281) is movably connected to the interior of the fixed tube (28); the movable rod (281) has limit holes (282) equidistantly provided therein; a threaded rod (283) is internally threadedly connected to the bottom of the movable rod (281) and the top of the fixed tube (28); and a guide buckle (284) is fixed to the outer surface of the threaded rod (283).

3. A bone cement injector according to claim 2, characterized in that: A fixed frame (29) is fixed on the upper surface of the movable rod (281), a movable column (291) is slidably connected inside the fixed frame (29), and the outer surface of the movable column (291) is an equidistant fixed limit frame (292).

4. A bone cement injector according to claim 3, characterized in that: A connection frame (293) is fixed to the outer surface of one side of the fixing frame (29), a silicone column (295) is connected through the connection frame (293) and the limiting frame (292), and a connection buckle (294) is fixed to the upper surface of the silicone column (295).

5. A bone cement injector according to claim 1, characterized in that: It also includes a fixing assembly, which includes a semi-ring plate (31), a connecting block (32), a connecting column (33) and a limiting plate (34); There are two groups of semi-annular plates (31) in total, the inner surface of any group of the semi-annular plates (31) is in contact with the outer surface of the bone cement injector body (11), the connecting blocks (32) are fixed to the outer surfaces of both ends of any group of the semi-annular plates (31), the outer surface of the connecting block (32) on the other side is fixed with a connecting column (33), the connecting column (33) penetrates and is connected to the inside of the connecting block (32) on one side, and the limiting plate (34) is fixed to the outer surface of the top end of the connecting block (32) on one side.

6. A bone cement injector according to claim 5, characterized in that: A moving rod (35) is connected and penetrated inside the connecting column (33), a guide rod (37) is fixed on the upper surface of the moving rod (35), the guide rod (37) is movably connected to the inside of the limiting plate (34), and a spring (36) is fixed inside the moving rod (35) and the limiting plate (34).

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