A speed-adjustable bone cement filler

Abstract

The utility model relates to the technical field of bone cement fillers, and discloses a speed-adjustable bone cement filler, including: a storage tube, wherein both left and right sides of the storage tube are provided with limit slots. The utility model sets a first gear, a spring, a second gear and a first rotating block. When medical staff pull two blocks to move forward at the same time, the two springs will drive two rotating shafts to move toward each other through two moving blocks under the limit of two limit blocks, and then the two rotating shafts will drive the second gear and the third gear to move toward each other, and then the second gear and the third gear will mesh with the first gear in the movement toward each other. Since the diameter of the second gear is larger than that of the third gear, when the third gear drives the first gear to rotate, the rotation speed of the first gear will be slower than that of the second gear driving the first gear to rotate, thereby realizing the function of adjusting the bone cement injection flow according to the operation requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of bone cement fillers, and more specifically, to a speed-adjustable bone cement filler. Background Art

[0002] Bone cement is the common name for bone adhesive, a medical material used in orthopedic surgery. It has such a popular name because some of its physical properties and its appearance and properties after solidification are quite similar to white cement used in construction and decoration.

[0003] When medical staff need to treat a patient's joints, they often use a bone cement filler so that they can penetrate deep into the patient's joints to fill the joints with bone cement. In actual use, although the existing bone cement fillers have the basic function of injecting bone cement, when injecting bone cement, medical staff often need to choose different injection speeds according to the patient's bone injury. Even during the injection process of a single patient, the injection speed must be changed multiple times to ensure the integrity of the filling. If bone cement is injected at a constant speed all the time, it will not only affect the operation, but also cause pain to the patient, which brings inconvenience to the medical staff's operation. Therefore, it needs to be improved. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a speed-adjustable bone cement filler, which has the advantage of being able to adjust the bone cement injection flow rate according to operation requirements.

[0005] To achieve the above object, the utility model provides the following technical solution: a speed-adjustable bone cement filler, comprising:

[0006] A material storage tube, wherein both left and right sides of the material storage tube are provided with limit grooves, the top of the material storage tube is movably connected with a first gear, the bottom end of the first gear is fixedly installed with a first threaded rod, the bottom end of the first threaded rod passes through the top of the material storage tube and extends into the inside of the material storage tube, the outer surface of the first threaded rod is threadedly sleeved with a push plate, the outer surface of the push plate is movably sleeved with the inside of the material storage tube, and the outer surfaces of the left and right sides of the push plate are both movably connected with the inside of the limit groove;

[0007] A speed regulating mechanism, the speed regulating mechanism being arranged at the top ends of the outer surfaces of the left and right sides of the storage tube;

[0008] Wherein, the speed regulating mechanism includes a limit block, and there are two limit blocks. The opposite ends of the two limit blocks are respectively fixedly installed on the top ends of the outer surfaces of the left and right sides of the storage tube, and fixed blocks are fixedly installed in front of the top ends of the two limit blocks. The fixed blocks are movably sleeved with a stopper inside, and the two limit blocks are movably connected with moving blocks inside. A spring is fixedly installed on the outer surface of the moving block, and the other end of the spring is fixedly connected to the outer surface of the storage tube. A rotating shaft is movably sleeved inside the moving block. There are two rotating shafts, and the outer surfaces of the two rotating shafts are movably connected to the outer surfaces of the stoppers. The outer surfaces of the two rotating shafts are respectively fixedly sleeved with a second gear and a third gear.

[0009] As a preferred technical solution of the utility model, a first rotating block is fixedly installed on the top of the two rotating shafts, and a round shaft is fixedly installed on the top of the first rotating block.

[0010] As a preferred technical solution of the utility model, a fixing plate is fixedly installed on the top of the storage tube, an arc block is fixedly installed inside the fixing plate, and the outer surface of the arc block is movably connected to the inside of the top of the first gear.

[0011] As a preferred technical solution of the utility model, the bottom end of the storage tube is movably sleeved with a puncture needle tube, the top end of the outer surface of the puncture needle tube is fixedly sleeved with a round block, and the top end of the round block is movably connected to the bottom end of the storage tube.

[0012] As a preferred technical solution of the utility model, handles are fixedly installed at the bottom ends of the left and right sides of the storage tube, and a fixed clamping block is fixedly installed behind the bottom end of the storage tube, and the outer surface of the fixed clamping block is movably connected to the outer surface of the round block.

[0013] As a preferred technical solution of the utility model, a square block is fixedly installed in front of the bottom end of the storage tube, a second threaded rod is sleeved on the inner thread of the square block, and a second rotating block is fixedly installed on the front of the second threaded rod.

[0014] As a preferred technical solution of the utility model, a moving clamp is movably connected to the front of the bottom end of the storage tube, and the interior of the front side of the moving clamp is movably sleeved with the outer surface of the rear end of the second threaded rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a first gear, a spring, a second gear and a first rotating block. When the medical staff pulls the two blocks to move forward at the same time, due to the elastic force of the two springs, the two springs will drive the two rotating shafts to move toward each other under the limit of the two limit blocks through the two moving blocks, and then the two rotating shafts will drive the second gear and the third gear to move toward each other, and then the second gear and the third gear will mesh with the first gear during the relative movement. Since the diameter of the second gear is larger than that of the third gear, the rotation speed of the first gear when the third gear drives the first gear to rotate will be slower than that when the second gear drives the first gear to rotate, thereby realizing the function of adjusting the bone cement injection flow rate according to the operation requirements.

[0017] 2. The utility model provides a round block, a fixed clamping block, a second threaded rod and a moving clamping block. When the medical staff drives the second threaded rod to rotate through the second rotating block, the inner part of the square block is threadedly sleeved with the outer surface of the second threaded rod. At this time, the second threaded rod will move backward during the rotation, and then the moving clamping block will move driven by the second threaded rod. Since the top end of the moving clamping block is movably connected with the bottom end of the storage tube, the second threaded rod will drive the moving clamping block to move backward, and then the moving clamping block will contact the outer surface of the round block during the backward movement. At this time, the round block will be clamped and fixed under the cooperation of the moving clamping block and the fixed clamping block, thereby realizing the function of convenient installation and disassembly of the puncture needle tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the utility model;

[0021] Figure 4 This is a schematic cross-sectional view of the material storage tube of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the first gear of the utility model;

[0023] Figure 6 for Figure 3 A schematic diagram of the local enlarged structure at point A in the middle;

[0024] Figure 7 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0025] In the figure: 1. material storage tube; 2. limiting groove; 3. first gear; 4. push plate; 5. limiting block; 6. fixed block; 7. stop block; 8. moving block; 9. spring; 10. rotating shaft; 11. second gear; 12. third gear; 13. first rotating block; 14. round shaft; 15. fixed plate; 16. arc block; 17. first threaded rod; 18. handle; 19. puncture needle tube; 20. round block; 21. fixed clamping block; 22. square block; 23. second threaded rod; 24. second rotating block; 25. moving clamping block. DETAILED DESCRIPTION

[0026] 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 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 in 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.

[0027] like Figures 1 to 7 As shown, the utility model provides a speed-adjustable bone cement filler, comprising:

[0028] A material storage tube 1, with limit grooves 2 provided on both left and right sides of the inside of the material storage tube 1, a first gear 3 being movably connected to the top of the material storage tube 1, a first threaded rod 17 being fixedly installed at the bottom end of the first gear 3, the bottom end of the first threaded rod 17 passing through the top of the material storage tube 1 and extending to the inside of the material storage tube 1, a push plate 4 being threadedly sleeved on the outer surface of the first threaded rod 17, the outer surface of the push plate 4 being movably sleeved with the inside of the material storage tube 1, and the outer surfaces on both sides of the push plate 4 being movably connected with the inside of the limit groove 2;

[0029] A speed regulating mechanism, which is arranged at the top of the outer surfaces of the left and right sides of the storage tube 1;

[0030] Among them, the speed regulating mechanism includes a limit block 5, the number of the limit blocks 5 is two, the opposite ends of the two limit blocks 5 are respectively fixedly installed on the top ends of the outer surfaces of the left and right sides of the storage tube 1, and fixed blocks 6 are fixedly installed in front of the top ends of the two limit blocks 5. The fixed block 6 is movably sleeved with a stopper 7 inside. The two limit blocks 5 are movably connected with a moving block 8 inside. A spring 9 is fixedly installed on the outer surface of the moving block 8, and the other end of the spring 9 is fixedly connected to the outer surface of the storage tube 1. A rotating shaft 10 is movably sleeved inside the moving block 8. The number of the rotating shafts 10 is two, and the outer surfaces of the two rotating shafts 10 are movably connected to the outer surface of the stopper 7. The outer surfaces of the two rotating shafts 10 are respectively fixedly sleeved with a second gear 11 and a third gear 12.

[0031] When the first gear 3 drives the first threaded rod 17 to rotate, the first threaded rod 17 will drive the push plate 4 to move downward under the limit of the two limit grooves 2 to push the bone cement inside the storage tube 1. When the medical staff pulls the two blocks 7 to move forward at the same time, the outer surfaces of the two blocks 7 will release the blocking effect on the two rotating shafts 10. Due to the elastic force of the two springs 9, the two springs 9 will drive the two rotating shafts 10 to move toward each other through the two moving blocks 8. At this time, the second gear 11 and the third gear 12 will move toward each other under the drive of the two rotating shafts 10. When the outer surfaces of the second gear 11 and the third gear 12 contact the outer surface of the first gear 3, the first gear 3 will be in a meshing state with the second gear 11 and the third gear 12. Since the diameter of the second gear 11 is larger than that of the third gear 12, when the third gear 12 drives the first gear 3 to rotate, the rotation speed of the first gear 3 will be slower than that of the second gear 11 driving the first gear 3 to rotate, thereby realizing the function of adjusting the bone cement injection flow rate according to operational requirements.

[0032] The top ends of the two rotating shafts 10 are fixedly mounted with first rotating blocks 13 , and the top ends of the first rotating blocks 13 are fixedly mounted with round shafts 14 .

[0033] Due to the design of the first rotating block 13 and the circular shaft 14 , medical personnel can conveniently drive the two rotating shafts 10 to rotate.

[0034] A fixing plate 15 is fixedly installed at the top of the storage tube 1 , an arc block 16 is fixedly installed inside the fixing plate 15 , and an outer surface of the arc block 16 is movably connected to the inside of the top of the first gear 3 .

[0035] Due to the design of the arc block 16, the first gear 3 will be more stable when rotating.

[0036] The bottom of the storage tube 1 is movably sleeved with a puncture needle tube 19 , the top of the outer surface of the puncture needle tube 19 is fixedly sleeved with a round block 20 , and the top of the round block 20 is movably connected to the bottom of the storage tube 1 .

[0037] Since the interior of the puncture needle tube 19 is connected to the interior of the storage tube 1 , the bone cement in the storage tube 1 can be injected into the patient's body through the puncture needle tube 19 .

[0038] Among them, handles 18 are fixedly installed at the bottom ends of the left and right sides of the storage tube 1, and a fixed clamping block 21 is fixedly installed behind the bottom end of the storage tube 1. The outer surface of the fixed clamping block 21 is movably connected to the outer surface of the round block 20.

[0039] Due to the design of the two handles 18 , medical personnel can insert the puncture needle tube 19 into the patient's body by pushing the two handles 18 .

[0040] A square block 22 is fixedly installed in front of the bottom end of the storage tube 1 , a second threaded rod 23 is sleeved on the inner thread of the square block 22 , and a second rotating block 24 is fixedly installed on the front of the second threaded rod 23 .

[0041] Due to the design of the second rotating block 24, medical staff can drive the second threaded rod 23 to rotate through the second rotating block 24. Since the second threaded rod 23 is sleeved with the internal thread of the square block 22, when the second threaded rod 23 rotates, the second threaded rod 23 will move backward along the inside of the square block 22.

[0042] Among them, a moving clamp block 25 is movably connected to the front of the bottom end of the storage tube 1, and the inner part of the front side of the moving clamp block 25 is movably sleeved with the outer surface of the rear end of the second threaded rod 23.

[0043] When the second threaded rod 23 rotates, the moving clamp 25 will move driven by the second threaded rod 23. Since the top of the moving clamp 25 is movably connected to the bottom end of the storage tube 1, the moving clamp 25 will move backwards driven by the second threaded rod 23. Then, the moving clamp 25 will cooperate with the fixed clamp 21 to clamp and fix the round block 20 during the backward movement, thereby realizing the function of facilitating the installation and disassembly of the puncture needle tube 19.

[0044] The working principle and use process of this utility model:

[0045] First, the operator puts bone cement into the interior of the storage tube 1 through the bottom end of the storage tube 1, and then the operator inserts the top end of the puncture needle tube 19 into the bottom end of the storage tube 1. At this time, the top end of the round block 20 will be movably connected with the bottom end of the storage tube 1, and at the same time, the outer surface of the front side of the fixed clamping block 21 will be movably connected with the outer surface of the round block 20. At this time, the operator drives the second threaded rod 23 to rotate through the second rotating block 24. Since the outer surface of the second threaded rod 23 is sleeved with the internal thread of the square block 22, the second threaded rod 23 will move backward during the rotation. Since the top end of the moving clamping block 25 is movably connected with the bottom end of the storage tube 1, the second threaded rod 23 will drive the moving clamping block 25 to move backward. Then the moving clamping block 25 will cooperate with the fixed clamping block 21 during the backward movement to clamp and fix the round block 20, thereby realizing the function of convenient installation and disassembly of the puncture needle tube 19.

[0046] Then the operator pulls the two blocks 7 at the same time, and the two blocks 7 will move forward along the inside of the two fixed blocks 6 respectively. At this time, the two blocks 7 will release the blocking effect on the two rotating shafts 10 during the forward movement. Due to the elastic force of the two springs 9 and the limiting effect inside the two limit blocks 5, the two springs 9 will drive the two rotating shafts 10 to move toward each other through the two moving blocks 8. Then the two rotating shafts 10 will drive the second gear 11 and the third gear 12 to move toward each other. When the outer surfaces of the second gear 11 and the third gear 12 are in contact with the outer surface of the first gear 3, the first gear 3 will be in meshing state with the second gear 11 and the third gear 12. Since the diameter of the second gear 11 is larger than the third gear 12, when the third gear 12 drives the first gear 3 to rotate, the rotation speed of the first gear 3 will be slower than that of the second gear 11 driving the first gear 3 to rotate. When the first gear 3 rotates, the first gear 3 will drive the first threaded rod 17 to rotate. Due to the limiting effect of the two limiting grooves 2, the push plate 4 will move downward along the inside of the storage tube 1 driven by the first threaded rod 17, thereby pushing the bone cement inside the storage tube 1. Since the rotation speed of the first threaded rod 17 driven by the first gear 3 affects the downward movement speed of the push plate 4, the function of adjusting the bone cement injection flow rate according to operational requirements is realized.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] 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 speed-adjustable bone cement filler, characterized in that: Included are: A material storage tube (1), wherein both left and right sides of the material storage tube (1) are provided with limit grooves (2), the top of the material storage tube (1) is movably connected with a first gear (3), the bottom end of the first gear (3) is fixedly installed with a first threaded rod (17), the bottom end of the first threaded rod (17) passes through the top of the material storage tube (1) and extends into the inside of the material storage tube (1), the outer surface of the first threaded rod (17) is threadedly sleeved with a push plate (4), the outer surface of the push plate (4) is movably sleeved with the inside of the material storage tube (1), and the outer surfaces of the left and right sides of the push plate (4) are both movably connected with the inside of the limit groove (2); A speed regulating mechanism, the speed regulating mechanism being arranged at the top ends of the outer surfaces of the left and right sides of the storage tube (1); The speed regulating mechanism comprises a limit block (5), wherein the number of the limit blocks (5) is two, and the opposite ends of the two limit blocks (5) are respectively fixedly mounted on the top ends of the outer surfaces of the left and right sides of the storage tube (1), and a fixed block (6) is fixedly mounted in front of the top ends of the two limit blocks (5), and a stopper (7) is movably sleeved inside the fixed block (6). A moving block (8) is movably connected inside the two limit blocks (5), and a spring (9) is fixedly mounted on the outer surface of the moving block (8), and the other end of the spring (9) is fixedly connected to the outer surface of the storage tube (1), and a rotating shaft (10) is movably sleeved inside the moving block (8), and the number of the rotating shafts (10) is two, and the outer surfaces of the two rotating shafts (10) are movably connected to the outer surfaces of the stopper (7), and the outer surfaces of the two rotating shafts (10) are respectively fixedly sleeved with a second gear (11) and a third gear (12).

2. The speed-adjustable bone cement filler according to claim 1, characterized in that: A first rotating block (13) is fixedly mounted on the top of each of the two rotating shafts (10), and a round shaft (14) is fixedly mounted on the top of the first rotating block (13).

3. The speed-adjustable bone cement filler according to claim 1, characterized in that: A fixing plate (15) is fixedly mounted on the top of the storage tube (1), an arc block (16) is fixedly mounted inside the fixing plate (15), and the outer surface of the arc block (16) is movably connected to the inside of the top of the first gear (3).

4. The speed-adjustable bone cement filler according to claim 1, characterized in that: The bottom end of the storage tube (1) is movably sleeved with a puncture needle tube (19), the top end of the outer surface of the puncture needle tube (19) is fixedly sleeved with a round block (20), and the top end of the round block (20) is movably connected to the bottom end of the storage tube (1).

5. The speed-adjustable bone cement filler according to claim 1, characterized in that: Handles (18) are fixedly mounted at the bottom ends of both left and right sides of the storage tube (1), and a fixed clamping block (21) is fixedly mounted behind the bottom end of the storage tube (1), and the outer surface of the fixed clamping block (21) is movably connected to the outer surface of the round block (20).

6. The speed-adjustable bone cement filler according to claim 1, characterized in that: A square block (22) is fixedly mounted in front of the bottom end of the storage tube (1); a second threaded rod (23) is sleeved on the inner thread of the square block (22); and a second rotating block (24) is fixedly mounted on the front of the second threaded rod (23).

7. The speed-adjustable bone cement filler according to claim 1, characterized in that: A moving clamp block (25) is movably connected to the front of the bottom end of the storage tube (1), and the interior of the front of the moving clamp block (25) is movably sleeved with the outer surface of the rear end of the second threaded rod (23).

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