Composite bone defect filling agent detection tool

Abstract

The utility model belongs to the technical field of bone defect filling agent detection, and particularly relates to a composite bone defect filling agent detection tool which comprises a bottom plate, wherein a fixing frame is fixed at the top end of the bottom plate; hydraulic rods are fixed to the lower ends of the fixing frames. A pressurizing plate is fixed at the telescopic end of the hydraulic rod; telescopic rods are fixed to the positions, corresponding to the two ends of the pressurizing plate, of the fixing frame. The telescopic end of the telescopic rod is fixedly connected with the pressurizing plate; a plurality of fixing rods are uniformly fixed at the lower end of the pressurizing plate; contact blocks are fixed to the lower ends of the fixing rods. Through the matching structure design of the driving assembly and the clamping plates, the two clamping plates can be driven by the driving assembly to move towards the close test strip, so that the test strips are fixed through the matching of the clamping plates and the placing plate, the deviation of the test strips during testing is effectively reduced, the stability of the test strips is improved, and the test efficiency is improved. Meanwhile, through the structural design of a plurality of fixing seats, a plurality of test strips can be tested at the same time, and the working efficiency of the test is improved.

Description

Technical Field

[0001] This utility model belongs to the field of bone defect filling agent detection technology, specifically a composite bone defect filling agent detection tooling. Background Technology

[0002] Bone defect fillers are materials used to fill and repair bone defects caused by disease, trauma, or surgery. Depending on the material, bone defect fillers can be classified into several types, mainly including metallic, inorganic salt, allogeneic, animal-derived materials, organic polymers, and composite materials. Bone cement is a common filler material.

[0003] Bone cement is a filler, primarily composed of polymethyl methacrylate, used in hip and knee joint prostheses. Bone cement helps to evenly distribute stress between the prosthesis and bone, reducing adverse stress responses and preventing stress concentration. When testing the flexural strength of bone cement, the molded test strips are subjected to this test.

[0004] However, currently, when testing test strips, it is not possible to fix the test strips well, which can easily lead to deviation of the test strips during testing, resulting in deviation of the test data and affecting the experimental results. Therefore, in order to address the above problems, a testing fixture for composite bone defect fillers is proposed. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a composite bone defect filling agent testing tool.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A composite bone defect filling agent testing fixture of this utility model includes a base plate; a fixing frame is fixed to the top of the base plate; a hydraulic rod is fixed to the lower end of the fixing frame; a pressure plate is fixed to the telescopic end of the hydraulic rod; telescopic rods are fixed at positions corresponding to both ends of the fixing frame and the pressure plate; the telescopic ends of the telescopic rods are fixedly connected to the pressure plate; multiple fixing rods are evenly fixed to the lower end of the pressure plate; a contact block is fixed to the lower end of the fixing rod; a fixing plate is provided on one side of the top of the base plate; multiple fixing seats are fixed on the side of the fixing plate near the base plate and at positions corresponding to the contact blocks; a handle is fixed on the other side of the fixing plate; a placement plate is fixed at both ends of the fixing seat and on the sides close to each other; two clamping plates are respectively provided on both sides of the top of the placement plate; a driving assembly is provided on the inner side of the fixing seat and at positions corresponding to the clamping plates.

[0007] Preferably, the driving assembly includes a bidirectional screw; the bidirectional screw is laterally disposed on the inner side of the fixed seat and at a position corresponding to the clamping plate; the bidirectional screw is rotatably connected to the fixed seat; both ends of the bidirectional screw are threadedly connected to connecting seats; the connecting seats are slidably connected to the fixed seat; and the connecting seats are fixedly connected to the clamping plate.

[0008] Preferably, the drive assembly further includes a transmission rod; the transmission rod is disposed inside the transmission shaft; one end of the transmission rod extends to the inside of the fixed plate; a transmission assembly is disposed inside the fixed plate at a position corresponding to the transmission rod; the transmission rod is rotatably connected to the transmission shaft; both ends of the transmission rod are fixed with second drive bevel gears; both ends of the fixed base are vertically disposed with transmission shafts at positions corresponding to the second drive bevel gears; the transmission shaft is rotatably connected to the fixed base; a second drive bevel gear is fixed at a position corresponding to the second drive bevel gear on the transmission shaft; the second drive bevel gear meshes with a first drive bevel gear; a transmission bevel gear is fixed at the other end of the transmission shaft; a driven bevel gear is fixed at a position corresponding to the transmission bevel gear on the bidirectional screw; the driven bevel gear meshes with the transmission bevel gear.

[0009] Preferably, the transmission assembly includes a rotating rod; the rotating rod is disposed on the inner side of the fixed plate and at a position corresponding to the transmission rod; the rotating rod is rotatably connected to the fixed plate; a drive worm gear is fixed at the position corresponding to the transmission rod and the rotating rod; a drive worm is fixed at the position corresponding to the drive worm gear on the rotating rod; the drive worm and the drive worm gear are meshed together.

[0010] Preferably, one end of the rotating rod extends to the outer side of one end of the fixed plate; a drive knob is fixed to the end of the rotating rod located on the outer side of the fixed plate.

[0011] Preferably, a slider is fixed to the lower end of the fixed base; a groove is provided at the position of the base plate corresponding to the slider; the slider is slidably connected to the base plate through the groove; and a plug-in component is provided on the inner side of the end of the base plate near the fixed plate.

[0012] Preferably, the plug-in assembly includes a plug-in block; the plug-in block is disposed on the inner side of the base plate and at a position corresponding to the slider; the plug-in block is slidably connected to the base plate; a plug-in groove is provided at the position of the slider corresponding to the plug-in block; the plug-in block is plugged into the slider through the plug-in groove; a plug-in spring is fixed to the end of the plug-in block away from the slider; the end of the plug-in spring away from the plug-in block is fixedly connected to the base plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model provides a testing fixture for composite bone defect fillers. Through the cooperative structural design of the drive component and the clamping plate, the drive component can drive the two clamping plates to move towards the test strip, thereby fixing the test strip through the cooperation of the clamping plate and the placement plate. This effectively reduces the deviation of the test strip during testing and improves the stability of the test strip. At the same time, the structural design of multiple fixing seats allows multiple test strips to be tested simultaneously, improving the testing efficiency.

[0015] 2. This utility model provides a composite bone defect filling agent testing fixture. Through the cooperative structural design of the plug-in block and the plug-in spring, when the fixing seat is pulled out from the inside of the base plate, the plug-in block can be effectively connected to the slider to limit the slider, thereby preventing the slider and the fixing seat from moving out from the inside of the base plate and improving the stability of the slider. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the handle in this utility model;

[0019] Figure 3 This is a perspective view of the connector in this utility model;

[0020] Figure 4 This is a perspective view of the driving component in this utility model;

[0021] Figure 5 This is a perspective view of the plug-in component in this utility model.

[0022] Legend:

[0023] 1. Base plate; 2. Fixing frame; 3. Hydraulic rod; 4. Pressure plate; 5. Telescopic rod; 6. Fixing rod; 7. Contact block; 8. Fixing plate; 9. Fixing seat; 10. Slider; 11. Handle; 12. Placement plate; 13. Clamping plate; 14. Transmission rod; 15. Double-acting screw; 16. Driven bevel gear; 17. Transmission bevel gear; 18. Connecting seat; 19. Transmission shaft; 20. First drive bevel gear; 21. Second drive bevel gear; 22. Rotating rod; 23. Drive worm gear; 24. Drive worm wheel; 25. Drive knob; 26. Insertion block; 27. Insertion spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figures 1-5 This utility model provides a testing fixture for composite bone defect fillers, comprising a base plate 1; a fixing frame 2 is fixed to the top of the base plate 1; a hydraulic rod 3 is fixed to the lower end of the fixing frame 2; a pressure plate 4 is fixed to the telescopic end of the hydraulic rod 3; telescopic rods 5 are fixed at corresponding positions at both ends of the fixing frame 2 and the pressure plate 4; the telescopic ends of the telescopic rods 5 are fixedly connected to the pressure plate 4; multiple fixing rods 6 are evenly fixed to the lower end of the pressure plate 4; contact blocks 7 are fixed to the lower ends of the fixing rods 6; a fixing plate 8 is provided on one side of the top of the base plate 1; multiple fixing seats 9 are fixed on the side of the fixing plate 8 near the base plate 1 and at positions corresponding to the contact blocks 7; a handle 11 is fixed to the other side of the fixing plate 8; placement plates 12 are fixed at both ends of the fixing seats 9 and on their adjacent sides; two clamping plates 13 are respectively provided on both sides of the top of the placement plate 12; a drive assembly is provided on the inner side of the fixing seat 9 at a position corresponding to the clamping plates 13. During operation, the handle 11 is pulled first. The handle 11 moves the fixing seat 9 from the inside of the base plate 1 via the fixing plate 8. Then, the two ends of the test strip are placed at the top of the two placement plates 12 respectively. The clamping plate 13 is then moved by the drive assembly to clamp and fix the test strip. The fixing seat 9 is then moved to the inside of the base plate 1. The hydraulic rod 3 is then activated, causing the pressure plate 4 to move. When the pressure plate 4 moves, the fixing rod 6 and the contact block 7 move towards the test strip. The test strip is then subjected to bending pressure test through the contact block 7. This step, through the cooperative structure design of the drive assembly and the clamping plate 13, allows the two clamping plates 13 to move towards the test strip, thereby fixing the test strip through the cooperation of the clamping plate 13 and the placement plate 12. This effectively reduces the deviation of the test strip during the test and improves the stability of the test strip. At the same time, the structure design of multiple fixing seats 9 allows multiple test strips to be tested at the same time, improving the efficiency of the test.

[0027] Furthermore, such as Figure 3 and Figure 4As shown, the driving assembly includes a bidirectional screw 15; the bidirectional screw 15 is laterally disposed inside the fixed base 9 and at a position corresponding to the clamping plate 13; the bidirectional screw 15 is rotatably connected to the fixed base 9; both ends of the bidirectional screw 15 are threadedly connected to connecting seats 18; the connecting seats 18 are slidably connected to the fixed base 9; and the connecting seats 18 are fixedly connected to the clamping plate 13. During operation, when the bidirectional screw 15 rotates, it drives the two connecting seats 18 threadedly connected to it to move towards or away from each other. This movement of the connecting seats 18 drives the clamping plate 13 to move simultaneously, thereby clamping and fixing the test strip through the clamping plate 13. This step, through the structural design of the bidirectional screw 15 and the connecting seats 18, allows the rotation of the bidirectional screw 15 to drive the movement of the connecting seats 18, which in turn drives the movement of the clamping plate 13, thus clamping and fixing the test strip through the movement of the clamping plate 13.

[0028] Furthermore, such as Figure 4 As shown, the drive assembly also includes a transmission rod 14; the transmission rod 14 is disposed inside the transmission shaft 19; one end of the transmission rod 14 extends to the inside of the fixed plate 8; a transmission assembly is disposed inside the fixed plate 8 at a position corresponding to the transmission rod 14; the transmission rod 14 is rotatably connected to the transmission shaft 19; a second drive bevel gear 21 is fixed at both ends of the transmission rod 14; the transmission shaft 19 is vertically disposed at both ends of the fixed seat 9 at positions corresponding to the second drive bevel gear 21; the transmission shaft 19 is rotatably connected to the fixed seat 9; a second drive bevel gear 21 is fixed at a position corresponding to the second drive bevel gear 21 on the transmission shaft 19; the second drive bevel gear 21 is meshed with a first drive bevel gear 20; a transmission bevel gear 17 is fixed at the other end of the transmission shaft 19; a driven bevel gear 16 is fixed at a position corresponding to the transmission bevel gear 17 on the bidirectional screw 15; the driven bevel gear 16 is meshed with the transmission bevel gear 17. During operation, when the transmission rod 14 rotates, it drives the second drive bevel gear 21 to rotate. When the second drive bevel gear 21 rotates, it drives the transmission shaft 19 to rotate simultaneously through the first drive bevel gear 20 meshing with it. When the transmission shaft 19 rotates, it drives the transmission bevel gear 17 to rotate simultaneously. When the transmission bevel gear 17 rotates, it drives the bidirectional screw 15 to rotate simultaneously through the driven bevel gear 16 meshing with it. This step, through the cooperative structure design of the driven bevel gear 16, the transmission bevel gear 17, the first drive bevel gear 20, and the second drive bevel gear 21, enables the transmission rod 14 to rotate simultaneously and drive the bidirectional screw 15 to rotate simultaneously.

[0029] like Figure 4As shown, the transmission assembly includes a rotating rod 22; the rotating rod 22 is disposed on the inner side of the fixed plate 8 and at a position corresponding to the transmission rod 14; the rotating rod 22 is rotatably connected to the fixed plate 8; a drive worm gear 24 is fixed at the position corresponding to the rotating rod 22 on the transmission rod 14; a drive worm 23 is fixed at the position corresponding to the drive worm gear 24 on the rotating rod 22; the drive worm 23 is meshed with the drive worm gear 24. During operation, when the rotating rod 22 rotates, it drives the drive worm 23 fixed to it to rotate. When the drive worm 23 rotates, it drives the transmission rod 14 fixed to the drive worm gear 24 to rotate simultaneously through the drive worm gear 24 meshing with it. This step, through the structural design of the cooperation between the drive worm 23 and the drive worm gear 24, enables the transmission rod 14 to rotate simultaneously when the rotating rod 22 rotates.

[0030] like Figure 4 As shown, one end of the rotating rod 22 extends to the outer side of one end of the fixed plate 8; a drive knob 25 is fixed to the outer end of the rotating rod 22 located on the fixed plate 8. During operation, when it is necessary to clamp the test strip, the drive knob 25 is first rotated to drive the rotating rod 22 to rotate. This step makes it convenient for the operator to rotate the rotating rod 22 by rotating the drive knob 25, thus improving the ease of operation.

[0031] like Figure 5 As shown, a slider 10 is fixed to the lower end of the fixed base 9; a groove is provided at the position corresponding to the slider 10 on the base plate 1; the slider 10 is slidably connected to the base plate 1 through the groove; a plug-in assembly is provided on the inner side of the end of the base plate 1 near the fixed plate 8. During operation, when the fixed base 9 moves, it can drive the slider 10 to slide along the groove. This step, through the structural design of the slider 10, limits the fixed base 9, thereby preventing the fixed base 9 from sliding left and right, and improving the stability of the fixed base 9.

[0032] like Figure 5As shown, the plug-in assembly includes a plug-in block 26; the plug-in block 26 is disposed on the inner side of the base plate 1 and at a position corresponding to the slider 10; the plug-in block 26 is slidably connected to the base plate 1; a plug-in groove is provided at the position corresponding to the plug-in block 26 on the slider 10; the plug-in block 26 is plugged into and connected to the slider 10 through the plug-in groove; a plug-in spring 27 is fixed at the end of the plug-in block 26 away from the slider 10; the end of the plug-in spring 27 away from the plug-in block 26 is fixedly connected to the base plate 1. During operation, when the slider 10 moves to the position corresponding to the insertion slot and the insertion block 26, the insertion block 26 is pushed into the insertion slot under the elastic action of the insertion spring 27, thereby limiting the slider 10. This step can be achieved through the cooperative structure design of the insertion block 26 and the insertion spring 27, so that when the fixed seat 9 is pulled out from the inside of the base plate 1, the insertion block 26 can be effectively connected to the slider 10 to limit the slider 10, thereby preventing the slider 10 and the fixed seat 9 from moving out from the inside of the base plate 1 and improving the stability of the slider 10.

[0033] Working principle: During operation, firstly, by pulling the handle 11, the handle 11 moves the fixed seat 9 out of the inner side of the base plate 1 via the fixed plate 8. When the fixed seat 9 moves, it drives the slider 10 to slide along the groove. When the slider 10 moves to the position corresponding to the insertion slot and the insertion block 26, the insertion block 26 is pushed into the insertion slot by the elastic action of the insertion spring 27, thus completing the limiting of the slider 10. Then, the two ends of the test strip are placed at the top positions of the two placement plates 12 respectively. Then, the clamping plate 13 is moved by the drive assembly, thereby clamping and fixing the test strip by the movement of the clamping plate 13. When it is necessary to clamp the test strip, firstly, by rotating the drive knob 25, the drive knob 25 drives the rotating rod 22 to rotate. When the rotating rod 22 rotates, it drives the drive worm 23 fixed to it to rotate. When the drive worm 23 rotates, it drives the transmission rod 14 fixed to the drive worm wheel 24 to rotate simultaneously through the drive worm wheel 24 meshing with it. When the transmission rod 14 rotates, The second drive bevel gear 21 is driven to rotate. When the second drive bevel gear 21 rotates, it drives the transmission shaft 19 to rotate simultaneously through the first drive bevel gear 20 meshing with it. When the transmission shaft 19 rotates, it drives the transmission bevel gear 17 to rotate simultaneously. When the transmission bevel gear 17 rotates, it drives the bidirectional screw 15 to rotate simultaneously through the driven bevel gear 16 meshing with it. When the bidirectional screw 15 rotates, it drives the two connecting seats 18 threaded to it to move towards each other or away from each other. Thus, when the connecting seats 18 move, they can drive the clamping plate 13 to move simultaneously, thereby clamping and fixing the test strip through the clamping plate 13. Then, the fixing seat 9 is moved to the inside of the base plate 1. After that, the hydraulic rod 3 is activated, causing the hydraulic rod 3 to drive the pressure plate 4 to move. When the pressure plate 4 moves, it drives the fixing rod 6 and the contact block 7 to move simultaneously towards the test strip, thereby performing the bending pressure test on the test strip through the contact block 7.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A testing fixture for composite bone defect fillers, comprising a base plate (1), characterized in that: A fixing frame (2) is fixed to the top of the base plate (1); a hydraulic rod (3) is fixed to the lower end of the fixing frame (2); a pressure plate (4) is fixed to the telescopic end of the hydraulic rod (3); telescopic rods (5) are fixed at corresponding positions on both ends of the fixing frame (2) and the pressure plate (4); the telescopic ends of the telescopic rods (5) are fixedly connected to the pressure plate (4); a plurality of fixing rods (6) are evenly fixed to the lower end of the pressure plate (4); a contact block (7) is fixed to the lower end of the fixing rods (6); the top of the base plate (1) A fixing plate (8) is provided on one side; a plurality of fixing seats (9) are fixed on the side of the fixing plate (8) close to the bottom plate (1) and at the position corresponding to the contact block (7); a handle (11) is fixed on the other side of the fixing plate (8); a placement plate (12) is fixed on both ends of the fixing seat (9) and on the side close to each other; two clamping plates (13) are respectively provided on both sides of the top of the placement plate (12); a driving component is provided on the inner side of the fixing seat (9) and at the position corresponding to the clamping plate (13).

2. The composite bone defect filling agent testing fixture as described in claim 1, characterized in that: The drive assembly includes a bidirectional screw (15); the bidirectional screw (15) is laterally disposed on the inner side of the fixed seat (9) and at a position corresponding to the clamping plate (13); the bidirectional screw (15) is rotatably connected to the fixed seat (9); both ends of the bidirectional screw (15) are threadedly connected to connecting seats (18); the connecting seats (18) are slidably connected to the fixed seat (9); the connecting seats (18) are fixedly connected to the clamping plate (13).

3. The composite bone defect filling agent testing fixture as described in claim 2, characterized in that: The drive assembly also includes a transmission rod (14); the transmission rod (14) is disposed inside the transmission shaft (19); one end of the transmission rod (14) extends to the inside of the fixing plate (8); a transmission assembly is disposed inside the fixing plate (8) at a position corresponding to the transmission rod (14); the transmission rod (14) is rotatably connected to the transmission shaft (19); a second drive bevel gear (21) is fixed at both ends of the transmission rod (14); a transmission shaft is vertically disposed at both ends of the fixing seat (9) at a position corresponding to the second drive bevel gear (21). 19); The drive shaft (19) is rotatably connected to the fixed seat (9); The second drive bevel gear (21) is fixed at the position corresponding to the second drive bevel gear (21) on the drive shaft (19); The second drive bevel gear (21) is meshed with the first drive bevel gear (20); The other end of the drive shaft (19) is fixed with a drive bevel gear (17); The driven bevel gear (16) is fixed at the position corresponding to the drive bevel gear (17) on the bidirectional screw (15); The driven bevel gear (16) is meshed with the drive bevel gear (17).

4. The composite bone defect filling agent testing fixture as described in claim 3, characterized in that: The transmission assembly includes a rotating rod (22); the rotating rod (22) is disposed on the inner side of the fixed plate (8) and at a position corresponding to the transmission rod (14); the rotating rod (22) is rotatably connected to the fixed plate (8); a drive worm gear (24) is fixed at the position corresponding to the rotating rod (22) on the transmission rod (14); a drive worm (23) is fixed at the position corresponding to the drive worm gear (24) on the rotating rod (22); the drive worm (23) is meshed with the drive worm gear (24).

5. The composite bone defect filling agent testing fixture as described in claim 4, characterized in that: One end of the rotating rod (22) extends to the outer side of one end of the fixed plate (8); a drive knob (25) is fixed to the end of the rotating rod (22) located on the outer side of the fixed plate (8).

6. The composite bone defect filling agent testing fixture as described in claim 1, characterized in that: The lower end of the fixed base (9) is fixed with a slider (10); the base plate (1) is provided with a groove at the position corresponding to the slider (10); the slider (10) is slidably connected to the base plate (1) through the groove; a plug-in component is provided on the inner side of the end of the base plate (1) near the fixed plate (8).

7. The composite bone defect filling agent testing fixture as described in claim 6, characterized in that: The plug-in assembly includes a plug-in block (26); the plug-in block (26) is disposed on the inner side of the base plate (1) and at a position corresponding to the slider (10); the plug-in block (26) is slidably connected to the base plate (1); The slider (10) has a slot at the position corresponding to the plug block (26); the plug block (26) is plugged into the slider (10) through the slot; a plug spring (27) is fixed at the end of the plug block (26) away from the slider (10); the end of the plug spring (27) away from the plug block (26) is fixedly connected to the base plate (1).

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