Compression resistance detection device for osteogenic activity nHA / SF composite bone defect repair material

Abstract

The utility model belongs to the technical field of composite bone defect repair materials, and particularly relates to an osteogenic activity nHA / SF composite bone defect repair material compression resistance detection device which comprises a detection frame, and the bottom end of the inner side of the detection frame is fixedly connected with a detection base; a stretching assembly; the pressure sensor is arranged at a position on one side of the pressure detection seat; the stretching assembly is used in cooperation with the detection base and the detection pressure base. A positioning assembly; the detection assembly is arranged at one end of the detection pressure seat and corresponds to the stretching assembly; through the structural matching design of the detection base, the detection pressure base and the stretching assembly, after the bottom end of the bone repair material is fixed to the detection base, the stretching assembly is adjusted to the position below the detection pressure base, and then the stretching assembly is fixed to the top end of the bone repair material; and the detection pressure seat is moved upwards, so that the detection of the stretchability of the bone repair material is facilitated, and the detection diversity of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to composite bone defect repair material technical field, specifically is a kind of osteogenic activity nHA / SF composite bone defect repair material compression detection device. BACKGROUND

[0002] nHA / SF composite bone defect repair material is a kind of bone repair material combining the advantages of nano-hydroxyapatite (nHA) and silk fibroin (SF), nHA has good biocompatibility, biological activity and bone conduction, but brittleness, low intensity;And SF is widely used in clinical application as FDA certified bio-safety material.

[0003] The compression detection device for detecting bone repair material in the prior art is a special equipment for testing the compression resistance of composite bone material, which has high-precision load sensor and measurement system, and can accurately measure the mechanical properties of composite bone material during compression, such as compression strength, test force resolution, etc.

[0004] The existing compression detection equipment can only perform simple compression detection on bone repair material, and various detections are required due to the particularity of bone repair material, and the existing compression device has single function and poor use effect, therefore, the present application provides a kind of osteogenic activity nHA / SF composite bone defect repair material compression detection device for solving the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the deficiencies of the prior art, solve the problems that the existing compression detection equipment can only perform simple compression detection on bone repair material, and various detections are required due to the particularity of bone repair material, and the existing compression device has single function and poor use effect, the present application provides a kind of osteogenic activity nHA / SF composite bone defect repair material compression detection device.

[0006] The utility model solves the technical scheme that the utility model discloses a kind of osteogenic activity nHA / SF composite bone defect repair material compression detection device, including detection frame, the bottom end fixedly connected with detection base in the inside of detection frame;The top of the inside of detection frame is fixedly connected with hydraulic cylinder;The inside of hydraulic cylinder is provided with hydraulic column;The bottom end of hydraulic column is fixedly connected with detection pressure seat;

[0007] Stretching assembly;It is arranged at the position of one side of the detection pressure seat;The stretching assembly is used to cooperate with the detection base and detection pressure seat;

[0008] Positioning assembly;It is arranged at the position corresponding to stretching assembly in one end of the detection pressure seat;The positioning assembly is used to cooperate with the stretching assembly and detection pressure seat.

[0009] Preferably, the stretching assembly comprises a stretching frame, a fixed column, a fixed sleeve and a stretching sleeve; one side of the detection pressure seat is rotationally connected with the stretching frame; the center position of the stretching frame is fixedly connected with the fixed column; the end of the fixed column away from the detection pressure seat is fixedly connected with the fixed sleeve; the inner side of the fixed sleeve is fixedly connected with the stretching sleeve.

[0010] Preferably, the stretching assembly further comprises an annular rack column, a fixed block, a clamping column, a clamping gear, a clamping plate and a clamping claw; the bottom end of the inner side of the stretching sleeve is slidingly connected with the annular rack column; the two sides of the bottom end of the stretching sleeve are fixedly connected with the fixed block; the inner side of the fixed block is rotationally connected with the clamping column; the ring side of the clamping column located on the inner side of the fixed block is fixedly connected with the clamping gear; the clamping gear is meshingly connected with the annular rack column; the end of the clamping column is fixedly connected with the clamping plate; the bottom end of the clamping plate is fixedly connected with the clamping claw.

[0011] Preferably, the stretching assembly further comprises a displacement rack, a transmission column, a transmission gear and a servo motor; the top end of the annular rack column is fixedly connected with the displacement rack; the top end of the fixed sleeve and the position corresponding to the displacement rack are rotationally connected with the transmission column; the ring side of the transmission column is fixedly connected with the transmission gear; the displacement rack is meshingly connected with the transmission gear; one side of the fixed sleeve is fixedly connected with the servo motor; the output end of the servo motor is fixedly connected with the transmission column.

[0012] Preferably, the positioning assembly comprises a positioning hollow column, a positioning frame, a positioning column and a positioning spring; one side of the detection pressure seat is fixedly connected with the positioning hollow column; one side of the stretching frame and the position corresponding to the positioning hollow column are fixedly connected with the positioning frame; the inner side of the positioning frame is slidingly connected with the positioning column; one end of the positioning column close to the detection pressure seat is insertedly connected with the positioning hollow column through the stretching frame; the ring side of the positioning column is provided with the positioning spring; one end of the positioning spring is fixedly connected with the stretching frame; the other side of the positioning spring is fixedly connected with the positioning frame.

[0013] Preferably, the two sides of the top end of the detection base are fixedly connected with the clamping seats; the clamping screw is rotationally connected between the clamping seats on one side of the detection base; the sliding column is fixedly connected between the clamping seats on the other side of the detection base; the two ends of the clamping screw are threadedly connected with the fixed plates; the end of the fixed plate away from the clamping screw is slidingly connected with the sliding column.

[0014] Preferably, one side of the clamping seat corresponding to the clamping screw is rotationally connected with the handle; the handle is fixedly connected with the clamping screw

[0015] The utility model discloses beneficial effects:

[0016] This invention provides a compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material. Through the structural design of the testing base, the testing pressure seat, and the tensile component, the bottom end of the bone repair material is fixed to the testing base. After the tensile component is adjusted to a position below the testing pressure seat, it is fixed to the top end of the bone repair material. Then, the testing pressure seat is moved upward to facilitate the tensile strength testing of the bone repair material and improve the versatility of the device's testing capabilities.

[0017] This invention provides a compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material. Through the structural design of positioning columns and positioning hollow columns, it is convenient to limit the device on the testing pressure seat when the tensioning component is not used, so as to prevent it from affecting the testing base and the testing pressure seat to perform compressive strength testing on the bone repair material. Attached Figure Description

[0018] 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:

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a perspective view of the tensioning component in this utility model;

[0021] Figure 3 This is a perspective view of the stretching sleeve and clamping gripper in this utility model;

[0022] Figure 4 This is a perspective view of the fixing plate in this utility model.

[0023] Legend:

[0024] 1. Testing frame; 2. Testing base; 3. Hydraulic cylinder; 4. Hydraulic column; 5. Testing pressure seat; 6. Tension frame; 7. Fixing column; 8. Fixing sleeve; 9. Tension sleeve; 10. Ring rack column; 11. Fixing block; 12. Clamping column; 13. Clamping gear; 14. Clamping plate; 15. Clamping gripper; 16. Displacement rack; 17. Transmission column; 18. Transmission gear; 19. Servo motor; 20. Hollow positioning column; 21. Positioning frame; 22. Positioning column; 23. Positioning spring; 24. Clamping seat; 25. Clamping screw; 26. Sliding column; 27. Fixing plate; 28. Handle. Detailed Implementation

[0025] 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.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-4 This utility model provides a compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material, including a testing frame 1, a testing base 2 fixedly connected to the bottom of the inner side of the testing frame 1; a hydraulic cylinder 3 fixedly connected to the top of the inner side of the testing frame 1; a hydraulic column 4 provided inside the hydraulic cylinder 3; and a testing pressure seat 5 fixedly connected to the bottom of the hydraulic column 4.

[0028] A tensioning assembly is positioned on one side of the detection pressure seat 5; the tensioning assembly is used in conjunction with the detection base 2 and the detection pressure seat 5.

[0029] A positioning component is provided, positioned at one end of the testing pressure seat 5 and corresponding to the tensioning component. This positioning component works in conjunction with the tensioning component and the testing pressure seat 5. During operation, when testing the bone repair material, the bottom end of the bone repair material is fixed to the testing base 2. Then, the positioning component releases the tensioning component's restriction. The tensioning component is adjusted to a position below the testing pressure seat 5 and fixed to the top end of the bone repair material. The testing pressure seat 5 is then moved upwards to facilitate tensile testing of the bone repair material, thus increasing the versatility of the device's testing capabilities.

[0030] like Figure 2 As shown, the tensioning assembly includes a tensioning frame 6, a fixing column 7, a fixing sleeve 8, and a tensioning sleeve 9. The tensioning frame 6 is rotatably connected to one side of the pressure detection seat 5. The fixing column 7 is fixedly connected to the center of the tensioning frame 6. The fixing sleeve 8 is fixedly connected to the end of the fixing column 7 away from the pressure detection seat 5. The tensioning sleeve 9 is fixedly connected to the inner side of the fixing sleeve 8. During operation, the tensioning frame 6 allows for convenient adjustment of the overall position of the tensioning assembly relative to the pressure detection seat 5, improving the ease of use of the tensioning assembly.

[0031] like Figure 3As shown, the stretching assembly further includes an annular rack column 10, a fixing block 11, a clamping column 12, a clamping gear 13, a clamping plate 14, and a clamping claw 15; the annular rack column 10 is slidably connected to the bottom end of the inner side of the stretching sleeve 9; the fixing blocks 11 are fixedly connected to both sides of the bottom end of the stretching sleeve 9; the clamping column 12 is rotatably connected to the inner side of the fixing block 11; the clamping gear 13 is fixedly connected to the annular rack column 12 located on the annular side of the inner side of the fixing block 11; the clamping gear 13 is meshed with the annular rack column 10; the clamping plate 14 is fixedly connected to the end of the clamping column 12; and the clamping claw 15 is fixedly connected to the bottom end of the clamping plate 14. During operation, after the tensioning assembly is adjusted to the position under the detection pressure seat 5 by the tensioning frame 6, it moves downward, thereby causing the ring rack column 10 to drive the clamping gear 13 to rotate. In turn, the clamping gear 13 drives the clamping plate 14 and the clamping claw 15 to clamp the upper part of the bone repair material through the clamping column 12.

[0032] like Figure 2 As shown, the stretching assembly further includes a displacement rack 16, a transmission column 17, a transmission gear 18, and a servo motor 19. The top end of the annular rack column 10 is fixedly connected to the displacement rack 16. The top end of the fixed sleeve 8, corresponding to the displacement rack 16, is rotatably connected to the transmission column 17. The annular side of the transmission column 17 is fixedly connected to the transmission gear 18. The displacement rack 16 meshes with the transmission gear 18. One side of the fixed sleeve 8 is fixedly connected to the servo motor 19. The output end of the servo motor 19 is fixedly connected to the transmission column 17. During operation, when it is necessary to drive the annular rack column 10 to move within the stretching sleeve 9, the servo motor 19 is activated. The output end of the servo motor 19 then drives the transmission column 17 and the transmission gear 18 to rotate. The transmission gear 18 then drives the displacement rack 16 to slide up and down within the stretching sleeve 9, thus facilitating the movement of the annular rack column 10 via the displacement rack 16.

[0033] like Figure 2As shown, the positioning assembly includes a positioning hollow column 20, a positioning frame 21, a positioning column 22, and a positioning spring 23; the positioning hollow column 20 is fixedly connected to one side of the pressure detection seat 5; the positioning frame 21 is fixedly connected to one side of the tension frame 6 at a position corresponding to the positioning hollow column 20; the positioning column 22 is slidably connected to the inner side of the positioning frame 21; one end of the positioning column 22 near the pressure detection seat 5 passes through the tension frame 6 and is inserted into the positioning hollow column 20; a positioning spring 23 is provided on the circumferential side of the positioning column 22; one end of the positioning spring 23 is fixedly connected to the tension frame 6; the other side of the positioning spring 23 is fixedly connected to the positioning frame 21. During operation, when it is necessary to limit the bone repair material, the positioning post 22 is aligned with the positioning hollow post 20, and then the elasticity of the positioning spring 23 brings the positioning post 22 into the positioning hollow post 20, thereby positioning the tensioning component. This allows the tensioning component to be limited on the detection pressure seat 5 when not in use, preventing it from affecting the detection base 2 and the detection pressure seat 5 in performing compressive strength testing on the bone repair material.

[0034] like Figure 4 As shown, clamping seats 24 are fixedly connected to both sides of the top of the detection base 2; a clamping screw 25 is rotatably connected between the clamping seats 24 on one side of the detection base 2; a sliding column 26 is fixedly connected between the clamping seats 24 on the other side of the detection base 2; a fixing plate 27 is threaded to both ends of the clamping screw 25; the end of the fixing plate 27 away from the clamping screw 25 is slidably connected to the sliding column 26. During operation, the bottom of the bone repair material is placed between the two fixing plates 27, and then the clamping screw 25 is rotated, causing the clamping screw 25 to move relative to the two fixing plates 27, thereby clamping the bone repair material for subsequent testing.

[0035] like Figure 4 As shown, a handle 28 is rotatably connected to one side of the clamping seat 24 corresponding to the clamping screw 25; the handle 28 is fixedly connected to the clamping screw 25. During operation, the clamping screw 25 can be easily rotated via the handle 28.

[0036] Working Principle: When testing bone repair materials, the bottom end of the material is fixed to the testing base 2. Then, the positioning component releases the limit on the stretching component. After adjusting the stretching component to the position under the testing pressure seat 5, it is fixed to the top of the bone repair material. The testing pressure seat 5 is then moved upwards to facilitate tensile testing of the bone repair material, increasing the versatility of the device's testing capabilities. The stretching frame 6 allows for easy adjustment of the position between the stretching component and the testing pressure seat 5, improving the ease of use. When the stretching component is adjusted to the position under the testing pressure seat 5 via the stretching frame 6, it moves downwards, causing the annular rack column 10 to drive the clamping gear 13 to rotate. The clamping gear 13, through the clamping column 12, drives the clamping plate 14 and the clamping gripper 15 to clamp the upper part of the bone repair material. When it is necessary to drive the annular rack column 10 to move within the stretching sleeve 9, the servo motor 19 is activated. The output of the servo motor 19 drives the transmission column 17 and the transmission gear 18 to rotate. The transmission gear 18 then drives the displacement rack 16 to slide up and down inside the tension sleeve 9, which facilitates the movement of the annular rack column 10 by the displacement rack 16. When it is necessary to limit the bone repair material, the positioning column 22 is aligned with the positioning hollow column 20, and the positioning spring 23 brings the positioning column 22 into the positioning hollow column 20, thereby positioning the tensioning component. When the tensioning component is not in use, it can be limited on the detection pressure seat 5 to prevent it from affecting the detection base 2 and the detection pressure seat 5 to perform compressive strength testing on the bone repair material. The bottom of the bone repair material is placed between the two fixed plates 27, and the clamping screw 25 is rotated to move the two fixed plates 27 relative to each other, thereby clamping the bone repair material for subsequent testing. The handle 28 makes it easy to rotate the clamping screw 25.

[0037] 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 compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material, comprising a testing frame (1), characterized in that: The bottom of the inner side of the testing frame (1) is fixedly connected to the testing base (2); the top of the inner side of the testing frame (1) is fixedly connected to the hydraulic cylinder (3); the inner side of the hydraulic cylinder (3) is provided with a hydraulic column (4); the bottom of the hydraulic column (4) is fixedly connected to the testing pressure seat (5). A tensioning assembly is disposed on one side of the detection pressure seat (5); the tensioning assembly is used in conjunction with the detection base (2) and the detection pressure seat (5); Positioning components; It is positioned at one end of the pressure detection seat (5) and at a position corresponding to the tensioning component; the positioning component is used in conjunction with the tensioning component and the pressure detection seat (5).

2. The compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material as described in claim 1, characterized in that: The tensioning assembly includes a tensioning frame (6), a fixing column (7), a fixing sleeve (8), and a tensioning sleeve (9); the tensioning frame (6) is rotatably connected to one side of the detection pressure seat (5); the fixing column (7) is fixedly connected to the center of the tensioning frame (6); the fixing sleeve (8) is fixedly connected to the end of the fixing column (7) away from the detection pressure seat (5); and the tensioning sleeve (9) is fixedly connected to the inner side of the fixing sleeve (8).

3. The compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material as described in claim 2, characterized in that: The stretching assembly further includes an annular rack column (10), a fixing block (11), a clamping column (12), a clamping gear (13), a clamping plate (14), and a clamping claw (15); the annular rack column (10) is slidably connected to the bottom end of the inner side of the stretching sleeve (9); the fixing blocks (11) are fixedly connected to both sides of the bottom end of the stretching sleeve (9); the clamping column (12) is rotatably connected to the inner side of the fixing block (11); the clamping gear (13) is fixedly connected to the annular side of the clamping column (12) located inside the fixing block (11); the clamping gear (13) is meshed with the annular rack column (10); the clamping plate (14) is fixedly connected to the end of the clamping column (12); and the clamping claw (15) is fixedly connected to the bottom end of the clamping plate (14).

4. The compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material as described in claim 3, characterized in that: The stretching assembly also includes a displacement rack (16), a transmission column (17), a transmission gear (18), and a servo motor (19); the top end of the annular rack column (10) is fixedly connected to the displacement rack (16); the top end of the fixed sleeve (8) and the position corresponding to the displacement rack (16) are rotatably connected to the transmission column (17); the annular side of the transmission column (17) is fixedly connected to the transmission gear (18); the displacement rack (16) is meshed with the transmission gear (18); one side of the fixed sleeve (8) is fixedly connected to the servo motor (19); the output end of the servo motor (19) is fixedly connected to the transmission column (17).

5. The compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material as described in claim 2, characterized in that: The positioning assembly includes a positioning hollow column (20), a positioning frame (21), a positioning column (22), and a positioning spring (23); the positioning hollow column (20) is fixedly connected to one side of the detection pressure seat (5); the positioning frame (21) is fixedly connected to one side of the tension frame (6) at a position corresponding to the positioning hollow column (20); the positioning column (22) is slidably connected to the inner side of the positioning frame (21); one end of the positioning column (22) near the detection pressure seat (5) passes through the tension frame (6) and is inserted into the positioning hollow column (20); the positioning spring (23) is provided on the ring side of the positioning column (22); one end of the positioning spring (23) is fixedly connected to the tension frame (6); the other side of the positioning spring (23) is fixedly connected to the positioning frame (21).

6. The compressive strength testing device for an osteogenic active nHA / SF composite bone defect repair material as described in claim 1, characterized in that: Both sides of the top of the detection base (2) are fixedly connected to clamping seats (24); clamping screws (25) are rotatably connected between the clamping seats (24) on one side of the detection base (2); sliding columns (26) are fixedly connected between the clamping seats (24) on the other side of the detection base (2); fixing plates (27) are threaded to both ends of the clamping screws (25); the end of the fixing plate (27) away from the clamping screws (25) is slidably connected to the sliding columns (26).

7. The compressive strength testing device for osteogenic active nHA / SF composite bone defect repair material as described in claim 6, characterized in that: A handle (28) is rotatably connected to one side of the clamping seat (24) corresponding to the clamping screw (25); the handle (28) is fixedly connected to the clamping screw (25).

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