Performance detection device for 3D printing hydrogel cartilage scaffold

Abstract

The utility model discloses a 3D printing hydrogel cartilage scaffold performance detection device, and relates to the technical field of hydrogel cartilage scaffold performance detection, the 3D printing hydrogel cartilage scaffold performance detection device comprises a performance detection device main body, the top of the performance detection device main body is uniformly provided with three storage grooves, a silica gel block is detachably mounted at the bottom of the inner wall of a storage groove formed in the performance detection device body, a working plate is detachably mounted at the top of the silica gel block, and a hydraulic push rod is detachably mounted on one side of the top of the working plate. According to the 3D printing hydrogel cartilage scaffold performance detection device, the arranged clamping plates drive the silica gel pads to be matched with the clamping seats to clamp to-be-detected printing hydrogel cartilage scaffolds of different sizes, the application range is wider, and the practicability is higher; the 3D printing hydrogel cartilage scaffold is fully detected by utilizing the reciprocating motion of the hydraulic push rod, the detection result is more reliable, and the hydraulic push rod on the working plate is damped through the cooperation of the arranged silica gel block and the fixed socket and the insertion rod.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogel cartilage scaffold performance detection, and in particular to a 3D printed hydrogel cartilage scaffold performance detection device. Background Art

[0002] At present, cartilage scaffolds printed with hydrogel as raw material using 3D printing technology are widely used in the field of orthopedics. They can assist in repairing cartilage in patients' joints and other parts of the body. 3D printed hydrogel cartilage scaffolds need to undergo performance testing before being put into use. The testing mainly includes X-ray machines, scanning electron microscopes and mechanical testing machines. The mechanical testing machine is used to test the tensile strength, bending strength, compression performance and other mechanical properties of the 3D printed hydrogel cartilage scaffolds to evaluate whether their mechanical properties meet the requirements.

[0003] However, the existing 3D printed hydrogel cartilage scaffold mechanical property testing device has a limited number of tests, and the mechanical properties of the cartilage scaffold are not fully tested. In addition, the various detection structures of the existing mechanical property testing devices are mostly on the same platform, and the various detection structures will interfere with each other when used simultaneously. In order to address the shortcomings of the existing technology, we propose a 3D printed hydrogel cartilage scaffold performance testing device. Utility Model Content

[0004] The main purpose of the utility model is to provide a 3D printed hydrogel cartilage scaffold performance detection device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A 3D printed hydrogel cartilage scaffold performance testing device comprises a performance testing device body, wherein three storage slots are evenly opened on the top of the performance testing device body, a silicone block is detachably installed on the bottom of the inner wall of the storage slot opened by the performance testing device body, a working plate is detachably installed on the top of the silicone block, a hydraulic push rod is detachably installed on one side of the top of the working plate, a clamping assembly is provided on one side of the top of the working plate, and the clamping assembly comprises a clamping seat, the bottom of the clamping seat and one side of the top of the working plate are detachably installed, a limiting plate is detachably installed on one side of the top of the clamping seat, a fixed screw rod is detachably installed on one side of the top of the clamping seat, one end of the fixed screw rod is movably penetrated by a splint, and an adjusting sleeve is threaded on the outer side of one end of the fixed screw rod, two groups of fixed sockets are symmetrically and detachably installed on the inner wall of the storage slot opened by the performance testing device body, a rubber block is detachably installed on one side of the inner wall of the fixed socket, and a plug is detachably installed on the top of the rubber block.

[0007] Preferably, a gap is provided between the top of the fixing socket and the working plate, and a gap is provided between the bottom of the working plate and the top of the main body of the performance detection device.

[0008] Preferably, a sliding groove is provided on one side of the clamping plate, and the interior of the sliding groove provided on the clamping plate is slidably connected to the outer side of the limiting plate.

[0009] Preferably, the bottom of the adjusting sleeve is rotatably connected to one side of the top of the clamping plate, and a gap is provided between the bottom of the clamping plate and the top of the clamping seat.

[0010] Preferably, the outer side of one end of the plug rod is plugged into the inside of the fixed socket, and the other end of the plug rod is connected to the bottom of the working plate.

[0011] Preferably, a silicone pad is detachably mounted on one side of the bottom of the splint, the width of the silicone pad is the same as the width of the splint, and the width of the splint is the same as the width of the clamping seat.

[0012] Beneficial effects

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In the utility model, the provided splint drives the silicone pad to cooperate with the clamping seat to clamp the printed hydrogel cartilage scaffolds of different sizes to be tested, which has a wider range of adaptability and stronger practicality. The repeated movement of the push rod of the hydraulic push rod is used to fully test the 3D printed hydrogel cartilage scaffold, and the test results are more reliable.

[0015] 2. In the present invention, the hydraulic push rods on the working plate are shock-absorbing by means of the provided silicone block in conjunction with the fixed socket and the insertion rod. The hydraulic push rods and clamping components on each independent working plate can work simultaneously without interfering with each other, thereby improving the detection efficiency and making the detection results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembly structure of the clamping assembly of the utility model;

[0018] Figure 3 This is an exploded view of the main body of the performance detection device of the utility model;

[0019] Figure 4 yes Figure 3 Enlarged view of area A in the middle.

[0020] In the figure: 1. Performance detection device body; 2. Silicone block; 3. Working plate; 4. Hydraulic push rod; 5. Clamping assembly; 6. Clamping seat; 7. Limiting plate; 8. Fixed screw; 9. Clamping plate; 10. Adjusting sleeve; 11. Fixed socket; 12. Rubber block; 13. Insert rod; 14. Silicone pad. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-Figure 3 As shown, a 3D printed hydrogel cartilage scaffold performance testing device includes a performance testing device body 1, three storage slots are evenly opened on the top of the performance testing device body 1, a silicone block 2 is detachably installed on the bottom of the inner wall of the storage slot opened on the performance testing device body 1, a working plate 3 is detachably installed on the top of the silicone block 2, and a hydraulic push rod 4 is detachably installed on one side of the top of the working plate 3. By twisting the adjusting sleeve 10, the splint 9 is driven to move downward under the common limit of the fixed screw 8 and the limit plate 7, and the splint 9 drives the silicone pad 14 to cooperate with the clamping seat 6 to clamp 3D printed hydrogel cartilage scaffolds to be tested of different sizes, which has a wider range of adaptability and stronger practicality.

[0023] One end of the 3D printed hydrogel cartilage scaffold to be tested is clamped on the clamping assembly 5, and the other end is bonded to one end of the push rod of the hydraulic push rod 4. The 3D printed hydrogel cartilage scaffold is repeatedly pushed and compressed by the push rod of the hydraulic push rod 4, and the 3D printed hydrogel cartilage scaffold is repeatedly compressed. In addition, the tensile strength and bending strength of the 3D printed hydrogel cartilage scaffold are tested respectively by different combinations of hydraulic push rods 4 and clamping assemblies. The 3D printed hydrogel cartilage scaffold is fully tested by the repeated movement of the push rod of the hydraulic push rod 4, and the test results are more reliable.

[0024] like Figure 3 and Figure 4 As shown, the inner wall of the storage slot opened on the main body 1 of the performance testing device is symmetrically and detachably installed with two groups of fixed sockets 11, a rubber block 12 is detachably installed on one side of the inner wall of the fixed socket 11, and an insertion rod 13 is detachably installed on the top of the rubber block 12. The three storage slots opened on the main body 1 of the performance testing device correspond to a working plate 3 respectively, and each working plate 3 is independent of each other. The silicone block 2 cooperates with the fixed socket 11 and the insertion rod 13 to dampen the hydraulic push rod 4 on the working plate 3. The same working plates 3 on the three storage slots opened on the main body 1 of the performance testing device are damped by the above-mentioned same structure. The hydraulic push rods 4 and clamping components on each independent working plate 3 can work simultaneously without interfering with each other, thereby improving the detection efficiency and making the detection results more accurate.

[0025] How it works

[0026] It should be noted that the present invention is a 3D printed hydrogel cartilage scaffold performance testing device. When in use, first screw the adjusting sleeve 10, and the adjusting sleeve 10 moves on the fixed screw rod 8 through the thread, and the adjusting sleeve 10 is rotated in the direction away from the clamping seat 6. The adjusting sleeve 10 drives the rotating connected splint 9 to move upward with the adjusting sleeve 10 under the common limit of the fixed screw rod 8 and the limit plate 7. The splint 9 drives the silicone pad 14 away from the clamping seat 6, and the 3D printed hydrogel cartilage scaffold to be tested is placed between the silicone pad 14 and the clamping seat 6. The adjusting sleeve 10 is screwed and moved downward on the fixed screw rod 8 through the thread. The adjusting sleeve 10 drives the splint 9 to move downward under the common limit of the fixed screw 8 and the limit plate 7, and the splint 9 drives the silicone pad 14 to cooperate with the clamping seat 6 to clamp one end of the 3D printed hydrogel cartilage scaffold to be tested, and the other end of the 3D printed hydrogel cartilage scaffold to be tested is bonded to one end of the push rod of the hydraulic push rod 4, and the hydraulic push rod 4 is started. The push rod of the hydraulic push rod 4 pushes and compresses the 3D printed hydrogel cartilage scaffold to be tested, and the push rod of the hydraulic push rod 4 is repeatedly pushed, so as to perform repeated compression performance testing on the 3D printed hydrogel cartilage scaffold to be tested, thereby achieving the purpose of continuously testing the performance of the 3D printed hydrogel cartilage scaffold.

[0027] When the hydraulic push rod 4 drives the 3D printed hydrogel cartilage scaffold to be tested for performance testing, the vibration generated by the hydraulic push rod 4 working on the working plate 3 is transmitted to the silicone block 2 through the working plate 3. The silicone block 2 absorbs the transmitted vibration and transmits part of the force to the performance testing device body 1. At the same time, the vibration generated by the hydraulic push rod 4 during operation drives the working plate 3 to drive the insertion rod 13 to slide in the fixed socket 11 and compress the rubber block 12. The friction between the fixed socket 11 and the insertion rod 13 offsets the rebound of the rubber block 12 after the compression of the rubber block 12. The silicone block 2 cooperates with the fixed socket 11 and the insertion rod 13 to reduce the vibration of the hydraulic push rod 4 on the working plate 3. The same working plates 3 on the three storage slots opened on the performance testing device body 1 are shock-absorbing through the above-mentioned same structure, so that the hydraulic push rods 4 and clamping assemblies 5 for performance testing in different combinations on the three same working plates 3 on the performance testing device body 1 can operate simultaneously, thereby achieving the purpose of multiple groups of tests without interfering with each other.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A 3D printed hydrogel cartilage scaffold performance testing device, comprising a performance testing device body (1), characterized in that: The performance detection device body (1) is evenly provided with three receiving grooves on the top, and a silica gel block (2) is detachably mounted on the bottom of the inner wall of the receiving groove provided on the performance detection device body (1), and a working plate (3) is detachably mounted on the top of the silica gel block (2), and a hydraulic push rod (4) is detachably mounted on one side of the top of the working plate (3), and a clamping assembly (5) is provided on one side of the top of the working plate (3), and the clamping assembly (5) includes a clamping seat (6), and the bottom of the clamping seat (6) is detachably mounted on one side of the top of the working plate (3), and the clamping seat ( 6) A limit plate (7) is detachably mounted on one side of the top, a fixed screw (8) is detachably mounted on one side of the top of the clamping seat (6), one end of the fixed screw (8) is movably penetrated by a clamping plate (9), and one end of the fixed screw (8) is threadedly connected to an adjusting sleeve (10), and two groups of fixed sockets (11) are symmetrically detachably mounted on the inner wall of the receiving slot provided on the main body (1) of the performance detection device, a rubber block (12) is detachably mounted on one side of the inner wall of the fixed socket (11), and an insertion rod (13) is detachably mounted on the top of the rubber block (12).

2. A 3D printed hydrogel cartilage scaffold performance detection device according to claim 1, characterized in that: A gap is provided between the top of the fixed socket (11) and the working plate (3), and a gap is provided between the bottom of the working plate (3) and the top of the performance detection device body (1).

3. A 3D printed hydrogel cartilage scaffold performance detection device according to claim 1, characterized in that: A sliding groove is provided on one side of the clamping plate (9), and the interior of the sliding groove provided on the clamping plate (9) is slidably connected to the outer side of the limiting plate (7).

4. The 3D printed hydrogel cartilage scaffold performance detection device according to claim 1, characterized in that: The bottom of the adjusting sleeve (10) is rotatably connected to one side of the top of the clamping plate (9), and a gap is provided between the bottom of the clamping plate (9) and the top of the clamping seat (6).

5. The 3D printed hydrogel cartilage scaffold performance testing device according to claim 1, characterized in that: The outer side of one end of the plug rod (13) is plugged into the inside of the fixed socket (11), and the other end of the plug rod (13) is connected to the bottom of the working plate (3).

6. The 3D printed hydrogel cartilage scaffold performance detection device according to claim 1, characterized in that: A silicone pad (14) is detachably mounted on one side of the bottom of the clamping plate (9), and the width of the silicone pad (14) is the same as that of the clamping plate (9), and the width of the clamping plate (9) is the same as that of the clamping seat (6).

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