Suture needle bending resistance testing equipment

Abstract

The invention discloses suture needle bending resistance testing equipment which comprises a machine body, two movable bottom clamping plates movably arranged at the top of a U-shaped frame base, a fixed base and a movable top clamping plate which are further arranged on the front surface of a swing plate, and a movable protective cover mechanism arranged on the front surface of a top machine base. Comprising two side guide frames symmetrically fixed to the front surface of the top machine base and a protective cover which is installed between the two side guide frames in a sliding mode and can cover the swing plate and the U-shaped frame base on the inner side after sliding downwards. By designing the movable protective cover mechanism, after the suture needle is clamped, the protective cover slides down to cover the clamp, the swing plate and the suture needle, so that the whole test environment is in a relatively closed area, the potential safety hazard caused by breaking and cracking during the bending resistance test of the suture needle is effectively prevented, and the test efficiency is improved. Operators are prevented from being injured due to splashing of the suture needle, and the personal safety of the operators is guaranteed; meanwhile, the protective cover is made of a transparent acrylic material, so that the normal observation of an operator on the testing process is not influenced.

Description

Technical Field

[0001] This invention belongs to the technical field of suture needle testing equipment, specifically relating to a suture needle bending resistance testing device. Background Technology

[0002] In the medical field, suture needles are indispensable instruments in surgical procedures. Their quality directly affects the success rate of the surgery and the patient's postoperative recovery. The toughness of the suture needle is one of the key indicators for measuring its quality. Good toughness ensures that the suture needle is not easily broken during tissue puncture, thus ensuring the smooth progress of the surgery. Therefore, accurate toughness testing of suture needles is an important step in ensuring their quality. Currently, there are some suture needle toughness testing instruments on the market. Their main function is to simulate the stress conditions in actual use and conduct bending and tensile tests on the suture needle to evaluate its toughness. These devices typically have core components such as clamps, force sensors, and control systems. The clamps fix the two ends of the suture needle, ensuring its stable position during testing. The force sensors are responsible for accurately measuring the applied force, providing accurate data for subsequent analysis. The control system records test data and performs in-depth analysis to derive relevant parameters of the suture needle's toughness. During bending tests, the suture needle is first fixed to the clamps, then an internal motor is driven to rotate. The motor drives the upper swing plate to rotate, applying a force perpendicular to the needle body. The toughness is assessed by observing the degree of bending deformation and the fracture point of the suture needle.

[0003] However, traditional suture needle toughness testers have significant safety hazards during actual testing. Due to the lack of any protective structure, when a suture needle breaks during the bending test, the broken piece may fly around the equipment at a high speed. During the test, operators usually need to observe the suture needle closely. If the suture needle breaks and flies out at this time, the operator is likely to be injured. This not only threatens the operator's health but may also affect the normal progress of the test. Therefore, this invention proposes a suture needle bending resistance testing device. Summary of the Invention

[0004] The purpose of this invention is to provide a suture needle bending resistance testing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a suture needle bending resistance testing device, comprising a body, an integrated top base and an operation screen disposed on the top of the body, a swing plate rotatably mounted on the front surface of the top base, a U-shaped frame fixed to the top surface of the body and located at the bottom of the swing plate, and two movable bottom clamps movably disposed on the top of the U-shaped frame. The front surface of the swing plate is further provided with a fixed seat and movable top clamps, and also includes... The movable protective cover mechanism set on the front surface of the top machine base includes two side guides symmetrically fixed on the front surface of the top machine base, and a protective cover that slides between the two side guides and can cover the swing plate and U-shaped frame seat inside after sliding down.

[0006] Preferably, guide bolts are fixed on both sides of the bottom end of the protective cover, and the surface of the side guide frame is provided with strip-shaped guide grooves for the guide bolts to slide.

[0007] Preferably, it also includes a top limiting structure, which is located on the top of the side guide frame.

[0008] Preferably, the top limiting structure includes a stand fixed to the top surface of the side guide and located on one side of the protective cover, a movable side plate movably installed on the outside of the stand, a movable side rod fixed to the side of the movable side plate and extending to the inside of the stand, and an arc-shaped movable locking block fixed to the end of the movable side rod. Both sides of the protective cover are provided with strip-shaped slots for the end of the arc-shaped movable locking block to be inserted.

[0009] Preferably, a side support rod is fixed to the outer surface of the stand, and a side end plate is fixed to the end of the side support rod. The top of the movable side plate is movably sleeved on the surface of the side support rod, and a spring is sleeved between the surface of the side support rod and the side end plate and the movable side plate.

[0010] Preferably, the bottom of the protective cover has threaded grooves on both sides for the guide bolts to be screwed into, the inner end of the guide bolts is screwed into the threaded grooves, and the outer end surface of the guide bolts has an internal hexagonal groove.

[0011] Preferably, the movable protective cover mechanism further includes two L-shaped side positioning seats symmetrically fixed on the top surface of the machine body, and the two L-shaped side positioning seats are respectively located on the outside of the two side guides. The inner surface of the L-shaped side positioning seat is provided with an integral hemispherical positioning protrusion corresponding to the internal hexagonal groove.

[0012] Preferably, threaded rod 1 is threaded through both sides of the U-shaped frame, and the inner end of threaded rod 1 passes through to the inner side of the U-shaped frame and is rotatably connected to the movable bottom clamping plate. Threaded rod 2 is rotatably installed on the right side surface of the movable top clamping plate, and the end of threaded rod 2 is threaded through to the right side of the fixed seat. A clamping plate guide rod is fixed to the right side of the top of the movable top clamping plate, and the right end of the clamping plate guide rod passes through to the right side of the fixed seat.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The suture needle bending resistance testing device proposed in this application, through the design of a movable protective cover mechanism, after the suture needle is clamped, the protective cover slides down to cover the clamp, swing plate and suture needle completely inside, making the entire testing environment a relatively closed area. This effectively prevents the safety hazards caused by breakage and fracture during the suture needle bending resistance test, avoids injury to operators due to suture needle splashing, and ensures the personal safety of operators. At the same time, the protective cover is made of transparent acrylic material, which will not affect the normal observation of the operator during the testing process, allowing the operator to grasp key information such as the degree of bending deformation and breakage point of the suture needle in real time and clearly, ensuring that the suture needle testing work can be carried out safely and stably, and improving the efficiency and reliability of the testing work. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a rear perspective view of the present invention; Figure 3 For the present invention Figure 1 A magnified view of a portion of region A in the middle; Figure 4 For the present invention Figure 1 A magnified view of a portion of region B in the middle; Figure 5 For the present invention Figure 1 A magnified view of a portion of region C in the middle; In the diagram: 1. Machine body; 2. Top base; 3. U-shaped frame base; 31. Movable bottom clamping plate; 32. Threaded screw rod one; 5. Operation panel; 6. Swing plate; 61. Fixed seat; 62. Threaded screw rod two; 63. Movable top clamping plate; 64. Clamping plate guide rod; 71. Protective cover; 72. Guide bolt; 721. Hexagonal socket; 73. Side guide frame; 731. Strip guide groove; 74. L-shaped side positioning seat; 741. Hemispherical positioning protrusion; 75. Top limiting structure; 751. Stand; 752. Movable side plate; 753. Movable side rod; 754. Arc-shaped movable locking block; 755. Strip-shaped locking slot; 756. Side support rod; 757. Side end plate; 758. Spring. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0016] Please see Figures 1 to 4This is the first embodiment of the present invention, which provides the following technical solution: a suture needle bending resistance testing device, comprising a body 1, an integrated top base 2 and an operation screen 5 disposed on the top of the body 1, a swing plate 6 rotatably mounted on the front surface of the top base 2 (the swing plate 6 is connected to the output shaft of a motor inside the top base 2 and can be driven by the motor to rotate), a U-shaped frame 3 fixed on the top surface of the body 1 and located at the bottom of the swing plate 6, and two movable bottom clamps 31 movably disposed on the top of the U-shaped frame 3 for clamping the bottom end of the suture needle. The front surface of the swing plate 6 is also provided with a fixed seat 61 and a movable bottom clamp 62. The top clamp 63 is used to hold the tip of the suture needle. Both sides of the U-shaped support 3 have threaded screw rods 32 threaded through them, with the inner end of the first screw rod 32 extending to the inner side of the U-shaped support 3 and rotatably connected to the movable bottom clamp 31. This allows the operator to insert the bottom end of the suture needle between the two movable bottom clamps 31 and then rotate the first screw rod 32 clockwise, so that the two movable bottom clamps 31 firmly clamp the bottom end of the suture needle. A second screw rod 62 is rotatably mounted on the right side surface of the movable top clamp 63, with the end of the second screw rod 62 threaded through to the fixed base 61. On the right side, this allows the operator to insert the tip of the suture needle between the fixed seat 61 and the movable top clamp 63. Then, by rotating the threaded rod 62 clockwise, the movable top clamp 63 and the fixed seat 61 can firmly clamp the tip of the suture needle. A clamping guide rod 64 is fixed to the right side of the top of the movable top clamp 63, and the right end of the clamping guide rod 64 extends to the right side of the fixed seat 61, providing guidance and support when the movable top clamp 63 moves laterally. The above structures are all existing technologies; the specific structural principles will not be elaborated upon here. Simply put, it clamps the tip of the suture needle between the fixed seat 61 and the fixed seat 63. The bottom end of the suture needle is clamped between the base 61 and the movable top clamp 63, and then the device is started, which causes the motor in the top base 2 to start, so that the swing plate 6 can rotate, thereby applying a force perpendicular to the suture needle, and thus performing a bending resistance test on the suture needle. It is worth noting that the suture needle bending resistance test device of this application is a mature product that can be directly purchased on the market, such as the suture needle toughness tester with model number RX9626-D. This application has made further optimizations and improvements on this basis to ensure the stability and safety of the test. Also includes The movable protective cover mechanism, located on the front surface of the top machine base 2, includes two side guide frames 73 symmetrically welded and fixed to the front surface of the top machine base 2, and a protective cover 71 that slides between the two side guide frames 73 and can cover the swing plate 6 and the U-shaped frame base 3 inside after sliding down. The protective cover 71 is made of transparent acrylic material, and the bottom and rear of the protective cover 71 are open (e.g., Figure 2As shown in the diagram, during subsequent testing, the protective cover 71 can be slid down to completely cover the swing plate 6 and the U-shaped bracket 3 inside, making the entire testing environment a relatively enclosed area. This effectively prevents the safety hazards caused by the breakage and fracture of the suture needle during the bending resistance test, and avoids injury to the operator due to the suture needle flying. After the test is completed, the protective cover 71 can be slid up. The protective cover 71 is made of transparent acrylic material, which will not affect the operator's normal observation of the testing process, allowing the operator to grasp key information such as the degree of bending deformation and the breakage point of the suture needle in real time and clearly.

[0017] In this embodiment, preferably, guide bolts 72 are fixed on both sides of the bottom end of the protective cover 71, and the surface of the side guide frame 73 is provided with a strip-shaped guide groove 731 for the guide bolts 72 to slide, so that the protective cover 71 can get effective guidance support when sliding up and down, and ensure the stable up and down sliding of the protective cover 71.

[0018] In this embodiment, preferably, a top limiting structure 75 is also included. The top limiting structure 75 is located on the top of the side guide frame 73 and is used for stable limiting of the protective cover 71 in the upward sliding state. The top limiting structure 75 includes a stand 751 welded and fixed to the top surface of the side guide frame 73 and located on one side of the protective cover 71, a movable side plate 752 movably installed on the outside of the stand 751, a movable side rod 753 fixed to the side of the movable side plate 752 and extending through to the inside of the stand 751, and an arc-shaped movable latch 754 fixed to the end of the movable side rod 753. Both sides of the protective cover 71 are provided with arc-shaped movable latches. The end of the movable locking block 754 engages with the strip-shaped locking slot 755, allowing the protective cover 71 to slide upwards. The end of the arc-shaped movable locking block 754 then engages within the strip-shaped locking slot 755, effectively limiting the position of the protective cover 71 and facilitating the operator's handling of the suture needle. A side support rod 756 is fixed to the outer surface of the stand 751, and a side end plate 757 is fixed to the end of the side support rod 756. The top of the movable side plate 752 is movably sleeved on the surface of the side support rod 756, and a spring 758 is sleeved between the surface of the side support rod 756 and the side end plate 757 and the movable side plate 752. The side support rod 756 can... The movable side plate 752 acts as a guide and support when sliding left and right, while the spring 758, through its own clamping force, ensures that the movable side plate 752 remains in contact with the outer surface of the stand 751 during daily use. This ensures that when the protective cover 71 slides upward, the end of the arc-shaped movable latch 754 can be stably locked within the strip-shaped latch 755, guaranteeing the limiting stability of the protective cover 71. When it is necessary to slide the protective cover 71 downward, simply press the protective cover 71 down forcefully. When pressing down, the arc-shaped surface of the arc-shaped movable latch 754 will be squeezed, and the upper part of the arc-shaped movable latch 754 will generate... The horizontal component of the force causes lateral displacement, which in turn causes the movable side rod 753 to move laterally along with the movable side plate 752 and further compresses the spring 758. This causes the end of the arc-shaped movable block 754 to be squeezed out of the strip-shaped slot 755, allowing the protective cover 71 to slide down smoothly. Similarly, when the protective cover 71 slides up, it will also squeeze the end of the arc-shaped movable block 754, causing the arc-shaped movable block 754 to move laterally until the protective cover 71 slides up to the top. At this point, the end of the arc-shaped movable block 754 will be locked into the strip-shaped slot 755, thereby quickly locking and limiting the protective cover 71.

[0019] In this embodiment, preferably, threaded grooves are provided on both sides of the bottom end of the protective cover 71 for the guide bolt 72 to be screwed in. The inner end of the guide bolt 72 is screwed into the threaded groove, so that the guide bolt 72 can be fixed on the side of the protective cover 71. The outer end surface of the guide bolt 72 is provided with an internal hexagonal groove 721, which makes it convenient for subsequent operators to rotate and tighten the guide bolt 72 with an internal hexagonal wrench, and facilitates the disassembly and assembly of the guide bolt 72 in the later stage. Example

[0020] Please see Figures 1 to 5This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the movable protective cover mechanism also includes two L-shaped side positioning seats 74 symmetrically glued and fixed to the top surface of the machine body 1. The two L-shaped side positioning seats 74 are respectively located on the outside of the two side guides 73. The inner surface of the L-shaped side positioning seats 74 is provided with an integral hemispherical positioning protrusion 741 corresponding to the internal hexagonal groove 721. Both are made of rubber material and will undergo elastic deformation when squeezed. When the operator slides the protective cover 71 down to fit against the top surface of the machine body 1, the end of the hemispherical positioning protrusion 741 will be squeezed into the internal hexagonal groove 721 to achieve auxiliary limiting of the protective cover 71 in the downward state and ensure the stability of the protective cover 71 in the downward state. When the operator needs to slide the protective cover 71 up and lift it, he only needs to lift the protective cover 71 with force so that the hemispherical positioning protrusion 741 and the L-shaped side positioning seat 74 are squeezed and undergo elastic deformation, so that the protective cover 71 can be lifted smoothly. The operation is highly convenient.

[0021] Although embodiments of the invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suture needle bending resistance testing device, comprising a body (1), an integrated top base (2) and an operation screen (5) disposed on the top of the body (1), a swing plate (6) rotatably mounted on the front surface of the top base (2), a U-shaped frame (3) fixed on the top surface of the body (1) and located at the bottom of the swing plate (6), and two movable bottom clamps (31) movably disposed on the top of the U-shaped frame (3), wherein the front surface of the swing plate (6) is further provided with a fixed seat (61) and a movable top clamp (63), characterized in that: Also includes The movable protective cover mechanism set on the front surface of the top machine base (2) includes two side guides (73) symmetrically fixed on the front surface of the top machine base (2) and a protective cover (71) that slides between the two side guides (73) and can cover the swing plate (6) and the U-shaped frame (3) on the inside.

2. The suture needle bending resistance testing device according to claim 1, characterized in that: Guide bolts (72) are fixed on both sides of the bottom end of the protective cover (71), and a strip guide groove (731) is provided on the surface of the side guide frame (73) for the guide bolts (72) to slide.

3. The suture needle bending resistance testing device according to claim 1, characterized in that: It also includes a top limiting structure (75) which is located on top of the side guide (73).

4. The suture needle bending resistance testing device according to claim 3, characterized in that: The top limiting structure (75) includes a stand (751) fixed on the top surface of the side guide (73) and located on one side of the protective cover (71), a movable side plate (752) movably installed on the outside of the stand (751), a movable side rod (753) fixed on the side of the movable side plate (752) and extending through to the inside of the stand (751), and an arc-shaped movable locking block (754) fixed at the end of the movable side rod (753). Both sides of the protective cover (71) are provided with strip-shaped slots (755) for the end of the arc-shaped movable locking block (754) to be inserted.

5. The suture needle bending resistance testing device according to claim 4, characterized in that: A side support rod (756) is fixed to the outer surface of the stand (751), and a side end plate (757) is fixed to the end of the side support rod (756). The top of the movable side plate (752) is movably sleeved on the surface of the side support rod (756), and a spring (758) is sleeved between the surface of the side support rod (756) and the side end plate (757) and the movable side plate (752).

6. The suture needle bending resistance testing device according to claim 5, characterized in that: The bottom of the protective cover (71) is provided with threaded grooves on both sides for the guide bolt (72) to be screwed in. The inner end of the guide bolt (72) is screwed into the threaded groove, and the outer end surface of the guide bolt (72) is provided with an internal hexagonal groove (721).

7. The suture needle bending resistance testing device according to claim 6, characterized in that: The movable protective cover mechanism also includes two L-shaped side positioning seats (74) symmetrically fixed on the top surface of the body (1), and the two L-shaped side positioning seats (74) are respectively located on the outside of the two side guides (73). The inner surface of the L-shaped side positioning seat (74) is provided with an integral hemispherical positioning protrusion (741) corresponding to the internal hexagonal groove (721).

8. The suture needle bending resistance testing device according to claim 1, characterized in that: Both sides of the U-shaped frame (3) are threaded with threaded rods (32), and the inner end of the threaded rods (32) passes through the inner side of the U-shaped frame (3) and is rotatably connected to the movable bottom clamp (31). The right side surface of the movable top clamp (63) is rotatably mounted with threaded rods (62), and the end of the threaded rods (62) passes through the right side of the fixed seat (61). The right side of the top of the movable top clamp (63) is fixed with a clamp guide rod (64), and the right end of the clamp guide rod (64) passes through the right side of the fixed seat (61).

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