Needle-thread connection strength detection device and detection method for animal tendon suture
By designing detection devices for supporting rods, test rods, clamps and measuring blocks, non-destructive connection strength detection between sutures and suture needles is realized, solving the problem of high detection costs in the prior art, ensuring sutures and sutures Resilience of needles.
Patent Information
- Application Number
- CN202411488172.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2024-12-24
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the connection strength detection method between suture and suture needle is mostly destructive test, which leads to the suture and suture needle being no longer used, and the cost of animal tendon suture is high and the detection cost is high.
A detection device including a support rod, a test rod, a clamp, a bracket and a measuring block is designed to fix the suture by the measuring block, the clamp clamps and flip the test rod, and the suture is straightened to detect the connection strength. If the cracking is constantly, the connection strength will be qualified. The device design prevents the suture and suture needle from being damaged.
Non-destructive detection is achieved, and sutures and suture needles can continue to be used, reducing the detection cost of animal tendon sutures.
Smart Images
Figure CN119178667A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of detection equipment, and in particular to a device and method for detecting the needle and thread connection strength of animal tendon sutures. Background Art
[0002] Medical sutures are a special linear material used for human tissue suturing, hemostasis, and ligation. Animal tendon sutures are a type of medical sutures. They are naturally absorbable sutures with no chemical coating on the surface and are equipped with suture needles. Therefore, whether the connection strength between the suture and the suture needle is qualified directly affects whether tissue suturing and hemostasis can be carried out smoothly in subsequent operations. Therefore, testing the connection strength between the suture and the suture needle is an important part of the suture production process.
[0003] At present, the method of detecting the connection strength between the suture thread and the suture needle in the prior art is usually to clamp the suture needle with a toothed clamping component on the clamping member, and then subsequently stretch the suture thread and the traction needle through a tensile testing machine or other equipment until the needle and thread are detached and broken, so as to judge and detect the connection strength between the suture needle and the suture thread.
[0004] However, this method is mostly a destructive test, which may result in the sutures and suture needles being unusable after testing. In addition, since the cost of animal tendon sutures is relatively high, the animal tendon sutures may be easily damaged by testing in this way, resulting in a high testing cost. Summary of the invention
[0005] In order to reduce the detection cost of animal tendon sutures, in a first aspect, the present application provides a needle and thread connection strength detection device for animal tendon sutures.
[0006] The present application provides a device for detecting the needle and thread connection strength of animal tendon sutures using the following technical solution: It includes a support rod, a test rod, a clamping piece, a bracket and a measuring block. One end of the support rod is perpendicular to the ground and fixed, and the other end of the support rod is hinged to the test rod. The measuring block is slidably arranged at one end of the test rod and can be connected to a suture line. A connecting piece is arranged at one end of the test rod away from the measuring block. The connecting piece is installed on the test rod and connected to the clamping piece. The clamping piece is on the connecting piece and can be flipped up and down relative to the test rod. The bracket is installed on the support rod to make the test rod in a horizontal state.
[0007] By adopting the above technical scheme, the measuring block is first fixed at a preset position on the test rod, and then the test rod is placed in a horizontal state through the bracket, the end of the suture away from the suture needle is fixed on the measuring block, and then the clamp is clamped by the clamp, and then the clamp is driven so that the clamp can be flipped relative to the test rod. At this time, the suture is straightened, thereby driving the measuring block installed at the end of the test rod to have a tendency to drive the test rod to flip, and the suture is kept pulled until the test rod rotates and no longer abuts against the bracket. At this time, if there is no break between the suture and the suture needle, the connection strength is qualified, and if there is a break between the suture and the suture needle, the connection strength is unqualified. In this process, whether the test rod can leave the bracket under the premise of supporting the measuring block is used as a detection reference, and the suture and the suture needle will not be easily damaged, so that the tested suture and suture needle can continue to be used in the future, thereby achieving the effect of reducing the cost of animal tendon suture connection strength detection.
[0008] Optionally, a limiting member 1 is provided on the measuring block, and the limiting member 1 is connected to the measuring block by threaded cooperation. After passing through the measuring block, the limiting member 1 can be tightly pressed against the test rod.
[0009] By adopting the above technical solution, a limit member 1 is provided on the measuring block, so that after adjusting the position of the measuring block on the test rod, the position of the measuring block on the test rod can be fixed by twisting the limit member 1, so that the suture line connected to the measuring block can have a stable connection point.
[0010] Optionally, a buffer member 1 is provided on the bracket, and the buffer member 1 can abut against the test rod.
[0011] By adopting the above technical solution, a buffer member 1 is provided on the bracket, so that when the connection strength test between the suture thread and the suture needle is completed, when the test rod abuts against the bracket again, the buffer member 1 can absorb the impact generated when the test rod abuts against the bracket, thereby protecting the test rod.
[0012] Optionally, a sliding groove is provided on the support rod, the bracket is slidably arranged in the sliding groove, and a second limiting member for fixing the position of the bracket on the support rod is passed through the bracket.
[0013] By adopting the above technical solution, a sliding groove is provided on the support rod, and the bracket is slidably arranged in the sliding groove, so that the position of the bracket on the support rod can be adjusted. Further, after the buffer is worn, the position of the bracket can be adjusted so that the test rod can still maintain a horizontal state when it abuts against the buffer, thereby increasing the service life of the buffer.
[0014] Optionally, a connecting seat is provided at one end of the support rod close to the test rod, a connecting plate is provided at one side of the connecting seat close to the measuring block, and a buffer member 2 capable of limiting the rotation range of the test rod is provided at one end of the connecting plate away from the connecting seat.
[0015] By adopting the above technical solution, when the test rod leaves the bracket, the buffer part 2 on the connecting plate can abut against the test rod, thereby limiting the rotation angle of the test rod on the support rod, and at the same time, it can also buffer the impact force generated when the test rod rotates toward the connecting rod, thereby protecting the test rod.
[0016] Optionally, the clamping member includes a connecting rod, a threading sleeve and a locking sleeve, the threading sleeve is provided with a threading hole, the connecting rod is connected to the connecting member, the threading sleeve includes a fixedly connected connecting part and a locking part, the threading hole passes through the connecting part and the locking part, the connecting part is connected to an end of the connecting rod away from the connecting member, the locking sleeve is threadedly connected to the locking part, and the locking sleeve is used to reduce the diameter of the threading hole at the locking part.
[0017] By adopting the above technical solution, when it is necessary to test the connection strength between the suture thread and the suture needle, firstly insert the end of the suture thread away from the suture needle through the threading hole at the locking part and connect it to the measuring block. Then, by rotating the locking sleeve, the diameter of the threading hole at the locking part is reduced so that the suture needle cannot pass through the threading hole, thereby achieving the fixation of the suture needle. In this way, no clamping marks are left on the suture needle, the probability of burrs on the outer wall of the suture needle is reduced, and the suture needle is protected.
[0018] Optionally, a flexible pad is provided on the inner wall of the locking portion.
[0019] By adopting the above technical solution, a flexible pad is provided on the inner wall of the locking part, so that when the locking sleeve is tightened on the threading sleeve, the locking part can be pressed against the surface of the suture. The provision of the flexible pad prevents the locking part from easily causing damage to the surface of the suture when pressing against the surface of the suture, thereby playing a role in protecting the suture.
[0020] In a second aspect, the present application further provides a method for detecting the needle-thread connection strength of an animal tendon suture, which uses the above-mentioned needle-thread connection strength detection device for an animal tendon suture, and comprises the following steps: S100: Slide the measuring block to a designated position on the test rod, then fix the position of the measuring block on the test rod, adjust the position of the bracket to make the test rod horizontal, and fix the end of the needle thread away from the suture needle on the measuring block; S200: clamping the suture needle on the needle thread by the clamping member, and causing the clamping member to flip in a direction away from the test rod, thereby pulling the needle thread; S300: When the test rod equipped with the measuring block begins to flip in a direction away from the bracket, the traction of the clamping member is stopped.
[0021] In summary, the present application includes at least the following beneficial technical effects: 1. By setting a support rod, a measuring rod, a measuring block, a bracket and a clamping member, the suture is fixed by the measuring block, and the suture needle is clamped by the clamping member, so that when the clamping member is fixed on the measuring block, the suture needle can be pulled by the clamping member, and then the traction of the suture needle by the clamping member makes the measuring rod have a tendency to rotate around the axis of the hinge shaft relative to the support rod, thereby detecting the connection strength between the suture needle and the suture, and whether the test rod can leave the bracket under the premise of supporting the measuring block is used as a detection reference, the suture and the suture needle will not be easily damaged, so that the tested suture and suture needle can continue to be used later, thereby achieving the effect of reducing the cost of detecting the connection strength of animal tendon sutures.
[0022] 2. A flexible pad is provided at the locking portion located in the threading hole, so that when the locking sleeve is tightened on the threading sleeve, the locking portion can be pressed against the surface of the suture, and the flexible pad is provided so that the locking portion will not easily cause damage to the surface of the suture when pressed against the surface of the suture, thereby achieving the effect of protecting the suture when testing the connection strength. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional schematic diagram of a needle-thread connection strength detection device for animal tendon sutures in Example 1 of the present application; Figure 2 It is a three-dimensional schematic diagram of a needle-thread connection strength detection device for animal tendon sutures in Example 3 of the present application; Figure 3 yes Figure 2 Schematic diagram of the structure of the threading sleeve and the locking sleeve.
[0024] Explanation of the accompanying drawings: 1. Support rod; 2. Test rod; 3. Clamping member; 4. Bracket; 5. Measuring block; 6. Connecting member; 7. Limiting member 1; 8. Buffering member 1; 9. Sliding groove; 10. Limiting member 2; 11. Connecting seat; 12. Connecting plate; 13. Buffering member 2; 14. Connecting rod; 15. Threading sleeve; 16. Locking sleeve; 17. Connecting part; 18. Locking part; 19. Threading hole; 20. Flexible pad. DETAILED DESCRIPTION
[0025] The following is combined with Figure 1-3 This application is described in further detail.
[0026] Example 1 Embodiment 1 of the present application discloses a device for detecting the needle-thread connection strength of animal tendon sutures, referring to Figure 1 , including a support rod 1, a test rod 2, a clamping member 3, a bracket 4 and a measuring block 5, wherein the length direction of the support rod 1 is perpendicular to the ground and is fixedly arranged, and the test rod 2 is hinged at the upper end of the support rod 1, and the axis of the hinge shaft between the test rod 2 and the support rod 1 is parallel to the ground, one end of the test rod 2 is the test end, and the other end of the test rod 2 is the traction end, the support rod 1 is hinged between the test end and the traction end on the test rod 2, the measuring block 5 is a weight of unit weight, a dovetail groove is provided on the measuring block 5, the measuring block 5 is slidably arranged on the test end of the test rod 2, and a limit member 7 is also penetrated on the measuring block 5, the limit member 7 is a bolt, and the limit member 7 and the measuring block 5 are connected by threaded cooperation, so that the position of the measuring block 5 on the test rod 2 can be fixed by tightening the limit member 7 later.
[0027] The bracket 4 is arranged on the support rod 1, and the bracket 4 is below the test end of the test rod 2. A buffer 8 is arranged on the bracket 4, and the buffer 8 is a spring. The buffer 8 on the bracket 4 can abut against the lower surface of the test rod 2, so that the test rod 2 can remain horizontal on the support rod 1, and a connecting member 6 is arranged on the end of the test rod 2 away from the measuring block 5. The clamping member 3 is installed on the connecting member 6 and can be turned over on the connecting member 6 relative to the test rod 2. The clamping member 3 is a needle clamp. When it is necessary to test the connection strength between the suture thread and the suture needle, the measuring block 5 is first slid to the corresponding position on the test rod 2, and then the suture thread is fixed on the measuring block 5, and then the suture needle is clamped by the clamping member 3. Subsequently, the suture needle is pulled by turning the clamping member 3 on the connecting member 6. At this time, the suture thread is straightened, and when the test rod 2 leaves the buffer 8 on the bracket 4, the traction of the suture needle is stopped.
[0028] In this process, the farther the position of the measuring block 5 on the test rod 2 is from the hinge point between the test rod 2 and the support rod 1, the greater the force required to clamp the suture needle through the clamp 3 to pull the test rod 2 away from the bracket 4. Therefore, the connection strength between sutures of different specifications and suture needles can be tested by adjusting the position of the measuring block 5 on the test rod 2.
[0029] When the clamping member 3 no longer clamps the suture needle, the test rod 2 rotates toward the bracket 4 under the gravity of the measuring block 5. At this time, the buffer member 18 has a buffering effect on the test rod 2. Furthermore, a connecting seat 11 is provided on the support rod 1, and a connecting plate 12 is provided on the connecting seat 11. The connecting plate 12 is located on the side of the connecting seat 11 close to the test end of the test rod 2. One end of the connecting plate 12 is connected to the connecting seat 11, and a buffer member 2 13 is installed on the other end of the connecting plate 12. The buffer member 2 13 is also a spring. This enables the clamping member 3 to pull the suture needle. After the test rod 2 leaves the buffer member 18 on the bracket 4, the connecting plate 12 can limit the rotation angle of the test rod 2, and the buffer member 2 13 on the connecting plate 12 is used to reduce the impact between the test rod 2 and the connecting plate 12, thereby protecting the test rod 2.
[0030] In other embodiments, the buffer 1 8 and the buffer 13 may also be rubber blocks.
[0031] Furthermore, a sliding groove 9 is arranged on the side wall of the support rod 1, and the sliding groove 9 is a dovetail groove. The extending direction of the sliding groove 9 is consistent with the length direction of the support rod 1, and the bracket 4 is slidably arranged in the sliding groove 9. A limiting member 2 10 is also penetrated on the bracket 4, and the limiting member 2 10 is a bolt. The limiting member 2 10 is connected to the bracket 4 by threaded cooperation, so that when the limiting member 2 10 is tightened, the position of the bracket 4 in the sliding groove 9 is fixed, and then the height on the support rod 1 is fixed, which also makes it possible for the staff to compensate for the deformation of the buffer 8 by adjusting the height of the bracket 4 on the support rod 1 without affecting the buffering performance of the buffer 8 after the buffer 8 is deformed, so that the buffer 8 can have a longer service life.
[0032] The implementation principle of Example 1 of the present application is: first adjust the position of the bracket 4 on the support rod 1 so that the test rod 2 is in a horizontal state, and then adjust the position of the test end of the measuring block 5 on the test rod 2, and then fix the end of the suture thread away from the suture needle on the measuring block 5, and clamp the suture needle through the clamping member 3, and then drive the suture needle to flip through the clamping member 3 until the test end of the test rod 2 leaves the bracket 4. If there is no break between the suture needle and the suture thread, the connection strength between the suture thread and the suture needle is qualified at this time.
[0033] Example 2 Embodiment 2 of the present application provides a method for detecting the needle thread connection strength of an animal tendon suture, which uses a needle thread connection strength detection device for an animal tendon suture in the above embodiment 1, and includes the following steps: S100: Slide the measuring block 5 to a designated position on the test rod 2, then fix the position of the measuring block 5 on the test rod 2, adjust the position of the bracket 4 to make the test rod 2 horizontal, and fix the end of the needle thread away from the suture needle on the measuring block 5; S200: Clamp the suture needle on the needle thread by the clamping member 3, and move the clamping member 3 in a direction away from the test rod 2, thereby pulling the needle thread; S300: When the test rod 2 equipped with the measuring block 5 starts to move in a direction away from the bracket 4, the pulling of the clamping member 3 is stopped.
[0034] Example 3 Reference Figure 1 and Figure 2 .The difference between Example 3 of the present application and Example 1 is that the structure of the clamping member 3 is different.
[0035] Reference Figure 2 and Figure 3 The clamping member 3 in the embodiment 3 of the present application includes a connecting rod 14, a threading sleeve 15 and a locking sleeve 16, wherein the threading sleeve 15 includes a connecting portion 17 and a locking portion 18 that are fixedly connected, and a threading hole 19 that passes through the connecting portion 17 and the locking portion 18 is provided on the threading sleeve 15, and one end of the connecting rod 14 is fixedly connected to the outer wall of the threading sleeve 15 at the connecting portion 17, and the other end of the connecting rod 14 is connected to the connecting member 6, and the locking sleeve 16 is sleeved on the locking portion 18, and the locking sleeve 16 is connected to the connecting portion 17 by threaded matching. When the locking sleeve 16 is tightened, the diameter of the threading hole 19 at the locking portion 18 will be reduced, making it impossible for the suture needle to pass through. This allows the end of the suture thread away from the suture needle to first pass through the threading hole 19 and then connect to the measuring block 5. After that, the locking sleeve 16 is twisted to prevent the suture needle from passing through the threading hole 19. Subsequently, the suture needle can be pulled by driving the connecting rod 14. Compared with the traction method of directly clamping the suture needle, it achieves the effect of protecting the outer wall of the suture needle so that burrs are not easily formed on the outer wall of the suture needle.
[0036] Furthermore, a flexible pad 20 is provided at the portion of the locking portion 18 located in the threading hole 19. This allows the flexible pad 20 to be located between the locking portion 18 and the suture when the locking portion 18 abuts against the suture under the action of the locking sleeve 16, thereby preventing the outer surface of the suture from being easily deformed or damaged, thereby protecting the suture.
[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A device for detecting the needle-thread connection strength of animal tendon sutures, characterized in that: The invention comprises a support rod (1), a test rod (2), a clamping member (3), a bracket (4) and a measuring block (5); one end of the support rod (1) is perpendicular to the ground and fixedly arranged; the other end of the support rod (1) is hinged to the test rod (2); the measuring block (5) is slidably arranged at one end of the test rod (2) and can be connected to a suture; one end of the test rod (2) away from the measuring block (5) is provided with a connecting member (6); the connecting member (6) is mounted on the test rod (2) and connected to the clamping member (3); the clamping member (3) is on the connecting member (6) and can be turned up and down relative to the test rod (2); the bracket (4) is mounted on the support rod (1) and is used to keep the test rod (2) in a horizontal state.
2. The device for detecting the needle-thread connection strength of animal tendon suture according to claim 1, characterized in that: A limiting member 1 (7) is provided on the measuring block (5), and the limiting member 1 (7) is connected to the measuring block (5) by means of threaded engagement. After passing through the measuring block (5), the limiting member 1 (7) can be tightly pressed against the test rod (2).
3. The needle-thread connection strength detection device for animal tendon suture according to claim 1, characterized in that: The bracket (4) is provided with a buffer member 1 (8), and the buffer member 1 (8) can abut against the test rod (2).
4. The device for detecting the needle-thread connection strength of animal tendon suture according to claim 3, characterized in that: The support rod (1) is provided with a sliding groove (9), the bracket (4) is slidably arranged in the sliding groove (9), and the bracket (4) is provided with a second limiting member (10) for fixing the position of the bracket (4) on the support rod (1).
5. The device for detecting the needle-thread connection strength of animal tendon suture according to claim 1, characterized in that: A connecting seat (11) is arranged at one end of the support rod (1) close to the test rod (2), a connecting plate (12) is arranged at one side of the connecting seat (11) close to the measuring block (5), and a buffer member (13) capable of limiting the rotation range of the test rod (2) is arranged at one end of the connecting plate (12) away from the connecting seat (11).
6. The device for detecting the needle-thread connection strength of animal tendon suture according to claim 1, characterized in that: The clamping member (3) comprises a connecting rod (14), a threading sleeve (15) and a locking sleeve (16); the threading sleeve (15) is provided with a threading hole (19); the connecting rod (14) is connected to the connecting member (6); the threading sleeve (15) comprises a connecting portion (17) and a locking portion (18) which are fixedly connected; the threading hole (19) passes through the connecting portion (17) and the locking portion (18); the connecting portion (17) is connected to an end of the connecting rod (14) away from the connecting member (6); the locking sleeve (16) is mounted on the locking portion (18); and the locking sleeve (16) is used to reduce the diameter of the threading hole (19) at the locking portion (18).
7. The device for detecting the needle-thread connection strength of animal tendon suture according to claim 6, characterized in that: The inner wall of the locking portion (18) is provided with a flexible pad (20).
8. A method for detecting the needle thread connection strength of an animal tendon suture, using the needle thread connection strength detection device for an animal tendon suture as claimed in any one of claims 1 to 7, characterized in that: The steps include: S100: Slide the measuring block (5) to a designated position on the test rod (2), then fix the position of the measuring block (5) on the test rod (2), adjust the position of the bracket (4) to make the test rod (2) horizontal, and fix the end of the needle thread away from the suture needle on the measuring block (5); S200: clamping the suture needle on the needle thread by means of the clamping member (3), and causing the clamping member (3) to flip in a direction away from the test rod (2), thereby pulling the needle thread; S300: When the test rod (2) equipped with the measuring block (5) starts to rotate in a direction away from the bracket (4), the pulling of the clamping member (3) is stopped.