A clamping component for artificial ligaments and a biomechanical testing device for artificial ligaments.

Abstract

This utility model discloses a clamping assembly for artificial ligaments and a mechanical testing device for artificial ligaments, relating to the field of artificial ligament technology. It includes a fixing post and a fixing pressure plate. The fixing pressure plate is used for wrapping the end of the artificial ligament around it and is detachably mounted on the fixing post for pressing the artificial ligament against the fixing post. During the mechanical performance testing of the artificial ligament, the pressure exerted on the artificial ligament can pull the fixing pressure plate to further compress the artificial ligament, thereby converting tension into pressure and providing a more secure fixation.

Description

Technical Field

[0001] This utility model relates to the field of artificial ligament technology, and in particular to a clamping component for artificial ligaments and a mechanical testing device for artificial ligaments. Background Technology

[0002] Currently, there are few mechanical testing devices for artificial ligaments in China, while mechanical testing is necessary during the design and development phase of artificial ligaments. Most existing mechanical testing devices use left and right clamps to hold and fix the two ends of the artificial ligament separately, which is not a secure fixation. In actual operation, the tension applied to the artificial ligament is too large, which can cause the part of the artificial ligament clamped in the clamp to shift, slip, or break, ultimately leading to inaccurate mechanical test data and experimental failure. Moreover, the breakage of the artificial ligament may cause injury to the operator and damage the artificial ligament, leading to increased research and development costs.

[0003] Therefore, this invention develops a clamping component for artificial ligaments and a mechanical testing device for artificial ligaments to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a clamping component for artificial ligaments and a mechanical testing device for artificial ligaments, so as to solve the problems existing in the prior art and fix the artificial ligaments firmly.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a clamping assembly for an artificial ligament, including: a fixing post and a fixing pressure plate. The fixing pressure plate is used for wrapping the end of the artificial ligament around it. The fixing pressure plate is detachably installed on the fixing post and is used to press the artificial ligament onto the fixing post.

[0007] Preferably, the fixing post is provided with an anti-slip groove, and the fixing pressure plate is provided with an anti-slip protrusion that corresponds to and cooperates with the anti-slip groove. The anti-slip protrusion is inserted into the anti-slip groove; a portion of the artificial ligament wrapped around the fixing pressure plate is squeezed between the anti-slip protrusion and the anti-slip groove.

[0008] Preferably, the fixing post is provided with a first through hole for the artificial ligament to pass through, the first through hole passing through the fixing post in the direction of pulling the artificial ligament; after the end of the artificial ligament passes through the first through hole, it is wrapped around the fixing pressure plate.

[0009] Preferably, the fixing plate is provided with a second through hole for the artificial ligament to pass through; the second through hole and the first through hole are connected.

[0010] Preferably, a clamping device is installed on the fixing column, and the clamping device presses against the artificial ligament in a direction perpendicular to the direction of pulling the artificial ligament, for adjusting the tension of the artificial ligament.

[0011] Preferably, the clamping device includes: a first screw; the fixing post is provided with a first threaded hole that is perpendicular to and communicates with the axis of the first through hole; the first screw is installed in the first threaded hole.

[0012] Preferably, the fixing plate and the fixing post are fixed by a second screw; the fixing plate and the fixing post are provided with a second threaded hole.

[0013] Preferably, the fixing plate and the fixing column are provided with two second threaded holes and are fixed by two second screws; the two second threaded holes are arranged along the axial direction of the fixing plate and located on both sides of the second through hole.

[0014] A mechanical testing device for artificial ligaments is also provided, comprising a moving mechanism and two clamping assemblies for artificial ligaments; the two clamping assemblies for artificial ligaments respectively fix both ends of the artificial ligaments; the moving mechanism is connected to the corresponding fixing post, and moves the clamping assemblies by moving the fixing post.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This utility model is equipped with a fixing post and a fixing pressure plate. The fixing pressure plate is used for the end of the artificial ligament to be wrapped around it. The fixing pressure plate is detachably installed on the fixing post and is used to press the artificial ligament onto the fixing post. When the mechanical properties of the artificial ligament are tested, the pressure borne by the artificial ligament can pull the fixing pressure plate to press the artificial ligament tighter, thereby converting the tension into pressure and fixing the artificial ligament more firmly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the artificial ligament mechanical testing device of this utility model;

[0019] Figure 2 This is a schematic diagram of the clamping assembly of this utility model;

[0020] Figure 3This is a schematic diagram of the assembly structure of the fixing column and fixing pressure plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixing column of this utility model;

[0022] Figure 5 This is a structural schematic diagram of the front of the fixed pressure plate of this utility model;

[0023] Figure 6 This is a structural schematic diagram of the back of the fixed pressure plate of this utility model.

[0024] Among them, 1. fixed column; 2. fixed pressure plate; 3. first through hole; 4. first threaded hole; 5. second threaded hole; 6. second through hole; 7. moving mechanism; 8. second screw; 9. first screw. 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] The purpose of this invention is to provide a clamping component for artificial ligaments and a mechanical testing device for artificial ligaments, so as to solve the problems existing in the prior art and fix the artificial ligaments firmly.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] This utility model provides a clamping component for artificial ligaments, such as... Figure 1-5 As shown, it includes: a fixing post 1 and a fixing pressure plate 2. The fixing pressure plate 2 is used for wrapping the end of the artificial ligament around it. The fixing pressure plate 2 is detachably installed on the fixing post 1 and is used to press the artificial ligament onto the fixing post 1. The artificial ligament is wrapped around the fixing pressure plate 2 at least once. The artificial ligament is wrapped around the fixing pressure plate 2 and pressed onto the fixing post 1 by the fixing pressure plate 2, thereby fixing the artificial ligament. When the artificial ligament is subjected to mechanical testing, the artificial ligament is subjected to tensile force. At the same time, because the artificial ligament is wrapped around the fixing pressure plate 2, the artificial ligament will pull the fixing pressure plate 2 to press against the fixing post 1. The greater the tensile force on the artificial ligament, the greater the force of the fixing pressure plate 2 pressing against the fixing post 1, and the tighter the artificial ligament is, thereby firmly fixing the artificial ligament.

[0029] Furthermore, the fixing post 1 is provided with anti-slip grooves, and the fixing pressure plate 2 is provided with anti-slip protrusions that correspond to the anti-slip grooves. The anti-slip protrusions are inserted into the anti-slip grooves. A portion of the artificial ligament wrapped around the fixing pressure plate 2 is squeezed between the anti-slip protrusions and the anti-slip grooves. As a specific embodiment of this invention, the two ends of the fixing post 1 are cuboid structures, which facilitates clamping and fixing the two ends of the fixing post 1. The middle position of the fixing post 1 is a cylindrical structure. Anti-slip grooves are evenly distributed around the circumference of the outer surface of the cylinder. The fixing pressure plate 2 has an arc-shaped structure that matches the cylinder. The end face of the fixing pressure plate 2 that contacts the cylinder is provided with anti-slip protrusions that correspond to the anti-slip grooves. The artificial ligament is wrapped around the fixing pressure plate 2, and the anti-slip protrusions drive the artificial ligament to insert into the anti-slip grooves, thus fixing the artificial ligament. The anti-slip grooves and anti-slip protrusions can make the artificial ligament more firmly fixed.

[0030] Furthermore, in order to keep the artificial ligament in a vertical state during the test, as a specific implementation of this embodiment, the fixing post 1 is provided with a first through hole 3 for the artificial ligament to pass through. The first through hole 3 passes through the fixing post 1 in the direction of pulling the artificial ligament. After the end of the artificial ligament passes through the first through hole 3, it is wrapped around the fixing pressure plate 2. By providing the first through hole 3 on the fixing post 1, the artificial ligament between the two fixing posts 1 can always be kept in a vertical state during the test, so as to accurately measure the mechanical properties of the artificial ligament.

[0031] Furthermore, the fixing plate 2 is provided with a second through hole 6 for the artificial ligament to pass through; the second through hole 6 is connected to the first through hole 3; one end of the artificial ligament passes through the first through hole 3 and then through the second through hole 6, and then wraps around the fixing plate 2; as a specific embodiment of this embodiment, the first through hole 3 is located in the middle position of the fixing post 1, and the second through hole 6 is located in the middle position of the fixing plate 2; the second through hole 6 on the fixing plate 2 can prevent the artificial ligament from sliding along the axial direction of the fixing plate 2, and can facilitate the artificial ligament to wrap around the fixing plate 2; during the wrapping process, one end of the artificial ligament directly passes through the first through hole 3 and the second through hole 6, and the second through hole 6 can limit the artificial ligament, making it convenient to wrap the artificial ligament in the middle position of the fixing plate 2.

[0032] As a specific implementation of this embodiment, in order to reduce scratches on the artificial ligament, both the first through hole 3 and the second through hole 6 are elliptical holes, and the edges of the elliptical holes are rounded.

[0033] Furthermore, a clamping device is installed on the fixing column 1. The clamping device presses against the artificial ligament in a direction perpendicular to the direction of pulling the artificial ligament, in order to assist in fixing the artificial ligament.

[0034] Furthermore, the clamping device includes: a first screw 9; a first threaded hole 4 perpendicular to and communicating with the axis of the first through hole 3 on the fixing post 1; the first screw 9 is installed in the first threaded hole 4; when the artificial ligament is subjected to mechanical testing, the first screw 9 is screwed into the first threaded hole 4, and the end of the first screw 9 abuts against the artificial ligament located in the first through hole 3. By rotating the first screw 9, the tension of the artificial ligament is adjusted so that the artificial ligament is always in a taut state, which helps to fix the artificial ligament and tightly fix the artificial ligament to the fixing plate 2 to prevent the artificial ligament from sliding; as a specific embodiment of this embodiment, the first threaded hole 4 is a through hole and is composed of two sections of third threaded holes symmetrical about the first through hole 3; the first screw 9 can be screwed into the first threaded hole 4 from two directions for convenient use.

[0035] Furthermore, the fixed pressure plate 2 and the fixed column 1 are fixed by the second screw 8; the fixed pressure plate 2 and the fixed column 1 are provided with the second threaded hole 5.

[0036] As a specific implementation of this embodiment, the fixed pressure plate 2 and the fixed column 1 are provided with two second threaded holes 5 and are fixed by two second screws 8; the two second threaded holes 5 are arranged along the axial direction of the fixed pressure plate 2 and are located on both sides of the second through hole 6; the arrangement of the two second threaded holes 5 along the axial direction of the fixed pressure plate 2 can effectively prevent the fixed pressure plate 2 from rotating in the horizontal direction, so that the fixed pressure plate 2 is more firmly fixed on the fixed column 1, thereby making the artificial ligament more firmly fixed.

[0037] This utility model also provides an artificial ligament mechanical testing device, including a moving mechanism 7 and two clamping assemblies for artificial ligaments; two clamping assemblies are provided; the two clamping assemblies respectively fix one end of the artificial ligament; the moving mechanism 7 is connected to the fixing column 1, and moves the clamping assemblies by moving the fixing column 1; as a specific embodiment of this invention, the two clamping assemblies are arranged vertically, the moving mechanism 7 fixes one clamping assembly and moves the other clamping assembly upward in the vertical direction to test the mechanical properties of the artificial ligament; the moving mechanism 7 is prior art and will not be described in detail here.

[0038] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A clamping assembly for an artificial ligament, characterized in that, include: A fixing post and a fixing pressure plate, wherein the fixing pressure plate is used for wrapping the end of the artificial ligament thereon, and the fixing pressure plate is detachably mounted on the fixing post for pressing the artificial ligament onto the fixing post.

2. The clamping assembly for an artificial ligament according to claim 1, characterized in that, The fixed column is provided with anti-slip grooves, and the fixed pressure plate is provided with anti-slip protrusions that correspond to and cooperate with the anti-slip grooves. The anti-slip protrusions are inserted into the anti-slip grooves; a portion of the artificial ligament wrapped around the fixed pressure plate is squeezed between the anti-slip protrusions and the anti-slip grooves.

3. The clamping assembly for an artificial ligament according to claim 1, characterized in that, The fixing post is provided with a first through hole for the artificial ligament to pass through. The first through hole passes through the fixing post in the direction of pulling the artificial ligament. After the end of the artificial ligament passes through the first through hole, it is wrapped around the fixing pressure plate.

4. The clamping assembly for an artificial ligament according to claim 3, characterized in that, The fixed pressure plate is provided with a second through hole for the artificial ligament to pass through; the second through hole and the first through hole are connected.

5. The clamping assembly for an artificial ligament according to claim 3, characterized in that, A clamping device is installed on the fixed column. The clamping device presses against the artificial ligament in a direction perpendicular to the direction in which the artificial ligament is pulled, and is used to adjust the tension of the artificial ligament.

6. The clamping assembly for an artificial ligament according to claim 5, characterized in that, The clamping device includes: a first screw; a first threaded hole that is perpendicular to and communicates with the axis of the first through hole on the fixing post; and the first screw is installed in the first threaded hole.

7. The clamping assembly for an artificial ligament according to claim 4, characterized in that, The fixing plate and the fixing column are fixed by a second screw; the fixing plate and the fixing column are provided with a second threaded hole.

8. The clamping assembly for an artificial ligament according to claim 7, characterized in that, The fixed pressure plate and the fixed column are provided with two second threaded holes and are fixed by two second screws; the two second threaded holes are arranged along the axial direction of the fixed pressure plate and are located on both sides of the second through hole.

9. A biomechanical testing device for artificial ligaments, characterized in that, It includes a moving mechanism and two clamping assemblies for artificial ligaments as described in any one of claims 1 to 8; the two clamping assemblies for artificial ligaments respectively fix both ends of the artificial ligament; the moving mechanism is connected to the corresponding fixing post, and moves the clamping assembly by moving the fixing post.

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