A self-locking locking buckle and a screwdriver assembly

Abstract

The utility model provides a kind of self-locking locking buckle and screwdriver assembly, self-locking locking buckle includes locking buckle main body and compression sleeve, first hole and second hole being mutually communicated are equipped in locking buckle main body, first hole is through the side wall of locking buckle main body, the opposite two end portions of cable can pass through first hole in opposite directions, second hole extends from the top end of locking buckle main body to first hole;Compression sleeve is located in second hole to compress the cable in first hole, the end of compression sleeve away from cable is equipped with operating hole.The utility model's self-locking locking buckle, by embedding compression sleeve in locking buckle main body, reaches the effect of self-locking cable, and cable slippage is not prone to occur after operation;And clamp forceps are not used during operation, can avoid the situation of being clamped by clamp forceps during individual operation.Self-locking locking buckle is avoided to rotate while being locked by screwdriver assembly, it is convenient to operate, and it is strong in practicality.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a self-locking locking buckle and screwdriver assembly. Background Technology

[0002] With the advancements in titanium cable surgery, it is increasingly used in the treatment of common fractures and in femoral procedures assisted by hip replacement. The standard procedure involves first tightening the titanium cable, then using clamps to tighten the locking buckle, deforming it to compress the titanium and thus securing the cable.

[0003] The effectiveness of clamping with clamping forceps is greatly affected by the condition of the instruments and the force applied by different surgeons. This can easily lead to slippage of the titanium cable, or, after implantation, the deformed locking clips may fail due to patient weight-bearing, requiring a second surgery. Furthermore, different surgeons apply varying degrees of force when using clamping forceps, resulting in different degrees of deformation of the locking clips and making the clamping effect uncontrollable. There is even a risk of the clip bursting due to excessive force. Utility Model Content

[0004] The purpose of this utility model is to provide a self-locking locking buckle and screwdriver assembly to at least partially solve the technical problems mentioned in the background art.

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

[0006] A self-locking buckle for securing cables passing through it includes:

[0007] The locking buckle body has a first hole and a second hole that are interconnected. The first hole penetrates the side wall of the locking buckle body, and the two opposite ends of the cable can pass through the first hole in opposite directions. The second hole extends from the top of the locking buckle body to the first hole.

[0008] A clamping sleeve is provided in the second hole to clamp the cable in the first hole, and an operating hole is provided at the end of the clamping sleeve away from the cable.

[0009] Optionally, the locking buckle body has two opposing first sides and two opposing second sides, and the first hole penetrates through the first side or through the second side.

[0010] Optionally, the axis of the first hole is perpendicular to the axis of the second hole.

[0011] Optionally, the diameter of the second hole is larger than the width of the first hole.

[0012] Optionally, the first side surface is a curved surface, and the second side surface is a flat surface.

[0013] Optionally, the first hole is an oblong hole, and the width of the first hole is greater than or equal to twice the diameter of the cable.

[0014] Optionally, the second hole is provided with an internal thread, the clamping sleeve is provided with an external thread, and the clamping sleeve is threadedly connected to the second hole.

[0015] Optionally, the operating hole is a plum blossom groove, a hexagonal groove, or a cross groove.

[0016] Optionally, the clamping sleeve is disposed within the second hole and does not protrude from the top surface of the locking buckle body.

[0017] Optionally, the top of the locking buckle body is chamfered.

[0018] Optionally, the two ends of the first hole are chamfered.

[0019] A screwdriver assembly includes a fixed sleeve and a screwdriver for tightening the aforementioned self-locking buckle. The fixed sleeve has a through hole extending along its axial direction and can be fitted over the buckle body. The end of the screwdriver passes through the through hole of the fixed sleeve and can be inserted into the operating hole of the clamping sleeve.

[0020] Optionally, the bottom of the fixing sleeve is provided with a positioning groove, and the inner wall of the positioning groove can fit against the side wall of the locking buckle body.

[0021] Optionally, the end of the screwdriver is provided with a protrusion that matches the operating hole.

[0022] Optionally, the side wall of the fixing sleeve is provided with a handle.

[0023] Optionally, the bottom of the fixing sleeve is provided with a radial through groove, which communicates with the positioning groove for the passage of the cable.

[0024] Optionally, the outer periphery of the positioning groove is larger than the diameter of the through hole.

[0025] Optionally, the height of the positioning groove is not less than the height of the locking buckle body.

[0026] The beneficial effects of this utility model are as follows: The locking buckle of this utility model achieves a self-locking effect on the cable by inserting the compression sleeve into the locking buckle body, making it less likely for the cable to slip off after surgery; and it eliminates the need for clamping forceps during surgery, thus avoiding the possibility of the cable being crushed by clamping forceps during some procedures. Furthermore, this application includes a matching operating tool; the screwdriver assembly prevents the locking buckle from rotating while locking it, making it convenient to operate and highly practical. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0028] Figure 1 This is a schematic diagram of the structure of the self-locking locking buckle according to an embodiment of the present utility model;

[0029] Figure 2 This is a top view of the locking buckle body according to an embodiment of the present utility model;

[0030] Figure 3 for Figure 2 AA section view;

[0031] Figure 4 This is a front view of the clamping sleeve according to an embodiment of the present utility model;

[0032] Figure 5 This is a top view of the clamping sleeve according to an embodiment of the present utility model;

[0033] Figure 6 This is a schematic diagram illustrating the use of the self-locking locking buckle according to an embodiment of the present utility model;

[0034] Figure 7 This is a schematic diagram of the screwdriver assembly and the self-locking buckle used in conjunction in an embodiment of this utility model;

[0035] Figure 8 This is a front view of the fixing sleeve according to an embodiment of the present utility model;

[0036] Figure 9 This is a right view of the fixing sleeve according to an embodiment of the present utility model;

[0037] Figure 10 This is a front view of the screwdriver according to an embodiment of the present invention;

[0038] Figure 11 This is a right view of the screwdriver according to an embodiment of the present invention.

[0039] in:

[0040] 01. Cables; 02. Prosthetic bone;

[0041] 1. Locking buckle body; 11. First hole; 12. Second hole; 13. Chamfer; 14. First side; 15. Second side

[0042] 2. Compression sleeve; 21. Operating hole; 22. External thread;

[0043] 3. Fixing sleeve; 31. Positioning groove; 32. Through groove; 33. Handle; 34. Through hole;

[0044] 4. Screwdriver. Detailed Implementation

[0045] 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.

[0046] This embodiment provides a self-locking buckle for securing cables passing through it, and also includes a matching screwdriver assembly for locking the self-locking buckle. Figures 1-11 As shown.

[0047] The self-locking locking buckle of this embodiment includes a locking buckle body 1 and a pressing sleeve 2, such as Figures 1-7 As shown. The locking buckle body 1 has a first hole 11 and a second hole 12 that are interconnected. The first hole 11 penetrates the side wall of the locking buckle body 1, and the two opposite ends of the cable 01 can pass through the first hole 11 in opposite directions. The second hole 12 extends from the top of the locking buckle body 1 to the first hole 11. The clamping sleeve 2 is located in the second hole 12 to clamp the cable 01 in the first hole 11. The end of the clamping sleeve 2 away from the cable 01 has an operating hole 21. The first hole 11 of the locking buckle body 1 is used to pass the cable 01. Specifically, the cable 01 wraps around the artificial bone 02 once and then passes through the first hole 11 in opposite directions. The two ends of the cable 01 are located at the two ends of the first hole 11. The second hole 12 is used to assemble the clamping sleeve 2. The second hole 12 is connected to the first hole 11, so that after the clamping sleeve 2 is implanted, it can abut against the cable 01 to achieve the purpose of self-locking the cable 01. The setting of the operating hole 21 facilitates the installation and operation of the clamping sleeve 2 and makes it convenient for implantation during surgery.

[0048] The self-locking locking buckle in this embodiment, with the locking buckle body 1 and the clamping sleeve 2 working together, achieves a self-locking effect, making it less likely for the cable to slip off after surgery. Furthermore, since no clamping forceps are used during the procedure, the possibility of the self-locking locking buckle being crushed by clamping forceps can be avoided.

[0049] like Figure 2 As shown, in this embodiment, the locking buckle body 1 has two opposing first side surfaces 14 and two opposing second side surfaces 15, and the first hole 11 penetrates through the first side surface 14 or the second side surface 15. Since the outer wall of the locking buckle body 1 is composed of two opposing first side surfaces 14 and two opposing second side surfaces 15, in other words, the first side surfaces 14 and the second side surfaces 15 are adjacent, the locking buckle body 1 is a non-cylindrical structure as a whole.

[0050] Furthermore, such as Figure 3 As shown, in this embodiment, the first side surface 14 is an arc surface, the second side surface 15 is a plane, and the first hole 11 penetrates through the two opposite arc-shaped first side surfaces 14. Alternatively, the first hole 11 may also penetrate through the two opposite plane second side surfaces 15.

[0051] Of course, in other embodiments, the first side 14 and the second side 15 can be any shape of surfaces that come into contact with each other, as long as there is a dividing line at the point where the first side 14 and the second side 15 come into contact, and the locking buckle body 1 is a non-cylindrical structure as a whole. For example, the first side 14 and the second side 15 are both planes, and the first side 14 and the second side 15 intersect, with a rounded transition at the junction.

[0052] Preferably, such as Figure 3 As shown, in this embodiment, the axis of the first hole 11 is perpendicular to the axis of the second hole 12. Therefore, the clamping sleeve 2 inside the second hole 12 can vertically press the cable 01 inside the first hole 11, resulting in a good vertical locking effect and reducing the risk of the cable 01 slipping out of the locking buckle body 1 after surgery.

[0053] Furthermore, the diameter of the second hole 12 is larger than the width of the first hole 11. As a result, the diameter of the clamping sleeve 2 screwed into the first hole 11 is larger than the width of the first hole 11, thereby increasing the contact area between the end of the clamping sleeve 2 and the cable 01, and thus clamping the cable 01.

[0054] Optionally, such as Figure 1 As shown, in this embodiment, the first hole 11 is an oblong hole, and the width of the first hole 11 is greater than or equal to twice the diameter of the cable 01, so that the two ends of the cable 01 can pass through the first hole 11 in opposite directions.

[0055] Preferably, such as Figure 3 and Figure 4 As shown, in this embodiment, the second hole 12 is provided with an internal thread, and the clamping sleeve 2 is provided with an external thread 22. The clamping sleeve 2 is threadedly connected to the second hole 12. The external thread 22 engages with the internal thread of the second hole 12 and is screwed in, thereby clamping the cable 01 in the first hole 11 and completing the fixation of the cable 01. The clamping sleeve 2 and the locking buckle body 1 are connected by threads to achieve the engagement between the two, which is beneficial to the stability of the connection between the two and facilitates maintaining the clamping force of the clamping sleeve 2 on the cable 01.

[0056] In other embodiments, the clamping sleeve 2 and the second hole 12 can also be connected by a snap-fit ​​structure or by a pin, etc.

[0057] Optionally, the operating hole 21 on the clamping sleeve 2 is a perforated groove, a hexagonal groove, or a cross groove. For example... Figure 5 As shown, in this embodiment, the operating hole 21 is a plum blossom groove.

[0058] Preferably, the compression sleeve 2 is inserted into the second hole 12 without protruding from the top surface of the locking buckle body 1. After the compression sleeve 2 is inserted, its upper end surface is flush with the top surface of the locking buckle body 1 without protruding, which can prevent irritation to the surrounding muscles and is also more aesthetically pleasing.

[0059] Furthermore, the top of the locking buckle body 1 is provided with a chamfer 13, thereby the side of the locking buckle body 1 is gradually connected to the top surface, and there is a slope between the top surface and the side surface, which can prevent the surface of the locking buckle body 1 from causing scratches or secondary damage to the patient's body.

[0060] Optionally, such as Figure 3 As shown, the two ends of the first hole 11 are also chamfered to protect the cable 01.

[0061] This embodiment also provides a screwdriver assembly, such as Figures 7-11 As shown, it includes a fixed sleeve 3 and a screwdriver 4, used to tighten the aforementioned self-locking locking buckle.

[0062] Specifically, the fixing sleeve 3 has a through hole 34 extending along its axial direction. The fixing sleeve 3 can be fitted over the locking buckle body 1. The end of the screwdriver 4 passes through the through hole 34 of the fixing sleeve 3 and can be inserted into the operating hole 21 of the clamping sleeve 2. The screwdriver 4 is used to screw the clamping sleeve 2 into the second hole 12 of the locking buckle body 1. The fixing sleeve 3 is fitted over the outside of the locking buckle body 1 to fix the locking buckle body 1 and prevent the locking buckle body 1 from rotating when the screwdriver 4 screws the clamping sleeve 2. It is convenient to operate and highly practical.

[0063] Optionally, such as Figure 9 As shown, the bottom of the fixing sleeve 3 is provided with a positioning groove 31 that matches the outer wall of the locking buckle body 1, and the inner wall of the positioning groove 31 can fit against the side wall of the locking buckle body 1. In this embodiment, as... Figure 2 As shown, the locking buckle body 1 consists of two opposing first side surfaces 14 and two opposing second side surfaces 15, wherein the first side surfaces 14 are curved surfaces and the second side surfaces 15 are flat surfaces. Correspondingly, the positioning groove 31 of the fixing sleeve 3 is designed to mimic the outer wall of the locking buckle body 1, and also includes two opposing curved surfaces and two opposing flat surfaces, so that the locking buckle body 1 fits perfectly into the positioning groove 31. The locking buckle body 1 and the fixing sleeve 3 cooperate to prevent rotation.

[0064] Preferably, the outer periphery of the positioning groove 31 is larger than the diameter of the through hole 34 of the fixing sleeve 3. The diameter of the through hole 34 is sufficient for the screwdriver 4 to be inserted, so as to avoid the fixing sleeve 3 being too large or the wall thickness being too thin due to the through hole 34 being too large, which would be inconvenient for operation during the operation.

[0065] Preferably, the height of the positioning groove 31 is not less than the height of the locking buckle body 1, so that the locking buckle body 1 is completely located within the positioning groove 31, resulting in good positioning effect. In other embodiments, the height of the positioning groove 31 may also be lower than the height of the locking buckle body 1, as long as the fixing sleeve 3 can stably hold the locking buckle body 1.

[0066] like Figure 11 As shown, the end of the screwdriver 4 has a protrusion that matches the operating hole 21. The shape of the protrusion can be a plum blossom shape, a hexagonal shape, or a cross shape, allowing the end of the screwdriver 4 to penetrate into the operating hole 21 and tighten the clamping sleeve 2, facilitating the installation of the clamping sleeve 2 and making intraoperative implantation easier. This application does not impose specific limitations on the shape of the operating hole 21. In this embodiment, the end of the screwdriver 4 has a plum blossom shape protrusion that matches the operating hole 21.

[0067] Preferably, the side wall of the fixing sleeve 3 is provided with a handle 33, which is convenient for gripping and for the doctor to pick up and operate the fixing sleeve 3.

[0068] like Figures 7-9 As shown, the bottom of the fixing sleeve 3 is provided with a radial through groove 32, which communicates with the positioning groove 31 for the passage of the cable 01. Of course, in other embodiments, when the height of the positioning groove 31 is lower than the height of the locking buckle body 1, a part of the locking buckle body 1 and the cable 01 are exposed outside the fixing sleeve 3, and the through groove 32 can be omitted.

[0069] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the system or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0070] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-locking buckle for securing a cable passing through it, characterized in that, include: The locking buckle body has a first hole and a second hole that are interconnected. The first hole penetrates the side wall of the locking buckle body, and the two opposite ends of the cable can pass through the first hole in opposite directions. The second hole extends from the top of the locking buckle body to the first hole. A clamping sleeve is provided in the second hole to clamp the cable in the first hole, and an operating hole is provided at the end of the clamping sleeve away from the cable.

2. The self-locking locking buckle according to claim 1, characterized in that, The locking buckle body has two opposing first sides and two opposing second sides, and the first hole passes through the first side or through the second side; And / or, the axis of the first hole is perpendicular to the axis of the second hole; And / or, the diameter of the second hole is greater than the width of the first hole.

3. The self-locking locking buckle according to claim 2, characterized in that, The first side is a curved surface, and the second side is a flat surface.

4. The self-locking locking buckle according to claim 1, characterized in that, The first hole is an oblong hole, and the width of the first hole is greater than or equal to twice the diameter of the cable.

5. The self-locking locking buckle according to claim 1, characterized in that, The second hole has an internal thread, and the clamping sleeve has an external thread. The clamping sleeve is threadedly connected to the second hole.

6. The self-locking locking buckle according to claim 1, characterized in that, The operating hole is a plum blossom groove, a hexagonal groove, or a cross groove; And / or, the clamping sleeve is disposed within the second hole and does not protrude from the top surface of the locking buckle body.

7. The self-locking locking buckle according to claim 1, characterized in that, The top of the locking buckle body is chamfered; And / or, the two ends of the first hole are chamfered.

8. A screwdriver assembly comprising a retaining sleeve and a screwdriver for tightening the self-locking buckle according to any one of claims 1-7, characterized in that, The fixing sleeve has a through hole extending along its axial direction. The fixing sleeve can be sleeved on the locking buckle body. The end of the screwdriver can be inserted into the operating hole of the clamping sleeve after passing through the through hole of the fixing sleeve.

9. The screwdriver assembly according to claim 8, characterized in that, The bottom of the fixed sleeve is provided with a positioning groove, and the inner wall of the positioning groove can fit against the side wall of the locking buckle body; And / or, the end of the screwdriver is provided with a protrusion that matches the operating hole; And / or, the side wall of the fixing sleeve is provided with a handle.

10. The screwdriver assembly according to claim 9, characterized in that, The bottom of the fixed sleeve is provided with a radial through groove, which communicates with the positioning groove for the passage of the cable; And / or, the outer periphery of the positioning groove is larger than the diameter of the through hole; And / or, the height of the positioning groove is not less than the height of the locking buckle body.

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