Full suture acromioclavicular joint fixation system

Abstract

The invention relates to the technical field of medical instruments, in particular to a full-suture acromioclavicular joint fixing system. A full-suture acromioclavicular joint fixing system comprises a fixing loop, a fixing rope and a traction rope. The fixing loop is of a woven structure, and the first end of the fixing rope is fixed to the fixing rope after penetrating and winding from the radial interior of the fixing loop. A traction ring is arranged on the traction rope, part of the traction rope penetrates through the fixing loop to extend out of the fixing loop, and the traction ring can be connected with the second end of the fixing rope; the fixing loop and the fixing rope are located on the two sides of the bone tunnel, the fixing loop is used for being clamped outside the bone tunnel, the part of the fixing rope is used for winding the coracoid, and the part, stretching out of the fixing loop, of the traction rope is pulled to drive the second end of the fixing rope to penetrate through the fixing loop so that the part of the fixing rope can be bundled to the coracoid. According to the full-suture acromioclavicular joint fixing system, drilling in the coracoid process can be avoided, bone loss is reduced, the fixing loop can be extruded to shrink and be better attached to the clavicle, the upheaval phenomenon is avoided, and therefore the foreign body sensation of a patient can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a full-suture acromioclavicular joint fixation system. Background Art

[0002] In the prior art, one of the treatment methods for acromioclavicular joint dislocation is to use two titanium plates with loops, one of which is placed above the patient's clavicle and below the coracoid process, and holes are drilled on the clavicle and coracoid process, and then a circular suture loop is used to form a non-rigid fixed connection to simulate the reconstruction of the coracoclavicular ligament. The tension of the tightened circular loop has the effect of preventing the coracoclavicular connection from being disconnected, and it can rotate when the shoulder joint moves, achieving anatomical reduction while retaining the micro-motion function of the clavicle.

[0003] However, the coracoid process bone of the acromioclavicular joint is narrow and uneven. When drilling the bone channel, there is a risk that the drill bit may slip off the edge of the bone block. In addition, the titanium plate is large in size, so a larger bone channel needs to be drilled to pass the titanium plate through, which also results in a large amount of bone loss. In addition, the titanium plate is a rigid metal material and has a large difference in elastic modulus with the cortical bone. Under long-term alternating loads, the titanium plate is prone to wear on the bone surface or compression fractures may occur, all of which will cause secondary injuries to the patient and are not conducive to the patient's recovery. Summary of the invention

[0004] The purpose of the present invention is to provide a full-suture acromioclavicular joint fixation system to solve the technical problems in the prior art that holes need to be drilled in the narrow and uneven coracoid process and that metal loops are prone to wear on the smaller coracoid process, even causing secondary risks of fracture.

[0005] The present invention provides a full-suture acromioclavicular joint fixation system, comprising: a fixation loop, a fixation rope and a traction rope; the fixation loop is a braided structure, the first end of the fixation rope is passed through the radial inner part of the fixation loop and then fixed to the fixation rope itself; the traction rope is provided with a traction ring, a part of the traction rope passes through the fixation loop to extend out of the fixation loop, and the traction ring can be connected to the second end of the fixation rope; the fixation loop and the fixation rope are located on both sides of a bone tunnel, and the fixation loop is used to be clamped outside the bone tunnel, and a part of the fixation rope is used to wrap around the coracoid process, and then the part of the traction rope extending out of the fixation loop is pulled to drive the second end of the fixation rope to pass through the fixation loop so that the part of the fixation rope is tied to the coracoid process.

[0006] Furthermore, the first end of the fixing rope is threaded radially inside the fixing loop in a cross-threading manner.

[0007] Furthermore, the fixing loop is flat, and includes a first side and a second side that are oppositely arranged, and also includes a third side and a fourth side that are oppositely arranged; the first end of the fixing rope extends into the fixing loop from the first side, is bent and passed through the middle of the fixing loop, is bent again and passed through the third side, and is bent back to the fourth side to form a wire loop; the first end of the fixing rope is bent from the fourth side and passes through the wire loop and then to the second side, and is bent and extends out of the fixing loop, so that the first end of the fixing rope forms a "cross"-shaped cross-threading pattern radially inside the fixing loop.

[0008] Furthermore, the fixing rope is a braided structure, and the traction rope partially passes through the fixing rope.

[0009] Further, the traction rope includes a first traction rope and a second traction rope, and the traction ring includes a first traction ring and a second traction ring. The first end of the first traction rope is provided with the first traction ring, and the first end of the second traction rope is provided with the second traction ring; the second end of the first traction rope passes through the fixing rope and approaches the second end of the fixing rope, the second end of the second traction rope passes through the fixing rope and the fixing loop in sequence and is located outside the fixing loop, and the first traction ring and the second traction ring are both located outside the fixing rope; after the second end of the fixing rope passes through the first traction ring, the second end of the first traction rope is pulled to enable the second end of the fixing rope to pass through itself to form a first self-locking knot, and after the second end of the fixing rope passes through the second traction ring again, the second end of the second traction rope is pulled to enable the second end of the fixing rope to pass through itself to form a second self-locking knot.

[0010] Further, the first end of the first traction rope is looped back through the first traction rope itself and fixed to form the first traction ring; and / or the first end of the second traction rope is looped back through the second traction rope itself and fixed to form the second traction ring.

[0011] Further, the fixing rope includes a flat belt segment, the second end of the first traction rope passes through the flat belt segment alternately up and down along the thickness direction of the flat belt segment, and the flat belt segment is used to contact the coracoid process.

[0012] Furthermore, the fixing rope also includes a round belt segment, at least the first end of the fixing rope and the second end of the fixing rope are provided with the round belt segment, and the second end of the second traction rope passes through the round belt segment.

[0013] Further, in the thickness direction of the flat belt segment, the first traction ring and the second end of the first traction rope are respectively located on both sides of the flat belt segment, and the first traction ring is located on the side of the flat belt segment close to the fixing loop; in the thickness direction of the fixing loop, the second traction ring and the second end of the second traction rope are respectively located on both sides of the fixing loop, and the first traction ring and the second traction ring are arranged adjacent to each other.

[0014] Further, the distance between the fixing loop and the flat belt segment is 10mm-60mm; and / or, the length of the fixing loop is 2mm-8mm, the width is 2mm-8mm, and the thickness is 0.5mm-3mm; and / or, the width of the flat belt segment is 1mm-6mm, and the diameter of the round belt segment is 0.15mm-0.9mm; and / or, the cross-section of the first traction rope is circular, and the diameter of the first traction rope is 0.15mm-0.9mm; and / or, the cross-section of the second traction rope is circular, and the diameter of the second traction rope is 0.15mm-0.9mm.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: 1. In the all-suture acromioclavicular joint fixation system provided by the present invention, the clavicle and the coracoid process are finally fixed by forming a binding structure with a fixing loop and a fixing rope. Both use sutures and avoid using titanium plates, so that a smaller hole can be drilled on the clavicle to reduce bone loss, and drilling holes on the coracoid process is avoided, which reduces damage to the coracoid process bone block and reduces damage to the patient; moreover, the fixing rope is a flexible part, which can be well adapted to the coracoid process, avoiding the occurrence of bone surface wear or compression fracture, avoiding secondary damage to the patient, and facilitating the patient's recovery. In addition, during the tightening of the fixing rope, since a part of the fixing rope is passed through the radial inner part of the fixing loop, the fixing loop can be squeezed and contracted. The fixing rope is partially passed through and wrapped around the radial inner part of the fixing loop. On the one hand, compared with the structure in which the fixing rope is passed through and wrapped around the outer surface of the fixing loop in the prior art, the fixing rope of the present application is partially located radially inside the fixing loop, so that the fixing loop can fit more closely on the clavicle and avoid the bulge phenomenon, thereby reducing the patient's foreign body sensation; on the other hand, the fixing loop can achieve radial contraction and deformation, and the overall density and rigidity are increased after contraction. The overall structure is more suitable for the acromioclavicular joint and the coracoid process, thereby ensuring the stability of the acromioclavicular joint fixation.

[0016] 2. The first end of the fixing rope passes through the radial inner part of the fixing loop in a "cross" shaped cross threading method. The "cross" shaped cross threading method can make the fixing loop evenly stressed and deform in multiple directions. After the fixing rope is tightened, the fixing loop can maintain a stable flat state, increase the contact area with the bone surface, thereby improving the connection stability between the fixing loop and the bone surface, and the fixing loop can better fit on the bone surface. Even if the fixing loop creeps, it can still be flat, and it can avoid bulging, further reducing the patient's foreign body sensation.

[0017] 3. Through the traction of the first traction rope, the second end of the fixing rope follows the first traction ring through the first line segment of the fixing rope itself (the line segment through which the first traction rope passes), and the fixing rope forms a first self-locking knot. When squeezed by the coracoid process, the friction between the first line segment of the fixing rope and the part of the fixing rope that penetrates the first line segment will be increased; through the traction of the second traction rope, the second end of the fixing rope follows the second traction ring through the second line segment of the fixing rope itself (the line segment through which the second traction rope passes) to form a second self-locking knot. When the fixing rope is tightened, the fixing rope can shrink in the radial direction, and can squeeze the part that passes through itself, which will increase the friction of the overlapping section. After the reinforcement of two self-locking knots, the second end of the fixing rope can be prevented from loosening. After the traction operation is completed during the operation, the excess suture can be directly cut off, and it is no longer necessary to tie a knot to fix the second end of the fixing rope, which simplifies the surgical operation while avoiding the instability of the suture knot and irritation to the soft tissue.

[0018] 4. The flat belt segment is provided in the fixing rope, so that the second end of the first traction rope can be inserted conveniently, and when the first traction rope pulls the fixing rope through the flat belt segment, after the fixing rope is tightened, the flat belt segment is elongated and can be contracted in the width direction, which can give the fixing rope part inserted in the flat belt segment a greater friction force, so that the second end of the fixing rope is fixed more stably and firmly. More importantly, by setting the distance between the fixing loop and the flat belt segment, the flat belt segment can be closely attached to the coracoid process, so that the fixing rope with the flat belt segment can be tied to the coracoid process bone block securely through the tying ring formed by the traction of the first traction rope, and the contact between the flat belt segment and the coracoid process is flexible. Compared with the metal loop plate connection in the prior art, the flat belt segment has friendly contact with the coracoid process and a large contact area. The flat belt segment disperses the stress of the binding part, which is more suitable for fixing the smaller structure of the bone such as the coracoid process.

[0019] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic structural diagram of a full-suture acromioclavicular joint fixation system according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the threading method of the first end of the fixation rope in the all-suture acromioclavicular joint fixation system shown; Figure 3 for Figure 1 A schematic structural diagram of a fixation loop in a full-suture acromioclavicular joint fixation system from a first-person perspective is shown; Figure 4 for Figure 1 A schematic structural diagram of a second perspective of a fixation loop in a full-suture acromioclavicular joint fixation system shown; Figure 5 for Figure 1 The schematic diagram of the structure of the fixation rope in the all-suture acromioclavicular joint fixation system shown; Figure 6 for Figure 1 The schematic diagram of the structure of the fixed loop and fixed rope assembly in the all-suture acromioclavicular joint fixation system shown; Figure 7 for Figure 1 The schematic diagram of the structure of the first traction rope in the all-suture acromioclavicular joint fixation system shown; Figure 8 for Figure 1 The schematic diagram of the first step in the use of the all-suture acromioclavicular joint fixation system is shown; Fig. 9 for Figure 1 The schematic diagram of the second step in the use of the all-suture acromioclavicular joint fixation system is shown; Fig.10 for Figure 1 The schematic diagram of the third step in the use of the all-suture acromioclavicular joint fixation system is shown; Fig.11 for Figure 1 The schematic diagram of the fourth step in the use of the all-suture acromioclavicular joint fixation system is shown; Fig.12 for Figure 1 The schematic diagram of the fifth step in the use of the all-suture acromioclavicular joint fixation system is shown; Fig.13 for Figure 1The schematic diagram of the sixth step in the use of the all-suture acromioclavicular joint fixation system is shown; Fig.14 for Figure 1 The schematic diagram of the seventh step in the use of the all-suture acromioclavicular joint fixation system is shown; Fig.15 for Figure 1 The diagram shown is the eighth step in the use of the all-suture acromioclavicular joint fixation system.

[0022] icon: 1-fixing loop; 11-first side; 12-second side; 13-third side; 14-fourth side; 2-fixing rope; 21-first end of the fixing rope; 22-second end of the fixing rope; 23-flat belt section; 3-first traction rope; 31-first traction ring; 32-second end of the first traction rope; 4-second traction rope; 41-second traction ring; 42-second end of the second traction rope; 5-clavicle; 6-coracoid process; 7- Bone Road. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0025] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] like Figures 1 to 15 As shown, the present invention provides a full-suture acromioclavicular joint fixation system, comprising: a fixation loop 1, a fixation rope 2 and a traction rope; the fixation loop 1 is a braided structure (that is, the fixation loop 1 is braided with multiple strands of yarn), the first end 21 of the fixation rope is passed through the radial direction of the fixation loop 1 (which can be understood as a direction perpendicular to the thickness direction of the fixation loop 1) and then fixed to the fixation rope 2 itself; a traction ring is provided on the traction rope, and part of the traction rope passes through the fixation loop 1 to extend out of the fixation loop 1 (part of the traction rope can be The fixing loop 1 extends radially, and preferably, part of the traction rope extends axially from the fixing loop 1, that is, in the thickness direction of the fixing loop 1, for easy operation), and the traction ring can be connected to the second end 22 of the fixing rope; the fixing loop 1 and the fixing rope 2 are located on both sides of the bone tunnel 7, and the fixing loop 1 is used to be stuck outside the bone tunnel 7, and part of the fixing rope 2 is used to wrap around the coracoid process 6, and the part of the traction rope extending out of the fixing loop is pulled to drive the second end 22 of the fixing rope to pass through the fixing loop 1 so that part of the fixing rope 2 is tied to the coracoid process 6.

[0030] Before the operation, the bone tunnel 7 is established at the designated position of the clavicle 5, and the second end 22 of the fixing rope and a part of the traction rope are passed through the bone tunnel 7, and the fixing loop 1 and the part of the traction rope extending from the fixing loop 1 are left outside the bone tunnel 7; after the second end 22 of the fixing rope passes through the bone tunnel 7, a wire guide (or other tools) can be used to wrap at least a part of the fixing rope 2 around the coracoid process 6, and then the traction ring is connected to the second end 22 of the fixing rope, and the part of the traction rope outside the fixing loop 1 is pulled, and the traction rope drives the second end 22 of the fixing rope to move and finally pass through the fixing loop 1. The first end 21 of the fixing rope is fixed to the fixing rope 2 itself, so the fixing loop 1 and the fixing rope 2 can be tightened by the second end 22 of the fixing rope. After adjusting to a suitable tension state, the second end 22 of the fixing rope is fixed, and the fixing loop 1 is then fixed on the bone surface, and the fixing rope 2 forms a bundle with the coracoid process 6. Under the action of the fixing loop 1 and the fixing rope 2, the clavicle 5 and the coracoid process 6 can be relatively fixed to establish a coracoid-clavicular connection.

[0031] In the full-suture acromioclavicular joint fixation system provided in this embodiment, the clavicle 5 and the coracoid process 6 are finally fixed by forming a binding structure with the fixing loop 1 and the fixing rope 2. Both use sutures and avoid using titanium plates, so that a smaller hole can be drilled on the clavicle 5 to reduce bone loss, and drilling holes on the coracoid process 6 is also avoided, reducing damage to the coracoid process 6 bone block and reducing damage to the patient; moreover, the fixing rope 2 is a flexible member, which can be well adapted to the coracoid process 6, avoiding the occurrence of bone surface wear or compression fracture, avoiding secondary damage to the patient, and facilitating the patient's recovery. In addition, during the tightening process of the fixing rope 2, since a part of the fixing rope 2 is passed through the radial inner part of the fixing loop 1, the fixing loop 1 can be squeezed and contracted. The fixing rope 2 is partially passed through and wrapped around the radial inner part of the fixing loop 1. On the one hand, compared with the structure in which the fixing rope is passed through and wrapped around the outer surface of the fixing loop in the prior art, the fixing rope of the present application is partially located radially inside the fixing loop, so that the fixing loop 1 can fit more closely on the clavicle 5 to avoid the bulge phenomenon, thereby reducing the patient's foreign body sensation; on the other hand, the fixing loop 1 can achieve radial contraction and deformation. After the fixing loop 1 contracts, the overall density and rigidity increase, and the overall structure is more suitable for the acromioclavicular joint and the coracoid process 6, thereby ensuring the stability of the acromioclavicular joint fixation.

[0032] The fixing loop 1 and the fixing rope 2 may be made of ultra-high molecular weight polyethylene or polyester fiber.

[0033] Optionally, the fixing loop 1 and the fixing rope 2 are made of the same material, which can reduce the risk of wear and breakage between the foreign materials and reduce the wear between the fixing loop 1 and the bone surface.

[0034] Based on the above embodiments, the shape of the fixing loop 1 can be a triangle, a circle, an ellipse, a diamond, a pentagon, etc.

[0035] As an alternative, Figure 3 and Figure 4 As shown, the fixing loop 1 is arranged in a flat rectangular shape, has a regular structure, and is easy to process.

[0036] There are many ways to thread the fixing rope 2 through the fixing loop 1, for example, a "M"-shaped threading method.

[0037] As an alternative, Figure 2As shown, the first end 21 of the fixing rope is passed through the radial inner part of the fixing loop 1 in a "cross" shaped cross threading method. The "cross" shaped cross threading method can make the fixing loop 1 evenly stressed and deform in multiple directions. After the fixing rope 2 is tightened, the fixing loop 1 can maintain a stable flat state, increase the contact area with the bone surface, thereby improving the connection stability between the fixing loop 1 and the bone surface, and the fixing loop 1 can better fit on the bone surface and be firmly fixed. Even if the fixing loop 1 creeps, it can still be flat, and it can avoid bulging, further reducing the patient's foreign body sensation.

[0038] Specifically, the fixing loop 1 includes a first side 11 and a second side 12 that are arranged opposite to each other, and also includes a third side 13 and a fourth side 14 that are arranged opposite to each other. The specific process of threading the first end 21 of the fixing rope in the fixing loop 1 in a "cross"-shaped cross threading manner can be: the first end 21 of the fixing rope extends into the fixing loop 1 from the first side 11, passes through the middle of the fixing loop 1 after bending, passes through the third side 13 after bending again, and then bends back to the fourth side 14 to form a wire loop. The first end 21 of the fixing rope is then bent from the fourth side 14, passes through the wire loop and then passes through the second side 12, and then extends out of the fixing loop 1 after bending, so that the first end 21 of the fixing rope forms a "cross"-shaped cross threading manner in the radial inner part of the fixing loop 1.

[0039] The third side 13 and the fourth side 14 of the fixing loop 1 may be hardened (optionally by thermal curing) to prevent the entire braided structure from falling apart.

[0040] On the basis of the above embodiment, the fixing rope 2 is a braided structure, and the traction rope partially passes through the fixing rope 2. In this embodiment, the traction rope partially passes through the fixing rope 2, and the second end 22 of the fixing rope is pulled by the traction rope to move along the path of the traction rope passing through the fixing rope 2, and finally passes through the fixing rope 2 itself. In the process of tightening the fixing rope 2, the fixing rope 2 can shrink in the radial direction, and the part of the fixing rope 2 passing through itself can be squeezed to increase the friction between the two, so that the second end 22 of the fixing rope can be fixed, forming a self-locking of the fixing rope 2, so that the second end 22 of the fixing rope is fixed more stably.

[0041] There can be only one traction rope. After the second end 22 of the fixing rope passes through the bone tunnel 7, the second end 22 of the fixing rope can be guided to wrap around the coracoid process 6 with the help of other tools, and then the second end 22 of the fixing rope is passed through the traction ring of the traction rope (like the eye of a sewing needle), and the traction rope is pulled to drive the second end 22 of the fixing rope to move and tighten.

[0042] As an alternative, Figures 1 to 7As shown, the traction rope includes a first traction rope 3 and a second traction rope 4, and the traction ring includes a first traction ring 31 and a second traction ring 41. The first end of the first traction rope 3 is provided with the first traction ring 31, and the first end of the second traction rope 4 is provided with the second traction ring 41; the second end 32 of the first traction rope passes through the fixing rope 2 and approaches the second end 22 of the fixing rope, and the second end 42 of the second traction rope passes through the fixing rope 2 and the fixing loop 1 in sequence and is located outside the fixing loop 1 (preferably, outside the side of the fixing loop 1 away from the fixing rope 2), and the first traction ring 31 and the second traction ring 41 are both located outside the fixing rope 2; after the second end 22 of the fixing rope passes through the first traction ring 31, the second end 32 of the first traction rope is pulled to realize that the second end 22 of the fixing rope passes through itself to form a first self-locking knot, and after the second end 22 of the fixing rope passes through the second traction ring 41, the second end 42 of the second traction rope is pulled to realize that the second end 22 of the fixing rope passes through itself to form a second self-locking knot.

[0043] In this embodiment, after the bone tunnel 7 is established, the second end 22 of the fixing rope, the first traction rope 3 and a part of the second traction rope 4 are passed through the bone tunnel 7, and then a wire guide (other tools can also be used) is used to go around from below the coracoid process 6 (which can be understood as below the coracoid process 6 in the thickness direction) to above the coracoid process 6 and connect the second end 22 of the fixing rope and the second end 32 of the first traction rope; then the middle part of the fixing rope 2 and the rest of the second traction rope 4 are pulled from below the coracoid process 6 to bypass the coracoid process 6, so that the second end 22 of the fixing rope and the second end 32 of the first traction rope are close to one side of the coracoid process 6 in the width direction, and the first traction ring 31 is close to the other side of the coracoid process 6 in the width direction; then The second end 22 of the fixing rope is passed through the first traction ring 31 from above the coracoid process 6, and the second end 32 of the first traction rope is pulled. When the first traction rope 3 is detached from the fixing rope 2, the second end 22 of the fixing rope passes through the fixing rope 2 itself along the threading path of the first traction rope 3, so that the fixing rope 2 itself forms a ligature ring to fix the coracoid process 6; then the second end 22 of the fixing rope is passed through the second traction ring 41, and the second end 42 of the second traction rope is pulled, so that the second end 22 of the fixing rope passes through the fixing rope 2 itself and the fixing loop 1 along the threading path of the second traction rope 4, and finally the second end 22 of the fixing rope is pulled until the ligature ring is in a suitably tensioned state, and the excess sutures are cut off to complete the fixation.

[0044] In this process, after the second end 22 of the fixing rope follows the first traction ring 31 through the first line segment of the fixing rope 2 itself (the line segment through which the first traction rope 3 passes), the fixing rope 2 forms a first self-locking knot. When squeezed by the coracoid process 6, the friction between the first line segment of the fixing rope 2 and the part of the fixing rope 2 that penetrates the first line segment will be increased; after the second traction rope 4 is pulled, the second end 22 of the fixing rope follows the second traction ring 41 through the second line segment of the fixing rope 2 itself (the line segment through which the second traction rope 4 passes) to form a second self-locking knot. When the fixing rope 2 is tightened, the fixing rope 2 can shrink in the radial direction, and can squeeze the part that passes through itself, which will increase the friction of the overlapping section. After the reinforcement of the two self-locking knots, the second end 22 of the fixing rope can be prevented from loosening. After the traction operation is completed during the operation, the excess suture can be directly cut off, and the second end 22 of the fixing rope no longer needs to be knotted and fixed, which simplifies the surgical operation and avoids the instability of the suture knot and irritation to the soft tissue.

[0045] On the basis of the above embodiment, further, the first traction ring 31 and the first traction rope 3 can be independently provided, and the first traction ring 31 and the first traction rope 3 can be connected and fixed by bundling or heat curing.

[0046] As an optional solution, the first traction rope 3 is a braided structure, and the first end of the first traction rope 3 is wrapped around and passed through the first traction rope 3 itself and fixed (the overlapping part of the first end of the first traction rope 3 and the middle part of the first traction rope 3 can also be thermally cured) to form a first traction ring 31. The first traction ring 31 is formed by the first end of the first traction rope 3, that is, the first traction ring 31 and the first traction rope 3 are integrally formed, which is convenient for processing.

[0047] On the basis of the above embodiment, further, the second traction ring 41 and the second traction rope 4 can be independently provided, and the second traction ring 41 and the second traction rope 4 can be connected and fixed by bundling or heat curing.

[0048] As an optional solution, the second traction rope 4 is a braided structure, and the second end 42 of the second traction rope is wrapped around and passed through the second traction rope 4 itself and fixed (the overlapping part of the second end 42 of the second traction rope and the middle part of the second traction rope 4 can also be thermally cured) to form a second traction ring 41. The second traction ring 41 is formed by the second end 42 of the second traction rope, that is, the second traction ring 41 and the second traction rope 4 are integrally formed, which is convenient for processing.

[0049] The first traction rope 3 and the second traction rope 4 can adopt different structures. Preferably, they adopt the same structure for easy processing.

[0050] The first traction rope 3 and the second traction rope 4 can both be woven with non-absorbable surgical sutures.

[0051] like Figure 1 , Figure 5 and Figure 6 As shown, based on any of the above embodiments, further, the fixing rope 2 includes a flat belt segment 23, and the second end 32 of the first traction rope passes through the flat belt segment 23 alternately up and down along the thickness direction of the flat belt segment 23, and the flat belt segment 23 is used to contact the coracoid process 6.

[0052] In this embodiment, the flat belt segment 23 is provided in the fixing rope 2, so that the second end 32 of the first traction rope can be inserted conveniently, and the fixing rope 2 is pulled through the flat belt segment 23 by the first traction rope 3. After the fixing rope 2 is tightened, the flat belt segment 23 is stretched and contracted in the width direction, which can give a greater friction force to the part of the fixing rope 2 inserted in the flat belt segment 23, so that the second end 22 of the fixing rope is fixed more stably and firmly. More importantly, by setting the distance between the fixing loop 1 and the flat belt segment 23, the flat belt segment 23 can be made to be close to the coracoid process 6, so that the fixing rope 2 with the flat belt segment 23 can be firmly bound to the coracoid process 6 bone block through the binding ring formed by the traction of the first traction rope 3, and the contact area between the flat belt segment 23 and the coracoid process 6 is large, and the flat belt segment 23 disperses the stress of the binding part, which is more suitable for fixing the smaller structure of the bone such as the coracoid process 6.

[0053] The distance L between the fixing loop 1 and the flat belt segment 23 is 10 mm-60 mm (for example, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm or 60 mm, etc.). During the assembly of the fixing loop 1 and the fixing rope 2, after the threading of the second end 22 of the fixing rope is completed, the distance between the fixing loop 1 and the flat belt segment 23 can be changed by pulling the fixing rope 2, and the fixing loop 1 and the flat belt segment 23 are adjusted to a position suitable for the acromioclavicular joint and the coracoid process 6.

[0054] The fixing rope 2 may be configured as a flat belt segment 23 in its entirety.

[0055] As an alternative, Figure 1 , Figure 5 and Figure 6 As shown, the fixing rope 2 further comprises a round belt segment, at least the first end 21 and the second end of the fixing rope are provided with the round belt segment, and the second end 42 of the second traction rope passes through the round belt segment.

[0056] In this embodiment, the first end 21 of the fixing rope is configured as a circular belt segment, which facilitates the first end 21 of the fixing rope to pass through the fixing loop 1 along a set threading method. The second end 22 of the fixing rope is configured as a circular belt segment, which facilitates the second end 22 of the fixing rope to pass through the first traction ring 31 and the second traction ring 41.

[0057] The lengths of the round belt segment and the flat belt segment 23 can be set as needed. There can be one flat belt segment 23, or multiple flat belt segments 23, which are spaced apart along the length direction of the fixing rope 2 and spaced apart by the round belt segment.

[0058] In some embodiments, in the thickness direction of the flat belt segment 23 , the first traction ring 31 and the second end 32 of the first traction rope are located on the same side of the flat belt segment 23 , and the second traction rope 4 is located on the side of the fixing loop 1 .

[0059] As an alternative, Figure 1 As shown, in the thickness direction of the flat belt segment 23, the first traction ring 31 and the second end 32 of the first traction rope are respectively located on both sides of the flat belt segment 23 (for example, Figure 1 In the orientation shown, the first traction ring 31 is located on the upper side of the flat belt segment 23, and the second end 32 of the first traction rope is located on the lower side of the flat belt segment 23). The first traction ring 31 is located on the side of the flat belt segment 23 close to the fixing loop 1; in the thickness direction of the fixing loop 1, the second traction ring 41 and the second end 42 of the second traction rope are respectively located on both sides of the fixing loop 1 (for example, as shown in FIG. Figure 1 In the position shown, the second traction ring 41 is located at the lower side of the fixing loop 1, the second end 42 of the second traction rope extends out of the upper side of the fixing loop 1), and the first traction ring 31 and the second traction ring 41 are arranged adjacent to each other. Such an arrangement facilitates threading and facilitates the second end 22 of the fixing rope to move along the threading path of the traction rope.

[0060] On the basis of the above embodiment, further, the length of the fixing loop 1 is 2mm-8mm (for example: 2mm, 3mm, 4mm, 4.5mm, 5mm, 6mm, 6.5mm, 7mm, 7.5mm or 8mm, etc.), the width is 2mm-8mm (for example: 2mm, 3mm, 4mm, 5mm, 6mm, 7mm or 8mm, etc.), and the thickness is 0.5mm-3mm (for example: 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm or 3mm, etc.).

[0061] On the basis of the above embodiment, further, the width of the flat belt segment 23 is 1mm-6mm (for example: 1mm, 2mm, 3mm, 4.5mm, 5mm, 5.5mm or 6mm, etc.), and the diameter of the round belt segment is 0.15mm-0.9mm (for example: 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm or 0.9mm, etc.).

[0062] On the basis of the above embodiment, further, the cross-section of the first traction rope 3 is circular, and the diameter of the first traction rope 3 is 0.15mm-0.9mm (for example: 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm or 0.9mm, etc.).

[0063] On the basis of the above embodiment, further, the cross-section of the second traction rope 4 is circular, and the diameter of the second traction rope 4 is 0.15mm-0.9mm (for example: 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm or 0.9mm, etc.).

[0064] The following uses some optional schemes to illustrate the use of the full-suture acromioclavicular joint fixation system provided by the present invention (the examples are merely examples and do not limit the use of the full-suture acromioclavicular joint fixation system, and there may be other uses): Step 1: If Figure 8 As shown, a bone tunnel 7 is established at a designated position of the clavicle 5 before the operation. Since the fixation system provided by the present invention is a fixation loop 1, a fixation rope 2 and a traction rope made entirely of sutures, the diameter of the bone tunnel 7 can be smaller, for example, the diameter of the bone tunnel 7 is 0.3-1.3 mm.

[0065] Step 2: If Fig. 9 As shown, after the fixing rope 2, the first traction rope 3 and a part of the second traction rope 4 are passed through the bone tunnel 7, a wire guide is used to go around from the bottom of the coracoid process 6 to the upper part of the coracoid process 6 and connect the second end 22 of the fixing rope and the second end 32 of the first traction rope, and fix the second end 22 of the fixing rope and the second end 32 of the first traction rope as shown in FIG. Fig. 9 The lateral aspect of the coracoid process in the orientation shown.

[0066] Step 3: If Fig.10 As shown in FIG. 1 , the middle portion of the fixing rope 2 and the rest of the first traction rope 3 are pulled from below the coracoid process 6 to bypass the coracoid process 6, so that the flat belt section 23 can be closely attached to the lower side of the coracoid process 6 (such as Fig.10 direction shown).

[0067] Step 4: If Fig.11 As shown, the second end 22 of the fixing rope is passed around the upper side of the coracoid process 6 (as shown in FIG. Fig.11 The first traction rope 3 is inserted into the first traction ring 31 of the first traction rope 3 (in the position shown).

[0068] Step 5: If Fig.12As shown, the second end 32 of the first traction rope is pulled to make the second end 22 of the fixing rope pass through the flat belt section 23 to form a ligature loop, so as to bind the coracoid process 6.

[0069] Step 6: If Fig.13 As shown, the second end 22 of the fixing rope is passed through the second traction ring 41 .

[0070] Step 7: Fig.14 As shown, the second end 42 of the second traction rope is pulled to make the second end 22 of the fixing rope pass through itself and then through the fixing loop 1.

[0071] Step 8: Fig.15 As shown, the second end 22 of the fixing rope is pulled until the ligature ring is in a suitable tension state, and the excess suture is cut off to complete the fixation.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. In the description provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description. In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments means being within the scope of the present invention and forming different embodiments.

Claims

1. A full-suture acromioclavicular joint fixation system, characterized in that: include: retaining loops, retaining ropes and traction ropes; The fixing loop is a braided structure, and the first end of the fixing rope is passed through the radial inner part of the fixing loop and then fixed to the fixing rope itself; a traction ring is provided on the traction rope, and a part of the traction rope passes through the fixing loop to extend out of the fixing loop, and the traction ring can be connected to the second end of the fixing rope; The fixing loop and the fixing rope are located on both sides of the bone tunnel, and the fixing loop is used to be clamped outside the bone tunnel, and a portion of the fixing rope is used to wrap around the coracoid process, and the portion of the traction rope extending out of the fixing loop is pulled to drive the second end of the fixing rope to pass through the fixing loop so that the portion of the fixing rope is tied to the coracoid process.

2. The all-suture acromioclavicular joint fixation system according to claim 1, characterized in that: The first end of the fixing rope is passed through the radial inner part of the fixing loop in a "cross" shaped cross threading manner.

3. The all-suture acromioclavicular joint fixation system according to claim 2, characterized in that: The fixing loop is arranged in a flat shape, and comprises a first side and a second side arranged opposite to each other, and further comprises a third side and a fourth side arranged opposite to each other; The first end of the fixing rope extends from the first side into the fixing loop, is bent and passed through the middle of the fixing loop, is bent again and passed through to the third side, is bent and looped back to the fourth side to form a wire loop, and the first end of the fixing rope is bent from the fourth side and passed through the wire loop and then passed through to the second side, and is bent and extended out of the fixing loop, so that the first end of the fixing rope forms a "cross"-shaped cross-threading pattern radially inside the fixing loop.

4. The all-suture acromioclavicular joint fixation system according to claim 1, characterized in that: The traction rope includes a first traction rope and a second traction rope, and the traction ring includes a first traction ring and a second traction ring, the first end of the first traction rope is provided with the first traction ring, and the first end of the second traction rope is provided with the second traction ring; The second end of the first traction rope passes through the fixing rope and approaches the second end of the fixing rope, the second end of the second traction rope passes through the fixing rope and the fixing loop in sequence and is located outside the fixing loop, and the first traction ring and the second traction ring are both located outside the fixing rope; After the second end of the fixing rope passes through the first traction ring, the second end of the first traction rope is pulled to allow the second end of the fixing rope to pass through itself to form a first self-locking knot. After the second end of the fixing rope passes through the second traction ring, the second end of the second traction rope is pulled to allow the second end of the fixing rope to pass through itself to form a second self-locking knot.

5. The all-suture acromioclavicular joint fixation system according to claim 4, characterized in that: The first end of the first traction rope is looped back through the first traction rope itself and fixed to form the first traction loop; And / or, the first end of the second traction rope is looped back through the second traction rope itself and fixed to form the second traction loop.

6. The all-suture acromioclavicular joint fixation system according to claim 4 or 5, characterized in that: The fixing rope comprises a flat belt segment, the second end of the first traction rope passes through the flat belt segment alternately up and down along the thickness direction of the flat belt segment, and the flat belt segment is used to contact the coracoid process.

7. The all-suture acromioclavicular joint fixation system according to claim 6, characterized in that: The fixing rope further comprises a round belt segment, at least the first end of the fixing rope and the second end of the fixing rope are provided with the round belt segment, and the second end of the second traction rope passes through the round belt segment.

8. The all-suture acromioclavicular joint fixation system according to claim 6, characterized in that: In the thickness direction of the flat belt segment, the first traction ring and the second end of the first traction rope are respectively located on both sides of the flat belt segment, and the first traction ring is located on the side of the flat belt segment close to the fixing loop; in the thickness direction of the fixing loop, the second traction ring and the second end of the second traction rope are respectively located on both sides of the fixing loop, and the first traction ring and the second traction ring are arranged adjacent to each other.

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