Positioning and guiding device for acromioclavicular joint reduction ligament repair

Abstract

The utility model belongs to the technical field of articular ligament repair, and particularly relates to a positioning guide device for acromioclavicular joint reduction ligament repair, which comprises a double-tooth clamp device and a guide sleeve, the double-tooth clamp device comprises a first clamp and a second clamp, the tails of the first clamp and the second clamp are provided with latches, and the guide sleeve is sleeved on the first clamp and the second clamp. The first clamp head is provided with upper teeth, the upper teeth are fixedly connected with a double-rail arc-shaped sliding rod, the second clamp head is provided with lower teeth, the lower teeth are fixedly connected with a concave arc column, the joint of the concave arc column and the lower teeth is provided with positioning teeth, the far end of the concave arc column is provided with a positioning bent column, and the guide sleeve comprises an outer guide cylinder. The acromioclavicular joint restoration device is convenient for the proceeding of an acromioclavicular joint restoration operation, not only can the acromioclavicular joint be pressurized and restored through the double-tooth clamp device, but also the acromioclavicular joint restoration device can be installed in a guiding manner, and the damage caused by too deep drilling of a kirschner wire or a hollow drill bit to subclavian nerve blood vessels at the lower edge of a coracoid process is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of joint ligament repair, and in particular relates to a positioning guide device for acromioclavicular joint reduction and ligament repair. Background Art

[0002] During the surgical procedure for acromioclavicular joint reduction and ligament repair, a bone tunnel needs to be drilled in the bone spanning the joint. Cables are then secured in the connected tunnels, and looped steel plates are secured to both ends of the bone tunnels and tightened by the cables to achieve reduction and repair of the acromioclavicular joint. During the bone tunnel drilling process, a specialized positioning guide is required for auxiliary positioning, followed by drilling with Kirschner wires. However, the drilling process presents a problem that plagues surgeons: the Kirschner wire needs to penetrate the coracoid process to complete the bone tunnel drilling, and the brachial plexus and subclavian vessels pass through the coracoid process. Drilling too deeply carries a significant risk of damaging the nearby neurovascular system, resulting in a major medical malpractice and irreparable harm to the patient.

[0003] Existing positioning guides for acromioclavicular joint reduction and ligament repair lack features to prevent overdrilling, failing to effectively reduce surgical risks. To protect the brachial plexus and subclavian vessels beneath the coracoid process, the soft tissue surrounding the coracoid process is severely damaged during surgical exposure. Consequently, the positioning process of existing guides is complex and results in significant soft tissue damage around the acromioclavicular joint. Utility Model Content

[0004] The purpose of the present utility model is to address the deficiencies of the existing technology and provide a positioning guide device for an acromioclavicular joint reduction ligament repair device, which can effectively avoid excessive drilling and reduce surgical damage, and is used to solve the problems raised by the above-mentioned background technology, thereby effectively solving the problems existing in the existing technology.

[0005] In order to achieve the above purpose, the specific technical solutions of the present utility model are as follows:

[0006] A positioning guide device for acromioclavicular joint reduction ligament repair, comprising a double-tooth clamp device and a guide sleeve, the double-tooth clamp device comprising a first clamp and a second clamp, the first clamp and the second clamp being hinged together, the first clamp and the second clamp having locking teeth at their tail ends, the first clamp head being provided with upper teeth, the upper teeth being fixedly connected to a double-track arc slide bar, the second clamp head being provided with lower teeth, the lower teeth being fixedly connected to a concave arc column, the concave arc column being provided with positioning teeth at the connection between the lower teeth, and a positioning bent column being provided at the distal end of the concave arc column, the guide sleeve comprising an outer guide cylinder, the lower end of the outer guide cylinder being connected to an arc tube, the arc tube being slidably connected to the double-track arc slide bar.

[0007] As a further configuration of the above solution, the double-track arc-shaped sliding rod includes a group of mutually parallel arc-shaped sliding rods, one end of the arc-shaped sliding rod is fixedly connected to a fixing rod, and the fixing rod is perpendicular to and fixedly connected to the upper teeth.

[0008] As a further arrangement of the above scheme, the concave arc column is an arc-shaped cylinder, and the concave arc column and the double-track arc slide rod are arranged correspondingly up and down. A cut-off arc surface is provided on the inner side of the concave arc column, and Kirschner wire pits are evenly opened on the cut-off arc surface.

[0009] As a further configuration of the above solution, the positioning tooth is conical, the axis of the positioning tooth coincides with the radial diameter line of the concave arc column, the positioning bent column is an arc-shaped concave column, and the positioning bent column is perpendicular to the concave arc column.

[0010] As a further arrangement of the above scheme, the outer guide cylinder is fixedly connected between the two arc-shaped tubes, a sliding hole is opened at the center of the arc-shaped tube, the sliding hole is slidably connected to the arc-shaped sliding rod, a middle guide cylinder is arranged in the outer guide cylinder, an inner guide cylinder is arranged in the middle guide cylinder, and a guide needle guide hole is opened on the inner guide cylinder.

[0011] As a further configuration of the above solution, the guide needle guide hole of the inner guide cylinder always points to the center of or on the line connecting the two ends of the concave arc column after the acromioclavicular joint is reduced.

[0012] The utility model has the following beneficial effects:

[0013] 1. The double-tooth clamp device cooperates with the guide sleeve to smoothly reduce the dislocated acromioclavicular joint. At the same time, the positioning bend column and positioning teeth on the concave arc column can clamp and locate the bone surface of the lower end of the coracoid process. The guide sleeve can smoothly insert the Kirschner wire guide needle into the bone channel, making the operation convenient.

[0014] 2. The concave arc column and Kirschner wire pit prevent the Kirschner wire guide needle and drill bit from drilling too deep, effectively protecting the blood vessels and nerves under the coracoid process.

[0015] 3. The concave arc column design is conducive to reserving space between the bone surfaces at the lower end of the coracoid process, making it easier for the acromioclavicular joint repair device to be squeezed in and flipped from the outside of the concave arc column.

[0016] The utility model is mainly convenient for the acromioclavicular joint repair surgery. It can not only reposition the acromioclavicular joint by applying pressure through a double-tooth clamp device, but also guide the installation of an acromioclavicular joint repair device, effectively preventing the nerves and blood vessels under the coracoid process and clavicle from being damaged by Kirschner wires or hollow drill bits, and ensuring the safety of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 This is a schematic diagram of a double-tooth clamp device of the present utility model;

[0020] Figure 4 This is a schematic diagram of the guide sleeve of the present utility model.

[0021] 1. First clamp; 2. Second clamp; 3. Clamping teeth; 4. Lower teeth; 5. Upper teeth; 6. Concave arc column; 601. Cut-off arc surface; 7. Positioning bent column; 8. Positioning teeth; 9. Double-track arc slide; 901. Arc slide; 902. Fixed rod; 10. Inner guide cylinder; 11. Middle guide cylinder; 12. Outer guide cylinder; 13. Guide needle guide hole; 14. Arc tube; 1401. Sliding hole; 15. Kirschner wire pit; 16. Kirschner wire. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Figures 1 to 4 , and describes the application in detail with reference to embodiments.

[0024] like Figure 1 、 Figure 2 As shown, this embodiment discloses a positioning guide device for acromioclavicular joint reduction ligament repair, including a double-tooth clamp device and a guide sleeve, the double-tooth clamp device includes a first clamp 1 and a second clamp 2, the first clamp 1 and the second clamp 2 are hinged together, the first clamp 1 and the second clamp 2 are provided with a clamping tooth 3 at the tail, the first clamp 1 is provided with an upper tooth 5 at the head, and the upper tooth 5 is fixedly connected to a double-track arc slide 9, the second clamp 2 is provided with a lower tooth 4 at the head, and a concave arc column 6 is fixedly connected to the lower tooth 4, a positioning tooth 8 is provided at the connection between the concave arc column 6 and the lower tooth 4, and a positioning bent column 7 is provided at the distal end of the concave arc column 6, the guide sleeve includes an outer guide cylinder 12, the lower end of the outer guide cylinder 12 is connected to an arc tube 14, and the arc tube 14 is slidably connected to the double-track arc slide 9.

[0025] like Figure 3As shown, the double-track arc slide 9 includes a group of parallel arc slides 901, one end of the arc slide 901 is fixedly connected to a fixed rod 902, the fixed rod 902 is perpendicular to the upper tooth 5 and fixedly connected, the concave arc column 6 is an arc-shaped cylinder, the concave arc column 6 and the double-track arc slide 9 are arranged correspondingly above and below, a cut-off arc surface 601 is provided on the inner side of the concave arc column 6, and Kirschner wire pits 15 are evenly opened on the cut-off arc surface 601, the positioning tooth 8 is conical, and the axis of the positioning tooth 8 coincides with the radial diameter line of the concave arc column 6, the positioning bent column 7 is an arc-shaped concave column, and the positioning bent column 7 is perpendicular to the concave arc column 6.

[0026] like Figure 1 、 Figure 4 As shown, the outer guide cylinder 12 is fixedly connected between the two arc tubes 14, and a sliding hole 1401 is opened at the center of the arc tube 14. The sliding hole 1401 is slidably connected to the arc-shaped slide rod 901. A middle guide cylinder 11 is arranged in the outer guide cylinder 12, and an inner guide cylinder 10 is arranged in the middle guide cylinder 11. A guide needle guide hole 13 is opened on the inner guide cylinder 10, and a Kirschner wire 16 is arranged in the guide needle guide hole 13. The guide needle guide hole 13 of the inner guide cylinder 10 points to the center or the line connecting the two ends of the concave arc column 6 during the clamping and locking process, ensuring that no matter how the arc tube 14 slides on the double-track arc slide rod 9, the needle head of the Kirschner wire 16 always falls on the cut-off arc surface 601, preventing the Kirschner wire 16 guide needle and drill bit from drilling too deep, and effectively protecting the blood vessels and nerves under the coracoid process.

[0027] The working process of the present invention is as follows: through C-arm fluoroscopy, the coracoid process and the clavicle coracoclavicular ligament are located. An incision of about 3 cm is made in the distal part of the clavicle parallel to the clavicle to expose the clavicle. An incision of about 2 cm is made longitudinally from the tip of the coracoid process to the distal side. The coracobrachialis muscle and the biceps brachii tendon are longitudinally split. The lower teeth of the reduction guide device are inserted. The positioning bent column and positioning teeth of the lower teeth are placed on the lower edge of the coracoid process. The concave arc column 6 protects the nerves and blood vessels during the operation. The upper teeth 5 of the reduction guide device are placed through the clavicle incision. The outer guide cylinder 12 is adjusted. The outer guide cylinder 12 slides on the double-track arc slide 9 through the arc tube 14 to move the Kirschner wire 16 to the specified position. At the same time, a hole is drilled in the center of the clavicle. The dislocated acromioclavicular joint is clamped by a double-tooth clamp device and fixed by the clamping teeth 3. At this time, the outer guide cylinder 12 is fixed and the inner guide is installed. The kirschner wire 16 is inserted into the guide pin guide hole 13 on the inner guide sleeve 10. When the kirschner wire 16 drills the clavicle and the coracoid process, the double-track arc slide bar 9 is corresponding to the concave arc column 6. The kirschner wire 16 slides with the midpoint of the line connecting the two ends of the concave arc column 6 as the center of the circle, ensuring that the kirschner wire 16 is smoothly inserted into the center of the coracoid process and that the tip of the kirschner wire 16 is limited to the kirschner wire pit 15 on the cut-off arc surface 601. The inner guide sleeve 10 is removed and a hollow drill is used to expand the bone hole. The hollow drill also stops at the cut-off arc surface 601. The guide pin and drill are removed and the acromioclavicular joint repair device is implanted through the bone hole using a plate holder. The acromioclavicular joint repair device is squeezed in through the outside of the concave arc column 6 and turned over. The plate holder is removed and the tendon line is pulled. The middle guide sleeve 11 is removed to complete the implantation and fixation of the acromioclavicular joint repair device.

[0028] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A positioning guide device for acromioclavicular joint reduction and ligament repair, comprising a double-tooth clamp device and a guide sleeve, wherein the double-tooth clamp device comprises a first clamp and a second clamp, the first clamp and the second clamp being hinged together, and the first clamp and the second clamp having teeth at their tail ends, characterized in that: The first clamp head is provided with upper teeth, and a double-track arc slide rod is fixedly connected to the upper teeth. The second clamp head is provided with lower teeth, and a concave arc column is fixedly connected to the lower teeth. Positioning teeth are provided at the connection between the concave arc column and the lower teeth, and a positioning bent column is provided at the far end of the concave arc column. The guide sleeve includes an outer guide cylinder, and the lower end of the outer guide cylinder is connected to an arc tube, and the arc tube is slidably connected to the double-track arc slide rod.

2. The positioning guide device for acromioclavicular joint reduction and ligament repair according to claim 1, characterized in that: The double-track arc-shaped sliding rod comprises a group of mutually parallel circular arc-shaped sliding rods, one end of the circular arc-shaped sliding rod is fixedly connected to a fixing rod, and the fixing rod is perpendicular to and fixedly connected to the upper teeth.

3. The positioning guide device for acromioclavicular joint reduction and ligament repair according to claim 1, characterized in that: The concave arc column is an arc-shaped cylinder, and the concave arc column and the double-track arc slide bar are arranged correspondingly up and down. A cut-off arc surface is provided on the inner side of the concave arc column, and Kirschner wire pits are evenly opened on the cut-off arc surface.

4. The positioning guide device for acromioclavicular joint reduction and ligament repair according to claim 3, characterized in that: The positioning teeth are conical, the axis of the positioning teeth coincides with the radial diameter line of the concave arc column, the positioning bent column is an arc-shaped concave column, and the positioning bent column is perpendicular to the concave arc column.

5. The positioning guide device for acromioclavicular joint reduction and ligament repair according to claim 3, characterized in that: The outer guide cylinder is fixedly connected between the two arc tubes. A sliding hole is opened at the center of the arc tube. The sliding hole is slidably connected to the arc-shaped sliding rod. A middle guide cylinder is arranged in the outer guide cylinder. An inner guide cylinder is arranged in the middle guide cylinder. A guide needle guide hole is opened on the inner guide cylinder.

6. The positioning guide device for acromioclavicular joint reduction and ligament repair according to claim 5, characterized in that: The guide pin guide hole of the inner guide cylinder always points to the center of the line connecting the two ends of the concave arc column or the line connecting the two ends after the acromioclavicular joint is reduced.

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