Positioning device for assisting reduction and fixing dislocation of acromioclavicular joint

Abstract

The utility model relates to the technical field of medical instruments, in particular to a positioning device for assisting reduction and fixing acromioclavicular dislocation, which comprises a base plate, an acromion end positioning plate is arranged at one end of the base plate, and a clavicle end positioning block is arranged at the other end of the base plate. Holes are formed in the acromion end positioning plate, acromion end fixing guide needle sleeves are fixedly connected to the positions corresponding to the holes, a plurality of holes are formed in the base plate, and a first coracoshoulder ligament fixing guide needle sleeve, a second coracoshoulder ligament fixing guide needle sleeve and a clavicle end guide needle fixing sleeve are fixedly connected to the positions corresponding to the holes respectively. The positioning device can achieve accurate positioning, damage to blood vessels, nerve tracts and surrounding tissues below the coracoid process is avoided, and operation bleeding is reduced. Due to the fact that the individualized bone tunnel is established, the position where the belt carrier titanium plate is placed is appropriate, the osteolysis phenomenon is reduced, and meanwhile the risk of coracoid fracture is reduced. According to the operation method adopting the positioning device, the operation difficulty is remarkably reduced, the operation time is shortened, and the learning curve of young physicians is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical apparatus and instruments, especially to a positioning device for assisting reduction and fixation of acromioclavicular joint dislocation. BACKGROUND

[0002] In recent years, more and more surgical methods are applied to treat acromioclavicular joint dislocation by using TightRope band loop titanium plate system, but due to the reasons of surgical field and inaccurate positioning, the traditional surgical method has the risk of inaccurate implantation of guide needle position, deviation of implanted loop titanium plate position, dislocation of loop titanium plate, and finally failure of acromioclavicular joint reduction. SUMMARY

[0003] In order to solve the problems existing in the prior art, the utility model provides a positioning device for assisting reduction and fixation of acromioclavicular joint dislocation.

[0004] The positioning device for assisting reduction and fixation of acromioclavicular joint dislocation provided by the utility model adopts the following technical scheme:

[0005] A positioning device for assisting reduction and fixation of acromioclavicular joint dislocation, comprising a base plate, one end of the base plate is provided with a shoulder peak end positioning plate, the other end of the base plate is provided with a clavicle end positioning block, a hole is formed in the shoulder peak end positioning plate and a shoulder peak end fixed guide needle sleeve is fixedly connected at the corresponding hole, a plurality of holes are formed in the base plate and a first coracoclavicular ligament fixed guide needle sleeve, a second coracoclavicular ligament fixed guide needle sleeve and a clavicle end guide needle fixed sleeve are respectively fixedly connected at the corresponding holes.

[0006] By adopting the above technical scheme, the shoulder peak end positioning plate and the clavicle end positioning block have the effect of accurate positioning, the shoulder peak end fixed guide needle sleeve and the clavicle end guide needle fixed sleeve are inserted into the Kirschner wire for temporary fixation, the stable fixation of the positioning device is completed, and finally the first coracoclavicular ligament fixed guide needle sleeve and the second coracoclavicular ligament fixed guide needle sleeve are used to punch holes and install the loop titanium plate; the positioning device can accurately position, avoid damage to the blood vessels, nerve bundles and surrounding tissues under the coracoid process, and reduce surgical bleeding. Since the individualized bone tunnel is established, the position of the inserted loop titanium plate is appropriate, the bone resorption phenomenon is reduced, and the risk of coracoid fracture is also reduced. The surgical method using the positioning device significantly reduces the difficulty of surgery, shortens the operation time, and reduces the learning curve of young doctors.

[0007] Optionally, the clavicle end guide needle fixed sleeve is a clavicle end first guide needle fixed sleeve and a clavicle end second guide needle fixed sleeve.

[0008] By adopting the technical scheme, the two sleeves can improve the fixing effect, and medical staff can use two or one sleeve according to actual needs.

[0009] Optionally, the positioning device is made of 3D printing.

[0010] By adopting the technical scheme, the device is customized according to the three-dimensional reconstruction data of the patient, and the positions of the needle guide channel, the positioning plate and the positioning block are individualized, and the device is 3D printed, so that the device can be quickly and accurately produced.

[0011] Optionally, the positioning device is made of high molecular resin material.

[0012] By adopting the technical scheme, the high molecular resin material has good plasticity and strength, and is suitable for use in this field.

[0013] In summary, the utility model has at least one of the following beneficial technical effects:

[0014] 1. Precise positioning can avoid damage to blood vessels, nerve bundles and surrounding tissues below the coracoid process, reduce surgical bleeding, reduce bone lysis, and reduce the risk of coracoid fracture;

[0015] 2. Significantly reduce the difficulty of surgery, shorten the operation time, and reduce the learning curve of young doctors;

[0016] 3. According to the three-dimensional reconstruction data of the patient, the positions of the needle guide channel, the positioning plate and the positioning block are individualized, and the device is 3D printed, so that the device can be quickly and accurately produced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structure diagram of the positioning device for assisting in resetting and fixing the dislocation of the shoulder joint according to the embodiment of the utility model.

[0018] Marked with 1, base plate; 2, acromion end positioning plate; 3, clavicular end positioning block; 4, acromion end fixed needle sleeve; 5, coracoclavicular ligament first fixed needle sleeve; 6, coracoclavicular ligament second fixed needle sleeve; 7, clavicular end first needle fixed sleeve; 8, clavicular end second needle fixed sleeve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings Figure 1 The utility model will be further described in detail.

[0020] The embodiment of the utility model discloses a kind of positioning devices for assisting in resetting and fixing the dislocation of shoulder joint. Refer to Figure 1The positioning device for assisting in reduction and fixation of shoulder joint dislocation is made of high polymer resin material and is individually manufactured by 3D printing technology, which comprises a base plate 1, a shoulder peak end positioning plate 2 fixed to one end of the base plate 1, and a clavicle end positioning block 3 fixed to the other end of the base plate 1.

[0021] With reference to Figure 1 The shoulder peak end positioning plate 2 is provided with a hole, and a shoulder peak end fixed guide needle sleeve 4 is fixed to the shoulder peak end positioning plate 2 and communicates with the hole. The base plate 1 is provided with holes, and a coracoclavicular ligament first fixed guide needle sleeve 5, a coracoclavicular ligament second fixed guide needle sleeve 6, a clavicle end first guide needle fixed sleeve 7 and a clavicle end second guide needle fixed sleeve 8 are fixed to the base plate 1 and respectively communicate with the holes. The coracoclavicular ligament first fixed guide needle sleeve 5 and the coracoclavicular ligament second fixed guide needle sleeve 6 are used for drilling and placing a loop titanium plate, and the shoulder peak end fixed guide needle sleeve 4, the clavicle end first guide needle fixed sleeve 7 and the clavicle end second guide needle fixed sleeve 8 are used for driving Kirschner wires for temporary fixation, so that the positioning device is stably fixed on the clavicle.

[0022] The implementation principle of the positioning device for assisting in reduction and fixation of shoulder joint dislocation is that the positioning device is manufactured by 3D printing technology and is used for assisting in accurate positioning of a TightRope loop titanium plate.

[0023] Medical three-dimensional reconstruction technology is adopted to perform simulation reduction operation before operation, key positions are simulated with trapezoidal ligament and conical ligament stop points as references, and Kirschner wires are driven from the rear upper to the front lower direction to penetrate the clavicle and coracoid process at positions about 2cm and 4cm from the distal end of the clavicle, combined with a surgical position, drilling and implantation points and directions are designed.

[0024] After the shoulder joint is reset, the positioning device is placed into the prepared anatomical position of the shoulder joint through the shoulder peak end positioning plate 2 and the clavicle end positioning block 3, the shoulder peak end positioning plate 2 and the clavicle end positioning block 3 play the effect of clamping positioning, so as to ensure the accuracy of subsequent drilling positions.

[0025] The TightRope loop titanium plate is introduced into the bone tunnel, the rectangular button-shaped titanium plate is pulled and fixed horizontally after penetrating the coracoid process root, the loop titanium plate is tightened, the Kirschner wires are removed after the above operation is completed, and the reduction of the shoulder joint and the position of the loop titanium plate are observed through C-arm fluoroscopy.

[0026] The positioning device can accurately position, avoid damage to blood vessels, nerve bundles and surrounding tissues below the coracoid process, and reduce surgical bleeding. Since individual bone tunnels are established, the position of the titanium plate with a loop is appropriate, reducing bone resorption and reducing the risk of coracoid fracture. The surgical method using the positioning device significantly reduces the difficulty of the operation, shortens the operation time, and reduces the learning curve of young doctors.

[0027] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made in structure, shape, principle, etc. according to the present application should be covered within the protection scope of the present application.

Claims

1. A positioning device for assisting in the reduction and fixation of acromioclavicular joint dislocation, characterized in that: The application relates to a positioning device for a shoulder joint, which comprises a base plate (1), one end of the base plate (1) is provided with a shoulder peak end positioning plate (2), the other end of the base plate (1) is provided with a clavicle end positioning block (3), the shoulder peak end positioning plate (2) is provided with a hole eye, a shoulder peak end fixed guide needle sleeve (4) is fixedly connected to the hole eye, the base plate (1) is provided with a plurality of hole eyes, and a coracoclavicular ligament first fixed guide needle sleeve (5), a coracoclavicular ligament second fixed guide needle sleeve (6) and a clavicle end guide needle fixed sleeve are respectively fixedly connected to the corresponding hole eyes.

2. The positioning device for assisting reduction and fixation of shoulder dislocation according to claim 1, characterized in that: The clavicle end guide needle fixed sleeve is a clavicle end first guide needle fixed sleeve (7) and a clavicle end second guide needle fixed sleeve (8).

3. The positioning device for assisting reduction and fixation of shoulder dislocation of claim 1, wherein: The positioning device is made of 3D printing.

4. The positioning device for assisting in reduction and fixation of a shoulder dislocation of any one of claims 1-3, wherein: The positioning device is made of high-molecular resin material.

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