CN216294232U

CN216294232U - Acromioclavicular joint repairing device

Info

Publication number: CN216294232U
Application number: CN202120101177.6U
Authority: CN
Inventors: 缪凤; 王建雄; 胡金贤; 曾达
Original assignee: Double Medical Technology Inc
Current assignee: Double Medical Technology Inc
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2022-04-15
Anticipated expiration: 2031-01-14

Abstract

The utility model relates to a acromioclavicular joint repairing device which comprises a first fixing piece, a sewing rope and a second fixing piece, wherein the first fixing piece is provided with a button plate body, and the button plate body is provided with at least one group of thread passing holes; the sewing rope is woven by yarns, two bundling sections are arranged at the middle part of the sewing rope at intervals, two free ends of the sewing rope respectively penetrate through a through hole of the button plate body, the two free ends of the sewing rope penetrate through the same through hole from the tubular through hole of the bundling section adjacent to the free ends of the sewing rope, and two coils are formed on the other side of the button plate body; the second fixing piece comprises a butterfly-shaped plate body, and the coils on the suture ropes can be clamped into the two clamping grooves from the openings of the two clamping grooves, so that the operation difficulty in the acromioclavicular joint repair operation is reduced, and the iatrogenic injury of a patient is reduced.

Description

Acromioclavicular joint repairing device

Technical Field

The utility model relates to the field of medical instruments, in particular to an acromioclavicular joint repairing device.

Background

Dislocation of acromioclavicular joint is a common disease in the orthopedic field of trauma, is mostly caused by high-energy injuries such as traffic accident injury, falling injury and the like, and accounts for about 5 percent of the dislocation of joints of the whole body. Except for stable subluxation of the acromioclavicular joint, most of the subluxation of the acromioclavicular joint needs surgical treatment, and proper joint micromotion is kept on the basis of ensuring the stability of the joint so as to ensure the good biomechanical property of the acromioclavicular joint. At present, a plurality of surgical methods for treating acromioclavicular dislocation are available, unified knowledge is not available, and the traditional method for treating acromioclavicular dislocation mainly comprises the internal fixation of a clavicle hook steel plate, a kirschner wire, a steel wire and a screw and the like. Because the kirschner wire is easy to break, the nail passage infection rate is high, the treatment of the dislocation of the acromioclavicular joint by the screw belongs to the rigid fixation concept, the stability of the acromioclavicular joint can be effectively maintained, but the acromioclavicular joint completely loses the micromotion capability, and the synchronous and harmonious motion of the scapula and the clavicle is difficult to meet.

In view of the drawbacks of rigid fixation, flexible fixation, represented by Endobutton (double loop micro steel plate) and suture anchor, is increasingly dominating in the treatment of acromioclavicular dislocation. The acromioclavicular ligament rehabilitation robot plays a role in replacing and reconstructing coracoid ligament in the treatment principle, meets the micromotion requirements of the acromioclavicular joint in the vertical and horizontal directions to a certain extent, reduces shoulder pain, and improves the satisfaction degree of patients. However, flexible fixation treatment methods such as the Endobutton (double-loop micro steel plate fixation) and the suture anchor are complex to operate, and the coracoid process needs to be cut and exposed, so that bleeding is increased, the operation time is prolonged, iatrogenic injuries and hospitalization time of patients are increased, and internal fixture slippage is easy to occur, so that operation failure is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a acromioclavicular joint repair device to reduce the operation difficulty in acromioclavicular joint repair operation and reduce iatrogenic injuries of patients.

The specific scheme is as follows:

an acromioclavicular joint repair device comprising:

the first fixing piece is provided with a button plate body, at least one group of wire passing holes are formed in the button plate body, and each group of wire passing holes comprise two through holes penetrating through the button plate body;

the sewing rope is woven by yarns, two bundling sections are arranged at the middle of the sewing rope at intervals, each bundling section is provided with a tubular through hole which extends along the axial direction of the sewing rope, two free ends of the sewing rope respectively penetrate out of one through hole of the button plate body, the bundling sections adjacent to the sewing rope are completely or partially pulled out of the button plate body, the two free ends of the sewing rope penetrate through the same through hole from the tubular through hole of the bundling section adjacent to the sewing rope, and two loops are formed on the other side of the button plate body;

the second mounting, the second mounting includes the butterfly plate body, two draw-in grooves that the interval set up have on the butterfly plate body, each draw-in groove all has the opening that extends to butterfly plate body edge, the coil on the seam rope can both be gone into to two draw-in grooves from the opening card of two draw-in grooves.

Furthermore, two groups of wire passing holes are formed in the button plate body of the first fixing piece, and a sewing rope is installed on each group of the wire passing holes.

Further, the button plate body has a substantially circular shape.

Furthermore, the bottom of the button plate body is provided with a sleeve part extending outwards, the sleeve part is arranged in a hollow mode so that the suture rope can penetrate out of the sleeve part, and the outer diameter of the sleeve part is matched with the aperture of a bone hole drilled in an affected part of a patient so that the sleeve part can be embedded into the bone hole.

Furthermore, a concave cavity is formed in the top surface of the button plate body, the middle of the concave cavity is sunken towards the bottom, and the wire passing hole is formed in the concave cavity.

Furthermore, the edge of the through hole on the button plate body is provided with a chamfer.

Further, the elongation of the stitched rope is less than 2%.

Furthermore, the sewing rope also comprises a traction rope, and the traction rope is connected to the coil of the sewing rope.

Compared with the prior art, the acromioclavicular joint repair device provided by the utility model has the following advantages: the suturing rope in the acromioclavicular joint repairing device provided by the utility model adopts a special self-tightening structure, does not need to be knotted in the operation process, is simple to operate, can complete the operation only through small holes, has low possibility of generating incision complications, and also reduces the pain of patients.

Drawings

FIG. 1 shows a schematic view of a suture strand mounted to a first fastener.

Figure 2 shows a schematic view of a second fixing.

FIG. 3 shows a schematic view of the suture string with a pull string attached.

Figure 4 shows a schematic view of a first fixing.

Fig. 5 shows a schematic view of a suture strand.

Fig. 6A shows a schematic view of drilling holes in the clavicle and coracoid process using a core drill.

FIG. 6B shows the suture string after it has been pulled through the borehole.

Figure 6C shows a schematic view of the installation of a second fastener on the suture strand.

Figure 6D shows the acromioclavicular joint repair device after repositioning the acromioclavicular joint repair.

Detailed Description

To further illustrate the various embodiments, the utility model provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The utility model will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 5, the present embodiment provides an acromioclavicular joint repair device including a first fixing member 1, a suture string 2, and a second fixing member 3.

Wherein, 1 utensil button plate body 10 of first mounting, button plate body 10 has the bottom towards the affected part and the top that sets up relatively with the bottom, button plate body 10 is last to have at least a set of line hole 11 of crossing, and every group crosses line hole 11 and all runs through to two through-holes on the bottom including the top from button plate body 10, defines first through-hole 11a and second through-hole 11b respectively at this embodiment to two through-holes.

The material of the suture rope 2 is woven by the common materials for wound suture and joint ligament repair at present, for example, the suture rope is woven by ultra-high molecular weight polyethylene yarns. The two ends of the sewing rope 2 along the length direction are respectively defined as a first end and a second end, wherein the middle part of the sewing rope 2 is provided with two bunching sections which are arranged at intervals, each bunching section is provided with a tubular through hole which extends along the axial direction of the sewing rope 2, in the embodiment, the bunching section close to the first end of the sewing rope 2 is defined as a first bunching section 22a, the bunching section close to the second end is defined as a second bunching section 22b, the tubular through hole of the first bunching section 22a is defined as a first tubular through hole 23a, and the tubular through hole of the second bunching section 22b is defined as a second tubular through hole 23 b.

The first end of the sewing rope 2 penetrates into the first through hole 11a from the top of the button plate body 10 of the first fixing part 1, and the first bundling section 22a is completely or partially pulled out to the bottom of the button plate body 10 of the first fixing part 1, and the first end of the sewing rope 2 penetrates through the first tubular through hole 23a of the first bundling section 22a, then penetrates through the bottom of the first through hole 11a, and then penetrates out from the top of the first through hole 11a, so that a first coil 24a is formed at the bottom of the button plate body 10.

Similarly, the second end of the suture rope 2 penetrates into the second through hole 11b from the top of the button plate body 10 of the first fixing member 1, and after the second bundling section 22b is completely or partially pulled out to the bottom of the button plate body 10 of the first fixing member 1, the second end of the suture rope 2 penetrates through the second tubular through hole 23b of the second bundling section 22b, then penetrates through the bottom of the second through hole 11b, and then penetrates out from the top of the second through hole 11b, so that a second coil 24b is formed at the bottom of the button plate body 10.

The second fixing member 3 includes a butterfly plate 30, the butterfly plate 30 has two slots 31 disposed at intervals, each slot 31 has an opening 310 extending to an edge of the butterfly plate 30, and the first and second loops on the suture string 2 can be inserted into the two slots 31 from the openings 310 of the two slots 31.

The sewing rope is connected with the first fixing part 1 in the mode, the tubular through hole after weaving can be shrunk and fixed along with the tightening of the thread, the sewing rope forms a coil by utilizing the shrinking principle of the thread hole and the mode of using the thread to sleeve the thread, when the sewing rope is combined with the button plate and the butterfly-shaped plate for use, the outside of the tightening section shrinks and tightens the internal sewing thread during pre-tightening, and finally the adjustable coil is completely tightened to form a dead ring for complete fixation without knotting to realize the fixation of the sewing rope. Therefore, the suture rope in the acromioclavicular joint repair device provided by the embodiment adopts a special self-tightening structure, does not need to be knotted in the operation process, is simple to operate, can complete the operation only through small holes, has low possibility of incision complications, and reduces the pain of patients.

In this embodiment, two sets of thread holes 11 are formed in the button plate 10 of the first fixing member 1, each set of thread holes 11 is provided with one sewing rope 2, the fixing of the double sewing ropes 2 can reduce the internal fixing displacement, and the other sewing rope 2 can still play a role in fixing under the condition that one sewing rope 2 is worn and failed, so that the fixing effect and the fixing effect of the acromioclavicular joint repairing device are improved.

In the present embodiment, the button plate 10 has a substantially circular shape, so that it can be more closely attached to the bone surface of the affected part of the patient, so as to reduce the irritation to the affected part of the patient.

Preferably, the edge of the through hole on the button plate body 10 is designed to be chamfered so as to reduce the abrasion of the sewing rope 2 and prolong the service life of the button plate body.

Preferably, the button plate 10 has a cavity 100 recessed from the middle toward the bottom on the top surface thereof, and the thread passing hole 11 is disposed in the cavity 100, so that after the suture thread 2 is tightened and fixed in the operation and the excess thread is cut off, the thread end of the suture thread 2 is located in the cavity 100 and does not protrude.

Preferably, the button plate 10 has a sleeve portion 12 extending away from the top of the button plate 10 at the bottom thereof, and the middle of the sleeve portion 12 is hollow, so that the sewing string 2 can pass through the sleeve portion 12. The outer diameter of the sleeve part 12 is matched with the diameter of a bone hole drilled on an affected part of a patient, so that the sleeve part 12 can be embedded into the bone hole, the button plate body 10 has better stability relative to a fixing piece designed on the existing plane, the slippage of the button plate body 10 can be avoided, and the exercise of the shoulder joint forward bending, backward stretching and the rotating function of the abduction machine in the postoperative recovery is facilitated.

In this embodiment, the elongation of the suture string 2 is less than 2%, so that the displacement of the fixed clavicle and the coracoid bone can be reduced after the suture string is implanted, the post-operation stability can be increased, and the loosening caused by the characteristics of raw materials can be avoided. For example, the elongation of the ultra-high molecular weight polyethylene yarn commonly used in the prior art is about 5%, in the embodiment, the hot drawing temperature of the ultra-high molecular weight polyethylene yarn is controlled to be 35-40 ℃ in the hot drawing process of the ultra-high molecular weight polyethylene yarn, so that the original elongation of the yarn can be reduced from 5% to below 2%, and the strength is not reduced.

In this embodiment, the butterfly plate 30 of the second fixing member 3 has a shape structure matching with the back of the coracoid process, so that the butterfly plate is more attached to the bone surface of the back of the coracoid process, thereby reducing irritation to the affected part of the patient.

In this embodiment, a traction rope 4 is further included, and the traction rope 4 is connected to the first and/or second coils of the suture rope 2 to assist the suture rope 2 to pass through the bone hole, so as to facilitate the traction operation of the suture rope 2 in the operation.

The operation process of the acromioclavicular joint repair device provided by the embodiment in the operation process is as follows:

first, referring to fig. 6A, a hole is drilled in the affected part of the patient using a core drill 5 to drill a bone hole in each of the clavicle 6 and the coracoid process 7.

Then, referring to fig. 6B, the first fixing member 1 fitted with the suture string 2 is placed on the bone hole of the clavicle 6, and the suture string 2 is pulled through the bone holes of the clavicle 6 and the coracoid process 7.

Referring to fig. 6C, the first and second coils on the suture string 2 are clipped into the clipping groove of the second fixing member 3.

Referring to fig. 6D, the suture string 2 is tightened to reposition the acromioclavicular joint, the second fixing member 3 is attached to the back of the coracoid process, and finally the excess portion of the suture string 2 is cut off to complete the operation.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. An acromioclavicular joint repair device, comprising:

2. The acromioclavicular joint repair device of claim 1, wherein: two groups of wire passing holes are formed in the button plate body of the first fixing piece, and a sewing rope is installed on each group of the wire passing holes.

3. The acromioclavicular joint repair device of claim 1, wherein: the button plate body has a substantially circular shape.

4. The acromioclavicular joint repair device of claim 1, wherein: the button plate comprises a button plate body and is characterized in that the bottom of the button plate body is provided with a sleeve part extending outwards, the sleeve part is arranged in a hollow mode so that the suture rope can penetrate out of the sleeve part, and the outer diameter of the sleeve part is matched with the aperture of a bone hole drilled in an affected part of a patient so that the sleeve part can be embedded into the bone hole.

5. The acromioclavicular joint repair device of claim 1, wherein: the button plate is characterized in that a concave cavity which is sunken towards the bottom direction from the middle part is formed in the top surface of the button plate body, and the wire passing hole is formed in the concave cavity.

6. The acromioclavicular joint repair device of claim 1, wherein: the edge of the through hole on the button plate body is provided with a chamfer.

7. The acromioclavicular joint repair device of claim 1, wherein: the elongation of the stitched rope is less than 2%.

8. The acromioclavicular joint repair device of claim 1, wherein: the sewing rope is characterized by further comprising a traction rope, and the traction rope is connected to a coil of the sewing rope.