CN219439385U - Minimally invasive resetting positioning sighting device for dislocation of acromioclavicular joint - Google Patents

Abstract

The utility model provides a minimally invasive reposition positioning sighting device for dislocation of acromioclavicular joint, which comprises an upper arm used for contacting and connecting with the upper part of a collarbone, a lower arm used for contacting and connecting with the lower part of a coracoid process, an adjusting screw, a guide sleeve, a guide pin, a hollow drill and a soft guide wire; the adjusting screw is respectively connected with one ends of the upper arm and the lower arm in an adjustable way and is used for adjusting the interval between the upper arm and the lower arm so as to reset the acromioclavicular joint; the upper arm is provided with a through hole, and the other end of the lower arm is provided with a blind hole which is concentric with the through hole; the guide sleeve is detachably arranged on the through hole, so that the guide pin passes through the inner cavity of the guide sleeve and contacts the blind hole in a propping manner to establish a preliminary bone path; the hollow drill is used for penetrating through the inner cavity of the guide sleeve and propping against the blind hole so as to perfect the primary bone path; the hollow diamond is provided with a hollow inner cavity along the length direction of the hollow diamond so that the soft guide wire can pull down the suture line of the titanium plate with the loop from the coracoid process to the clavicle through the hollow inner cavity; the utility model can realize the accurate positioning position of the guide pin and establish excellent bone canal.

Description

Minimally invasive resetting positioning sighting device for dislocation of acromioclavicular joint

Technical Field

The utility model relates to the technical field of minimally invasive reset positioning sights, in particular to a minimally invasive reset positioning sight for acromioclavicular joint dislocation.

Background

With the development of technology, various methods for treating acromioclavicular joint by operation are derived at present, including kirschner wire, collarbone hook steel plate, bosworth screw, weaver-Dunn operation and improved methods thereof, coracoid ligament reconstruction by belt loop steel plate method, coracoid ligament reconstruction by tendon implantation, acromioclavicular ligament reconstruction, coracoid ligament combined acromioclavicular joint capsule repair, arthroscope repair and the like, but no recognized operation 'gold standard' is currently available at home and abroad. All operation methods have advantages and disadvantages, for example, the Kirschner wire is easy to be influenced when a patient takes a lateral position to rest due to the fact that the Kirschner wire is close to the skin, so that the Kirschner wire needs to be removed 1-2 months after operation; the effect that the strength in the vertical dimension can not be supported and the like exists in the reconstruction of the acromioclavicular ligament by the internal fixation of the collarbone hook steel plate. Further research shows that the Endobutton steel plate (loop steel plate/button steel plate) is used for fixing the acromioclavicular joint dislocation, so that the biomechanics and the movement track of the acromioclavicular joint as the micro-joint are better recovered, the operation time is not increased, the injury is caused, the function of the acromioclavicular joint is well recovered, and the acromioclavicular joint is a more ideal operation mode compared with the clavicle hook steel plate.

At present, a new operation type minimally invasive treatment for acromioclavicular dislocation is to reconstruct coracoid ligament by using an adjustable belt loop titanium plate under open condition. The operation thinking is that a guide needle is driven into the coracoid ligament from the starting point to the ending point, a bone channel is established, the titanium plate is pulled out by using the guide needle with a wire through the bone channel, and the steel plate for removing the loop is ensured to cross the bone surface below the coracoid substrate and reset the acromioclavicular joint. However, the distance between the guide needle and the bone channel is not easy to control, important tissues such as nerves, blood vessels and lungs are easy to damage, the operation and experience requirements for operators are high, and the difficulty in acromioclavicular joint reduction for people with heavy bodies, strong bodies and the like is high.

Therefore, a minimally invasive reposition positioning sighting device for acromioclavicular joint dislocation is needed, the position of a positioning guide needle can be determined in an assisted mode, an excellent bone path is established, and human tissues are not easy to damage.

Disclosure of Invention

The utility model aims to provide a minimally invasive resetting positioning sighting device for acromioclavicular joint dislocation, and aims to solve the technical problem that the position of a positioning guide needle is not easy to determine in minimally invasive treatment of acromioclavicular joint dislocation.

In order to achieve the aim, the utility model provides a minimally invasive reposition positioning sighting device for dislocation of acromioclavicular joint, which comprises an upper arm used for contacting and connecting with the upper part of collarbone, a lower arm used for contacting and connecting with the lower part of coracoid process, an adjusting screw, a guide sleeve, a guide needle, a hollow drill and a soft guide wire;

the adjusting screw is respectively and adjustably connected with one ends of the upper arm and the lower arm and is used for adjusting the distance between the upper arm and the lower arm and pressing the collarbone and the coracoid process so as to reset the acromioclavicular joint;

the upper arm is provided with a through hole, and the other end of the lower arm is provided with a blind hole which is concentric with the through hole;

the guide sleeve is detachably arranged on the through hole, so that the guide pin passes through the inner cavity of the guide sleeve and props against the blind hole to establish a preliminary bone path;

the hollow drill is used for penetrating through the inner cavity of the guide sleeve and propping against the blind hole so as to perfect the primary bone canal; the hollow diamond flower is provided with a hollow inner cavity along the length direction of the hollow diamond flower, so that the soft guide wire can pull down the suture line of the belt loop titanium plate from the coracoid process to the clavicle to reconstruct the coracoid ligament reset acromioclavicular joint through the hollow inner cavity.

As a further improvement of the scheme, the upper arm comprises an upper arm sleeve arranged at one end of the upper arm, a V-shaped piece connected with the upper arm sleeve, and a connecting piece arranged at the V-shaped opening of the V-shaped piece,

the V-shaped opening end of the V-shaped piece far away from the V-shaped opening end of the V-shaped piece is fixedly connected with the upper arm sleeve; the through hole is arranged in the middle of the connecting piece.

As a further improvement of the scheme, the V-shaped opening ends of the V-shaped pieces are respectively sleeved with a silica gel sleeve for protecting skin and soft tissues contacting with the collarbone.

As a further improvement of the scheme, the lower arm comprises a lower arm sleeve arranged at one end of the lower arm sleeve, and a supporting piece fixedly connected with the lower arm sleeve, the blind hole is formed in the supporting piece and far away from the lower arm sleeve end, and a second internal thread matched with the adjusting rod is arranged in the lower arm sleeve.

As a further improvement of the scheme, the blind hole of the supporting piece is provided with a U-shaped groove, and the groove wall of the U-shaped groove is provided with insections for stably fixing the coracoid process.

As a further improvement of the scheme, the adjusting screw comprises an adjusting handle and a threaded rod which is perpendicularly connected with the adjusting handle to form a T shape, a first external thread section which is in threaded connection with the first internal thread and a second external thread section which is in threaded connection with the second internal thread are arranged on the threaded rod, and the threads of the first external thread section and the second external thread section are different in screwing direction.

As a further improvement of the scheme, the outer walls of the upper arm sleeve and the lower arm sleeve are respectively provided with a mark point for vertically and concentrically marking the through hole of the upper arm and the blind hole of the lower arm.

As a further improvement of the scheme, the guide sleeve is detachably connected with the through hole through a screw pair.

Due to the adoption of the technical scheme, the utility model has the beneficial effects that:

the utility model provides a minimally invasive reposition positioning sighting device for dislocation of acromioclavicular joint, which comprises an upper arm used for contacting and connecting with the upper part of a collarbone, a lower arm used for contacting and connecting with the lower part of a coracoid process, an adjusting screw, a guide sleeve, a guide pin, a hollow drill and a soft guide wire; the adjusting screw is respectively and adjustably connected with one ends of the upper arm and the lower arm and is used for adjusting the distance between the upper arm and the lower arm and pressing the collarbone and the coracoid process so as to reset the acromioclavicular joint; the upper arm is provided with a through hole, and the other end of the lower arm is provided with a blind hole which is concentric with the through hole; the guide sleeve is detachably arranged on the through hole, so that the guide pin passes through the inner cavity of the guide sleeve and contacts the blind hole in a propping manner to establish a preliminary bone path, and the arrangement of the blind hole can effectively protect important tissues below the coracoid process; the hollow drill is used for penetrating through the inner cavity of the guide sleeve and propping against the blind hole so as to perfect the primary bone canal; the hollow diamond is provided with a hollow inner cavity along the length direction of the hollow diamond so that the soft guide wire can pull down the suture line of the titanium plate with the loop from the coracoid process to the clavicle to reconstruct a coracoid ligament resetting acromioclavicular joint; according to the minimally invasive reduction positioning sighting device for dislocation of the acromioclavicular joint, the distance between the upper arm and the lower arm can be adjusted by adjusting the adjusting screw, so that on one hand, the adjustable distance is convenient for meeting the requirements of different patients, on the other hand, the upper arm and the lower arm can apply pressure to the collarbone and coracoid process in the adjusting process, so that the acromioclavicular joint is reduced, in addition, the upper arm and the lower arm are provided with concentric holes, and the guide sleeve is arranged, so that the guide needle is accurately positioned, and the bone canal is convenient to establish, so that the hollow drilling and the soft guide wire operation are facilitated; and the lower arm is provided with a blind hole which is concentric with the through hole, so that the puncture depth of the guide pin can be limited, and tissues below the lower arm can be protected.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings may be obtained from the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a minimally invasive repositioning positioning sight for acromioclavicular joint dislocation, which is disclosed by the utility model;

fig. 2 is a perspective view of a guide sleeve for detaching a minimally invasive reduction positioning collimator for acromioclavicular joint dislocation, which is disclosed by the utility model;

FIG. 3 is a schematic top view of a minimally invasive reduction positioning aimer for acromioclavicular joint dislocation according to the present disclosure;

FIG. 4 is a schematic cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the insert of FIG. 4;

FIG. 6 is a schematic view of a hollow drill, guide pin and soft guide wire used in a minimally invasive reduction of acromioclavicular joint dislocation procedure;

FIG. 7 is a schematic cross-sectional view of a guide sleeve;

reference numerals illustrate:

1. an upper arm; 11. a through hole; 12. an upper arm sleeve; 13. a V-shaped member; 14. a connecting piece; 2. a lower arm; 21. a blind hole; 22. a lower arm sleeve; 23. a support; 24. a U-shaped groove; 3. adjusting a screw; 31. adjusting the handle; 32. a threaded rod; 4. a guide sleeve; 5. identifying points; 6. a guide pin; 7. hollow drilling; 8. a soft guidewire.

The achievement of the object, functional features and advantages of the present utility model will be further described with reference to the drawings in connection with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as upper and lower … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Moreover, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the embodiments, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist, and is not within the scope of protection claimed by the present utility model.

In the above embodiments, those skilled in the art may adopt the prior art for software control, and the present utility model only protects the structure and the connection relationship of the minimally invasive reduction positioning sight for acromioclavicular joint dislocation.

Referring to fig. 1-7, the utility model provides a minimally invasive reduction positioning sighting device for dislocation of acromioclavicular joint, which comprises an upper arm 1 for contacting and connecting with the upper part of collarbone, a lower arm 2 for contacting and connecting with the lower part of coracoid process, an adjusting screw 3, a guide sleeve 4, a guide pin 6, a hollow drill flower 7 and a soft guide wire 8;

the adjusting screw 3 is respectively connected with one ends of the upper arm 1 and the lower arm 2 in an adjustable way and is used for adjusting the distance between the upper arm 1 and the lower arm 2 and pressing the collarbone and the coracoid process so as to reset the acromioclavicular joint;

the upper arm 1 is provided with a through hole 11, and the other end of the lower arm 2 is provided with a blind hole 21 which is concentric with the through hole 11;

the guide sleeve 4 is detachably arranged on the through hole 11, so that the guide pin 6 passes through the inner cavity of the guide sleeve 4 and contacts the blind hole 21 in a propped manner to establish a preliminary bone path;

the hollow drill 7 is used for penetrating through the inner cavity of the guide sleeve 4 and propping against the blind hole 21 so as to perfect the primary bone canal; the hollow diamond 7 is provided with a hollow inner cavity along the length direction thereof, so that the soft guide wire 8 can pull down the suture line of the titanium plate with the loop from the coracoid process to the clavicle to reset the acromioclavicular joint through the hollow inner cavity; according to the minimally invasive reduction positioning sighting device for dislocation of the acromioclavicular joint, the distance between the upper arm 1 and the lower arm 2 can be adjusted by adjusting the adjusting screw 3, on one hand, the adjustable distance is convenient for adapting to the requirements of different patients, on the other hand, the upper arm 1 and the lower arm 2 can apply pressure to the collarbone and coracoid process in the adjusting process, so that the acromioclavicular joint is reduced, in addition, the upper arm 1 and the lower arm 2 are provided with concentric holes, and the guide sleeve 4 is arranged, so that the guide needle 6 is accurately positioned, and a bone path is convenient to establish, thereby facilitating the operation of the hollow drill 7 and the soft guide wire 8; and a blind hole 21 is concentrically arranged in the lower arm 2 and the through hole 11, so that the penetration depth of the guide pin 6 can be limited, and tissues below the lower arm 2 can be protected.

As a preferred embodiment, the upper arm 1 includes an upper arm sleeve 12 provided at one end thereof, a V-shaped member 13 connected to the upper arm sleeve 12, and a connecting member 14 provided at a V-shaped opening of the V-shaped member 13,

a first internal thread matched with the adjusting rod is arranged in the upper arm sleeve 12, and the V-shaped opening end of the V-shaped piece 13 far away from the V-shaped opening end is fixedly connected with the upper arm sleeve 12; the through hole 11 is arranged in the middle of the connecting piece 14; the arrangement ensures that the upper arm 1 is provided with two contact points with the clavicle, and a stable triangular support is formed by combining the contact points of the lower arm 2 and the coracoid process, so that the minimally invasive reduction positioning sighting device for dislocation of the acromioclavicular joint is convenient for forming a stable support with a patient, thereby being beneficial to accurately positioning the guide pin 6 and establishing an excellent bone path;

in some preferred embodiments, the V-shaped opening ends of the V-shaped pieces 13 are provided with positioning protruding points and/or are sleeved with silica gel sleeves, and the positioning protruding points can be effectively contacted with the collarbone of the patient; the setting of silica gel cover is used for protecting skin and soft tissue of contact collarbone department to reduce risks such as soft tissue damage, improve patient's use and experience.

As a preferred embodiment, the lower arm 2 includes a lower arm sleeve 22 disposed at one end thereof, and a support member 23 fixedly connected to the lower arm sleeve 22, the blind hole 21 is disposed at an end of the support member 23 away from the lower arm sleeve 22, and a second internal thread matching with the adjusting rod is disposed in the lower arm sleeve 22;

in some preferred embodiments, the blind hole 21 of the supporting member 23 is provided with a U-shaped groove 24, and the groove wall of the U-shaped groove 24 is provided with insections for firmly fixing the coracoid process; the setting of U type groove 24 can be better bearing coracoid, and be equipped with the insection on the cell wall of U type groove 24 to can stabilize the coracoid more, be convenient for establish accurate location with upper arm 1.

As a preferred embodiment, the adjusting screw 3 includes an adjusting handle 31 and a threaded rod 32 vertically connected with the adjusting handle 31 in a T shape, a first external thread section screwed with the first internal thread and a second external thread section screwed with the second internal thread are provided on the threaded rod 32, and the threads of the first external thread section and the second external thread section are different in direction, so that the setting of the adjusting handle 31 is convenient for a medical staff to operate the positioning sighting device, so as to adjust the distance between the upper arm 1 and the lower arm 2, and to facilitate pressurization; the arrangement of the first external thread section and the second external thread section with different rotation directions, only by rotating the threaded rod 32, the upper arm 1 and the lower arm 2 move towards the closing or separating direction, thereby realizing the adjustment of the distance between the upper arm 1 and the lower arm 2 and pressing the collarbone and the coracoid process to reset the acromioclavicular joint.

As a preferred embodiment, the outer walls of the upper arm sleeve 12 and the lower arm sleeve 22 are provided with identification points 5 for vertically and concentrically identifying the through hole 11 of the upper arm 1 and the blind hole 21 of the lower arm 2; when the two marking points 5 are aligned, it is explained that the through holes 11 and the blind holes 21 of the upper arm 1 and the lower arm 2 are in vertical concentric circles.

As a preferred embodiment, the guide sleeve 4 is detachably connected with the through hole 11 through a screw pair; specifically, the guide sleeve 4 is provided with a hollow inner cavity along the length direction thereof, an external thread is arranged on the outer wall of one end of the guide sleeve 4, and corresponding internal threads are matched with the external thread in the through hole 11, so that the guide sleeve 4 is detachably connected with the through hole 11.

The soft guide wire 8 is made of soft metal, has plasticity, and has a hollow circle at the head, so that the suture line with the titanium plate of the loop can pass through, and the suture line can be pulled down from the coracoid process to the clavicle to reset the acromioclavicular joint

In order to better explain the inventive concept, the following is further described by combining the operation process of the minimally invasive reduction positioning sighting device for dislocation of the acromioclavicular joint, and the specific operation process is as follows:

s1, firstly, placing an upper arm 1 of the sighting device above a collarbone, placing a lower arm 2 below a coracoid process, and enabling a through hole 11 of the upper arm 1 and a blind hole 21 on the lower arm 2 to be opposite to a starting point and a stopping point of a Ji Hui lock ligament, then observing whether the identification points 5 of the upper arm 1 and the lower arm 2 are aligned up and down, and simultaneously adjusting the adjusting screw 3, so that the distance between the upper arm 1 and the lower arm 2 is gradually reduced until pressure is generated on the collarbone and the coracoid process, gradually resetting a acromioclavicular joint, and then screwing a guide sleeve 4 into the through hole 11 of the upper arm 1;

s2, drilling a guide pin 6 into the guide sleeve 4 along the hollow inner cavity to establish a preliminary bone path;

s3, after the guide pin 6 is pulled out, drilling the hollow drill flower 7 into the guide sleeve 4 along the hollow inner cavity to perfecting the preliminary bone canal again;

s4, inserting a soft guide wire 8 with a hollow circle at the head into a hollow inner cavity of the hollow drill 7;

s5, reserving the soft guide wire 8 in a bone canal;

and S6, after the sight is removed, an adjustable belt loop titanium plate is placed at the established bone canal, and the suture line at the coracoid process is pulled out by the head part with a hollow circle of the soft guide wire 8 and is placed into the sight again. And then the suture line of the belt loop titanium plate can be tightened, and the acromioclavicular joint resetting is completed.

The sight provided by the utility model is simple to operate, and can finish the operation, the learning curve is short, the operation time is short, and the like by one person; compared with the traditional operation, the device has the advantages of small wound, capability of protecting tissues such as important neurovascular viscera, high accuracy, less bleeding and high safety coefficient.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather as utilizing equivalent structural changes made in the description of the present utility model and the accompanying drawings or directly/indirectly applied to other related technical fields under the inventive concept of the present utility model.

Claims (8)

1. A minimally invasive resetting positioning sighting device for dislocation of acromioclavicular joint is characterized by comprising an upper arm used for contacting and connecting with the upper part of a collarbone, a lower arm used for contacting and connecting with the lower part of a coracoid process, an adjusting screw, a guide sleeve, a guide pin, a hollow drill and a soft guide wire,

the adjusting screw is respectively connected with one end of the upper arm and one end of the lower arm in an adjustable way and is used for adjusting the interval between the upper arm and the lower arm and pressing the collarbone and the coracoid process so as to reset the acromioclavicular joint;

the upper arm is provided with a through hole, and the other end of the lower arm is provided with a blind hole which is concentric with the through hole;

the guide sleeve is detachably arranged on the through hole, so that the guide pin passes through the inner cavity of the guide sleeve and props against the blind hole to establish a preliminary bone path;

the hollow drill is used for penetrating through the inner cavity of the guide sleeve and propping against the blind hole so as to perfect the primary bone canal; the hollow diamond flower is provided with a hollow inner cavity along the length direction of the hollow diamond flower, so that the soft guide wire can pull down the suture line of the belt loop titanium plate from the coracoid process to the clavicle to reconstruct the coracoid ligament reset acromioclavicular joint through the hollow inner cavity.

2. The minimally invasive reduction positioning sight for acromioclavicular joint dislocation according to claim 1, wherein the upper arm comprises an upper arm sleeve arranged at one end of the upper arm sleeve, a V-shaped piece connected with the upper arm sleeve, and a connecting piece arranged at a V-shaped opening of the V-shaped piece,

the V-shaped opening end of the V-shaped piece far away from the V-shaped opening end of the V-shaped piece is fixedly connected with the upper arm sleeve; the through hole is arranged in the middle of the connecting piece.

3. The minimally invasive reduction positioning sighting device for dislocation of acromioclavicular joint of claim 2, wherein the V-shaped opening ends of the V-shaped pieces are respectively sleeved with a silica gel sleeve for protecting skin and soft tissues contacting the collarbone.

4. A minimally invasive reduction positioning sight for dislocation of acromioclavicular joint according to claim 2 or 3, wherein the lower arm comprises a lower arm sleeve arranged at one end thereof, and a support member fixedly connected with the lower arm sleeve, the blind hole is arranged at the end of the support member far away from the lower arm sleeve, and a second internal thread matched with the adjusting rod is arranged in the lower arm sleeve.

5. The minimally invasive reduction positioning sighting device for dislocation of acromioclavicular joint according to claim 4, wherein a U-shaped groove is formed in the blind hole of the supporting piece, and insections are formed in the groove wall of the U-shaped groove and used for stably fixing coracoid process.

6. The minimally invasive reset positioning sighting device for dislocation of acromioclavicular joint according to claim 4, wherein the adjusting screw comprises an adjusting handle and a threaded rod vertically connected with the adjusting handle in a T shape, a first external thread section in threaded connection with the first internal thread and a second external thread section in threaded connection with the second internal thread are arranged on the threaded rod, and the thread directions of the first external thread section and the second external thread section are different.

7. A minimally invasive reduction positioning sighting device for dislocation of acromioclavicular joint according to any one of claims 1-3, wherein the outer walls of the upper arm sleeve and the lower arm sleeve are provided with identification points for the identification of the vertical concentricity of the through hole of the upper arm and the blind hole of the lower arm.

8. A minimally invasive reduction positioning aimer for acromioclavicular joint dislocation according to any one of claims 1-3 wherein said guide sleeve is detachably connected to said through bore by a threaded pair.