CN217244643U - Remaining coracoid ligament formula oblique coracoid process cuts guiding tool of bone - Google Patents

Abstract

The utility model relates to the field of medical appliances, in particular to a guiding tool for retaining coracoid ligament type oblique coracoid osteotomy, which comprises a top plate, a side plate, a handle and a positioning needle; the side plate is connected to the right side of the top plate and extends downwards, a through hole is formed in the front portion of the top plate, the positioning needle is detachably mounted in the through hole and extends to the position below the top plate, and the handle is connected to the top plate and extends upwards; the roof is provided with the many guide ways that turn right the rear from its left place ahead and extend, and the guide way all runs through the thickness direction of roof board, and the contained angle between each guide way and the curb plate is all inequality. The guide tool for retaining the coracoid ligament type oblique coracoid process osteotomy can reduce the occurrence of deviation according to the direction during osteotomy, and improve the operation efficiency and success rate.

Description

Remaining coracoid ligament formula oblique coracoid process cuts guiding tool of bone

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a direction instrument of keeping coracoid ligament formula oblique coracoid process osteotomy.

Background

Shoulder joint dislocation is the most common joint dislocation in clinic, most of which occurs in young and strong years, and recurrent shoulder joint dislocation is a type of shoulder joint dislocation, and patients can dislocate for several times or dozens of times before operation, and dislocation is the most common before operation. As early as 1954, a coracoid osteotomy was proposed to treat shoulder dislocation and was considered safe and effective.

The coracoid process is connected with the coracoid ligament, and in the past, before the coracoid process cuts the bone, the connection between the coracoid ligament and the coracoid process needs to be cut off; with the continuous development of the technology and the continuous accumulation of the operation experience, the coracoid osteotomy can be performed by adopting an oblique osteotomy mode at present. The osteotomy method using the oblique osteotomy is shown in fig. 1, in which an osteotomy line 03 is obliquely arranged, and the coracoid ligament 02 is not injured when the coracoid 01 is osteotomy-cut.

Before oblique osteotomy is carried out, generally, a patient is photographed, an optimal osteotomy angle is calculated in vitro according to a photographing result, then, an osteotomy operation is carried out according to a calculation result, and the osteotomy angle is different under different conditions. In the actual operation process, it is difficult to ensure that the pendulum always keeps the correct direction for osteotomy, and even fracture can be caused when the direction deviates greatly. For this reason, it is necessary to design an auxiliary tool to guide the osteotomy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direction instrument that remains coracoid ligament formula oblique coracoid process cuts bone aims at solving the coracoid process oblique when cutting bone the skew problem of pendulum according to.

In order to achieve the above purpose, the utility model provides a guiding tool for retaining coracoid ligament type oblique coracoid osteotomy, which comprises a top plate, a side plate, a handle and a positioning needle; the side plate is connected to the right side of the top plate and extends downwards, a through hole is formed in the front portion of the top plate, the positioning needle is detachably mounted in the through hole and extends to the position below the top plate, and the handle is connected to the top plate and extends upwards; the roof is provided with the many guide ways that turn right the rear and extend from its left place ahead, the guide way all runs through the roof thickness direction, each the guide way with contained angle between the curb plate is all inequality.

Further, the plurality of guide grooves all point to the same point, which is located at the front left of the top plate.

Furthermore, the included angle between the guide grooves and the side plate is 45-65 degrees.

Furthermore, the top plate is provided with five guide grooves, and included angles between the five guide grooves and the side plate are respectively 45 degrees, 50 degrees, 55 degrees, 60 degrees and 65 degrees.

Further, the total width of the top plate in the left-right direction is 8-10mm, and the total length in the front-rear direction is 16-20 mm.

Further, the downward extending depth of the positioning needle is 3-6 mm.

Further, the depth of the downward extension of the side plates is 8-9 mm.

Further, the width of the guide groove is 0.8-1.2 mm.

Furthermore, the aperture of the through hole is 0.8-1.2 mm.

Furthermore, the through holes and the positioning pins are provided with two groups in a matching way, and the connecting line of the two positioning pins is perpendicular to the side plate.

The utility model provides a keep coracoid ligament formula oblique coracoid process to cut direction instrument of bone, during the use, pull down the pilot pin earlier, then paste roof and curb plate respectively tight coracoid process's top and lateral part, later remove this direction instrument along the fore-and-aft direction, until moving to the ideal position, reinsert the pilot pin to coracoid process the place ahead again, carry out preliminary positioning to the direction instrument; when in osteotomy, the handle is held by hand to fix the whole guiding tool, the optimal guiding groove is selected according to the calculation result, and the osteotome and the pendulum are guided by the optimal guiding groove to perform osteotomy operation, so that the situation of direction deviation of the pendulum during osteotomy can be reduced, and the operation efficiency and success rate are improved.

Drawings

FIG. 1 is a diagrammatic schematic view of a diagonal osteotomy;

fig. 2 is a first perspective view of the guiding tool for retaining coracoid ligament oblique coracoid osteotomy of the present invention;

fig. 3 is a schematic perspective view of the guiding tool for retaining coracoid ligament oblique coracoid osteotomy of the present invention;

fig. 4 is a top view of the present invention of a guide tool for retaining the coracoid ligament oblique coracoid osteotomy.

[ description of reference ]

01-coracoid process, 02-coracoid ligament, 03-osteotomy line;

1-top plate, 11-guide groove;

2-side plate;

3-a handle;

4-positioning needle.

Detailed Description

The present invention will be described in detail with reference to the following specific examples.

In the present application, when directional terms are used, they are used for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the scope of the invention in any way.

In the present invention, unless otherwise explicitly specified or limited, when terms such as "disposed on", "connected to" are present, these terms should be interpreted broadly, for example, as being either fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other.

The utility model provides a guiding tool for retaining coracoid ligament type oblique coracoid osteotomy, as shown in figures 2 to 4, which comprises a top plate 1, a side plate 2, a handle 3 and a positioning needle 4; the side plate 2 is connected to the right side of the top plate 1 and extends downwards, a through hole is formed in the front portion of the top plate 1, the positioning needle 4 is detachably mounted in the through hole, the positioning needle 4 extends to the lower portion of the top plate 1, and the handle 3 is connected to the top plate 1 and extends upwards; roof 1 is provided with many guide ways 11 that extend from its left place ahead to right rear, and guide ways 11 all run through the thickness direction of roof 1, and the contained angle between each guide way 11 and the curb plate 2 is all inequality.

Based on the structure arrangement, when the guiding tool is used, the positioning needle 4 is firstly detached, then the top plate 1 and the side plate 2 are respectively attached to the top and the side of the coracoid process, then the guiding tool is moved along the front-back direction until the guiding tool is moved to an ideal position, and then the positioning needle 4 is reinserted to the front of the coracoid process to preliminarily position the guiding tool; when cutting bones, the handle 3 is held to fix the whole guiding tool, the optimal guiding groove 11 is selected according to the calculation result, and the osteotome and the pendulum are guided by the optimal guiding groove 11 to cut bones, so that the situation of direction deviation of the pendulum during cutting bones can be reduced, and the operation efficiency and the success rate are improved.

In the present embodiment, the plurality of guide grooves 11 are all directed to the same point, which is located at the front left of the top plate 1. The included angle between the plurality of guide grooves 11 and the side plate 2 is 45-65 degrees. Preferably, the top plate 1 is provided with five guide grooves 11, and the included angles between the five guide grooves 11 and the side plate 2 are 45 °, 50 °, 55 °, 60 °, and 65 °, respectively.

In the present embodiment, the total width of the top plate 1 in the left-right direction is 8 to 10mm, preferably 9.5 mm. The total length in the front-rear direction is 16-20mm, preferably 18.6 mm. The depth of the downward extension of the positioning pin 4 is 3-6mm, preferably 4 mm. The depth to which the side plates 2 extend downwards is 8-9mm, preferably 8.2 mm. The width of the guide groove 11 is 0.8-1.2mm, preferably 1 mm. The diameter of the through-hole is 0.8-1.2mm, preferably 1.2 mm. The size structure is matched with the size of the coracoid process in the common coracoid process osteotomy operation, the application range is wider, and the injury to other tissues of a patient is less.

In this embodiment, two sets of the through holes and the positioning pins 4 are arranged in a matching manner, and a connecting line of the two positioning pins 4 is perpendicular to the side plate 2. Two positioning pins 4 are respectively vertical to the top plate 1, and the connection line of the two positioning pins 4 is vertical to the side plate 2, so that more accurate positioning can be provided, and the guiding tool cannot easily deflect or shift after the positioning pins 4 are inserted into the coracoid for positioning.

In this embodiment, handle 3 is the T font, conveniently grips, and the projection of handle 3 on roof 1 staggers with guide way 11, avoids handle 3 to influence the operation of osteotome and pendulum data. Preferably, a circular arc notch is formed at the front left portion of the top plate 1, so that the front left portions of all the guide grooves 11 are more neat and beautiful.

In conclusion, the guide tool for retaining the coracoid ligament type oblique coracoid osteotomy can reduce the occurrence of deviation of the direction during osteotomy, and improve the operation efficiency and success rate.

The features of the embodiments and embodiments described above may be combined with each other without conflict.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. A guiding tool for retaining coracoid ligament type oblique coracoid osteotomy, characterized in that: comprises a top plate, a side plate, a handle and a positioning pin;

the side plate is connected to the right side of the top plate and extends downwards, a through hole is formed in the front portion of the top plate, the positioning needle is detachably mounted in the through hole and extends to the position below the top plate, and the handle is connected to the top plate and extends upwards;

the roof is provided with many guide ways that turn right the rear from its left place ahead and extend, the guide way all runs through the thickness direction of roof board, each the guide way with contained angle between the curb plate is all inequality.

2. The guiding tool for preserving coracoid ligament beveled coracoid osteotomy as in claim 1, wherein: the guide grooves all point to the same point, and the point is positioned in front of the top plate at the left side.

3. A guide tool for preserving the coracoid ligament oblique coracoid osteotomy as in claim 1 or 2, wherein: the included angle between the guide grooves and the side plate is 45-65 degrees.

4. The guide tool for preserving the coracoid ligament beveled coracoid osteotomy of claim 3, wherein: the top plate is provided with five guide grooves, and included angles between the five guide grooves and the side plate are respectively 45 degrees, 50 degrees, 55 degrees, 60 degrees and 65 degrees.

5. The guiding tool for preserving coracoid ligament beveled coracoid osteotomy as in claim 1, wherein: the total width of the top plate in the left-right direction is 8-10mm, and the total length in the front-back direction is 16-20 mm.

6. The guide tool for preserving a coracoid ligament oblique coracoid osteotomy as in claim 1, wherein: the depth of the downward extension of the positioning needle is 3-6 mm.

7. The guiding tool for preserving coracoid ligament beveled coracoid osteotomy as in claim 1, wherein: the depth of the downward extension of the side plate is 8-9 mm.

8. The guide tool for preserving a coracoid ligament oblique coracoid osteotomy as in claim 1, wherein: the width of the guide groove is 0.8-1.2 mm.

9. The guiding tool for preserving coracoid ligament beveled coracoid osteotomy as in claim 1, wherein: the aperture of the through hole is 0.8-1.2 mm.

10. The guiding tool for preserving coracoid ligament beveled coracoid osteotomy as in claim 1, wherein: two groups of the through holes and the positioning pins are arranged in a matched manner, and the connecting line of the two positioning pins is perpendicular to the side plate.

Images