KR102660975B1 - A Targeter Assemble Aiming An Anterior Medial Distal Tibia Plate - Google Patents

Abstract

The present invention achieves stable weight placement even if the aiming device is mounted on the bone bonding plate, and can be applied to an L-shaped plate with a branch forward from the distal part of a conventional bone bonding plate. , relates to an aiming device for using a bone bonding plate that can stably fix a drill sleeve that guides drill biting for fixing screws in the hole of the bone bonding plate.
The present invention includes a support leg mounted in holes disposed on one distal portion of a bone bonding plate, a support leg fitted on the support leg, coupled by a bolt, and forming a drilling path for inserting a screw into the hole of the bone bonding plate. In the aiming device including a first base including a through hole on which a drill sleeve is mounted, the lower end of the support leg is mounted on one side of the bone bonding plate, and the middle portion extends to the outside of the bone bonding plate It is bent upward, and a fastening hole into which the bolt is inserted is formed at the upper end, and the middle part of the support leg bent upward and extending is such that one end of the first base is mounted on the upper end of the support leg, so that the first base is the Even if it is disposed along the other side of the bone bonding plate, it is made relatively heavy compared to one end of the support leg to prevent the center of gravity of the bone bonding plate and the aiming device from being biased to one side or the other.

Description

Aiming device for using a bone bonding plate {A Targeter Assemble Aiming An Anterior Medial Distal Tibia Plate}

The present invention relates to an aiming device for using a bone bonding plate. More specifically, even when the aiming device is mounted on a bone bonding plate, stable weight placement is achieved by itself, and the distal portion of a conventional bone bonding plate is It can be applied to an L-shaped plate with a branch in the front, and relates to an aiming device that can stably fix a drill sleeve that guides drill biting for fixing screws to holes in a plate for bone joining.

The skeletal system, for example in relation to the human body, includes numerous long, flat bones extending from the human torso. These bones include the pelvis, vertebrae, humerus, radius, ulna, bones of the hand, femur, tibia, fibula, and feet. These bones are particularly exposed to trauma from accidents that can cause complex fractures of the bone.

A distal tibia medial plate is a device used to tie broken bones. It consists of a single plate and is usually placed vertically along the periphery of a long bone. A screw for osteosynthesis is inserted horizontally into the long bone. It is provided with a plurality of holes or openings.

However, the conventional bone bonding plate provides strong support for fractures of the medial tibia but shows weak fixation for the outer crushed bone fragments, so there was the inconvenience of having to fix an anterolateral metal plate in addition to the inner metal plate. This had the disadvantage of causing wound complications because it required additional soft tissue damage due to the anterolateral incision.

In addition, since this bone bonding plate is cut on one side of the fracture site and enters the inside of the skin tissue to be placed along the periphery of the long bone, an aiming device is required to accurately insert the bone bonding screw into the bone through the intended hole. .

In particular, because the angle at which the screw is inserted into the bone is important, an aiming device is used to more accurately target drilling of each hole. Such an aiming device can serve as a drilling template to align the drill sleeve along the desired drilling path. The aiming device includes, for example, a through hole into which a drill sleeve can be inserted, and then the drilling instrument is guided through the drill sleeve for targeted drilling of the screw hole. The drill sleeve is aligned with the hole in the bone bonding plate through the orientation of the through hole in the aiming device.

Republic of Korea Public Patent No. 10-2008-0087125 (published on September 30, 2008)

The present invention was developed in consideration of the above problems, and the purpose of the present invention is to provide an aiming device that achieves stable weight placement on its own even when the aiming device is mounted on a bone bonding plate.

Another object of the present invention is to provide an aiming device that can be applied to an L-shaped plate with a branch forward from the distal part of a conventional bone bonding plate.

Another object of the present invention is to provide an aiming device that can stably fix a drill sleeve that guides drill biting for screw fixation into a hole in a bone bonding plate.

According to the features for achieving the above-mentioned purpose, the aiming device for using the bone bonding plate includes a support leg mounted in holes disposed on one distal side of the bone bonding plate, and a bolt fitted on the support leg. In the aiming device comprising a first base coupled by and including a through hole on which a drill sleeve forming a drilling path for inserting a screw into the hole of the bone bonding plate is mounted, the lower end of the support leg is connected to the bone It is mounted on one side of the bonding plate, and the middle portion extends to the outside of the bone bonding plate and is bent upward, and the upper end is formed with a fastening hole into which the bolt is inserted, and the middle portion of the support leg bent and extending upward is, One end of the first base is mounted on the upper end of the support leg to prevent the center of gravity of the bone joining plate and the aiming device from being biased to one side or the other even if the first base is disposed along the other side of the bone joining plate. To prevent this, the weight is relatively heavy compared to one end of the support leg.

And one end of the first base is provided with an insertion hole through which the bolt is inserted and an expansion hole that communicates with the insertion hole and extends in one direction, and the upper end of the support leg is formed around the fastening hole. It consists of an expansion protrusion inserted into the expansion hole, and a flat surface formed around the expansion projection so that one end of the first base inserted into the expansion projection is supported.

Additionally, one end of the first base is formed to be relatively thick to add weight to the support leg.

In addition, mounting holes can be formed at one end and the other end of the first base, where a moving handle that can be gripped to move the bone bonding plate and the aiming device coupled to each other can be mounted.

In addition, a second magnetic material that generates magnetic force with the first magnetic material mounted on the drill sleeve to fix the drill sleeve may be installed at the lower side of each through hole in the first base.

In addition, the bone bonding plate further includes a branch plate that extends forward from one distal portion and has a plurality of holes formed thereon, is fitted on the support leg, is coupled by a bolt, is bent at a right angle, and extends onto the branch plate. A second base having a through hole in which a drill sleeve forming a drilling path is mounted in the hole of the branch plate may be further included.

Alternatively, the bone bonding plate further includes a branch plate extending forward from one distal portion and having a plurality of holes formed thereon, coupled to the side of the first base and disposed at a right angle to the first base on the branch plate. A second base extending to and having a through hole in which a drill sleeve forming a drilling path is mounted in the hole of the branch plate may be further included.

According to the aiming device for using the bone bonding plate according to the present invention, even if the aiming device is mounted on the bone bonding plate, stable weight placement is achieved, thereby irritating the patient's bones or skin for mounting the bone bonding plate. It has the advantage of being able to maintain a stable posture without causing stress.

In addition, according to the present invention, since it can be applied to an L-shaped plate with a branch forward from the distal part of the conventional bone bonding plate, it is possible to effectively fix the plate not only on the inner side of the distal tibia but also on the outer bone fragment, even for lateral comminuted fractures. There is an advantage in being able to respond effectively.

In addition, according to the present invention, the drill sleeve that guides the drill biting for fixing screws in the hole of the bone bonding plate can be stably fixed without additional operation, which has the effect of making screw fixing work more convenient.

1 is a perspective view showing the configuration of an aiming device according to the present invention;
Figure 2 is an exploded perspective view showing the configuration of the aiming device according to the present invention;
Figure 3 is a perspective view showing a state in which a bone bonding plate and an aiming device are placed on the tibia;
Figure 4 is a perspective view showing a state in which the drill sleeve and moving handle are mounted on the aiming device of Figure 3;
Figure 5 is a cross-sectional view showing the structure of fixing the drill sleeve to the first base by a magnetic material;
Figure 6 is a perspective view showing the configuration of the second base and support legs for aiming the drill sleeve at the branch canal of the bone bonding plate;
Figure 7 is an exploded perspective view showing the configuration of the second base and support legs shown in Figure 6;
FIG. 8 is a diagram illustrating a state in which the second base and the support leg shown in FIG. 6 are coupled to the bone bonding plate and placed on the tibia.

The features and advantages of the present invention can be understood more clearly by looking at the embodiments illustrated in the accompanying drawings.

The application of the present invention is not limited by the configuration and arrangement of components described in the embodiments of the present invention or shown in the drawings. The present invention may be implemented in different embodiments and performed in various ways. Additionally, expressions and predicates used in the embodiments regarding terms such as orientation of a device or element, etc. are merely used to simplify the description of the invention and do not indicate or imply that the device or element involved should simply have a particular orientation. No. For example, terms such as “first” and “second” are used in the examples and claims to describe the present invention, but these terms are not intended to indicate or imply relative importance or intent.

In addition, terms or words used in the specification and claims should not be construed as limited to their usual or dictionary meanings, and the inventor should use the technical idea of the present invention to explain the terms and concepts of the invention in the best way. It must be interpreted as written based on the corresponding meaning and concept.

Therefore, the present invention is not limited to the presented embodiments, and is understood by those skilled in the art to which the present invention pertains, within the technical spirit of the present invention and the technical equivalents described in the claims below. Various modifications and changes are possible.

In the following, the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a perspective view showing the configuration of the aiming device according to the present invention, Figure 2 is an exploded perspective view showing the configuration of the aiming device according to the present invention, and Figure 3 is an arrangement of the bone bonding plate and the aiming device with respect to the tibia. It is a perspective view showing one state, and FIG. 4 is a perspective view showing a state in which the drill sleeve and moving handle are mounted on the aiming device of FIG. 3.

As shown, the aiming device according to the present invention includes a support leg 20 mounted in holes disposed on one distal side of the bone bonding plate 10, a bolt B1 fitted on the support leg 20, and For example, it is coupled by a knob bolt (B1) and includes a through hole 41 into which a drill sleeve 30 forming a drilling path for inserting a screw into the hole 11 of the bone bonding plate 10 is mounted. It includes a first base 40.

The support leg 20 is made in a bent form at the middle, and the lower end is mounted on one side of the bone bonding plate 10, and the other side is formed with a fastening hole 21 into which the bolt B1 can be inserted. The first base 40 is mounted on the support leg 20 by the bolt B1, and the middle part extends to the outside of the bone bonding plate 10 and is bent upward. That is, the lower part of the support leg 20 is formed to be inclined downward based on the bent middle part, and the upper part is formed to extend in the vertical direction.

At this time, from the bent middle part of the support leg 20, the upper end becomes thicker than the lower end. This means that one end of the first base 40 is mounted on the upper end of the support leg 20, so that even if the first base 40 is disposed along the other side of the bone bonding plate 10, the bone bonding plate ( 10) This is to prevent the center of gravity of the aiming device from being biased to one side or the other.

And the upper end of the support leg 20 is supported by an extension protrusion 22 extending in one direction around the fastening hole 21 and one end of the first base 40 inserted into the extension protrusion 22. A flat surface 23 is formed as flatly around the expansion protrusion 22 as possible.

Meanwhile, the first base 40 is coupled to the upper end of the support leg 20 by a bolt B1. For this purpose, one end of the first base 40 is provided with an insertion hole 42 through which the bolt B1 is inserted and an expansion hole (not shown) that communicates with the insertion hole 42 and extends in one direction. . Therefore, coupling the first base 40 to the top of the support leg 20 causes the expansion protrusion 22 of the support leg 20 to be inserted into the expansion hole of the first base 40, thereby 1When one bottom of the base 40 is placed on the flat surface 23 of the support leg 20, the bolt B1 is inserted through the insertion hole 42 and fastened to the fastening hole 21. It is accomplished by doing.

One end of the first base 40 is relatively thick to add weight to the support leg 20. Therefore, when one end of the first base 40 is mounted on the support leg 20 and placed along the bone bonding plate 10, the first base 40 is stable even if the portion other than one end is not separately supported. Weight placement is done. This functions in conjunction with the weight arrangement of the support leg 20. In particular, the support leg 20 and the first base 40 are connected with the bolt B1 while the bone bonding plate 10 is in close contact with the tibia. When the support leg 20 is coupled to the bone bonding plate 10, the support leg 20 and the first base 40 can be manipulated with little force relative to the bone bonding plate 10, allowing the operator to Fatigue is reduced and screw fixation becomes easier.

In this way, when the support leg 20 is coupled to the bone bonding plate 10 in a state in which the support leg 20 and the first base 40 are combined, the coupling hole 24 at the bottom of the support leg 20 is formed. It is desirable to form a recessed line 43 on the side of the first base 40 so that it can be exposed without interference from the first base 40.

In addition, at one end and the other end of the first base 40, there is a mounting hole 44 on which a moving handle 50 that can be gripped to move the bone bonding plate 10 and the aiming device coupled to each other can be mounted. Each of these can be formed.

In addition, a configuration can be provided in which the sleeve lock bolt 45 can be inserted into the side of the first base 40 where the through hole 41 is formed. This is for fixing the drill sleeve 30 that passes through the through hole 41 and is mounted in the hole 11 of the bone bonding plate 10. When the sleeve lock bolt 45 is tightened, the drill sleeve 30 The movement of the drill sleeve 30 is restricted by pressing the side.

However, the sleeve lock bolts 45 are formed for each through hole, so when the drill sleeve is mounted on a plurality of through holes 41, the sleeve lock bolt 45 for each through hole 41 must be tightened separately, causing some inconvenience. Because of this, there are cases where the operator performs the procedure without tightening the sleeve lock bolt (45).

Therefore, in another embodiment of the present invention, in order to improve this problem, a first magnetic body 31 mounted on the drill sleeve 30 is installed at the bottom of the side of each through hole 41 in the first base 40. A configuration was adopted in which a second magnetic body 46, which generates magnetic force and fixes the drill sleeve 30, is installed.

The fixing mechanism of the drill sleeve 30 by the two magnetic materials is explained as follows.

When the drill sleeve 30 passes through the through hole 41 and is inserted into the hole of the bone bonding plate 10, it is screwed into the hole through the thread at the tip. That is, when the drill sleeve 30 takes its final position in the hole 11 and the through hole 41 of the bone bonding plate 10, it enters while rotating for screw engagement. Therefore, since the tip of the drill sleeve 30 is screwed to the hole 11, magnetic coupling is used in the through hole 41 to limit the left and right movement of the drill sleeve 30.

In addition, a relatively large force is required to pull the drill sleeve 30 backward to release the magnetic coupling, but when it is rotated to release the screw coupling at the tip, disassembly is possible with relatively little force. Therefore, when screwed together, the drill sleeve 30 can be rotated more easily by magnetic force, and when dismantled, it has the advantage of being possible with a relatively small force due to rotation. Moreover, it is necessary for the installation of all aiming devices that the drill sleeve (30) passes through the through hole (41) and couples to the hole (11) of the bone bonding plate, and the drill sleeve (30) passes through the through hole ( 41), the convenience of the operator and the accuracy of the procedure can be increased by being stably supported.

Meanwhile, the bone bonding plate 10 according to the present invention may further include a branch plate 12 extending forward from one distal portion and having a plurality of holes 13 formed thereon. A second base 60 is further provided to guide the attachment of the screw to the branch plate 12.

The second base 60 is fitted on the support leg 20, coupled with a bolt B1, bent at a right angle, extended onto the branch plate 12, and formed through the hole 13 of the branch plate 12. It may be provided with a through hole 41 into which the drill sleeve 30 forming a drilling path is mounted. At this time, as shown in FIG. 6, the second base 60 may be composed of a first part 61 and a second part 62 by separating the portion bent at a right angle, and the first part 61 And the second part 62 may be configured to be coupled by a separate bolt (B2).

At this time, the first part 61 has a structure corresponding to the expansion protrusion and the flat surface of the support leg 20, and the second part 62 has a structure corresponding to the insertion hole and the expansion hole in the first base 40. A configuration can be provided.

With this configuration, the second base 60 is coupled using the currently mounted support leg 20 without mounting a separate support leg 20 on the bone bonding plate 10, and the hole of the branch plate 12 is connected. Screws can be inserted by installing the drill sleeve (30).

In addition, the second base 60 is coupled to the side of the first base 40, is disposed at a right angle to the first base 40, and extends onto the branch plate 12. It may be configured to include a through hole 41 into which a drill sleeve 30 forming a drilling path is mounted. The structure in which the second base 60 is coupled to the side of the first base 40 may have various configurations. For example, it is possible to have a bolt inserted through the second base 60 coupled to the side of the first base 40.

This second base 60 can be mounted without dismantling the first base 40 mounted on the support leg 20, so it is more convenient to install screws on the branch plate 12. It can be inserted.

As above, the rights of the present invention are not limited to the embodiments described above but are defined by the claims, and various modifications and modifications can be made by those skilled in the art within the scope of the rights set forth in the claims. It is self-evident that you can do this.

10: Plate for bone joining 11: Hole
12: branch board 13: hole
20: Support leg 21: Fastening hole
22: expansion protrusion 23: flat surface
24: coupling hole
30: Drill sleeve 31: First magnetic material
40: first base 41: through hole
42: Insertion hole 43: Recessed line
44: Mounting hole 45: Sleeve lock bolt
46: Second magnetic material
50: moving handle
60: 2nd base
B1: Bolt B2: Bolt

Claims (7)

A support leg (20) mounted in holes disposed on one distal portion of the bone bonding plate (10), fitted on the support leg (20) and coupled by a bolt (B1), and the bone bonding plate (10) In the aiming device comprising a first base (40) including a through hole (41) on which a drill sleeve (30) forming a drilling path for inserting a screw into the hole is mounted,
The support leg 20 has a lower end mounted on one side of the bone bonding plate 10, extends upward and outward in the longitudinal direction of the bone bonding plate 10, and the bolt B1 is inserted into the upper end. A fastening hole 21 is formed,
The first base 40 has one end mounted on the upper end of the support leg 20 and disposed along the other side of the bone bonding plate 10,
At one end and the other end of the first base 40, there is a mounting hole 44 on which a moving handle 50 that can be gripped to move the bone bonding plate 10 and the aiming device coupled to each other can be mounted. Aiming device for using bone bonding plates, each of which is formed.
According to paragraph 1,
One end of the first base 40 is provided with an insertion hole 42 through which the bolt B1 is inserted and an expansion hole that communicates with the insertion hole 42 and extends in one direction,
The upper end of the support leg 20 has an expansion protrusion 22 formed around the fastening hole 21 and inserted into the expansion hole, and the first base 40 inserted into the expansion projection 22. Aiming device for using a bone bonding plate, characterized in that it consists of a flat surface (23) formed flat around the expansion protrusion (22) so that one end of the is supported.
delete delete According to paragraph 1,
At the bottom of the side of each through hole 41 in the first base 40, a magnetic force is generated with the first magnetic body 31 mounted on the drill sleeve 30 to fix the drill sleeve 30. Aiming device for using a bone bonding plate, characterized in that the second magnetic material (46) is mounted.
According to paragraph 1,
On the branch plate 12, which is fitted on the support leg 20, coupled by a bolt B1 and bent at a right angle, extends forward from one distal part of the bone bonding plate 10, and has a plurality of holes formed thereon. It extends to the bone joint, characterized in that it further includes a second base 60 having a through hole 41 on which a drill sleeve 30 forming a drilling path is mounted in the hole of the branch plate 12. Aiming device for using the dragon plate.
According to paragraph 1,
A branch plate coupled to the side of the first base 40 and disposed at a right angle to the first base 40, extends forward from one distal portion of the bone bonding plate 10, and has a plurality of holes formed therein. (12) extends upward and further includes a second base 60 having a through hole 41 on which a drill sleeve 30 forming a drilling path is mounted in the hole of the branch plate 12. Aiming device for using a bone bonding plate.