KR20230105363A - A Targeter Assemble Aiming An Anterior Medial Distal Tibia Plate - Google Patents

Abstract

The present invention can be applied to an L-shaped plate having a branch forward from the distal part of a conventional plate for bone joining, in which a stable weight arrangement is achieved even when an aiming device is mounted on the plate for bone joining. The present invention relates to an aiming device for using a bone joining plate capable of stably fixing a drill sleeve for guiding a drill bit for screw fixation into a hole of the bone joining plate.
The present invention relates to a support leg mounted in holes disposed on one distal portion of a plate for bone joining, and a drilling path for inserting a screw into a hole of the plate for bone joining by being inserted on the support leg and coupled with a bolt. In the aiming device including a first base including a through hole to which a drill sleeve is mounted, the lower end of the support leg is mounted on one side of the bone joining plate, and the middle end extends to the outside of the bone joining plate. It is bent upward, the upper end is formed with a fastening hole into which the bolt is inserted, and the middle of the support leg that is bent upward and extended is, one end of the first base is mounted on the upper end of the support leg, so that the first base is It is made of a relatively heavy weight compared to one 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 side even when disposed along the other side of the bone joining plate.

Description

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

The present invention relates to an aiming device for using a plate for bone joining, and more specifically, even when the aiming device is mounted on the plate for bone joining, a stable weight arrangement is achieved by itself, and at the distal part of the conventional bone joining plate. The present invention relates to an aiming device that can be applied to an L-shaped plate having a branch forward and stably fixes a drill sleeve for guiding a drill bit for screw fixation into a hole of a plate for bone joining.

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

A distal tibia medial plate is a device used to bind broken bones. It consists of one plate and is usually placed vertically along the periphery of a long bone, and a bone screw is inserted horizontally into the long bone. It has a number of holes or openings that can be.

However, since the conventional plate for bone joining gives strong support to fractures of the inner tibia but shows weak fixation to the outer crushed bone fragments, it is inconvenient to additionally fix the anterior and lateral metal plates in addition to the inner metal plate. This has disadvantages such as causing wound complications because additional soft tissue damage is required due to anterolateral incision.

In addition, since this plate for bone joining cuts 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 screw into the bone through the intended hole. .

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

Republic of Korea Patent Publication 10-2008-0087125 (published on September 30, 2008)

The present invention has been devised in view of the above problems, and an object of the present invention is to provide an aiming device capable of stably distributing its own weight even when the aiming device is mounted on a plate for bone bonding.

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

Another object of the present invention is to provide an aiming device capable of stably fixing a drill sleeve for guiding a drill bit for screw fixation into a hole of a bone joining plate.

According to a feature for achieving the above object, an aiming device for using a plate for bone joining includes a support leg mounted in holes disposed on one distal portion of the plate for bone joining, and a bolt inserted on the support leg. In the aiming device including a first base including a through hole coupled by a through hole to which a drill sleeve for forming a drilling path for screw insertion into the hole of the bone joining plate is mounted, the lower end of the support leg is Mounted on one side of the joining plate, the middle end extending outwardly of the bone joining plate and bent upward, the upper end having a fastening hole into which the bolt is inserted, and the middle end of the support leg bent upward and extending, One end of the first base is mounted on the upper end of the support leg so that the center of gravity of the bone joining plate and the aiming device is biased to one side or the other side even when the first base is disposed along the other side of the bone joining plate. It is made of a relatively heavy weight compared to one end of the support leg to prevent.

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

In addition, one end of the first base is formed with a relatively thick thickness to weight the weight onto the support leg.

In addition, mounting holes may be formed at one end and the other end of the first base to mount a moving handle capable of gripping so as to move the mutually coupled bone bonding plate and the aiming device.

In addition, a second magnetic body for generating magnetic force with the first magnetic body mounted on the drill sleeve to fix the drill sleeve may be mounted at a lower end of a side surface of each through hole in the first base.

In addition, the plate for bone joining further includes a branch plate extending forward from one distal portion and having a plurality of holes formed therein, inserted onto the support leg, coupled by a bolt, bent at a right angle, and extending 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 plate for bone joining further includes a branch plate extending forward from one distal portion and having a plurality of holes, coupled to a side surface of the first base and disposed at right angles to the first base to form a top surface of the branch plate. A second base may further include a through hole extending into the hole of the branch plate and having a through hole in which a drill sleeve forming a drilling path is mounted.

According to the aiming device for using the plate for bone joining according to the present invention, even if the aiming device is mounted on the plate for bone joining, stable weight arrangement is achieved by itself, so that the bone or skin of the patient for mounting the plate for bone joining is stimulated. It has the advantage that it is possible to maintain a stable posture without giving

In addition, according to the present invention, since it can be applied to an L-shaped plate having branches forward from the distal part of a conventional plate for bone joining, it is possible to effectively fix the plate not only to the inner side of the distal tibia but also to the lateral bone fragment, thereby preventing lateral comminuted fractures. It has the advantage of being able to respond effectively.

In addition, according to the present invention, it is possible to stably fix the drill sleeve for guiding the drill bit for screw fixation to the hole of the plate for bone joining without additional operation, thereby making the screw fixing work more convenient.

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

Features and advantages of the present invention will be more clearly understood by the embodiments described by the accompanying drawings.

The application of the present invention is not limited by the configuration and arrangement of components described in the embodiments or shown in the drawings. The invention is capable of implementation in other embodiments and of being carried out in various ways. In addition, expressions and predicates used in the embodiments with respect to terms such as the orientation of devices or elements are merely used to simplify the description of the present invention, and do not indicate or imply that related devices or elements should simply have a specific orientation. don't For example, although terms such as "first" and "second" are used in the embodiments describing the present invention and in the claims, these terms are not intended to indicate or imply relative significance or meaning.

In addition, the terms or words used in this specification and claims should not be construed as being limited to a conventional or dictionary meaning, and the inventors should not use the technical spirit of the present invention to explain the terms and concepts of the invention in the best way. It should be interpreted as written based on the corresponding meaning and concept.

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

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

1 is a perspective view showing the configuration of an aiming device according to the present invention, FIG. 2 is an exploded perspective view showing the configuration of an aiming device according to the present invention, and FIG. It is a perspective view showing a state, and FIG. 4 is a perspective view showing a state in which the drill sleeve and the 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 portion of a bone joining plate 10, a bolt B1 inserted on the support leg 20, For example, it includes a through hole 41 coupled by a knob bolt B1 and mounting a drill sleeve 30 forming a drilling path for screw insertion into the hole 11 of the plate 10 for bone bonding. It includes a first base 40 to.

The support leg 20 is made of a bent shape in the middle, the lower end is mounted on one side of the bone joining 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 portion is bent upward while extending to the outside of the plate 10 for bone bonding. That is, the lower part of the support leg 20 is formed to be inclined downward based on the bent middle, and the upper part thereof is formed to extend in the vertical direction.

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

In addition, the upper end of the support leg 20 is supported by an expansion protrusion 22 extending in one direction around the fastening hole 21 and one end of the first base 40 inserted into the expansion protrusion 22. A flat surface 23 formed flat around the expansion protrusion 22 is provided.

Meanwhile, the first base 40 is coupled to the upper end of the support leg 20 by a bolt B1. To this end, 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) communicating with the insertion hole 42 and extending in one direction. . Therefore, coupling the first base 40 to the upper end 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 1 When the bottom surface of one end 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 made by doing

One end of the first base 40 is made of a relatively thick thickness to weight the weight onto the support leg 20 . Therefore, when one end of the first base 40 is mounted on the support leg 20 and placed along the plate 10 for bone joining, even if the first base 40 does not separately support a portion other than one end, it is stable. weighting is done. This function works together with the weight arrangement of the support leg 20. When the support leg 20 is coupled to the bone joining plate 10, the support leg 20 and the first base 40 can be manipulated with little force with respect to the bone joining plate 10, so that the operator's Fatigue is reduced and screw fixing work becomes easy.

In this way, when the support leg 20 is coupled to the bone joining plate 10 in a state in which the support leg 20 and the first base 40 are coupled, the coupling hole 24 at the bottom of the support leg 20 is It is preferable to form a recessed line 43 on the side of the first base 40 so that it can be exposed without being interfered with by the first base 40 .

In addition, at one end and the other end of the first base 40, a mounting hole 44 into which a moving handle 50 capable of gripping to move the mutually coupled bone joining plate 10 and the aiming device can be mounted. Each of these can be formed.

In addition, a configuration in which a sleeve lock bolt 45 can be inserted may be provided to a side surface where the through hole 41 is formed in the first base 40 . This is to pass through the through hole 41 and fix the drill sleeve 30 mounted to the hole 11 of the plate 10 for bone bonding. When the sleeve lock bolt 45 is tightened, the drill sleeve 30 By pressing the side, the movement of the drill sleeve 30 is limited.

However, since the sleeve lock bolts 45 are formed for each through hole, when the drill sleeve is mounted on the plurality of through holes 41, the sleeve lock bolts 45 for each through hole 41 must be tightened, which is somewhat inconvenient. For this reason, there are also cases in which 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, at the lower end of the side surface of each through hole 41 in the first base 40, the first magnetic body 31 mounted on the drill sleeve 30 and A configuration in which a second magnetic body 46 for fixing the drill sleeve 30 by generating magnetic force is installed is adopted.

The fixing mechanism of the drill sleeve 30 by two magnetic materials will be described as follows.

When the drill sleeve 30 passes through the through hole 41 and is inserted into the hole of the plate 10 for bone bonding, it is screwed into the hole through the thread of 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 joining plate 10, it enters while being rotated for screw coupling. Therefore, since the tip of the drill sleeve 30 is screwed into the hole 11, coupling by magnetic force is used in the through hole 41 to limit the left and right flow of the drill sleeve 30.

In addition, a relatively large force is required to pull the drill sleeve 30 backward to release the coupling by magnetic force, but it can be disassembled with relatively little force when rotated to release the screw coupling of the tip. Therefore, when screwing, the drill sleeve 30 is more easily rotated by magnetic force, and has the advantage that it is possible with a relatively small force by rotation even when dismantled. Moreover, it is necessary to mount all aiming devices that the drill sleeve 30 passes through the through hole 41 and is coupled to the hole 11 of the plate for bone bonding. 41), the operator's convenience and the accuracy of the procedure can be increased.

Meanwhile, the plate 10 for bone bonding 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 therein. A second base 60 is further provided to guide the screw coupling to the branch plate 12 .

The second base 60 is fitted onto the support leg 20, coupled by 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 to 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 a 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 corresponds to the insertion hole and the expansion hole of the first base 40. 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 to the bone joining plate 10, and the hole of the branch plate 12 The screw can be inserted by mounting the drill sleeve 30 on.

In addition, the second base 60 is coupled to the side surface of the first base 40 and is disposed at right angles to the first base 40 to extend onto the branch plate 12 and extend onto the branch plate 12. It may be made of a configuration having a through hole 41 to which the drill sleeve 30 is mounted to form a drilling path in the hole of. The structure in which the second base 60 is coupled to the side surface of the first base 40 may be formed in various configurations. For example, a configuration in which a bolt inserted through the second base 60 is coupled to the side surface of the first base 40 is also possible.

The second base 60 can be mounted on the second base 60 without disassembling the first base 40 mounted on the support leg 20, so it is more convenient to screw the branch plate 12. can be inserted.

As described above, the rights of the present invention are defined by what is described in the claims, not limited to the embodiments described above, and various modifications and adaptations within the scope of rights described in the claims by those skilled in the art in the field of the present invention It is self-evident that you can do

10: bone joint plate 11: hole
12: branch plate 13: hole
20: support leg 21: fastening hole
22: expansion protrusion 23: flat surface
24: coupling hole
30: drill sleeve 31: first magnetic body
40: first base 41: through hole
42: insertion hole 43: recessed line
44: mounting hole 45: sleeve lock bolt
46: second magnetic body
50: moving handle
60: second base
B1: Bolt B2: Bolt

Claims (7)

The support leg 20 mounted in the holes disposed on one distal portion of the plate 10 for bone joining, and the plate 10 for bone joining 20 is inserted into the support leg 20 and coupled by a bolt B1. In the sighting device including a first base 40 including a through hole 41 to which a drill sleeve 30 is mounted that forms a drilling path for screw insertion into the hole,
The lower end of the support leg 20 is mounted on one side of the plate 10 for bone joining, the middle part is bent upward while extending to the outside of the plate 10 for bone joining, and the upper end is bent upward through the bolt B1. A fastening hole 21 into which is inserted is formed,
In the middle of the support leg 20 extending by being bent upward, one end of the first base 40 is mounted on the upper end of the support leg 20 so that the first base 40 is the bone joining plate ( 10), it is made of a relatively heavy weight compared to one end of the support leg 20 to prevent the center of gravity of the bone joining plate 10 and the aiming device from being biased to one side or the other side even when disposed along the other direction of An aiming device for using a plate for bone bonding.
According to claim 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 communicating with the insertion hole 42 and extending in one direction,
An upper end of the support leg 20 includes 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 protrusion 22. An aiming device for using a plate for bone bonding, characterized in that composed of a flat surface 23 formed flat around the expansion protrusion 22 so that one end of the is supported.
According to claim 1,
An aiming device for using a plate for bone bonding, characterized in that one end of the first base (40) is formed with a relatively thick thickness so as to weight the weight onto the support leg (20).
According to claim 1,
At one end and the other end of the first base 40, a mounting hole 44 into which a moving handle 50 capable of gripping so as to move the mutually coupled bone bonding plate 10 and the aiming device can be mounted. An aiming device for using a plate for bone bonding, characterized in that each is formed.
According to claim 1,
At the lower end of the side surface of each through hole 41 in the first base 40, magnetic force is generated with the first magnetic body 31 mounted on the drill sleeve 30 so that the drill sleeve 30 is fixed An aiming device for using a plate for bone bonding, characterized in that the second magnetic body 46 is mounted.
According to claim 1,
The bone joining plate 10 further includes a branch plate 12 extending forward from one distal portion and having a plurality of holes formed therein,
A drill sleeve 30 fitted on the support leg 20, coupled by a bolt B1, bent at a right angle, extended onto the branch plate 12, and forming a drilling path in the hole of the branch plate 12 An aiming device for using a plate for bone bonding, characterized in that the second base 60 having a through hole 41 to which is mounted is further included.
According to claim 1,
The bone joining plate 10 further includes a branch plate 12 extending forward from one distal portion and having a plurality of holes formed therein,
A drill coupled to the side surface of the first base 40 and disposed at right angles to the first base 40 to extend onto the branch plate 12 and form a drilling path in the hole of the branch plate 12 An aiming device for using a plate for bone bonding, characterized in that it further includes a second base (60) having a through hole (41) to which the sleeve (30) is mounted.

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