KR102422928B1 - Osteosynthesis plate - Google Patents

Abstract

A bone junction plate is disclosed. The bone junction plate is fixed to the first and second troughs, the body portion configured to hold the first and second troughs; and a plurality of through-holes inserted into the first and second valleys so that screws for fixing the body to the first and second valleys pass through, at least one of the plurality of through-holes. is formed to be inclined in the extending direction of both ends of the body part and includes an inclined through-hole such that at least a portion of the screw is inserted and fixed to the first and second valleys in the extending direction of both ends of the body, the body It may include a fixing part configured to fix the part to the first valley part and the second valley part. According to the present invention, it is possible to reduce the length of the bone bonding plate by increasing the fixing force for fixing the bone bonding plate to the bone. As a result, the incision area for inserting the bone joining plate is reduced, and the bone joining plate can be inserted and fixed more conveniently, improving the efficiency and convenience of surgery. Furthermore, since the screw is fixed at an angle, it is not easily separated from the bone, thereby improving stability.

Description

Osteosynthesis plate}

The present invention relates to a plate for bone joining, and more particularly, to a plate for bone joining in which fixing force is strengthened by obliquely fixing screws for fixing the plate for bone joining.

In the case of long bones such as the long bones of the extremities, they may grow out of alignment due to congenital deformation, trauma, or other causes. Due to this misalignment, deformation of limbs and kinematic deformities may occur. An osteotomy, or surgery to cut the bone, is used to realign the bone. Osteotomy realigns the bone by cutting it transverse to the longitudinal axis of the bone. Alternatively, in the case of a limb iliac bone whose continuity is lost due to a fracture due to trauma, etc., continuity is restored by using a bone junction plate.

Referring to FIG. 1 , an example of the bone junction plate 10 coupled to the human bone 1 and the bone 1 is shown. The osteotomy plate 10 is used to fix the realigned bone 1 by osteotomy. The bone junction plate 10 may be used to hold the bone 1 damaged due to a fracture or the like. Therefore, the bone junction plate 10 must be well fixed to the bone 1 to properly hold the cut bone 1 .

In the case of the conventional bone bonding plate 10, screws are used for fixing. At this time, the screws used for fixing are inserted perpendicularly to the bone (1) and the bone junction plate (10).

The longer the length of the bone junction plate 10, the larger the incision area should be in performing the operation to fix the bone junction plate 10, and there is an inconvenience of having to drive more nails. Furthermore, the patient may also feel discomfort due to the size and weight of the attached bone junction plate 10 . That is, in the case of the conventional bone junction plate 10, there is a problem that causes inconvenience to patients and doctors.

The present invention is to solve the above problems, the present invention is to reduce the length of the body by the screw inserted to fix the body to the bone at an angle of 45 degrees or more to the longitudinal direction, including the ulna with increased fixing force An object of the present invention is to provide a bone bonding plate for long bones.

According to an embodiment of the present invention for solving the above problems, in the bone bonding plate, the body portion is fixed to the first and second valleys, and configured to hold the first and second valleys; and a plurality of through-holes inserted into the first and second valleys so that screws for fixing the body to the first and second valleys pass through, at least one of the plurality of through-holes. is formed to be inclined in the extending direction of both ends of the body part and includes an inclined through-hole such that at least a portion of the screw is inserted and fixed to the first and second valleys in the extending direction of both ends of the body, the body It characterized in that it comprises a fixing part configured to fix the part to the first and second valleys. According to the present invention, it is possible to reduce the length of the bone bonding plate by increasing the fixing force for fixing the bone bonding plate to the bone. As a result, the incision area for inserting the bone joining plate is reduced, and the bone joining plate can be inserted and fixed more conveniently, improving the efficiency and convenience of surgery. Furthermore, since the screw is fixed at an angle, it is not easily separated from the bone, thereby improving stability.

The inclined through-hole may be configured to adjust the direction or inclination in which the screw is inserted.

The inclined through-hole may be further provided with a display means for indicating the direction or inclination in which the screw is inserted.

The body portion may include a first body fixed to the first trough and a second body fixed to the second trough, and the first body and the second body may be configured to be detachably coupled to each other. have.

A guide body formed in the central region of the body portion including a cutting guide for guiding the cutting of the end of the first valley and the end of the second valley may be detachably coupled.

According to the present invention, longer screws can be used by inserting the screws at an angle into the bone. Since the screw is inserted obliquely into the bone, and longer screws can be used, the fixing force for fixing the bone joint plate to the bone is increased, and the length of the bone joint plate can be reduced.

As a result, the incision area for inserting the bone joining plate is reduced, and the bone joining plate can be inserted and fixed more conveniently, improving the efficiency and convenience of surgery.

Furthermore, since the screw is fixed at an angle, it is not easily separated from the bone, thereby improving stability.

In addition, since the screw is fixed obliquely, the extension direction of the screw moves away from the fractured piece from which the bone is cut, and the fixing force according to the screw's fixation acts in the direction of pulling the fractured piece, so that the bone for the bone joint plate is cut more stably. can be fixed

In addition, the first reason for the improvement of the fixation force for fixing the bone junction plate to the bone is that because it is inserted at an angle of 45 degrees or more, a screw that is about 1.4 times longer than when inserted in the vertical direction can be used, so the screw thread in contact with the bone This is because the area increases.

In addition, the second reason that the fixing force for fixing the bone junction plate to the bone is improved is that the torque value is increased while the screw is fixed further from the fracture piece when using the same length screw.

In addition, the third reason for improving the fixation force of fixing the bone junction plate to the bone is that when the screw is inserted at an angle of 45 degrees or more, the more the screw is tightened, the stronger the contact between the plate and the bone is, and the fractured bone is fractured. This is because it is strongly tightened in the side (center) direction.

1 shows a human bone to which a bone junction plate is applied.
Figure 2 is a perspective view of a bone bonding plate according to an embodiment of the present invention.
Figure 3 shows an example in which the bone junction plate according to an embodiment of the present invention is applied to human bones.
Figure 4 is a plan view of the bone bonding plate into which screws are inserted according to an embodiment of the present invention.
5 is a perspective view of a cutting guide according to an embodiment of the present invention.
6 is an exploded view of a cutting guide separated and coupled according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments published below, but may be implemented in various different forms, and only these embodiments allow the publication of the present invention to be complete, and common knowledge in the technical field to which the present invention pertains. It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly defined in particular. The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase.

Also, as used herein, the terms encompass and/or comprising are intended to specify the presence of the recited shapes, numbers, steps, members, elements, and or groups thereof, and not It is not intended to exclude the presence or addition of other shapes, numbers, movements, members, elements and/or groups.

In addition, a structure or shape disposed adjacent to another shape may have a portion that overlaps or is disposed below the adjacent shape.

As used herein, relative terms such as below, above, above, below, horizontal or vertical, as shown in the drawings, It can be used to describe the relationship that one component, layer, or region has with another component, layer, or region. These terms encompass not only the orientation indicated in the drawings, but also other orientations of the device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention are described with reference to cross-sectional views schematically illustrating ideal embodiments (and intermediate structures) of the present invention. In these drawings, for example, the size and shape of the members may be exaggerated for convenience and clarity of description, and in actual implementation, variations of the illustrated shape may be expected. Accordingly, embodiments of the present invention are not limited to the specific shape of the region shown herein.

Figure 2 is a perspective view of a plate for bone joining according to an embodiment of the present invention, Figure 3 is a cross-sectional view of an example in which the plate for bone joining according to an embodiment of the present invention is applied to human bones, Figure 4 is an embodiment of the present invention According to the example, it is a plan view of the bone joint plate into which screws are inserted.

Each direction shown in FIG. 2 will be described. The X, Y, and Z directions basically represent the horizontal, vertical, and height directions, respectively. The bone bonding plate extends along the X direction. The bone junction plate and the bone (1) are stacked and fixed along the Z direction. Hereinafter, each drawing and embodiment including FIG. 2 will be described based on such direction definitions. Here, the directions opposite to the X, Y, and Z directions are represented by the -X, -Y, and -Z directions, respectively, and the X-Y plane means a plane formed by the axis of the X direction and the axis of the Y direction.

The bone junction plate according to an embodiment of the present invention includes a body portion 100 and a fixing portion 200 . The bone junction plate can be applied to the human bone (1). At this time, the bone 1 may be various parts such as the ulna and the iliac bones. The bone 1 may be divided into two parts, such as broken or cut. The part of the bone (1) that is cut and fixed to the bone junction plate is called the first bone and the remaining part is called the second bone.

The body part 100 is fixed to the bone 1 and is configured to hold the bone 1 . The body part 100 is extended by a predetermined length in the X direction.

The body part 100 may include a first body 110 and a second body 120 to be respectively coupled to the cut and rearranged first and second ulnar parts. The first body 110 and the second body 120 may be detachably coupled to each other. A guide body 130 provided with a cutting guide (see 1301 of FIG. 3 ) for fracture ends may be temporarily coupled between the first body 110 and the second body 120 . This will be described later. The body part 100 may be made of a titanium material.

The body part 100 is provided with a fixing part 200 for fixing the body part 100 to the bone (1). The fixing unit 200 may include a plurality of through holes. The through hole passes through the body portion 100 having a predetermined diameter. At one end of the through-hole, a holding means having a portion smaller than a predetermined diameter of the through-hole is provided so that the head of the screw 20 is fixed to the body 100 without passing through the through-hole. The direction in which the through-hole penetrates in the body portion 100 and the inclined angle guide the direction of the screw 20 fixed to the bone 1 . The screw 20 penetrates the body part 100 through the through hole and is inserted into the bone 1 to fix the body part 100 to the bone 1 . At this time, at least some of the plurality of through-holes may be configured such that the screw 20 is inserted into the bone 1 at an angle. That is, as a through-hole in which the direction penetrating the body 100 is formed obliquely, such a through-hole is also referred to as a non-orthogonal through-hole in the present specification. 'Slantly' means that the extension direction of the inserted screw 20 is not parallel to the Z direction perpendicular to the body 100 and the bone 1, but has a predetermined inclination with respect to the Z direction. Further, the extending direction of the obliquely inserted screw 20 may be parallel to the X direction, but may be made perpendicular to the extending direction of the body portion 100 so as to be parallel to the Y direction as necessary. The extension direction of the screw 20 may be located between the X direction and the Y direction. Hereinafter, the angle formed between the extension direction of the screw 20 and the Z direction is also referred to as 'slope', and the angle formed between the extension direction of the screw 20 and the X direction is also referred to as the 'direction' of the screw 20. . The inclination and angle of the screw 20 inserted into the bone 1 is formed by the direction and inclination of the non-orthogonal through-hole. The inclination of the screw 20 corresponds to the inclination of the non-orthogonal through-hole, and the inclination of the screw 20 corresponds to the direction of the non-orthogonal through-hole.

The inclination and direction of the non-orthogonal through-hole are not limited to the drawings and the foregoing description. Furthermore, the inclination and direction of the non-orthogonal through-hole may be configured to be adjustable. When the screw 20 is fixed to the bone 1 through a through hole other than the non-orthogonal through hole, the angle formed between the extension direction of the screw 20 and the extension direction of the body part 100 is about 93 degrees to 88 degrees. A through-hole that is not a non-orthogonal through-hole is also called an orthogonal through-hole. When the screw 20 is fixed to the bone 1 through the non-orthogonal through-hole, the angle formed between the extension direction of the screw 20 and the body portion 100 may be formed to be at least 55 degrees.

Referring to FIG. 3, a predetermined angle is formed between the screws 20 inserted into the bone 1 through the fixing part 200 and the Z-direction orthogonal to the bone junction plate is obliquely shifted. is shown In particular, the screws 20 are inserted obliquely into the bone (1) to the outside of the bone joint plate for bone (1) to improve the fixing force to be fixed to the bone plate for bone (1). As the fixing force is improved, a plate for bone joining having a shorter body portion 100 than the conventional plate for bone joining can be used.

Referring to FIGS. 4 (a) and (b), in FIG. 4 (b), the extension direction of the screw 20 is obliquely shifted at a predetermined angle even with respect to the X direction, whereas FIG. 4 (a) is They are placed without deviation. A plurality of non-orthogonal through-holes configured to insert screws 20 in various directions are provided in the body portion 100 according to an embodiment of the present invention.

The direction and angle at which the screw 20 is deviated when the screw 20 is inserted may vary depending on the thickness and strength of the bone 1 to which the bone junction plate is fixed, the length of the bone junction plate required to fix the bone 1, and the like. The fixing unit 200 may include a non-orthogonal through-hole formed in a required direction and inclination. To this end, the user first performs CT scan and bone strength measurement. The user analyzes the results of the performance to fit a bone junction plate comprising a body part 100 having a length suitable for being fixed to the bone 1 and a fixing part 200 having a non-orthogonal through-hole having a suitable direction and inclination. can produce The bone bonding plate can be produced through 3D printing.

The direction and inclination of the non-orthogonal through-hole may be configured to be changed according to a user's manipulation even after production. This will be described later.

5 is a perspective view of a cutting guide cutting guide according to an embodiment of the present invention.

The bone bonding plate 2000 according to another embodiment of the present invention may be provided with a cutting guide 2010 integrally. The cutting guide 2010 may include a plurality of guides 2013 based on an axis 2015 fixed to the bone 1 rather than a straight line having a predetermined angle. In this case, the plurality of guides 2013 may take a V-shape as an example. When cutting the bone 1 in a straight line in an oblique direction, if a force is applied in only one direction, the bone 1 may be twisted. A torsion force may be generated between the bone 1 and the bone cutting blade 30 due to the torsion of the bone 1 . At this time, a phenomenon in which the bone 1 is not cut at once as desired by the twisting force may occur. This means that the operation may not be performed smoothly.

The cutting guide 2010 according to the present embodiment includes a plurality of guides 2013 formed to have a predetermined angle with respect to the axis 2015, thereby eliminating the twisting phenomenon of the bone 1 being cut. is advantageous to the force, thereby allowing the operation to be performed smoothly.

6 is an exploded view of a cutting guide separated and coupled according to an embodiment of the present invention.

The bone junction plate according to an embodiment of the present invention includes a first body 110 and a second body 120 for fixing by being coupled to the bone (1). The first body 110 and the second body 120 are detachably coupled through the second body coupling means 1201 and the first body coupling groove 1100 . A guide body 130 including a cutting guide 1301 for a user to easily cut the bone 1 may be coupled between the first body 110 and the second body 120 .

The second body coupling means 1201 is configured to be inserted into the first body coupling groove 1100 or the guide body coupling groove 1305 . The second body coupling means 1201 and the guide body coupling means 1303 are inserted into the first body coupling groove 1100 and the guide body coupling groove 1305 so as not to be easily detached through an additional operation. For example, a protruding fixing part is formed inside the first body coupling groove 1100 and the guide body coupling groove 1305 , and a groove fixing part is formed in the second body coupling means 1201 and the guide body coupling means 1303 to form the second When the body coupling means 1201 and the guide body coupling means 1303 are inserted into the first body coupling groove 1100 and the guide body coupling groove 1305 by a predetermined depth or more, the protrusion fixing part and the groove fixing part are coupled and not detached. can be fixed. The protrusion fixing part may be accommodated inside the first body coupling groove 1100 and the guide body coupling groove 1305 through manipulation of a button, etc. to facilitate detachment again. The protrusion fixing part and the groove fixing part are formed in plurality to more stably couple the second body coupling means 1201 and the guide body coupling means 1303 to the first body coupling groove 1100 and the guide body coupling groove 1305. can be

The guide body coupling means 1303 is configured to be inserted into the first body coupling groove 1100 . The second body coupling means 1201 and the guide body coupling means 1303 may be configured to protrude to the outside of the second body 120 and the guide body 130 or to be accommodated therein according to a user's manipulation. In order to operate the second body coupling means 1201 and the guide body coupling means 1303 , operating means 1200 and 1300 may be provided on the guide body 130 and the second body 120 . The operating means 1200 and 1300 are configured to be rotatable through a driver 40 or the like, for example. For example, when the user rotates the operating means 1200 and 1300 in a clockwise direction, the second body coupling means 1201 and the guide body coupling means 1303 protrude. When the user rotates the operating means 1200. 1300 in a counterclockwise direction, the second body coupling means 1201 and the guide body coupling means 1303 can be retracted into the body. Through this, the user can easily couple and detach each body 110 , 120 , 130 from each other.

The first body 110 and the second body 120 may be fixed bodies without distinction. The fixing body may be provided with both a coupling means and a coupling groove. The body part 100 according to an embodiment may include various numbers of fixing bodies. In this case, all of the fixing bodies used may have the same configuration. The user may form the body portion 100 by combining the necessary number of fixing bodies to efficiently and better fix the bone (1). If necessary, the fixing body may be provided to have a different direction or curvature from the longitudinal direction in which the bone junction plate is extended. In a specific fixing body, coupling means and coupling grooves may be provided on both sides as well as front and rear.

Accordingly, the bone bonding plate according to the present embodiment can be used for bonding not only when the straight bone 1 but also when the bone 1 is partially curved or when it is necessary to fix the bone 1 in a wide range.

1 - bone
100 - body part
110 - first body
120 - second body
130 - guide body
200 - fixed part
20 - screw
30 - blade for cutting the bone
40 - driver

Claims (5)

In the bone bonding plate,
a body part fixed to the first and second valleys and configured to hold the first and second valleys; and
and a plurality of through-holes inserted into the first and second valleys so that screws for fixing the body to the first and second valleys pass through, at least one of the plurality of through-holes comprises: and an inclined through-hole formed to be inclined in the extending direction of both ends of the body so that at least a portion of the screw is inserted and fixed to the first and second valleys in the extending direction of both ends of the body, and the body part and a fixing part configured to be fixed to the first valley part and the second valley part;
Bone joint plate formed in the central region of the body portion, characterized in that it comprises a cutting guide for guiding the cutting of the end of the first trough and the end of the second trough. According to claim 1,
The inclined through-hole is a bone joint plate configured to be able to adjust the direction or inclination in which the screw is inserted. 3. The method of claim 2,
The inclination through-hole is a bone bonding plate that is additionally provided with a display means for displaying the direction or inclination in which the screw is inserted. According to claim 1,
The body portion includes a first body fixed to the first trough and a second body fixed to the second trough, wherein the first body and the second body are configured to be detachably coupled to each other. bonding plate. delete

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