Guide module having oblique installation pins

The present invention relates to a guide module having oblique installation pins, the guide module including: a first installation pin unit penetratively inserted into one side of an aligned bone; a second installation pin unit penetratively inserted into the other side of the aligned bone; a reposition guide unit simultaneously penetrated by the first installation pin unit and the second installation pin unit and being simultaneously in contact with one side of the aligned bone and the other side of the aligned bone; and a compression guide unit disposed adjacent to the reposition guide unit and simultaneously penetrated by the first installation pin unit and the second installation pin unit, in which imaginary central axes of holes of the reposition guide unit penetrated by the first installation pin unit and the second installation pin unit are spaced apart, at a predetermined interval in a vertical direction, from imaginary central axes of holes of the compression guide unit. Therefore, the aligned bone may be compressed.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is the U.S. National Phase under 35 U.S.C. § 371 of International Application No. PCT/KR2019/016098 filed on Nov. 22, 2019, which in turn claims the benefit of Korean Application No. 10-2019-0150940, filed on Nov. 22, 2019, the disclosures of which are incorporated by reference into the present application.

TECHNICAL FIELD

The present invention relates to a guide module having oblique installation pins, and more particularly, to a guide module having oblique installation pins, in which central axes of holes of a reposition guide and central axes of holes of a compression guide or a fixing guide are not coincident with each other, such that the installation pins, which penetrate all of the holes, are oblique and thus may compress an aligned bone and coupling force between a reposition guide unit and the installation pins may be increased.

BACKGROUND ART

The knee has one of the largest joints in the body and plays an important role in daily life. The knee is divided into three sections including a proximal section, a distal section, and a patellar/femoral section.

Degenerative osteoarthritis affects only one section of the knee, and in most cases, the proximal section is usually most commonly damaged. In case of such asymmetrical damage, the osteotomy serves to move the weight bearing line to a healthy section to relieve pain and slow the progression of arthritis.

Corrective osteotomy for treating degenerative osteoarthritis is broadly classified into closing osteotomy and opening osteotomy. The closing osteotomy is a method that removes a wedge-shaped bone segment and then closes a gap. The opening osteotomy is a method that opens a bone to the extent that deformation is needed, fixes the bone with a metal material, and then performs bone grafting in an opened gap.

FIGS. 1 to 4are views illustrating a surgical procedure of the corrective osteotomy in the related art. Hereinafter, a surgical procedure and a problem of the corrective osteotomy in the related art will be described with reference toFIGS. 1 to 4.

First, as illustrated inFIG. 1, a surgical guide10for osteotomy is matched with a bone1. The surgical guide10includes support portions11, drilling guides12, and cutting guides13. The support portions11are complementarily coupled to a surface of the bone1. The pair of support portions11, the pair of drilling guides12, and the pair of cutting guides13are provided at one side and the other side based on a site to be subjected to osteotomy.

The operator penetratively inserts installation pins20into holes H formed in the drilling guides12to temporarily fix the surgical guide10and the bone1, and cuts the bone1by inserting cutters30into slots S formed in the cutting guides13, as illustrated inFIG. 2. In this case, the pair of cutting guides13has an angle therebetween so that the bone1to be subjected to the osteotomy has a wedge shape.

Next, when the operator removes the surgical guide10, the bone1is separated into two bones1aand1bat a cut site A, as illustrated inFIG. 3. As illustrated inFIG. 4, the two bones1aand1bare aligned (an alignment site (or osteotomy site) ‘B’ is formed), and a reposition guide40is coupled along the installation pins20. The reposition guide40serves to maintain the aligned two bones1aand1bin accordance with a surgical plan.

However, all the plurality of installation pins20coupled to the reposition guide40in the related art is generally parallel to one another, and the reposition guide40is often slipped off along the parallel installation pins20. For this reason, the reposition guide40cannot properly serve to maintain the aligned two bones1aand1bin accordance with the surgical plan, such that after the surgical procedure is completed, the bone1is not properly aligned or the gap between the two bones1aand1bis not be sufficiently decreased at the osteotomy site B, which causes a problem in that the bone1is slowly joined during a process of healing the bone1after the surgical procedure. Accordingly, there is a need for a method capable of properly maintaining the alignment between the bone1and surgical tools associated with the use of the reposition guide40, and there is also a need for an invention capable of sufficiently decreasing the gap in the bone1after the surgical procedure.

DOCUMENT OF RELATED ART

Patent Document

DISCLOSURE

Technical Problem

The present invention relates to a guide module having oblique installation pins, and more particularly, to a guide module having oblique installation pins, in which central axes of holes of a reposition guide and central axes of holes of a compression guide or a fixing guide are not coincident with each other, such that the installation pins, which penetrate all of the holes, are oblique and thus may compress an aligned bone and coupling force between a reposition guide unit and the installation pins may be increased.

Technical Solution

In order to achieve the above-mentioned object, a guide module having oblique installation pins according to the present invention includes: a first installation pin unit penetratively inserted into one side of an aligned bone; a second installation pin unit penetratively inserted into the other side of the aligned bone; a reposition guide unit simultaneously penetrated by the first installation pin unit and the second installation pin unit and being simultaneously in contact with one side of the aligned bone and the other side of the aligned bone; and a compression guide unit disposed adjacent to the reposition guide unit and simultaneously penetrated by the first installation pin unit and the second installation pin unit, in which imaginary central axes of holes of the reposition guide unit penetrated by the first installation pin unit and the second installation pin unit are spaced apart, at a predetermined interval in a vertical direction, from imaginary central axes of holes of the compression guide unit.

In the guide module having oblique installation pins according to the present invention, the imaginary central axis of the hole of the reposition guide unit penetrated by the first installation pin unit may be positioned more proximally than the imaginary central axis of the hole of the compression guide unit penetrated by the first installation pin unit.

In the guide module having oblique installation pins according to the present invention, the imaginary central axis of the hole of the reposition guide unit penetrated by the second installation pin unit may be positioned more proximally than the imaginary central axis of the hole of the compression guide unit penetrated by the second installation pin unit.

In the guide module having oblique installation pins according to the present invention, the pair of first installation pin units and the pair of second installation pin units may be provided. In addition, a guide module having oblique installation pins according to another exemplary embodiment of the present invention includes: a pair of first installation pin units penetratively inserted into one side of an aligned bone; a pair of second installation pin units penetratively inserted into the other side of the aligned bone; a reposition guide unit simultaneously penetrated by the first installation pin units and the second installation pin units and being simultaneously in contact with one side of the aligned bone and the other side of the aligned bone; and a fixing guide unit disposed adjacent to the reposition guide unit and simultaneously penetrated by the pair of first installation pin units, in which imaginary central axes of a pair of holes of the reposition guide unit penetrated by the pair of first installation pin units are spaced apart, at a predetermined interval in a vertical direction, from imaginary central axes of a pair of holes of the fixing guide unit.

Advantageous Effects

According to the exemplary embodiment of the present invention, the first installation pin units and the second installation pin units penetrate the compression guide unit, the first installation pin units, which are positioned at the upper side based on the alignment site, are in the form of an oblique line inclined in the direction from the upper side to the lower side, and the second installation pin units, which are positioned at the lower side based on the alignment site, are in the form of an oblique line inclined in the direction from the lower side to the upper side, such that the alignment site of the bone may be compressed.

In addition, according to the exemplary embodiment of the present invention, the first installation pin units penetrate the fixing guide unit, the first-of-first installation pin unit, which is positioned at the upper side based on the reposition guide unit, is in the form of an oblique line inclined in the direction from the upper side to the lower side, and the second-of-first installation pin unit, which is positioned at the lower side based on the reposition guide unit, is in the form of an oblique line inclined in the direction from the lower side to the upper side, such that coupling force between the reposition guide unit and the first installation pin units is increased.

BEST MODE

Hereinafter, exemplary embodiments of the present invention will be described in detail so that those with ordinary skill in the art to which the present invention pertains may easily carry out the exemplary embodiments. However, the present invention may be implemented in various different ways and is not limited to the exemplary embodiments described herein.

A guide module according to the present invention includes first installation pin units20a, second installation pin units20b, a reposition guide unit40, and a compression guide unit100. Hereinafter, a configuration and an effect of the guide module according to the present invention will be described with reference toFIG. 5.

The pair of first installation pin units20amay be provided and penetratively inserted into one side1aof a bone. However, the present invention is not limited to the number of first installation pin units20a. In addition, the first installation pin units20ainclude a first-of-first installation pin unit21aand a second-of-first installation pin unit22a. The first-of-first installation pin unit21ais positioned more distally than the second-of-first installation pin unit22abased on an alignment site B where one side1aof the bone and the other side1bof the bone are aligned. Hereinafter, the terms ‘proximal’ and ‘distal’ are defined based on the alignment site B where one side1aof the bone and the other side1bof the bone are aligned.

As described below, the pair of first installation pin units20ais disposed in the form of an oblique line so that ends of the pair of first installation pin units20abecome closer to the alignment site B.

The pair of second installation pin units20bmay be provided and penetratively inserted into the other side1bof the bone. However, the present invention is not limited to the number of second installation pin units20b. In addition, like the first installation pin units20a, the second installation pin units20binclude a first-of-second installation pin unit21band a second-of-second installation pin unit22b.

As described below, the pair of second installation pin units20bis disposed in the form of an oblique line so that ends of the pair of second installation pin units20bbecome closer to the alignment site B.

The reposition guide unit40is penetrated simultaneously by the first installation pin units20aand the second installation pin units20b. In addition, the reposition guide unit40is in contact with both of one side1aof the bone and the other side1bof the bone. Therefore, the reposition guide unit40serves to support the alignment between one side1aof the bone and the other side1bof the bone.

The reposition guide unit40has first reposition guide unit holes41penetrated by the first installation pin units20a, and second reposition guide unit holes42penetrated by the second installation pin units20b.

In the case in which the pair of first installation pin units20ais provided, the pair of first reposition guide unit holes41is also provided and includes a first-of-first reposition guide unit hole41aand a second-of-first reposition guide unit hole41b. In addition, the second-of-first reposition guide unit hole41bis formed more proximally than the first-of-first reposition guide unit hole41a.

Likewise, in the case in which the pair of second installation pin units20bis provided, the pair of second reposition guide unit holes42is also provided and includes a first-of-second reposition guide unit hole42aand a second-of-second reposition guide unit hole42b. In this case, the first-of-second reposition guide unit hole42aand the second-of-second reposition guide unit hole42bmay be positioned on the same line in a width direction.

All of the first-of-first reposition guide unit hole41a, the second-of-first reposition guide unit hole41b, the first-of-second reposition guide unit hole42a, and the second-of-second reposition guide unit hole42bhave imaginary central axes, respectively. This configuration will be described in detail below.

FIG. 6is a view illustrating the compression guide unit100according to the present invention.

Both the first installation pin unit20aand the second installation pin unit20bare penetratively inserted into the compression guide unit100, and the compression guide unit100is positioned adjacent to the reposition guide unit40.

The compression guide unit100includes a compression guide unit main body101, and a plurality of holes penetrated by the first installation pin units20aand the second installation pin units20b. The plurality of holes includes first compression guide unit holes110and second compression guide unit holes120. The first compression guide unit holes110are formed at positions corresponding to the first reposition guide unit holes41, and the second compression guide unit holes120are formed at positions corresponding to the second reposition guide unit holes42.

Therefore, the pair of first compression guide unit holes110and the pair of second compression guide unit holes120are provided. The first compression guide unit holes110include a first-of-first compression guide unit hole111and a second-of-first compression guide unit hole112. In this case, like the first reposition guide unit holes41, the second-of-first compression guide unit hole112is positioned more proximally than the first-of-first compression guide unit hole111.

Likewise, the second compression guide unit holes120include a first-of-second compression guide unit hole121and a second-of-second compression guide unit hole122. In this case, the first-of-second compression guide unit hole121and the second-of-second compression guide unit hole122are positioned on the same line in the width direction.

All of the first-of-first compression guide unit hole111, the second-of-first compression guide unit hole112, the first-of-second compression guide unit hole121, and the second-of-second compression guide unit hole122have imaginary central axes, respectively. This configuration will be described in detail below.

FIG. 7is a view illustrating a state in which the first-of-first installation pin unit21ais penetratively inserted sequentially and simultaneously into the first-of-first compression guide unit hole111, the first-of-first reposition guide unit hole41a, and one side1aof the bone.

As illustrated inFIG. 7, the imaginary central axis C1of the first-of-first reposition guide unit hole41apenetrated by the first-of-first installation pin unit21ais spaced apart, at a predetermined interval d in a vertical direction, from the imaginary central axis C2of the first-of-first compression guide unit hole111penetrated by the first-of-first installation pin unit21a. In addition, the imaginary central axis C1of the first-of-first reposition guide unit hole41ais positioned more proximally than the imaginary central axis C2of the first-of-first compression guide unit hole111.

With this configuration, the first-of-first installation pin unit21asequentially penetrates the first-of-first compression guide unit hole111, the first-of-first reposition guide unit hole41a, and one side1aof the bone so that the end of the first-of-first installation pin unit21ais penetratively inserted in the form of an oblique line directed toward the alignment site B, as illustrated inFIG. 8. As an example, the first-of-first installation pin unit21ais inclined in a direction from an upper side to a lower side while having a predetermined angle θ1with respect to the imaginary central axis C1of the first-of-first reposition guide unit hole41a.

FIG. 8is an enlarged view of the first installation pin units20aand the second installation pin units20b.

Like the first-of-first installation pin unit21aformed in the form of an oblique line, the imaginary central axis of the second-of-first reposition guide unit hole41bpenetrated by the second-of-first installation pin unit22ais spaced apart, at the predetermined interval d in the vertical direction, from the imaginary central axis of the second-of-first compression guide unit hole112penetrated by the second-of-first installation pin unit22a. In addition, the imaginary central axis of the second-of-first reposition guide unit hole41bis positioned more proximally than the imaginary central axis of the second-of-first compression guide unit hole112.

Therefore, like the first-of-first installation pin unit21a, the end of the second-of-first installation pin unit22ais penetratively inserted in the form of an oblique line directed toward the alignment site B. As an example, the second-of-first installation pin unit22ais inclined while having a predetermined angle θ2with respect to the imaginary central axis of the second-of-first reposition guide unit hole41b.

In addition, the imaginary central axis of the first-of-second reposition guide unit hole42apenetrated by the first-of-second installation pin unit21bis spaced apart, at the predetermined interval d in the vertical direction, from the imaginary central axis of the first-of-second compression guide unit hole121penetrated by the first-of-second installation pin unit21b. In addition, the imaginary central axis of the first-of-second reposition guide unit hole42ais positioned more proximally than the imaginary central axis of the first-of-second compression guide unit hole121.

In this case, unlike the first reposition guide unit holes41and the first compression guide unit holes110, the second reposition guide unit holes42and the second compression guide unit holes120are positioned at the lower side from the alignment site B. Therefore, in the case in which the imaginary central axis of the first-of-second reposition guide unit hole42ais positioned more proximally than the imaginary central axis of the first-of-second compression guide unit hole121, the first-of-second installation pin unit21b, which sequentially penetrates the first-of-second compression guide unit hole121, the first-of-second reposition guide unit hole42a, and the other side1bof the bone, is inclined in the direction from the lower side to the upper side, unlike the first installation pin unit20a. Based onFIG. 8, the first-of-second installation pin unit21bis inclined in the direction from the lower side to the upper side while having a predetermined angle θ3with respect to the imaginary central axis of the first-of-second reposition guide unit hole42a.

As described above, since the second-of-second installation pin unit22band the first-of-second installation pin unit21bare positioned on the same line in the width direction, the second-of-second installation pin unit22bis also inclined in the direction from the lower side to the upper side, like the first-of-second installation pin unit21b. Based onFIG. 8, the second-of-second installation pin unit22bis inclined in the direction from the lower side to the upper side while having a predetermined angle θ4with respect to the imaginary central axis of the second-of-second reposition guide unit hole42b.

With this arrangement, as illustrated inFIG. 4, based on the alignment site B, the first installation pin unit20ais in the form of an oblique line inclined in the direction from the upper side to the lower side, and the second installation pin unit20bis in the form of an oblique line inclined in the direction from the lower side to the upper side. Therefore, the first installation pin units20aand the second installation pin units20bpress, in the opposite directions, the alignment site B of the bone, thereby compressing the alignment site B of the bone. In addition, the reposition guide unit40and the compression guide unit50, which are penetrated by the first installation pin units20aand the second installation pin units20b, are also compressed and thus hardly withdrawn. Therefore, unlike the parallel installation pins in the related art, the alignment site B of the bone is compressed, and the reposition guide unit40and the compression guide unit50are hardly withdrawn, such that fixing force is increased.

FIG. 9is a view illustrating a configuration of a guide module according to another exemplary embodiment of the present invention.

In the case of the guide module according to another exemplary embodiment, only the first installation pin units20aare inserted into the compression guide unit100. For convenience of description, hereinafter, the compression guide unit according to another exemplary embodiment is referred to as a fixing guide unit200.

FIG. 10is a view illustrating the fixing guide unit200according to the present invention.

The fixing guide unit200is disposed adjacent to the reposition guide unit40and penetrated by the pair of first installation pin units20a.

The fixing guide unit200has a fixing guide unit main body201and fixing guide unit holes210. The pair of fixing guide unit holes210is provided and includes a first fixing guide unit hole211and a second fixing guide unit hole212. The first fixing guide unit hole211is penetrated by the first-of-first installation pin unit21a, and the second fixing guide unit hole212is penetrated by the second-of-first installation pin unit22a.

FIG. 11is an enlarged view illustrating a state in which the first-of-first installation pin unit21asequentially penetrates the first fixing guide unit hole211, the first-of-first reposition guide unit hole41a, and one side1aof the bone, and the second-of-first installation pin unit22asequentially penetrates the second fixing guide unit hole212, the second-of-first reposition guide unit hole41b, and one side1aof the bone.

Unlike the compression guide unit100, the fixing guide unit200is penetrated only by the first installation pin units20a. As illustrated inFIG. 11, the imaginary central axis of the first-of-first reposition guide unit hole41apenetrated by the first-of-first installation pin unit21ais spaced apart, at the predetermined interval d in the vertical direction, from the imaginary central axis of the first fixing guide unit hole211penetrated by the first-of-first installation pin unit21a. In addition, the imaginary central axis of the first-of-first reposition guide unit hole41ais positioned more proximally than the imaginary central axis of the first fixing guide unit hole211. With this configuration, the first-of-first installation pin unit21asequentially penetrates the first fixing guide unit hole211, the first-of-first reposition guide unit hole41a, and one side1aof the bone so that the end of the first-of-first installation pin unit21ais penetratively inserted in the form of an oblique line directed toward the alignment site B. As an example, the first-of-first installation pin unit21ais inclined in the direction from the upper side to the lower side while having a predetermined angle θ5with respect to the imaginary central axis of the first-of-first reposition guide unit hole41a.

In this case, unlike the compression guide unit100, the second-of-first installation pin unit22ais inclined in the direction from the lower side to the upper side. The imaginary central axis of the second-of-first reposition guide unit hole41bpenetrated by the second-of-first installation pin unit22ais spaced apart, at the predetermined interval d in the vertical direction, from the imaginary central axis of the second fixing guide unit hole212penetrated by the second-of-first installation pin unit22a. In addition, the central axis of the second-of-first reposition guide unit hole41bis positioned more distally than the imaginary central axis of the second fixing guide unit hole212. With this configuration, the second-of-first installation pin unit22asequentially penetrates the second fixing guide unit hole212, the second-of-first reposition guide unit hole41a, and one side2aof the bone so that the end of the second-of-first installation pin unit22ais penetratively inserted in the form of an oblique line directed toward the alignment site B. As an example, the second-of-first installation pin unit22ais inclined in the direction from the lower side to the upper side while having a predetermined angle θ6with respect to the imaginary central axis of the second-of-first reposition guide unit hole41b.

With this arrangement, as illustrated inFIG. 9, the first-of-first installation pin unit21ais in the form of an oblique line inclined in the direction from the upper side to the lower side, and the second-of-first installation pin unit22ais in the form of an oblique line inclined in the direction from the lower side to the upper side. Therefore, unlike the exemplary embodiment, the first installation pin units20acompress the reposition guide unit40instead of the alignment site B of the bone. Therefore, coupling force and fixing force between the reposition guide unit40and the first installation pin units20aare increased. The operator may selectively utilize the compression guide unit100and the fixing guide unit200in accordance with environments.

Although preferred examples of the present invention have been described in detail hereinabove, the right scope of the present invention is not limited thereto, and it should be clearly understood that many variations and modifications of those skilled in the art using the basic concept of the present invention, which is defined in the following claims, will also belong to the right scope of the present invention.

INDUSTRIAL APPLICABILITY

The present invention relates to a guide module having oblique installation pins, and more particularly, to a guide module having oblique installation pins, in which central axes of holes of a reposition guide and central axes of holes of a compression guide or a fixing guide are not coincident with each other, such that the installation pins, which penetrate all of the holes, are oblique and thus may compress an aligned bone or increase coupling force between a reposition guide unit and the installation pins.