KR102752999B1 - A simple suture anchor - Google Patents

Abstract

According to one embodiment of the present invention, a simple suture anchor comprises: an outer body which is coupled to a bone at a lesion site, has a pair of through holes formed into which a suture is inserted, and has an insertion portion formed in communication with the pair of through holes; and an inner body which is rotatably inserted into the insertion portion and has a communication hole formed in communication with the pair of through holes, into which the suture is respectively inserted, wherein the suture is compressed and fixed or compressed and fixed between the outer body and the inner body according to the rotation of the inner body, a hooking projection is formed on one of the outer body and the inner body, and a plurality of hooking grooves which are formed at intervals along the rotational direction of the inner body so that the inner body is fixed at a specific angle with respect to the outer body may be formed on the other of the outer body and the inner body, and to which the hooking projections are selectively fixed.

Description

{A SIMPLE SUTURE ANCHOR}

The present invention relates to a simple suture anchor.

Within the human body, soft tissues such as tendons, ligaments, and muscles are mostly attached to the bones of the skeleton. Among the soft tissues, tendons are fibrous tissues with elasticity that stabilize or limit the movement of joints, making them susceptible to damage from strong impact.

Tendon injuries include sprains, twists, tears, and ruptures. Tendon ruptures most often occur at the point where the tendon meets the bone.

For surgeries to reattach tendons that have been torn from the bone, suture anchors are used. For example, surgeries to reattach tendons that have been torn from the bone include rotator cuff repair.

The suture anchor may include a suture and an anchor. Here, the anchor may include an outer screw to which an inner screw is screwed. Additionally, the suture may be secured between the inner screw and the outer screw.

The surgery to re-suture a severed tendon to the bone using a suture anchor is performed by making an incision in the skin of the lesion with a medical knife, allowing surgical instruments to approach the lesion using a trocar, approaching the lesion with an anchor through the trocar, determining the site of tendon ligation, and inserting two anchors through the tendon to the bone to secure it, then pulling the sutures attached to the two anchors to maintain an appropriate amount of tension on the ligated tendon, and then rotating the inner screw to secure the suture between the outer screw and the inner screw.

Therefore, when performing a surgery to reattach a tendon that has been severed from a bone using a conventional suture anchor, the anchor must be inserted into the bone at the lesion site and connected, and then the steps of 1) passing the suture attached to the anchor through the torn tendon using an instrument in the very narrow space at the lesion site, and 2) tying the tendon at the lesion site with the suture must be repeated repeatedly, which increases the difficulty of the surgery and makes it difficult to gain surgical skills.

Domestic Patent Publication No. 10-1815589 (December 29, 2017)

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a simple suture anchor that can simplify the surgical process by eliminating the process of passing a suture through a torn tendon at a lesion site and the process of tying the suture when performing a surgery to re-suture a tendon that has been severed from a bone at a lesion site.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

According to one embodiment of the present invention, a simple suture anchor comprises: an outer body which is coupled to a bone at a lesion site, has a pair of through holes formed into which a suture is inserted, and has an insertion portion formed in communication with the pair of through holes; and an inner body which is rotatably inserted into the insertion portion and has communication holes formed in communication with the pair of through holes, into which the suture is respectively inserted, wherein the suture is compressed and fixed or compressed and fixed between the outer body and the inner body according to the rotation of the inner body, a hooking projection is formed on one of the outer body and the inner body, and a plurality of hooking grooves which are formed at intervals along the rotational direction of the inner body so that the inner body is fixed at a specific angle with respect to the outer body may be formed on the other of the outer body and the inner body, and to which the hooking projections are selectively fixed.

In addition, depending on the rotation of the inner body, if the through hole and the communication hole are misaligned on the same axis, the suture may be compressed and fixed, or if the through hole and the communication hole are coaxially arranged, the compression and fixation of the suture may be released.

In addition, the through hole may have a shape in which the cross-sectional area increases from the outer surface of the outer body to the inner surface of the outer body, and the communication hole may have a shape in which the cross-sectional area decreases from the outer surface of the inner body to the central axis of the inner body.

Additionally, the diameter of the through hole formed on the inner surface of the outer body may correspond to the diameter of the communication hole formed on the outer surface of the inner body.

In addition, a locking projection may be formed on one of the insertion portion and the inner body, and a locking groove may be formed on the other of the insertion portion and the inner body to be locked with the locking projection when the inner body is inserted into the insertion portion.

Additionally, the locking projection and the locking groove may be provided along the axial direction of the insertion portion.

Additionally, the through holes may be formed in multiple numbers at intervals along the axial direction of the outer body.

In addition, the above-mentioned communicating holes may be formed in multiple numbers at intervals along the axial direction of the inner body.

Additionally, the insertion portion may be formed along the axial direction of the outer body.

According to one embodiment of the present invention, when performing a surgery to re-suture a tendon that has been severed from a bone at a lesion site, a simple suture anchor can omit the process of passing the suture through the torn tendon at the lesion site and the process of tying the suture, thereby simplifying the surgical process.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

FIG. 1 is a perspective view showing a simple suture anchor according to one embodiment of the present invention.
Figure 2 is a cross-sectional view showing a simple suture anchor according to one embodiment of the present invention.
FIG. 3 is an exploded perspective view showing a simple suture anchor according to one embodiment of the present invention.
Figure 4 is an exploded cross-sectional view showing a simple suture anchor according to one embodiment of the present invention.
Figure 5 is a cross-sectional view taken along line AA` of Figure 1.
FIG. 6 is a cross-sectional view showing a state in which a suture is compressed and fixed between an outer body and an inner body of a simple suture anchor according to one embodiment of the present invention, based on the AA` cross-sectional view of FIG. 1.
FIG. 7 is a perspective view showing a state in which a suture is compressed and fixed between an outer body and an inner body of a simple suture anchor according to one embodiment of the present invention.
FIG. 8 is a perspective view showing a state in which a plurality of simple suture anchors are mutually connected according to one embodiment of the present invention.
FIG. 9 is a perspective view showing a plurality of simple suture anchors according to another embodiment of the present invention.

The advantages and features of the present invention, and the methods for achieving them, will become clear with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and the present embodiments are provided only to make the disclosure of the present invention complete and to fully inform a person skilled in the art of the scope of the present invention, and the present invention is defined only by the scope of the claims.

The terminology used herein is for the purpose of describing embodiments only 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. The terms "comprises" and/or "comprising" as used in the specification do not exclude the presence or addition of one or more other components in addition to the mentioned components. Like reference numerals refer to like components throughout the specification, and "and/or" includes each and every combination of one or more of the mentioned components. Although "first", "second", etc. are used to describe various components, it is to be understood that these components are not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it should be understood that a first component mentioned below may also be a second component within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with the meaning commonly understood by those skilled in the art to which the present invention belongs. In addition, terms defined in commonly used dictionaries shall not be ideally or excessively interpreted unless explicitly specifically defined.

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

FIG. 1 is a perspective view showing a simple suture anchor according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a simple suture anchor according to an embodiment of the present invention, FIG. 3 is an exploded perspective view showing a simple suture anchor according to an embodiment of the present invention, FIG. 4 is an exploded cross-sectional view showing a simple suture anchor according to an embodiment of the present invention, FIG. 5 is a cross-sectional view taken along line A-A` of FIG. 1, FIG. 6 is a cross-sectional view taken along line A-A` of FIG. 1 showing a state in which a suture (10) is compressed and fixed between an outer body (100) and an inner body (200) of a simple suture anchor according to an embodiment of the present invention, and FIG. 7 is a perspective view showing a state in which a suture (10) is compressed and fixed between an outer body (100) and an inner body (200) of a simple suture anchor according to an embodiment of the present invention.

As illustrated in FIGS. 1 to 5, a simple suture anchor according to one embodiment of the present invention may include an outer body (100) and an inner body (200). Overall, in a simple suture anchor according to one embodiment of the present invention, an inner body (200) may be rotatably inserted into an insertion portion (120) of an outer body (100), and a suture (10) may be inserted in advance into a through hole (110) formed in the outer body (100) and a communication hole (210) formed in the inner body (200).

The outer body (100) functions to be joined to the bone of the lesion site with the suture (10) inserted in advance. Here, the suture (10) may include a ligament suture (10) that is bound to the ligament of the lesion site and a connecting suture (10) for connection to another simple suture anchor.

The outer body (100) is joined to the bone of the lesion site, and a pair of through holes (110) into which sutures (10) are each inserted are formed, and an insertion portion (120) communicating with the pair of through holes (110) may be formed. Here, the outer body (100) may be joined to a trocar groove formed in the bone of the lesion site by a trocar. At this time, the outer body (100) may be joined to the trocar groove by receiving a blow from the trocar.

A pair of through holes (110) each serve to accommodate a suture (10).

When a pair of through holes (110) are viewed as a group, a plurality of groups of a pair of through holes (110) may be provided at intervals along the axial direction of the outer body (100). In addition, each of the through holes (110) may be formed to penetrate along a direction perpendicular to the axial direction of the outer body (100).

The insertion portion (120) serves to rotatably receive the inner body (200). This insertion portion (120) may be formed along the axial direction of the outer body (100). Specifically, the insertion portion (120) may be formed along the axial direction of the outer body (100) from the upper end of the outer body (100).

In one embodiment, the outer body (100) may have a nail shape, and the lower end of the outer body (100) may have a pointed shape. In addition, a latch projection (101) may be formed between the lower end and the upper end of the outer body (100) to prevent the outer body (100) from being detached from the trocar groove after being coupled to the trocar groove of the bone at the lesion site. This latch projection (101) may have a shape in which the diameter decreases toward the lower end of the outer body (100). In addition, an annular extension (102) may be formed around the upper end of the outer body (100). This extension (102) may serve to easily receive a blow by the trocar when the outer body (100) is coupled to the trocar groove formed in the bone at the lesion site by being hit by the trocar.

The inner body (200) can be rotatably inserted into the insertion portion (120), and a communication hole (210) communicating with a pair of through holes (110) can be formed. A suture (10) can be inserted into this communication hole (210).

The communication hole (210) can serve to accommodate a suture (10) together with a pair of through holes (110).

The communication holes (210) may be provided at intervals along the axial direction of the inner body (200). However, the present invention is not limited thereto, and a plurality of communication holes (210) may be provided at intervals along the axial direction of the inner body (200). In addition, each communication hole (210) may be formed to penetrate along a direction perpendicular to the axial direction of the inner body (200).

In one embodiment, the suture (10) inserted into the through hole (110) of the outer body (100) and the communication hole (210) of the inner body (200) can be compressed and fixed or released from the compression and fixation according to the rotation of the inner body (200) inserted into the insertion portion (120). For example, if the through hole (110) and the communication hole (210) are misaligned on the same axis according to the rotation of the inner body (200), the suture (10) can be compressed and fixed. Specifically, the suture (10) can be compressed and fixed in the gap between the outer surface of the inner body (200) and the inner surface of the outer body (100). (See FIG. 6)

In addition, depending on the rotation of the inner body (200), if the through hole (110) and the communication hole (210) are arranged coaxially, the compression fixation of the suture (10) can be released. Specifically, as the gap between the outer surface of the inner body (200) and the inner surface of the outer body (100) increases, the compression fixation of the suture (10) in the gap between the outer surface of the inner body (200) and the inner surface of the outer body (100) can be released. (See FIG. 5)

Furthermore, a catch projection (220) and a plurality of catch grooves (130) may be formed on the outer body (100) and the inner body (200) so that the inner body (200) is fixed at a specific angle with respect to the outer body (100).

For example, a catch (220) can be formed on the outer surface of the inner body (200), and a plurality of catch grooves (130) can be formed at intervals along the rotational direction of the inner body (200) on the inner surface of the outer body (100), so that the catch (220) can be selectively coupled.

However, the drawing shows an example in which a catch projection (220) is formed on the outer surface of the inner body (200) and a plurality of catch grooves (130) are formed at intervals along the rotational direction of the inner body (200) on the inner surface of the outer body (100), but the present invention is not limited thereto, and the catch projection may be formed on the inner surface of the outer body (100) and a plurality of catch grooves may be formed at intervals along the rotational direction of the inner body (200) on the outer surface of the inner body (200).

In addition, when the catch (220) is selectively fixed to a plurality of catch grooves (130), the specific angle at which the inner body (200) is fixed with respect to the outer body (100) may include a coaxial angle in which the through hole (110) of the outer body (100) and the communication hole (210) of the inner body (200) are arranged coaxially, and a non-coaxial angle in which the through hole (110) of the outer body (100) and the communication hole (210) of the inner body (200) are arranged coaxially but not oriented. Accordingly, by the rotation of the inner body (200), the catch can be fixed to one of the plurality of catch grooves (130) in which the inner body (200) forms a coaxial angle with respect to the outer body (100). In addition, by the rotation of the inner body (200), the engaging projection can be fixed to one of the plurality of engaging grooves (130) in which the inner body (200) forms a non-coaxial angle with respect to the outer body (100).

In one embodiment, the through hole (110) may have a shape in which the cross-sectional area increases from the outer surface of the outer body (100) to the inner surface of the outer body (100), and the communication hole (210) may have a shape in which the cross-sectional area decreases from the outer surface of the inner body (200) to the central axis of the inner body (200). Accordingly, when the suture (10) is press-fixed to the gap between the outer surface of the inner body (200) and the inner surface of the outer body (100), the suture (10) may be press-fixed between the curved portion of the communication hole (210) of the inner body (200) and the curved portion of the through hole (110) of the outer body (100), thereby preventing the suture (10) from being broken. (See FIG. 6)

In another embodiment, the diameter of the through hole (110) formed on the inner surface of the outer body (100) may correspond to the diameter of the communication hole (210) formed on the outer surface of the inner body (200). Accordingly, when the suture (10) is inserted into the communication area of the through hole (110) and the communication hole (210), the suture (10) can be prevented from getting caught.

In another embodiment, a locking projection (140) and a locking projection (140) that lock the outer body (100) and the inner body (200) when the inner body (200) is inserted into the insertion portion (120) of the outer body (100) may be formed in the insertion portion (120) of the outer body (100).

For example, the locking projection (140) may be formed in the insertion portion (120) of the outer body (100), and the locking groove (230) may be formed in the inner body (200). At this time, the locking projection (140) and the locking groove (230) may be provided along the axial direction of the insertion portion (120). The locking projection (140) may be formed to protrude along the axial direction of the insertion portion (120) on the bottom surface of the insertion portion (120), and the locking groove (230) may be formed to be recessed along the axial direction of the insertion portion (120) at the lower end of the inner body (200). These locking projections (140) and locking grooves (230) can serve to align the inner body (200) in the axial direction of the insertion portion (120) as the locking projections (140) and locking grooves (230) are mutually locked when the inner body is inserted into the insertion portion (120) of the outer body (100). In addition, the locking projections (140) and locking grooves (230) can also serve as a rotation axis of the inner body (200).

Meanwhile, the drawing illustrates an example in which a locking projection (140) is formed in the insertion portion (120) of the outer body (100) and a locking groove (230) is formed in the inner body (200), but the present invention is not limited thereto, and the locking projection may be formed in the inner body (200) and the locking groove may be formed in the outer body (100).

FIG. 8 is a perspective view showing a state in which a plurality of simple suture anchors are interconnected according to one embodiment of the present invention.

As illustrated in Fig. 8, one of the pair of sutures (10) of the plurality of simple suture anchors can serve to interconnect the plurality of simple suture anchors. In addition, the remaining one of the pair of sutures (10) of the plurality of simple suture anchors can be tied to the ligament of the lesion site.

Hereinafter, a surgical process for re-suturing a ligament that has been severed from a bone to a bone using a simple suture anchor according to various embodiments of the present invention will be described. The following process can be performed by a robotic arm or a surgeon under the control of a control unit.

First, the lesion area is incised with a medical knife.

Next, multiple trocar grooves are formed in the bone of the lesion site using a trocar.

Next, the outer bodies (100) of the plurality of simple suture anchors are respectively combined into the plurality of trocar grooves. At this time, each simple suture anchor has an inner body (200) inserted into the insertion portion (120) of the outer body (100), a pair of through holes (110) of the outer body (100) are respectively aligned coaxially with a communication hole (210) of the inner body (200), and a suture (10) is inserted in advance into the pair of through holes (110) and the communication hole (210).

Thereafter, one of the multiple sutures (10) of the simple suture anchor is tied to the ligament of the lesion site, and another of the multiple sutures (10) of the simple suture anchor is tied to another adjacent simple suture anchor.

Finally, the inner body (200) is rotated so that a pair of through holes (110) of the outer body (100) and a communication hole (210) of the inner body (200) are misaligned on the same axis. As a result, the suture (10) is pressed and fixed between the outer surface of the outer body (100) and the inner surface of the inner body (200).

According to the present invention, when performing a surgery to re-suture a ligament severed from a bone at a lesion site, a simple suture anchor according to one embodiment of the present invention can omit the process of inserting and fixing a suture (10) into an outer body (100) at the lesion site, thereby simplifying the surgical process.

Above, while the embodiments of the present invention have been described with reference to the attached drawings, it will be understood by those skilled in the art that the present invention may be implemented in other specific forms without changing the technical idea or essential features thereof. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

10: Suture
100: Outer body
110: Through hole
120: Insert
130: Hanging Home
140: Locking stud
200: Inner Body
210: Chimney hole
220: stumbling block
230: Locking Home

Claims (9)

An outer body formed with a pair of through holes that are connected to the bone at the lesion site and into which a suture is inserted, and an insertion portion that communicates with the pair of through holes; and
It includes an inner body that is rotatably inserted into the insertion portion and has a pair of through holes formed to form a communication hole into which each of the sutures is inserted.
According to the rotation of the inner body, the suture is compressed and fixed or released between the outer body and the inner body,
A catch is formed in one of the outer body and the inner body,
A plurality of engaging grooves are formed at intervals along the rotational direction of the inner body so that the inner body is fixed at a specific angle with respect to the outer body on the other of the outer body and the inner body, and the engaging projections are selectively fixed thereto.
The above through hole has a shape in which the cross-sectional area increases from the outer surface of the outer body to the inner surface of the outer body.
The above-mentioned communication hole has a shape in which the cross-sectional area decreases from the outer surface of the inner body toward the central axis of the inner body.
A locking projection is formed on one of the above insertion portion and the inner body,
A locking groove is formed in the other of the insertion portion and the inner body to be locked with the locking projection when the inner body is inserted into the insertion portion.
A simple suture anchor, wherein the locking projection and the locking groove are provided along the central axis direction of the insertion portion.
In the first paragraph,
A simple suture anchor, wherein when the through hole and the communication hole are misaligned on the same axis according to the rotation of the inner body, the suture is compressed and fixed, and when the through hole and the communication hole are arranged on the same axis, the compression and fixation of the suture is released.
delete In the first paragraph,
A simple suture anchor, wherein the diameter of the through hole formed on the inner surface of the outer body corresponds to the diameter of the communication hole formed on the outer surface of the inner body.
delete delete In the first paragraph,
A simple suture anchor in which the above through holes are formed in multiple numbers at intervals along the axial direction of the outer body.
In Article 7,
A simple suture anchor in which the above-mentioned communication holes are formed in multiple numbers at intervals along the axial direction of the inner body.
In the first paragraph,
A simple suture anchor, wherein the above insertion portion is formed along the axial direction of the outer body.

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