KR101671354B1 - Anchor used for ligament surgery - Google Patents

Abstract

According to the present invention, disclosed is an anchor for ligament surgery. The purpose of the present invention is to provide an anchor for ligament surgery which facilitates insertion of the anchor for ligament surgery while reducing man-hour of the surgery. In an anchor for ligament surgery applied to arthroscopic surgery, an anchor for ligament surgery according to the present invention comprises: a bottom part in which a first through hole is formed such that the first through hole vertically passes through the bottom part; a main body part which is positioned at an upper side of the bottom part, and through which a second through hole communicating with the first through hole vertically passes; and a top part which is positioned at an upper side of the main body part, and through which a third through hole communicating with the second through hole vertically passes, wherein an operation drill is capable of being mounted on or separated from the first, second and third through holes.

Description

{ANCHOR USED FOR LIGAMENT SURGERY}

The present invention relates to an anchor for ligament surgery.

Ligament is a strong fibrous tissue that connects the bones and bones, and can be damaged in the form of sprains, twists, tears or breaks because it is mainly located in the joints and keeps the joints stable or suggests movement of the joints.

The dislocation of the ligaments occurs mainly at the site where the ligaments and bones are connected. To restore the injured ligaments, the ligaments must be fixed to the bones. The most common way to fix the ligaments to the bones is to use sutures and anchors. According to restoration of the ligament by suture and anchor, the anchor is fixed to the bone, and the suture attached to the anchor is tied to the ligament to fix the ligament to the bone.

In order to insert such an anchor into the bone, conventionally, a guide drill for inserting the anchor into the bone was formed using a surgical drill, and then an anchor was inserted into the guide hole. According to this, there is a problem that it is difficult to find the guide hole when the anchor is inserted, after the guide drill is formed with the drill for surgery, the drill is removed, and the anchor is inserted.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an anchor for ligament surgery, which can facilitate insertion of an anchor for ligament surgery while reducing the number of operations.

In order to accomplish the above object, the anchor for ligament surgery according to the first aspect of the present invention is an anchor for ligament surgery applied to arthroscopic surgery, wherein a first through-hole penetrated vertically is formed A lower end portion; A main body portion positioned above the lower end portion and having a second through hole communicating with the first through hole vertically penetrated therethrough; And an upper portion positioned above the main body portion and having a third through-hole communicating with the second through-hole vertically through the first through-hole, the second through-hole, and the third through- The drill can be mounted and detachable.

According to an embodiment of the present invention, a bone substitute can be accommodated in the first through-hole and the second through-hole.

According to an embodiment of the present invention, the body portion is formed in a direction perpendicular to the second through-hole so that a bone substitute accommodated in the second through-hole is exposed to the outside, and the inside of the second through- And an exposure hole communicating the outside of the portion.

According to an embodiment of the present invention, a screw thread may be formed on the inner periphery of the first through-hole.

According to an embodiment of the present invention, it is preferable that the surgical drill further comprises: the surgical drill, when mounted on the first through hole, the second through hole, and the third through hole, A screw thread engaging with a screw thread of the first through hole may be formed in an outer circumferential portion which is in contact with the inner circumference.

According to an embodiment of the present invention, the material constituting the lower end portion, the main body portion, and the upper end portion may include a peak (PEEK).

According to an embodiment of the present invention, the diameter of the upper end portion may be larger than the diameter of the lower end portion.

According to an embodiment of the present invention, the upper end portion includes two shooter holes formed in a direction perpendicular to the third through-hole and facing each other, and the two shooter holes are provided with a suture (i.e., Can pass through.

According to an embodiment of the present invention, each of the height and width of the shooter hole is a preset length, and the predetermined length may be a length allowing the shoe to flow in the shooter hole.

According to an embodiment of the present invention, the muscle may be a rotator cuff.

According to the above-mentioned object of the present invention, it is possible to mount and separate the surgical drill in the first through hole, the second through hole and the third through hole, , Anchors for ligament surgery that can be easily inserted into the bones and reduce the number of operations can be implemented. Particularly, since the present invention does not require a process of finding a guide hole as in the prior art, the ease of operation can be remarkably improved.

Further, the present invention includes the first through-hole and the second through-hole in which the bone substitute is accommodated, so that even after the surgical drill is removed from the first through-hole, the second through-hole and the third through- It is possible to realize an anchor for ligament surgery in which rigidity is secured with respect to an external force exerted by the ligament.

Further, according to the present invention, a bone substitute accommodated in the first through-hole and the second through-hole through the exposure hole can make the surrounding bones unite and can be combined with the surrounding bones. Accordingly, anchors for ligament surgery with improved bone-to-bone connection can be realized.

Further, according to the present invention, a screw anchor is formed on the inner periphery of the first through-hole, and a surgical drill engaged with the screw hole is provided, thereby realizing an anchor for ligament surgery that is easy to fasten and unfasten with a drill for surgery.

In addition, the present invention can provide a biocompatible anchor for ligament surgery by preventing the bone from dissolving without inducing metallicity by forming the lower end portion, the main body portion, and the upper end portion of a material including peaks.

In addition, according to the present invention, an anchor for ligament surgery having an upper portion larger than the width of the lower end portion can be realized, which is pressed into the bone to increase the coupling force with the bone.

Further, according to the present invention, by setting the width and the height of the shooter hole through which the shaker passes, the shoe can be made to flow so that the shooter can flow when the shooter and the ligament are fastened to each other, have.

FIG. 1 is a schematic perspective view of an ankle for ankle surgery according to an embodiment of the present invention, viewed obliquely from above.
FIG. 2 is a schematic cross-sectional view of an anchor for ligament surgery according to an embodiment of the present invention, which is equipped with a surgical drill, along the line III-III of FIG.
3 is a schematic cross-sectional view of an ankle for ligament surgery according to one embodiment of the present invention mounted on a bone.
4 is a schematic side view of an anchor for ligament surgery according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

In the entire specification of the present invention, when a part is referred to as being "connected" to another part, it is not necessarily the case that it is "directly connected", but also "electrically connected" .

In the entire specification of the present invention, when a member is located on another member, this includes not only a case where a member is in contact with another member but also a case where another member exists between the two members.

Throughout the specification of the present invention, when a part is referred to as "including " an element, it is understood that it may include other elements as well, without excluding other elements unless specifically stated otherwise. The terms "about "," substantially ", etc. used to the extent that they are used throughout the present disclosure are used in their numerical value or in close proximity to their numerical values when the manufacturing and material tolerances inherent in the stated meanings are presented, Accurate or absolute numbers are used to prevent unauthorized exploitation by unauthorized intruders of the referenced disclosure. The word " step (or step) "or" step "used in the specification of the present invention does not mean" step for.

For reference, the terms (upper, upper, lower, lower, etc.) related to directions and positions in the description of the embodiments of the present invention are set based on the arrangement state of each structure shown in the drawings. For example, as shown in Figs. 1 to 4, when the overall direction toward 12 o'clock is the upper side, the overall direction is toward the 12 o'clock, the upper side toward the overall 6 o'clock is the lower side, And the like.

The present invention relates to an anchor for ligament surgery.

Hereinafter, an anchor for ligament surgery according to an embodiment of the present invention (hereinafter, referred to as 'anchor for ligament surgery') 1 will be described.

FIG. 1 is a schematic perspective view of an ankle of the present ligament surgery viewed from above, FIG. 2 is a schematic cross-sectional view of the ligament anchor for a ligament with a surgical drill cut along the line III-III of FIG. 1, FIG. 4 is a schematic side view of an anchor for ligament surgery of the present invention. FIG.

The anchor for this ligament (1) is applied to arthroscopic surgery. Here, arthroscopic surgery refers to surgery using a tool called arthroscopy. Examples include surgery on a ruptured rotator cuff, surgery on a cartilaginous bone, surgery on a cruciate ligament, and articular cartilage surgery. . The anchor for this ligament (1) can be applied to such arthroscopic surgery, and it can be applied especially to arthroscopic surgery related to the rotator cuff.

Hereinafter, an anchor for the ligament surgical operation will be described in detail as an example in which the ligament anchor for ligament surgery is applied to ligament restoration surgery. In other words, in the following description, the ligament is restored due to the suture attached to the ankle of the present ligament being ligated to the ligament after the anchor for ligament surgery is fixed to the bone, do.

1 and 2, the ankle for ankle surgery 1 includes a lower end portion 11 having a first through hole 111 which is vertically penetrated and a lower end portion 11 located above the lower end portion 11, A main body portion 13 which is vertically penetrated through a second through hole 131 communicating with the through hole 111 and a third through hole 113 which is located on the upper side of the main body portion 13 and communicates with the second through hole 113, (151) has an upper portion (15) which is vertically penetrated.

Referring to FIG. 3, the ankle for ankle surgery 1 may be mounted on the bones 91 and 92. Mounting of the ligament anchor 1 to the bones 91 and 92 can be carried out as follows.

Referring to FIG. 2, a surgical drill 5 is attached to and detached from the first through hole 111, the second through hole 131, and the third through hole 151. Here, the surgical drill includes a drill, a drill head, and the like, the free end of which is a cusp.

2, the surgical drill 5 is inserted into the skin, bone and the like of the human body in a state where the surgical drill 5 is mounted on the ankle 1 for ligament surgery, The ankle 1 for ligament surgery combined with the surgical drill 5 can be inserted into the bone. The operation drill 5 can be separated from the ankle 1 for ligament surgery when the ankle 1 for the ligament surgical operation is located at a place where the ligament is to be mounted inside the bones 91 and 92. [

Conventionally, a surgical drill was used to form a guide hole for insertion of an anchor for ligament surgery into a bone, and then an anchor for ligament surgery was inserted into the guide hole. According to this, there is a problem that it is difficult to find the guide hole when the anchor for ligament surgery is inserted, after the guide hole is formed by the drill for surgery, the drill for surgery is removed, and the anchor for ligament surgery is inserted.

However, according to the present invention, since the surgical drill 5 is inserted into the bones 91 and 92 in a state of being coupled with the ankle 1 for the ligament surgery, the number of operations can be reduced, The surgical anchor 1 can be easily inserted into the bones 91 and 92. [

1 and 2, screw threads may be formed on the inner periphery of the first through hole 111 of the lower end portion 11. [

2, the surgical drill 5, which can be attached to and detached from the first through hole 111, the second through hole 131, and the third through hole 151, has a first through hole 111 A screw thread engaging with the screw thread of the first through hole 111 is formed in the outer circumferential portion of the first through hole 111, which is in contact with the inner circumference of the first through hole 111 when the second through hole 131 and the third through hole 151 are fitted, .

Due to the engagement of the screw thread of the first through hole 111 and the screw thread of the drill 5 for surgical operation, the drill 5 for surgery can be easily combined with the ankle 1 for ligament surgery, Can be released.

The drill 5 for forming a screw thread engaging with the screw thread of the first through hole 111 may be included as one set in the ankle 1 for ligament surgery.

1 to 4, in the present anchor for ligament surgery 1, the width of the upper end portion 15 may be larger than the width of the lower end portion 11. This means that the width of the upper end portion 15 is larger than the maximum width of the lower end portion 11. Accordingly, the ankle 1 can be press fit when inserted into the bones 91 and 92, and the binding force between the ankle 1 and the bones 91 and 92 Can be increased.

1 and 3, in the present anchor for ankle surgery 1, the upper end 15 may include a shooter hole 153. As shown in FIG. 1, two shooter holes 153 may be formed in a direction perpendicular to the third through-hole 151. These two shooter holes 153 can be opposed to each other.

As shown in FIG. 3, a suture 7 can penetrate through the shooter hole 153.

The shooter 7 passes through the shooter hole 153 and can be fastened to the shooter hole 153. In this way, the shooter 7 can be combined with the ankle 1 for ligament surgery.

Illustratively, the ligament surgical anchor 1 can be inserted into the bones 91, 92 by the surgical drill 5 while the shooter 7 is fastened to the spot hole 153. After the attachment of the ligament anchor 1 to the bones 91 and 92 is completed, the shooter 7 can be tied to the injured ligament. As a result, the ligature bound to the shooter 7 can be fixed to the bones 91, 92.

In addition, the height and width of the shooter hole 153 may be predetermined lengths. The preset distance of the height (see Fig. 3, the length in the direction of 12 o'clock 6 o'clock) and the width (see Fig. 3, the length in the direction of 3 o'clock and 9 o'clock) 7, the height and width of the shooter hole 153 may be larger than the diameter of the shooter 7, as shown in FIG. 3, for example.

If the height and width of the shooter hole 153 are the same as the height and width of the shooter 7, the shooter 7 in the shooter hole 153 will have the same height as the shooter hole 153 in the shooter hole 153, It can not flow in each of the width directions. However, the present shooter hole 153 has a height and a width larger than the diameter of the shooter 7, so that the shooter 7 can be made to flow in the shooter hole 153. Accordingly, when the shooter 7 is tied to the ligament of the shooter 7, the flow of the shooter 7 is facilitated, and binding between the shooter and the ligament can be facilitated.

In addition, the material constituting the ankle 1 for the ligament surgical operation includes peaks (PEEK, Polyetherethereketone). In other words, the material constituting the lower end portion 11, the main body portion 13, and the upper end portion 15 includes peaks. The peak is a thermoplastic resin which is resistant to high temperature, shock and abrasion and is a new material which can be used in living body. Since such a peak is a technique obvious to a person skilled in the art, detailed description is omitted.

Conventional anchors for ligament surgery are made of titanium (Ti) material to ensure rigidity. As a result, conventional anchors for ligament surgery have caused metal degeneration and osteolysis. However, since the ankle 1 for a ligament for surgery is made of a material including peaks, it is possible to prevent the phenomenon that the bone is dissolved without inducing metallosis, and biocompatibility can be ensured.

Referring to FIG. 3, a bone substitute 8 may be accommodated in the first through hole 111 and the second through hole 131.

The bone substitute 8 is inserted into the bones 91 and 92 of the ligament anchor 1 after the surgical drill 5 is removed from the ligament anchor 1, Hole 111 and the second through-hole 131, respectively. The bone substitute 8 can secure the rigidity of the ligament anchor for ligament surgery 1 by filling the inside of the ligament anchor for ligament surgery 1.

If the bone substitute 8 is not accommodated in the first through hole 111 and the second through hole 131, after removal of the surgical drill 5, The dragon anchor 1 can be damaged by the external force exerted by the bone to be restored. However, after the surgical drill 5 is removed, the ankle 1 for a ligament for surgical operation receives a bone substitute in the first through hole 111 and the second through hole 131, Can be secured. It is preferable that the bone substitute 8 is also accommodated in the third through hole 151 if necessary in order to secure the rigidity of the upper end 15 of the ligature anchor 1. [

1 and 2, the main body part 13 is formed so as to extend in a direction perpendicular to the second through hole 131 so that a bone substitute accommodated in the second through hole 131 is exposed to the outside And an exposure hole 133 formed in the second through hole 131 and communicating the inside and the outside of the second through hole 131.

The bone substitute 8 accommodated in the ankle 1 can be coupled with the bones 91 and 92 around the ankle 1 through the exposure hole 133. [ As a result, the anchors 1 can be easily attached to the bone.

Illustratively, the bone substitute 8 may be a hydroxyapatite. Hydroxyapatite is the same ceramic as the main component of human bone, and is used as an artificial bone, a root, and the like. Further, the biocompatibility is good and integration with the tissue is possible. It also has the advantage of having high bone syn- thesis. The ankle for ankle surgery 1 includes the hydroxyapatite with the bone substitute 8 to improve the bondability between the ankle 1 and the bone 91 and 92 and the bone 91 and 92, Can be improved.

However, the kind of the bone substitute 8 is not limited thereto, and the bone substitute may include at least one of autogenous bone, heterogeneous bone, allogeneic bone, and the like. In addition, artificial bones other than hydroxyapatite may be included as bone substitute 8.

In the present anchor for ankle surgery 1, a threaded portion 135 may be formed on the outer periphery of the main body portion 13. [ The threaded portion 135 can be screwed to the bones 91 and 92 around the ankle 1 for ligament surgery. Thus, the coupling between the ankle 1 and the bone 91, 92 can be improved.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

1: Anchors for ligament surgery 11: Lower end
111: first through hole 113: screw thread
13: main body part 131: second through hole
133: Exposure hole 135:
15: upper end 151: third through hole
153: Shooter Hall 5: Surgical Drill
7: Shooter 8: Bone Replacement
91, 92: bone

Claims (8)

In anchors for ligament surgery applied to arthroscopic surgery,
A lower end portion having a first through hole vertically penetrated therethrough;
A main body portion positioned above the lower end portion and having a second through hole communicating with the first through hole vertically penetrated therethrough; And
And an upper end portion located above the main body portion and having a third through-hole communicating with the second through-hole vertically penetrated therethrough,
Wherein the first through hole, the second through hole, and the third through hole are attachable and detachable to and from a surgical drill having a free end portion attached thereto. The method according to claim 1,
Wherein a bone substitute is accommodated in the first through-hole and the second through-hole. 3. The method of claim 2,
The main body includes an exposure hole formed in a direction perpendicular to the second through-hole so that a bone substitute accommodated in the second through-hole is exposed to the outside, and communicates the inside of the second through-hole and the outside of the main body Anchors for ligament surgery. The method according to claim 1,
And an inner thread of the first through-hole is threaded. 5. The method of claim 4,
Further comprising the surgical drill,
The surgical drill includes:
Wherein a screw thread is formed at an outer circumferential portion of the first through hole, which is in contact with the inner circumferential surface of the first through hole when the first through hole, the second through hole, and the third through hole are engaged with the screw thread of the first through hole, Dragon anchor. The method according to claim 1,
Wherein the diameter of the upper end is greater than the diameter of the lower end. The method according to claim 1,
Wherein the upper end portion includes two shooter holes formed in a direction perpendicular to the third through-hole and facing each other,
Wherein an anchor for a ligament surgical operation is provided with a suture penetrating through the two shooter holes. 8. The method of claim 7,
Each of the height and width of the shooter hole is a predetermined length,
Wherein the predetermined length is a length that allows the shoe to flow within the shoe hole.

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