KR101626083B1

KR101626083B1 - Surgical anchor

Info

Publication number: KR101626083B1
Application number: KR1020140173806A
Authority: KR
Inventors: 박지수; 박명식
Original assignee: 전북대학교산학협력단
Priority date: 2014-12-05
Filing date: 2014-12-05
Publication date: 2016-05-31

Abstract

The present invention relates to a suture anchor. With respect to a suture anchor capable of being inserted in the bone so as to fix suture thread, the suture anchor comprises: a body; a penetration unit formed by penetrating to allow the suture thread to be threaded in one end of the body; a space unit arranged inside the body and compressed by external pressure; a compression unit wherein an outer wall, which is formed by the space unit, sticks to the bone by protruding outside when the outer wall is compressed; and an escape preventing unit formed to protrude from the outer circumference of the body so as to prevent an escape of the body from the bone.

Description

Surgical Anchor {Surgical Anchor}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a surgical anchor, and relates to a surgical anchor that can be easily fixed to a bone.

Generally, the anchor used for arthroscopy or general surgery is used to fix the joint soft tissue. Most anchors used for fixation of ligaments are formed by sewing a suture through one or two holes in a surgical bone fixing screw.

At this time, as described above, the anchor is pierced by a hole for threading the suture, and the suture is inserted into the anchor, and the ligament or muscle is sutured through the suture. After the ligament or muscle is fixed through the suture, the surgeon directly ties the suture and fixes it. In addition, such a direct fixation method may not be able to maintain a firm fixed state in a physician having a low proficiency, and it takes a long time to form a knot of a suture, which is a cause of low operability and increased operation time. (U.S. Patent Application Publication No. 2008-0058816)

In order to solve the above problem, a dedicated mechanism for automatically sewing a suture has been developed. However, such a knotting apparatus is bulky and heavy and inconvenient to use.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a surgical anchor that can be easily fixed to a bone.

In order to solve the above problems, the present invention provides an anchor for surgery, which is inserted into a bone to fix a suture, comprising: a body; A through-hole formed at one end of the body so as to penetrate the suture thread; A compression unit provided with a space portion to be compressed by an external pressure in the body and an outer wall formed by the space portion protruding outward when compressed and coming into close contact with the bone; And a separation preventing part formed to protrude from an outer circumferential surface of the body to prevent the body from being detached from the bone.

The compression section may be formed between the penetrating section and the departure-avoiding section.

The separation preventing portion may protrude spirally on the outer circumferential surface of the body or may protrude perpendicularly to the longitudinal direction of the body.

In order to solve the above-mentioned problems, the present invention provides an anchor for surgery, which is inserted into a bone to fix a suture, comprising: an anchor tip having a through portion for threading a suture; A body coupled to the anchor tip; A first departure prevention part having a thread protruding spirally on an outer peripheral surface of the body; And a second detachment prevention portion adjacent to the first detachment prevention portion and having a protruding ring protruding perpendicularly to the longitudinal direction of the body on an outer circumferential surface of the body.

The height of the thread and the height of the protruding ring may be the same for the surgical anchor.

A surgical anchor according to an embodiment of the present invention includes a compression portion, a separation preventing portion, and a double separation preventing portion, so that the surgical anchor can be doubly fixed to the bone.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an anchor for surgery and an insertion tool for inserting an anchor into a bone according to an embodiment of the present invention; FIG.
FIG. 2 is an exploded perspective view of the insertion tool shown in FIG. 1; FIG.
FIG. 3 is a perspective view showing a first embodiment of the surgical anchor shown in FIG. 1. FIG.
FIGS. 4A and 4B are cross-sectional views illustrating a method of interpolating a surgical anchor according to a first embodiment of the present invention. FIG.
FIG. 5 is a perspective view showing another example of the compression bonding portion of the surgical anchor shown in FIG. 1;
FIG. 6A is a perspective view showing another example of the compression section of the surgical anchor shown in FIG. 1, and FIG. 6B is a sectional view showing a section taken along the line II 'in FIG. 6A.
FIG. 7 is a perspective view showing a surgical anchor according to a second embodiment of the present invention; FIG.

Hereinafter, the description of the present invention with reference to the drawings is not limited to a specific embodiment, and various transformations can be applied and various embodiments can be made. It is to be understood that the following description covers all changes, equivalents, and alternatives falling within the spirit and scope of the present invention.

In the following description, the terms first, second, and the like are used to describe various components and are not limited to their own meaning, and are used only for the purpose of distinguishing one component from another component.

Like reference numerals used throughout the specification denote like elements.

As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It is also to be understood that the terms " comprising, "" comprising, "or" having ", and the like are intended to designate the presence of stated features, integers, And should not be construed to preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 7 attached hereto.

1 is a perspective view showing an anchor insertion device for inserting an anchor for surgery and a surgical anchor into a bone according to an embodiment of the present invention, and Fig. 2 is an exploded perspective view of the anchor insertion device shown in Fig. 1 .

Referring to FIGS. 1 and 2, the surgical anchor 100 is inserted into the bone by the anchor insertion device 200.

Specifically, the surgical anchor 100 is sewed with a suture thread at its end, and is fixed to the bone. The surgical anchor 100 is guided and inserted into the bone by the anchor insertion device 200. At this time, the suture threaded to the surgical anchor 100 can be used for fixation of ligaments or muscles, or for treatment.

As shown in FIGS. 3 to 6B, the surgical anchor 100 includes fixing means for fixing the bone to the bone such as a compression portion or a separation preventing portion, and is inserted and fixed to the bone.

The anchor insertion device 200 may include a sleeve 220, a pusher 210, and a handle 230.

The sleeve 220 has a hollow therein so that the pusher 210 is inserted. One side of the sleeve 220 is mounted on the handle 230. The sleeve 220 guides the surgical anchor 100 into the body. The sleeve 220 guides the surgical anchor 100 to the proximal portion, which is the entrance of the groove formed in the bone during surgery.

The pusher 210 allows the surgical anchor 100 guided by the sleeve 220 to be inserted into the bone. The pusher 210 is inserted into a hollow portion provided in the sleeve 220, and the end of the pusher 210 is closely contacted to press the surgical anchor 100.

The handle 230 fixes one end of the sleeve 220. The handle 230 may include a slide guide 232 for adjusting the length when the sleeve 220 is inserted into the body. The slide guide 232 provided in the handle 230 can prevent the sleeve 220 from being controlled by excessive force when the sleeve 220 is inserted into the body. In addition, the slide guide 232 can guide the sleeve 220 to advance the anchor 100 in one direction.

As described above, the surgical anchor according to the embodiment of the present invention can be easily inserted into the bone by the anchor insertion device, and the anchor can be firmly fixed to the bone after insertion.

Hereinafter, a surgical anchor according to an embodiment of the present invention will be described in more detail.

3 is a perspective view illustrating an anchor for surgery according to an embodiment of the present invention.

3, the surgical anchor according to the present invention may include a body 110, a penetration portion 120, a compression portion 130, and a departure prevention portion 140.

Specifically, the body 110 is a main structure of the anchor 100, and has a predetermined diameter and a predetermined length. For example, the body 110 is formed to have a length of about 12 mm, and the length of the body 110 may vary depending on the use site. The end of the body 110 has a pointed shape so that it can be inserted into the bone. The body 110 may be made of a titanium alloy, a polyethylene material, or a PEEK material.

The penetration part 120 is formed to penetrate the body 110 at the end side of the body 110. The perforations 120 are formed to thread the suture 20.

The compression unit 130 is deformed in shape by an external force and brought into close contact with the bone. For this, the compression unit 130 may include a space 132 to be compressed by external pressure in the body 110 and an outer wall 134 formed by the space 132.

The space portion 132 is formed by removing a part of the body 110 like the penetration portion 120 inside the body. The space 132 may be formed to pass through from the inside to the outside of the body 110 as shown in FIG.

When the body 110 is removed by the space portion 132, and the outer wall 134 is later compressed with the remaining portion, the outer wall 134 is bent outward and brought into close contact with the bone. The thickness of the outer wall 134 is preferably smaller than that of the outer wall of the space 132. A groove or the like may be formed on the outer wall 134 so that the outer wall 134 can be easily pushed outward when being pressed. For example, a groove may be formed on the outer side of the outer wall 134 so that the groove may be easily pushed toward the bone by the groove when compressed. The outer wall 134 may be formed with grooves staggered in the outer side and the inner side, Or the like.

5, a portion of the outer wall 134 does not protrude outward, but a plurality of (for example, three or more) outer walls 134 are formed on the inner surface of the outer wall on the inner space 132 side. Grooves can be formed. At this time, the groove is formed so as to be pushed outwardly when the outer wall 134 receives pressure, and is preferably formed in the shape of a circular ring.

Also, the crimping portion 130 may be formed only inside the body, as shown in FIG. As shown in FIGS. 6A and 6B, the crimping portion 130 may be formed only on the inner side rather than on the outer side of the body.

The separation preventing portion 140 is formed on the upper portion of the compression portion 130. The separation preventing portion 140 is formed to protrude from the outer circumferential surface of the body 110 so that the anchor 100 is not separated from the bone after being inserted into the bone. The release preventing portion 140 may be formed in the shape of a protruding ring, as shown in FIGS. In addition, the separation preventing portion 140 may be formed in a threaded shape. The separation preventing portion 140 formed in a thread shape is advantageous in that it is fixed when the anchor 100 for surgery is inserted into the bone without being easily detached after being inserted.

As described above, the separation preventing part 140 is formed protruding from the outer circumferential surface of the body 110 so that the anchor 100 is not separated from the bone after being inserted into the bone.

4A and 4B are cross-sectional views illustrating a method of interpolating a surgical anchor according to the first embodiment of the present invention.

As shown in FIG. 4A, the surgical anchor 100 is inserted into a groove into which a surgical anchor 100 is inserted into a bone. At this time, the separation preventing part 140 of the surgical anchor is not completely inserted into the outer side of the groove formed in the bone, and a part of the separation preventing part 140 may be located outside the bone.

Then, as shown in FIG. 4B, the surgical anchor 100 is squeezed by using the anchor insertion device 200. As shown in FIG. 4B, when the surgical anchor 100 is squeezed, the outer wall 134 of the compression unit 130 protrudes toward the bone and is closely contacted with the bone, thereby firmly fixing the surgical anchor 100 to the bone.

As described above, the surgical anchor according to the first embodiment of the present invention is formed with the compression portion, so that the surgical anchor can be firmly fixed to the bone during compression. Therefore, there is an effect that the surgical anchor can be fixed to the bone in a double manner.

7 is a perspective view illustrating an anchor for surgery according to a second embodiment of the present invention.

Referring to FIG. 7, the surgical anchor 300 according to the second embodiment of the present invention includes an anchor tip 310, a body 330, a first departure prevention portion 340 and a second departure prevention portion 350, . &Lt; / RTI >

Specifically, the anchor tip 310 may be a small tip separated from the body 330, a tip formed in a conical or pointed shape, and a through portion 320 through which a suture thread is inserted.

A front end of the body 330 may be coupled with the anchor tip 310 and a rear end may be formed with a through-hole into which the pusher 210 of the anchor insertion device 200 shown in FIGS. 1 and 2 is inserted.

A first departure preventing portion 340 and a second departure preventing portion 350 are formed on the outer circumferential surface of the body 330.

The first separation preventing portion 340 is formed to have a thread projecting spirally on the outer peripheral surface of the body 330. The first separation preventing portion 340 may be formed on the rear end side of the body 330.

The second separation preventing portion 350 may be formed to have a circular ring protruding perpendicularly to the outer peripheral surface of the body 330. The circular ring of the second departure prevention part 350 may be formed to protrude in a direction perpendicular to the longitudinal direction of the body 330. The second departure prevention part 350 may be formed adjacent to the first departure prevention part 340 and may be formed on the front end side of the body 330.

The first departure prevention part 340 and the second departure prevention part 350 may be formed to be shifted from each other. For example, the first departure prevention portion 340 may be formed on the front end side of the body 330, and the second departure prevention portion 350 may be formed on the rear end side of the body 330.

As described above, the anchor 300 for a surgical operation according to the second embodiment of the present invention can be formed of a double-piece and securely fixed to the bone.

100, 300: surgical anchor
110, 330: body
120, 320:
130:
132:
134: outer wall
140:
200: anchor insertion device
210: pusher
220: Sleeve
230: Handle
310: Anchor tip
340: first departure prevention portion
350: second departure prevention portion

Claims

A surgical anchor inserted into a bone to fix a suture,
Body;
A through-hole formed at one end of the body so as to penetrate the suture thread;
A compression unit provided with a space portion to be compressed by an external pressure in the body and an outer wall formed by the space portion protruding outward when compressed and coming into close contact with the bone; And
And a separation preventing part formed to protrude from an outer circumferential surface of the body to prevent the body from being detached from the bone,
The compression unit
Wherein the anchor is formed between the penetrating portion and the separation preventing portion.

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The method according to claim 1,
Wherein the separation preventing portion is formed to protrude spirally on the outer circumferential surface of the body or to protrude perpendicularly to the longitudinal direction of the body.

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