Soft tissue fixing anchor and soft tissue fixing method using the same

Abstract

A soft tissue fixing anchor includes: an anchor member which is inserted to the bone cavity interior and prevented from moving in the bone cavity interior by the artificial joint when the artificial joint is implanted; and a suture of which one end portion is fixed to the anchor member and the other end portion is exposed to a bone cavity exterior of the bone so as to be sutured to the soft tissue.

Claims

1. A soft tissue fixing method, comprising: providing a soft tissue fixing anchor comprising: an anchor member which is configured to be inserted to a bone cavity interior and prevented from moving in the bone cavity interior by an artificial joint when the artificial joint is implanted; and a suture of which one end portion is configured to be fixed to the anchor member and the other end portion is configured to be exposed to a bone cavity exterior of the bone so as to be sutured to soft tissue; fixing the one end portion of the suture to the anchor member; inserting the anchor member to the bone cavity interior; implanting the artificial joint into the bone cavity interior while the anchor member is inserted to the bone cavity interior and the other end portion of the suture is placed at the bone cavity exterior; and suturing the other end portion of the suture to the soft tissue.

2. A soft tissue fixing method, comprising: providing a soft tissue fixing anchor comprising: an anchor member which is configured to be inserted to a bone cavity interior and prevented from moving in the bone cavity interior by an artificial joint when the artificial joint is implanted; and a suture of which one end portion is configured to be fixed to the anchor member and the other end portion is configured to be exposed to a bone cavity exterior of the bone so as to be sutured to soft tissue; wherein the anchor member comprises a plate-shaped body part and a fixing part provided in the body part to affix one end portion of the suture; fixing the one end portion of the suture to the anchor member; inserting the anchor member to the bone cavity interior; implanting the artificial joint into the bone cavity interior while the anchor member is inserted to the bone cavity interior and the other end portion of the suture is placed at the bone cavity exterior; and suturing the other end portion of the suture to the soft tissue.

Description

DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a diagram schematically illustrating a state where a soft tissue is fixed to a bone by an existing soft tissue fixing anchor.

(2) FIG. 2 is a diagram schematically illustrating a soft tissue fixing anchor according to an embodiment of the present invention.

(3) FIG. 3 is a diagram schematically illustrating a state where a soft tissue is fixed to a bone by the soft tissue fixing anchor of FIG. 2.

(4) FIG. 4 is a flowchart schematically illustrating a soft tissue fixing method according to another embodiment of the present invention.

MODES OF THE INVENTION

(5) Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so as to be easily implemented by those skilled in the art to which the present invention pertains. However, the present invention may be embodied in many different forms and is not limited to embodiments described herein.

(6) FIG. 2 is a diagram schematically illustrating a soft tissue fixing anchor according to an embodiment of the present invention and FIG. 3 is a diagram schematically illustrating a state where a soft tissue is fixed to a bone by the soft tissue fixing anchor of FIG. 2.

(7) As illustrated in FIGS. 2 and 3, a soft tissue fixing anchor 100 according to an embodiment of the present invention includes an anchor member 110 and a suture 120, as a soft tissue fixing anchor used when an artificial joint A10 (FIG. 3) is implanted into a bone cavity interior G10 thereof by cutting an end portion of a bone H1 and removing a bone cavity tissue of the remaining bone H1. Hereinafter, respective components will be described in detail with reference to FIGS. 2 to 3.

(8) The anchor member 110 is a component for fixing the suture 120 to the bone cavity interior G10. Such an anchor member 110 may be inserted to the bone cavity interior G10 as illustrated in FIGS. 2 and 3. Accordingly, when the artificial member A10 is implanted into the bone cavity interior G10, the anchor member 110 may be prevented from moving in the bone cavity interior G10 by the artificial joint A10.

(9) On the other hand, in order to fix the artificial joint to the bone cavity interior, there are a non-cement type artificial joint implantation technique (although not illustrated, in this case, an outer wall of the artificial joint is fixed to the bone cavity inner wall by friction) of directly implanting and fixing the artificial joint into the bone cavity interior without a bone cement and a cement type artificial joint implantation technique (see FIG. 3) of first injecting the bone cement to the bone cavity interior to implant and fix the artificial joint. For example, when the anchor member 110 is applied to the non-cement type implantation technique, although not illustrated, the anchor member may serve to fix the suture. As another example, when being applied to the cement type implantation technique, as illustrated in FIGS. 2 and 3, the anchor member 110 may serve to fix the suture 120 and prevent the injected bone cement 130 from being permeated into a porous bone cavity tissue H12 below.

(10) Particularly, when being applied to the cement type implantation technique, as illustrated in FIGS. 2 and 3, the anchor member 110 may be inserted to the bone cavity interior G10 and fixed to the bone cavity interior G10 by the bone cement 130 injected to the bone cavity interior G10. Accordingly, the suture 120 to be described below may be first fixed by the anchor member 110 and second fixed by the bone cement 130.

(11) For example, as illustrated in FIGS. 2 and 3, the anchor member 110 may include a body part 111 and a fixing part 112. The body part 111 may have a plate shape, and when being applied to the cement type implantation technique, the body part 111 may block the bottom surface of the bone cavity interior G10 to prevent the bone cement 130 from moving to the porous bone cavity tissue H12 below. The fixing part 112 is provided in the body part 111 and may fix one end portion of the suture 120.

(12) Further, the body part 111 may have a plate shape and may be made of a resin material. Accordingly, the operator may easily cut the body part 111 of the anchor member 110 with scissors, etc. to fit the size of the bone cavity interior G10, so that the body part 111 may be used universally regardless of the thickness of the bone, such as being used in the forearm with a small bone size as well as the femur with a large bone size. For reference, the bone H1 illustrated in FIGS. 2 and 3 shows the humerus having a middle size of the femur and the forearm.

(13) Furthermore, the fixing part 112 may include a fixing protrusion 112a and a through hole 112b, as illustrated in FIGS. 2 and 3. The fixing protrusion 112a may protrude from an upper end of the body part 111 and the suture 120 may be fixed to the fixing protrusion 112a though the through hole 112b. Accordingly, when being applied to the cement type implantation technique, the suture 120 is fixed to the fixing protrusion 112a though the through hole 112b by drilling a hole in the fixing protrusion 112a of the fixing part 112 without drilling a hole in the body part 111 requiring the sealing of the bone cement 130, thereby maintaining a sealing effect of the body part 111 of the anchor member 110 even while fixing the suture 120.

(14) The suture 120 is a component for connecting a soft tissue R1 and the anchor member 110. As illustrated in FIGS. 2 and 3, one end portion of the suture 120 may be fixed to the anchor member 110 and the other end portion of the suture 120 may be exposed to a bone cavity exterior to be sutured to the soft tissue R1.

(15) In particular, one end portion of the suture 120 may be fixed to the anchor member 110 before the anchor member 110 is inserted to the bone cavity interior G10, and the other end portion of the suture 120 may be sutured to the soft tissue R1 while the anchor member 110 is inserted to the bone cavity interior G10. On the other hand, when being applied to the cement type implantation technique, the other end portion of the suture 120 may be sutured to the soft tissue R1 after the bone cement 130 injected into the bone cavity interior G10 is hardened.

(16) Accordingly, the suture 120 may be first fixed by the anchor member 110, and second fixed between the bone cavity inner wall of the bone H1 and the artificial joint A10, and furthermore, when being applied to the cement type implantation technique, the suture 120 may be third fixed by the bone cement 130. Ultimately, the suture 120 is firmly fixed through multiple stages to be prevented from being released or removed from the anchor member 110.

(17) Hereinafter, a soft tissue fixing member according to another embodiment of the present invention will be described with reference to FIGS. 2 to 4.

(18) FIG. 4 is a flowchart schematically illustrating a soft tissue fixing method according to another embodiment of the present invention.

(19) In the soft tissue fixing method according to another embodiment of the present invention, as illustrated in FIG. 4, first, one end portion of the suture 120 is fixed to the anchor member 110 (S110). Then, the anchor member 110 is inserted to the bone cavity interior G10 (S120).

(20) Thereafter, while the anchor member 110 is inserted to the bone cavity interior G10 and the other end portion of the suture 120 is placed in the bone cavity exterior, the artificial joint A10 is implanted into the bone cavity interior G10 (S130). Then, the other end portion of the suture 120 is sutured to the soft tissue R1 (S140). At this time, the suturing may be performed while the soft tissue R1 is sufficiently pulled.

(21) Further, when being applied to the cement type implantation technique, the above-described implanting process (S130) may include injecting the bone cement 130 while the anchor member 110 is inserted to the bone cavity interior G10 and the other end portion of the suture 120 is placed in the bone cavity exterior and implanting the artificial joint A10 into the bone cavity interior G10 to which the bone cement 130 is injected.

(22) Further, the above-described suturing process (S140) may be performed after the bone cement 130 is hardened.

(23) While the preferred embodiments of the present invention have been described in detail, the scope of the present invention is not limited thereto and also covers various modifications and changes of those skilled in the art using a basic concept of the present invention which is defined in appended claims.

(24) TABLE-US-00001 [Explanation of Reference Numerals and Symbols] 100: Soft tissue fixing anchor 110: Anchor member 111: Body part 112: Fixing part 112a: Fixing protrusion 112b: Through hole 120: Suture 130: Bone cement H1: Bone (humerus) S1: Bone (scapula) R1: Soft tissue (rotator cuff) G10: Bone cavity interior A10: Artificial joint