KR102295632B1 - Connector to induce Biotissue - Google Patents

Abstract

The present invention provides a fixing cap that is coupled to the corresponding part to which the biological tissue is to be fixed among the bone body in which a fixing part to which the Achilles tendon or plantar muscle is fixed, which is a living tissue, is formed on one side at the corresponding site, and the fixing cap extends toward the living tissue It is formed and includes a connection part for receiving and entering the living tissue inside through the opening of the end, and fastening means for fixing the biological tissue to the connection part by being fastened to the biological tissue accommodated in the connection part, the bone ( Bone) By forming a fixing part to which the living tissue is to be fixed on the body, and putting a fixing cap connected to the biological tissue on the bone body in which the fixing part is formed, the biological tissue is easily and firmly fixed to the bone body, and in the fixing cap As the tensile force per unit area is reduced by increasing the contact area with the living tissue with the extended connecting part, damage to the living tissue due to tensile stress can be avoided, and the living tissue is brought into close contact with the bone body by the fixing cap and the connecting part. Provided is a connector that promotes and induces engraftment of living tissue cells and induces the engraftment of living tissue with excellent fixation of the living tissue.

Description

Connector to induce Biotissue

The present invention relates to a connector for inducing the engraftment of living tissue to bone (bone), and more particularly, the chilles tendon or plantar muscle, which is the living tissue, is firmly fixed to the bone body, and biologically safely engraftment of living tissue cells. It is directed to a connector that induces engraftment of living tissue with excellent fixation power.

In general, 3D printing technology is expected to provide new treatments for many areas that cannot be solved by current medical technology. Therefore, the technique of removing the damaged bone and replacing it with a replica is in the spotlight as a very innovative treatment because it can avoid joint union or amputation.

And in the case of avascular necrosis of the talus, fusion is being performed in which the necrotic bone is removed, the allogeneic bone is transplanted, and the bone is fixed together with the upper and lower bones. .

Therefore, 3D printing technology to duplicate and replace the talus has already been introduced and successfully applied to the human body. .

A ligament is attached between the bones to stabilize the joint, and it is attached in the form of a tendon (tendon) between the muscle and bone to transmit the force induced by the muscle to the bone to cause movement. ) is attached in place and does not relax the muscles, the muscles contract naturally, causing pain and contracture, and loss of function. However, since this suture method depends only on the strength of the suture, the tensile force is weak and it is vulnerable to fatigue, so it is difficult to expect a proper function.

In addition, the direct fixation method using such a suture may not be able to maintain a solid fixation state in the case of an unskilled surgeon, and it takes a long time to form a knot of the suture, which is a cause of low operation convenience and an increase in operation time. .

To address the above problem, Korean Patent Publication No. 10-2016-0053389 (2016.05.13) provided a fixing device for bonding tendons and ligaments to bones, the fixing device being formed at both ends of the head and the head. at least one of a tendon and a ligament and a leg portion penetrating the compact bone of the bone, the leg portion penetrating at least one of the tendon and ligament and the compact bone of the bone, and the head portion presses at least one of the tendon and ligament and fixed.

However, since the tendon (tendon) or ligament tissue, which is a living tissue, is a living tissue, but the bone replica is an object made of metal (or composite synthetic resin), it was difficult to induce the living tissue to engraft or connect strongly to the metal object.

Therefore, it is necessary to develop a technology for inducing the strong engraftment of tendons (tendons) or ligaments, which are living tissues, into the bone body.

The present invention forms a fixing part to which the Achilles tendon or plantar muscle, which is a biological tissue, is to be fixed to a bone (bone) body, and puts a fixing cap connected to the biological tissue on the bone body in which the fixing part is formed, and the biological tissue is convenient to the bone body While being firmly fixed, the contact area with the living tissue is increased with the connecting part extended from the fixing cap, and as the tensile force per unit area is reduced, damage to the living tissue due to the tensile stress can be avoided, and by the fixing cap and the connecting part An object of the present invention is to provide a connector that promotes and induces engraftment of living tissue cells as the living tissue is brought into close contact with the bone body, thereby inducing the engraftment of the living tissue with excellent fixation of the living tissue.

The connector for inducing engraftment of living tissue according to the present invention is a connector for connecting the Achilles tendon or plantar muscle, which is a living tissue, to a bone body manufactured by 3D printing according to the shape of the bone to be transplanted, and is made in the form of a mesh, the bone body A fixing cap formed as a pocket so as to be covered and caught on the part to which the biological tissue is to be fixed, and a mesh shape, extending from the fixing cap toward the biological tissue, and a connecting part that faces the end of the biological tissue, and the It is fastened to the biological tissue accommodated in the connection part, and includes a fastening means for fixing the biological tissue to the connection part.

At this time, the connection part according to the present invention may be conducted by allowing the biological tissue to enter the inside through the opening at the end, and to surround the biological tissue for an interview, or the connection part may be embedded between the inside of the biological tissue for an interview.

delete

In addition, the bone body according to the present invention is formed around the portion to which the fixing cap is coupled, it may include a fixing means for fixing the end of the fixing cap to the bone body.

In addition, a coupling groove is formed in the corresponding portion of the bone body to which the biological tissue is fixed according to the present invention, and a coupling portion coupled to the coupling groove may be formed in the fixing cap.

delete

The connector for inducing engraftment of living tissue according to the present invention has the following effects.

First, by forming a fixing part to which the Achilles tendon or plantar muscle, which is a biological tissue, is to be fixed to the bone (bone) body, and putting a fixing cap connected to the biological tissue on the bone body in which the fixing part is formed, the biological tissue is conveniently attached to the bone body It can be fixed firmly.

Second, as the tensile force per unit area is reduced by increasing the contact area with the living tissue with the connecting portion extending from the fixing cap, damage to the living tissue due to the tensile stress can be avoided.

Third, as the living tissue is brought into close contact with the bone body by the fixing cap and the connecting part, the engraftment of the living tissue cells is promoted and induced, so that the fixation of the living tissue has an excellent effect.

1 is an exemplary view showing a connector for inducing engraftment of a living tissue according to an embodiment of the present invention.
Figure 2 is an exemplary view showing a state in which the Achilles tendon is fixed to the bone body by the fixing cap according to an embodiment of the present invention.
3 is an exemplary view showing a connector for inducing engraftment of a living tissue according to another embodiment of the present invention.
4 is an exemplary view showing a fixed state in which the plantar muscle is fixed to the bone body by a fixing cap according to another embodiment of the present invention.
5 is an exemplary view showing a connector for inducing engraftment of a living tissue according to another embodiment of the present invention.
Figure 6 is an exemplary view showing a state in which the Achilles tendon is fixed to the bone body by a fixing cap according to another embodiment of the present invention.
7 is an exemplary view showing a connector in which a coupling part is formed inside a fixing cap according to an embodiment of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to their ordinary or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, so at the time of the present application, they are equivalent to It should be understood that there may be variations.

The present invention relates to a connector in which the Achilles tendon or plantar muscle, which is a corresponding living tissue, is firmly fixed to the bone body, and biologically safely and biologically, the engraftment of living tissue cells is induced, thereby inducing the engraftment of the living tissue with excellent fixation power, refer to the drawings. So let's look at it in more detail as follows.

First, the bone body according to an embodiment of the present invention with reference to FIGS. 1 to 7 is manufactured by 3D printing according to the shape of the bone to be transplanted, and the corresponding part to which the Achilles tendon or plantar muscle, which is a living tissue, is to be fixed among the bone body 110 . There is a fixed part (unsigned) is formed, the fixed cap 200 is mounted on the bone body 110 in which the fixed part (unsigned) is formed.

At this time, the fixing cap 200 forms a pocket so as to be hooked and coupled to the bone (bone) of the corresponding part to which the living tissue is to be fixed among the bone body 110, and the connection part 210 is extended on one side.

The connection part 210 is formed to extend from the fixing cap 200 toward the Achilles tendon or plantar muscle, which is a living tissue, and is connected to the end by interviewing the living tissue. By entering the tissue into the interior, the biological tissue may be wrapped and connected to the surface, or the connection part 210 may be embedded in the interior of the biological tissue and connected to the core by interviewing it.

Here, the fixing cap 200 and the connecting part 210 are made of a mesh to induce engraftment of living tissue cells, and the fixing cap 200 is selectively expanded by elasticity, and the bone body 110 of A composition for inducing engraftment of cells may be applied to the fixing part, the fixing cap 200 and the connection part 210 , and the living tissue is connected to the connection part 210 by the fastening means 220 fastened to the connection part 210 . is fixed on

In this case, the fastening means 220 is preferably in the form of a bolt or pin having a head, but may also be composed of a suture that sutures the connection part 210 in which the Achilles tendon or plantar muscle is accommodated.

Therefore, the connector for inducing engraftment of living tissue according to an embodiment of the present invention is a shape corresponding to the bone (bone) to be transplanted, and the bone body 110 is manufactured by 3D printing, and the connection part 210 ), a fixing cap 200 having a biological tissue (Achilles tendon or plantar muscle) fixed to it is covered and coupled to a part of the bone body 110 that requires the connection of biological tissue, and the biological tissue is closely attached to the bone body 110 . while being fixed

At this time, since the fixing cap 200 is coupled to the corresponding part of the bone body 110 to which the biological tissue is to be fixed, the biological tissue can be easily and firmly fixed to the bone body.

And by increasing the contact area with the living tissue with the connecting portion 210 formed extending from the fixing cap 200, as the tensile force per unit area is reduced, damage to the living tissue due to the tensile stress can be avoided, and the fixing cap 200 And as the living tissue is brought into close contact with the bone body by the connection part 210, engraftment of living tissue cells is promoted and induced, so that the fixation of the living tissue is excellent.

Here, in the present invention, the description is limited to that the bone body 110 is manufactured by 3D printing.

And the connector for inducing engraftment of living tissue of the above configuration can be applied in various ways.

Referring to the embodiment in which the Achilles tendon is connected to the heel bone using a connector for inducing engraftment of living tissue according to an embodiment of the present invention with reference to FIGS. 1 and 2 , the bone body corresponding to the shape of the heel bone is 3D Manufactured by printing

The fixing cap 200 for inducing the generation of engrafted cells so that the Achilles tendon is firmly connected to the bone body 110 is made of a mesh shape and has elasticity, and extends from the fixing cap 200 in the direction of the Achilles tendon The formed connection part 210 is formed to extend in a tubular shape having a hollow opening on one side, the end of the Achilles tendon is inserted through the hollow opening, and the Achilles tendon is accommodated in the connection part 210 .

At this time, the connection part 210 and the Achilles tendon are sutured to each other with a suture that is a fastening means 220 , and the Achilles tendon is fixed to the connection part 210 by the fastening means 220 .

The fixing cap 200 in which the Achilles tendon is fixed to the connection part 210 by the above process is covered with the corresponding part to be fixed to the Achilles tendon of the bone body 110, and the fixing cap 200 is the bone body 110 of The Achilles tendon is coupled to surround the corresponding site to be connected, so that the Achilles tendon is connected to the bone body 110 .

The Achilles tendon connected in this way is more firmly connected to the bone body 110 by the fixing cap 200, and by increasing the contact area with the Achilles tendon with the connection part 210 extended from the fixing cap 200, the unit As the tensile force per area is reduced, damage to the Achilles tendon due to tensile stress can be avoided, and as the Achilles tendon is brought into close contact with the bone body 110 by the fixing cap 200 and the connection part 210, engraftment of the Achilles tendon cells is promoted. Induced, the fixation of the Achilles tendon is excellent and the fixed state is kept protected.

And referring to Figs. 3 and 4, using a connector for inducing engraftment of living tissue according to an embodiment of the present invention, looking at an embodiment in which the plantar muscle is connected to the heel bone, the bone body corresponding to the shape of the heel bone is formed. Manufactured by 3D printing.

The fixing cap 200 for inducing the generation of engrafted cells so that the plantar muscle is firmly connected to the bone body 110 is made of a mesh shape and has elasticity, and moves from the fixing cap 200 to the plantar muscle direction. The extended connection part 210 is formed to extend in a tubular shape having a hollow opening at one side, and an end of the plantar muscle is inserted through the hollow opening, and the plantar muscle is accommodated in the connection part 210 .

At this time, the connection part 210 and the plantar muscle are sutured to each other with a suture that is a fastening means 220 , and the Achilles tendon is fixed to the connection part 210 by the fastening means 220 .

The fixing cap 200, in which the plantar muscle is fixed to the connection part 210 by the above process, is covered on the corresponding part of the bone body 110 to which the plantar muscle is to be fixed, and the fixing cap 200 is fixed to the bone body 110 ), the plantar muscle is coupled to surround the corresponding part to be connected, so that the plantar muscle is connected to the bone body 110 .

The plantar muscle connected in this way is more firmly connected to the bone body 110 by the fixing cap 200, and increases the contact area between the plantar muscle and the bone body 110 to reduce the tensile force per unit area, thereby reducing tensile stress. It avoids the plantar muscle damage caused by the plantar muscle, promotes the generation of engrafted cells in the plantar muscle, and maintains a fixed state.

Therefore, since the fixing cap 200 is covered and coupled to the corresponding portion of the bone body 110 to which the plantar muscle is to be fixed, the plantar muscle can be easily and firmly fixed to the bone body.

And by increasing the contact area with the plantar muscle with the connecting part 210 extended from the fixing cap 200, as the tensile force per unit area is reduced, damage to the plantar muscle due to tensile stress can be avoided, and the fixing cap 200 And as the plantar muscle is brought into close contact with the bone body 110 by the connection part 210, engraftment of the plantar muscle cells is promoted and induced, so that the plantar muscle is excellently fixed and the fixed state is protected and maintained.

In addition, in the connector for inducing engraftment of living tissue according to an embodiment of the present invention with reference to FIGS. 5 and 6 , the connecting part 210 extending in the Achilles tendon direction from the fixing cap 200 is embedded between the Achilles tendon. connected to the core

The connection part 210 has a sheet-like elasticity made of a mesh, is built into the end of the Achilles tendon fixed to the connection part 210, and is connected to the Achilles tendon.

The fixing cap 200 in which the Achilles tendon is fixed to the connection part 210 by the above process is covered with the corresponding part to be fixed to the Achilles tendon of the bone body 110, and the fixing cap 200 is the bone body 110 of The Achilles tendon is coupled to surround the corresponding site to be connected, so that the Achilles tendon is connected to the bone body 110 .

In addition, in the connector for inducing engraftment of living tissue according to an embodiment of the present invention, a fixing means 111 capable of fixing the fixing cap 200 around the bone body 110 is formed, the fixing means ( 111) may act in the form of bolts, pins, and rings, and a plurality of them are arranged at regular intervals in the region to which the fixing cap 200 of the bone body 110 is coupled, coupled to the bone body 110 . By fixing the periphery of the fixed cap 200 to the bone body 110, it is not separated and can be firmly coupled.

Therefore, in the configuration described above, the fixing cap 200 is covered and coupled to the corresponding portion of the bone body 110 to which the Achilles tendon is to be fixed, so that the Achilles tendon can be easily and firmly fixed to the bone body.

And by increasing the contact area with the Achilles tendon with the connecting portion 210 extended from the fixed cap 200, the tensile force per unit area is reduced, thereby avoiding damage to the Achilles tendon due to tensile stress, and the fixed cap 200 and the connecting portion As the Achilles tendon is brought into close contact with the bone body 110 by (210), the engraftment of the Achilles tendon cells is promoted and induced, and the fixation of the Achilles tendon is excellent and the fixed state is protected and maintained.

And the fixing cap 200 may be manufactured together with the bone body 110 when the bone body 110 is manufactured by 3D printing, and may be integrally formed with the bone body 110 .

In addition, as another embodiment of the connector for inducing engraftment of living tissue according to the present invention with reference to FIG. 7 , one side is inserted and coupled to the bone body 110 and fixed, and the living tissue (Achilles) of the bone body 110 is A coupling groove 114 is formed in the region to which the tendon or plantar muscle) is to be fixed, and the coupling part 230 formed inside the fixing cap 200 may be inserted and coupled to the coupling groove 114 .

At this time, the coupling groove 114 is formed as a recess recessed into the inside of the bone body 110, and the coupling end 230 of the fixing cap 200 to which the living tissue is connected is inserted into the coupling groove 114. The living tissue (Achilles tendon or plantar muscle) is fixed to the bone body (110).

A connection part 210 and a coupling part 230 are formed in the fixing cap 200, and the fixing cap 200 and the connection part 210 are formed in a mesh shape and have elasticity, and the connection part 210 has one side of the fixing cap 200. As a tube having an open hollow, the living tissue (Achilles tendon or plantar muscle) is inserted and connected through the hollow, and a coupling part 230 is formed on the other side opposite to the connection part 210 .

Here, the coupling portion 230 of the fixing cap 200 is formed to protrude inside the pocket of the fixing cap 200, and is made of a harder material than the body of the fixing cap 200, the bone body 110 It is coupled to the coupling groove 114 of the is fixed and does not fall out.

For example, the coupling groove 114 has a vertical cross-sectional shape of the coupling groove 114 in a rhombus shape so that the coupling part 230 is slidably coupled in the lateral direction and is the length in the lateral direction of the bone body 110 . The coupling part 230 coupled to the coupling groove 114 can also be formed in a rhombus in a vertical cross-sectional shape, and the coupling groove 114 is a process of fixing the coupling part 230. Looking at , first, the fixing cap 200 is tilted toward the connection part 210 to expose the coupling part 230 formed in the inside of the fixing cap 200 to the outside, and then the coupling part 230 is inserted into the coupling groove ( 114) by sliding in the lateral direction.

And when the coupling of the coupling part 230 to the coupling groove 114 is completed, the fixing cap 200 is again written to the bone body 110 side, and the biological tissue (Achilles tendon or plantar muscle) is to be fixed. to wrap around

As the coupling part 230 to which the living tissue (Achilles tendon or plantar muscle) is fixed is coupled to the coupling groove 114 of the bone body 110, even if a force is applied in the front, back, up and down directions, the The coupling part 230 does not fall out of the coupling groove 114 and continuously maintains the coupled state.

Therefore, while the living tissue (Achilles tendon or plantar muscle) is more firmly fixed to the coupling groove 114 by the fixing cap 200 in which the coupling part 230 is formed, the biological tissue and the bone body 110 are By increasing the contact area and reducing the tensile force per unit area, damage to the living tissue due to tensile stress is avoided, the generation of engrafted cells in the living tissue is promoted, and the fixed state is maintained and protected.

Here, the coupling groove 114 of the bone body 110 and the coupling portion 230 of the fixing cap 200 are not limited to any one shape, and various shapes may be applied, and the coupling of the fixing cap 200 is not limited thereto. A separate fixing means may be further provided so as to maintain the part 230 fixed to the coupling groove 114 of the bone body 110 .

Although the present invention has been described with reference to the embodiment shown in the drawings, which is only exemplary, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

110: bone body
111: fixing means
200: fixed cap
210: connection part
220: fastening means
230: coupling part

Claims (7)

In the connector for connecting the Achilles tendon or plantar muscle, which is a living tissue, to the bone body manufactured by 3D printing along the bone shape to be transplanted,
a fixing cap formed in a mesh shape and formed into a pocket so as to be covered and caught on the corresponding part of the bone body to which the biological tissue is to be fixed;
a connection part formed in a mesh shape, extending from the fixing cap toward the living tissue, and interfacing with the end of the living tissue; and
A connector for inducing engraftment of living tissue comprising a; fastening means coupled to the living tissue accommodated in the connection part, and fixing the biological tissue to the connection part.
The method according to claim 1,
the connection part
A connector for inducing engraftment of a living tissue to an interview by enclosing the living tissue by allowing the living tissue to enter the inside through the opening at the end.
The method according to claim 1,
the connection part
A connector embedded between the inside of the living tissue to induce engraftment of the biological tissue to be interviewed.
delete The method according to claim 1,
A connector for inducing engraftment of living tissue including a fixing means formed around the portion of the bone body to which the fixing cap is coupled, and fixing the end of the fixing cap to the bone body.
The method according to claim 1,
A connector for inducing engraftment of a living tissue formed in a portion of the bone body to which the living tissue is fixed is formed with a coupling groove, and a coupling part coupled to the coupling groove is formed inside the fixing cap.
delete

Images