KR20230115040A - Medical ligation clips - Google Patents

Abstract

Disclosed is a medical ligation clip which comprises: a first leg portion in the form of a curved bar forming the first pressure surface; a second leg portion in the form of a curved bar that faces the first pressure surface and forms a second pressure surface capable of ligating tubular tissues; a hinge portion connecting one end of the first leg portion and the second leg portion arranged in a V shape; a first locking portion formed on the other end of the first leg portion; and a second locking portion formed on the other end of the second leg portion and capable of being coupled to the first locking portion, wherein the hinge portion is formed with a crescent-shaped slit penetrating both sides, and the slit can have a round extension formed on either side of the sharp side facing the first leg portion and the second leg portion, so that tubular tissue can be stably ligated and the durability of the injection molded hinge portion can be improved.

Description

Medical ligation clips {Medical ligation clips}

The present invention relates to clips for ligating tubular tissues such as blood vessels, and more particularly, to medical ligation clips with improved ligation force and durability.

BACKGROUND ART In general, in order to prevent complications such as excessive bleeding and infection of a patient during a surgical operation, a surgeon needs to ligate tubular tissues such as blood vessels or lymphatic vessels.

In addition, when a tumor such as cancer is removed or a body organ is removed, the doctor must ligature the connected blood vessels prior to tissue separation.

For such ligation, a doctor may use a suture to suture around a surgical blood vessel site or perform ligation using a clip.

However, in the case of suturing using a suture, there is a restriction that sufficient surgical space is required, and the surgical time required for suturing is long, and there is a risk that the sutured thread may unravel. Recently, ligation using a blood vessel ligation clip has been used.

The ligation clip is a clip for ligating tubular tissues such as blood vessels, and can prevent leakage of blood or the like by suturing tubular tissues such as blood vessels cut during surgery using clips.

Conventional ligation clips have problems such as leakage of blood due to weak ligation force or damage due to poor durability.

Korean Patent Publication No. 10-2018-0074398 (published date: 2018.07.03)

One problem to be solved by the present invention is to provide a medical ligation clip with improved ligation force.

Another problem to be solved by the present invention is to provide a medical ligation clip with improved durability.

In order to achieve the above object, a medical ligation clip according to an embodiment of the present invention includes a first leg portion in the form of a bent rod in which a first pressing surface is formed; a bent bar-shaped second leg portion facing the first pressing surface and having a second pressing surface capable of ligating the tubular tissue; a hinge portion connecting one end of the first leg portion and the second leg portion arranged in a V shape; a first locking part formed at the other end of the first leg part; and a second locking portion formed at the other end of the second leg portion and coupled to the first locking portion, wherein crescent-shaped slits penetrating both side surfaces of the hinge portion are formed, and the slits are formed between the first leg portion and the second leg portion. The expansion part may be formed in a round shape on either side of the pointed side toward the part.

In addition, in order to achieve the above object, the medical ligation clip according to an embodiment of the present invention has a first projection formed in the longitudinal direction on either the first pressing surface or the second pressing surface, and the first pressing surface or the second pressing surface. A second protrusion is formed on the other one of the two pressing surfaces in the longitudinal direction, and when the first locking part and the second locking part are coupled, the first protrusion and the second protrusion are spaced apart from each other to ligate the tubular tissue.

In addition, in order to achieve the above object, the medical ligation clip according to an embodiment of the present invention has a ligation groove formed in the longitudinal direction on either the first pressing surface or the second pressing surface, and the first pressing surface or the second pressing surface. A ligation protrusion is formed in the longitudinal direction on the other one of the pressing surfaces, and when the first locking part and the second locking part are coupled, the ligation protrusion is inserted into the ligation groove to ligate the tubular tissue.

In addition, in order to achieve the above object, the hinge portion of the medical ligation clip according to an embodiment of the present invention includes a first hinge connecting the inner end of the first leg portion and the second leg portion based on the slit; and a second hinge connecting the outer ends of the first leg part and the second leg part based on the slit, and the slit may be formed surrounded by the first hinge and the second hinge.

In addition, in order to achieve the above object, the first hinge and the second hinge of the medical ligation clip according to an embodiment of the present invention may have different left and right thicknesses of sections cut perpendicular to the longitudinal direction of the slit.

In addition, in order to achieve the above object, cross sections of the first hinge and the second hinge cut perpendicular to the longitudinal direction of the slit of the medical ligation clip according to an embodiment of the present invention may be formed to be complementary to each other.

In addition, in order to achieve the above object, the hinge portion of the medical ligation clip according to an embodiment of the present invention may be formed by injecting a non-degradable polymer or a biodegradable polymer from the pointed end of the slit to the opposite end direction.

According to the medical ligation clip according to an embodiment of the present invention, the first leg portion in the form of a bent bar on which the first pressing surface is formed; a bent bar-shaped second leg portion facing the first pressing surface and having a second pressing surface capable of ligating the tubular tissue; a hinge portion connecting one end of the first leg portion and the second leg portion arranged in a V shape; a first locking part formed at the other end of the first leg part; and a second locking portion formed at the other end of the second leg portion and coupled to the first locking portion, wherein crescent-shaped slits penetrating both side surfaces of the hinge portion are formed, and the slits are formed between the first leg portion and the second leg portion. Since the extension part can be formed in a round shape on either side of the pointed end facing the part, the tubular tissue can be stably ligated and the durability of the hinge part formed by injection molding can be improved.

In addition, according to the medical ligation clip according to an embodiment of the present invention, the first projection is formed in the longitudinal direction on either the first pressing surface or the second pressing surface, and the other one of the first pressing surface or the second pressing surface A second protrusion is formed in the longitudinal direction, and when the first locking part and the second locking part are coupled, the first protrusion and the second protrusion are spaced apart from each other so that the tubular tissue can be ligated. leakage can be prevented.

In addition, according to the medical ligation clip according to an embodiment of the present invention, a ligation groove is formed in the longitudinal direction on either the first pressing surface or the second pressing surface, and on the other one of the first pressing surface or the second pressing surface. A ligation protrusion is formed in the longitudinal direction, and when the first locking part and the second locking part are coupled, the ligation protrusion is inserted into the ligation groove to ligate the tubular tissue, thereby preventing leakage of blood or the like by ligating the tubular tissue while bending. can do.

In addition, according to the medical ligation clip according to an embodiment of the present invention, the first hinge connecting the inner end of the first leg portion and the second leg portion based on the slit; And a second hinge connecting the outer end of the first leg portion and the second leg portion based on the slit, and the slit may be formed surrounded by the first hinge and the second hinge, thereby improving durability of the hinge portion. .

In addition, according to the medical ligation clip according to an embodiment of the present invention, since the left and right thicknesses of the cross sections of the first hinge and the second hinge cut perpendicular to the longitudinal direction of the slit may be formed to be different from each other, durability of the hinge part may be improved. there is.

In addition, according to the medical ligation clip according to an embodiment of the present invention, the cross sections of the first hinge and the second hinge cut perpendicular to the longitudinal direction of the slit can be formed to be complementary to each other, so that the durability of the hinge portion can be improved. there is.

In addition, according to the medical ligation clip according to an embodiment of the present invention, since the hinge portion may be formed by injecting a non-degradable polymer or a biodegradable polymer from the sharp end of the slit to the opposite end, the non-degradable polymer vortex or It is possible to improve the durability of the hinge part by forming a biodegradable polymer vortex.

1 shows a perspective view of a medical ligation clip according to an embodiment of the present invention.
Figure 2 shows a front view of the medical ligation clip of Figure 1.
Figure 3 shows a side view of the medical ligation clip of Figure 1;
Figure 4 is a cross-sectional perspective view of the hinge portion of the medical ligation clip of Figure 1;
5 is a perspective view of a medical ligation clip according to another embodiment of the present invention.
6 is a diagram illustrating a state of use of a medical ligation clip according to the present invention.

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

However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

The X, Y, and Z axes shown in the drawing are arbitrarily determined for convenience of description, not for limitation of rights. , and the Z-axis is defined as pointing up and down.

Each direction described below is based on this, except for cases specifically limited otherwise.

Top (top), bottom (bottom), left and right (side or side), front (front, front), back (back, back), etc., which refer to directions in the description and claims of the invention, etc., are not intended to limit the use of rights. For convenience of description, the relative position between the drawings and configurations is set as a standard, and each direction described below is based on this, except when specifically limited otherwise.

1 to 4 and 6, the medical ligation clip 10 according to an embodiment of the present invention includes a first leg portion 100 in the form of a bent rod in which a first pressing surface 110 is formed; a bent bar-shaped second leg portion 200 facing the first pressing surface 110 and having a second pressing surface capable of ligating the tubular tissue 1; a hinge portion 300 connecting one end of the first leg portion 100 and the second leg portion 200 arranged in a V shape; a first locking part 400 formed at the other end of the first leg part 100; and a second locking part 500 formed at the other end of the second leg part 200 and coupled to the first locking part 400 .

The hinge part 300 is formed with a crescent-shaped slit 310 penetrating both sides, and the slit 310 is round on either side of the sharp points toward the first leg part 100 and the second leg part 200. An extension 311 may be formed in this way.

The medical ligation clip 10 according to an embodiment of the present invention may be integrally formed by injecting a synthetic resin.

The synthetic resin forming the medical ligation clip 10 according to an embodiment of the present invention may be a non-degradable polymer or a biodegradable polymer.

Referring to FIGS. 1 to 4 and 6 , the first leg portion 100 is one of branches arranged in a V shape around the hinge portion 300 .

The first leg part 100 may be formed to extend upward around the hinge part 300 .

The first leg part 100 may be formed in the shape of a bent bar having a rectangular cross section.

The first leg part 100 may be formed such that one end faces backward and downward and the other end faces forward and upward.

The hinge part 300 may be formed at one end of the first leg part 100 and the first locking part 400 may be formed at the other end.

The first boss 120 may be formed on the front upper part of the first leg part 100 .

The first boss 120 may be formed to protrude toward both sides of the first leg portion 100 .

The first boss 120 is one of the components for fitting the medical ligation clip 10 to the clip applier 2 (clip applier).

The first leg portion 100 may have a first pressing surface 110 that presses the top of the tubular tissue 1 at a lower portion of the first leg portion 100 .

The first pressing surface 110 is a part for ligating the tubular tissue 1 together with the second pressing surface 210 .

In the first leg part 100 , a first protrusion 111 may be formed on the first pressing surface 110 in the longitudinal direction.

The first protrusion 111 protrudes from the first pressing surface 110 and presses the tubular tissue 1 .

The first protrusion 111 may ligate the tubular tissue 1 together with the second pressing surface 210 .

The first protrusion 111 may be formed in the form of a straight line, a curved line, a wavy line, or a zigzag line.

If the first protrusion 111 is formed to be long, such as a wavy line or a zigzag line, the portion pressing the tubular tissue 1 may be more increased than a straight line or a curved line.

The first leg portion 100 may have a plurality of first insertion grooves 130 formed on both side surfaces of the human body tissue.

When human tissue enters the first insertion groove 130 after ligating the tubular tissue 1, movement of the medical ligation clip 10 can be minimized.

Referring to FIGS. 1 to 4 and 6 , the second leg portion 200 is one of branches arranged in a V shape around the hinge portion 300 .

The second leg part 200 may be disposed in a V shape around the hinge part 300 together with the first leg part 100 .

The second leg part 200 may be formed to extend downward with respect to the hinge part 300 .

The second leg part 200 may be formed in a bent rod shape having a rectangular cross section.

The second leg part 200 has a bar shape bent in the same direction as the first leg part 100 .

The second leg part 200 may be formed such that one end faces upwards in the rear direction and the other end faces downwards in the front direction.

The second leg part 200 may have a hinge part 300 formed at one end and a second locking part 500 formed at the other end.

Second bosses 220 may be formed on both sides of the other end of the second leg part 200 based on the second locking part 500 .

The second boss 220 may be formed to protrude toward both sides of the second leg portion 200 .

The second boss 220 may be formed to protrude in the forward direction of the second leg part 200 .

When the second boss 220 protrudes in the forward direction of the second leg part 200 , the first locking part 400 may be guided to the second locking part 500 .

A protrusion 221 guiding the first locking part 400 to the second locking part 500 may be formed at an upper portion of the second boss 220 .

The protruding portion 221 formed on the upper portion of the second boss 220 has rounded corners to prevent damage to human tissue.

The second boss 220 is a configuration for fitting the medical ligation clip 10 to the clip applier 2 together with the first boss 120.

The second leg portion 200 may have a second pressing surface 210 formed thereon to press down the tubular tissue 1 .

The second pressing surface 210 is a part for ligating the tubular tissue 1 together with the first pressing surface 110 .

The second leg portion 200 may have a second protrusion 211 formed on the second pressing surface 210 in the longitudinal direction.

The second protrusion 211 protrudes from the second pressing surface 210 and presses the tubular tissue 1 .

The second protrusion 211 may ligate the tubular tissue 1 together with the first pressing surface 110 .

When the tubular tissue 1 is ligated, the second protrusion 211 may be spaced apart from the first protrusion 111 at a predetermined interval.

The first protrusion 111 and the second protrusion 211 may double-ligate two places of the tubular tissue 1 spaced apart at a predetermined interval.

The second protrusion 211 may be formed in the form of a straight line, a curved line, a wavy line, or a zigzag line.

If the second protrusion 211 is formed to be long, such as a wavy line or a zigzag line, the portion that presses the tubular tissue 1 may be more increased than a straight line or a curved line.

The first protrusion 111 and the second protrusion 211 may be formed to complement each other.

The second leg portion 200 may have a plurality of second insertion grooves 230 formed on both side surfaces of the second leg portion 200 into which human tissue is inserted.

When human tissue enters the second insertion groove 230 after ligating the tubular tissue 1, movement of the medical ligation clip 10 can be minimized.

Referring to FIGS. 1 to 4 , the hinge part 300 connects one end of the first leg part 100 and the second leg part 200 arranged in a V shape.

The first leg part 100 and the second leg part 200 arranged in a V shape extend forward with respect to the hinge part 300 .

The first leg part 100 may rotate in the direction of the second leg part 200 based on the hinge part 300 .

The second leg part 200 may rotate in the direction of the first leg part 100 based on the hinge part 300 .

A crescent-shaped slit 310 penetrating both sides of the hinge portion 300 may be formed.

The slit 310 is a space penetrating the hinge part 300 in the left and right directions.

The crescent-shaped slit 310 may have one sharp end facing the first leg part 100 and the other sharp end facing the second leg part 200 .

In the slit 310 , an extension portion 311 may be formed in a round shape on either side of the sharp points toward the first leg portion 100 and the second leg portion 200 .

When the slit 310 is formed, the hinge part 300 can operate more flexibly.

When the first leg part 100 and the second leg part 200 come close to each other in order to ligate the tubular tissue 1, the slit 310 is reduced to prevent the hinge part 300 from being damaged.

The hinge part 300 may include a first hinge 320 and a second hinge 330 that are separated based on the slit 310 .

The first hinge 320 connects the inner ends of the first leg part 100 and the second leg part 200 based on the slit 310 .

The second hinge 330 is a part connecting the outer ends of the first leg part 100 and the second leg part 200 based on the slit 310 .

The slit 310 may be formed in a crescent shape surrounded by the first hinge 320 and the second hinge 330 .

The first hinge 320 and the second hinge 330 may have different left and right thicknesses of sections cut perpendicular to the longitudinal direction of the slit 310 .

Cross sections of the first hinge 320 and the second hinge 330 cut perpendicular to the longitudinal direction of the slit 310 may be formed to be complementary to each other.

The left and right sides of the first hinge 320 and the second hinge 330 facing each other based on the slit 310 may be formed to have different thicknesses.

The first hinge 320 may be thick on either the left side or the right side and thin on the other side, and the second hinge 330 may be formed complementary to the first hinge 320 to engage with it.

The rear end surfaces 321 and 322 of the first hinge 320 and the front end surfaces 331 and 332 of the second hinge 330 may be formed in a flat or stepped shape.

The hinge portion 300 may be formed by injecting synthetic resin from the first leg portion 100 toward the second leg portion 200 .

The synthetic resin injected into the mold for forming the medical ligation clip 10 in the direction from the first leg part 100 to the second leg part 200 is divided at the top of the slit 310 and again at the bottom of the slit 310. meet

Since the synthetic resin divided at the top of the sharp slit 310 quickly passes through the first hinge 320 and the second hinge 330, it is possible to prevent the temperature of the synthetic resin from falling, and the hinge at the bottom of the slit 310 Creation of a weld line in the branch 300 can be minimized.

The synthetic resin divided at the upper part of the slit 310 may form a vortex while passing through the first hinge 320 and the second hinge 330 having different left and right thicknesses.

After being divided at the upper part of the slit 310, the synthetic resins in which vortices are formed may meet quickly at the lower part of the slit 310 and be mixed with each other.

The synthetic resin that is mixed again at the bottom of the slit 310 can minimize the formation of weld lines in the hinge part 300 at the bottom of the slit 310 .

The expansion part 311 under the slit 310 may disturb the weld line formed in the hinge part 300 under the slit 310 to form a lattice structure in which the synthetic resins are interlocked.

By reducing the generation of weld lines, it is possible to improve durability by preventing the hinge portion 300 under the slit 310 from being broken.

1 to 4, the first locking part 400 and the second locking part 500 are used to open and close the other ends of the first leg part 100 and the second leg part 200 that are widened in a V shape. Part.

The first locking part 400 may be formed in a hook shape at the other end of the first leg part 100 .

The hook-shaped first locking surface 410 may be formed in a shape in which a central line in the longitudinal direction protrudes from left and right sides.

The second locking part 500 may be formed in a form in which the hook-shaped first locking part 400 is hooked to the other end of the second leg part 200 .

The second locking part 500 may be formed in a shape in which the second locking surface 510 is recessed so as to be engaged with the hook-shaped first locking surface 410 in which the central line protrudes.

5, the medical ligation clip 10 according to another embodiment of the present invention has a ligation groove 112 in the longitudinal direction on either the first pressing surface 110 or the second pressing surface 210. formed, a ligation protrusion 212 is formed in the longitudinal direction on the other one of the first pressing surface 110 and the second pressing surface 210, and the first locking part 400 and the second locking part 500 are formed. When combined, the ligation protrusion 212 is inserted into the ligation groove 112 to ligate the tubular tissue 1.

Hereinafter, a case in which the ligation groove 112 is formed on the first pressing surface 110 and the ligation protrusion 212 is formed on the second pressing surface 210 will be described as an example.

The first leg portion 100 may have a ligation groove 112 formed on the first pressing surface 110 to press the tubular tissue 1 in the longitudinal direction.

The ligation groove 112 may be formed by being recessed in the first pressing surface 110 .

The ligation groove 112 may ligate the tubular tissue 1 together with the ligation protrusion 212 .

The ligation groove 112 may be formed in the form of a straight line, a curved line, a wavy line, or a zigzag line.

When the ligation groove 112 is formed as long as a wavy line or a zigzag line, the portion that compresses the tubular tissue 1 may be more increased than a straight line or a curved line.

The second leg portion 200 may have a ligation protrusion 212 formed on the second pressing surface 210 to press the tubular tissue 1 in the longitudinal direction.

The ligation protrusion 212 may protrude from the second pressing surface 210 .

The ligation protrusion 212 may be inserted into the ligation groove 112 to ligate the tubular tissue 1 .

The ligating protrusion 212 may be inserted into the ligating groove 112 with a predetermined gap.

When the ligation protrusion 212 is inserted into the ligation groove 112, the tubular tissue 1 is bent and ligated to prevent leakage of blood or the like.

The ligation protrusion 212 may be formed in the form of a straight line, a curved line, a wavy line, or a zigzag line.

If the ligation protrusion 212 is formed long, such as a wavy line or a zigzag line, the portion pressing the tubular tissue 1 may be more increased than a straight line or a curved line.

The ligation groove 112 and the ligation protrusion 212 may be formed in a form complementary to each other.

In the foregoing, although specific embodiments of the present invention have been described and shown, the present invention is not limited to the described embodiments, and it is common knowledge in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have

Therefore, such modifications or variations should not be individually understood from the technical spirit or viewpoint of the present invention, and modified embodiments should be said to belong to the scope of the present invention.

1: tubular tissue
2: Applier
10: medical ligation clip
100: first leg
110: first pressing surface
111: first protrusion
112: ligation groove
120: 1st boss
130: first insertion groove
200: second leg
210: second pressing surface
211: second protrusion
212: ligation protrusion
220: 2nd boss
221: protrusion
230: second insertion groove
300: hinge part
310: slit
311: extension
320: first hinge
321: first side
322: second side
330: second hinge
331: third side
332: 4th side
400: first locking unit
410: first locking surface
500: second locking unit
510: second locking surface

Claims (7)

a first leg portion in the form of a bent rod on which a first pressing surface is formed;
a bent bar-shaped second leg portion facing the first pressing surface and having a second pressing surface capable of ligating tubular tissue;
a hinge portion connecting end portions of the first leg portion and the second leg portion arranged in a V shape;
a first locking part formed at the other end of the first leg part; and
A second locking portion formed at the other end of the second leg portion and coupled to the first locking portion;
The hinge part is formed with a crescent-shaped slit penetrating both sides,
The medical ligation clip, characterized in that the slit is formed in a round extension at either one of the sharp ends facing the first leg portion and the second leg portion. According to claim 1,
A first projection is formed in the longitudinal direction on either the first pressing surface or the second pressing surface,
A second projection is formed in the longitudinal direction on the other one of the first pressing surface or the second pressing surface,
When the first locking part and the second locking part are coupled, the first protrusion and the second protrusion are spaced apart from each other to ligate the tubular tissue. According to claim 1,
A ligation groove is formed in the longitudinal direction on either the first pressing surface or the second pressing surface,
A ligation protrusion is formed in the longitudinal direction on the other one of the first pressing surface or the second pressing surface,
When the first locking part and the second locking part are coupled, the ligation protrusion is inserted into the ligation groove to ligate the tubular tissue. According to claim 1,
The hinge part,
a first hinge connecting inner ends of the first leg part and the second leg part based on the slit; and
A second hinge connecting the outer ends of the first leg and the second leg based on the slit,
The medical ligation clip, characterized in that the slit is formed surrounded by the first hinge and the second hinge. According to claim 4,
The first hinge and the second hinge are medical ligation clips, characterized in that the left and right thicknesses of the cross section cut perpendicular to the longitudinal direction of the slit are formed differently from each other. According to claim 5,
The medical ligation clip, characterized in that cross sections of the first hinge and the second hinge cut perpendicular to the longitudinal direction of the slit are formed complementary to each other. According to any one of claims 1 to 6,
The medical ligation clip, characterized in that the hinge portion is formed by injecting a non-degradable polymer or a biodegradable polymer from the pointed end of the slit to the opposite end.

Images