KR102537245B1 - Connector of catheter and connector set thereof - Google Patents

Abstract

The present invention relates to a connector and a connector set for a catheter. According to one aspect of the present invention, one end is coupled to a catheter, has a predetermined length, and a hole through which a guide wire passes in the longitudinal direction and the length a fixed body having a body hole formed in a direction perpendicular to the direction; a wire fixing unit disposed through the body hole and rotated to fix the guide wire; and a first side port formed to protrude outward from an outer circumferential surface of the fixed body and interlocked with the body hole, a connector for a catheter may be provided.

Description

Connector and connector set for catheter {CONNECTOR OF CATHETER AND CONNECTOR SET THEREOF}

The present invention relates to a connector and a connector set for a catheter, and more particularly, to a connector and a connector set for a catheter that can be used by being connected to a catheter used in angioplasty.

A catheter is a medical device in the form of a thin tube made of a medical material to be inserted into a cavity, tube, or blood vessel of the human body. These catheters are used for various purposes in the medical field, and although the degree of hardness may vary depending on the purpose of use, they generally have thin and flexible characteristics.

In particular, a catheter used in angiography is used to administer a contrast agent to a blood vessel, and thus has a flexible material, a diameter of about 2 mm or less, and a long tube shape.

Such an angioplasty catheter includes a tube and a hub. The tube has a flexible material and is inserted into the lumen of the human body. The hub is a connecting member that can be operated and manipulated by medical personnel. When angiography is performed, a Y connector is connected to the catheter, and the Y connector is coupled to a hub.

The wye connector includes a hemostatic valve and has one or more side ports disposed on one side. Such a Y connector is used to insert or remove a guide wire and is used to inject contrast agents, drugs, and physiological saline into the catheter tube.

An angiography procedure is performed in the following order in a state in which the Y connector is coupled to the catheter.

With the hemostasis valve open, insert the guide wire into the Y connector and close the hemostasis valve. Then, the guide wire is moved to a target position using a torque device. With the guide wire moved a predetermined distance, the catheter tube is inserted along the guide wire.

At this time, when the tube of the catheter needs to be moved a relatively long distance, the guide wire is removed while the tube is moved a certain distance, and then a little contrast medium is injected through the side port. After confirming the shape of the blood vessel by injecting the contrast medium, the guide wire is re-inserted and moved to the target point, and the catheter tube is moved to the target point.

That is, as the moving distance of the catheter tube increases, the process of inserting the guide wire, moving the catheter tube, removing the guide wire, inserting the contrast medium, reinserting the guide wire, and moving the catheter tube is repeated several times.

As described above, the reason why the guide wire is removed when the contrast medium is injected is that the position of the guide wire may be moved by being pushed by the contrast medium while the contrast medium is injected. When the guide wire is pushed by the contrast agent, there is a risk of damaging the blood vessel by the guide wire.

Therefore, in order to prevent the guide wire from moving when the contrast medium is injected, the contrast medium must be injected while the guide wire is removed. As the process of removing and reinserting the guide wire is repeated, the time required for the procedure increases. In addition, there is a problem that air may be introduced into the blood vessel during the process of inserting and removing the guide wire, and there is a problem that the blood vessel may be damaged as the guide wire insertion and removal process is repeated.

Republic of Korea Patent Publication No. 10-2013-0075128 (2013.07.05.) Republic of Korea Patent Publication No. 10-2018-0017858 (2018.02.21.)

Embodiments of the present invention have been invented against the above background, and when using a catheter for procedures such as hematography, it is intended to provide a connector for a catheter and a connector set that can avoid repeating the process of inserting and removing a guide wire. .

According to one aspect of the present invention, a fixed body having one end coupled to a catheter, having a predetermined length, and having a hole through which a guide wire passes in the longitudinal direction and a body hole formed in a direction perpendicular to the longitudinal direction. ; a wire fixing unit disposed through the body hole and rotated to fix the guide wire; and a first side port formed to protrude outward from an outer circumferential surface of the fixed body and interlocked with the body hole, a connector for a catheter may be provided.

The wire fixing unit may include a fixed rotator disposed on one side of the fixing body so as to cover the main body hole; a fixed bar coupled to the fixed rotator and inserted into the body hole; And a rotator cover disposed on the other side of the fixing body to cover the main body hole and coupled to the fixing bar, wherein the fixing bar has a through-hole through which the guide wire passes in the longitudinal direction of the fixing main body. A connector for the catheter may be provided.

The depth of the through hole may be provided with a connector for a catheter formed deeper than a radius of the fixing bar.

The guide wire may be provided with a connector for a catheter disposed between the fixing bar and an inner surface of the body hole when the wire fixing part is rotated so that the through hole faces the first side port.

The guide wire may be provided with a connector for a catheter disposed to pass through the through hole when the wire fixing part is rotated so that the through hole faces a direction opposite to the first side port.

The first side port may be provided with a connector for a catheter that interlocks with the body hole when the wire fixing part is rotated so that the through hole faces the first side port.

The first side port may be provided with a connector for a catheter that is closed without interlocking with the body hole by the fixing bar when the wire fixing part is rotated so that the through hole faces the direction opposite to the first side port. there is.

The fixed rotator may be provided with a connector for a catheter formed with a handle protruding in a radial direction in which the fixed rotator rotates.

The handle may protrude in a direction opposite to the direction in which the through hole is formed, and a connector for a catheter may be provided.

On the other hand, according to one aspect of the present invention, one end is coupled to the catheter (catheter), the fixed connector through which the guide wire passes; and a Y connector having one end coupled to the fixed connector, through which the guide wire passes, and including a second side port, wherein the fixed connector has a predetermined length and the guide wire penetrates in the longitudinal direction a fixing body having a hole for doing and a body hole formed in a direction perpendicular to the longitudinal direction; a wire fixing unit disposed through the body hole and rotated to fix the guide wire; and a first side port formed to protrude outward from an outer circumferential surface of the fixed body and interlocked with the body hole, a connector set for a catheter may be provided.

According to one embodiment of the present invention, when angiography or the like is performed using a catheter, since the guide wire is fixed by the connector, it is not necessary to remove the guide wire when the contrast agent is injected, thereby reducing the time required for the procedure. there is.

In addition, since the side port disposed in the connector is closed when the guide wire is not fixed, and the side port is opened when the guide wire is fixed, it is possible to safely perform the procedure by preventing contrast medium from being injected while the guide wire is not fixed. There are effects that can be done.

1 is a view showing a connector set for a catheter according to an embodiment of the present invention.
2 is an exploded perspective view showing an exploded connector set for a catheter according to an embodiment of the present invention.
3 is a view showing a wire fixing part of a connector set for a catheter according to an embodiment of the present invention.
Figure 4 is a view showing a state in which the guide wire is movably operated in the connector set for a catheter according to an embodiment of the present invention.
5 is a view showing a state in which a guide wire is fixedly operated in a connector set for a catheter according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view taken along the line AA′ of FIG. 4 .
FIG. 7 is an enlarged view of region C of FIG. 6 .
FIG. 8 is a cross-sectional view taken along the line BB′ of FIG. 5 .
FIG. 9 is an enlarged view of region D of FIG. 8 .
10 is a view showing a connector for a catheter according to an embodiment of the present invention.

Hereinafter, specific embodiments for implementing the present invention will be described in detail with reference to the drawings.

In addition, in the description of the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

In addition, when a component is referred to as 'connecting', 'supporting', 'connecting', 'supplying', 'transferring', or 'contacting' to another component, it is directly connected to, supported by, or connected to the other component. It may be supplied, delivered, or contacted, but it should be understood that other components may exist in the middle.

Terms used in this specification are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In addition, in this specification, expressions such as upper, lower, side, etc. are described based on the drawings, and it is made clear in advance that they may be expressed differently if the direction of the object is changed. For the same reason, some components in the accompanying drawings are exaggerated, omitted, or schematically illustrated, and the size of each component does not entirely reflect the actual size.

In addition, terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by these terms. These terms are only used to distinguish one component from another.

As used herein, the meaning of "comprising" specifies specific characteristics, regions, integers, steps, operations, elements, and/or components, and other specific characteristics, regions, integers, steps, operations, elements, elements, and/or groups. does not exclude the presence or addition of

Referring to FIGS. 1 to 9 , a catheter connector set 10 according to an embodiment of the present invention will be described. A connector set 10 for a catheter according to an embodiment of the present invention is a connector set 10 that can be used by being coupled with a catheter when a procedure such as angiography is performed. The catheter connector set 10 includes a fixed connector 100 and a Y connector 200.

The fixed connector 100 may be connected to a catheter to fix the guide wire W inserted through the Y connector 200 and to inject a contrast medium. The fixing connector 100 includes a fixing body 110, a wire fixing part 120, a first side port 130, and a catheter coupling part 140.

The fixed body 110 has a predetermined length, and a fixed coupling hole 112 is formed in the longitudinal direction. The Y connector 200 may be fixed in the fixing coupling hole 112 and the guide wire W may pass therethrough.

In addition, a fixed coupling hole 112 may be formed at one end of the fixed body 110 . The fixed coupling hole 112 is inserted into the catheter coupling portion 140 and coupled with the catheter coupling portion 140 .

In addition, the fixed body 110 may have a body hole 110a formed in a direction perpendicular to the longitudinal direction. A part of the wire fixing part 120 may be inserted into the main body hole 110a and coupled thereto.

The wire fixing part 120 is inserted into the body hole 110a of the fixing body 110 and coupled to the fixing body 110 . The wire fixing part 120 has a rotation axis in the direction in which the main body hole 110a is formed in a state of being coupled to the fixing body 110 and can be rotated in the fixing main body 110 . The wire fixing part 120 includes a fixed rotator 121, a fixing bar 123, a rotator cover 125, a first sealing part 127 and a second sealing part 129.

The fixed rotator 121 is disposed on one side of the fixed body 110 . The fixed rotator 121 is integrally coupled to the fixed bar 123 and may be coupled to the fixed body 110 so as to cover an open surface on one side of the body hole 110a of the fixed body 110 .

Also, the fixed rotator 121 may include a handle 121a so that the operator can rotate the wire fixing unit 120 . The handle 121a may protrude from the fixed rotator 121 in a radial direction in which the fixed rotator 121 rotates.

The fixing bar 123 may have a predetermined length to be coupled to the fixing rotator 121 and inserted into the main body hole 110a of the fixing body 110 . As shown in FIG. 2 , the fixing bar 123 may have a substantially cylindrical shape. Therefore, in the cylindrical shape of the fixing bar 123, the central axis may be the rotational axis of the wire fixing part 120.

And, as the fixing bar 123 has a cylindrical shape, the cross section of the fixing bar 123 may have a circular shape, and the cross section diameter of the fixing bar 123 may correspond to the diameter of the body hole 110a. . That is, the body hole 110a may have a circular cross section similar to the fixing bar 123 . Therefore, when the fixing bar 123 is rotated in the body hole 110a, the outer circumferential surface of the fixing bar 123 and the inner surface of the main body hole 110a may be rotated in a state of close contact.

A through groove 123a is formed in the fixing bar 123 . As shown in FIG. 3 , the through hole 123a may be formed to have a direction perpendicular to the longitudinal direction of the fixing bar 123 . That is, in a state in which the fixing bar 123 is inserted into the body hole 110a of the fixing body 110, the through hole 123a may be formed along the longitudinal direction of the fixing main body 110. In other words, the guide wire (W) is disposed along the longitudinal direction of the fixing body 110, and accordingly, the guide wire (W) and the fixing bar 123 are disposed perpendicular to each other. At this time, the through hole 123a may be formed to correspond to the longitudinal direction of the fixed body 110 as the guide wire W is formed to pass therethrough.

Here, the depth of the through hole (123a) may be formed deeper than the cross-sectional radius of the fixing bar (123). That is, the through hole 123a may be formed to a depth such that the central axis of the fixing bar 123 can be positioned within the through hole 123a. As the depth of the through hole 123a is formed as described above, interference with the fixing bar 123 may not occur when the guide wire W passes through the through hole 123a.

And the through hole (123a) is formed in a direction opposite to the position where the handle (121a) is formed. That is, when the through hole 123a is formed in the negative z-axis direction in the fixing bar 123, the handle 121a may be formed in the positive z-axis direction in the fixed rotator 121. Therefore, the operator can check the arranged position of the through hole 123a through the direction in which the handle 121a is arranged.

The rotator cover 125 is disposed on the other side of the fixed body 110 and may be combined with the fixing bar 123 to cover the open surface of the other side of the body hole 110a of the fixed body 110 . The rotator cover 125 may be coupled to the fixing bar 123 so as to be rotated together when the fixed rotator 121 is rotated.

The first sealing part 127 is disposed between the fixed rotator 121 and the fixed body 110 and seals between the body hole 110a of the fixed body 110 and the fixed rotator 121 . The first sealing part 127 may have a substantially donut shape, and the fixing bar 123 may be disposed to pass through the first sealing part 127 .

The second sealing part 129 is disposed between the fixed body 110 and the rotor cover 125, and seals between the body hole of the fixed body 110 and the rotor cover 125. The second sealing part 129 may have a substantially donut shape, and the fixing bar 123 may be disposed to pass through the second sealing part 129 .

The first side port 130 may be disposed on the side of the fixed body 110 and protrude from the side of the fixed body 110 at a predetermined angle and to have a predetermined length. The first side port 130 may be connected to an external device, and a contrast agent or saline may be supplied.

In the first side port 130, a hole may be formed in the longitudinal direction to supply the contrast medium and the saline solution, and the hole formed in the first side port 130 is a body hole 110a formed in the fixed body 110. can be linked with

Therefore, the contrast medium or saline supplied from the outside may flow into the body hole 110a of the fixed body 110 through the first side port 130, and the contrast medium or saline introduced into the body hole 110a may flow into the fixed body ( 110) may be supplied to the catheter side along the hole formed in the longitudinal direction.

Here, as shown in FIGS. 4 and 5, according to the position of the through hole 123a formed in the fixing bar 123 of the wire fixing part 120, the first side port 130 has a body hole 110a and It can be interlocked or blocked. That is, as shown in FIG. 4, when the through hole 123a is disposed downward, the first side port 130 may be closed by the fixing bar 123, and in FIG. As shown, when the through hole 123a is rotated and disposed upward, the first side port 130 may interlock with the main body hole 110a due to the through hole 123a. Details in this regard will be described later.

The catheter coupling portion 140 may be disposed on one side of the fixed body 110 and coupled to the fixed body 110 by inserting a fixed coupling hole 112 formed at one end of the fixed body 110 . A hole may be formed in the catheter coupling part 140 so that the fixing coupling hole 112 of the fixing body 110 can be inserted. In addition, a connector fixing part 142 may be disposed between the catheter coupling part 140 and the fixing body 110 . The connector fixing part 142 is inserted into the catheter coupling part 140 through the fixing coupling hole 112 of the fixing body 110, and the catheter coupling portion 140 is coupled so that the fixing coupling hole 112 is formed. It is fixed to the catheter coupling part 140.

The connector sealing portion 144 is disposed between the fixing coupling hole 112 and the catheter coupling portion 140, and seals between the sperm insertion portion and the catheter coupling portion 140.

The Y connector 200 is a commonly used connector, and as shown, the Y body 210, the hemostasis valve 220, the wire insertion hole 222, the Y insertion portion 224, and the second side port ( 230).

The Y body 210 has a predetermined length along the longitudinal direction of the fixed body 110 . The wire insertion hole 222 is formed in the Y body 210 along the longitudinal direction of the Y body 210 so that the guide wire W can be inserted therein.

A guide wire (W) is inserted into the wire insertion hole 222 , and the guide wire (W) may pass through the Y connector 200 and the fixed connector 100 .

The hemostasis valve 220 is coupled to the other end of the Y body 210, and can prevent the contrast medium from flowing backward.

The Y insert 224 may be disposed at one end of the Y body 210 and inserted into the fixed body 110 of the fixed connector 100 so that the Y body 210 is coupled to the fixed body 110.

In the second side port 230, a hole may be formed in the longitudinal direction so that saline or the like may be supplied, and the hole formed in the second side port 230 may interlock with the hole formed in the Y body 210. .

Therefore, saline supplied from the outside may flow into the hole of the Y body 210 through the second side port 230, and the saline water introduced into the hole may flow along the hole formed in the longitudinal direction of the Y body 210. It can be supplied to the catheter side.

Hereinafter, with reference to the drawings shown in FIGS. 6 to 9, the operation of the wire fixing part 120 in a state in which the guide wire W is inserted into the connector set 10 will be described.

As shown in FIGS. 6 and 7 , when the guide wire W is inserted into the connector set 10, the guide wire W moves freely in the connector set 10 in the longitudinal direction of the guide wire W. It can be.

At this time, when the guide wire (W) is arranged to move freely in the longitudinal direction, the through-hole 123a formed in the fixing bar 123 of the wire fixing part 120 is, as shown, the first downward direction. It is disposed in a direction opposite to the side port 130.

As the wire fixing part 120 is rotated and disposed such that the through hole 123a faces the lower direction, the first side port 130 is closed by the fixing bar 123 and the main body hole of the fixing body 110 ( 110a) and may be in a blocked state.

And, in a state in which the guide wire (W) is disposed in the body hole (110a) of the fixed body (110), the wire fixing part (120) is rotated so that the through hole (123a) faces the first side port (130) upward. When arranged to do so, a part of the guide wire (W) passing through the through hole (123a) can be pushed by the fixing bar 123 and moved between the fixing bar 123 and the inner surface of the main body hole 110a of the fixing body 110. there is.

In this way, as a part of the guide wire (W) is disposed between the fixing bar 123 and the inner surface of the body hole 110a of the fixing body 110 as the fixing bar 123 rotates, the guide wire W is fixed to the fixing bar ( 123) and the inner surface of the body hole 110a, it may be fixed so as not to be moved in the longitudinal direction of the guide wire (W).

At this time, when the guide wire (W) is in a fixed state so as not to be moved in the longitudinal direction, the through-hole 123a formed in the fixing bar 123 of the wire fixing part 120 is, as shown, the first upward direction. It is disposed in a direction toward the side port 130.

Therefore, the first side port 130 may interlock with the body hole 110a formed in the fixed body 110 due to the through groove 123a formed in the fixing bar 123. When the contrast medium or saline is supplied through the first side port 130 as the first side port 130 interlocks with the body hole 110a, the contrast medium or saline may flow into the fixed connector 100, , can be supplied to the catheter side.

As described above, even if the contrast medium or saline solution supplied through the first side port 130 is supplied with a predetermined pressure as the guide wire W is fixed, the guide wire W is held together by the flow rate of the contrast medium or saline solution. may not be moved.

Moreover, since the first side port 130 is closed when the guide wire W can be moved in the longitudinal direction, even if the contrast medium is supplied through the first side port 130, the inside of the fixed connector 100 Since it does not flow into, the operator can safely move the guide wire (W) to perform the procedure.

In addition, in this embodiment, as shown in FIG. 10 , only the fixed connector 100 may be used alone coupled to the catheter without using the Y connector 200 . Since the fixed connector 100 has the same configuration as that described above, a description thereof will be omitted.

Although the embodiments of the present invention have been described as specific embodiments, this is merely an example, and the present invention is not limited thereto, and should be construed as having the widest scope according to the embodiments disclosed herein. A person skilled in the art may implement a pattern of a shape not indicated by combining/substituting the disclosed embodiments, but this also does not deviate from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on this specification, and it is clear that such changes or modifications also fall within the scope of the present invention.

10: connector set
100: fixed connector
110: fixed body 110a: body hole
112: fixed coupling hole 114: fixed insertion portion
120: wire fixing part
121: fixed rotator 121a: handle
123: fixing bar 123a: through groove
125: rotator cover
127: first sealing part 129: second sealing part
130: first side port
140: catheter coupling part
142: connector fixing part 144: connector sealing part
200: wye connector
210: Y body 220: hemostasis valve
222: wire insertion hole 224: wire insertion portion
230: second side port
W: guide wire

Claims (10)

A fixing body having one end coupled to a catheter, having a predetermined length, and having a hole through which a guide wire passes in the longitudinal direction and a main body hole formed in a direction perpendicular to the longitudinal direction;
a wire fixing unit disposed through the body hole and rotated to fix the guide wire; and
It is formed to protrude outward from the outer circumferential surface of the fixed body and includes a first side port interlocked with the body hole,
The wire fixing part,
a fixed rotator disposed on one side of the fixed body to cover the body hole; and
A fixed bar coupled to the fixed rotator and inserted into the body hole; includes,
The fixing bar is formed with a through hole through which the guide wire passes in the longitudinal direction of the fixing body.
Connector for catheter. According to claim 1,
The wire fixing part,
Disposed on the other side of the fixing body to cover the main body hole, further comprising a rotator cover coupled to the fixing bar,
Connector for catheter. According to claim 1,
The depth of the through hole is formed deeper than the radius of the fixing bar,
Connector for catheter. According to claim 1,
The guide wire is disposed between the fixing bar and the inner surface of the body hole when the wire fixing part is rotated so that the through hole faces the first side port.
Connector for catheter. According to claim 1,
The guide wire is disposed to pass through the through hole when the wire fixing part is rotated so that the through hole faces the direction opposite to the first side port.
Connector for catheter. According to claim 1,
The first side port is interlocked with the main body hole when the wire fixing part is rotated so that the through hole faces the first side port.
Connector for catheter. According to claim 1,
The first side port is closed without interlocking with the body hole by the fixing bar when the wire fixing part is rotated so that the through hole faces the direction opposite to the first side port.
Connector for catheter. According to claim 1,
The fixed rotator has a handle protruding in a radial direction in which the fixed rotator is rotated,
Connector for catheter. According to claim 8,
The handle protrudes in a direction opposite to the direction in which the through hole is formed,
Connector for catheter. A fixed connector having one end coupled to a catheter and through which a guide wire passes; and
One end is coupled to the fixed connector, the guide wire passes through, and a Y connector including a second side port,
The fixed connector,
a fixed body having a predetermined length and having a hole through which the guide wire passes in the longitudinal direction and a main body hole formed in a direction perpendicular to the longitudinal direction;
a wire fixing unit disposed through the body hole and rotated to fix the guide wire; and
It is formed to protrude outward from the outer circumferential surface of the fixed body and includes a first side port interlocked with the body hole,
The wire fixing part,
a fixed rotator disposed on one side of the fixed body to cover the body hole; and
A fixed bar coupled to the fixed rotator and inserted into the body hole; includes,
The fixing bar is formed with a through hole through which the guide wire passes in the longitudinal direction of the fixing body.
A set of connectors for catheters.

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