KR20220104549A - Connector of catheter and connector set thereof - Google Patents

Abstract

The present invention relates to a connector for a catheter, and a connector set thereof. According to one aspect of the present invention, the connector for the catheter comprises: a fixed main body having one end coupled to the catheter, having the 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 main 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 main body and interlocked with the main body hole.

Description

CONNECTOR OF CATHETER AND CONNECTOR SET THEREOF

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

A catheter is a medical device in the form of a thin tube made of a medical material so that it can be inserted into a human body's cavity, tube, and blood vessel. These catheters are used for various purposes in the medical field, and although the degree of rigidity may vary depending on the purpose of use, they generally have thin and flexible properties.

In particular, a catheter used for 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 thickness of about 2 mm or less, and has the shape of a Kean tube.

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

The Y connector includes a hemostatic valve, and one or more side ports are disposed on one side. Such a Y connector is used to insert or remove a guide wire, and is used when injecting a contrast agent, drug, saline, etc. into the tube of the catheter.

In a state where such a Y-connector is coupled to the catheter, angiography is performed in the following order.

With the hemostatic valve open, insert the guide wire into the Y connector and close the hemostatic valve. Then, the guide wire is moved to a target position using a torque device. In a state in which the guide wire has moved by a predetermined distance, the tube of the catheter 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 agent is injected through the side port. After confirming the shape of the blood vessel by injecting the contrast agent, the guide wire is inserted again to move it to the target point, and the tube of the catheter is moved to the target point.

That is, as the distance that the catheter tube moves is increased, the processes of guide wire insertion, catheter tube movement, guide wire removal, contrast medium injection, guide wire reinsertion, and catheter tube movement are repeated several times.

As described above, the reason why the guide wire is removed when the contrast agent is added is because the guide wire may be pushed by the contrast agent to move the position while the contrast agent is being introduced. If the guide wire is pushed by the contrast agent, there is a risk of damage to 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 with the guide wire 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 in 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 insertion and removal of the guide wire may be repeated, thereby damaging the blood vessel.

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 were invented in the background as described above, and when using a catheter for procedures such as acupuncture and angiography, it is intended to provide a connector for a catheter and a connector set that can not repeat the process of inserting and removing a guide wire. .

According to one aspect of the present invention, one end is coupled to a catheter, has a predetermined length, and a fixed body 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 part disposed through the body hole and rotating to fix the guide wire; And is formed to protrude outward from the outer peripheral surface of the fixed body, including a first side port 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 fixed main body to cover the main body hole; a fixing bar coupled to the fixed rotator and inserted into the body hole; and a rotator cover disposed on the other side of the fixed main body to cover the main body hole and coupled to the fixed bar, wherein the fixed bar has a through-groove formed therein so that the guide wire passes therethrough in the longitudinal direction of the fixed main body, A connector for the catheter may be provided.

The depth of the through groove is formed to be deeper than the radius of the fixing bar, the connector for the catheter may be provided.

The guide wire may be provided with a connector for a catheter, which 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.

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

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

The fixed rotator, a handle protruding in a radial direction in which the fixed rotator is rotated is formed, a connector for a catheter may be provided.

The handle may be provided with a connector for a catheter that protrudes in a direction opposite to the direction in which the through groove is formed.

On the other hand, according to an aspect of the present invention, one end is coupled to the catheter (catheter), the guide wire through the fixed connector; 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 passes through in the longitudinal direction. a fixed body having a hole and a body hole formed in a direction perpendicular to the longitudinal direction; a wire fixing part disposed through the body hole and rotating to fix the guide wire; And formed so as to protrude outward from the outer peripheral surface of the fixed body, including a first side port interlocked with the body hole, a catheter connector set may be provided.

In one embodiment of the present invention, when angiography is performed using a catheter, when a contrast agent is injected as the guide wire is fixed by a connector, it is not necessary to remove the guide wire, so it is possible to reduce the time required for the procedure have.

In addition, the side port disposed on the connector is closed when the guide wire is not fixed, and the side port is opened when the guide wire is fixed. There is an effect that can be done.

1 is a view showing a connector set for a catheter according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a disassembled connector set for a catheter according to an embodiment of the present invention.
Figure 3 is a view showing a wire fixing portion of the 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 operated to be movable in the connector set for a catheter according to an embodiment of the present invention.
Figure 5 is a view showing a state in which the guide wire is fixedly operated in the connector set for a catheter according to an embodiment of the present invention.
FIG. 6 is a cross-sectional view taken along 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 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 thereof will be omitted.

In addition, when it is said that a component is 'connected', 'supported', 'connected', 'supplied', 'transferred', or 'contacted' to another component, it is directly connected, supported, connected, It should be understood that supply, delivery, and contact may occur, but other components may exist in between.

The terminology used herein is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In addition, in the present specification, the expressions of the upper side, the lower side, the side surface, etc. are described with reference to the drawings in the drawings, and it is disclosed in advance that if the direction of the corresponding object is changed, it may be expressed differently. For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings, and the size of each component does not fully reflect the actual size.

Also, terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various components, but the components are not limited by these terms. These terms are used only for the purpose of distinguishing one component from another.

The meaning of "comprising," as used herein, specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

1 to 9, a description will be given of a connector set 10 for a catheter according to an embodiment of the present invention. The connector set 10 for a catheter according to an embodiment of the present invention is a connector set 10 that can be used in combination with a catheter when performing procedures such as angiography. The catheter connector set 10 includes a fixed connector 100 and a Y connector 200 .

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

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

And 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 unit 140 to be coupled to the catheter coupling unit 140 .

Also, in the fixed body 110 , a body hole 110a may be formed in a direction perpendicular to the longitudinal direction. The body hole 110a may be coupled with a wire fixing part 120 partially inserted thereinto.

The wire fixing part 120 is inserted into the body hole 110a of the fixing body 110 and is coupled to the fixing body 110 . The wire fixing unit 120 has a rotation axis in the direction in which the body hole 110a is formed in a state in which it is coupled to the fixed body 110 , and may be rotated in the fixed body 110 . The wire fixing unit 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 main body hole 110a of the fixed main body 110 .

In addition, the fixed rotator 121 may be provided with a handle 121a so that an operator can rotate the wire fixing unit 120 . The handle 121a may be formed to protrude from the fixed rotator 121 in a radial direction in which the fixed rotator 121 rotates.

The fixed bar 123 may have a predetermined length so as to be coupled to the fixed rotator 121 and be inserted into the main body hole 110a of the fixed 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 unit 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-sectional 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 like 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 body hole 110a are in close contact with each other.

A through groove 123a is formed in the fixing bar 123 . As shown in FIG. 3 , the through groove 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 groove 123a may be formed along the longitudinal direction of the fixing 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. In this case, the through groove 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 groove 123a may be formed to be deeper than the radius of the cross-section of the fixing bar 123 . That is, the through-groove 123a may be formed to a depth sufficient to allow the central axis of the fixing bar 123 to be located in the through-groove 123a. As the depth of the through hole 123a is formed as described above, when the guide wire W penetrates the through hole 123a, interference with the fixing bar 123 may not occur.

And the through groove (123a) is formed in a direction opposite to the position where the handle (121a) is formed. That is, when the through groove 123a is formed in the negative z-axis direction in the fixed bar 123 , the handle 121a may be formed in the positive z-axis direction in the fixed rotator 121 . Therefore, the operator can confirm the arrangement position of the through groove (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 coupled to the fixing bar 123 so as to cover the open surface on 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 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 rotator cover 125 , and seals between the body hole of the fixed body 110 and the rotator 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 a side surface of the fixed body 110 , and may be formed to protrude from the side surface of the fixed body 110 to have a predetermined angle and a predetermined length. The first side port 130 may be connected to an external device, and a contrast agent or saline solution may be supplied.

The first side port 130 may have a hole formed in the longitudinal direction so that the contrast agent may be supplied with saline, and the hole formed in the first side port 130 may be a body hole 110a formed in the fixed body 110 . can be linked with

Therefore, the contrast agent or saline supplied from the outside may be introduced into the main body hole 110a of the fixed body 110 through the first side port 130, and the contrast agent or saline solution introduced into the main body hole 110a may be supplied to 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 , the first side port 130 is formed with the body hole 110a and the through hole 123a formed in the fixing bar 123 of the wire fixing part 120 according to the position of the It can be linked or blocked. That is, as shown in FIG. 4 , when the through groove 123a is disposed to face downward, the first side port 130 may be in a closed state by the fixing bar 123 , as shown in FIG. 5 . As illustrated, when the through-groove 123a is rotated to face the upper direction, the first side port 130 may be interlocked with the body hole 110a due to the through-groove 123a. In this regard, details will be described later.

The catheter coupling unit 140 may be disposed on one side of the fixed body 110 , and a fixed coupling hole 112 formed at one end of the fixed body 110 may be inserted to be coupled to the fixed body 110 . A hole may be formed in the catheter coupling portion 140 so that the fixing coupling hole 112 of the fixing body 110 can be inserted. And the 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, the catheter coupling part 140 is coupled to the fixing coupling hole 112. It is to be fixed to the catheter coupling portion (140).

The connector sealing part 144 is disposed between the fixed coupling hole 112 and the catheter coupling part 140 , and seals between the positive insertion part and the catheter coupling part 140 .

The Y connector 200 is a commonly used connector, as shown, the Y body 210, the hemostatic valve 220, the wire insertion hole 222, the Y insertion part 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 Y main body 210, the wire insertion hole 222 is formed along the longitudinal direction of the Y main body 210 so that the guide wire (W) can be inserted therein.

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

The hemostatic valve 220 is coupled to the other end of the Y main body 210 , and may prevent a reverse flow of the contrast agent, such as saline.

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

The second side port 230 may have a hole formed in the longitudinal direction so that saline solution, etc. can be supplied, and the hole formed in the second side port 230 may be interlocked with the hole formed in the Y main body 210 . .

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

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

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. can be

At this time, when the guide wire (W) is in a state in which it is arranged to move freely in the longitudinal direction, the through groove (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 so that the through groove 123a faces downward, the first side port 130 is closed by the fixing bar 123 to the body hole ( 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 unit 120 is rotated so that the through groove 123a faces the first side port 130 in the upper direction. When arranged to do so, a part of the guide wire (W) passing through the through hole (123a) is pushed by the fixing bar (123) and can be moved between the fixing bar (123) and the inner surface of the body hole (110a) of the fixing body (110). have.

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 the fixing bar ( 123) and the inner surface of the body hole 110a, it may be fixed so as not to move 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 move in the longitudinal direction, the through groove 123a formed in the fixing bar 123 of the wire fixing unit 120 is formed in the first upward direction as shown. It is disposed in a direction toward the side port 130 .

Accordingly, the first side port 130 may be interlocked with the body hole 110a formed in the fixed body 110 due to the through hole 123a formed in the fixing bar 123 . In this way, when the contrast agent or saline is supplied through the first side port 130 as the first side port 130 is interlocked with the body hole 110a, the contrast agent or saline may be introduced into the fixed connector 100, and , may be supplied to the catheter side.

And as described above, as the guide wire W is fixed, even if the contrast agent or saline supplied through the first side port 130 has a predetermined pressure, the guide wire W is brought together by the flow rate of the contrast agent 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 with saline through the first side port 130, the inside of the fixed connector 100 Since it does not flow into the , the operator can safely move the guide wire (W) for the treatment.

In addition, in this embodiment, as shown in Figure 10, without using the Y connector 200, only the fixed connector 100 can be used alone coupled to the catheter. Since the fixed connector 100 has the same configuration as 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 specified by combining/substituting the disclosed embodiments, without departing from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present 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 part
120: wire fixing part
121: fixed rotary rotator 121a: handle
123: fixing bar 123a: through groove
125: rotor cover
127: first sealing part 129: second sealing part
130: first side port
140: catheter coupling portion
142: connector fixing portion 144: connector sealing portion
200: Y connector
210: Y body 220: hemostasis valve
222: wire insertion hole 224: Y insertion part
230: second side port
W: guide wire

Claims (10)

a fixed body having one end coupled to a catheter, having a predetermined length, a hole through which the guide wire passes in the longitudinal direction, and a body hole formed in a direction perpendicular to the longitudinal direction;
a wire fixing part disposed through the body hole and rotating to fix the guide wire; and
It is formed to protrude outwardly from the outer circumferential surface of the fixed body and includes a first side port interlocked with the body hole,
Connector for catheter. The method of claim 1,
The wire fixing part,
a fixed rotator disposed on one side of the fixed main body to cover the main body hole;
a fixing bar coupled to the fixed rotator and inserted into the body hole; and
and a rotator cover disposed on the other side of the fixed body to cover the main body hole, and coupled to the fixed bar,
A through groove is formed in the fixing bar to allow the guide wire to pass therethrough in the longitudinal direction of the fixing body,
Connector for catheter. 3. The method of claim 2,
The depth of the through groove is formed deeper than the radius of the fixing bar,
Connector for catheter. 3. The method of claim 2,
The guide wire is disposed between the fixing bar and the inner surface of the main body hole when the wire fixing part is rotated so that the through groove faces the first side port,
Connector for catheter. 3. The method of claim 2,
The guide wire is arranged to pass through the through groove when the wire fixing part is rotated so that the through groove faces in a direction opposite to the first side port,
Connector for catheter. 3. The method of claim 2,
The first side port is linked with the body hole when the wire fixing part is rotated so that the through groove faces the first side port,
Connector for catheter. 3. The method of claim 2,
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 groove faces in a direction opposite to the first side port,
Connector for catheter. 3. The method of claim 2,
The fixed rotator is formed with a handle protruding in a radial direction in which the fixed rotator is rotated,
Connector for catheter. 9. The method of claim 8,
The handle protrudes in a direction opposite to the direction in which the through groove is formed,
Connector for catheter. One end is coupled to the catheter (catheter), the guide wire through the fixed connector; 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 is
a fixed body having a predetermined length and having a hole through which the guide wire passes in the longitudinal direction and a body hole formed in a direction perpendicular to the longitudinal direction;
a wire fixing part disposed through the body hole and rotating to fix the guide wire; and
It is formed to protrude outwardly from the outer circumferential surface of the fixed body and includes a first side port interlocked with the body hole,
Connector set for catheter.

Images