KR102491079B1 - Central venous catheterization kit - Google Patents

Abstract

A catheter insertion kit and a method for inserting an intravascular catheter using the catheter insertion kit are disclosed.
Among them, a catheter insertion kit includes a port unit provided with a port flow path, a guide needle provided with a needle flow path coupled to the port unit and insertable into a blood vessel and communicating with the port flow path, and a port unit through which blood is sucked through the guide needle. It may include a syringe for providing a negative pressure, and a guide wire that penetrates the port flow path and the needle flow path and is insertable into the blood vessel.

Description

Catheter Insertion Kit {CENTRAL VENOUS CATHETERIZATION KIT}

The present invention relates to catheter insertion kits.

Recently, due to the development and increase in demand of ultrasound machines, ultrasound machines are also being used in central venous catheterization in operating rooms. Due to the excellent success rate and safety of central venous catheterization according to ultrasound guidance, it is used as a standard procedure for central venous catheterization in operating rooms.

Among the central veins, the jugular vein is easily accessible and has been reported to have fewer postoperative complications compared to other central veins, so it is most often selected for central venous catheterization in the operating room. In conventional ultrasound-guided jugular central venous catheterization, the location of the jugular vein and artery is confirmed through ultrasound exploration, and the jugular vein is punctured while applying negative pressure to an introducer needle connected to a syringe under ultrasound monitoring. After blood is sucked through the guide needle, the tip of the guide needle is confirmed with ultrasound, and then a guide wire (spring-wire) is inserted into the hole at the back of the syringe.

After the guide wire passes through the guide needle and is inserted into the jugular vein, ultrasound is used again to confirm that the guide wire is in the proper position from the jugular vein to the brachiocephalic vein, then the syringe is removed and a central venous catheter is inserted. .

However, in order to insert the guide wire after aspirating blood through the guide needle during the procedure, the ultrasound probe held in the left hand must be released, the syringe held in the right hand must be held again with the left hand, and the guide wire must be inserted into the syringe with the right hand. , if the tip of the guide needle is moved out of the blood vessel during the process of changing hands and inserting the guide wire behind the syringe, the vessel puncture may be repeated. Such repetitive vascular puncture may cause complications by generating hematomas, and may reduce the success rate of jugular central venous catheterization. In addition, the conventional method cannot monitor the insertion of the guide wire into the brachial vein through the jugular vein by ultrasound in real time, and malposition of the guide wire may occur.

Publication No. 10-2003-0035476 (published on May 9, 2003)

Embodiments of the present invention are intended to provide a catheter insertion kit capable of quickly and accurately inserting a guide wire into the central vein of the jugular vein.

A conduit insertion kit according to one aspect of the present invention includes a port unit provided with a port passage; an induction needle coupled to the port unit, insertable into a blood vessel, and provided with a needle passage communicating with the port passage; a syringe providing negative pressure to the port unit so that blood is sucked through the guide needle; and a guide wire insertable into the blood vessel through the port passage and the needle passage.

At this time, the port unit is a port; and a holder coupled to the port so as to be supported on a side of the syringe, wherein the port has a first coupler to which the guide needle is coupled at a front end and a second coupler to which the syringe is inserted at a rear end thereof. a port body having a through hole formed thereon and providing the port passage; And it may include a port side portion connected to the upper portion of the port body portion at a downward slope so as to communicate with the through hole.

In addition, the port unit may further include a guide piece mounted on the port site portion to converge the guide wire inserted in the holder into the through hole.

In addition, the guide piece has a conical inclined guide surface for guiding the guide wire toward the inner center, and a guide inclined portion through which a guide passage is formed from the tip side of the inclined guide surface toward the through hole; and a guide packing part having an edge part coupled to the guide inclined part so as to be in close contact with the inner diameter side of the side port part, and a packing hole positioned on the same extension line as the guide passage formed in a center part.

In addition, the holder body portion for providing a holder passage for guiding the guide wire to the port; and a holder mounting portion provided at a front end of the holder body portion and coupled to the port side portion through an outer diameter portion corresponding to an inner diameter portion of the port side portion.

In addition, the holder may further include a holder packing part provided between the holder body part and the holder mounting part so as to be in close contact with an end of the port side part when the holder mounting part is coupled to the port side part.

In addition, the port further includes a guide tube extending curvilinearly from the through hole toward the guide needle in order to guide the guide wire inserted into the holder to the guide needle, and an inner diameter of the guide tube is formed through the through hole. It may have a diameter that gradually decreases in a direction from the hole toward the outlet.

A method for inserting a conduit into a blood vessel using a catheter insertion kit according to an aspect of the present invention includes the step of puncturing a blood vessel by inserting the guide needle of the above-described catheter insertion kit into a blood vessel; A blood suction step of sucking blood by applying a negative pressure to an induction needle inserted into a blood vessel; a guide wire insertion and movement step of inserting a guide wire into the punctured blood vessel and moving the guide wire to a target position within the blood vessel; and a catheter insertion step of inserting the catheter to a target location in the blood vessel using a guide wire.

According to an embodiment of the present invention, by quickly and accurately inserting a guide wire into a blood vessel after blood vessel puncture, there is an advantage in that unnecessary procedures can be reduced and procedure time can be shortened in jugular vein central venous catheterization.

In addition, according to an embodiment of the present invention, since there is no change in the position of the needle that can occur in the conventional process of inserting the guide wire behind the syringe after blood is sucked through the guide needle, real-time observation with ultrasound can be performed even in the process of inserting the guide wire. There are advantages to being able to.

In addition, according to an embodiment of the present invention, when inserting a central venous catheter under ultrasound guidance, the first attempt success rate can be increased, and multiple jugular vein punctures, hematomas, punctures of the posterior jugular vein, and abnormal position of the guide wire can be prevented. It has the advantage of reducing complications caused by malposition.

1 is a configuration diagram showing a catheter insertion kit according to an embodiment of the present invention.
FIG. 2 is an enlarged view illustrating an enlarged portion “A” of FIG. 1 .
3 is a state diagram showing a state in which the catheter insertion kit according to an embodiment of the present invention is inserted into a blood vessel.
4 is a state diagram illustrating a state in which the catheter insertion kit according to an embodiment of the present invention sucks blood after being inserted into a blood vessel.
5 is a state diagram illustrating a state in which a guide wire is inserted after a catheter insertion kit according to an embodiment of the present invention is inserted into a blood vessel and blood is sucked.
6 is a configuration diagram showing a catheter insertion kit according to a modified embodiment of the present invention.
7 is a block diagram illustrating a method for inserting an intravascular conduit according to an embodiment of the present invention.

Hereinafter, configuration and operation according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The following description is one of several aspects of the present invention that may be claimed, and the following description may form part of the detailed description of the present invention. However, in describing the present invention, detailed descriptions of well-known configurations or functions may be omitted to clarify the present invention.

Since the present invention can make various changes and include various embodiments, specific embodiments will be illustrated in the drawings and described in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention.

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. It is understood that when a component is referred to as being 'connected' or 'connected' to another component, it may be directly connected or connected to the other component, but other components may exist in the middle. It should be. Terms used in this application 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.

1 is a configuration diagram showing a conduit insertion kit according to an embodiment of the present invention, FIG. 2 is an enlarged view showing an enlarged portion “A” of FIG. 1, and FIG. 3 is a conduit according to an embodiment of the present invention. FIG. 4 is a state diagram showing a state in which the insertion kit is inserted into a blood vessel, and FIG. 4 is a state diagram showing a state in which blood is sucked after the catheter insertion kit according to an embodiment of the present invention is inserted into a blood vessel. FIG. It is a state diagram illustrating a state in which a guide wire is inserted after blood is sucked in a state in which the catheter insertion kit according to the embodiment is inserted into a blood vessel.

1 to 5, the catheter insertion kit 10 according to an embodiment of the present invention includes a port unit 100, an induction needle 200, a syringe 300 and a guide wire 400. can include

Specifically, the port unit 100 may be provided in the form of a “Y” shaped branch pipe. The guide needle 200 may be mounted on the front end of the port unit 100, and the syringe 300 may be mounted on the rear end of the port unit 100. A port passage 101 may be formed inside the port unit 100 . The port flow path 101 may guide the movement of the guide wire 400 or guide the movement of blood sucked through the guide needle 200 .

The port unit 100 may include a port 110 , a holder 120 and a guide piece 130 .

The port 110 may include a port body portion 111 connecting the guide needle 200 and the syringe 300 and a port side portion 112 connected to the port body portion 111 in communication. . A first coupler 111a into which the guide needle 200 is fitted may be formed at the front end of the port body 111 . Since the inner diameter of the first coupler 111a has a diameter corresponding to the outer diameter of the insertion end of the guide needle 200, when the insertion end of the guide needle 200 is inserted into the first coupler 111a, the guide needle (200) may be fixedly coupled to the first coupler (111a).

A second coupler 111b into which the syringe 300 is inserted may be formed at the rear end of the port body 111 . Since the inner diameter of the second coupler 111b has a diameter corresponding to the outer diameter of the insertion end of the syringe 300, when the insertion end of the syringe 300 is inserted into the second coupler 111b, the syringe (300) may be fixedly coupled to the second coupler (111b). A through hole 111c to which the port side portion 112 is coupled may be formed in an upper portion of the port body portion 111 .

The port side portion 112 may be connected to the upper portion of the port body portion 111 with a downward slope so as to communicate with the through hole 111c. A conical side surface 112a for guiding the guide wire 400 to the through hole 111c may be formed at the front end of the port side portion 112, and a holder 120 is formed at the rear end of the port side portion 112. can be inserted and combined.

The holder 120 may be coupled to the port 110 and supported on the side of the syringe 300 . Holder 120 may be configured in the form of a handle that is easy for a user to grip. The holder 120 may include a holder body part 121 , a holder mounting part 122 and a holder packing part 123 .

The holder body 121 may provide a holder passage 104 guiding the guide wire 400 to the port 110 . The holder passage 104 may be formed through the holder body 121 so as to be positioned on the same line as the guide passage 103 .

The holder mounting portion 122 may be provided at the front end of the holder body portion 121 . Since the outer diameter of the holder mounting portion 122 has a diameter corresponding to the inner diameter of the port side portion 112, when the holder 120 is mounted on the port 110, the holder mounting portion 122 of the holder 120 It may be fixedly coupled to the port side portion 112 of the port 110. And, the holder packing part 123 may be installed on the outer diameter of the holder mounting part 122 .

The holder packing part 123 may be provided in the form of an elastic ring in the form of a ring. When the holder mounting portion 122 is coupled to the port side portion 112, the holder packing portion 123 may be watertight between the holder 120 and the port 110 so as to be in close contact with the end of the port side portion 112. .

The guide piece 130 may be mounted inside the port side portion 112 . The guide piece 130 may guide the guide wire 400 inserted from the holder 120 to converge into the through hole 111c of the port body 111 . The guide piece 130 may include a guide inclined portion 131 for guiding the guide wire 400 toward the inner center, and a guide packing portion 132 closely adhered to the inner diameter side of the side port 110 portion.

A conical inclined guide surface 131a may be formed on the guide inclined part 131, and guide the guide wire 400 to the through hole 111c of the port body part 111 at the tip side of the inclined guide surface 131a. A guide passage 103 may be formed through. The guide packing part 132 may be coupled to the guide inclined part 131, and a packing hole 132a located on the same extension line as the guide passage 103 may be formed at the center of the guide packing part 132. .

The guide needle 200 may be coupled to the front end of the port unit 100 so as to be inserted into the blood vessel V. The guide needle 200 may be a hollow needle in which a needle passage 201 communicating with the port passage 101 is formed. When negative pressure is provided from the syringe 300 in a state in which the induction needle 200 is inserted into the blood vessel V, the induction needle 200 may suck blood in the blood vessel V. The blood sucked through the guide needle 200 may be accommodated in the syringe 300 .

The syringe 300 may be provided in the form of a syringe capable of sucking blood from the blood vessel V through the guide needle 200 . The syringe 300 provides a negative pressure to the port unit 100 so that the blood in the blood vessel V is sucked through the guide needle 200 . Since the syringe 300 has a structure corresponding to a typical syringe configuration, a detailed description thereof will be omitted.

The guide wire 400 may be provided in the form of a wire for guiding a conduit (eg, a central venous catheter) from the jugular vein to the brachiocephalic vein. The guide wire 400 may pass through the port passage 101 of the port 110 and the needle passage 201 of the guide needle 200 and may be inserted into the blood vessel V.

6 is a configuration diagram showing a catheter insertion kit according to a modified embodiment of the present invention.

As shown in FIG. 6 , in the conduit insertion kit 10 according to the modified example of the present invention, a guide tube 113 may be provided in the through hole 111c of the port body 111 .

The guide tube 113 may guide a movement path for guiding the guide wire 400 inserted into the holder passage 104 of the holder 120 to the needle passage 201 of the guide needle 200 . To this end, the guide tube 113 may extend from the through hole 111c toward the needle passage 201 of the guide needle 200 in a curvilinear manner.

In this way, when the guide wire 400 inserted into the port unit 100 is moved to the guide needle 200, the guide tube 113 guides the guide wire 400 of the port unit 100 to the guide needle 200. By guiding, the guide wire 400 inserted into the port unit 100 can pass through the guide needle 200 quickly and smoothly and move into the blood vessel V.

In particular, the inner diameter of the guide tube 113 may have a diameter that gradually decreases in a direction from the through hole 111c toward the outlet. The exit diameter of the guide tube 113 may be the same as or slightly larger than that of the guide wire 400 .

In this way, since the outlet diameter of the guide tube 113 is designed to be such that only the guide tube 113 can move, when blood is sucked from the guide needle 200, the blood sucked from the guide needle 200 is guided. Even if the blood passes through the tube 113 and moves to the syringe 300 , blood may not flow into the port side part 112 through the guide tube 113 .

7 is a block diagram illustrating a method for inserting an intravascular conduit according to an embodiment of the present invention.

As shown in FIG. 7, in the catheter insertion method 20 according to one aspect of the present invention, the guide wire 400 is quickly and accurately moved into the central vein of the jugular vein using the catheter insertion kit 10 described above. can make it

The catheter insertion method 20 may include a blood vessel puncture step (S100), a blood suction step (S200), a guide wire insertion and movement step (S300), and a catheter insertion step (S400).

In the blood vessel puncture step (S100), the guide needle 200 is inserted into the blood vessel V in a state where the above-described catheter insertion kit is placed on the treatment site. For accurate insertion of the guide needle 200 into the blood vessel V, the location of the blood vessel V is checked in advance through ultrasonic search before inserting the guide needle 200 into the blood vessel V.

In the blood suction step (S200), when the guide needle 200 is inserted into the blood vessel V, blood is sucked by applying a negative pressure to the guide needle 200 inserted into the blood vessel V. In order to maintain an accurate position of the guide needle 200 within the blood vessel V during suction, the position of the guide needle 200 within the blood vessel V is checked in real time through ultrasonic search.

In the guide wire insertion and movement step (S300), the guide wire 400 is inserted after blood is sucked into the punctured blood vessel V. At this time, since the guide wire 400 is maintained in a pre-inserted state in the guide needle 200, when blood aspiration is completed after puncture of the blood vessel V, the guide wire 400 monitors ultrasound through the guide needle 200. It can be quickly inserted into the blood vessel (V) under

In the step of inserting and moving the guide wire (S300), the guide wire 400 is moved to a target position within the blood vessel V (for example, a brachiocephalic vein). The location of the guide wire 400 in the blood vessel V may be confirmed in real time upon insertion through ultrasonic search.

In the conduit inserting step (S400), when the guide wire 400 is moved to the target position within the blood vessel V, the conduit is inserted along the guide wire 400 to the target position within the blood vessel V.

As described above, since the guide wire of the present invention can be quickly and accurately inserted into the blood vessel after blood vessel puncture, it is possible to shorten the operation time while reducing unnecessary procedures in jugular vein central venous catheterization. After aspirating blood through the guide needle, there is no change in the position of the needle that can occur in the conventional process of inserting the guide wire behind the syringe, real-time observation is possible with ultrasound during the guide wire insertion process, and when inserting the central venous catheter under ultrasound guidance , it can increase the success rate of one attempt, and it provides excellent advantages such as reducing complications caused by multiple jugular vein puncture, hematoma, puncture of the posterior jugular vein, and abnormal position of the guide wire. In addition, it can be applied not only to the jugular vein but also to all central veins in which a central venous catheter can be inserted, and can provide the above advantages even in central ductal catheterization and central venous catheterization without ultrasound.

The embodiments described above are only a few examples of the technical idea, the scope of the technical idea is not limited to the described embodiments, and within the scope of the technical idea by a person skilled in the art Various changes, modifications, or substitutions of will be possible, and all such implementations should be regarded as belonging to the scope of the present technical idea.

100: port unit 110: port
111: port body portion 111a: first coupler
111b: second coupler 111c: through hole
120: holder 121: holder body
122: holder mounting part 123: holder packing part
130: guide piece 131: guide slope
132: guide packing part 132a: packing hole
200: guide needle 300: syringe
400: guide wire

Claims (8)

a port unit provided with a port passage;
an induction needle coupled to the port unit, insertable into a blood vessel, and provided with a needle passage communicating with the port passage;
a syringe providing negative pressure to the port unit so that blood is sucked through the guide needle; and
A guide wire passing through the port flow path and the needle flow path and insertable into the blood vessel;
The port unit
A port and a holder coupled to the port so as to be supported on a side of the syringe,
the port
A port body having a first coupler to which the guide needle is coupled is formed at a front end, a second coupler to which the syringe is inserted at a rear end, and a through hole formed at an upper portion and providing the port passage; A port side portion connected to the upper part of the port body portion at a downward slope so as to communicate with the port side portion, and a guide tube extending curvilinearly from the through hole toward the induction needle in order to guide the guide wire inserted into the holder to the induction needle. including,
the guide tube
The guide needle protrudes obliquely from the inner circumferential surface of the port body portion in a direction in which the guide needle is inserted into the blood vessel.
The inner diameter of the guide tube is
Having a diameter that gradually decreases in the direction from the through hole to the outlet,
Conduit Insertion Kit. delete According to claim 1,
The port unit
In order to converge the guide wire inserted in the holder into the through hole, further comprising a guide piece mounted on the port side portion,
Conduit Insertion Kit. According to claim 3,
The guide section
a guide inclined portion having a conical inclined guide surface for guiding the guide wire toward an inner center, and having a guide passage formed through the through hole from the tip side of the inclined guide surface; and
Including a guide packing part in which an edge part is coupled to the guide inclined part so as to be in close contact with the inner diameter side of the port side part, and a packing hole located on the same extension line as the guide passage is formed in the center.
Conduit Insertion Kit. According to claim 1,
the holder
a holder body portion providing a holder passage for guiding the guide wire to the port; and
A holder mounting portion provided at the front end of the holder body portion and coupled to the port side portion through an outer diameter portion corresponding to an inner diameter portion of the port side portion,
Conduit Insertion Kit. According to claim 5,
the holder
When the holder mounting portion is coupled to the port side portion, further comprising a holder packing portion provided between the holder body portion and the holder mounting portion so as to be in close contact with an end of the port side portion.
Conduit Insertion Kit. delete delete

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