KR20210001149A - Drainage catheter - Google Patents

Abstract

The present invention relates to a catheter for drainage that can facilitate the downward movement and drainage of bile.
In addition, the present invention is provided integrally with the drain pipe having a plurality of drain holes perforated and the drain pipe, the inner flow path is independent from the inside of the drain pipe, and a balloon connection with a discharge hole perforated on the outside to communicate the inside flow path with the outside It is provided to surround the outer portion of the pipe and the drain pipe, and includes a balloon part sealing the discharge hole, and the balloon part is inflated by the fluid provided to the balloon part through the discharge hole by moving to the inner flow path of the balloon connector It features.

Description

Drainage catheter {DRAINAGE CATHETER}

The present invention relates to a catheter for drainage, and more particularly, to a catheter for drainage capable of smoothly moving and draining bile downward.

In general, a drainage catheter is used as a medical procedure to relieve symptoms by discharging and removing liquids such as concentrated fluid from the lesion site in the abdominal cavity of the human body, and is simply called a drainage. Also referred to as a pigtail (pig-tail) conduit or the like.

These drainage catheters are mainly used for Percutaneous Catherter Drainage (PCD), percutaneous interstitial tobacco liquid surgery, and most of them are used to discharge stagnant bile or concentrated fluid from the lesion site in the bile duct.

For reference, the bile ducts are bile (digestive fluid) produced and discharged from the liver or temporarily stored and concentrated in the gallbladder (i.e., gallbladder) after being produced and secreted by the liver, and then discharged from the time when food enters the duodenum toward the duodenum. It refers to the sending ducts as a whole, consisting of the liver duct, the gallbladder duct, and the general bile duct, and is also called the biliary tract, the hydrobiliary duct, and the gallbladder duct.

Republic of Korea Utility Model Registration No. 20-0286108 discloses a conventional catheter assembly.

Conventional drainage catheter has a pigtail shape that is rolled in a circular shape and has a pigtail-shaped section with a plurality of drainage holes perforated, a long, thin and flexible tube for insertion, and at the rear end of the insertion tube. It is composed of a hub body that is coupled and has a locking means, and one end is fixed to the pigtail-shaped section of the insertion tube, extends through the inner hole of the insertion tube, and then is coupled to the locking means of the hub body. do.

And, the action is that the pigtail-shaped section is inserted into the bile duct in the human body with the pigtail-shaped section unfolded, so that the pigtail-shaped section is positioned to match the lesion site in the bile duct, and then the operator is on the hub body located outside. When the fine thread is pulled by operating the locking means, the pigtail-shaped section becomes a pigtail shape, so that it will not be removed from the lesion site afterwards, and a plurality of drainage holes are intensively arranged for the lesion site, so that bile or concentrate can be smoothly introduced, As it is maintained in the relevant state, bile or concentrated fluid in the lesion area is introduced through the drainage holes on the pigtail-shaped section, flows inside the insertion tube and inside the hub body, and then is discharged to the outside and removed. Loosen it to make it free to change the shape of the pigtail-shaped section, then remove it from the human body.

In addition, at the rear end of the hub body, a drainage storage bag (or container) for storing the discharged liquid or a syringe for forced suction of the liquid is used in combination, and the flexible insertion tube is initially made into a solid straight shape. A guide wire inserted into the insertion tube for insertion into the human body is inserted from the outside through the hub body.

Meanwhile, some or all of the bile ducts in the human body are frequently obstructed or constricted to block the circulation of bile, and there are many situations in which bile cannot be discharged toward the duodenum.

Therefore, when such a bile duct atresia or stenosis occurs, balloon dilatation or stent insertion is performed as a way to communicate the internal passage by expanding the bile duct of the constricted portion.

Balloon dilatation is performed by inserting a balloon into the constriction area and then inserting a pressurized fluid such as air from the outside into the inserted balloon so that the constriction area is expanded and the inflated state is maintained for a certain period of time. It is a procedure to reduce the balloon by draining the pressurized fluid and then take it out.

In addition, in stent insertion, a stent, which is a cylindrical mesh structure having elastic force, is compressed by applying an external force, and is inserted into a constricted area in the human body using a separate pusher, and then expanded outward by its own elastic force. It is a procedure in which the constricted area is expanded by pushing it outward while restoring to its original shape, and maintained in that state for a certain period so that the constricted area is smoothly expanded and then taken out of the body.

However, in most cases, when a stricture or obstruction occurs in the bile duct, bile or thick fluid is stagnant in the upper part of the blockage, and thus, the procedure is complicated and difficult, and costs and time consuming as the conventional dilation and drainage must be performed separately. There are problems such as excessive causes, impairing the safety of the procedure, and causing the hassle of preparing various types of surgical instruments.

Accordingly, the present invention has been conceived to solve the above problems, and an object of the present invention is to provide a catheter for drainage that can expand the constricted portion of the bile duct without using additional surgical tools.

The drainage catheter according to an embodiment of the present invention is provided integrally with a drainage tube having a plurality of drainage holes perforated therein, and the drainage tube, wherein the inner channel is independent from the inside of the drainage tube, and the inner channel is communicated with the outside at the outer side. The discharge hole is provided to surround the perforated balloon connection pipe and the outer part of the drain pipe, including a balloon part sealing the discharge hole, and the fluid provided to the balloon part through the discharge hole by moving to the inner flow path of the balloon connection pipe It characterized in that the balloon is inflated by.

The drain pipe may form a drain passage in communication with the drain hole, and may include a drain syringe connection part communicating with the drain passage at one end thereof.

The drainage pipe may be made of a flexible synthetic resin material.

The balloon connection pipe may be integrally formed on one side of the outer circumference of the drain pipe, and may include a balloon pipe syringe connection part communicating with the flow path at an end thereof.

The balloon part may be provided in the circumferential length of the drain pipe, and the plurality of drain holes may be respectively located on both sides of the drain pipe with respect to the balloon part.

The balloon connector may be a flexible synthetic resin material.

The balloon part may be made of any one or more of rubber, silicone, and synthetic resin.

According to the present invention, there is an effect of expanding the constricted portion of the bile duct by inflating the balloon provided in the drainage pipe.

According to the present invention, a drainage hole is added so that drainage holes are arranged on both sides of the drainage tube based on the balloon part provided in the drainage tube, so that the bile duct can smoothly inflow bile or concentrated liquid from the upper and lower parts based on the stricture area. There is.

According to the present invention, the balloon connector is integrally formed on one side of the outer circumference of the drain tube to provide fluid to the balloon, thereby minimizing the change in the size of the drain tube.

1 is a cross-sectional view showing the inside of a catheter for drainage according to an embodiment of the present invention in cross-section.
2 is a perspective view of a catheter for drainage according to an embodiment of the present invention.
3 is a use state diagram showing that the catheter for drainage according to an embodiment of the present invention is inserted into the bile duct.

Hereinafter, a catheter for drainage according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The terms or words used in this specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventor may appropriately define the concept of terms in order to describe his own invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention based on the principle that there is. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention and do not represent all the technical ideas of the present invention, and thus various alternatives that can be substituted for them at the time of application It should be understood that there may be equivalents.

In the drawings, the size of each component or a specific part constituting the component is exaggerated, omitted, or schematically illustrated for convenience and clarity of description. Therefore, the size of each component does not fully reflect the actual size. If it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, such description will be omitted.

1 is a cross-sectional view showing the inside of the catheter for drainage according to an embodiment of the present invention in cross-sectional view, and FIG. 2 is a perspective view of the catheter for drainage according to an embodiment of the present invention.

1 and 2, the catheter for drainage according to an embodiment of the present invention is provided integrally with the drainage pipe 100 having a plurality of drainage holes 110 perforated therein, and the inside The flow path 211 is independent of the inside of the drain pipe 100 and the discharge hole 210 is perforated on the outer side of the balloon connection pipe 200 and the drain pipe 100 to communicate the inside flow path 211 with the outside. Doedoe provided to surround the outer portion, including a balloon portion 300 sealing the discharge hole 210, the balloon through the discharge hole 210 by moving to the inner flow path 211 of the balloon connector 200 The balloon part 300 is inflated by the fluid provided to the part 300.

The drain pipe 100 may have a tube shape made of a flexible synthetic resin material, and may form a drain passage 120 communicating with a plurality of drain holes 110 therein.

One end of the drainage pipe 100 may form a drainage syringe connection 130 in communication with the drainage passage 120, and the other end of the drainage pipe 100 is formed in a conical shape whose diameter gradually decreases so that it can be smoothly inserted into the human body. Can be.

The drainage syringe connection part 130 may be a passage for discharging bile or concentrated liquid introduced through the drainage hole 110, and a hub 400 is installed on the drainage syringe connection part 130 to move the other end of the drainage pipe 100 And it is also possible to manipulate the transformation into a shape of a pig tail.

That is, the hub 400 may be installed in communication with the drainage syringe connection unit 130 to transfer and discharge the drained liquid inside and form a locking means 410 outside. In addition, the hub 400 may be smoothly inserted into the drainage syringe connection unit 130 through the induction iron core at the beginning of the procedure. In addition, at the open end of the hub 400, a storage unit (not shown) for storing liquid discharged from the open end of the hub 400, a syringe (not shown) or an open end for forcibly inhaling the liquid. A plug (not shown) for blocking or an adapter (not shown) for connecting with an external device may be combined. In addition, a fine thread (not shown) may be installed in the locking means 410 of the hub 400 to be connected to the other end of the drain pipe 100. When the fine thread is pulled by operating the locking means 410 installed with the fine thread to one side, the other end of the drain pipe 100 can be formed to be curled in a pigtail shape, and when the fine thread is released by operating the other side, the drain pipe 100 The other end of the can be freely changed in shape.

The balloon connector 200 may be made of a flexible synthetic resin that is the same material as the drain tube 100, and is integrally formed with the drain tube 100 on one side of the outer circumference of the drain tube 100, and an internal flow path 211 at the end It may include a balloon tube syringe connection 220 in communication with.

In this way, as the balloon connector 200 is integrally formed on one side of the outer circumference of the drainage tube 100, the increase in the size of the drainage tube 100 by the balloon connector 200 can be minimized, so that the drainage tube 100 It can be prevented from impeding or difficult to perform procedures such as inserting the biliary tract into the human body.

A pressurized fluid providing unit (not shown) that provides pressurized fluid such as air and water may be connected to the balloon tube syringe connecting unit 220, and the pressurized fluid provided from the pressurized fluid providing unit is an inner flow path of the balloon connecting tube 200 ( It may be discharged through the discharge hole 210 by moving along 211).

The balloon part 300 may be made of any one or more of rubber, silicone, and synthetic resin, and may be formed to seal the discharge hole 210 so as to expand and swell by the pressurized fluid discharged from the discharge hole 210.

The balloon part 300 is formed separately from the drainage tube 100 and is coupled to the drainage tube 100 to surround a part of the outer circumference of the drainage tube 100, and is located in the length of the drainage tube 100 and the balloon connector 200 It includes a portion in which the discharge hole 210 is formed, and may be coupled to be wrapped.

Meanwhile, the plurality of drainage holes 210 perforated in the drainage pipe 100 may be disposed on both sides of the drainage pipe 100 based on the balloon part 300.

3 is a use state diagram showing that the catheter for drainage according to an embodiment of the present invention is inserted into the bile duct.

As shown in FIG. 3, a plurality of drainage holes 210 include bile in the upper and lower portions of the constriction S in the bile duct B in a state in which the drainage tube 100 is inserted into the bile duct B in the human body. A plurality of drainage holes 210 are formed in the upper and lower portions of the drainage tube 100, which are both sides of the balloon part 300 located in the length of the drainage tube 100 so as to smoothly flow in the drainage tube 100. 210) may correspond to the upper portion and the lower portion of the constricted portion (S) in the bile duct (B).

In a state in which the drainage tube 100 is inserted into the bile duct B, the balloon part 300 may be positioned to correspond to the constriction portion S. And when pressurized fluid is injected into the balloon part 300 to inflate the balloon part 300, the constriction part (S) in the bile duct (B) is artificially expanded by the expansion force of the balloon part 300 to lower the bile or thick liquid. You can move smoothly.

As described above, according to the present invention, there is an effect of inflating the balloon portion provided in the drainage pipe to expand the constricted portion of the bile duct to facilitate the movement of bile or concentrate.

In addition, according to the present invention, a drainage hole is added so that drainage holes are arranged on both sides of the drainage tube based on the balloon part provided in the drainage tube, so that bile or thickener in the upper and lower parts of the bile duct can be smoothly introduced. It works.

In addition, according to the present invention, the balloon connector is integrally formed on one side of the outer circumference of the drain tube to provide fluid to the balloon, thereby minimizing the change in the size of the drain tube.

As described above, the catheter for drainage according to the present invention has been described with reference to the illustrated drawings, but the present invention is not limited by the embodiments and drawings described above, and is generally in the technical field to which the present invention belongs within the scope of the claims. Various implementations are possible by those who have knowledge of.

100: drainage tube
110: drainage hole
120: double euro
130: drain syringe connection
200: balloon connector
210: discharge hole
211: Euro
220: connection
300: balloon part

Claims (7)

A drain pipe 100 having a plurality of drain holes 110 perforated;
A balloon provided integrally with the drainage pipe 100, wherein the inner flow path 211 is independent from the inside of the drainage pipe 100, and the discharge hole 210 is perforated on the outside to communicate the internal flow path 211 with the outside A connector 200; And
Doedoe provided to surround the outer portion of the drain pipe 100, the balloon portion 300 for sealing the discharge hole 210; Including,
Drainage, characterized in that the balloon part 300 is inflated by the fluid provided to the balloon part 300 through the discharge hole 210 by moving to the inner flow path 211 of the balloon connector 200 Dragon catheter. The method according to claim 1,
The drain pipe 100 forms a drain passage 120 communicating with the drain hole 110 therein, and includes a drain syringe connecting portion 130 communicating with the drain passage 120 at one end thereof. Catheter for drainage. The method according to claim 1,
The drainage pipe 100 is a catheter for drainage, characterized in that the flexible synthetic resin material. The method according to claim 1,
The balloon connector 200 is integrally formed on one side of the outer circumference of the drainage tube 100, and includes a balloon tube syringe connection 220 communicating with the flow path 211 at an end thereof. Catheter. The method according to claim 1,
The balloon part 300 is provided in the circumferential length of the drain pipe 100, and the plurality of drain holes 110 are respectively located on both sides of the drain pipe 100 with respect to the balloon part 300 A catheter for drainage, characterized in that. The method according to claim 1,
The balloon connector 200 is a drainage catheter, characterized in that the flexible synthetic resin material. The method according to claim 1,
The balloon part 300 is a catheter for drainage, characterized in that at least one of rubber, silicone and synthetic resin.

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