WO2018174421A1

WO2018174421A1 - Pigtail catheter having washing function

Info

Publication number: WO2018174421A1
Application number: PCT/KR2018/002334
Authority: WO
Inventors: 조영준
Original assignee: 인제대학교 산학협력단
Priority date: 2017-03-23
Filing date: 2018-02-26
Publication date: 2018-09-27

Abstract

The present invention comprises: a body which has a hollow formed therein along the forward/backward longitudinal direction and a plurality of through-holes formed at the closed front side thereof, blood or body fluids being introduced into the hollow through the through-holes; a wire embedded inside the hollow of the body and having self-elasticity; and a foreign substance removal member disposed at the front end of the wire, positioned at the front end of the hollow of the body, and cleaning the inside of the hollow of the body while being drawn and moved backward by the wire selectively moved backward by a user's manipulation. Therefore, the present invention has the effect of easily removing the clogging of a pigtail catheter and reducing the risk of bacterial infection.

Description

Pigtail catheter with cleaning function

The present invention relates to a pigtail catheter having a cleaning function, and more particularly, it is possible to selectively remove foreign substances generated in the drainage tube discharging blood or body fluids out of the body over time, thereby preventing clogging of the drainage tube. It relates to a pigtail catheter with a cleaning function.

Generally, drainage tube or drainage catheter is a multipurpose catheter for draining extraneous or harmful body fluids into the body caused by a disease or accident in vitro. It is used for percutaneous transhepatic biliary drainage.

The PCN (Perocutanous nephrostomy) is a method of draining urine by inserting a tube directly into the kidney through the side.

In addition, percutaneous catheter drainage (PCD), called percutaneous catheter drainage, should be drained in vitro because it does not disappear even when prescribed antibiotics as an abscess. After passing the tube through the skin to the liver abscess, a catheter is placed in the liver abscess. It is a way to discharge.

On the other hand, percutaneous transhepatic biliary drainage (PTBD), a percutaneous transhepatic biliary drainage, refers to a procedure in which a bile that cannot be normally drained by being inserted into the biliary tract in the liver by inserting a drainage tube in vitro using a fluoroscopic image of radiation. This procedure is performed when the bile duct becomes narrow and normal discharge is difficult.

In general, in transdermal biliary biliary drainage, a fluoroscopic image of the drainage tube is inserted into the biliary tract after the procedure, and the bile flows through the drainage tube to confirm that the drainage is good. You will see the progress. The sooner a patient's symptoms improve, the faster the treatment of the disease, and over time, common invasive procedures, that is, common to all procedures performed for therapeutic or diagnostic purposes, even if harming the patient's body. Increased chances of infection, a major complication. In the case of biliary drainage, the risk of infection increases because the bile itself is already infected or contaminated by intestinal bacteria. Therefore, the development of a catheter that can drain bile quickly and efficiently is required.

As an important treatment tool used in various drainage as described above, so-called Pigtail catheter is used, and the peak tail catheter forms a round annular shape in which the end of an elongated tube is curled. A plurality of drainage holes are formed that can drain.

Such a conventional pigtail catheter has a variety of structures for improving the drainage of bile, as described in Korean Patent Publication No. 10-2012-0041067.

However, the conventional pigtail catheter is a problem that the drainage, fibrous material, protein or cells are aggregated in the hollow or drainage hole to generate foreign matter, preventing the drainage hole and the hollow in the tube to prevent smooth drainage. . In order to solve this problem, the pigtail catheter was washed to drain the water smoothly. However, the pigtail catheter must be separated from the main body to be cleaned, and there is inconvenience in the procedure, and the outside air in the process of separating the pigtail catheter from the main body. There is a problem that can cause pneumothorax due to the air introduced into the inside.

It is an object of the present invention to provide a pigtail catheter which can easily resolve the hollow blockage, reduce the risk of infection of hollow internal bacteria and improve the prognosis after treating the patient.

Pigtail catheter equipped with a washing function according to the present invention is formed inside the hollow in the longitudinal direction before and after, the closed front side drain pipe formed with a plurality of through holes for introducing the blood or body fluid into the hollow; A wire embedded in the hollow of the drainage tube, the wire having its own elasticity, and provided at the front end of the wire, positioned at the hollow front end of the drainage tube, and drawn by the wire selectively moved rearward by a user's manipulation It includes a foreign material removal member for cleaning the inside of the hollow while moving to the drain.

And a pigtail catheter with a cleaning function according to the present invention is connected to the rear end of the drain pipe, the transfer part is formed to pass through the transfer flow path for blood or body fluids to pass through the drain pipe, the transfer flow path is in communication with the transfer path A main body including a drainage part for discharging blood or body fluid discharged to a flow path to the outside, and is provided in the wire and positioned in the transport flow path, and the drainage flows into one end of the main body through the drainage pipe and is transferred to the transport flow path. A transfer preventing member which serves to prevent blood or body fluid from being transferred to the other end of the main body and simultaneously prevents foreign air inflow when foreign substances are removed, and is provided in the main body adjacent to the drainage part, Selectively opening and closing the drainage part while slidingly moving forward and backward from the main body It may further comprise a drainage portion opening and closing member.

At this time, the front end of the main body according to the present invention is connected to the drainage pipe is formed, the rear end of the main body is formed with a coupling portion for screwing the handle member, the drainage portion to the front side of the front end of the main body It is preferably formed to be bent.

And the pigtail catheter with a washing function according to the present invention may further include a handle member is cylindrically screwed to the rear end of the drainage pipe or the rear end of the transfer portion, the rear end of the wire is fixed to the inner peripheral surface eccentrically coupled.

In addition, the upper end of the main body according to the present invention is formed with a moving groove for sliding the drain opening and closing member, the lower portion of the drain is provided in the intermittent groove for regulating the slide movement of the drain opening and closing member, It is preferable that the moving field groove and the interruption groove communicate with each other.

The drainage opening and closing member according to the present invention is a body which selectively opens and closes the drainage while moving in the movement field groove, and is provided on the outside of the movement field groove spaced apart from the body and the operator to slide the body And a gripping portion for holding, and a connecting portion for integrally connecting the body and the gripping portion.

In addition, the distance (D) between the handle member and the transfer preventing member according to the present invention is preferably formed longer than the distance (d) between the end of the drain pipe and the through hole formed adjacent to the main body.

And the wire according to the invention is made of any one material of metal or synthetic resin.

In addition, the foreign material removing member according to the present invention may be provided in a spherical, triangular pyramid, polyhedral having elasticity, provided in the form of a brush, provided in the form of a coil spring, or a plurality of plates arranged at regular intervals. .

Pigtail catheter equipped with a cleaning function according to the present invention is to clean the inside of the drainage tube to prevent clogging by foreign substances to increase the period of use of the drainage tube, reduce the risk of bacterial infection by removing the foreign matter inside the drainage tube, remove foreign substances The member can be cleaned without being separated from the main body, thereby increasing convenience and preventing external air from flowing into the body in the reverse direction through the main body and the through hole.

1 is an exemplary view showing a pigtail catheter according to an embodiment of the present invention.

Figure 2 is an exemplary view showing a state having a main body provided with a transfer part and the drainage portion in the drainage tube according to an embodiment of the present invention.

Figure 3 is an exemplary view showing a state in which the deformed foreign matter removing member is mounted on one end of the wire according to an embodiment of the present invention.

4 is a view illustrating a state in which foreign matter in the drainage tube is discharged to the outside of the main body through the transfer unit according to an embodiment of the present invention.

5 is an enlarged view of the drain opening and closing member according to an embodiment of the present invention.

Figure 6 is an exemplary view showing a foreign material removing member of the spherical and triangular pyramid form according to an embodiment of the present invention.

Figure 7 is an exemplary view showing a debris removal member in the form of a brush according to an embodiment of the present invention.

8 is an exemplary view showing a foreign matter removing member of the coil spring form according to an embodiment of the present invention.

9 is an exemplary view showing a foreign material removing member in the form of a hook according to an embodiment of the present invention.

10 is an exemplary view showing a foreign substance removing member of a complex form according to an embodiment of the present invention.

Pigtail catheter with a washing function according to an embodiment of the present invention forms a hollow in the longitudinal direction before and after the inside, a plurality of through holes for introducing the blood or body fluid into the hollow in the closed front side A drain tube, a wire embedded in the hollow of the drain tube, having a self-elasticity, and provided at a front end of the wire, positioned at the hollow front end of the drain tube, and selectively moving rearward by a user's operation Including a foreign material removal member for cleaning the hollow inside of the drainage tube while moving backward by the wire, the operation of the wire can easily eliminate the blockage, reduce the risk of infection of the hollow internal bacteria and treat the patient It is a pigtail catheter that improves prognosis.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all of the technical idea of the present invention, these are equivalent to replaceable at the time of the present application It should be understood that there may be variations.

The present invention is mounted on the body, it is possible to selectively remove foreign substances (blood or cell aggregates) generated in the pigtail catheter as time passes during the drainage process for discharging blood or body fluid out of the body, thereby preventing clogging of the pipe It relates to a pigtail catheter to prevent and maintain a clean pipe, referring to the drawings as follows.

Pigtail catheter 100 with a cleaning function according to an embodiment of the present invention with reference to FIGS. 1 to 10 is to clean the drainage tube without separating from the body while improving the drainage function of the body fluid in the organ of the human body, It includes a drain pipe 120, a wire 130, a foreign material removing member 140, the main body 110, the transfer preventing member 150, the drain opening and closing member 160, the handle member 170 It may further include.

First, as shown in Figures 1 and 2, the drainage pipe 120 is formed of a tube body formed inside the hollow 120a in the longitudinal direction before and after, the front end of the drainage pipe 120 is closed, the rear end It is possible to fasten a drainage bag for accommodating blood or body fluid by forming a thread on the outer circumferential surface at the rear in the open state.

At this time, the front side of the drain pipe 120 may be wound in a ring shape to form a pigtail, and a plurality of through holes 122 for introducing blood or body fluid into the hollow 120a at a predetermined distance from the closed front end. ).

Therefore, the drainage pipe 120 is the blood or body fluid of the body is introduced into the hollow (120a) through the through hole 122, the blood or body fluid is drained into the drainage bag (guide) of the hollow (120a) .

And the wire 130 is inserted into the hollow inside of the drainage pipe 120, so that the material can be accommodated in front of the drainage pipe 120 wound in a ring shape, the material is made of metal or synthetic resin and have flexibility desirable.

In addition, the front end of the wire 130 is provided with a foreign material removing member 140, the foreign material removing member 140 is provided in the front end of the wire 130, the hollow front end of the drain pipe 120 Located in, the rear of the drainage pipe 120 to be discharged from the hollow by pressing the foreign matter present in the hollow of the drainage pipe 120 while being moved to the rear by the wire 130 to move backwards to the rear Clean the inside of the hollow.

In addition, the main body 110 includes a transfer part 111 and a drainage part 115, and the transfer part 111 has foreign substances generated in the drainage pipe 120 when the blood or body fluid and the drainage pipe 120 to be described later are washed. The conveying flow path 111a is formed to pass through, and the drainage part 115 communicates with the conveying flow path 111a and serves to discharge blood or body fluids transferred to the transport flow path 111a to the outside.

The front end of the main body 110 is connected to the drainage pipe 120, the front end of the main body 110 is preferably formed with a connecting portion (110a) is connected to the drainage pipe 120, the rear end of the main body 110 In the handle member 170 to be described later it is preferable that the coupling portion 110b for screwing is formed, the drainage portion 115 through which the blood or body fluid is discharged to the front end side upper surface of the main body 110 to the outside It is preferably formed to be bent.

Inside the main body 110 and the drainage pipe 120 is embedded with a wire 130 having its own elasticity, the wire 130 is the material so that it can be received in front of the main body 110 wound in a ring shape It is preferred to be made of this metal or synthetic resin and to have flexibility.

The foreign material removing member 140 is provided at the front end of the wire 130, and the foreign material removing member 140 is provided at the front end of the hollow 120a of the drain pipe 120, and is selectively rearward by a user's operation. The drainage pipe (10) is driven by the wire 130 to move backwards and is pushed backward while pressing the foreign matter present in the hollow (120a) of the drainage pipe 120 to be discharged from the hollow (120a) of the drainage pipe (120) The hollow inside of 120 is cleaned.

6 to 9, the foreign material removing member 140 may have any one of spherical, streamlined, triangular pyramid, and polyhedral shapes, or may have a brush shape or a coil spring shape. It may be configured to be arranged at intervals, it is preferable that the foreign matter removing member 140 is made of silicone, rubber, synthetic resin foam to have elasticity in close contact with the inner peripheral surface of the hollow (120a) of the drainage pipe (120).

At this time, the foreign material removing member 140 with reference to FIG. 10 may be formed in a complex such as an elastic material and a brush or coil spring shape.

In addition, the transfer prevention member 140 is provided on the wire 130 embedded in the main body 110 and the drain pipe 120 with reference to FIGS. 2 to 5, and the transfer preventing member 140 is the main body. It is preferable to locate in the conveyance flow path 111a of the 110. The transfer preventing member 140 is introduced into one end of the main body 110 through the drainage pipe 120 to prevent blood or body fluids transferred to the transfer flow path 111a from being transferred to the other end of the main body 110. It plays a role. The transfer preventing member 140 is preferably made of silicone, rubber, synthetic resin foam having elasticity to be in close contact with the inner peripheral surface of the transfer passage (111a).

The main body 110 is provided with a drain opening / closing member 160 adjacent to the drain 115, and the drain opening / closing member 160 slides forward and backward to the main body 110 by an external force. While acting to selectively open and close the drain portion (115).

The drainage opening and closing member 160 includes a body 162, a gripper 164, a connecting portion 166, the upper end of the body 110, the drainage opening and closing member 160 is a slide movement Groove 110c is formed.

An intermittent groove 115a for controlling the slide movement of the drainage opening / closing member 160 is provided at a lower portion of the drainage portion 115 through which the blood or body fluid flowing into the main body 110 is discharged through the drainage pipe 120. It is preferably provided, the moving field groove (110c) and the intermittent groove (115a) is preferably in communication.

The body 162 slides the drainage portion 115 selectively while slidingly moving in the movement field groove 110c, and the grip portion 164 is spaced apart from the body 162 to allow the movement of the movement field groove 110c. It is provided on the outside, the gripping portion 164 is a portion that the operator or operator grips to slide the body 162, the body 162 and the gripping portion 164 by the connecting portion 166 It is connected in one piece.

When the drainage opening and closing member 160 discharges the blood or body fluid flowing into the body 110 through the drainage tube 120, the drainage opening and closing member 160 opens the drainage portion 115 to open the drainage portion 115. The blood or body fluid is discharged to the outside of the main body 110 through the blood or body fluid introduced into the main body 110 through the main body by the transfer preventing member 150 located in the transfer flow path (111a) Flowing to the other end of the 110 becomes intermittent.

The drainage opening and closing member 160 closes the drainage portion 115 when the foreign matter inside the drainage pipe 120 is washed and pressurized by the foreign matter removing member 140 to the inside of the main body 110. It prevents the introduced foreign matter is discharged to the drainage portion 115 so that the foreign matter introduced into the main body 110 is discharged to the other end of the main body 110.

The rear end of the other end of the main body 110 is provided with a handle member 170, the handle member 170 is preferably screwed to the coupling portion (110b) of the main body (110). Preferably, the handle member 170 has a cylindrical shape in which one side is sealed, and a rear end of the wire 130 is fixedly coupled to one side of the sealed inner circumferential surface. The foreign matter removing member 140 connected to the wire 130 is moved from the drainage pipe 120 to the main body 110 by pulling the handle member 170 from the main body 110 and pulling the drainage pipe ( 120 is moved to the body 110 while pressing the foreign matter inside.

The distance D between the handle member 170 and the transfer preventing member 150 is greater than the distance d between the end of the drain pipe 120 and the through hole 122 formed adjacent to the main body 110. It is preferably formed long. The distance d between the end of the drainage pipe 120 and the through hole 122 formed adjacent to the main body 110 is greater than the distance D between the handle member 170 and the transfer preventing member 150. When it is long, the inside and outside of the drainage pipe 120 is blocked by the transfer preventing member 150 until the foreign matter removing member 140 completely passes through the through-hole 122 in the process of moving backward when the foreign matter is removed. Since the outside air through the hole of the coupling portion (110b) is prevented from flowing into the body in the reverse direction through the through-hole 122 through the drainage pipe (120).

Therefore, the inside of the drainage tube 120 is cleaned to prevent the drainage tube 120 from being clogged by foreign substances, thereby increasing the period in which the drainage tube 120 can be used, and reducing the risk of bacterial infection by removing the foreign matter inside the drainage tube 120. The handle member 170 may be cleaned in a state in which the handle member 170 is not completely separated from the main body 110, thereby increasing convenience, and external air is introduced into the body in the opposite direction through the drainage pipe 120 and the through hole 122. Can be prevented.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims

A drainage tube formed inside the hollow in the longitudinal direction before and after, and formed in the closed front side with a plurality of through holes for introducing blood or body fluid into the hollow;

A wire embedded in the hollow of the drainage tube and having a self elasticity; And

A foreign material removal member provided at the front end of the wire and positioned at the hollow front end of the drain pipe, and cleaning the hollow inside of the drain pipe while being moved backward by the wire which is selectively moved backward by a user's operation; Pigtail catheter with a washing function comprising.
The method according to claim 1,

A transfer part connected to a rear end of the drainage pipe and formed so that a transfer passage through which the blood or body fluid is transferred is passed through the drainage tube, and a drainage portion communicating with the transfer passage and the blood or body fluid transferred to the transfer passage to the outside; A main body comprising;

It is provided in the wire and located in the transfer flow path, during the drainage to prevent the blood or body fluids flowing into one end of the main body through the drainage pipe and transferred to the transfer flow path to the other end of the main body and at the same time to remove foreign substances A transfer preventing member having two functions of preventing air inflow;

And a drainage opening / closing member provided in the main body adjacent to the drainage portion and including a drainage opening / closing member for selectively opening and closing the drainage portion by slidably moving from the main body to the front end and the rear end by an external force.
The method according to claim 2,

The front end of the main body is formed with a connecting portion to which the drainage pipe is connected, the rear end of the main body is formed with a coupling portion for screwing the handle member, the drainage portion is formed to be bent to the outside of the front end side of the main body Pigtail catheter with a cleaning function characterized in that.
The method according to claim 2,

Pigtail catheters having a washing function comprising a handle member is cylindrically screwed to the rear end of the drainage pipe or the rear end of the transfer portion, the rear end of the wire is fixed to the inner peripheral surface eccentrically coupled to one side.
The method according to claim 2,

The upper end of the main body is formed with a movement groove for sliding the drain opening and closing member,

The lower part of the drainage portion is provided in the intermittent groove for regulating the slide movement of the drainage opening and closing member,

Pigtail catheter with a cleaning function, characterized in that the moving groove and the intermittent groove is in communication.
The method according to claim 5,

The drainage opening and closing member,

A body for selectively opening and closing the drainage portion while moving in the movement field groove;

A gripping part spaced apart from the body and provided at an outer side of the moving field groove and held by an operator to slide the body;

Pigtail catheter having a cleaning function including a connecting portion for integrally connecting the body and the gripping portion.
The method according to claim 2,

Pigtail catheter with a cleaning function, characterized in that the distance (D) between the handle member and the transfer preventing member is formed longer than the distance (d) between the end of the drain pipe and the through hole formed adjacent to the main body .
The method according to claim 1,

The wire is

Pigtail catheter with a cleaning function, characterized in that made of any one material of metal or synthetic resin.
The method according to claim 1,

The foreign material removing member

Pigtail catheter with a washing function, characterized in that provided with a spherical, triangular pyramid, polyhedral having elasticity.
The method according to claim 1,

The foreign material removing member

Pigtail catheter with a cleaning function, characterized in that provided in the form of a brush.
The method according to claim 1,

The foreign material removing member

Pigtail catheter with a cleaning function, characterized in that provided in the form of a coil spring.
The method according to claim 1,

The foreign material removing member

Pigtail catheter with a cleaning function, characterized in that the plurality of plates provided in a form arranged at regular intervals.