KR102220471B1 - Urinary foley catheter and manufacturing method - Google Patents

Abstract

The present invention relates to a foley catheter with an integral tube for urine discharge and a manufacturing method thereof, wherein foley catheter allows a balloon part used for fixing and separating the foley catheter having an integral tube for urine discharge to be rapidly expanded and contracted in the body, thereby reducing pain that can be inflicted to a patient during insertion and separation of a catheter, and being advantages for productivity improvement and quality management of release agent application operation and sealing tip molding operation.

Description

Foley catheter equipped with an integral tube for urinary drainage and its manufacturing method {URINARY FOLEY CATHETER AND MANUFACTURING METHOD}

The present invention allows the balloon part used to fix and separate the foley catheter provided with an integral tube for urinating in the body to rapidly expand and contract, thereby reducing pain that may be inflicted on the patient when the catheter is inserted and removed, It relates to a foley catheter having an integral tube for discharging urine, which is advantageous for improving productivity and quality control of a release agent application operation and sealing tip molding operation, and a method of manufacturing the same.

A foley catheter (catheter) for urine drainage refers to a soft tube used to discharge urine collected in the bladder by entering the bladder through the urethra in the body.

The conventional foley catheter for urine discharge is an integrated single tube by covering the outer circumferential surface of the urine discharge pipe, which has a partition wall formed between the capillary and the discharge passage for discharging urine introduced from the bladder through the urine inlet. , An air hole for communicating the capillary tube and the inside of the balloon part is formed.

Such a urine discharge foley catheter is provided with a hemispherical sealing tip that seals the discharge passage at the front end of the urine discharge pipe, enabling the urine discharge pipe, that is, the tube to be inserted more quickly into the body, and the expansion liquid (purified water , Distilled water, saline, etc.), the balloon part expands and the expanded balloon part is caught on the inner wall of the bladder to prevent the head part of the tube with the inlet from being removed from the bladder.When the urine is discharged, the expansion liquid inside the balloon part is removed. Remove the tube and use it with the balloon part contracted.

At this time, the balloon should be expanded and contracted quickly to reduce the patient's pain.

As can be seen in Registration Patent No. 10-0434720, etc., a conventional capillary tube has one circular air hole having a small cross-sectional area for injecting and discharging the expansion solution into the balloon part, making it difficult to rapidly inject and discharge the expansion solution. There is a problem.

This is due to the very thin structure of the flow path in the capillary tube connected to the air hole, which raises the need for a technology that enables rapid expansion and contraction of the balloon part as long as it does not interfere with the structure of a general urine discharge polycatheter. Has become.

In addition, the conventional foley catheter for urine discharge covers the outer circumferential surface of the urine discharge pipe with a covering material that forms the balloon part through double extrusion, and at this time, a release agent is applied to the corresponding part to prevent the covering material of the balloon part from being adhered to the outer circumferential surface of the urine discharge pipe. In the prior art, all of these releasing agent coating operations are performed manually, and not only the quality varies according to the skill of the operator, but also the defect rate is high due to inaccuracy of the releasing agent application length, etc., resulting in a problem of lowering productivity.

Furthermore, in order to integrate and combine the sealing tip with the front end opening of the tube, conventionally, a plastic cap filled with the raw material of the sealing tip was hardened by inserting the front end of the tube, and then the plastic cap was removed to form the sealing tip. Since the size (size) of the plastic cap changes as high temperature heat is applied during curing, there is a problem in that the plastic cap cannot be used semi-permanently and the plastic cap must be replaced after using a certain shot.

Accordingly, the present invention was devised to solve the above problems,

For rapid expansion and contraction of the balloon part, an air hole through which the expansion liquid for expanding and contracting the balloon part is injected and discharged is formed into a long hole type air hole or two or more circular air holes having a predetermined length in the longitudinal direction of the flow path,

Regardless of the operator's skill level, the releasing agent is applied by rotating the jig in which the front end of the urine discharge pipe is fixed so that the application of the release agent can be carried out more accurately and quickly.

An object of the present invention is to provide a poly catheter having an integral tube for discharging urine and a method of manufacturing the same, in which the sealing tip is formed with a molding tip made of a tempered glass material for semi-permanent use of the molding cap used for molding the sealing tip.

In order to achieve the above object, the poly catheter having an integrated tube for discharging urine according to the present invention,

A urine discharge pipe having a discharge passage in the longitudinal direction;

A capillary tube connected to an air hole formed through a side wall portion of the urine discharge pipe and having a flow path in a longitudinal direction along one side of the inner peripheral surface of the urine discharge pipe;

Covering the outer circumferential surface of the urine discharge pipe to be integrated, and forming a filling part spaced apart from the outer circumferential surface of the urine discharge pipe in a circumferential direction in a partial area before and after the air hole, including a balloon part for expansion that is expandable by the expansion liquid injected into the capillary tube Covering material; And

An integrated tube comprising a; sealing tip for sealing the front end opening of the urine discharge pipe,

The air hole is characterized in that it is a long hole type air hole or two or more circular air holes formed by cutting to have a predetermined length in the longitudinal direction of the flow path.

And the method of manufacturing a foley catheter having an integral tube for discharging urine according to the present invention,

In the method of manufacturing a foley catheter having an integral tube for discharging urine,

a) manufacturing a primary tube by extrusion molding a urine discharge pipe having a discharge path and a capillary tube forming a flow path;

b) drilling an air hole in the side wall portion of the urine discharge pipe to communicate with the flow path;

c) applying a releasing agent to some areas before and after the air hole;

d) manufacturing a secondary tube having a balloon part by double extrusion molding a covering material on the outer circumferential surface of the urine discharge pipe; And

e) sealing the front end opening of the discharge passage with a sealing tip to form an integral tube; including,

In the step b), a part of the side wall of the urine discharge pipe is cut to have a predetermined length in the longitudinal direction of the capillary tube to form a long-hole air hole or two or more circular air holes are drilled. .

Furthermore, in the method of manufacturing a foley catheter having an integrated tube for discharging urine according to the present invention,

The step c) includes fixing the primary tube to a jig so that the front end of the urine discharge tube is exposed, and then rotating the jig to apply a release agent.

In addition, in the method of manufacturing a foley catheter having an integral tube for discharging urine according to the present invention,

The step e) includes a process of removing the molding cap after curing the sealing tip by inserting the front end of the secondary tube into the hemispherical receiving portion of the molding cap filled with the sealing tip raw material,

The molding cap is characterized in that it is made of a tempered glass material.

Foley catheter having an integral tube for discharging urine according to the present invention and a method of manufacturing the same,

By adopting a long hole type air hole or two or more circular air holes through which the expansion liquid is injected and discharged by communicating between the flow path of the capillary tube and the filling part of the balloon part, rapid expansion and contraction of the balloon part is possible by increasing the cross-sectional area of the air hole. Reduce the patient's pain,

Through the application of the releasing agent using a rotary jig, the length and location of the section where the releasing agent is applied is always kept constant regardless of the skill level of the operator, reducing the defect rate, and at the same time forming the sealing tip using a molding cap made of tempered glass. By doing so, it is possible to use the molded cap semi-permanently, and there is an effect of improving productivity by maintaining high quality work.

1 is a cross-sectional view of a main part of a foley catheter having an integral tube for discharging urine according to the present invention.
Figure 2 is a block diagram showing a method of manufacturing a foley catheter having an integral tube for discharging urine according to the present invention.
Figure 3 is a view schematically showing the step of applying a release agent using a jig according to the present invention.
Figure 4 is a view schematically showing the sealing team forming step using the forming cap according to the present invention.
Figure 5 is a cross-sectional view for explaining the rod-shaped jig according to the present invention.

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and can have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood that all changes, equivalents, and substitutes included in the spirit and scope of the present invention are included.

In each drawing, the same reference numerals, in particular the number of tens and ones, or the same number of tens, ones, and alphabet indicate members having the same or similar functions, and unless otherwise specified, each of the drawings The member indicated by the reference number can be identified as a member conforming to these criteria.

In addition, the components in each drawing are expressed by exaggeratingly large (or thick) or small (or thin) or simplified the size or thickness in consideration of the convenience of understanding, but this limits the scope of protection of the present invention. It shouldn't be.

The terms used in the present specification are only used to describe specific embodiments (sun, 態樣, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In the present application, terms such as ~include~ or ~consist are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

The ~1~, ~2~, etc. described in the present specification will only be referred to to distinguish different constituent elements, and are not limited to the order of manufacture, and the names in the detailed description and claims of the invention It may not match.

In describing the foley catheter provided with an integrated tube for urine discharge according to the present invention, for convenience, if a rough or rough reference is specified with reference to FIG. 1, the direction in which gravity acts as the lower side, as it is seen The right and left are determined, and directions are specified and described in accordance with this standard in the detailed description and claims related to other drawings, unless otherwise specified.

Hereinafter, a poly catheter having an integral tube for discharging urine and a method of manufacturing the same according to the present invention will be described with reference to the accompanying drawings.

As shown in Figure 1, the poly catheter having an integrated tube for discharging urine according to the present invention,

A urine discharge pipe 10 having a discharge path 11 formed in the longitudinal direction;

A capillary tube 20 connected to an air hole 21 formed through a side wall of the urine discharge pipe 10 and having a flow path 22 formed in a longitudinal direction along one side of the inner circumferential surface of the urine discharge pipe 10;

Covering the outer circumferential surface of the urine discharge pipe 10 to be integrated, and forming a filling part 31 spaced apart from the outer circumferential surface of the urine discharge pipe 10 in a circumferential direction in a partial area before and after the air hole 21, the capillary tube A covering material 30 including a balloon part 32 for expansion which is expandable by the expansion liquid injected into (20); And

It is an integral tube comprising a; sealing tip 40 for sealing the front end opening of the urine discharge pipe 10,

The air hole 21 is characterized in that it is a long hole-type air hole 21a or two or more circular air holes 21b formed by cutting to have a predetermined length in the length direction of the flow path 22.

The urine discharge pipe 10, the capillary tube 20, and the covering material 30 are integral tubes, and for convenience of explanation, the urine discharge pipe 10 before the covering material 30 is extruded is used as a primary tube T1, The urine discharge pipe 10 in which the covering material 30 is double-extruded to the tube T1 is divided into a secondary tube T2 and described.

First, the urine discharge pipe 10 is extrusion-molded of a soft material such as silicone, rubber, etc., and the discharge passage 11 is formed through the longitudinal direction, and a plurality of the urine discharge pipes 10 are formed by penetrating the side wall on the side wall of the front end. An inlet 12 is provided, and a connector (not shown) capable of detaching a urine bag or the like is connected to the rear end.

This urine discharge pipe 10 is provided with a hemispherical (ruminus) sealing tip 40 that seals the front end opening of the discharge passage 11 at the front end of the inlet 12 to facilitate insertion of the urethra, and after insertion into the body In a state where 12 is fixed in the bladder, urine flowing into the inlet 12 is discharged to the outside of the body along the discharge path 11.

The capillary tube 20 is integrated into the discharge passage 11 of the urine discharge pipe 10 and formed together when the urine discharge pipe 10 is extruded to form a primary tube T1, and the discharge passage ( 11) and the partitioned flow path 22 is formed through, the front end of the flow path 22 is connected to the air hole 21 formed through the side wall of the urine discharge pipe 10, and the rear end is an injection port branched from the connector Connected to (not shown).

The capillary tube 20 is provided with a check valve on the injection port, and the expansion liquid is injected while the check valve is opened by coupling a syringe or the like to the injection port, and is injected through the flow path 22 and the air hole 21. After the balloon part 32 is expanded as the expansion liquid fills the filling part 31, the check valve is closed and the balloon part 32 is kept inflated when the syringe is removed, so that the expanded balloon part 32 becomes the bladder. It gets caught in the inner wall and prevents the catheter from being removed.

In addition, when the urine discharge is completed, the syringe or the like is recombined to the injection port, the expansion liquid is removed, the balloon part 32 is contracted to its original state, and the catheter can be removed and separated from the body.

At this time, the present invention has a long-hole type air hole (21a) to increase the cross-sectional area of the air hole (21) itself in the flow path (22) of a very narrow thickness so that the injection and discharge of the expansion liquid is made in a faster time, It enables rapid expansion and contraction of the balloon part 32.

In addition, in the present invention, two or more circular air holes 21b are provided in a row in the longitudinal direction of the flow path 22, so that the cross-sectional area required for rapid withdrawal of the expansion liquid can be increased, and if necessary, the long-hole air hole ( Two or more 21a) may be provided.

The covering material 30 is a soft material such as silicone and rubber, which is the same as the urine discharge pipe 10, and is coated on the outer circumferential surface of the urine discharge pipe 10 through double extrusion to form an integrated single secondary tube T2. .

At this time, a release agent 13 is applied to some areas before and after the air holes 21a and 21b, so that the coating material 30 of the corresponding area is adhered to the outer circumferential surface of the urine discharge pipe 10 when the coating material 30 is double-extruded. In this way, the inner space of the covering material 30 that is not adhered to the urine discharge pipe 10 forms the filling part 31, and a part of the covering material 30 spaced apart forms the balloon part 32.

The sealing tip 40 is a front opening (of the discharge path 11 and the flow path 22) of the secondary tube T2 in which the urine discharge pipe 10 (and the capillary tube 20) and the covering material 30 are double-extruded. It is to seal the front end hole), and consists of a hemispherical (ruminant) shape in which the outer diameter decreases toward the front end, and facilitates insertion of the catheter into the body, and the raw material of the sealing tip 40 is mixed with tungsten powder, etc. , It is possible to identify the insertion location of the catheter through X-rays.

Thus, a method of manufacturing a foley catheter having an integrated tube for discharging urine having the above configuration will be described.

As shown in Figures 2 to 4, the method of manufacturing a foley catheter having an integrated tube for discharging urine according to the present invention,

a) manufacturing a primary tube (T1) by extrusion molding a urine discharge pipe (10) having a discharge path (11) and having a capillary tube (20) forming a flow path (22) (S10);

b) drilling an air hole (21a) (21b) in the side wall portion of the urine discharge pipe (10) to communicate with the flow path (22) (S20);

c) applying a release agent 13 to some areas before and after the air holes 21a and 21b (S30);

d) manufacturing a secondary tube (T2) having a balloon portion (32) by double extrusion molding the coating material (30) on the outer peripheral surface of the urine discharge pipe (10) (S40); And

e) sealing the front end opening of the discharge passage 11 with a sealing tip 40 (S50); including,

In the step b) (S20), a part of the side wall of the urine discharge pipe 10 is cut to have a predetermined length in the longitudinal direction of the capillary tube 20 to form a long-hole type air hole 21a or two or more circular air holes. It characterized in that it consists of a process of drilling the hole (21b).

The a) step (S10) is a first tube (T1) forming step, and the urine discharge pipe 10 in which the capillary tube 20 is integrated in the discharge passage 11 is extruded through a general extruder.

The extruded primary tube T1 is automatically cut after being extruded to a predetermined length, separated and discharged.

The step b) (S20) is a step of drilling the air hole 21,

A part of the outer circumferential surface of the urine discharge pipe 10 through which the discharge path 11 passes by using a knife, etc. is cut to have a predetermined length in the longitudinal direction of the discharge path 11 to form a long hole type air hole 21a, or

Alternatively, a circular air hole 21b is formed by perforating two or more sidewalls using a perforator such as a needle.

At this time, two or more long-hole type air holes 21a may be formed to be spaced apart at regular intervals.

The step c) (S30) is a step of applying the release agent 13, and when the covering material 30 is double-extruded on the outer circumferential surface of the primary tube T1, the covering material 30 of the part where the release agent 13 is applied is 1 The filling part 31 and the balloon part 32 are formed in the corresponding part by preventing adhesion to the outer circumferential surface of the tea tube T1.

At this time, conventionally, since the release agent 13 was applied by hand, the quality is different according to the skill level of each worker, and even the same worker has a problem in that productivity is degraded due to a high defect rate due to a low accuracy due to the nature of the manual work.

Accordingly, in step c) (S30) of the present invention, the first tube (T1) is fixed to the jig 50 so that the front end of the urine discharge tube 10 is exposed, and then the jig 50 is rotated so that the release agent 13 It includes a process of applying.

The jig 50 used in step c) (S30) has a seating hole (not shown) corresponding to the outer diameter of the primary tube (T1), and rotates in both left and right directions around the primary tube (T1). It is installed as possible.

In addition, an application member 60 to which a release agent 13 is supplied is fixedly installed on an upper surface of the front end of the jig 50, and the upper surface of this application member 60 is fixed to the jig 50. While having a height that matches the lower side of the primary tube T1, it is fixed and installed at a predetermined distance from the jig 50 in consideration of the molding position of the balloon part 32.

In addition, the front and rear width of the upper surface to which the release agent 13 is supplied from the application member 60 is formed equal to the front and rear length of the balloon part 32, and thus, after fixing the primary tube T1 to the jig 50 When the jig 50 is rotated, the release agent 13 can be uniformly applied to the correct area.

At this time, the rotation of the jig 50 may be performed either manually by an operator or an automatic method using a motor or cylinder.

When the application of the release agent 13 to the first tube T1 is completed, the corresponding part is dried with an oven or the like.

The step d) (S40) is a step of forming a secondary tube (T2) by double-extruding the covering material 30 on the entire outer circumferential surface of the urine discharge pipe (10).

When the covering material 30 is double-extruded together with the urine discharge pipe 10, the covering material 30 is bonded to the outer circumferential surface of the urine discharge pipe 10 to be integrated, and at this time, the part where the release agent 13 is applied is the covering material 30 The urine discharge pipe 10 and the urine discharge pipe 10 are not adhered to each other, so that the space between them is lifted, and thus the spaced apart part forms the filling part 31, and a part of the covering material 30 covering the filling part 31 is a balloon part ( 32).

When the double extrusion through the covering material 30 is completed in this way, the end of the secondary tube T2 is cut to finish.

The e) step (S50) is a step of forming and curing the front end opening of the secondary tube T2 with the sealing tip 40.

The sealing tip 40 is made of a raw material such as solid silicone, liquid silicone, etc., for forming a hemispherical (ruminant) sealing tip 40,

In step e) (S50), the sealing tip 40 is hardened by inserting the front end of the secondary tube T2 into the hemispherical receiving portion 71 of the molding cap 70 filled with the sealing tip raw material 41. It includes a process of removing the molding cap 70.

At this time, the hemispherical receiving portion 71 has an inner diameter of the opening side equal to or smaller than the outer diameter of the secondary tube T2, and the inner diameter gradually decreases toward the tip,

After filling the sealing tip raw material 41 in the hemispherical receiving portion 71, if the front end of the secondary tube T2 is forcibly inserted into the hemispherical receiving portion 71, the sealing tip raw material 41 is It is inserted into the front end (more precisely, each front end of the discharge path 11 and the flow path 22) and is molded into a hemispherical shape, and when heat is applied by putting it into an oven, the sealing tip raw material 41 is hardened. It means that it is not hardened but is integrated while being soft and dried.) After that, when the molding cap 70 is removed from the front end of the secondary tube T2, it is sealed at the front end of the secondary tube T2. The tip 40 is integrated to complete the molding.

At this time, conventionally, the sealing tip 40 was molded using a plastic molding cap, but this plastic molding cap is a single-shot (disposable) member that does not have a long service life, and there is a hassle to replace it with a new plastic molding cap after use.

Accordingly, the molding cap 70 of the present invention is characterized in that it is made of a tempered glass material.

If the molding cap 70 made of a tempered glass material, especially transparent tempered glass is used, not only is it more advantageous to visually identify the inside of the molding cap 70 when the sealing tip 40 is cured, but also the hemispherical receiving portion ( There is an advantage in that the molding cap 70 can be used semi-permanently since there is no problem such as an increase or deformation of the inner diameter of 71).

Thereafter, when the connector with the injection port is attached to the rear end of the secondary tube T2 and connected, the fabrication of the foley catheter having an integrated tube for discharging urine is completed.

On the other hand, if the jig 50 having a seating hole in step c) (S30) is used, a uniform release agent 13 can be applied, but if the application range of the release agent 13 is wide, the first tube (T1) ) May be bent and the release agent 13 may not be accurately applied.

Accordingly, the present invention solves the above problems by applying a rod-shaped jig in step c) (S30).

The rod-shaped jig,

It has an outer diameter smaller than the inner diameter of the discharge passage 11 and extends to have a length longer than the application section of the release agent 13 and is inserted into the discharge passage 11 of the primary tube T1, and the air supply passage formed therein ( A core material 510 having 511 and an air discharge hole 512 formed on the side wall,

As an expandable soft material having elasticity in the direction of contraction, it is combined while surrounding the core material 510, and an air shell 521 is formed therein, and expands when air is injected to hold the inner circumferential surface of the primary tube T1. Giving the expansion tube 520,

A plurality of C-rings that are fitted to the outer circumferential surface of the expansion tube 520 and limit the expansion of the expansion tube 520 to a size corresponding to the inner diameter of the discharge path 11 when the expansion tube 520 expands Including 530.

In such a rod-shaped jig, the supply path 511 of the core material 510 is connected to a compressor, and the rod-shaped jig can be rotated by a motor or manually.

In addition, a flange 513 protrudes at a predetermined position at the rear end of the outer circumferential surface of the core material 510 by contacting the primary tube T1 when the core material 510 is inserted to limit the insertion depth of the core material 510.

The expansion tube 520 is a soft material of rubber, and is contracted when air is not filled in the air shell 521 so that the outer diameter of the expansion tube 520 is kept smaller than the inner diameter of the discharge path 11, and the core material 510 When the air is filled through the expansion tube 520, the expansion tube 520 expands and inflates, so as to be in close contact with the inner peripheral surface of the primary tube T1.

The C-ring 530 is a hard member that generates elastic force in the retracted direction, and when no external force is applied, the C-ring 530 is closed and its diameter decreases, and when an open external force is applied, the C-ring 530 ) Is widened as the diameter of the C-ring 530 widens, and the maximum diameter that is widened as the C-ring 530 corresponds to the inner diameter of the discharge path 11.

Therefore, when the core material 510 is inserted into the shear discharge path 11 of the primary tube T1 while the expansion tube 520 is contracted while the C-ring 530 is closed, the core material 510 is Insertion is easy, and at this time, the insertion depth of the core material 510 is limited to the flange 513, so that the length of the primary tube T1 fitted to the core material 510 is always maintained constant.

And when air is injected after the core material 510 is inserted, the expansion tube 520 expands and contacts the inner circumferential surface of the primary tube T1 to hold the primary tube T1, where the C-ring 530 has the maximum expansion diameter. By limiting, the primary tube T1 is fitted and fixed to the rod-shaped jig 50 without expansion of the primary tube T1 itself.

In this state, when the rod-shaped jig is rotated on the application member 60, the release agent 13 is accurately and at the same position and length applied to the first tube T1, that is, the front end of the urine discharge tube 10 The standard of the balloon part 32 can always be kept the same.

In addition, when the air filled in the air shell 521 is removed after the release agent 13 is applied, the core material 510 can be more easily removed from the discharge path 11 as the expansion tube 520 and the C-ring 530 are contracted. .

In the above description of the present invention, with reference to the accompanying drawings, a foley catheter having an integral tube for discharging urine has been mainly described, but the present invention allows various modifications, changes and substitutions by those skilled in the art, and such modifications, changes and substitutions Should be construed as belonging to the scope of the present invention.

10: urine discharge pipe 11: discharge path
12: inlet 13: release agent
20: capillary tube 21: air hole
22: euro 30: cladding material
31: filling part 32: balloon part
40: sealing material 41: sealing material raw material
50: jig 60: application member
70: molding cap 71: receiving portion
T1: Primary tube T2: Secondary tube

Claims (4)

delete In the method of manufacturing a foley catheter having an integral tube for discharging urine,
a) manufacturing a primary tube (T1) by extrusion molding a urine discharge pipe (10) having a discharge path (11) and having a capillary tube (20) forming a flow path (22) (S10);
b) boring an air hole 21 in the side wall portion of the urine discharge pipe 10 so as to communicate with the flow path 22 (S20);
c) applying a release agent 13 to some areas before and after the air hole 21 (S30);
d) manufacturing a secondary tube (T2) having a balloon portion (32) by double extrusion molding the coating material (30) on the outer peripheral surface of the urine discharge pipe (10) (S40); And
e) sealing the front end opening of the discharge passage 11 with a sealing tip 40 to form an integrated tube (S50); including,
In the step b) (S20), a part of the side wall of the urine discharge pipe 10 is cut to have a predetermined length in the longitudinal direction of the capillary tube 20 to form a long-hole type air hole 21a or two or more circular air holes. It consists of a process of drilling the hole (21b),
In step c) (S30), the first tube (T1) is fixed to the jig 50 so that the front end of the urine discharge tube 10 is exposed, and then the jig 50 is rotated to apply the release agent 13 Including the process,
The jig 50,
It has an outer diameter smaller than the inner diameter of the discharge passage 11 and extends to have a length longer than the application section of the release agent 13 and is inserted into the discharge passage 11 of the primary tube T1, and an air supply passage formed therein ( A core material 510 having 511 and an air discharge hole 512 formed on the side wall,
As an expandable soft material having elasticity in the direction of contraction, it is combined while surrounding the core material 510, and an air shell 521 is formed therein, and expands when air is injected to hold the inner circumferential surface of the primary tube T1. Giving the expansion tube 520,
A plurality of C-rings that are fitted to the outer circumferential surface of the expansion tube 520 and limit the expansion of the expansion tube 520 to a size corresponding to the inner diameter of the discharge path 11 when the expansion tube 520 expands (530) A method of manufacturing a poly catheter having an integral tube for discharging urine, characterized in that consisting of a rod-shaped jig including.
The method of claim 2,
In step e) (S50), the sealing tip 40 is cured by inserting the front end of the secondary tube T2 into the hemispherical receiving portion 71 of the molding cap 70 filled with the raw material of the sealing tip 40. A method of manufacturing a foley catheter having an integral tube for discharging urine, comprising the step of removing the molding cap (70).
The method of claim 3,
The molding cap 70 is a method of manufacturing a poly catheter having an integrated tube for discharging urine, characterized in that made of a tempered glass material.

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