KR101664348B1 - Foley catheter with folding portion - Google Patents

Foley catheter with folding portion Download PDF

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Publication number
KR101664348B1
KR101664348B1 KR1020150153187A KR20150153187A KR101664348B1 KR 101664348 B1 KR101664348 B1 KR 101664348B1 KR 1020150153187 A KR1020150153187 A KR 1020150153187A KR 20150153187 A KR20150153187 A KR 20150153187A KR 101664348 B1 KR101664348 B1 KR 101664348B1
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KR
South Korea
Prior art keywords
bladder
urethral catheter
pulling string
connection
folded portion
Prior art date
Application number
KR1020150153187A
Other languages
Korean (ko)
Inventor
박종관
박준성
Original Assignee
전북대학교병원
전북대학교산학협력단
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 전북대학교병원, 전북대학교산학협력단 filed Critical 전북대학교병원
Priority to KR1020150153187A priority Critical patent/KR101664348B1/en
Application granted granted Critical
Publication of KR101664348B1 publication Critical patent/KR101664348B1/en
Priority to PCT/KR2016/011682 priority patent/WO2017078292A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0041—Catheters; Hollow probes characterised by the form of the tubing pre-formed, e.g. specially adapted to fit with the anatomy of body channels

Abstract

The present invention relates to a urethral catheter having a folded portion. More specifically, the end portion of the urethral catheter can be bent by pulling the end portion of the urethral catheter when the urethral catheter is inserted after the prostate is inserted, thereby preventing the end portion of the urethral catheter from being bent To a urethral catheter in which the urethral catheter end is easily inserted into the bladder.

Description

TECHNICAL FIELD [0001] The present invention relates to a catheter having a folded portion,

The present invention relates to a urethral catheter having a folded portion. More specifically, the end portion of the urethral catheter can be bent by pulling the end portion of the urethral catheter when the urethral catheter is inserted after the prostate is inserted, thereby preventing the end portion of the urethral catheter from being bent To a urethral catheter in which the urethral catheter end is easily inserted into the bladder.

In general, catheterization involves injecting a catheter into the body cavity, urethra, or blood vessel to enable access to surgical instruments, or to allow excretion of body fluids to the outside or drug injection into the surgical site.

In the case of a urethral catheter, which is an element of the catheter, it is used to inject urine into the bladder or to discharge urine from the bladder to relieve extreme urine stagnation due to enlargement of the prostate gland.

The prostate weighs about 20 grams and is located in the lower portion of the bladder, near the bladder, through the center of the prostate and through the appendage and urethra. That is, because the urethra passes through the center of the prostate gland, when the prostate gland becomes enlarged due to enlarged prostate or prostate cancer, the urethra narrows and it becomes difficult to pass the urine.

One method of treating the prostate-related disease is to remove the narrowed prostate site by endoscopy or laparotomy with a surgical procedure, insert the urethral catheter into the bladder through the urethra, and urinate the bladder into the urethral catheter until the incision is stabilized .

However, the urethra in which the urethral catheter is inserted has a curvature that is bent upward from a portion close to the bladder inlet, and a deeper curvature is formed at this portion due to the operation even when the prosthesis is performed. Therefore, since the step formed by the removal of the prostate gland is formed at the bladder inlet portion, the end portion of the urethral catheter is caught by the step of the urethra when inserting the urethral catheter, making it difficult to enter the bladder. Particularly, the urethral catheter has flexibility, and when the urethral catheter is caught by the step, the distal end is broken, making it difficult to enter the bladder. This is caused by the insertion of the urethral catheter into the site where the urethra narrows.

In Korean Registered Patent No. 1481887 (registered on May 1, 2015, hereinafter referred to as "Prior Art 1"), a catheter and catheter insertion method using an insertion guide are proposed. The prior art document 1 is a catheter that is inserted into the urethra by an insertion guide inserted in the urethra and inserted into the urethra and uses an insertion guide for discharging the body fluid contained in the bladder after removing the insertion guide. tube; An inner tube which is hollow in the inner side of the outer tube so as to form a discharge path of the body fluid, and is spaced apart from the inner surface of the outer tube; A prostate-tightening balloon attached to the outer tube and inflated to urge the prostate gland; A plurality of exhaust holes spaced apart from an end region of the inner tube and the outer tube, and configured to discharge the body fluid; And a front through hole for cutting the end of the inner tube and the outer tube to connect the hollow of the inner tube to the bladder, and the insertion guide is inserted into the hollow of the inner tube through the front through hole, Wherein the prostate-tightening balloon is inserted into the proximal-end portion of the proximal-end portion of the bladder,

Korean Registered Patent No. 0992872 (Registered on November 2, 2010, hereinafter referred to as 'Prior Art Document 2') presented a urethral catheter. The prior art 2 includes a main pipe having one end clogged and having a urine passage through which urine moves and a fluid passage through which the fluid moves, respectively; A fluid outlet formed on the side of the main pipe at a side thereof and connected to the fluid passage; A plurality of expanding portions capable of expanding and contracting and expanding toward an axial center of the main pipe while surrounding the fluid outlet and being engaged with the side of the main pipe so as to be caught in the bladder; A urine inflow port connected to the urine passage on a side surface of the main pipe and formed to be axially inward of the main pipe or overlapping the inflation part with respect to the inflation part; A urine outlet connected to the urine passage and coupled to the other end of the main tube; And a fluid inlet connected to the fluid passage and coupled to the other end of the main tube, wherein the main pipe is provided with a guiding wire for guiding the entry of the patient into the bladder, Holes are formed in the urethral catheter.

In the prior arts 1 and 2, the insertion guide is first inserted through the endoscope to the bladder through the urethra, and the urethral catheter is guided by the inserted insertion guide to the bladder along the urethra to insert the urethral catheter into the bladder inlet However, there is a disadvantage that the operation time is prolonged because a dual operation of inserting the insertion guide and the urethral catheter into the bladder through the urethra is required.

Korean Unexamined Patent Publication No. 2003-0069757 (published on Aug. 27, 2003, hereinafter referred to as 'Prior Art Document 3') proposed a urinary catheter in the bladder. The prior art document 3 includes a bladder insertion part inserted into the bladder and an external bladder insertion part integrally formed with the insertion part inside the bladder and being located outside the bladder, ; A discharge pipe installed inside the main body to discharge urine; First fixing means formed inside the insertion portion of the bladder; And an expanding means having one side fixed to the first fixing means. Particularly, in the prior art document 3, a plurality of openings are formed on the side close to the insertion end of the catheter, and the insertion end is pulled by using a strap as an extension means to expand the portion where the opening is formed, It is to prevent detachment of the catheter by a simple structure.

Although the above-mentioned prior art document 3 has an effect of simplifying the structure, since the structural strength of the catheter end is lowered by a large number of openings of the catheter (catheter), the insertion of the catheter due to the step or the operation site at the bladder entrance at the time of insertion into the bladder There is a problem in that it is not easily performed.

Therefore, there is a need for a novel catheter that has a simple structure and can easily pass through the bladder inlet.

Korean Registered Patent No. 1481887 (June 1, 2015): Catheter and catheter insertion method using insertion guide Korean Registered Patent No. 0992872 (registered on November 2, 2010): Urethral catheter Korean Patent Publication No. 2003-0069757 (published on Aug. 27, 2003): Intra-bladder catheter

In order to solve the above-mentioned problems of the prior art, the urethral catheter of the present invention comprises:

The object of the present invention is to provide a urethral catheter having a simple structure capable of easily entering the bladder beyond the step of the bladder inlet with the urethral catheter alone without the insertion guide.

Another object of the present invention is to provide a display means for indicating the direction of bending of the end of the tubular body at the tubular outer surface of the urethral catheter so that the direction of bending of the urethral catheter tip at the time of insertion of the urethral can be easily confirmed.

It is another object of the present invention to provide a device having a structure that can easily remove the pulling string, which is a means for bending the urethral catheter, after the procedure.

In addition, in order to easily bend the end portion in the direction of the end of the urethral catheter, a transverse groove is formed in a direction of bending in the direction of bending, or a horizontal line is formed in which the thickness is thinned. Another object is to provide a device having a structure that allows easy bending.

The urethral catheter of the present invention for solving the above-

A urinary catheter comprising: an insertion end formed in a bladder and having a plurality of through holes formed on a side thereof; a connection end portion exposed to the outside; and a discharge channel communicating the insertion end and the connection end to discharge the body fluid into the bladder, A groove having a reduced thickness in the lateral direction or a through hole having a through-hole shape is formed at a position spaced apart from the insertion end in the direction of the other connecting end so that when the load acts on the insertion end side, have.

Further, a folded portion may be formed on the outer surface of the connection end exposed to the outside, and a display unit may be further formed to indicate a direction in which the insertion end is bent.

Further, a connecting portion connecting one side of the pulling string extending outward is formed at a portion close to the insertion end, and when the pulling string is pulled from the outside, the insertion end side can be bent toward one side with the folded portion as a center. At this time, the pulling string may be formed of a material to be corroded, or the middle portion of the pulling string may pass through the connecting portion, and both ends may be located outside the pipe connecting end so that the pulling string can be removed.

The connecting portion is formed at a position close to the insertion end, the tubular body is cut in side by side so as to bend the portion between the two incision portions in the direction of the discharge channel to form a loop, or a ring is further formed on the inner wall of the discharge channel to connect one side of the pull- The folded portion may be formed on a surface opposite to the surface on which the connecting portion is formed, and may be formed at a position spaced apart from the connecting portion by 1 to 20 mm in the direction of the connecting end.

In addition, the discharge passage may be formed with a ring-shaped hinge connection portion on an inner wall surface opposite to an inner wall formed with a connection portion. The hinge connection portion may be formed by bending the portion between the two incision portions in the direction of the discharge passage to form a ring A loop is formed on the inner wall of the discharge passage, and the pulling string is connected to the connecting portion through the hinge connecting portion so that the pulling can be made in the direction of the hinge connecting portion from the connecting portion.

The folded portion is a through-hole penetrating horizontally. An inner communication straight pipe penetrating from the lower surface of the folded portion to the connection end portion is formed in the wall of the pipe body. The upper portion, which is spaced apart from the folded portion by a certain distance, And one end of the pulling string is introduced into the inner connecting straight pipe of the connecting end side to be discharged to the lower face of the folded portion and then passes through the two connecting holes sequentially and then flows into the inner communication straight pipe of the lower face of the folded portion again To be discharged to the connection end side.

In addition, the folded portion is a through-hole penetrating horizontally, and an inner communication straight pipe penetrating from the lower surface of the folded portion to the connection end portion is formed inside the tube wall, and an inner communicating U-tube is formed in the upper surface of the folded portion in the direction of the insertion end And one end of the pulling string is introduced into the inner connecting straight pipe of the connecting end side to be discharged to the lower face of the folded portion and then introduced into one side of the inner communicating U-shaped pipe of the upper face of the folded portion and discharged to the other side, And may be provided in such a structure that it flows into the communication straight pipe and is connected to be discharged to the connection end side.

The urethral catheter of the present invention by the above-

The insertion end can be positioned in the bladder by passing through the engagement of the entrance portion into the bladder without the insertion guide. Particularly, since the insertion end of the urethral catheter tube can be easily folded to one side by the pulling cord and the folded portion, and the bladder can be easily inserted into the bladder through the step of the bladder inlet, It has become possible to provide a useful device capable of reducing the equipment cost.

1 is a perspective view schematically showing a urethral catheter according to the present invention;
FIG. 2A and FIG. 2B are enlarged longitudinal sectional views showing an operation state of an insertion end of a urethral catheter according to the present invention. FIG.
Fig.
FIG. 3 is a sectional view showing an operating state of a urethral catheter having a hinge ring according to the present invention. FIG.
FIGS. 4A and 4B are a plan view and a cross-sectional view illustrating another type of connection portion and a hinge connection portion according to the present invention;
5 is a perspective view showing a main part of a urethral catheter in which a display unit according to the present invention is formed;
FIGS. 6 and 7 are schematic views showing another example of installation of a pulling string according to the present invention; FIG.

Hereinafter, the present invention will be described in detail with reference to preferred embodiments. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

1 is a perspective view schematically showing a urethral catheter according to the present invention.

As described above, the urethral catheter 10 according to the present invention is composed of the tubular body 20 having the discharge passage 23, which is a hollow portion inside. The insertion end portion 21 which is one end of the tubular body 20 is inserted into the bladder through the urethra and the connection end portion 22 which is the other end of the tubular body is located outside the human body, To the outside. Herein, the tubular body may further include an infusion line (e.g., physiological saline solution) commonly used, so that a portion of the urethral catheter body adjacent to the insertion end is expanded by infusion, thereby preventing the urethral catheter, Can be deduced.

2A, the urethral catheter 10 may have a plurality of through-holes 25 formed in a side surface thereof close to the insertion end 21 to be inserted into the bladder, so that urine in the bladder can be easily introduced. And also can be used as a through hole through which the endoscope passes.

In the urethral catheter 10, a connecting portion 30 is formed on the inner wall of the discharging passage 23 which is close to the insertion end, and a pulling string 40 extending to the outside is connected to the connecting portion through the connecting end. When the pulling string 40 is connected to the inner wall surface of the urethral catheter, the pulling force when pulling the pulling string acts on one side of the urethral catheter, so that the insertion end side of the urethral catheter is moved in one direction .

For example, if the urethral catheter 10 is inserted into the urethra and advanced, the direction of the bladder is turned at the portion before the bladder entrance to reach the bladder inlet. At this time, when pulling the pulling string 40, the insertion end portion 21 of the urethral catheter is bent inward, which is the direction of the central axis of rotation, so that the outer portion of the urethral catheter has a slanting surface 24, . Thus, the inclined surface 24 created by the insertion end bending of the urethral catheter can be passed over the step formed by the prostate-incision procedure or the bladder inlet structure, so that the insertion of the urethral catheter into the bladder without interfering with the urethral catheter insertion guide Can be easily achieved.

2B and 2C, the folded portion 50 is formed in the urethral catheter body 20 so that a folding direction can be formed in a predetermined direction by previously setting a folding position.

The folded portion 50 is formed in a portion of the tube 20 facing the inner wall of the discharge passage 23 formed with the connection portion 30 and is formed in a direction orthogonal to the line in which the discharge passage is formed, Or may be formed in a variety of shapes such as a structure in which a plurality of through holes are densely packed so as to lower the structural strength than other portions. When the structure strength is lowered by the wrinkle portion, the pulling force is concentrated on the wrinkle portion when the pulling string is pulled, so that the folding is performed.

The folded portion 50 may be formed in a semicircle or a similar size in a direction opposite to a surface of the tube cross section where the connection portion 30 is formed. In addition, if the connection portion 30 is formed at a position spaced apart from the insertion end portion 21 by 1 to 10 mm, the connection portion 30 may be formed at a position spaced by 1 to 20 mm in the direction of the connection end portion exposed from the connection portion. For example, referring to FIG. 2B, when the pulling force of the pulling string 40 is transmitted to the connecting portion 30 which is the upper portion of the tube, the connecting portion 30 pulls downward, The load is concentrated on the folded portion 50 having a low strength so as to be folded so that one end of the urethral catheter body is folded in a manner similar to that of the letter "A", and the inclined face 24 is formed on the folded- It is possible to easily enter the bladder beyond the steps located in the catheter advancing direction.

3, the hinge connection portion 60 may be further formed on the inner surface of the discharge passage 23. [

The hinge connection part (60) communicates with a pulling cord (40) connected to the connection part (30), and sets the direction in which the connection part is pulled. That is, when the pulling string 40 is pulled without the hinge connection part 60, the force acting in the direction of the tubular axis is greater in the connection part 30 than in the side, so a large force is required to bend the insertion end side of the urethral catheter, If the pulling force is increased, the pulling string may be broken or the connecting portion may be damaged.

Accordingly, the hinge connection portion 60 is formed on the inner wall surface facing the inner wall formed with the connection portion 30 so as to support the pulling string 40. When the pulling string is pulled, the pulling force acting on the portion of the connection portion 30 substantially The insertion end portion 21 can be bent by a relatively small force as compared with the case where the hinge connection portion is not provided since the hinge connection portion 60 is pulled in the side direction where the hinge connection portion 60 is not formed.

The connecting portion 30 and the hinge connecting portion 60 may be formed in a ring shape on the inner wall surface of the urethral catheter body as shown in FIGS. 2A to 3, as well as FIGS. 4A and 4B. The tubular body to be connected is cut in a lengthwise direction or in a transverse direction orthogonal to the tubular body so as to form a cutout 29 and a portion between the two cutouts is bent or pulled in the direction of the discharge passage . In addition, the cut-out portion 29 may be formed at only one of the upper portions of FIG. 4A so as to connect the pulling strings, or a plurality of cut-out portions may be formed at upper and lower portions to connect the pulling strings. A method in which a plurality of light emitting elements are formed on opposite surfaces is also applicable.

5, the urethral catheter 10 may be further provided with a display portion 70 so that the urethral catheter 10 can easily grasp the insertion portion in the bending direction. The display unit 70 may be displayed on the side of the connection end 22 of the urethral catheter so that the display unit 70 can be inserted in a desired direction when inserting the urethra so as to easily pass the portion where the occlusion may occur. Such indicia may be provided in a variety of forms, such as printing by a color different from that of the urethral catheter tube, or projection or groove.

In addition, the pulling cord 40 is unnecessary after the insertion end 21 of the urethral catheter is positioned in the bladder, and is preferably removed after the urethral catheter procedure.

Removal of the pulling string 40 can be accomplished by pulling one of the ends of the pulling string by pulling the central portion of the pulling string to the connecting portion and exposing both ends of the pulling rod to the outside, . In addition, the pulling bar itself is made of a material which is corroded, and it can be corroded after a certain period of time, so that it can be discharged to the outside when the body fluid is discharged.

In addition, the tubular body 20 of the urethral catheter may be made of a material capable of minimizing friction when inserted into the human body, so that the tubular body 20 can be easily inserted into the urethra.

Briefly describing the operation state of the urethral catheter of the present invention,

The urethral catheter 10 is inserted into the bladder through the urethra with the insertion end 21 of the tubular body 20 at the head.

When the insertion end is caught by the step or the latch jaw in the insertion process, the pulling string 40 is pulled to bend the insertion end portion of the tubular body, and then the tubular body is pushed in.

At this time, the pulling string 40 is pulled out of the tubular body in the axial direction of the urethral catheter 10, but the pulling direction is switched by the support of the middle hinge connection portion 60, Direction.

That is, the hinge connection portion 60 is formed in the opposite direction of the connection portion 30, so that the pulling force acts in the lateral direction rather than the axial direction of the urethral catheter so that the insertion end portion 21 of the tubular body 20 is folded 50).

Thus, the bent portion of the tubular body bent at the insertion end portion is inserted into the bladder over the hook or step with the inclined surface 24, so that the urethral catheter can be installed without any other measures or insertion guide.

In addition, when the installation of the urethral catheter 10 is completed, it is possible to provide a convenience of easily pulling the pulling string by pulling one pull string of the two pulled pull strings 40 outwardly.

On the other hand, the urethral catheter of the present invention can be provided only with the folded portion 50 without pulling the string. At this time, the folded portion 50 may be a groove having a thickness smaller than the circumference as described above, or one or a plurality of through holes may be formed to reduce the structural strength. In this way, even when the folded part is formed, when the urethral catheter is inserted and a relatively small obstacle including a lower step is encountered, the urethral catheter can fold over the obstacle while folding the insertion end by itself.

In addition, the installation of the pulling rope 40 can be applied in various forms other than the above-mentioned connection method of the ring type.

For example, the pulling string 40 can be installed through a microtubule formed inside the wall of the tubular body 20 of the urethral catheter. Referring to FIG. 6, the urethral catheter 10 according to the embodiment of the present invention has a folded portion 50 formed in the shape of a long hole in the transverse direction of the tubular body.

An inner communication straight pipe 26 is formed inside the wall of the tubular body 20.

The inner communication straight pipe (26) is communicated from the lower surface of the folded portion (50) which is the through hole to the pipe connecting end portion (22). A connection hole 27 is formed at a position spaced apart from the folded portion by a predetermined distance at the side of the insertion end which is the upper side of the folded portion 50. The pulling string 40 is connected to the inner communication straight pipe 26 through the two connection holes 27 and pulled by the pulling string to partially bend the insertion end side of the pipe.

One end of the pulling string 40 is introduced into the end of the inner communication straight pipe 26 formed on the side of the connection end 22 and discharged to the end of the inner communication straight pipe on the lower face of the folded portion 50, (27) sequentially. At this time, as a method of connecting to the two connection holes 27, the pulling string 40 discharged to the end of the inner communication straight pipe 26 of the folded portion 50 is taken out to the outside of the urethral catheter body, Into the discharge passage 23 inside the tubular body through the second connection hole and then to the outside of the tubular body through the second connection hole and then inserted into the end of the inner communication straight pipe 26 of the folded portion 50, Is discharged to the inner communication straight pipe end on the pipe connection end side.

When the pulling string 40 is pulled from the outside in the state of being coupled as described above, the pulling string portion connecting the two connecting holes 27 is pulled outward in the tubular body 20, so that the folded portion 50 having a low structural strength is folded The side of the insertion end portion 21 of the tubular body is bent.

As a matter of course, in addition to the method of forming the two connecting holes 27 and the folded portion 50 on the same direction of the tubular body, the two connecting holes and the folded portion may be formed on the mutually facing surfaces of the tubular body. At this time, the pulling-out line drawn to the end of the inner communicating tube of the folded portion is discharged to the outside of the tube body through the first connecting hole, flows into the tube body through the second connecting hole and is drawn out to the connecting end side through the end portion of the inner- And the like. In this method, when the pulling force is applied, the wall of the tube where the two connection holes are located is pulled in the direction in which the folding portion is formed, so that the bent portion is formed.

7, the folded portion 50 is formed in the tubular body so as to communicate with the lower surface of the folded portion 50 and the tubular connecting end portion 22, The inner communication straight pipe 26 and the inner communication straight pipe 26 having a U-shaped flow path formed on the upper surface of the folded portion 50 formed in the inner wall of the pipe body, The pulling string 40 is inserted into the inner communicating tube 50 and the inner communicating tube 28 so that the tube can be bent in one direction by pulling the pulling string.

One end of the pulling string is introduced into the end of the inner communication straight pipe 26 formed on the side of the connection end 22 and discharged to the end of the inner communication straight pipe on the lower face of the folded portion 50, The pulling string 40 passing through the inner communicating U-shaped tube is again introduced into the end of the inner communicating straight pipe 26 formed on the lower face of the folded portion, and finally, And is discharged to the outside through the pipe connecting end.

When the pulling string 40 is pulled from the outside in such a combined state, the portion of the inner communication U-tube 28 through which the pulling string passes is pulled toward the folded portion, and the portion of the folded portion 50 having a low structural strength is pulled toward the hinge shaft And the side of the tubular insertion end portion 21 on the upper side of the folded portion is bent. Therefore, the urethral catheter 10 can be stably moved to the bladder through the bent portion of the insertion end side of the urethra catheter in the insertion direction, thereby allowing the urine to be discharged to the outside of the body.

In addition, the inner communication U-tube and the inner communication straight pipe are formed in a shape of being located in the wall of the tubular body or attaching a separate micro tube on the discharge flow path surface inside the tubular body so that the insertion end side is bent by the pull string can do.

10: Urethral catheter
20: Tubular body
21: insertion end 22: connection end
23: discharge flow path 24: inclined surface
25: through hole 26: inner communication straight pipe
27: Connection hole 28: Internal communication U-tube
29: incision
30: Connection
40: Pull string
50:
60: hinge connection
70:

Claims (8)

A urinary catheter comprising: an insertion end formed in a bladder and having a plurality of through holes formed on a side thereof; a connection end portion exposed to the outside; and a discharge channel communicating the insertion end and the connection end to discharge the body fluid into the bladder,
And a connecting portion for connecting one side of the pulling string extending outward is formed at a portion close to the insertion end to form a connection portion for connecting the other end of the pulling string, When the pulling string is pulled, the insertion end side is bent to one side about the folded portion,
Wherein the folded portion is formed with an inner communication straight pipe penetrating from the lower surface of the folded portion to the connection end in the tubular wall surface and a connection hole penetrating to both sides is formed at an upper portion spaced apart from the folded portion in the direction of the insertion end,
The pulling string is configured such that one end of the pulling string is introduced into the inner connecting straight pipe of the connecting end side and is discharged to the lower face of the folded down portion and then sequentially passes through the two connecting holes and then flows into the inner connecting straight pipe of the lower face of the folded back portion, Gt; a < / RTI > catheter. delete delete delete delete delete delete A urinary catheter comprising: an insertion end formed in a bladder and having a plurality of through holes formed on a side thereof; a connection end portion exposed to the outside; and a discharge channel communicating the insertion end and the connection end to discharge the body fluid into the bladder,
And a connecting portion for connecting one side of the pulling string extending outward is formed at a portion close to the insertion end to form a connection portion for connecting the other end of the pulling string, When the pulling string is pulled, the insertion end side is bent to one side about the folded portion,
Wherein the folded portion has an inner communication straight pipe penetrating from the lower surface of the folded portion to the connection end in the tubular wall surface and an inner communicating U-shaped pipe is formed on the upper surface of the folded portion in the direction of the insertion end,
The pulling string is configured such that one end thereof flows into the connecting end side inner communication straight pipe and is discharged to the lower face of the folded portion, then flows into one side of the inner communicating U-shaped tube of the upper face of the folded portion and is discharged to the other side, And is connected to be discharged to the side of the connection end.
KR1020150153187A 2015-11-02 2015-11-02 Foley catheter with folding portion KR101664348B1 (en)

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KR1020150153187A KR101664348B1 (en) 2015-11-02 2015-11-02 Foley catheter with folding portion
PCT/KR2016/011682 WO2017078292A1 (en) 2015-11-02 2016-10-18 Urethral catheter having folding part

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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KR20190106131A (en) 2018-03-07 2019-09-18 주식회사 에스엠메디컬 Pad-integrated self-catheter for urination
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JPH06343702A (en) * 1993-06-04 1994-12-20 Terumo Corp Catheter
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WO2017078292A1 (en) * 2015-11-02 2017-05-11 전북대학교병원 Urethral catheter having folding part
KR20190106131A (en) 2018-03-07 2019-09-18 주식회사 에스엠메디컬 Pad-integrated self-catheter for urination
KR20190002340U (en) 2018-03-12 2019-09-20 김광수 Condom type catheter
US11628035B2 (en) 2018-09-20 2023-04-18 Industry-Academic Cooperation Foundation Yonsei University Endoscope surgery device

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