KR20160111721A - Guider instrument for inserting urethral catheter and urethral catheter kit with the same - Google Patents

Guider instrument for inserting urethral catheter and urethral catheter kit with the same Download PDF

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Publication number
KR20160111721A
KR20160111721A KR1020150036755A KR20150036755A KR20160111721A KR 20160111721 A KR20160111721 A KR 20160111721A KR 1020150036755 A KR1020150036755 A KR 1020150036755A KR 20150036755 A KR20150036755 A KR 20150036755A KR 20160111721 A KR20160111721 A KR 20160111721A
Authority
KR
South Korea
Prior art keywords
urethral catheter
diameter
guider
smaller
outer diameter
Prior art date
Application number
KR1020150036755A
Other languages
Korean (ko)
Inventor
박종관
박준성
Original Assignee
전북대학교산학협력단
전북대학교병원
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.)
Filing date
Publication date
Application filed by 전북대학교산학협력단, 전북대학교병원 filed Critical 전북대학교산학협력단
Priority to KR1020150036755A priority Critical patent/KR20160111721A/en
Priority to PCT/KR2016/002332 priority patent/WO2016148432A1/en
Publication of KR20160111721A publication Critical patent/KR20160111721A/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/0021Catheters; Hollow probes characterised by the form of the tubing
    • A61M25/0041Catheters; Hollow probes characterised by the form of the tubing pre-formed, e.g. specially adapted to fit with the anatomy of body channels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/0105Steering means as part of the catheter or advancing means; Markers for positioning
    • A61M25/0133Tip steering devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M25/00Catheters; Hollow probes
    • A61M25/01Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/09Guide wires
    • A61M25/09016Guide wires with mandrils
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2210/00Anatomical parts of the body
    • A61M2210/10Trunk
    • A61M2210/1078Urinary tract
    • A61M2210/1089Urethra

Abstract

According to the present invention, there is provided a device for inserting a urethral catheter having a fluid passage and a through-hole communicating with the fluid passage and smaller than the fluid passage at the distal end, the fluid passage having a diameter smaller than the diameter of the fluid passage, There is provided a guiding catheter for inserting a urethral catheter having a body portion extending longer than a urethral catheter and an extension extending from a distal end of the body portion and having an outer diameter smaller than the diameter of the through-hole.

Description

TECHNICAL FIELD [0001] The present invention relates to a guiding instrument for inserting a urethral catheter, and a urethral catheter kit including the guiding instrument and the urethral catheter kit.

The present invention relates to a technique for inserting a urethral catheter into a urethra, and more particularly, to a guide mechanism and a urethral catheter kit having the guide mechanism used to allow a urethral catheter to pass through a narrow stenosis site.

Urethral catheters are inserted through the urethra to drain urine from the patient's bladder. Because the urethral catheter is made of a flexible and soft material, when the portion of the urethra is narrowed by stenosis or the like during insertion through the urethra, the distal end portion may not be bent and can not enter. The inventor of the present application has developed a method of inserting the urethral catheter 10 using the insertion guider 11 as shown in Fig. 1, a small through-hole 11 is formed at the distal end of the urethral catheter 10, and a wire-shaped insertion guider 11 is inserted through the inner passage of the urethral catheter 10 . By inserting the urethral catheter 10 while being guided by the insertion guider 11, even if the distal end of the urethral catheter 10 meets a narrow stenosis area, it is supported and stably passed by the insertion guider 11 having a strong vertical hardness . However, if the degree of stenosis is so severe that the stenosis site is narrower than the outer diameter of the urethra catheter, there is a problem that the urethral catheter can not pass through the stenosis site even if the insertion guide 11 is used.

Korean Registered Patent Publication No. 10-1481887 "Catheter and Catheter Insertion Method Using Insertion Guide" (2015.01.21.)

It is an object of the present invention to provide a guider mechanism and a urethral catheter kit having the guider mechanism used for insertion of the urethral catheter.

Another object of the present invention is to provide a guider mechanism and a urethral catheter kit having the guider catheter that are used to allow the urethral catheter to easily pass through the narrowed region in the urethra.

According to an aspect of the present invention,

A device for inserting a urethral catheter having a fluid passageway and a through-hole communicating with the fluid passageway and smaller than the fluid passageway at its tip, the device having an outer diameter smaller than the diameter of the fluid passageway and greater than the through- And an extension portion extending from a distal end of the body portion and having an outer diameter equal to or smaller than a diameter of the through-hole.

The body may have a linear portion extending in a straight line and a curved portion bent in one direction from a tip of the straight portion, and the extension portion may be connected to the tip of the curved portion.

The guider mechanism may further include a handle formed on the body, and the handle may be positioned to be exposed to the outside of the urethral catheter when the distal end of the body is inserted into the urethral catheter.

According to another aspect of the present invention,

A urethral catheter having a fluid passageway, said urethral catheter communicating with said fluid passageway and provided at its distal end with a penetration smaller than said fluid passageway; And a guider mechanism having a body portion that is smaller than the diameter of the fluid passage and has an outer diameter larger than the through-hole and that is longer than the urethral catheter, and an extension portion extending from a distal end of the body portion and having an outer diameter smaller than the diameter of the through- Lt; / RTI > catheter kit is provided.

According to another aspect of the present invention,

A device for inserting a urethral catheter having a fluid passage and a through-hole communicating with the fluid passage and smaller than the fluid passage, the guide wire having an outer diameter smaller than the diameter of the through-hole; And a guider tube extending in the longitudinal direction and having guide passages open at both ends thereof, wherein a diameter of the guide passage is larger than an outer diameter of the guide wire, and an outer diameter of the guider tube is smaller than a diameter of the fluid passage Wherein the catheter is inserted into the catheter.

The guider tube may have a linear portion extending straight and a curved portion bent in one direction from a tip of the straight portion.

The guider tube may have a handle portion positioned to be exposed to the outside of the urethral catheter when the distal end of the guider tube is inserted into the urethral catheter.

According to another aspect of the present invention,

A urethral catheter having a fluid passageway, said urethral catheter communicating with said fluid passageway and provided at its distal end with a penetration smaller than said fluid passageway; And a guider tube having a guider wire and a guider tube extending in the longitudinal direction and having both ends opened, wherein the guider wire has an outer diameter of not more than a diameter of the through-hole, Is larger than the outer diameter of the guide wire, and the outer diameter of the guider tube is smaller than the diameter of the fluid passage.

According to the present invention, all of the objects of the present invention described above can be achieved. Specifically, the catheter is inserted into the urethral catheter so as to support the urethral catheter by inserting the body or the guider tube into the urethral catheter because the catheter is inserted into the urethral catheter. This allows the urethral catheter to easily pass through the site of stenosis.

1 is a view for explaining a conventional method of inserting a urethral catheter.
2 is a perspective view illustrating a urethral catheter kit according to a first embodiment of the present invention.
Fig. 3 is a side view of the urethral catheter kit shown in Fig. 2, wherein the urethral catheter is cut along the longitudinal direction so as to show the inside thereof.
FIG. 4 is a plan view of the handle portion of the guider mechanism shown in FIGS. 2 and 3, viewed from above.
FIG. 5 is a side view showing a urethral catheter kit according to a second embodiment of the present invention, wherein the urethral catheter is cut along the longitudinal direction so as to show the inside thereof.
Fig. 6 is a perspective view showing a guider mechanism in which a guide wire is passed in the urethral catheter kit of Fig. 5;

Hereinafter, the configuration and operation of an embodiment of the present invention will be described in detail with reference to the drawings.

2 and 3 show a urethral catheter kit according to a first embodiment of the present invention. 2 and 3, a urethral catheter kit 100 according to a first embodiment of the present invention includes a urethral catheter 110 and a guider mechanism 120 used for insertion of a urethral catheter 110 . The urethral catheter 110 can be easily passed through a portion narrower than the outer diameter of the urethral catheter 110 due to severe stenosis in the urethra by the guider mechanism 120. [

The urethral catheter 110 is in the form of a long elongated tube, and a fluid passage 111 having a predetermined diameter is formed inside the urethral catheter 110. The urine of the bladder is discharged through the fluid passage 111. A distal end 112 of the urethral catheter 110 is provided with a through hole 113 communicating with the fluid passage 111 and having a smaller diameter than the fluid passage 111. At the side adjacent the tip 112 in the urethral catheter 110 is formed at least one inlet 114 communicating with the fluid passageway 111. Urine of the bladder flows into the fluid passage 111 through the inlet 114. In the present embodiment, the length of the urethral catheter 110 is 40 cm, the diameter of the fluid passage 111 is 2.5 to 6.5 mm, and the diameter of the through hole 113 is 1 mm, which is only one example The present invention is not limited thereto. The urethral catheter 110 may be made of the same material as that used in a conventional urethral catheter. The urethral catheter 110 is inserted through the urethra until the tip 112 is located in the bladder. The urine in the bladder flows into the fluid passage 111 through the through-hole 113, and is discharged to the outside through the fluid passage 111.

The guider mechanism 120 is generally elongated and has a body portion 130 and an extension portion 140 extending long from the front end of the body portion 130 along the longitudinal direction. The guidewire instrument 120 allows the urethral catheter 110 to pass easily through the narrowed region in the urethra.

The body portion 130 is elongated as a whole and is longer than the urethral catheter 110 and has an outer diameter smaller than the fluid passage 111 and larger than the through-hole 113. In the present embodiment, the body portion 130 is described as having a length of 60 cm and an outer diameter of 2 to 6 mm, but the present invention is not limited thereto. The body portion 130 has a straight portion 131 extending in a straight line and a curved portion 136 curved in one direction from the tip of the straight portion 131. On the linear portion 131, a handle 132 is formed. The handle portion 132 has a wide, flat plate-like shape as shown in the figure so as to be held by the operator and easy to push, pull or rotate the guider mechanism 120. The handle 132 is positioned such that the body 130 is exposed to the outside of the urethral catheter 110 with the utmost input into the urethral catheter 110. The curved portion 136 curves in one direction from the tip of the straight portion 131 and is bent and extended. In this embodiment, the length of the curved portion 136 is 5 cm, but the present invention is not limited thereto. The distal end 137 of the curved portion 136 is caught in the distal end 113 of the urethral catheter 110 in the fluid passage 111. An extension portion 140 is connected to the tip 137 of the curved portion 136. The reason why the curved portion 136 is formed is as follows. The shape of the urethra near the perineal area (umbilical urethra) is bent into an "L" shape and leads to the bladder, so the guider mechanism also takes the form of a curve of varying angles (from 1 degree to 90 degrees).

In the present embodiment, the body portion 130 is described as having the curved portion 136, but the curved portion 136 may not be provided. That is, the body part 130 may have a shape in which the entire body extends in a straight line, which is also within the scope of the present invention.

The extension portion 140 is formed to extend in the longitudinal direction from the tip end 137 of the curved portion 136. The extension portion 140 is formed to be thinner than the body portion 130 so as to pass through the through hole 113 formed in the urethral catheter 110. In the present embodiment, the extension portion 140 has an outer diameter of 1 mm, which is the same as the diameter of the through-hole 113, but the present invention is not limited thereto. In the present embodiment, the extension 140 is described as having a length of 40 cm, but the present invention is not limited thereto.

Now, a method of using the urethral catheter kit 100 according to the first embodiment will be described. First, the practitioner pushes the urethral catheter 110 through the urethra. The operator inserts the guider mechanism 120 into the fluid passage 111 of the urethral catheter 110 so that the end of the extension portion 140 is positioned at the leading end of the urethral catheter 110 ). At this time, the extension part 140 passes through the through hole 113 of the urethral catheter 110 and passes through the narrowed part, and the body part 130 including the curved part 136 does not pass through the through hole 113 And is accommodated in the inner fluid passage 111 of the urethral catheter 110. In this state, when the urethral catheter 110 is inserted, the urethral catheter 110 is supported by the body portion 130 and passes through the stenotic region. After the introduction of the urethral catheter 110 into the bladder is completed, the guider device 120 is removed and removed, and then the urine discharging process is performed.

The guiding catheter 110 may be first inserted and then inserted into the guider device 120. Alternatively, the guiding catheter 110 may be inserted into the guider device 120 . In addition, although it has been described that the urethral catheter 110 is pushed through the stenosis site at the stenosis site, the guider apparatus 120 may be pushed through the stenosis site.

2 to 3, the urethral catheter 110 is not easily bent by the body portion 130 fitted inside the urethral catheter 110, The inner surface of the urethral catheter 110 is fixed so that a portion narrower than the outer diameter of the urethral catheter 110 can easily pass through.

5 shows a urethral catheter kit according to a second embodiment of the present invention. Referring to FIG. 5, the urethral catheter kit 200 includes a urethral catheter 110 and a guider mechanism 220 used for insertion of the urethral catheter 110. The urethral catheter 110 is the same as the urethral catheter 110 of the first embodiment described with reference to Figs. 2 to 4, and a detailed description thereof will be omitted. 5 and 6, the guider mechanism 220 includes a guide wire 221 and a guider tube 222.

The guide wire 221 is an elongated wire or a member having elasticity and has an outer diameter capable of passing through the through hole 113 formed in the urethral catheter 110 through the fluid passage 111 formed in the urethral catheter 110 . In this embodiment, the guide wire 221 has an outer diameter of 1 mm, which is the same as the through-hole 113 formed in the urethral catheter 110. [ The guide wire 221 has a longer length than the urethral catheter 110. In this embodiment, the length of the guide wire 221 is 130 cm.

The guider tube 222 is in the form of a tube and is provided with a guide passage 223 having a circular cross-section extending along the longitudinal direction and opening at both ends. The guide passage 223 has a diameter larger than the outer diameter of the guide wire 221 so that the guide wire 221 passes therethrough. In the present embodiment, the diameter of the guide passage 223 is 1.2 mm or more. The guider tube 222 has an outer diameter smaller than the diameter of the fluid passage 111 so as to be inserted into the fluid passage 111 of the urethral catheter 110. In this embodiment, the outer diameter of the guider tube 222 is 2 to 6 mm, but the present invention is not limited thereto. The guider tube 222 is longer than the urethral catheter 111 and shorter than the guide wire 221. In the present embodiment, the guider tube 222 is described as being 60 cm, but the present invention is not limited thereto. The guider tube 222 includes a linear portion 223 extending linearly, a curved portion 224 curved in one direction from the tip of the linear portion 223 and a curved portion 224 formed integrally with the linear portion 223 . In the present embodiment, the guider tube 222 is described as being bent at its tip, but it may be a shape in which the entire portion extends in a straight line, which is also within the scope of the present invention.

Now, a method of using the urethral catheter kit 200 according to the second embodiment shown in Fig. 5 will be described. First, the practitioner pushes the urethral catheter 110 through the urethra. The user inserts the guide wire 221 through the fluid passage 111 of the urethral catheter 110 when the urethral catheter 110 is inserted and becomes difficult to be inserted. At this time, the guide wire 140 passes through the narrowed portion through the through hole 113 of the urethral catheter 110. Next, the guider tube 222 is inserted into the fluid passage 111 of the urethral catheter 110 while being inserted into the guidewire 140, and is pushed to the stenosis site. In this state, when the urethral catheter 110 is inserted, the urethral catheter 110 is supported by the guider tube 222 and passes through the stenosis site. After the introduction of the urethral catheter 110 into the bladder is completed, the guide wire 221 and the guider tube 222 are removed and removed, and a urine discharging process is performed.

In the above description of the method of use in the second embodiment, the guide wire 221 is described as being inserted after the urethral catheter 110 is first inserted. Alternatively, the guide wire 221 may be inserted first, 110 may be inserted along the guide wire 221. In addition, although it has been described that the urethral catheter 110 in which the guider tube 222 is inserted is pushed through the stenosis site at the stenosis site, the guider tube 222 may be passed through the stenosis site by pushing the guider tube 222.

5, the guidewire tube 222 is inserted into the fluid passage 111 of the urethral catheter 110 and the guidewire 221 is inserted into the passage 223 of the guider tube 222 ) Of the urethral catheter 110 through the through-hole 113 of the urethral catheter 110 so that the urethral catheter 110 can easily pass through the narrow urethra without being easily bent by the guider tube 222.

Although the present invention has been described with reference to the above embodiments, the present invention is not limited thereto. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

100: Urethral catheter kit 110: Urethral catheter
111: fluid passage 113:
120: Guide mechanism 130: Body part
140: extension part 131: straight part
132: handle portion 136: curved portion
200: Urethral catheter kit 220: Guider instrument
221: guide wire 222: guider tube

Claims (8)

A device for insertion of a urethral catheter having a fluid passageway and a through-hole communicating with the fluid passageway and smaller than the fluid passageway,
A urethral catheter insertion guider having a body portion having a diameter smaller than the diameter of the fluid passage and having an outer diameter larger than the penetrating portion and extending longer than the urethral catheter and an extension portion extending from a distal end of the body portion and having an outer diameter smaller than the diameter of the through- Instrument.
The method according to claim 1,
Wherein the body portion has a straight portion extending in a straight line and a curved portion bent in one direction from a tip of the straight portion,
And the extension part is connected to the distal end of the curved part.
The method according to claim 1,
And a grip portion formed on the body portion,
Wherein the handle is positioned to be exposed to the outside of the urethral catheter when the distal end of the body is inserted into the urethral catheter.
A urethral catheter having a fluid passageway, said urethral catheter communicating with said fluid passageway and provided at its distal end with a penetration smaller than said fluid passageway; And
A body portion having a diameter smaller than the diameter of the fluid passage and having an outer diameter larger than the through-hole and extending longer than the urethral catheter, and an extension portion extending from the distal end of the body portion and having an outer diameter smaller than the diameter of the through- Urethral catheter kit.
A device for insertion of a urethral catheter having a fluid passageway and a through-hole communicating with the fluid passageway and smaller than the fluid passageway,
A guide wire having an outer diameter equal to or smaller than the diameter of the through-hole; And
And a guider tube extending in the longitudinal direction and having guide passages opened at both ends thereof,
Wherein a diameter of the guide passage is larger than an outer diameter of the guide wire, and an outer diameter of the guider tube is smaller than a diameter of the fluid passage.
The method of claim 5,
Wherein the guider tube has a linear portion extending in a straight line and a curved portion bent in one direction from a distal end of the straight portion.
The method of claim 5,
Wherein the guider tube has a handle portion positioned to be exposed to the outside of the urethral catheter when the distal end of the guider tube is inserted into the urethral catheter.
A urethral catheter having a fluid passageway, said urethral catheter communicating with said fluid passageway and provided at its distal end with a penetration smaller than said fluid passageway; And
And a guider mechanism including a guidewire and a guider tube extending in the longitudinal direction and having guide passages open at both ends thereof,
Wherein an outer diameter of the guide wire is equal to or smaller than a diameter of the through-
Wherein a diameter of the guide passage is larger than an outer diameter of the guide wire, and an outer diameter of the guider tube is smaller than a diameter of the fluid passage.
KR1020150036755A 2015-03-17 2015-03-17 Guider instrument for inserting urethral catheter and urethral catheter kit with the same KR20160111721A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020150036755A KR20160111721A (en) 2015-03-17 2015-03-17 Guider instrument for inserting urethral catheter and urethral catheter kit with the same
PCT/KR2016/002332 WO2016148432A1 (en) 2015-03-17 2016-03-09 Guide tool for inserting urethra catheter and urethra catheter kit provided with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150036755A KR20160111721A (en) 2015-03-17 2015-03-17 Guider instrument for inserting urethral catheter and urethral catheter kit with the same

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WO (1) WO2016148432A1 (en)

Cited By (1)

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KR20190137443A (en) * 2018-06-01 2019-12-11 주식회사 나노메드 Medical appliance for urethra expansion

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CN106974717B (en) * 2017-04-14 2023-10-10 江阴市人民医院 Steel wire threading device
CN107773289B (en) * 2017-11-20 2024-04-12 山东大学齐鲁医院 Guide tube special for laparoscopic sleeve gastrectomy

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US4787884A (en) * 1987-09-01 1988-11-29 Medical Engineering Corporation Ureteral stent guidewire system
US5916195A (en) * 1998-02-04 1999-06-29 Argomed Ltd. Internal catheter
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KR101481887B1 (en) 2013-03-27 2015-01-21 전북대학교산학협력단 Catheter and method for inserting catheter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190137443A (en) * 2018-06-01 2019-12-11 주식회사 나노메드 Medical appliance for urethra expansion

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