JP2004121511A - Drainage tube indwelling implement for endoscope - Google Patents

Drainage tube indwelling implement for endoscope Download PDF

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Publication number
JP2004121511A
JP2004121511A JP2002289333A JP2002289333A JP2004121511A JP 2004121511 A JP2004121511 A JP 2004121511A JP 2002289333 A JP2002289333 A JP 2002289333A JP 2002289333 A JP2002289333 A JP 2002289333A JP 2004121511 A JP2004121511 A JP 2004121511A
Authority
JP
Japan
Prior art keywords
guide wire
drainage tube
tube
frequency power
high
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2002289333A
Other languages
Japanese (ja)
Inventor
Keiji Kunii
國井 圭史
Original Assignee
Pentax Corp
ペンタックス株式会社
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 Pentax Corp, ペンタックス株式会社 filed Critical Pentax Corp
Priority to JP2002289333A priority Critical patent/JP2004121511A/en
Publication of JP2004121511A publication Critical patent/JP2004121511A/en
Application status is Pending legal-status Critical

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Abstract

An easy-to-use endoscope for guiding a drainage tube held in the vicinity of a distal end of a guidewire to a predetermined position, allowing the guidewire to be smoothly pulled out of the pusher tube and to retain the drainage tube in that state. To provide a drainage tube indwelling device.
A guide is provided by arranging a high-frequency power supply connector in contact with a base end surface of a base member attached to a base end of a pusher tube and pushing the high-frequency power supply connector forward. When the wire 1 and the pusher tube 4 move forward together and the high-frequency power supply connector 16 is pulled back, the guide wire 1 is pulled out from the inside of the pusher tube 4 and the guide wire is pulled out from the inside of the drainage tube 3 on the distal end side. 1 was pulled out.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an endoscope drainage tube indwelling device that is used by being inserted into a treatment instrument insertion channel of an endoscope in order to indwell a drainage tube in a body cavity.
[0002]
[Prior art]
In general, a drainage tube indwelling device for an endoscope, which is used for a procedure for indwelling a drainage tube in a body endoscopically to discharge secretory fluid accumulated in a pancreatic duct, a bile duct, or the like, is punctured by a living tissue. A flexible guide wire having a puncture portion provided at the distal end, a drainage tube fitted at a position near the distal end of the guide wire and held there by frictional resistance, and a drainage tube attached to the distal end of the guide wire. A flexible pusher tube is provided that is loosely fitted onto the guidewire so that it can be pushed out.
[0003]
A high-frequency power supply connector for connecting a high-frequency power supply cord to the base end of the guide wire so that a high-frequency current can be supplied to the guide wire when the distal end of the guide wire is punctured into a living tissue so as to eliminate bleeding. Is attached.
[0004]
Then, the guide wire is pushed in while the drainage tube is held near the distal end, and when the drainage tube reaches a predetermined position, the base attached to the base end of the pusher tube so that the guide wire can be pulled out from the pusher tube. The member and the high-frequency power supply connector attached to the base end of the guide wire are configured to be freely detachable by a so-called luer lock base (for example, see Patent Document 1).
[0005]
[Patent Document 1]
JP-A-11-318821
[Problems to be solved by the invention]
In the conventional drainage tube indwelling device for an endoscope as described above, after guiding the drainage tube held near the distal end of the guide wire to a predetermined position, the inside of the pusher tube is used to hold the drainage tube there. When performing the operation of pulling out the guide wire, it is necessary to disengage the base end cap of the pusher tube from the high-frequency power supply connector attached to the base end of the guide wire.
[0007]
However, in order to disengage such an engagement, it is necessary to perform a screwing operation or the like using two hands, so that the operation when moving to the operation of pulling out the guide wire becomes complicated and troublesome. In some cases, the drainage tube may be moved from a predetermined position while being stuck.
[0008]
Therefore, the present invention provides an easy-to-use endoscope that, when a drainage tube held near the distal end of a guide wire is guided to a predetermined position, the guide wire can be smoothly pulled out of the pusher tube and the drainage tube can be placed in that state. An object of the present invention is to provide a drainage tube indwelling device for a mirror.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a drainage tube indwelling device for an endoscope of the present invention includes a conductive guide wire provided with a puncture portion at the distal end for puncturing a living tissue, and a position near the distal end of the guide wire. Connects the drainage tube fitted and held there by frictional resistance, the flexible pusher tube loosely fitted to the guide wire so that the drainage tube can be pushed out to the front side of the guide wire, and the high-frequency power cord And a high-frequency power supply connector attached to the proximal end of the guide wire in order to place the high-frequency power supply connector on the proximal end surface of the base member attached to the proximal end of the pusher tube. When the high-frequency power supply connector is pushed forward, The guide wire is pulled out from the inside of the pusher tube, and the guide wire is pulled out from the inside of the drainage tube on the distal end side by moving the shear tube together and moving the high-frequency power supply connector backward. is there.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a drainage tube indwelling device for an endoscope according to an embodiment of the present invention, and 1 is a flexible guide wire made of, for example, a single or stranded wire of a conductive stainless steel wire, The endoscope is formed to have an overall length that is, for example, about 10 to 20 cm longer than the treatment instrument insertion channel of the endoscope to be used, and a distal end puncturing portion 1a for puncturing a living tissue is formed at the distal end portion.
[0011]
The surface of the guide wire 1 is coated with an electrically insulating coating 1b made of a coating of tetrafluoroethylene resin or polyethylene resin or a tube or the like so as to be integrated with the guide wire 1 almost entirely except for the tip puncturing portion 1a. It has been subjected.
[0012]
At a position near the distal end of the guidewire 1, a drainage tube 3 indwelled for draining liquid in the body is covered with an interval of, for example, several mm to 1 cm from the distal puncture portion 1 a at the distal end of the guidewire 1. It is fitted.
[0013]
The drainage tube 3 is a so-called pigtail type drainage tube in which both ends are curled in a natural state as shown by a two-dot chain line. When the drainage tube 3 is placed in a body organ, the curled portions of both ends are accommodated in the organ. It serves as an anchor. However, the drainage tube 3 may be of various types such as straight or S-shaped.
[0014]
The drainage tube 3 is made of, for example, a soft plastic such as a fluororesin. When the drainage tube 3 is fitted on the guide wire 1, it is elastically deformed and straightened. Is held on the guide wire 1 by the frictional resistance generated in the guide wire 1.
[0015]
A pusher tube 4 made of a flexible tube for pushing the drainage tube 3 toward the front side is loosely fitted over the guide wire 1 over the entire length of a portion closer to the hand than the portion where the drainage tube 3 is held.
[0016]
The pusher tube 4 is formed of an electrically insulating flexible tube such as an ethylene tetrafluoride resin or a polyethylene resin, and is fitted to the guide wire 1 so as to be able to advance and retreat. Abuts against the rear end face.
[0017]
Therefore, if the pusher tube 4 is pushed forward along the guide wire 1, the drainage tube 3 can be pushed out from the distal end of the guide wire 1 by an operation from the hand side.
[0018]
The hand main body 11 disposed on the hand side of the drainage tube indwelling device has a luer lock female mouth part 11a detachably attached to an entrance portion of the treatment instrument insertion channel of the endoscope, which is fixed to one end side of the support cylinder body 11b. The cap portion 11c is screwed to the other end of the support tubular portion 11b.
[0019]
A pusher base cap 4a made of, for example, stainless steel and fixedly connected to the base end of the pusher tube 4 is fitted into the support cylinder 11b so as to be able to advance and retreat in the axial direction.
[0020]
Then, a manual fixing screw 13 for arbitrarily fixing the pusher base end base 4a to the hand body 11 is screwed into a screw hole formed on the side surface of the cap portion 11c. Reference numeral 14 denotes a retaining pin for retaining the manual fixing screw 13.
[0021]
Therefore, if the manual fixing screw 13 is loosened, the pusher base end base 4a can be advanced and retracted so as to move the pusher tube 4 in the insertion / removal direction with respect to the treatment instrument insertion channel of the endoscope. Is tightened, the pusher base end cap 4a is fixed to the hand body 11, and the pusher tube 4 does not move with respect to the endoscope.
[0022]
An insulating tubular body 15 made of, for example, an electrically insulating plastic pipe or the like that partially projects from the base end of the pusher base end base 4a is fixed to the base end portion of the guide wire 1 so as to surround the coating 1b. Thus, the pusher is inserted into the pusher base end 4a so as to be able to advance and retreat in the axial direction.
[0023]
A high-frequency power supply connector 16 for connecting a high-frequency power cord (not shown) is attached to the base end of the insulating tubular body 15. The connection terminal 16 a of the high-frequency power supply connector 16 is electrically connected to the guide wire 1. Is electrically conductive.
[0024]
The high-frequency power supply connector 16 is independently movable in the axial direction with respect to the pusher base cap 4a, and is moved forward and backward with respect to the pusher base cap 4a as shown by an arrow A. The guide wire 1 advances and retreats in the axial direction within the pusher tube 4, and the distal puncture portion 1 a of the guide wire 1 projects and retracts with respect to the drainage tube 3 at the distal end side as shown by an arrow B.
[0025]
The high-frequency power supply connector 16 formed in a substantially cylindrical shape is arranged so as to simply contact the base end face of the pusher base end 4a, and the high-frequency power supply connector 16 is moved forward (downward in FIG. 1). By performing the pushing operation, the high-frequency power supply connector 16 comes into contact with the pusher base end base 4a as shown by the two-dot chain line, and the guide wire 1 and the pusher tube 4 move forward together.
[0026]
When the high-frequency power supply connector 16 is simply pulled back backward (upward in FIG. 1), the guide wire 1 is pulled out from the pusher base end 4a, and the guide wire 1 is pulled backward from inside the drainage tube 3 on the distal end side. The drainage tube 3 can be pulled out and placed at the target site. If the manual fixing screw 13 is tightened at this time, the movement of the pusher tube 4 is more completely restricted, and the drainage tube 3 does not move from a predetermined position.
[0027]
2 to 5 sequentially show the operation of placing the drainage tube 3 at the target portion 100 in such a manner. First, as shown in FIG. 2, the inlet mouthpiece of the treatment instrument insertion channel 52 of the endoscope 50 is shown. The luer lock female base 11a of the main body 11 of the drainage tube indwelling device is attached to 52a.
[0028]
When the distal end of the insertion portion 51 of the endoscope 50 is guided to a position suitable for aiming at the target portion 100, the power supply connector 31 of the high-frequency power supply cord 30 is connected to the high-frequency power supply connector 16 (however, the connection is made in advance). May be kept).
[0029]
Then, as shown in FIG. 3, the high-frequency power supply connector 16 is simply pushed forward while a high-frequency current is applied to the guide wire 1, so that the pusher base cap 4 a (and the pusher tube 4) is driven by the high-frequency power. After moving integrally with the power supply connector 16 (and the guide wire 1), the distal puncture portion 1a of the guide wire 1 is punctured into the target portion 100, and the drainage tube 3 is inserted into the target portion 100 with the puncture.
[0030]
When the drainage tube 3 is located at a predetermined position in the target portion 100, as shown in FIG. 4, the guide wire 1 is simply pulled back from the pusher tube 4 by pulling the high-frequency power supply connector 16 backward. After being pulled out, the guide wire 1 is pulled out from the drainage tube 3 on the front side. At this time, if the manual fixing screw 13 is tightened, the pusher tube 4 can be securely fixed.
[0031]
In this way, as shown in FIG. 5, the drainage tube 3 is placed in a desired state with respect to the target portion 100 and is left in the body.
[0032]
【The invention's effect】
According to the present invention, the guide wire and the pusher tube are moved forward together by simply pushing in the high frequency power supply connector, and the guide wire is pulled out from the pusher tube by simply pulling back the high frequency power supply connector. The guide wire is pulled out from the drainage tube, and when the drainage tube held near the distal end of the guide wire is guided to a predetermined position, the guide wire is smoothly pulled out from the pusher tube in this state to facilitate the drainage tube. And it can be detained accurately.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a drainage tube indwelling device for an endoscope according to an embodiment of the present invention.
FIG. 2 is a schematic view of a use state of a drainage tube indwelling device for an endoscope according to an embodiment of the present invention.
FIG. 3 is a schematic view of a use state of the drainage tube indwelling device for an endoscope according to the embodiment of the present invention.
FIG. 4 is a schematic view of a used state of the drainage tube indwelling device for an endoscope according to the embodiment of the present invention.
FIG. 5 is a schematic view of the use state of the drainage tube indwelling device for an endoscope according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Guide wire 1a Tip puncture part 3 Drainage tube 4 Pusher tube 4a Pusher base end cap (base member)
15 Insulating cylinder 16 High frequency power connector

Claims (1)

  1. A conductive guide wire having a puncture portion provided at the distal end thereof for puncturing a living tissue, a drainage tube fitted to a position near the distal end of the guide wire and held there by frictional resistance, and the drainage tube. A flexible pusher tube loosely fitted on the guide wire so as to be pushed out to the tip side of the guide wire, and a high-frequency power supply connector attached to a base end of the guide wire for connecting a high-frequency power cord In an endoscope drainage tube indwelling device having
    The high-frequency power supply connector is placed in contact with the base end surface of a base member attached to the base end of the pusher tube, and the high-frequency power supply connector is pushed forward to operate the guide wire and the pusher. The guide wire is pulled out from the inside of the pusher tube by pulling the high-frequency power supply connector backward with the tube moving forward together, and the guide wire is pulled out from the inside of the drainage tube on the distal end side. A drainage tube indwelling device for an endoscope, which is characterized in that:
JP2002289333A 2002-10-02 2002-10-02 Drainage tube indwelling implement for endoscope Pending JP2004121511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002289333A JP2004121511A (en) 2002-10-02 2002-10-02 Drainage tube indwelling implement for endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002289333A JP2004121511A (en) 2002-10-02 2002-10-02 Drainage tube indwelling implement for endoscope

Publications (1)

Publication Number Publication Date
JP2004121511A true JP2004121511A (en) 2004-04-22

Family

ID=32281529

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002289333A Pending JP2004121511A (en) 2002-10-02 2002-10-02 Drainage tube indwelling implement for endoscope

Country Status (1)

Country Link
JP (1) JP2004121511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012213437A (en) * 2011-03-31 2012-11-08 Fujifilm Corp Drainage tube insertion tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012213437A (en) * 2011-03-31 2012-11-08 Fujifilm Corp Drainage tube insertion tool

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