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WO2013065707A1 - Surtube d'endoscope - Google Patents

Surtube d'endoscope Download PDF

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Publication number
WO2013065707A1
WO2013065707A1 PCT/JP2012/078101 JP2012078101W WO2013065707A1 WO 2013065707 A1 WO2013065707 A1 WO 2013065707A1 JP 2012078101 W JP2012078101 W JP 2012078101W WO 2013065707 A1 WO2013065707 A1 WO 2013065707A1
Authority
WO
WIPO (PCT)
Prior art keywords
overtube
air supply
endoscope
quadrant
bent
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.)
Ceased
Application number
PCT/JP2012/078101
Other languages
English (en)
Japanese (ja)
Inventor
弘晃 三好
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Medical Systems Corp
Original Assignee
Olympus Medical Systems Corp
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 Olympus Medical Systems Corp filed Critical Olympus Medical Systems Corp
Publication of WO2013065707A1 publication Critical patent/WO2013065707A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00082—Balloons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/12—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with cooling or rinsing arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports

Definitions

  • the present invention relates to an endoscopic overtube used for an endoscope for oral or transanal insertion into a body cavity or a lumen and observing or treating the body cavity or the lumen. .
  • an insertion portion of an endoscope is inserted into an overtube and inserted into a body cavity or a cavity together with the overtube. According to this method, since it is guided by the overtube, it is possible to prevent excessive bending and bending of the insertion portion, and the insertion portion of the endoscope can be inserted into a deep portion of a body cavity or a lumen. It becomes possible.
  • the distal end of the endoscope can be smoothly inserted into the complicatedly bent digestive tract cavity.
  • the insertion part of the endoscope is inserted into the digestive tract cavity together with the overtube to which the balloon is attached.
  • the endoscope referred to as the above-described single balloon endoscope can be inserted through an endoscope whose endoscope tip is flexibly bent up and down and left and right, and an insertion portion of the endoscope.
  • a balloon is attached to a tip portion of the overtube, and an overtube capable of supplying or degassing gas (for example, air) to the balloon through an air supply conduit (referred to as air supply / degassing) is formed.
  • degassing gas for example, air
  • the single balloon endoscope When the single balloon endoscope is inserted into a body cavity or lumen, for example, a deep part of the small intestine or large intestine, first, the single balloon endoscope is inserted into the digestive tract cavity. Next, the balloon attached to the distal end portion of the overtube is inflated, and the distal end portion of the overtube is fixed to the lumen wall in the digestive tract cavity. The endoscope is inserted deep into the digestive tract cavity through the insertion portion of the overtube. The distal end portion of the endoscope is angled to grip the digestive tract wall, and the endoscope is fixed. The balloon is deflated and the tip of the overtube is released.
  • the overtube is guided by the endoscope and inserted into the deep part of the digestive tract cavity in the same manner as the endoscope.
  • Patent Document 1 discloses an overtube that can be fixed at a plurality of different predetermined positions in a body cavity or a lumen by selectively inflating a plurality of balloons.
  • the overtube includes an overtube main body having an insertion channel through which the endoscope is inserted, and a plurality of balloons that are attached at predetermined different positions on the outer peripheral surface of the overtube main body and that can be individually inflated or deflated. It has.
  • the overtube body has flexibility.
  • the overtube has a plurality of air supply caps and a plurality of air supply conduits for supplying air to each balloon. Each of the air supply caps individually communicates with the balloon through the respective air supply conduit. For this reason, the overtube can be easily and reliably fixed in a body cavity or a lumen.
  • the endoscope overtube is flexible and is provided on the outer tube body having a passage through which the insertion portion of the endoscope is inserted and the outer peripheral surface on the distal end side of the overtube body, and expands in the overtube radial direction.
  • a deflatable balloon at least one air supply line that is arranged in parallel with the passage in the overtube body, and that feeds and degass the gas into the balloon, and a gas supply source for introducing gas into the air supply line And a first connecting portion for connecting the two.
  • FIG. 1 is a schematic partial cross-sectional view of an endoscope overtube according to an embodiment of the present invention.
  • FIG. 2 is a view illustrating a side surface of the endoscope overtube in which the tube main body is bent.
  • FIG. 3A is a diagram illustrating a configuration example of the endoscope overtube according to the first embodiment.
  • FIG. 3B is a diagram illustrating a configuration example of the endoscope overtube according to the first embodiment.
  • FIG. 4A is a diagram illustrating a configuration example of an endoscope overtube according to the second embodiment.
  • FIG. 4B is a diagram illustrating a configuration example of the endoscope overtube according to the second embodiment.
  • FIG. 4A is a diagram illustrating a configuration example of an endoscope overtube according to the second embodiment.
  • FIG. 5A is a diagram illustrating a configuration example of an endoscope overtube according to a third embodiment.
  • FIG. 5B is a diagram illustrating a configuration example of the endoscope overtube according to the third embodiment.
  • FIG. 6A is a diagram illustrating a configuration example of an endoscope overtube according to a fourth embodiment.
  • FIG. 6B is a diagram illustrating a configuration example of the endoscope overtube according to the fourth embodiment.
  • FIG. 1 is a schematic partial cross-sectional view of an endoscope overtube 1 according to an embodiment of the present invention.
  • an overtube 1 having a passage through which an insertion portion 30a of an endoscope 30 is inserted is provided on an overtube body 3a to be inserted into a subject and a distal end side of the overtube body 3a.
  • a base end portion 9 provided with a grip portion 9a for gripping on the hand side.
  • the distal end portion on the distal tip 3 b side is referred to as the distal end portion of the overtube 1
  • the rear end portion on the gripping portion 9 a side is referred to as the rear end portion of the overtube 1.
  • An endoscope (not shown) is inserted from the insertion channel 2 serving as a passage on the proximal end side and penetrates to the distal end portion.
  • the tube body 3a has an insertion channel 2 for inserting or removing the endoscope, and air supply pipelines 6, 21, 22, and 23 provided alongside the insertion channel 2.
  • the insertion channel 2 and the air supply pipelines 6, 21, 22, and 23 in the overtube body 3a are provided so that the endoscope penetrates from the entrance of the base end portion 9 to the distal tip 3b.
  • the overtube body 3a is formed of a soft member.
  • the overtube body is formed of a synthetic resin or the like.
  • An annular tip 3b is bonded to the tip of the overtube body 3a.
  • the proximal end portion 9 is provided with a grip portion 9 a for gripping, a first connection portion 5, and a second connection portion 8.
  • the balloon 4 is formed in an annular shape on the outer periphery on the distal end side of the overtube body 3a.
  • the balloon 4 is formed of an elastic member that expands and contracts, such as rubber.
  • the balloon 4 is communicated from the first connecting portion 5 by at least one arc-feeding air duct 6, 21, 22, 23 that penetrates the inside of the overtube body 3 a.
  • the length of the arc in the arc-shaped air supply pipelines 6, 21, 22, and 23 is referred to as a pipeline width.
  • a gas supply source (not shown) such as a syringe is airtightly connected to the first connection portion 5, and gas inside the balloon 4, for example, air is deaerated.
  • FIG. 2 is a diagram illustrating a side surface of the overtube 1 in a state where the overtube 1 is bent.
  • the overtube main body 3 is inserted along the intestinal tract in a lumen that is bent in a complicated manner together with the endoscope, for example, according to the lead of the overtube main body 3b through the insertion channel 2 through the endoscope.
  • an air supply source is connected to the first connection portion 5, and a gas, for example, air is supplied to the balloon 4 from the opening 7 through the air supply pipelines 6, 21, 22, 23 communicated from the air supply source to the balloon 4. It is aired.
  • the balloon 4 of the overtube 3 is inflated, and the tip of the overtube body 3 is fixed in the body cavity or the lumen.
  • the balloon 4 when performing an endoscopic treatment for a bile and pancreatic disease such as a gastrectomy patient, the balloon 4 is inflated and fixed in the overtube 3 in the body cavity or in the vicinity of the duodenum in the lumen. Then, along the insertion channel 2 of the fixed overtube 3, the endoscope 30, for example, the small intestine scope 30, is inserted to the duodenum.
  • the small intestine scope 30 is temporarily removed from the overtube 1 and replaced with an endoscope 30 having a shorter effective length than the small intestine scope 30, for example, the upper digestive tract general purpose scope 30.
  • the small intestine scope 30 is replaced, if the inserted small intestine scope 30 is pulled out, the bent portion of the overtube 1 in the body cavity or the lumen may be bent, and the air supply duct 6 may be crushed. is there.
  • FIGS. 3A and 3B are diagrams showing a configuration example of the endoscope overtube 1 according to the first embodiment.
  • This embodiment is an example in which one air supply conduit is formed so as to be in two quadrants as an example.
  • FIG. 3A shows a line AA cross-sectional configuration of the overtube 1 without a bent portion
  • FIG. 3B shows a line BB cross-sectional configuration of the overtube 1 in a bent state.
  • the first quadrant 11a and the second quadrant 11b are each divided into a line perpendicular to the central axis of the overtube main body 3, for example, a section of the tube section divided by a perpendicular.
  • the left side is the first quadrant and the right side is the second It is a quadrant.
  • This embodiment shows an example of one air supply conduit 6 having a conduit width that passes through the second quadrant 11b from the upper portion of the first quadrant 11a and connects to the lower portion of the first quadrant 11a.
  • the air supply pipeline 6 has a pipeline width that is at least half the circumference of the circumference of the cross section of the overtube body 3a.
  • the overtube body 3a when the overtube body 3a is bent, the upper half of the air supply conduit 6 in the lower half of the tube cross section of the overtube body 3a is crushed and closed. Since the portion of the air supply duct 6 can be vented without being crushed, the balloon 4 can be supplied and deaerated.
  • any part of the air supply conduit 6 shown in FIG. 3A can be vented without being crushed. Is possible.
  • FIGSecond Embodiment 4A and 4B are diagrams illustrating a configuration example of the endoscope overtube 1 according to the second embodiment.
  • 4A shows a cross-sectional configuration along line AA of the overtube 1 without bending
  • FIG. 4B shows a cross-sectional configuration along line BB of the overtube 1 in a bent state.
  • the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
  • the first and second quadrants 11a and 11b are provided.
  • the air supply line 21 communicating with the first connection portion 5 branches in the route to the air supply line and communicates with each of the air supply lines 21a and 21b (not shown). Both of these air supply conduits 21a and 21b have a conduit width from the vicinity of the bottom of the lower part of each quadrant to the vicinity of the top of the upper part.
  • the overtube body 3a when the overtube body 3a is bent, the lower half air supply conduit 21 in the tube cross section of the overtube body 3a is blocked. However, since the portion of the upper half air supply duct 21 can be vented without being crushed, the balloon 4 can be supplied and deaerated. Further, even when the overtube main body 3a is bent in a direction other than FIG. 4B, any part of the air supply conduit 21 shown in FIG. 4A can be vented without being crushed. Is possible.
  • FIGS. 5A and 5B are diagrams illustrating a configuration example of the endoscope overtube 1 according to the third embodiment.
  • the same components as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted.
  • the air supply conduits 22a and 22b are formed in the overtube main bodies 3a of the first and second quadrants 11a and 11b, and the first quadrant 11a to the second quadrant 11b are formed.
  • the air supply line 22 communicating with the first connection portion 5 branches in the path of the air supply line and communicates with each of the air supply lines 22a, 22b, and 22c (not shown).
  • FIG. 5A shows a cross-sectional configuration of line segment AA of overtube 1 without bending
  • FIG. 5B shows a cross-sectional configuration of line segment BB of overtube 1 in a bent state.
  • any one of the air supply conduits 222a, 22b, and 22c becomes the overtube main body 3a. It is arranged to come to the side that does not collapse. As shown in FIG. 5B, even if the lower half of the overtube body 3a is crushed, as long as at least one air supply conduit 22 is disposed in the upper half of the overtube body 3a that is not crushed.
  • the air supply conduits 22 need not be arranged at equal intervals.
  • the lower half of the overtube body 3a that is, the air supply conduit 22 on the side where the tube cross section shown in FIG. Since the air supply pipe line 22 arranged in the upper half of the cross section of the pipe shown in FIG. 5 can be vented without being crushed, the balloon 4 can be fed and degassed.
  • any part of the air supply conduit 22 shown in FIG. 5A can be vented without being crushed. Is possible.
  • FIGS. 6A and 6B are diagrams illustrating a configuration example of the endoscope overtube according to the fourth embodiment.
  • the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
  • the present embodiment is an example in which two air supply conduits 23a, 23b, 23c, and 23d are formed in each of the overtube main bodies 3a of the first and second quadrants 11a and 11b. That is, four air supply pipelines 23a, 23b, 23c, and 23d having the same pipeline width are arranged at equal intervals on the circumference.
  • the air supply line 23 communicating with the first connection portion 5 branches in the path of the air supply line and communicates with each of the air supply lines 23a, b, c, and d (not shown).
  • FIG. 6A shows a cross-sectional configuration of the overtube line segment AA without collapse
  • FIG. 6B shows a cross-sectional configuration of the overtube line segment BB in a collapsed state.
  • two air supply conduits 23a, 23b, 23c and 23d are provided in each quadrant 11a and 11b of the cross section of the overtube main body 3a. An example in which they are arranged at equal intervals is shown. If at least one air supply conduit 23 is arranged on the side of the overtube main body 3a that is not crushed with the overtube 1 bent, the air supply conduits 23 may not be arranged at equal intervals. .
  • the lower half air supply conduit 23 in the cross section of the overtube body 3a is blocked.
  • the air supply duct 23 in the upper half can be ventilated without being crushed, so that the balloon 4 can be fed and degassed.
  • any part of the air supply conduit 23 shown in FIG. 6A can be vented without being crushed. Is possible.
  • each embodiment has been described with a limited number.
  • at least one air supply conduit is arranged in the upper half that is not crushed by the overtube body 3a. If so, the number of air supply pipelines is not limited.
  • the symbol ⁇ shown in FIG. 2 indicates the bending angle of the overtube body 3a.
  • the bending angle ⁇ is an angle formed between a front end portion side and a rear end portion side with respect to an arbitrary point on a straight line parallel to the longitudinal axis and following the outer periphery of the overtube main body 3a.
  • the bending angle ⁇ is 180 °
  • a cross section BB where the outer peripheral surface intersects the longitudinal axis perpendicularly is shown.
  • the angle is smaller than 180 °.
  • the overtube main body 3a When the overtube main body 3a has a straight line that follows the outer peripheral surface on the front end side and a straight line that follows the outer peripheral surface on the rear end side from the cross section BB that is the center of bending, the bending angle ⁇ is 90 °. Further, when the distal end side and the rear end side of the overtube main body 3a come into contact with the bent portion, the bent angle ⁇ is 0 °. That is, the overtube main body 3a changes, for example, from a straight state to a bent state as shown in FIG. 2 and a state in which the front end side and the rear end side abut on the bending point.
  • the air supply pipelines 6, 21, 22, and 23 are located between the distal tip 3b side and the proximal end portion 9 side of the bent portion. Gas communication between the two is not interrupted.
  • the bending direction and state of the overtube 1 are not limited.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

La présente invention concerne un surtube (1) d'endoscope comprenant : un corps principal (3a) du surtube qui est flexible et qui comprend une voie à travers laquelle une partie d'insertion d'un endoscope est insérée ; un ballon (4) qui est disposé sur la surface périphérique extérieure du côté de l'extrémité avant du corps principal (3a) du surtube et qui peut être déployé et contracté dans la direction du diamètre du surtube ; au moins une voie de tube d'approvisionnement en gaz (6) qui est disposée à l'intérieur du corps principal (3a) du surtube parallèlement à la voie, et qui permet d'approvisionner en gaz l'intérieur du ballon (4) et de retirer un gaz hors du ballon (4) ; et une première partie de connecteur (5) destinée à relier une source d'approvisionnement en gaz pour apporter un gaz vers la voie de tube d'approvisionnement en gaz (6).
PCT/JP2012/078101 2011-10-31 2012-10-31 Surtube d'endoscope Ceased WO2013065707A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011239353A JP2015012878A (ja) 2011-10-31 2011-10-31 内視鏡用オーバーチューブ
JP2011-239353 2011-10-31

Publications (1)

Publication Number Publication Date
WO2013065707A1 true WO2013065707A1 (fr) 2013-05-10

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PCT/JP2012/078101 Ceased WO2013065707A1 (fr) 2011-10-31 2012-10-31 Surtube d'endoscope

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WO (1) WO2013065707A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022208737A1 (fr) * 2021-03-31 2022-10-06 オリンパス株式会社 Surtube d'endoscope

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10290837A (ja) * 1997-04-18 1998-11-04 Kanegafuchi Chem Ind Co Ltd バルーンカテーテル及びそれに用いるマルチルーメンシャフトの製造方法
WO2003013348A1 (fr) * 2001-08-02 2003-02-20 Tadanori Munemoto Dispositif a endoscope
JP2011010952A (ja) * 2009-07-03 2011-01-20 Fujifilm Corp 内視鏡装置用バルーンユニットおよび内視鏡装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10290837A (ja) * 1997-04-18 1998-11-04 Kanegafuchi Chem Ind Co Ltd バルーンカテーテル及びそれに用いるマルチルーメンシャフトの製造方法
WO2003013348A1 (fr) * 2001-08-02 2003-02-20 Tadanori Munemoto Dispositif a endoscope
JP2011010952A (ja) * 2009-07-03 2011-01-20 Fujifilm Corp 内視鏡装置用バルーンユニットおよび内視鏡装置

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