WO2019202764A1 - Outil de traitement - Google Patents

Outil de traitement Download PDF

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Publication number
WO2019202764A1
WO2019202764A1 PCT/JP2018/042668 JP2018042668W WO2019202764A1 WO 2019202764 A1 WO2019202764 A1 WO 2019202764A1 JP 2018042668 W JP2018042668 W JP 2018042668W WO 2019202764 A1 WO2019202764 A1 WO 2019202764A1
Authority
WO
WIPO (PCT)
Prior art keywords
recovery
snare wire
tip
wire
state
Prior art date
Application number
PCT/JP2018/042668
Other languages
English (en)
Japanese (ja)
Inventor
工藤　貢一
Original Assignee
オリンパス株式会社
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 オリンパス株式会社 filed Critical オリンパス株式会社
Publication of WO2019202764A1 publication Critical patent/WO2019202764A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor

Definitions

  • Patent Document 1 discloses a high-frequency snare in which a net-like bag is attached to a loop portion of a snare wire of a high-frequency incision tool.
  • the high-frequency snare disclosed in Patent Document 1 can continuously perform excision and recovery of a lesion.
  • the snare wire can be changed from a first state to a second state in which the snare wire is unlocked from the recovery tip portion to form a loop smaller than the second loop shape as the operation wire is retracted.
  • the collecting member is configured to be changed to a recovery state of reduced diameter of the second loop shape of the collecting tip in the second state.
  • the treatment instrument 1 As shown in FIG. 1, the treatment instrument 1 according to this embodiment is used by being inserted into a treatment instrument channel 302 formed in an endoscope insertion portion 301 of an endoscope apparatus 300.
  • the treatment instrument 1 includes a sheath 10, a treatment member 20, a recovery member 30, and an operation unit 40.
  • Each loop shape of the snare wire 2 and the recovery tip portion 5 may be a closed loop.
  • the loop is opened in an elliptical shape or an annular shape, and the shape is formed so as to surround the lesion P to be excised. If possible.
  • the operation wire 3 retracts with respect to the sheath 10 and the recovery operation portion 6, and as shown in FIG. 5, the snare wire 2 moves to the proximal end side.
  • the proximal end portion of the snare wire 2 is accommodated in the lumen 11 of the sheath 10, and the snare wire 2 forms a loop smaller than the second loop shape of the recovery distal end portion 5 (second state).
  • the snare wire 2 is exposed in the second loop shape of the recovery tip portion 5 from the hollow portion 50 via the slit 51 of the recovery tip portion 5 as the diameter of the opening gradually decreases.
  • the surgeon operates the high frequency power supply device to supply a high frequency current to the snare wire 2 via the power supply connector 44.
  • the aspect in which the high-frequency current flows through the snare wire 2 in the second state to cut the tissue is the same as in the first embodiment.
  • the recovery operation portion is retracted, and the proximal end portion of the recovery distal end portion 5A is stored in the lumen 11 of the sheath 10, and the sheath 10 of the recovery distal end portion 5A is stored.
  • the amount of protrusion from the surface is reduced, and the opening diameter of the second loop shape is reduced (recovered state).
  • the collection tip 5 having a reduced diameter surrounds the separated tissue, and the separated tissue is gripped by the collection tip 5.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Vascular Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Otolaryngology (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un outil de traitement (1) qui comprend : un élément de traitement (20) comprenant un fil d'anse (2) ayant une première forme de boucle, et un fil d'opération (3) ayant une pointe reliée au fil d'anse ; et un élément de récupération (30) comprenant une section de pointe de récupération (5) ayant une seconde forme de boucle et une force de retour élastique supérieure à celle du fil d'anse, et une section d'opération de récupération (6) qui est rétractable par rapport au fil d'opération. L'élément de traitement est constitué de façon à pouvoir passer d'un premier état, dans lequel le fil d'anse suit la seconde forme de boucle, entre en contact avec la section de pointe de récupération et est verrouillé, à un second état, dans lequel une boucle plus petite que la seconde forme de boucle est formée. L'élément de récupération est constitué de façon à pouvoir passer, après le second état, à un état de récupération dans lequel la seconde forme de boucle de la section de pointe de récupération est réduite en diamètre.
PCT/JP2018/042668 2018-04-20 2018-11-19 Outil de traitement WO2019202764A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-081435 2018-04-20
JP2018081435A JP2019187616A (ja) 2018-04-20 2018-04-20 処置具

Publications (1)

Publication Number Publication Date
WO2019202764A1 true WO2019202764A1 (fr) 2019-10-24

Family

ID=68239483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/042668 WO2019202764A1 (fr) 2018-04-20 2018-11-19 Outil de traitement

Country Status (2)

Country Link
JP (1) JP2019187616A (fr)
WO (1) WO2019202764A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020029A1 (fr) * 1993-03-11 1994-09-15 Wilson Greatbatch Ltd. Dispositif chirurgical laparoscopique d'agrippement
US5814052A (en) * 1995-06-29 1998-09-29 Nakao; Naomi L. Surgical cauterization snare with ligating suture
JP2010527697A (ja) * 2007-05-21 2010-08-19 エピテック インコーポレイテッド 左心房付属器の閉塞
US7806894B1 (en) * 2006-06-28 2010-10-05 New England Association Of Gynecologic Laparoscopists, Llp Hemostasis and transection of tissue
JP2016150044A (ja) * 2015-02-16 2016-08-22 国立大学法人鳥取大学 内視鏡用処置具
WO2017183161A1 (fr) * 2016-04-21 2017-10-26 オリンパス株式会社 Dispositif de ligature

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020029A1 (fr) * 1993-03-11 1994-09-15 Wilson Greatbatch Ltd. Dispositif chirurgical laparoscopique d'agrippement
US5814052A (en) * 1995-06-29 1998-09-29 Nakao; Naomi L. Surgical cauterization snare with ligating suture
US7806894B1 (en) * 2006-06-28 2010-10-05 New England Association Of Gynecologic Laparoscopists, Llp Hemostasis and transection of tissue
JP2010527697A (ja) * 2007-05-21 2010-08-19 エピテック インコーポレイテッド 左心房付属器の閉塞
JP2016150044A (ja) * 2015-02-16 2016-08-22 国立大学法人鳥取大学 内視鏡用処置具
WO2017183161A1 (fr) * 2016-04-21 2017-10-26 オリンパス株式会社 Dispositif de ligature

Also Published As

Publication number Publication date
JP2019187616A (ja) 2019-10-31

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