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WO2021002272A1 - Dispositif de ligature de tissu, élément de fixation de fil de suture et procédé de production de dispositif de ligature de tissu - Google Patents

Dispositif de ligature de tissu, élément de fixation de fil de suture et procédé de production de dispositif de ligature de tissu Download PDF

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Publication number
WO2021002272A1
WO2021002272A1 PCT/JP2020/025038 JP2020025038W WO2021002272A1 WO 2021002272 A1 WO2021002272 A1 WO 2021002272A1 JP 2020025038 W JP2020025038 W JP 2020025038W WO 2021002272 A1 WO2021002272 A1 WO 2021002272A1
Authority
WO
WIPO (PCT)
Prior art keywords
suture
fixing
fixing portion
tissue
end side
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/JP2020/025038
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English (en)
Japanese (ja)
Inventor
稔 小野
一郎 佐久間
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.)
University of Tokyo NUC
Original Assignee
University of Tokyo NUC
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 University of Tokyo NUC filed Critical University of Tokyo NUC
Publication of WO2021002272A1 publication Critical patent/WO2021002272A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/04—Surgical instruments, devices or methods for suturing wounds; Holders or packages for needles or suture materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/11—Surgical instruments, devices or methods for performing anastomosis; Buttons for anastomosis

Definitions

  • the present invention relates to medical technology, and relates to a tissue ligating device, a suture fixing member, and a method for manufacturing a tissue ligating device.
  • suturing and ligating tissue is very important in many procedures, but it is a difficult procedure that requires skill.
  • various procedures such as surgery have been carried out using an endoscope, a laparoscope, a thoracoscope and the like.
  • endoscope a laparoscope
  • a thoracoscope a thoracoscope
  • a particularly difficult task in suturing and ligating is to tie a suture to form a knot. If the knot of the suture is loosened, the suture and ligature may be released, causing complications.
  • one of the objects of the present invention is to provide a tissue ligating device, a suture fixing member, and a method for manufacturing a tissue ligating device that facilitates the fixation of sutures.
  • the suture having the first end and the second end, the first fixing portion fixing the first end side of the suture, and the second fixing connected to the first fixing portion. It is provided with a second fixing portion for fixing the second end side of the suture after the tissue is ligated with the suture, and the first end side of the suture provides the first fixing portion.
  • a device for tissue ligation is provided that penetrates and projects the first end of the suture from the first fixation.
  • the first end of the suture may protrude from the first fixing portion so that the first end side of the suture is sandwiched between the tweezers.
  • the tissue ligation device described above may further include a suture needle connected to the second end of the suture.
  • the second fixing portion may include a support portion connected to the first fixing portion and a grip portion connected to the support portion.
  • the second end side of the suture is inserted between the support portion and the grip portion, and the support portion and the grip portion are joined.
  • the second end side of the suture may be fixed to the second fixing portion.
  • the support portion and the grip portion may be substantially parallel before fixing the second end side of the suture.
  • the above-mentioned tissue ligation device may further include a guide end connected to the grip, and the guide end may be inclined so as to move away from the support in the direction opposite to the grip.
  • the first fixing portion may include an upper portion to which the supporting portion of the second fixing portion is connected, and the upper portion may be inclined so as to be away from the supporting portion with respect to the supporting portion.
  • the suture fixing member for fixing the suture having the first end and the second end, and the first fixing portion for fixing the first end side of the suture
  • a second fixing portion connected to the first fixing portion, the second fixing portion is provided with a second fixing portion for fixing the second end side of the suture after the tissue is ligated by the suture.
  • the first fixing portion may include an upper portion, both side portions, and a bottom portion to which the second fixing portion is connected, and a groove may be provided from the bottom portion to the upper portion side.
  • both sides may be substantially parallel.
  • the groove may include an introduction portion having a width capable of introducing the suture from the bottom and a holding portion for holding the suture introduced from the introduction portion.
  • the introduction portion may be narrowed by sandwiching both side portions of the first fixing portion.
  • the groove may further include a narrowed portion having a width that the suture held in the holding portion cannot enter from the holding portion.
  • the narrowed portion may be narrowed by sandwiching both side portions of the first fixing portion.
  • a suture having a first end and a second end is prepared, and a first fixing portion for fixing the first end side of the suture is connected to the first fixing portion.
  • a suture fixing member including a second fixing portion for fixing the second end side of the suture after the tissue is ligated with the suture is prepared.
  • the first end side of the suture is set to the first fixing part so that the first end side of the suture penetrates the first fixing part of the suture fixing member and the first end of the suture protrudes from the first fixing part.
  • the first end side of the suture is set so as to sandwich the first end side of the suture with tweezers and the first end of the suture protrudes from the first fixing portion. 1 It may be fixed to a fixed portion.
  • the first fixing portion includes an upper part, both side parts, and a bottom part to which the second fixing part is connected, and a groove is provided from the bottom part to the upper part side for fixing. It may further include threading the suture through the groove prior to doing so.
  • both sides of the first fixing portion may be substantially parallel before the first end side of the suture is fixed to the first fixing portion.
  • the groove is introduced from an introduction portion having a width that allows the suture to be introduced from the bottom before the first end side of the suture is fixed to the first fixing portion, and an introduction portion.
  • the suture may be introduced from the introduction portion of the groove to the holding portion by providing a holding portion for holding the suture and passing the suture through the groove.
  • both sides of the first fixing portion may be sandwiched to narrow the introduction portion of the groove.
  • the groove may further include a stenotic portion having a width that the suture held in the holding portion cannot enter from the holding portion.
  • both sides of the first fixing portion may be sandwiched to narrow the narrowed portion.
  • tissue ligating device a suture fixing member, and a method for manufacturing a tissue ligating device that facilitates fixation of a suture.
  • FIG. 1 It is a schematic perspective view which shows the use method of the tissue ligation device which concerns on embodiment. It is a schematic perspective view which shows the use method of the tissue ligation device which concerns on embodiment. It is a schematic front view which shows the suture thread fixing member before fixing the 1st end side of the suture thread which concerns on embodiment. It is a schematic perspective view which shows the suture thread fixing member before fixing the 1st end side of the suture thread which concerns on embodiment.
  • the tissue ligation device includes a suture thread 10 having a first end 11 and a second end 12, and a suture thread fixing member 20 for fixing the suture thread 10. .
  • the suture thread fixing member 20 has a first fixing portion 30 that fixes the first end 11 side of the suture thread 10 and a second fixing portion 30 that is connected to the first fixing portion 30.
  • the portion 40 includes a second fixing portion 40 for fixing the second end 12 side of the suture 10 after the tissue is ligated by the suture 10.
  • the tissue ligation device according to the embodiment is used for tissue ligation.
  • the tissue refers to a tissue constituting the body such as a human or an animal, and refers to an organ, a blood vessel, a muscle, a skin, or the like, but is not particularly limited.
  • the tissue ligation device according to the embodiment is made of, for example, biocompatible stainless steel, but the material of the tissue ligation device according to the embodiment is not limited to this.
  • the suture 10 is made of, for example, polypropylene, but is not limited thereto.
  • the first end 11 side of the suture thread 10 penetrates the first fixing portion 30 of the suture thread fixing member 20, and the suture thread 10
  • the first end 11 projects from the first fixing portion 30 of the suture thread fixing member 20.
  • the first end 11 of the suture thread 10 protrudes from the first fixing portion 30 of the suture thread fixing member 20 so that the first end 11 side of the suture thread 10 is sandwiched between the tweezers.
  • the length of the suture thread 10 protruding from the first fixing portion 30 of the suture thread fixing member 20 on the first end 11 side is not particularly limited.
  • the length of the suture thread 10 protruding from the first fixing portion 30 of the suture thread fixing member 20 on the second end 12 side is not particularly limited.
  • the tissue ligation device according to the embodiment further includes a suture needle 50 connected to the second end 12 of the suture thread 10, as shown in FIG.
  • the second fixing portion 40 of the suture thread fixing member 20 has a support portion 41 connected to the first fixing portion 30 and a grip portion 42 connected to the support portion 41. Be prepared.
  • the support portion 41 is connected to the first fixing portion 30 at the bottom.
  • the grip portion 42 is connected above the support portion 41 via the folded portion 43.
  • the folded-back portion 43 is folded back in a hairpin shape.
  • the suture thread fixing member 20 may include a plurality of grip portions 42.
  • the suture fixing member 20 includes two grips 42 symmetrically with respect to the support 41.
  • the second end side of the suture 10 is inserted into the groove between the support 41 and the grip 42 and passed through, as shown in FIGS. 4 to 6.
  • the support portion 41 and the grip portion 42 are crimped by the tweezers 60 or the like, the support portion 41 and the grip portion 42 are crimped, and the support portion 41 and the grip portion 42 are joined to form the second end side of the suture thread 10. It is fixed between the support portion 41 and the grip portion 42 of the second fixing portion 40 of the suture thread fixing member 20. This forms a suture loop.
  • the second end side is not limited to the vicinity of the second end, and may be any place of the suture thread 10 as long as it is on the opposite side of the first end with respect to the suture thread fixing member 20.
  • the suture thread fixing member 20 may further include a guide end 44 connected to the grip 42.
  • the guide end 44 is inclined so as to move away from the support 41, for example, in the direction opposite to the grip 42. This makes it easy to insert the suture thread 10 into the groove between the support portion 41 and the grip portion 42.
  • the first fixing portion 30 of the suture thread fixing member 20 includes, for example, an upper portion 31 to which the supporting portion 41 of the second fixing portion 40 is connected so that the shoulder of the upper portion 31 moves away from the supporting portion 41 with respect to the supporting portion 41. It is inclined to. This also facilitates inserting the suture thread 10 into the groove between the support portion 41 and the grip portion 42.
  • the tissue 70 to be sutured and ligated is sewn with the suture needle 50 and the suture thread 10.
  • the suture thread fixing member 20 since the suture thread fixing member 20 is wider than the suture thread 10, the suture thread fixing member 20 stays on the tissue 70 even when the suture thread 10 is pulled. Therefore, the first end 11 of the suture 10 is prevented from passing through the tissue 70.
  • the second end 12 side of the suture thread 10 is formed into a groove between the support portion 41 and the grip portion 42 of the suture thread fixing member 20. Pass through. After that, as shown in FIG.
  • the support portion 41 and the grip portion 42 are joined by a tweezers 60 or the like, and the second end side of the suture thread 10 is attached to the support portion 41 of the second fixing portion 40 of the suture thread fixing member 20. It is fixed between the grip portion 42 and the grip portion 42. This prevents the second end 12 of the suture 10 from passing through the tissue 70.
  • the suture thread fixing member 20 is tilted on the tissue 70, or the suture thread fixing member 20 If is buried in the fat on the tissue 70, as it is, the second end 12 side of the suture 10 is placed between the support portion and the grip portion of the second fixing portion 40 of the suture fixing member 20. It can be difficult to thread through the ditch. Further, before passing the second end 12 side of the suture thread 10 through the groove between the support portion 41 and the grip portion 42 of the second fixing portion 40 of the suture thread fixing member 20, the second fixing of the suture thread fixing member 20 is performed.
  • the suture thread fixing member 20 When the suture thread fixing member 20 is raised or moved by sandwiching the suture thread fixing member 20 with a chisel or the like so that the suture thread 10 can be easily passed through the groove between the support portion 41 and the grip portion 42 of the portion 40, the suture thread is raised or moved.
  • the groove between the support portion 41 and the grip portion 42 of the second fixing portion 40 may be closed by the above.
  • the suture thread fixing member 20 can be made upright or appropriately moved with respect to the tissue without closing the groove between the support portion 41 and the grip portion 42 of the second fixing portion 40 by sandwiching the suture thread fixing member 20 with a ligature or the like. Is easy. Therefore, it is easy to pass the second end 12 side of the suture thread 10 through the groove between the support portion 41 and the grip portion 42 of the second fixing portion 40 of the suture thread fixing member 20.
  • the instrument that sandwiches the first end 11 of the suture thread 10 is not limited to tweezers, and may be forceps or the like, and is not particularly limited.
  • the suture thread After fixing the second end 12 side of the suture thread 10 between the support portion 41 and the grip portion 42 of the second fixing portion 40 of the suture thread fixing member 20, the suture thread does not form a loop of the suture thread 10.
  • the first end 11 side and the second end 12 side of 10 may be cut from the suture thread fixing member 20 and removed from the body.
  • the suture thread fixing member 20 before fixing the first end 11 side of the suture thread 10 is prepared.
  • the first fixing portion 30 has the first end 11 side of the suture thread 10 penetrating the first fixing portion 30, and the suture thread 10 The first end 11 is configured to protrude from the first fixing portion 30.
  • the first fixing portion 30 includes, for example, an upper portion 31 to which the support portion 41 of the second fixing portion 40 is connected, and both side portions 32. It includes a bottom 33. Both side portions 32 of the first fixing portion 30 may be substantially parallel.
  • a groove 35 is provided from the bottom 33 to the upper 31 side of the first fixing portion 30.
  • the groove 35 is located at the center with respect to both side portions 32, for example.
  • the groove 35 has an introduction portion 36, a holding portion 37 communicating with the introduction portion 36, and a narrowed portion 38 communicating with the holding portion 37 from the bottom 33 side.
  • the introduction portion 36 of the groove 35 has a width that allows the suture thread 10 to be introduced from the bottom portion 33 to the holding portion 37.
  • the width of the introduction portion 36 of the groove 35 is, for example, narrower than the width of the unpressurized suture, but equal to or greater than the width that the pressurized suture can take.
  • the holding portion 37 of the groove 35 holds the suture thread 10 introduced from the introducing portion 36. At least a part of the cross-sectional shape of the holding portion 37 is substantially the same as, for example, at least a part of the cross-sectional shape of the suture thread 10.
  • the width of the holding portion 37 of the groove 35 is, for example, substantially the same as the width of the suture 10 under no pressure.
  • the narrowed portion 38 of the groove 35 has a width that the suture held in the holding portion 37 cannot be inserted.
  • the width of the narrowed portion 38 of the groove 35 is narrower than the width that the pressurized suture can take.
  • the width of the narrowed portion 38 of the groove 35 is narrowed.
  • the width of the holding portion 37 also narrows, and the first end 11 side of the suture 10 is fixed by the inner wall of the holding portion 37.
  • the suture is sutured so that the first end 11 side of the suture thread 10 penetrates the first fixing portion 30 of the suture thread fixing member 20 and the first end 11 of the suture thread 10 protrudes from the first fixing portion 30.
  • the first end 11 side of the thread 10 is fixed to the first fixing portion 30, and the tissue ligation device according to the embodiment is manufactured.
  • the suture thread fixing member 20 can be made upright with respect to the tissue or moved as appropriate without closing the groove between the support portion 41 and the grip portion 42 of the second fixing portion 40. It is easy to make it.

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

Abstract

L'invention concerne un dispositif de ligature de tissu comprenant : un fil de suture 10 ayant une première extrémité et une seconde extrémité ; et un élément de fixation de fil de suture 20 pour fixer le fil de suture 10. L'élément de fixation de fil de suture 20 comporte : une première partie fixation 30 pour fixer le premier côté extrémité du fil de suture 10 ; et une seconde partie fixation 40 qui est reliée à la première partie fixation 30 et qui est destinée à fixer le second côté extrémité du fil de suture 10 après la ligature d'un tissu avec le fil de suture 10.
PCT/JP2020/025038 2019-07-04 2020-06-25 Dispositif de ligature de tissu, élément de fixation de fil de suture et procédé de production de dispositif de ligature de tissu Ceased WO2021002272A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019-125194 2019-07-04
JP2019125194A JP7324493B2 (ja) 2019-07-04 2019-07-04 組織結紮用デバイス、縫合糸固定部材、組織結紮用デバイスの製造方法

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WO2021002272A1 true WO2021002272A1 (fr) 2021-01-07

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PCT/JP2020/025038 Ceased WO2021002272A1 (fr) 2019-07-04 2020-06-25 Dispositif de ligature de tissu, élément de fixation de fil de suture et procédé de production de dispositif de ligature de tissu

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WO (1) WO2021002272A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7571572B2 (ja) 2021-01-26 2024-10-23 株式会社Soken 超音波センサ

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6015428A (en) * 1997-06-03 2000-01-18 Anthony C. Pagedas Integrally formed suture and suture lock
US20030093091A1 (en) * 2000-04-05 2003-05-15 Anthony Paolitto Surgical suturing clamp
JP2015223296A (ja) * 2014-05-27 2015-12-14 国立大学法人 東京大学 組織結紮デバイス
JP2016104297A (ja) * 2016-03-01 2016-06-09 オリンパス株式会社 組織結紮デバイス

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6266048B2 (ja) 2010-11-30 2018-01-24 オリンパス株式会社 組織結紮デバイス
JP6061623B2 (ja) 2012-11-01 2017-01-18 オリンパス株式会社 結紮用糸留め具および結紮デバイス

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6015428A (en) * 1997-06-03 2000-01-18 Anthony C. Pagedas Integrally formed suture and suture lock
US20030093091A1 (en) * 2000-04-05 2003-05-15 Anthony Paolitto Surgical suturing clamp
JP2015223296A (ja) * 2014-05-27 2015-12-14 国立大学法人 東京大学 組織結紮デバイス
JP2016104297A (ja) * 2016-03-01 2016-06-09 オリンパス株式会社 組織結紮デバイス

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JP7324493B2 (ja) 2023-08-10
JP2021010461A (ja) 2021-02-04

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