WO2020222364A1 - Endoprothèse amovible comprenant une boucle et un élément de traction permettant de retirer une endoprothèse - Google Patents

Endoprothèse amovible comprenant une boucle et un élément de traction permettant de retirer une endoprothèse Download PDF

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Publication number
WO2020222364A1
WO2020222364A1 PCT/KR2019/010381 KR2019010381W WO2020222364A1 WO 2020222364 A1 WO2020222364 A1 WO 2020222364A1 KR 2019010381 W KR2019010381 W KR 2019010381W WO 2020222364 A1 WO2020222364 A1 WO 2020222364A1
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WO
WIPO (PCT)
Prior art keywords
stent
loop
stent body
removable
present
Prior art date
Application number
PCT/KR2019/010381
Other languages
English (en)
Korean (ko)
Inventor
강성권
이영재
Original Assignee
주식회사 에스앤지바이오텍
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.)
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Publication date
Application filed by 주식회사 에스앤지바이오텍 filed Critical 주식회사 에스앤지바이오텍
Publication of WO2020222364A1 publication Critical patent/WO2020222364A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/29—Forceps for use in minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels
    • A61F2/07—Stent-grafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts

Definitions

  • the present invention relates to a removable stent, and more particularly, to a removable stent including a pull member and a loop for removing the stent.
  • Medical stents are generally used to expand the narrowed lumen or prevent the expanded lumen from narrowing again.
  • These medical stents are implanted in the lumen to expand the lumen, thereby preventing stenosis occurring in the lumen, and after the stent implanted in the lumen fulfills this role, it is removed by a stent removal device.
  • the stent implanted in the lumen is not accurately implanted at the desired location or is dislodged from the original position, the stent implanted in the lumen is removed to perform a reoperation.
  • the removable stent has a structure that can be removed by a stent removal device.
  • a removable stent mainly includes a stent body and a removal member connected to the stent body.
  • a method of removing the stent there is a method of inserting a stent removal device into the lumen and pulling the removal member connected to the stent, or pulling the removal member by walking.
  • the removal member include a pull member such as a pull line, or a loop.
  • the stent in which a pull member such as a pull line is formed as a removal member can be removed by pulling the pull member by a removal device.
  • the removal device used at this time must have a gripping means capable of holding the pull member.
  • the procedure for removing the stent having the pulling member formed thereon should be performed while visually checking the inside of the lumen with an endoscope so that the holding means provided in the removal device can hold the pulling member at an appropriate position. Therefore, this removal method is mainly used when an endoscopic procedure is performed, and is mainly used in internal medicine.
  • a stent having a loop formed therein rather than a pull member such as a pull line may be removed by the loop being pulled by the removal device.
  • the removal device used must be fitted to the loop to pull the loop, so it must have a configuration in the form of a hook.
  • This removal method is mainly used when a laparoscopic procedure is performed, and is mainly used in radiology.
  • a removal device capable of removing the stent is different, and in each case, a treatment that can perform a removal procedure is also different.
  • Patent Document 1 Unexamined Patent Publication 10-2010-0119068
  • the present invention is to solve the above problems, and to provide a removable stent including both a pull member and a loop for removing the stent.
  • the present invention provides a removable stent.
  • the wires are crossed with each other to form a plurality of holes on the surface, the stent body having a hollow tubular shape, one or more pulling members coupled to the end of the stent body, and the end of the stent body It characterized in that it comprises a loop formed.
  • the present invention is characterized in that the pulling member is formed in the outer direction of the stent body, and is formed extending in the longitudinal direction of the stent body so that it can be pulled by a removal tool inserted from the outside of the stent body.
  • the loop is formed in the inner direction of the end of the stent body, and at least a portion of the loop is spaced between the wires of the end of the stent body so that it can be engaged by a removal hook inserted from the outside of the stent body. It is characterized in that it is formed to have.
  • the present invention is also characterized in that the loop is formed by alternately inserting a medical thread into the wires at the ends of the stent body.
  • the present invention is also characterized in that the removal tool is a medical endoscopic forceps.
  • the present invention is also characterized in that the distance between the wires and the loop at the end of the stent body is at least 1mm.
  • the present invention is also characterized in that the loop has a circular or polygonal shape.
  • the present invention is also characterized in that it further comprises a cover provided to surround one side of the outer peripheral surface of the stent body.
  • the present invention is also characterized in that the pull member is formed by tying both ends of a medical thread forming a loop.
  • the removable stent of the present invention is not limited to the method of removing the stent and the type of medical departments such as internal medicine and radiology, and has an effect that a removal procedure can be performed.
  • the removable stent of the present invention includes both a pull member and a loop for removing the stent, so that it may be removed by pulling the pull member through a removal device including a gripping means, and includes a hook, etc. It can also be removed by pulling the loop through the removal device.
  • the removable stent of the present invention has the advantage of being able to be removed through endoscopic surgery and also through laparoscopic surgery.
  • the removable stent of the present invention can be removed without being limited to the removal method and the clinic.
  • FIG. 1 is a view showing an embodiment of a removable stent comprising a pull member and a loop according to the present invention
  • FIG. 2 is a cross-sectional view of an embodiment of a removable stent comprising a pull member and a loop according to the present invention
  • FIG 3 is a view showing the end of an embodiment of a removable stent comprising a pull member and a loop according to the present invention.
  • FIG. 4 is a view showing another embodiment of a removable stent including a pull member and a loop according to the present invention
  • FIG. 5 is a view showing a cross-section of another embodiment of a removable stent including a pull member and a loop according to the present invention.
  • the removable stent 10 includes a stent body 100, a pull member 110, and a loop 120.
  • the stent body 100 has a plurality of holes formed on its surface by crossing wires, and has a hollow tubular shape. Preferably, one side of the outer circumferential surface of the stent body 100 is covered by the cover part 200.
  • the outer surface of the stent body 100 may be uneven as in the embodiment illustrated in FIG. 1, or may be smooth as in the other exemplary embodiment illustrated in FIG. 4. However, it is not limited to the form of the above embodiments.
  • the pull member 110 is coupled to the end of the stent body 100 and connected to the stent body 100.
  • the pull member 110 is formed in the outer direction of the stent body 100 and is formed to extend in the longitudinal direction of the stent body 100 so that it can be pulled by a removal tool inserted from the outside of the stent body 100 .
  • the length of the pull member 110 is not limited, but is formed to extend long enough so that it can be pulled by a removal tool.
  • the removal tool is a tool capable of removing the removable stent 10 by pulling the pull member 110, and is preferably a medical endoscope forceps.
  • the loop 120 is formed at the end of the stent body 100. And, at least a portion of the loop 120 is formed in the inner direction of the end of the stent body 100, the end of the stent body 100 so that it can be engaged by a removal hook inserted from the outside of the stent body 100 It is formed to have a gap with the wires of. At this time, at least a part of the loop 120 is formed to have a gap with the wires at the end of the stent body 100, at least a part of the loop 120 is a wire forming the edge of the end of the stent body 100 It means that it is not formed to be in contact with the field, but is formed to be separated at a certain interval. By having the gap, the hook for removal may enter the gap and be caught in the loop 120.
  • the size of the gap between at least a portion of the loop 120 and the wires at the ends of the stent body 100 may be set so that the hook for removal can be easily caught on the loop 120.
  • the spacing is at least 1 mm.
  • the loop 120 is formed in a form in which a medical thread is alternately inserted into the wires at the ends of the stent body 100.
  • the pull member 110 is formed by tying both ends of the medical thread forming the loop 120.
  • the pull member 110 may be formed by bundling a separate medical thread other than a medical thread forming the loop 120.
  • the shape of the loop 120 may be any, but is preferably a circular or polygonal shape, more preferably a triangular shape.
  • the number of the pull member 120 and the loop 120 is not limited, but is at least one or more.
  • the pulling member 120 and the loop 120 may be made of a flexible material that freely bends in order to move freely even if it is moved by the activity or flow of the human body and not to irritate the organs.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Transplantation (AREA)
  • Vascular Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Surgery (AREA)
  • Pulmonology (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

La présente invention concerne une endoprothèse amovible comprenant : un corps d'endoprothèse ; au moins un élément de traction accouplé à l'extrémité du corps d'endoprothèse ; et une boucle formée à l'extrémité du corps d'endoprothèse : l'élément de traction étant formé vers l'extérieur à partir du corps d'endoprothèse, et s'étendant dans la direction longitudinale du corps d'endoprothèse de manière à être tiré par un outil de retrait ; la boucle étant formée vers l'intérieur à partir de l'extrémité du corps d'endoprothèse ; et des espaces étant laissés entre au moins une partie de la boucle et des fils disposés à l'extrémité du corps d'endoprothèse, de manière à accrocher la boucle par un crochet de retrait.
PCT/KR2019/010381 2019-04-29 2019-08-14 Endoprothèse amovible comprenant une boucle et un élément de traction permettant de retirer une endoprothèse WO2020222364A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0049807 2019-04-29
KR20190049807 2019-04-29

Publications (1)

Publication Number Publication Date
WO2020222364A1 true WO2020222364A1 (fr) 2020-11-05

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PCT/KR2019/010381 WO2020222364A1 (fr) 2019-04-29 2019-08-14 Endoprothèse amovible comprenant une boucle et un élément de traction permettant de retirer une endoprothèse

Country Status (1)

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WO (1) WO2020222364A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023277266A1 (fr) * 2021-07-01 2023-01-05 (재)예수병원유지재단 Instrument de capture de couvercle de bord d'endoprothèse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060190075A1 (en) * 2005-01-28 2006-08-24 Boston Scientific Scimed, Inc. Stent retrieval member and devices and methods for retrieving or repositioning a stent
JP2008545453A (ja) * 2005-05-13 2008-12-18 ボストン サイエンティフィック リミテッド 一体形ステント再位置決め及び回収ループ
KR20110125783A (ko) * 2010-05-14 2011-11-22 (주) 태웅메디칼 위 절제 후 음식물 의한 부작용 방지 전용 스텐트
JP2014223299A (ja) * 2013-05-15 2014-12-04 株式会社スタンダードサイテックＳｔａｎｄａｒｄ Ｓｃｉ−Ｔｅｃｈ Ｉｎｃ． 移動防止手段を有する医療用ステント
KR101846769B1 (ko) * 2014-04-08 2018-04-06 보스톤 싸이엔티픽 싸이메드 인코포레이티드 부분적으로 코팅된 스텐트

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060190075A1 (en) * 2005-01-28 2006-08-24 Boston Scientific Scimed, Inc. Stent retrieval member and devices and methods for retrieving or repositioning a stent
JP2008545453A (ja) * 2005-05-13 2008-12-18 ボストン サイエンティフィック リミテッド 一体形ステント再位置決め及び回収ループ
KR20110125783A (ko) * 2010-05-14 2011-11-22 (주) 태웅메디칼 위 절제 후 음식물 의한 부작용 방지 전용 스텐트
JP2014223299A (ja) * 2013-05-15 2014-12-04 株式会社スタンダードサイテックＳｔａｎｄａｒｄ Ｓｃｉ−Ｔｅｃｈ Ｉｎｃ． 移動防止手段を有する医療用ステント
KR101846769B1 (ko) * 2014-04-08 2018-04-06 보스톤 싸이엔티픽 싸이메드 인코포레이티드 부분적으로 코팅된 스텐트

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023277266A1 (fr) * 2021-07-01 2023-01-05 (재)예수병원유지재단 Instrument de capture de couvercle de bord d'endoprothèse
KR20230005515A (ko) * 2021-07-01 2023-01-10 (재)예수병원유지재단 스텐트 림커버 캡처 기구
KR102543906B1 (ko) 2021-07-01 2023-06-16 (재)예수병원유지재단 스텐트 림커버 캡처 기구

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