KR102742865B1 - 비혈관용 스텐트 - Google Patents
비혈관용 스텐트 Download PDFInfo
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- KR102742865B1 KR102742865B1 KR1020190137183A KR20190137183A KR102742865B1 KR 102742865 B1 KR102742865 B1 KR 102742865B1 KR 1020190137183 A KR1020190137183 A KR 1020190137183A KR 20190137183 A KR20190137183 A KR 20190137183A KR 102742865 B1 KR102742865 B1 KR 102742865B1
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- 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
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- 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
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- 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
- A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
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- 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
- A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
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- 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
- A61F2/86—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure
- A61F2/90—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure
- A61F2/91—Stents in a form characterised by the wire-like elements; Stents in the form characterised by a net-like or mesh-like structure characterised by a net-like or mesh-like structure made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes
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- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/04—Macromolecular materials
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- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
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- A—HUMAN NECESSITIES
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- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
- A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L31/148—Materials at least partially resorbable by the body
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- A—HUMAN NECESSITIES
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- 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
- A61F2/0077—Special surfaces of prostheses, e.g. for improving ingrowth
- A61F2002/0081—Special surfaces of prostheses, e.g. for improving ingrowth directly machined on the prosthetic surface, e.g. holes, grooves
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- A—HUMAN NECESSITIES
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- 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
- A61F2002/045—Stomach, intestines
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- 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
- A61F2/848—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs
- A61F2002/8486—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents having means for fixation to the vessel wall, e.g. barbs provided on at least one of the ends
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- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0004—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof bioabsorbable
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- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0008—Fixation appliances for connecting prostheses to the body
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- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/001—Figure-8-shaped, e.g. hourglass-shaped
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- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
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- 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
- A61F2240/00—Manufacturing or designing of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2240/001—Designing or manufacturing processes
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Abstract
Description
도 2는 도 1에 도시된 비혈관용 스텐트의 사시도이다.
도 3는 도 1에 도시된 비혈관용 스텐트의 측면을 보여주는 측면도이다.
도 4a는 도 2의 제1 지지부를 전개한 개략적인 모습을 나타내는 전개도이다.
도 4b는 도 2의 제1 확장부를 전개한 개략적인 모습을 나태내는 전개도이다.
도 4c는 도 2의 둘레 방향 제1 프레임의 단면을 보여주는 단면도이다.
도 5는 본 발명의 제2 실시예에 따른 비혈관용 스텐트의 측면도이다.
도 6는 본 발명의 제3 실시예에 따른 비혈관용 스텐트의 측면도이다.
도 7은 본 발명의 제4 실시예에 따른 비혈관용 스텐트의 측면도이다.
120: 제1 걸림부 122: 제1 확장부
124: 제1 지지부 130: 제2 걸림부
132: 제2 확장부 134: 제2 지지부
140, 140': 삽입 보조부 142, 142': 제1 축소부
144, 144': 제3 지지부
Claims (18)
- 비혈관에 삽입되는 관 형상의 바디부;
비혈관의 일 측에 걸리며, 상기 바디부의 일 측에 위치하고 상기 바디부의 직경보다 큰 직경을 갖는 제1 걸림부; 및
비혈관의 타 측에 걸리며, 상기 바디부의 타 측에 위치하고 상기 바디부의 직경보다 큰 직경을 갖는 제2 걸림부를 포함하는, 생분해성 고분자로 형성된 비혈관용 스텐트로서,
상기 비혈관용 스텐트는 위와 십이지장 사이의 경계인 유문에 설치되고,
상기 제1 걸림부는 위 측을 향하여 배치되고,
상기 제2 걸림부는 십이지장 측을 향하여 배치되며,
상기 비혈관용 스텐트는 유문에 설치 후 생분해되는 것을 특징으로 하는, 비혈관용 스텐트. - 제1항에 있어서,
상기 제1 걸림부는, 상기 바디부의 일 측으로부터 길이 방향 상 측을 향하여 연속적으로 증가하는 직경을 갖는 제1 확장부; 및 상기 제1 확장부의 일 측으로부터 길이 방향 상 측을 향하여 동일한 직경이 유지되는 제1 지지부를 포함하고,
상기 제2 걸림부는, 상기 바디부의 타 측으로부터 길이 방향 하 측을 향하여 연속적으로 증가하는 직경을 갖는 제2 확장부; 및 상기 제2 확장부의 일 측으로부터 길이 방향 하 측을 향하여 동일한 직경이 유지되는 제2 지지부를 포함하는,
비혈관용 스텐트. - 제1항에 있어서,
상기 비혈관용 스텐트의 측면에 복수 개의 홀이 형성되도록, 상기 바디부, 상기 제1 걸림부 및 상기 제2 걸림부는 둘레 방향의 복수 개의 제1 프레임과 길이 방향의 복수 개의 제2 프레임이 교차하는 형태로 제공되고,
상기 제1 프레임의 단면은 링 형상이고,
복수 개의 상기 제1 프레임은 서로 평행하게 제공되는,
비혈관용 스텐트. - 제3항에 있어서, 상기 홀은 사각형 형상으로 형성되는, 비혈관용 스텐트.
- 제2항에 있어서,
상기 비혈관용 스텐트의 측면에 복수 개의 홀이 형성되도록, 상기 바디부, 상기 제1 걸림부 및 상기 제2 걸림부는 둘레 방향의 복수 개의 제1 프레임과 길이 방향의 복수 개의 제2 프레임이 교차하는 형태로 제공되고,
상기 제1 확장부 및 상기 제2 확장부를 형성하는 제1 프레임의 폭은 상기 바디부, 상기 제1 지지부 및 상기 제2 지지부를 형성하는 제1 프레임의 폭보다 큰,
비혈관용 스텐트. - 제5항에 있어서, 상기 제1 확장부 및 상기 제2 확장부에는 홀이 없는, 비혈관용 스텐트.
- 제1항에 있어서, 상기 바디부의 길이는 2mm 내지 20mm이고, 상기 바디부의 직경은 2mm 내지 30mm 인 것인, 비혈관용 스텐트.
- 제1항에 있어서, 상기 제1 걸림부와 상기 제2 걸림부는 상기 바디부를 중심으로 대칭형상인, 비혈관용 스텐트.
- 제1항에 있어서, 상기 제1 걸림부와 상기 제2 걸림부의 길이는 상기 바디부의 길이와 동일한, 비혈관용 스텐트.
- 제1항에 있어서, 상기 제1 걸림부와 상기 제2 걸림부의 길이는 2mm 내지 20mm이고, 상기 제1 걸림부와 상기 제2 걸림부의 직경은 5mm 내지 45mm인, 비혈관용 스텐트.
- 제1항에 있어서, 상기 제2 걸림부는 자유단부 측의 직경이 작아지는 형태로 테이퍼진, 비혈관용 스텐트.
- 제1항에 있어서, 상기 제2 걸림부로부터 연장되고, 상기 제2 걸림부로부터 길이 방향 하 측을 향하여 적어도 일 부분이 감소하는 직경을 갖는 삽입 보조부를 포함하는, 비혈관용 스텐트.
- 제12항에 있어서, 상기 삽입 보조부는,
상기 제2 걸림부로부터 길이 방향 하 측을 향하여 연속적으로 감소하는 직경을 갖는 제1 축소부;
상기 제1 축소부의 일 측으로부터 길이 방향 하 측을 향하여 동일한 직경이 유지되는 제3 지지부를 포함하는,
비혈관용 스텐트. - 제13항에 있어서, 상기 제1 축소부를 형성하는 제1 프레임의 폭은 상기 제3 지지부를 형성하는 제1 프레임의 폭보다 큰, 비혈관용 스텐트.
- 제13항에 있어서, 상기 제1 축소부는 볼록 프로파일을 갖는, 비혈관용 스텐트.
- 제1항에 있어서, 상기 바디부와 상기 제1 걸림부와 상기 제2 걸림부는 일체로 형성되되, 생분해성 고분자 소재로 형성되는, 비혈관용 스텐트.
- 제1항에 있어서, 상기 생분해성 고분자는 폴리락틱산(Poly Lactic Acid, PLA), 폴리글리코릭산(Poly Glycolic Acid, PGA), 폴리카프로락톤(Poly Capro Lactone, PCL), 폴리락틱코글리콜산(Polylactic-co-glycolic acid, PLGA), 폴리파라다이옥사논(Poly(p-dioxanone, PPDO), 폴리글리코릭코 엡실론 카프로락톤(polyglycolic-co-ε-caprolactone, PGCL), 폴리트리메틸렌카보네이트(Poly(trimethylene carbonate), PTMC), 및 이들의 공중합체로 이루어진 군에서 선택된 1종 이상인, 비혈관용 스텐트.
- 삭제
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| KR1020190137183A KR102742865B1 (ko) | 2019-10-31 | 2019-10-31 | 비혈관용 스텐트 |
| CN202080076749.8A CN114630639A (zh) | 2019-10-31 | 2020-10-30 | 非血管支架 |
| JP2022525778A JP2023500684A (ja) | 2019-10-31 | 2020-10-30 | 非血管用ステント |
| PCT/KR2020/015020 WO2021086104A1 (ko) | 2019-10-31 | 2020-10-30 | 비혈관용 스텐트 |
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Citations (3)
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| JP2005503881A (ja) * | 2001-10-04 | 2005-02-10 | ネオヴァスク メディカル リミテッド | 流量減少インプラント |
| JP2011509758A (ja) * | 2008-01-17 | 2011-03-31 | ボストン サイエンティフィック サイムド,インコーポレイテッド | 移動防止特徴部を備えたステント |
| KR102026017B1 (ko) | 2018-02-21 | 2019-09-26 | (의료)길의료재단 | 비만 치료용 스텐트 |
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| US8105392B2 (en) * | 2006-11-08 | 2012-01-31 | Boston Scientific Scimed, Inc. | Pyloric obesity valve |
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| ES2503553T3 (es) * | 2009-04-03 | 2014-10-07 | Metamodix, Inc. | Prótesis gastrointestinales modulares |
| CN101732760A (zh) * | 2009-12-31 | 2010-06-16 | 扬州大学 | 壳聚糖非血管支架及其制备方法 |
| JP5691184B2 (ja) * | 2010-01-29 | 2015-04-01 | 日本ゼオン株式会社 | カバードステント |
| AU2012357751B2 (en) * | 2011-12-19 | 2017-12-14 | Coloplast A/S | A luminal prosthesis and a gastrointestinal implant device |
| WO2017100977A1 (zh) * | 2015-12-14 | 2017-06-22 | 北京阿迈特医疗器械有限公司 | 一种个性化聚合物支架及其制备方法和用途 |
| KR101785042B1 (ko) | 2016-02-15 | 2017-10-12 | (주) 태웅메디칼 | 형상기억합금 와이어를 이용한 스텐트의 제조방법과 이에 의해 제조한 스텐트 및 이를 제조하기 위한 지그 |
| US10893961B2 (en) * | 2016-12-15 | 2021-01-19 | Bcm Co., Ltd. | Method of manufacturing medical stent with reinforced supportive rim |
| US10667930B2 (en) * | 2017-03-28 | 2020-06-02 | Boston Scientific Scimed, Inc. | Retrievable stent system |
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- 2019-10-31 KR KR1020190137183A patent/KR102742865B1/ko active Active
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| JP2011509758A (ja) * | 2008-01-17 | 2011-03-31 | ボストン サイエンティフィック サイムド,インコーポレイテッド | 移動防止特徴部を備えたステント |
| KR102026017B1 (ko) | 2018-02-21 | 2019-09-26 | (의료)길의료재단 | 비만 치료용 스텐트 |
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| JP2023500684A (ja) | 2023-01-10 |
| KR20210052744A (ko) | 2021-05-11 |
| CN114630639A (zh) | 2022-06-14 |
| WO2021086104A1 (ko) | 2021-05-06 |
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