KR101058542B1 - 체내 분해성 훅 스텐트 - Google Patents
체내 분해성 훅 스텐트 Download PDFInfo
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- KR101058542B1 KR101058542B1 KR1020090010242A KR20090010242A KR101058542B1 KR 101058542 B1 KR101058542 B1 KR 101058542B1 KR 1020090010242 A KR1020090010242 A KR 1020090010242A KR 20090010242 A KR20090010242 A KR 20090010242A KR 101058542 B1 KR101058542 B1 KR 101058542B1
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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
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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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
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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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61L31/04—Macromolecular materials
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
-
- 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
- A61F2002/044—Oesophagi or esophagi or gullets
-
- 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
- A61F2002/048—Ureters
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Oral & Maxillofacial Surgery (AREA)
- Cardiology (AREA)
- Surgery (AREA)
- Epidemiology (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Prostheses (AREA)
- External Artificial Organs (AREA)
Abstract
Description
이러한, 위의 내용과 마찬가지 이유로, 종종 유두부 염증이 심한 경우나, EST 후 유두부의 부종이 동반되는 경우, 등 여러 가지 이유로 내시경적 경비적 담즙배액술(ENBD:endoscopic nasobiliary drainage)를 예방목적으로 삽입하는 경우가 흔하게 있다. 내시경적 경비적 담즙배액술의 단점은 삽입된 관을 코로 빼야하지만, 재시술이 필요하지 않고 담관의 담석 제거 후 남아있을 담석 존재 유무를 알 수 있는 장점이 있어 이러한 경우에 널리 이용되고 있다.
그리고, 오디괄약근 장애(SOD)를 진단하기 위해서는 유두부 압력을 재는 것이 유일한 진단법이지만 대부분의 병원에서 한계가 있어 임상적으로 의심이 되면 치료에 반응을 보는 것으로 진단을 내리는 경우가 많다.
이러한, 상기 본 발명의 스텐트(100,200,300)를 담관 배액술(ERBD)나 췌관 배액술(ERPD)로 사용하면 궁극적인 치료 방법인 유두괄약근 절개술(EST)을 하기 전에 진단에 도움이 될 수 있으며, 치료의 방향을 설정하는 데에도 결정적 역할을 할 수 있어 마찬가지 이유로 널리 이용될 것이다. 즉, 배액관(20)의 두께가 가늘면 유두괄약근 절개술(EST)이 필요없이 담관(6)내로 삽입할 수 있는 것이다.
예컨대, 본 발명의 실시 예에서는 스텐트(100,200,300)가 담관 배액술(ERBD)에 사용되는 것으로 국한된 듯이 보이나, 이러한 스텐트(100,200,300)는 췌관의 입구인 유두부의 손상으로 인한 췌관 배액술(ERPD) 뿐만 아니라 기타 인체 장기의 관로를 확장 유지시키는 데 매우 유용하게 사용될 수 있는 것으로서, 도면은 다만 일 실시 예일 뿐으로 나타낸 것이다.
Claims (5)
- 담즙이 배출되는 다수개의 담즙배출홀(1)이 형성된 배액관몸체(2)의 끝단 외부에 걸림편(3)이 돌출 형성되어, 체내의 혈관이나 기관 중 간(4)과 십이지장(5)이 연결되는 담관(6)이 내시경 시술 후 병변에 의해 막히는 것을 방지되도록 담관(6) 내에 삽입 시술시켜 담즙의 원활한 유동을 유도하는 스텐트에 있어서,상기 담즙이 유동되고 담즙을 십이지장(5)으로 유도하는 배액관(20)과;상기 배액관(20)의 끝단 외부에 분리 가능하게 삽입 연결되는 중공의 걸림몸체(11)와, 상기 걸림몸체(11)의 외주면에 구성되고 상기 담관(6)의 내벽면에 접촉되어 하부방향으로 이탈되지 않도록 걸림되며 체액으로 녹아서 분해될 수 있는 생분해성 폴리머 성분으로 이루어지는 다수개의 걸림편(12)으로 구성된 걸림구(10)로 구성되어;상기 걸림편(12)은 두께가 걸림몸체(11)의 두께보다 얇게 형성되어 체내에 잔존시 체액에 의해 걸림몸체(11) 보다 빠른 시간 내에 녹아서 분해되어 상기 담관(6) 내의 병변부위의 치유가 완료되면 걸림편(12)이 녹아 걸림작용이 상실되어 자연배출됨으로써 제거 시술이 간편해지도록 구성되는 것을 특징으로 하는 체내 분해성 훅 스텐트.
- 제 1항에 있어서, 상기 걸림구(10)의 생분해성 폴리머는 PLLA(Poly L-lactic acid), PLA(Poly lactic acid), PGA(Polyglycolic acid),PGLA(Poly glycolide-co-L- lactide acid), PDO)Polydioxanone) 및 PGCL(Poly glycolide-co-caprolactone)에서 선택된 1종 또는 2종 이상으로 서로 혼합된 것을 특징으로 하는 체내 분해성 훅 스텐트.
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2011068262A1 (ko) * | 2009-12-03 | 2011-06-09 | 주식회사 엠아이텍 | 담도용 스텐트 |
KR101498584B1 (ko) | 2013-05-15 | 2015-03-04 | 주식회사 스텐다드싸이텍 | 이동방지용 스텐트 |
JP7039957B2 (ja) * | 2017-11-24 | 2022-03-23 | 株式会社ジェイ・エム・エス | ステント |
KR102228845B1 (ko) * | 2020-11-19 | 2021-03-16 | 이성인 | 양방향 요관 스텐트를 이용한 요관 스텐트 삽입 시술방법 |
CN112826988B (zh) * | 2021-02-22 | 2023-11-24 | 复旦大学附属中山医院 | 一种可定向降解自脱落镁金属胆道支架及其制备方法 |
KR102307346B1 (ko) | 2021-03-10 | 2021-09-29 | 이애리 | 요관 스텐트 양방향 연결장치 |
Citations (2)
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JP2007513648A (ja) * | 2003-11-18 | 2007-05-31 | 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 | 生吸収性センタリング要素を備える脈管内フィルター |
US20080108824A1 (en) * | 2006-09-28 | 2008-05-08 | Med Institute, Inc | Medical Devices Incorporating a Bioactive and Methods of Preparing Such Devices |
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Patent Citations (2)
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JP2007513648A (ja) * | 2003-11-18 | 2007-05-31 | 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 | 生吸収性センタリング要素を備える脈管内フィルター |
US20080108824A1 (en) * | 2006-09-28 | 2008-05-08 | Med Institute, Inc | Medical Devices Incorporating a Bioactive and Methods of Preparing Such Devices |
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