JP2013135884A - 脈管開口保持用ステント及び植え込み型医療装置の製造方法 - Google Patents
脈管開口保持用ステント及び植え込み型医療装置の製造方法 Download PDFInfo
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- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/02—Local etching
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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
- A61F2/86—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 sheet material or tubes, e.g. perforated by laser cuts or etched holes
- A61F2/915—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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other
- A61F2002/91533—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 sheet material or tubes, e.g. perforated by laser cuts or etched holes with bands having a meander structure, adjacent bands being connected to each other characterised by the phase between adjacent bands
- A61F2002/91541—Adjacent bands are arranged out of phase
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- B29L2023/00—Tubular articles
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- Y10S623/00—Prosthesis, i.e. artificial body members, parts thereof, or aids and accessories therefor
- Y10S623/901—Method of manufacturing prosthetic device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
【解決手段】ステント300、すなわち、血管、リンパ管などの脈管の開口を保持するために用いる開口保持具の内壁面は、内皮細胞の移動が促進されるように処理されている。その内皮細胞の移動をより促進するためステント内壁面に少なくとも一条の溝を形成した金属製脈管ステントの製法を提供する。ステントに対する少なくとも一条の溝は、化学的(感光的)に形成される。
【選択図】図23
Description
た冠動脈疾患の治療に有効であることは実証されているが、もし、内皮細胞がステントの内壁面を移動する流量または速度を速めれば速める程さらにもっと成功率が高くなりさらに効果的であることが推測される。少なくとも一条の溝をステントの内壁面に設けることにより、接種後ステント内壁面上の内皮細胞の移動速度を速めるものと思われる。こうしたことを背景に業界は、少なくとも一条の溝をステントの内壁面に設けた脈管ステントの製造装置と方法の実現を期待している。
300 脈管ステント(被加工ステント)
400 溝
450 カレンダ
452 マンドリル
451 カレンダ・ローラ
470 スタンピング装置
480 刻設ローラ
500 拡張・縮小自在マンドリル装置(一式)
501 拡張・縮小自在マンドリル
530 マンドリル溝形成装置
700 放電加工装置
800 光源
Claims (12)
- 金属製の脈管ステント(300)の製造方法において、内壁面(301)と外壁面(302)とをもった脈管ステント(300)の内壁面(301)に、化学的方法によるエッチングで少なくとも一条の溝(400、400’、400’’、400’’’、400’’’’、400’’’’’)を形成する工程を含む金属製脈管ステントの製造方法であって、
前記化学的方法が、脈管ステント(300)の内壁面(301)に感光性素材(608)を塗布し、マスク(602、603)を脈管ステント内に挿入し、光源(610、800)から光を脈管ステントの内壁面(301)に照射した後マスク(602、603)を脈管ステント(300)から除去する工程を有し、
光源(610、800)が、単一平面内の複数のビーム光(801)をもった同軸光源(800)である、金属製脈管ステントの製造方法。 - 金属製の脈管ステント(300)の製造方法において、内壁面(301)と外壁面(302)とをもった脈管ステント(300)の内壁面(301)に、化学的方法によるエッチングで少なくとも一条の溝(400、400’、400’’、400’’’、400’’’’、400’’’’’)を形成する工程を含む金属製脈管ステントの製造方法であって、
前記化学的方法が、脈管ステント(300)の内壁面(301)に感光性素材(608)を塗布し、マスク(602、603)を脈管ステント内に挿入し、光源(610、800)から光を脈管ステントの内壁面(301)に照射した後マスク(602、603)を脈管ステント(300)から除去する工程を有し、
光源(610、800)が、脈管ステント(300)の長軸に沿って変位される、金属製脈管ステントの製造方法。 - 金属製の脈管ステント(300)の製造方法において、内壁面(301)と外壁面(302)とをもった脈管ステント(300)の内壁面(301)に、化学的方法によるエッチングで少なくとも一条の溝(400、400’、400’’、400’’’、400’’’’、400’’’’’)を形成する工程を含む金属製脈管ステントの製造方法であって、
前記化学的方法が、脈管ステント(300)の内壁面(301)に感光性素材(608)を塗布し、マスク(602、603)を脈管ステント内に挿入し、光源(610、800)から光を脈管ステントの内壁面(301)に照射した後マスク(602、603)を脈管ステント(300)から除去する工程を有し、
光源(610、800)が、ステッピング・モータによって回転駆動される、金属製脈管ステントの製造方法。 - 金属製の脈管ステント(300)の製造方法において、内壁面(301)と外壁面(302)とをもった脈管ステント(300)の内壁面(301)に、化学的方法によるエッチングで少なくとも一条の溝(400、400’、400’’、400’’’、400’’’’、400’’’’’)を形成する工程を含む金属製脈管ステントの製造方法であって、
前記化学的方法が、脈管ステント(300)の内壁面(301)に感光性素材(608)を塗布し、マスク(602、603)を脈管ステント内に挿入し、光源(610、800)から光を脈管ステントの内壁面(301)に照射した後マスク(602、603)を脈管ステント(300)から除去する工程を有し、
固定された光源(610、800)に対しマスク(602)が回転駆動される、金属製脈管ステントの製造方法。 - 第1表面と第2表面とを持った植え込み型医療装置の第1表面と第2表面との少なくとも一方の表面に化学的エッチング方法により少なくとも一条の溝を形成し、この第1表面又は第2表面の内の少なくとも1つの表面での内皮細胞の移動速度が増すようになされる工程を含む植え込み型医療装置の製造方法。
- 化学的エッチング方法が、前記第1表面又は第2表面の少なくとも一方の表面に感光性素材を塗布し、この感光性素材をマスクして、光源からの光を感光性素材に照射したのち、該感光性素材からマスクを除去するようにした、上記第1表面と第2表面とを持った植え込み型医療装置の第1表面と第2表面との少なくとも一方の表面に化学的エッチング方法により少なくとも一条の溝を形成する工程を含む、請求項5に記載の植え込み型医療装置の製造方法。
- 上記植え込み型医療装置が管状装置を備え、さらにマスクを当初未膨張のバルーンの上に置き、次いで、その未膨張バルーンを管状装置の内腔内にマスクを挿入する工程を含む請求項6に記載の植え込み型医療装置の製造方法。
- バルーンが管状装置の内腔内に挿入後に膨張される請求項7記載の植え込み型医療装置の製造方法。
- 光源が単一平面内の複数のビーム光をもった同軸光源である請求項6に記載の植え込み型医療装置の製造方法。
- 光源が、脈管ステントの長軸に沿って変位されることを特徴とする請求項6に記載の植え込み型医療装置の製造方法。
- 光源が、ステッピング・モータによって回転駆動される請求項6に記載の植え込み型医療装置の製造方法。
- 固定された光源に対しマスクが回転駆動される請求項6に記載の植え込み型医療装置の製造方法。
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JP2011178778A Pending JP2011251162A (ja) | 2000-05-19 | 2011-08-18 | 脈管開口保持用ステント及び植え込み型医療装置の製造方法 |
JP2011178777A Expired - Lifetime JP5379195B2 (ja) | 2000-05-19 | 2011-08-18 | 金属製脈管ステントの製造方法 |
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JP2011178778A Pending JP2011251162A (ja) | 2000-05-19 | 2011-08-18 | 脈管開口保持用ステント及び植え込み型医療装置の製造方法 |
JP2011178777A Expired - Lifetime JP5379195B2 (ja) | 2000-05-19 | 2011-08-18 | 金属製脈管ステントの製造方法 |
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AT (2) | ATE345749T1 (ja) |
AU (3) | AU6475001A (ja) |
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