JP2006520631A - 螺旋移植片 - Google Patents
螺旋移植片 Download PDFInfo
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- JP2006520631A JP2006520631A JP2006505979A JP2006505979A JP2006520631A JP 2006520631 A JP2006520631 A JP 2006520631A JP 2006505979 A JP2006505979 A JP 2006505979A JP 2006505979 A JP2006505979 A JP 2006505979A JP 2006520631 A JP2006520631 A JP 2006520631A
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Images
Classifications
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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
- A61F2/06—Blood vessels
-
- 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
- A61F2002/068—Modifying the blood flow model, e.g. by diffuser or deflector
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Transplantation (AREA)
- Animal Behavior & Ethology (AREA)
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- Engineering & Computer Science (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Cardiology (AREA)
- Pulmonology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Materials For Medical Uses (AREA)
- Nozzles (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Jet Pumps And Other Pumps (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Pipe Accessories (AREA)
Abstract
Description
実験は円形断面を有するポリビニールクロリド管系を用いて実行された。図1に示されるパラメータを参照すると、この管系は12mmの外径DE、8mmの内径DI、及び2mmの壁厚を有する。管系は、45mmのピッチP、8°の螺旋角θを有して螺旋へ巻かれている。振幅Aは、管系を二つの直線縁の間に置き、直線縁の間の空間を測定することにより確立された。振幅は掃引幅Wから外径DEを引くことにより決定される。
即ち、
A=(W−DE)/2
この例では掃引幅Wは14mmであるから、
A=(W−DE)/2=(14−12)/2=1mm
上述したように、「相対振幅」ARは以下のように定義される。
この例の場合においては、従って、
AR=A/DI=1/8=0.125
水は管系に沿って通過する。流れ特性を観察する目的で、配管壁を半径方向に通過する二つの針80及び82が、流れへ可視的な色素を注入するように用いられている。注入サイトは中心軸30の近傍、即ち流れの「核」である。一方の針80は赤インク、他方の針82は青インクを注入する。
この例のパラメータは、針80及び82がインクフィラメント84及び86を管系の壁近傍で開放するように配置されていることを除いては、例1のそれと同様である。図15は壁近傍のインク開放、レイノルズ数REがそれぞれ500及び250の二つの実験結果を示す。両方の場合において、インクフィラメントは螺旋管系形状に倣い、壁近傍渦を示すことが見てとれるであろう。更に、インクフィラメントと水との混合が促進されている。
Claims (27)
- 移植片であって、流通内腔を規定する管系部分を有する流通管系を備え、前記管系部分の前記流通内腔は隆起又は溝を実質的に有さず、この流通内腔の中心線は65°以下の螺旋角度を有する実質的に螺旋状の経路に追従すると共に、その螺旋の振幅は前記管系部分の内径の半分以下である移植片。
- 請求項1の移植片において、前記螺旋状の中心線の振幅を前記管系の内径で除すると少なくとも0.05である移植片。
- 移植片であって、流通内腔を規定する管系部分を有する流通管系を備え、前記管系部分の前記流通内腔は隆起又は溝を実質的に有さず、この流通内腔の中心線は65°以下の螺旋角度を有する実質的に螺旋状の経路に追従し、その螺旋中心線の振幅は前記管系部分の内径の半分以下であると共に、その螺旋中心線の振幅は前記管系部分の内径の0.05以上である移植片。
- 移植片であって、管系部分を有する流通管系を備え、その管系部分は、隆起又は溝を実質的に有さない長手方向延出流通内腔を規定する壁を含み、その流通内腔は、実質的に螺旋状の経路に追従する中心線を有し、前記壁は長手方向及び周方向に延出する螺旋部分を有することにより螺旋中心線の振幅の低減に抗する移植片。
- 請求項4の移植片において、前記螺旋部分が径方向において管系壁の隣接する部分よりも厚い移植片。
- 請求項4又は5の移植片において、前記螺旋部分が前記管系壁の隣接部分とは異なる材料から形成されている移植片。
- 請求項4、5又は6の何れか一項に記載の移植片において、前記螺旋状の中心線の振幅を前記管系の内径で除すると少なくとも0.05である移植片。
- 請求項1乃至7の何れか一項に記載の移植片において、螺旋角度は15°以下である移植片。
- 請求項1乃至8の何れか一項に記載の移植片において、前記管系部分の前記流通内腔が実質的に円形断面である移植片。
- 請求項1乃至9の何れか一項に記載の移植片において、前記管系部分が前記管系の全長の単に一部を形成する移植片。
- 請求項1乃至9の何れか一項に記載の移植片において、前記管系部分は前記管系の実質的に全長に亘って延出する移植片。
- 請求項1乃至11の何れか一項に記載の移植片において、前記管系部分の中心線は、湾曲した軸の周りの実質的に螺旋状の経路に追従する移植片。
- 請求項1乃至12の何れか一項に記載の移植片において、薬事コーティングを含む移植片。
- 移植片を製作する方法であって、概ね中空の可撓性壁を更なる可撓性部材に隣接して配置し、これら中空可撓性壁と可撓性部材とを互いの周りにより合せることにより、前記中空可撓性壁を少なくとも部分的によじれた形状に保持させる方法。
- 請求項14の方法において、前記中空可撓性壁に、この壁の長手方向及び周方向に延出する螺旋部分を設けて、前記よじれた形状の保持に付与することを含む方法。
- 請求項15の方法において、前記螺旋部分が前記可撓性部材に隣接して配置された方法。
- 移植片を作成する方法であって、実施的に螺旋状の経路に追従する中心線を有する螺旋マンドレルを設け、長手方向延出キャビティを有する概ね中空の可撓性壁を設け、その中空の壁を前記螺旋マンドレルに隣接して配置することにより、前記長手方向延出キャビティが実質的に螺旋状の経路に追従する中心線を持たせるようにすると共に、前記中空の壁に前記長手方向延出キャビティを有する形状を少なくとも部分的に保持させる方法。
- 請求項17の方法において、前記螺旋マンドレルが、この螺旋マンドレルの芯を規定する円筒状空間の周りで長手方向且つ周方向に延出し、且つ前記中空の壁の外径が前記螺旋マンドレルの芯の径よりも大きい方法。
- 請求項17又は18の方法において、前記中空の壁及び前記螺旋マンドレルが互いに関して長手方向に取り除かれる方法。
- 移植片を製造する方法であって、マンドレルを設け、長手方向延出キャビティを有する概ね中空の可撓性壁を設け、この中空の壁を前記マンドレルの周りに巻回させて、その周方向及び長手方向へ延出させることにより、前記中空の壁が第1の形状を規定し、この第1の形状においては前記長手方向延出キャビティが、実質的に螺旋状経路に追従する中心線を有し、前記中空の壁を設定し、この中空の壁を前記マンドレルから分離して前記螺旋状の中心線の振幅を低減させることを可能とすることにより、前記中空の壁が第2の形状に適合し、この第2の形状においては前記螺旋中心線の振幅が前記中空の壁の内径の半分以下である方法。
- 請求項20の方法において、前記マンドレルは案内手段を含み、前記マンドレルの周りの前記中空壁の巻回を加える方法。
- 移植片を製造する方法において、概ね中空の可撓性壁に沿って細長い部材を螺旋状に配置することにより、この細長い部材を前記中空の壁に沿って長手方向及び周方向に延出させ、前記細長い部材に張力を加えて前記壁に実質的に螺旋状の経路に追従する中心線を有する長手方向延出キャビティを規定させ、前記壁に前記長手方向延出螺旋キャビティを有する形状を少なくとも部分的に保持させる方法。
- 請求項14乃至22の何れか一項に記載の方法において、前記中空の壁はその断面形状を維持することを付勢するように補強されている方法。
- 請求項23の方法において、前記中空の壁は、その中へ取り外し自在な内部支持体を挿入することにより補強されている方法。
- 移植片を製造する方法であって、長手方向及び周方向に延出する螺旋部分を有する概ね中空の壁を与え、前記螺旋部分は前記壁の隣接する部分よりも延伸性が少なく、前記壁を径方向に拡張することにより、前記螺旋状部分が前記壁に実質的に螺旋状の経路に追従する中心線を有する長手方向延出キャビティを規定させる方法。
- 請求項25の方法において、前記中空の壁に前記長手方向延出螺旋状キャビティを有する形状を少なくとも部分的に保持する方法。
- 請求項14乃至26の方法において、前記中空の壁を熱硬化させることを含む方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0306176.9A GB0306176D0 (en) | 2003-03-18 | 2003-03-18 | Tubing |
GB0317004A GB0317004D0 (en) | 2003-07-21 | 2003-07-21 | Tubing |
GB0321327A GB0321327D0 (en) | 2003-09-11 | 2003-09-11 | Tubing |
GB0328757A GB0328757D0 (en) | 2003-12-11 | 2003-12-11 | Tubing |
PCT/GB2004/001156 WO2004082534A1 (en) | 2003-03-18 | 2004-03-18 | Helical graft |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006520631A true JP2006520631A (ja) | 2006-09-14 |
JP4503011B2 JP4503011B2 (ja) | 2010-07-14 |
Family
ID=33033226
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006505979A Expired - Lifetime JP4503011B2 (ja) | 2003-03-18 | 2004-03-18 | 螺旋移植片 |
JP2006505984A Expired - Fee Related JP4352074B2 (ja) | 2003-03-18 | 2004-03-18 | 体液流導管を体外に配置するための装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006505984A Expired - Fee Related JP4352074B2 (ja) | 2003-03-18 | 2004-03-18 | 体液流導管を体外に配置するための装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US20070156078A1 (ja) |
EP (2) | EP1603490B1 (ja) |
JP (2) | JP4503011B2 (ja) |
AT (2) | ATE416722T1 (ja) |
AU (2) | AU2004222495A1 (ja) |
BR (2) | BRPI0408412A (ja) |
CA (2) | CA2519381A1 (ja) |
DE (2) | DE602004027353D1 (ja) |
WO (2) | WO2004082520A2 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0306176D0 (en) | 2003-03-18 | 2003-04-23 | Imp College Innovations Ltd | Tubing |
GB0306179D0 (en) * | 2003-03-18 | 2003-04-23 | Imp College Innovations Ltd | Piping |
US8029749B2 (en) | 2004-09-21 | 2011-10-04 | Technip France S.A.S. | Cracking furnace |
GB0420971D0 (en) * | 2004-09-21 | 2004-10-20 | Imp College Innovations Ltd | Piping |
US7749462B2 (en) | 2004-09-21 | 2010-07-06 | Technip France S.A.S. | Piping |
GB2427668A (en) * | 2005-06-24 | 2007-01-03 | Veryan Medical Ltd | Method of forming artificial graft tubing |
GB0707190D0 (en) * | 2007-04-13 | 2007-05-23 | Veryan Medical Ltd | Graft |
GB0817219D0 (en) | 2008-09-19 | 2008-10-29 | Heliswirl Petrochemicals Ltd | Cracking furnace |
US9149377B2 (en) * | 2008-10-10 | 2015-10-06 | Veryan Medical Ltd. | Stent suitable for deployment in a blood vessel |
US9597214B2 (en) * | 2008-10-10 | 2017-03-21 | Kevin Heraty | Medical device |
GB2475338A (en) * | 2009-11-17 | 2011-05-18 | Tayside Flow Technologies Ltd | A tubular conduit with an internal and external helical formation |
BR112015021831A2 (pt) | 2013-03-15 | 2017-07-18 | Veryan Medical Ltd | aparelho de stent e métodos de tratamento |
WO2014177893A1 (en) | 2013-05-02 | 2014-11-06 | Veryan Medical Limited | Expandable balloon |
CN110037837B (zh) * | 2019-04-03 | 2021-10-01 | 中山大学附属第三医院 | 一种可变管径的自适应胰管支架管 |
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- 2004-03-18 DE DE602004027353T patent/DE602004027353D1/de not_active Expired - Lifetime
- 2004-03-18 US US10/549,211 patent/US20070156078A1/en not_active Abandoned
- 2004-03-18 WO PCT/GB2004/001169 patent/WO2004082520A2/en active Application Filing
- 2004-03-18 BR BRPI0408412-8A patent/BRPI0408412A/pt not_active IP Right Cessation
- 2004-03-18 CA CA002519381A patent/CA2519381A1/en not_active Abandoned
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- 2004-03-18 EP EP04721566A patent/EP1603490B1/en not_active Expired - Lifetime
- 2004-03-18 AT AT04721575T patent/ATE416722T1/de not_active IP Right Cessation
- 2004-03-18 AT AT04721566T patent/ATE468829T1/de not_active IP Right Cessation
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- 2004-03-18 JP JP2006505979A patent/JP4503011B2/ja not_active Expired - Lifetime
- 2004-03-18 DE DE602004018283T patent/DE602004018283D1/de not_active Expired - Lifetime
- 2004-03-18 BR BRPI0408431-4A patent/BRPI0408431A/pt not_active IP Right Cessation
- 2004-03-18 EP EP04721575A patent/EP1605868B1/en not_active Expired - Lifetime
- 2004-03-18 WO PCT/GB2004/001156 patent/WO2004082534A1/en active Application Filing
- 2004-03-18 JP JP2006505984A patent/JP4352074B2/ja not_active Expired - Fee Related
- 2004-03-18 AU AU2004222496A patent/AU2004222496A1/en not_active Abandoned
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Also Published As
Publication number | Publication date |
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ATE416722T1 (de) | 2008-12-15 |
CA2519406A1 (en) | 2004-09-30 |
JP4503011B2 (ja) | 2010-07-14 |
DE602004018283D1 (de) | 2009-01-22 |
DE602004027353D1 (de) | 2010-07-08 |
WO2004082520A2 (en) | 2004-09-30 |
AU2004222496A1 (en) | 2004-09-30 |
BRPI0408431A (pt) | 2006-03-21 |
EP1605868B1 (en) | 2008-12-10 |
EP1605868A1 (en) | 2005-12-21 |
WO2004082534A1 (en) | 2004-09-30 |
EP1603490A2 (en) | 2005-12-14 |
JP4352074B2 (ja) | 2009-10-28 |
BRPI0408412A (pt) | 2006-03-21 |
US20070156078A1 (en) | 2007-07-05 |
AU2004222495A1 (en) | 2004-09-30 |
EP1603490B1 (en) | 2010-05-26 |
CA2519381A1 (en) | 2004-09-30 |
ATE468829T1 (de) | 2010-06-15 |
JP2006520632A (ja) | 2006-09-14 |
WO2004082520A3 (en) | 2004-11-11 |
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