JP4741470B2 - 医療器具 - Google Patents
医療器具 Download PDFInfo
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- JP4741470B2 JP4741470B2 JP2006507272A JP2006507272A JP4741470B2 JP 4741470 B2 JP4741470 B2 JP 4741470B2 JP 2006507272 A JP2006507272 A JP 2006507272A JP 2006507272 A JP2006507272 A JP 2006507272A JP 4741470 B2 JP4741470 B2 JP 4741470B2
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- Prior art keywords
- medical device
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- contrast agent
- medical
- catheter
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
- G01R33/286—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR involving passive visualization of interventional instruments, i.e. making the instrument visible as part of the normal MR process
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3933—Liquid markers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3954—Markers, e.g. radio-opaque or breast lesions markers magnetic, e.g. NMR or MRI
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1079—Balloon catheters with special features or adapted for special applications having radio-opaque markers in the region of the balloon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0127—Magnetic means; Magnetic markers
Description
別の態様においては、本発明は、医療器具の製造方法を特徴とする。該方法は、ポリマーを有する本体と造影剤を包囲即ち封入する部材とを押出成形する工程を含み、該器具は磁気共鳴映像法により観察できる。造影剤は、液体及び/又は固体を含む。
また、他の態様において、本発明は医療器具であって、ポリマーから形成された本体と、前記本体内において、比較的小型のファイバ状に形成された複数の部材と、前記複数の部材内に封入された造影剤とを備え、前記医療器具は磁気共鳴映像法により観察可能であることと、前記複数の部材は、押出成形の前に該複数の部材を前記ポリマーと混合して混合物を形成してから、該混合物を押出成形して前記本体を形成することによって、不揃いに配向された状態で前記本体に組み込まれることとを特徴とする。
さらに、他の態様において、本発明は医療用管材であって、ポリマーから形成された中空状の本体と、前記本体内において、比較的小型のファイバ状に形成された複数の部材と、前記複数の部材内に封入された造影剤とを備え、前記医療管材は磁気共鳴映像法により観察可能であることと、前記複数の部材は、押出成形の前に該複数の部材を前記ポリマーと混合して混合物を形成してから、該混合物を押出成形して前記本体を形成することによって、不揃いに配向された状態で前記本体に組み込まれることとを特徴とする。
部材26及び/又は30は、医療用カテーテル等の医療用管材に組み込まれてもよい。管材の寸法及び形状は限定されない。幾つかの実施例において、カテーテルは、10フレンチ(約3.3mm)以下のカテーテルであり、例えば、8フレンチ(約2.6mm)、6フレンチ(約2mm)、4フレンチ(約1.3mm)、2フレンチ(約0.6mm)等である。カテーテルは、約240cm〜3.5mの長さを有してもよい。カテーテルの例としては、バルーンカテーテル、動脈瘤カテーテル、ガイドカテーテル、泌尿器用カテーテル、マイクロカテーテル(これら全ては米国マサチューセッツ州ナティックに所在するボストンサイエンティフィック社(Boston Scientific Corp.)から販売されている)等が挙げられる。
他の実施例もまた添付の特許請求の範囲に含まれる。
Claims (27)
- 医療器具であって、
ポリマーから形成された本体と、
前記本体内において、比較的小型のファイバ状に形成された複数の部材と、
前記複数の部材内に封入された造影剤とを備え、
前記医療器具は磁気共鳴映像法により観察可能であることと、
前記複数の部材は、押出成形の前に該複数の部材を前記ポリマーと混合して混合物を形成してから、該混合物を押出成形して前記本体を形成することによって、不揃いに配向された状態で前記本体に組み込まれることとを特徴とする医療器具。 - 磁気共鳴映像法において、4を越えるコントラストノイズ比を有する請求項1に記載の医療器具。
- 前記造影剤は液体からなる請求項1に記載の医療器具。
- 前記造影剤は固体からなる請求項1に記載の医療器具。
- 前記造影剤はT1緩和時間短縮剤からなる請求項1に記載の医療器具。
- 前記造影剤は水と化学物質とからなる請求項1に記載の医療器具。
- 前記造影剤は重金属錯体からなる請求項1に記載の医療器具。
- 前記重金属錯体はGd−DTPAからなる請求項7に記載の医療器具。
- 前記造影剤はグリセリンからなる請求項1に記載の医療器具。
- 前記造影剤はT2緩和時間短縮剤からなる請求項1に記載の医療器具。
- 前記複数の部材は1を越える縦横比を有する請求項1に記載の医療器具。
- 前記複数の部材はポリマー材料からなる請求項1に記載の医療機器。
- 前記ポリマー材料は、ポリプロピレン、ポリエチレン、ナイロン、ポリエチレンテレフタレート、及びポリアセトニトリルから選択される請求項12に記載の医療器具。
- 前記複数の部材は金属からなる請求項1に記載の医療機器。
- 前記複数の部材により封入される固体の化学物質をさらに備える請求項1に記載の医療機器。
- 前記固体の化学物質は放射線不透過性を有する請求項15に記載の医療器具。
- 前記固体の化学物質は、金、タンタル、バリウム、ビスマス、タングステンから選択された材料を備える請求項16に記載の医療器具。
- 前記複数の部材は封止される請求項1に記載の医療機器。
- ガイドワイヤである請求項1に記載の医療器具。
- 血管グラフトである請求項1に記載の医療機器。
- ステントグラフトである請求項1に記載の医療機器。
- ステントである請求項1に記載の医療器具。
- 医療用バルーンである請求項1に記載の医療器具。
- バルーンカテーテルである請求項1に記載の医療器具。
- 医療用管材であって、
ポリマーから形成された中空状の本体と、
前記本体内において、比較的小型のファイバ状に形成された複数の部材と、
前記複数の部材内に封入された造影剤とを備え、
前記医療管材は磁気共鳴映像法により観察可能であることと、
前記複数の部材は、押出成形の前に該複数の部材を前記ポリマーと混合して混合物を形成してから、該混合物を押出成形して前記本体を形成することによって、不揃いに配向された状態で前記本体に組み込まれることとを特徴とする医療用管材。 - 前記複数の部材は封止される請求項25に記載の医療用管材。
- 医療用カテーテルの形状をなす請求項25に記載の医療用管材。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/390,202 | 2003-03-17 | ||
US10/390,202 US7792568B2 (en) | 2003-03-17 | 2003-03-17 | MRI-visible medical devices |
PCT/US2004/008137 WO2004082632A2 (en) | 2003-03-17 | 2004-03-16 | Medical devices comprising contrast agent and method of manufacturing |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006520645A JP2006520645A (ja) | 2006-09-14 |
JP4741470B2 true JP4741470B2 (ja) | 2011-08-03 |
Family
ID=32987489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006507272A Expired - Fee Related JP4741470B2 (ja) | 2003-03-17 | 2004-03-16 | 医療器具 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7792568B2 (ja) |
EP (1) | EP1603622B1 (ja) |
JP (1) | JP4741470B2 (ja) |
AT (1) | ATE470470T1 (ja) |
CA (1) | CA2519166C (ja) |
DE (1) | DE602004027605D1 (ja) |
WO (1) | WO2004082632A2 (ja) |
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WO2004082632A3 (en) | 2004-11-04 |
DE602004027605D1 (de) | 2010-07-22 |
JP2006520645A (ja) | 2006-09-14 |
US7792568B2 (en) | 2010-09-07 |
US20040186377A1 (en) | 2004-09-23 |
EP1603622A2 (en) | 2005-12-14 |
EP1603622B1 (en) | 2010-06-09 |
CA2519166C (en) | 2012-02-07 |
CA2519166A1 (en) | 2004-09-30 |
ATE470470T1 (de) | 2010-06-15 |
WO2004082632A2 (en) | 2004-09-30 |
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