JP6081463B2 - 人間や動物の身体に挿入する医療装置 - Google Patents
人間や動物の身体に挿入する医療装置 Download PDFInfo
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- A—HUMAN NECESSITIES
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- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
- A61N1/0587—Epicardial electrode systems; Endocardial electrodes piercing the pericardium
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/04—Electrodes
- A61N1/05—Electrodes for implantation or insertion into the body, e.g. heart electrode
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
- A61B5/065—Determining position of the probe employing exclusively positioning means located on or in the probe, e.g. using position sensors arranged on the probe
- A61B5/066—Superposing sensor position on an image of the patient, e.g. obtained by ultrasound or x-ray imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
- A61N5/1001—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy using radiation sources introduced into or applied onto the body; brachytherapy
- A61N5/1007—Arrangements or means for the introduction of sources into the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
- A61B2017/00469—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable for insertion of instruments, e.g. guide wire, optical fibre
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/08—Arrangements or circuits for monitoring, protecting, controlling or indicating
- A61N1/086—Magnetic resonance imaging [MRI] compatible leads
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Description
8の直径はそれ相応に適合させる必要がある。この形式のコア8は好ましくは組織被覆マトリックス14なしのロッド形状の化合物エレメント13だけから成る(図3参照)。
・MRTマーカーの集中が高ければ高いほど、アーチファクトはより顕著になり幅広になる。
・粒子が大きければ大きいほど、平行及び対角方向におけるイメージングプロセス間の安定は良くなる。それでも、粒子の分布は、極端に大きな粒子の場合には一様でなくなり、それにより一様なアーチファクトはもはや得られなくなる。粒子サイズは、化合物エレメント(ロッド形状本体)及び/又は医療装置の製造プロセスによって制限される。サイズが極端に大きな粒子はもはや製造ツールを通過できない。最適な粒子サイズは1μm〜150μmの範囲である。粒子は好ましくは、少なくとも1μm、2μm、5μm、10μm、20μm、30μm、40μm又は50μmのサイズである。メッシュ幅150μmのスクリーンでふるいをかけた粒子で好結果が得られる。メッシュ幅が約80μm〜130μmのスクリーンも適切である。鉄粒子は20〜100μmのサイズ、より好ましくは30〜80μmのサイズ、そして最も好ましくは40〜65μmのサイズが特に好ましい。
・多数のドープした化合物エレメントは、同じ又は一様な多量のマーカー粒子をもつ単一化合物エレメントよりもより顕著なアーチファクトを生じることになる。
2 :リードプローブ
3 :近端部
4 :遠端部
5 :開口
6 :軸方向
7 :内腔
8 :コア
9 :非金属フィラメント
10:マトリックス材
11:アラミド繊維
12:ガラス繊維
13:化合物エレメント
14:組織被覆マトリックス
Claims (24)
- 人体や動物の身体に挿置する医療装置であって、近端部と遠端部とを備えた細長い管状のリードプローブを有し、リードプローブの近位端に、軸方向に延びる内腔内へ開放した開口を設け、またリードプローブの遠位端が閉じられており、
また内腔を介してリードプローブ内に挿入できるように構成された細長いコアを有する医療装置において、
コアが、マトリックス材に埋め込まれる非金属フィラメントで形成されることを特徴とする医療装置。 - コアの直径が、リードプローブの内腔直径の60%〜98%であることを特徴とする請求項1記載の医療装置。
- コアの直径が、リードプローブの内腔直径の70%〜95%であることを特徴とする請求項2記載の医療装置。
- コアが、リードプローブより高い曲げ剛性を有することを特徴とする請求項1〜3のいずれか一項記載の医療装置。
- コアが、特にコアの長さの大部分に亘って延びるMRTマーカーを備えることを特徴とする請求項1〜4のいずれか一項記載の医療装置。
- コアの遠端部に、MRTマーカーを備えることを特徴とする請求項5記載の医療装置。
- MRTマーカーが、以下の金属又は金属化合物;コバルト(Co)、ニッケル(Ni)、モリブデン(Mo)、ジルコニウム(Zr)、チタン(Ti)、マンガン(Mn)、ルビジウム(Rb)、アルミニウム(Al)、パラジウム(Pd)、白金(Pt)、クロム(Cr)又は二酸化クロム(CrO2)、鉄(Fe)及び鉄酸化物(FeO、Fe2O3、Fe3O4)、又はFePtの一つから成る微粒子又はナノ粒子で形成されることを特徴とする請求項5又は6記載の医療装置。
- 前記微粒子が、サイズ1μm〜150μmの鉄粒子であることを特徴とする請求項7記載の医療装置。
- 前記鉄粒子は、サイズ20μm〜70μmであることを特徴とする請求項8記載の医療装置。
- 前記鉄粒子は、サイズ40μm〜60μmであることを特徴とする請求項8又は9記載の医療装置。
- MRTマーカーが、コアの中心の縦軸に沿って集中されることを特徴とする請求項5〜10のいずれか一項記載の医療装置。
- コアに同心円状に配置される細長い化合物エレメントに前記マーカーが設けられることを特徴とする請求項11記載の医療装置。
- 前記コアがX線マーカーを備えることを特徴とする請求項1〜12のいずれか一項記載の医療装置。
- 前記X線マーカーは、バリウム(Ba)、タングステン(W)、タンタル(Ta)、オスミウム(Os)、プラセオジム(Pr)、白金(Pt)、金(Au)、又は鉛(Pb)を含むことを特徴とする請求項13記載の医療装置。
- 前記X線マーカーは、硫酸バリウムを含むことを特徴とする請求項14記載の医療装置。
- 非金属フィラメントが、ガラス繊維、セラミック繊維、高弾性率ポリエステル繊維、アラミド、ポリアラミド、パラアラミド合成繊維、超高分子量ポリエチレン繊維、及び/又は植物繊維で形成されることを特徴とする請求項1〜15のいずれか一項記載の医療装置。
- コアがアラミド繊維及びガラス繊維から成ることを特徴とする請求項1〜16のいずれか一項記載の医療装置。
- コアが、各々マトリックス材に埋め込んだ非金属フィラメントで形成される一つ以上の細長い化合物エレメントによって形成され、化合物エレメントが組織被覆マトリックスに埋め込まれることを特徴とする請求項1〜17のいずれか一項記載の医療装置。
- 前記マトリックス材の硬さが組織被覆マトリックスの硬さより高いことを特徴とする請求項18記載の医療装置。
- 前記マトリックス材がエポキシ樹脂で形成され、また組織被覆マトリックスがポリウレタン(PU)、PVC又はゴムで形成されることを特徴とする請求項18又は19記載の医療装置。
- リードプローブの遠位端に電極が設けられ、医療装置が心臓ペースメーカープローブを構成していることを特徴とする請求項1〜20のいずれか一項記載の医療装置。
- 医療装置が、コアの代わりにリードプローブ内に挿入でき、ロッド形状本体が放射線源を備えていることを特徴とする請求項1〜21のいずれか一項記載の医療装置。
- リードプローブが堅固な材料で形成されることを特徴とする請求項22記載の医療装置。
- リードプローブが可撓性材料で形成されることを特徴とする請求項22記載の医療装置。
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DE102011113816.5 | 2011-09-21 | ||
DE102011113816A DE102011113816A1 (de) | 2011-09-21 | 2011-09-21 | Medizinische Vorrichtung zum Einbringen in den menschlichen oder tierischen Körper |
US201161537685P | 2011-09-22 | 2011-09-22 | |
US61/537,685 | 2011-09-22 | ||
PCT/EP2012/003963 WO2013041235A1 (de) | 2011-09-21 | 2012-09-21 | Medizinische vorrichtung zum einbringen in den menschlichen oder tierischen körper |
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JP2014531130A Active JP6081463B2 (ja) | 2011-09-21 | 2012-09-21 | 人間や動物の身体に挿入する医療装置 |
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US (1) | US9358386B2 (ja) |
EP (1) | EP2758118B1 (ja) |
JP (1) | JP6081463B2 (ja) |
CN (1) | CN103957991B (ja) |
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DE102013216459B4 (de) * | 2013-08-20 | 2023-01-05 | Siemens Healthcare Gmbh | Medizinisches Instrument und Verfahren zur Lokalisierung eines medizinischen Instruments |
DE102014005994A1 (de) | 2014-04-23 | 2015-10-29 | Marvis Medical Gmbh | Stabförmiger Körper und medizinisches lnstrument |
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DE3526738A1 (de) * | 1985-07-26 | 1987-02-05 | Braun Melsungen Ag | Vorrichtung zur lagekontrolle eines zentralvenoesen katheters |
DE4124606C2 (de) * | 1991-07-25 | 1996-04-11 | Ruesch Willy Ag | Mandrin für medizinische Geräte |
US5843153A (en) * | 1997-07-15 | 1998-12-01 | Sulzer Intermedics Inc. | Steerable endocardial lead using magnetostrictive material and a magnetic field |
DE19900392C1 (de) | 1999-01-08 | 2000-08-24 | Krone Ag | Anschlußelelement |
US20030208142A1 (en) * | 2001-06-12 | 2003-11-06 | Boudewijn Alexander C | Vascular guidewire for magnetic resonance and /or fluoroscopy |
US6844492B1 (en) * | 2002-01-22 | 2005-01-18 | Nanoset, Llc | Magnetically shielded conductor |
DE10217509A1 (de) | 2002-04-19 | 2003-11-06 | Biotronik Mess & Therapieg | Katheter zur kardiovaskulären Anwendung |
US20050149002A1 (en) * | 2003-04-08 | 2005-07-07 | Xingwu Wang | Markers for visualizing interventional medical devices |
DE102005022688B4 (de) * | 2005-05-12 | 2011-06-30 | EPflex Feinwerktechnik GmbH, 72581 | Führungsdraht für ein medizinisches Instrument |
DE102005030472A1 (de) | 2005-06-28 | 2007-01-04 | Joachim-Georg Pfeffer | Stabförmiger Körper |
JP2011500209A (ja) * | 2007-10-16 | 2011-01-06 | カーディアック ペースメイカーズ, インコーポレイテッド | 非コイル状のワイヤ構造物を備えた刺激用および検知用リード線 |
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DE102008024976A1 (de) | 2008-05-23 | 2009-12-17 | Marvis Technologies Gmbh | Medizinisches Instrument |
EP2450067A1 (en) | 2010-10-18 | 2012-05-09 | MaRVis Technologies GmbH | Medical device |
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US9358386B2 (en) | 2016-06-07 |
EP2758118B1 (de) | 2015-07-08 |
CN103957991B (zh) | 2016-08-24 |
BR112014006593A2 (pt) | 2017-04-04 |
WO2013041235A1 (de) | 2013-03-28 |
US20140221818A1 (en) | 2014-08-07 |
CN103957991A (zh) | 2014-07-30 |
EP2758118A1 (de) | 2014-07-30 |
JP2014527875A (ja) | 2014-10-23 |
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