JP2004505721A - 固定経皮埋没物(インプラント)のための皮下、筋肉内ベアリング - Google Patents

固定経皮埋没物(インプラント)のための皮下、筋肉内ベアリング Download PDF

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JP2004505721A
JP2004505721A JP2002518879A JP2002518879A JP2004505721A JP 2004505721 A JP2004505721 A JP 2004505721A JP 2002518879 A JP2002518879 A JP 2002518879A JP 2002518879 A JP2002518879 A JP 2002518879A JP 2004505721 A JP2004505721 A JP 2004505721A
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bearing
flexible
socket
grid network
implant
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ハンス.グルンダイ
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エスカ インプランツ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー
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    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2250/00Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0014Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
    • A61F2250/0018Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in elasticity, stiffness or compressibility
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/00395Coating or prosthesis-covering structure made of metals or of alloys
    • A61F2310/00407Coating made of titanium or of Ti-based alloys

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Abstract

本発明は、骨断端(10)において体内的に繋ぎ留めることができ、外部人工装具の標準要素のための体外結合装置(18)を有する固定経皮埋没物のための皮下、筋肉内のカップリングに関する。カップリングは、柔軟性素材から成り、最小幅を持つ隙間が蛇腹の内壁とスリーブ(7)の外壁の間で維持されるような方式にて成形アタッチメント(4)の手段によって近位末端にてスリーブとの密閉接続を形成する蛇腹の形態における体内式カップリングスリーブに加えて、埋没物(2)を取り囲み、固定するソケット(7)を有する。柔軟性の格子網状組織(5)は、蛇腹の遠位末端に位置し、さらに高い弾性係数を持つ追加の格子網状組織(6)は前記追加の網状組織の遠位末端に取り付けられる。

Description

【0001】
【発明の属する分野】
本発明は、骨断端にて体内的に繋ぎ留めることができ、標準の外部人口装具成分のための体外結合装置を有する固定経皮埋没物のための皮下、筋肉内ベアリングに関する。
【0002】
【従来技術】
大腿切断を受けている患者にケアを提供するためのかかる埋没物は、例えば、独国特許第19826638号に包括的に記載されている。これによれば、脚成分を伴ったアダプタの形態での埋没物は、大腿骨断端にて髄内に配置される。中間片が脚成分に隣接し、大腿断端の出現点を介して存在する。この接続の問題ある特徴は、開口位置が無菌に保たれなければならないので、肢断端の封鎖である。加えて、大腿断端における筋肉周辺部及び皮膚への固定中間片の適応が決定的な点である。理想的には、皮膚、筋肉組織及び結合組織は、固定埋没物に比べて動くことが可能でなければならない。当然、この要求事項は、出現点を無菌に保つための尽力を妨げる。
【0003】
冒頭で述べたタイプの皮下、筋肉内ベアリングは、米国特許第4,158,895号から知られており、柔軟性のある素材を含み、堅固な方式で埋没物を遠位に取り囲むソケットを有する。
このベアリングの場合、ベアリングを取り囲む軟組織の可動性は、固定埋没物に対して、無い。
【0004】
さらに重要な態様は、皮下ベアリングは外界の細菌による感染に対する有効なバリアを形成しなければならないということである。
【0005】
【発明が解決しようとする課題】
このような背景に対して、本発明のための課題は、身体の断端部分における開口部位が炎症の高いリスクにさらされることなく軟組織が固定埋没物に対して動くことが可能であるようにこの一般型の皮下ベアリングをさらに発展させることである。
【0006】
【課題を解決するための手段】
この問題は、請求項1の特性を示す特徴を持つ皮下、筋肉内のベアリングによって解決される。有利なさらなる発展は補助クレームから生じる。
【0007】
【発明の実施の形態】
従って、特徴が提供され、それによって本発明に基づいた皮下、筋肉内のベアリングが、柔軟性のヒダのある蛇腹の形態にて体内的に配置されるべき内包鞘を有する。このヒダのある蛇腹は、その上に形成されるエリを介して密封形態でソケットに近位に接続され、すなわち、ヒダのある蛇腹の内壁とソケットの外壁の間で最小幅1mmの中空の空間が残存するような方法にて接続され、それによって柔軟性の格子網状組織がヒダのある蛇腹で遠位に配置され、それによって追加の2[sic]格子網状組織が遠位側にてこの[柔軟性の格子]網状組織に隣接し、及びそれによって追加の格子網状組織が、柔軟性の格子網状組織に比べて高い弾性係数を有する。
【0008】
ソケットは当該埋没物成分の上に堅固に着座させられ、例えば、埋没物成分の上におけるソケットのこの着座が細菌耐性であるような方法にて、それに均一に接着剤で止められる。この領域では、内包鞘はヒダのある蛇腹の形態で成形され、それは、例えば、ソケットも含む単一成分の形態におけるシリコーンから製造することができる。
【0009】
ヒダのある蛇腹の形態における内包鞘の構成はベアリングを取り囲む軟組織の、固定埋没物に対して極めて良好な可動性を提供する。
【0010】
前述の柔軟性のある格子網状組織は、ヒダのある蛇腹に対して遠位に配置され、それは好ましくはシリコーンを含むこともでき、任意には、ヒダのある蛇腹も含む単一の成分形態にて構成される。移植後の時間と一緒になって、この柔軟性のある格子網状組織は、周りの筋肉と共に密接な結合形成を保証する。
【0011】
前述の追加の格子網状組織は、柔軟性の格子網状組織に遠位に隣接し、それによって、追加の格子網状組織は特に好ましくは、チタンを含有する金属性織物又はマット羊毛から製造される。このチタン羊毛はそれによって身体の断端における患者の皮膚との緊密な結合形成に入り、すなわち、皮膚はチタンの網の中に増殖する。
【0012】
ベアリング全体が身体の断端に埋め込まれる。固定埋没物だけがベアリングのソケットから出現し、標準の外部人口装具成分のための前述の結合装置を提示する。
【0013】
細菌又は汚れの粒子は身体の断端までは侵入できないが、ヒダのある蛇腹により形成されるベアリングの中空空間において捕捉される。
【0014】
本発明に基づいた皮下、筋肉内ベアリングの構成を用いて、敗血症による重篤な合併症の恐れがなく、長期間を基本にした骨断端における埋没物を患者に提供することができる。チタンの網に皮膚が内部増殖するので、及びシリコーン格子の網状組織に筋肉組織が内部増殖するので、細菌などの身体断端への侵入に対して極めて有効な天然のバリアが築かれる。
【0015】
唯一の図解に従って、実施態様の実施例に基づいて本発明をさらに詳細に説明する。
【0016】
大腿骨断端10とともにその中に大腿断端14を描く。
埋没物2の脚成分13を管状の大腿骨断端10に導入する。内包アダプタ15は遠位側にてこの[脚成分]に隣接し、二重円錐の形態にて中間片12を内包する。この中間片は、大腿断端の内部と体外周辺部との間の接続片である。従って、大腿断端14の皮膚11を通り抜ける。外側に位置するその区分に体外結合装置18が隣接し、それによってこの体外結合装置は標準の外部人口装具成分(示さず)を収容する。
【0017】
完全に体内に、すなわち、大腿断端14における皮下及び筋肉内に配置されるベアリング1は、本質的に内部管又はソケット7を含み、ここではそれは円筒状であり、埋没物2に堅固に接続され、本場合では、その円筒状に移行する領域にて均一に中間片12に接着剤で止められる。接着剤で止められた部位は、細菌や汚れに対して細菌耐性を形成する。内包鞘3は、ソケット7の上に形成されるエリ4の上に、ヒダのある蛇腹の形態にて配置される。ソケット7の外壁と内包鞘3の内壁との間の最小幅は、少なくとも1mmに等しく、例えば10mmまでに等しくなることができる。
【0018】
遠位側にて、内包鞘3が、1片の素材の形態にて、多数の開口部21を持ち、手術後の時間経過の間に筋肉組織が侵入する柔軟な格子網状組織5を横切る。
【0019】
遠位側にて、追加の格子網状組織6が格子網状組織5に隣接し、それによって、この追加の格子網状組織はさらに高い弾性係数を有し、特に好ましくはチタン繊維を含む金属性羊毛から成る。皮膚組織は、手術後の時間経過の間にこの格子網状組織6を介して増殖する。
【0020】
さらに、内包鞘15が、その周辺にて、骨粒子が増殖する目の粗いメッシュの3次元の、空間的な網構造20を提供され、このようにそれは骨の側における細菌の侵入に対する追加のバリアを形成する。
【0021】
埋没物2の脚13はさらに、骨管の内側にて類似の表面を持つ。
【0022】
この接合点にて、ここでは差し込み式の円錐形態に構成され、人口股関節のための脚のアダプタとして役立つことができる脚13の近位末端19に言及してもよい。

Claims (6)

  1. 骨断端(10)において体内的に繋ぎ留めることができ、柔軟性の素材を含む標準の外部人口装具成分のための体外結合装置(18)を有し、堅固な方式にて埋没物(2)を遠位に取り囲むソケット(7)を有する固定経皮埋没物(2)のための皮下、筋肉内のベアリング(1)であって、
    柔軟性のヒダのある蛇腹の形態にて体内的に配置されるべき内包鞘(3)が密封方式にてその上に形成されるエリ(4)を介してソケット(7)に近位に接続され、かかる方式において最小幅を持つ中空空間がヒダのある蛇腹の内壁とソケット(7)の外壁との間で空いたままであり、それによって、柔軟性の格子網状組織(5)がヒダのある蛇腹にて遠位に配置され、それによって追加の格子網状組織(6)が遠位側でこの柔軟性の格子網状組織に隣接し、それによって追加の格子網状組織が柔軟性の格子網状組織(5)に比べて高い弾性係数を有することを特徴とするベアリング。
  2. 最小幅が1mmに等しくなる請求項1に記載のベアリング(1)。
  3. シリコーンを含む請求項1又は2に記載のベアリング(1)。
  4. 柔軟性の格子網状組織(5)がシリコーンを含む請求項1〜3のいずれか1項記載のベアリング(1)。
  5. 追加の格子網状組織(6)が金属性織物又はマット羊毛を含む請求項1〜4のいずれか1項記載のベアリング(1)。
  6. 金属性の羊毛がチタン繊維から形成される請求項5に記載のベアリング(1)。
JP2002518879A 2000-08-15 2001-05-18 固定経皮埋没物(インプラント)のための皮下、筋肉内ベアリング Pending JP2004505721A (ja)

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US6843808B2 (en) 2005-01-18
US20030109878A1 (en) 2003-06-12
ATE300256T1 (de) 2005-08-15
EP1309294A1 (de) 2003-05-14
ES2245989T3 (es) 2006-02-01
EP1309294B1 (de) 2005-07-27
DE10040590C2 (de) 2002-07-18
DE10040590A1 (de) 2002-03-07
WO2002013729A1 (de) 2002-02-21

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