JP2020522367A - 機械的に膨張可能な心臓弁 - Google Patents
機械的に膨張可能な心臓弁 Download PDFInfo
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- A61F2/02—Prostheses implantable into the body
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- 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
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2002/9505—Instruments specially adapted for placement or removal of stents or stent-grafts having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
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- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
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- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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Abstract
Description
開示されている実施形態は、人工デバイスとともに使用するように適合され得、人工デバイスは、心臓の自然の弁輪(たとえば、肺弁輪、僧帽弁輪、および三尖弁輪)のいずれかの中に植え込み可能であり、さまざまな送達アプローチ(たとえば、逆行性、順行性、経中隔、経心室、経心房など)のいずれかとともに使用され得るということが理解されるべきである。また、開示されている実施形態は、身体の他のルーメンの中に植え込まれたプロテーゼとともに使用され得る。
14 人工心臓弁
18 送達装置
22 フレーム
24 弁構造体
26 流入端部部分
28 中間部分
30 流出端部部分
32 格子ストラット
32a 内側ストラット
32b 外側ストラット
34 頂点部
36 アパーチャー
37 座ぐり穴
38 アパーチャー
40 締結具
41 ヘッド部分
42 サポートストラット
46 スペーサー
48 弁尖アセンブリ
50 スカート
56 縫合糸
60 遠位端部
62 近位端部
70 ハンドル
72 シャフト
76 位置決め部材
78 遠位端部
82 遠位端部部分
86 第2の作動部材
88 近位端部部分
94 リリース−アンド−ロッキングユニット
96 本体部
98 クランプ
100 遠位端部
102 ジョー
106 解放部材
107 遠位端部部分
108 近位端部部分
110 遠位端部部分
112 連結部分
114 タブ
116 ノッチ
120 ノッチ
122 タブ
124 カム表面
126 カム表面
128 スロット
130 締結具
132 アパーチャー
134 矢印
136 矢印
138 ボア
140 近位端部
142 中央ボア
144 リードスクリュー
148 ネジ山付きアクチュエーターナット
150 ネジ山
152 外側表面
154 アパーチャーまたはウィンドウ
156 外側表面
158 リッジ部
160 エクステンション部分
162 レッグ部分
164 U字形状のアパーチャーまたはスロット
168 解放ノブ
170 スライド可能な部材
172 ユーザー係合可能部分
178 ボアまたは開口部
180 近位端部部分
182 クランピング部材、クランピングメカニズム、保持機構
184 プラグ部材
186 スクリュー部材
188 ノブ
190 半径方向のボア
192 表面
194 キャプチャードナット
200 フレーム
204 格子ストラット
204a 内側ストラット
204b 外側ストラット
208 アパーチャー
210 締結具
214 想像線
218 線形セグメント
220 中間セグメント
224 拡大された端部部分
226a 長手方向の縁部
226b 長手方向の縁部
228 丸みを帯びた縁部
250 オープンセル
254 枢動ジョイント
256 ギャップ
264 弁尖アセンブリ
266 スカート
270 縫合糸
Claims (19)
- 植え込み可能な医療用デバイスであって、前記医療用デバイスは、
第1の方向に延在する複数の第1のストラットの第1のセットと、
第2の方向に延在する複数の第2のストラットの第2のセットと
を備え、
前記第1のストラットは、前記第2のストラットと織り合わされており、環状のフレームを形成しており、前記環状のフレームは、半径方向に圧縮可能および膨張可能になっており、
それぞれの第1のストラットは、少なくとも1つの第2のストラットに枢動可能に接続されている、医療用デバイス。 - それぞれの第1のストラットは、前記第1のストラットの長さに沿ってそれぞれから離間して配置された複数の突起部を含み、それぞれの第2のストラットは、前記第2のストラットの長さに沿って延在する複数のアパーチャーを含み、前記第1のストラットの前記突起部は、前記第2のストラットのそれぞれのアパーチャーの中へ延在している、請求項1に記載の医療用デバイス。
- それぞれの第1のストラットは、半径方向内向きに、隣接する第2のストラットのアパーチャーの中へ延在する少なくとも1つの突起部と、半径方向外向きに、隣接する第2のストラットのアパーチャーの中へ延在する少なくとも1つの突起部とを有している、請求項2に記載の医療用デバイス。
- 前記突起部は、前記第1のストラットの上に一体的に形成されている、請求項1から3のいずれか一項に記載の医療用デバイス。
- それぞれの第1のストラットは、少なくとも1つの第2のストラットの半径方向外側を通過し、また、少なくとも1つの第2のストラットの半径方向内側を通過する、請求項1から4のいずれか一項に記載の医療用デバイス。
- 前記環状のフレームの内側に装着されている複数の弁尖を含む弁部材をさらに含む、請求項1から5のいずれか一項に記載の医療用デバイス。
- 植え込み可能な医療用デバイスであって、前記医療用デバイスは、
複数の相互接続されたストラットを含む半径方向に膨張可能および圧縮可能な環状のフレームであって、前記複数のストラットは、複数の第1のストラットの第1のセットおよび複数の第2のストラットの第2のセットを含み、前記第1のストラットは、接合部において隣接する第2のストラットに重なり合っており、前記環状のフレームの膨張または圧縮は、前記第1のストラットを前記接合部において前記第2のストラットに対して枢動させる、環状のフレームを含み、
前記フレームは、前記接合部において複数のヒンジを含み、前記複数のヒンジは、前記接合部において、前記第1のストラットから前記第2のストラットの対応する非円形アパーチャーを通って延在しており、
それぞれのヒンジは、第2のストラットの対応するアパーチャーの中で回転することが可能な円筒形状の枢動部分と、前記枢動部分から延在するロッキング部材とを含み、前記ロッキング部材は、前記第2のストラットの前記対応するアパーチャーに対してサイズ決めおよび形状決めされており、前記フレームの半径方向の膨張および圧縮の際に、前記ロッキング部材が前記対応するアパーチャーから回転方向にオフセットされる場合はいつでも、前記第1および第2のストラットの半径方向の分離を防止するようになっている、医療用デバイス。 - 前記第2のストラットは、前記非円形アパーチャーを取り囲む凹んだ部分を備えて形成されており、前記ヒンジの前記ロッキング部材が、前記凹んだ部分の中に配設されている、請求項7に記載の医療用デバイス。
- 前記医療用デバイスは、1つまたは複数のアクチュエーターをさらに含み、前記1つまたは複数のアクチュエーターは、前記フレームの上に装着されており、圧縮直径を画定する半径方向に圧縮された状態と、膨張直径を画定する半径方向に膨張された状態との間で、前記フレームを半径方向に膨張および圧縮させるように構成されており、前記ロッキング部材は、前記圧縮直径、前記膨張直径、および、前記圧縮直径と前記膨張直径との間のすべての直径において、前記第2のストラットの中の対応する非円形アパーチャーから回転方向にオフセットされている、請求項7または8に記載の医療用デバイス。
- 前記ヒンジは、前記第1のストラットの上に一体的に形成されている、請求項7から9のいずれか一項に記載の医療用デバイス。
- 前記ヒンジは、前記第1および第2のストラットとは別個のコンポーネントであり、
前記第1のストラットのそれぞれは、複数の非円形アパーチャーを含み、
それぞれのヒンジは、接合部において、第1のストラットの中のアパーチャー、および、第2のストラットの中の隣接するアパーチャーを通って延在している、請求項7から9のいずれか一項に記載の医療用デバイス。 - 前記ヒンジのそれぞれは、保持部材をさらに含み、前記保持部材は、前記第1のストラットの上の前記非円形アパーチャーの中に保たれるように構成されている、請求項11に記載の医療用デバイス。
- 前記ヒンジのそれぞれは、円形ベース部材をさらに含み、前記円形ベース部材は、前記第1のストラットの上の前記非円形アパーチャーのうちの1つを取り囲む円形凹部の中に保たれるように構成されている、請求項11または12に記載の医療用デバイス。
- 前記ロッキング部材は、非円形形状を含む、請求項7から13のいずれか一項に記載の医療用デバイス。
- 前記ロッキング部材は、少なくとも2つの耳部を備えた非円形中央突出部を含み、前記少なくとも2つの耳部は、前記ストラットに対して平行の平面の中で、前記非円形中央突出部から外向きに延在している、請求項7から14のいずれか一項に記載の医療用デバイス。
- 植え込み可能な医療用デバイスを組み立てる方法であって、前記方法は、
複数の第1のストラットを提供するステップと、
複数の第2のストラットを提供するステップであって、それぞれの第2のストラットは、その長さに沿って間隔を置いて配置された複数の非円形アパーチャーを含む、ステップと、
前記第2のストラットの前記非円形アパーチャーを通してヒンジを挿入することによって、前記第1および第2のストラットを互いに接続し、環状のフレームを形成するステップであって、それぞれのヒンジは、対応する非円形アパーチャーの中に配設されている円筒形状の枢動部分、および、前記枢動部分の一方の端部から延在するロッキング部材を有しており、前記ロッキング部材は、前記ヒンジが前記非円形アパーチャーの中へ挿入される場合に、対応する非円形アパーチャーと回転方向に整合させられている、ステップと、
前記第2のストラットに対して前記第1のストラットを枢動させ、前記ロッキング部材をそれらの対応する非円形アパーチャーから回転方向にオフセットさせるステップと、
前記フレームの上に1つまたは複数のアクチュエーターを装着するステップであって、前記1つまたは複数のアクチュエーターは、所定の直径の範囲の中に、前記フレームを半径方向に膨張および圧縮させるように構成されており、前記所定の直径の範囲は、前記第1のストラットと前記第2のストラットとの間の所定の角度の範囲に対応しており、前記所定の角度の範囲において、前記ロッキング部材は、常に前記非円形アパーチャーから回転方向にオフセットされている、ステップと
を含む、方法。 - それぞれの第1のストラットは、その長さに沿って間隔を置いて配置された複数の非円形アパーチャーを含み、前記第1および第2のストラットを接続するステップは、前記第1のストラットおよび前記第2のストラットの前記非円形アパーチャーを通して前記ヒンジを挿入するステップをさらに含む、請求項16に記載の方法。
- 前記ヒンジは、前記第1のストラットに一体的になっている、請求項16に記載の方法。
- 前記第1のストラットを前記第2のストラットと織り合わせるステップをさらに含む、請求項16から18のいずれか一項に記載の方法。
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US10869759B2 (en) | 2020-12-22 |
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