JP2020039931A - ビームスキャニングによる上皮性管腔器官の光学的イメージング方法およびシステム - Google Patents
ビームスキャニングによる上皮性管腔器官の光学的イメージング方法およびシステム Download PDFInfo
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Abstract
Description
(連邦政府により支援された研究に関する声明)
信号320を受けることができるデジタルカウンタ321と、プルバックモータエンコーダ信号330を受けることができるデジタルカウンタ331の値を記録するために使用できる。エンコーダ信号320、330は、TTLパルス列であってもよく、TTLパルス列は、モータの1回転当り所定のレートで切り替わってもよい。このように、デジタルカウンタを用いてこれらの切り替えをカウントすることにより、モータの現在位置を測定できる。A−D変換器311とデジタルカウンタ321、331はデータ収集ユニット340に内蔵できる。
と、カテーテル内部被覆705へ取り付けるためのその近端側アタッチメント720、および遠端側アタッチメント710が示されている。(既に説明し、さらに図8A〜図8Cに示したように)、断面図Bに詳細に示すように、遠端側アタッチメント710では、高速交換カテーテルで使用するためのガイドワイヤを受けるために被覆715に小孔が設けられている。このバルーン700は、バルーンの長さまで伸びた内側被覆722に取り付けることができる。バルーン700の近端側アタッチメント720の詳細を断面図Cに示す。バルーン720は、バルーン700内に入った直後に終端する外側被覆721に取り付けられている。この外側被覆721は内側被覆722に接着することができる。外側被覆721と内側被覆722とにより形成された経路(channel)を通してバルーンを膨張させることができるように、2つの小孔724、725を外側被覆721に設けてもよい。この代表的な設計のバルーンカテーテルの代表的な長所の一つは、バルーン720に沿って、バルーン720のその大部分に伸びた単一の被覆を用いる点にある。これらの被覆はイメージングビームに収差を惹起しイメージング品質を劣化させる可能性があるため、バルーン中に2組に代えて1組の被覆を使用できれば画像品質を改善できるものである。
の電磁放射をモータ1010の先まで誘導する。この光/放射は光学部材1110により集光され、モータのドライブシャフト1111に配置した反射エンコーダ1120へ反射される。この反射エンコーダ1120は高反射率、低反射率の領域を交互に含むことができる。モータシャフト1111が回転すると、このファイバーに反射投入される光はエンコーダ1120が提供する情報に従って変化してもよい。反射光学パワーを検出することにより、モータ1010回転の位置、速度および方向を測定することができる。この情報は、モータ1010の制御および/または画像とそのビーム位置の登録に用いることができる。
に形成されたアブレーションマーク1900を例示する。
110 カテーテルスキャナー
125 内部コア
120 バルーンイメージングカテーテル
130 光学的透過性被覆
145 管腔器官
Claims (29)
- 少なくとも一つの管腔又は中空サンプルの内部の少なくとも一つの部分のデータを取得する装置であって、
前記少なくとも一つの部分に少なくとも一つの電磁放射を送受するように構成された光学的第1の構成部と、
前記第1の構成部を少なくとも部分的に囲繞し、ガイド構成部を挿入することができる少なくとも一つの部分を含む、第2の構成部と、
前記データの生成を容易にするために、前記第1の構成部を前記少なくとも一つの管腔又は中空サンプルの内部にセンタリングするように作動するように構成された、第3の構成部と、
前記データを取得するように構成されたコンピュータ構成部と、を備え、
前記第3の構成部は、バルーンを含み、
前記第3の構成部が作動したときに、前記第1の構成部の少なくとも一つの部分は、前記少なくとも一つの管腔又は中空サンプルに関して、プルバックスキャニング方向に沿った軸方向の動きを提供するために、前記第2の構成部を通る前記軸の周りに、且つ該軸に沿って回転し、
前記コンピュータ構成部は、前記軸方向の動きの間に、センタリングされた前記第1の構成部のイメージング範囲の調節のために、前記バルーンの表面の位置を決定することを含む位置データを含む前記データを取得する、
装置。 - 患者の口または鼻の少なくとも一つを介して挿入可能に小型化されて構成された、請求項1記載の装置。
- 前記少なくとも一つのサンプルに関して前記第1の構成部の位置および回転角度からなる前記位置データを含む前記少なくとも一つの部分のデータを受信し、記憶するように構成されたさらなる構成部を備える、請求項1記載の装置。
- 前記さらなる構成部はスキャニング構成部を含み、前記少なくとも一つのサンプルを少なくとも一回スキャンする間に前記スキャニング構成部から取得したエンコーダ信号をデジタルにカウントして、前記位置および前記回転角度を検出する、請求項3記載の装置。
- 前記位置および前記回転角度を受け、前記位置および前記回転角度を用いて前記少なくとも一つの部分に関連する少なくとも一つの画像を生成するように構成されたさらなる構成部を備える、請求項3記載の装置。
- 前記さらなる構成部は、さらに、前記少なくとも一つの画像の少なくとも一つの空間歪みを補正するように構成されている、請求項5記載の装置。
- 前記少なくとも一つの部分のデータとして、複数の画像を受信するように、制御可能な処理構成部をさらに備える、請求項1記載の装置。
- 前記データは、前記少なくとも一つのサンプルに関連する干渉データである、請求項1記載の装置。
- 前記干渉データは、スペクトル領域光コヒーレンストモグラフィーデータ、時間領域光コヒーレンストモグラフィーデータまたは光周波数領域イメージングデータの少なくとも一つである、請求項8記載の装置。
- 少なくとも一つの管腔又は中空サンプルの内部の少なくとも一つの部分のデータを取得する装置であって、
前記少なくとも一つの部分に少なくとも一つの電磁放射を送受するように構成された光学的第1の構成部と、
前記データの生成を容易とするために、前記第1の構成部を前記少なくとも一つの管腔又は中空サンプルの内部にセンタリングするように作動するように構成された、少なくとも一つの非膨張部分を含む第2の構成部と、
前記データを取得するように構成されたコンピュータ構成部と、を備え、
前記第2の構成部は、バルーンを含み、
前記第2の構成部が作動したときに、少なくとも前記第1の構成部は、前記少なくとも一つの管腔又は中空サンプルに関して、プルバックスキャニング方向に沿った軸方向の動きを提供するために、前記軸の周りに、且つ該軸に沿って回転し、
前記コンピュータ構成部は、前記軸方向の動きの間に、センタリングされた前記第1の構成部のイメージング範囲の調節のために、前記バルーンの表面の位置を決定することを含む位置データを含む前記データを取得する、
装置。 - 患者の口または鼻の少なくとも一つを介して挿入可能に小型化されて構成された、請求項10記載の装置。
- 前記少なくとも一つの非膨張部分は、伸張可能で折り畳み可能なバスケットである、請求項10記載の装置。
- 前記少なくとも一つのサンプルに関して、前記第1の構成部の位置および回転角度からなる前記位置データを含む前記データを受信し、記憶するように構成されたさらなる構成部を備える、請求項10記載の装置。
- 前記さらなる構成部はスキャニング構成部を含み、前記少なくとも一つのサンプルを少なくとも一回スキャンする間に前記スキャニング構成部から取得したエンコーダ信号をデジタルにカウントして、前記位置および前記回転角度を検出する、請求項13記載の装置。
- 前記位置および前記回転角度を受信し、前記位置および前記回転角度を用いて前記少なくとも一つの部分に関連する少なくとも一つの画像を生成するように構成されたさらなる構成部を備える、請求項13記載の装置。
- 前記さらなる構成部は、さらに、前記少なくとも一つの画像の少なくとも一つの空間歪みを補正するように構成されている、請求項15記載の装置。
- 前記少なくとも一つの部分のデータとして、複数の画像を受信するように制御可能な処理構成部をさらに備える、請求項10記載の装置。
- 前記データは、前記少なくとも一つのサンプルに関連する干渉データである、請求項10記載の装置。
- 前記干渉データは、スペクトル領域光コヒーレンストモグラフィーデータ、時間領域光コヒーレンストモグラフィーデータまたは光周波数領域イメージングデータの少なくとも一つである、請求項18記載の装置。
- 少なくとも一つの管腔又は中空サンプルの内部の少なくとも一つの部分のデータを取得する装置であって、
前記少なくとも一つの部分に少なくとも一つの電磁放射を送受するように構成された光学的第1の構成部と、
前記データの生成を容易とするために、前記第1の構成部を前記少なくとも一つの管腔又は中空サンプルの内部にセンタリングするように作動するように構成された、少なくとも一つの非膨張部分を含む第2の構成部と、
前記データを取得するように構成されたコンピュータ構成部と、を備え、
前記第2の構成部は、バルーンを含み、
前記第2の構成部が作動したときに、少なくとも前記第1の構成部は、前記少なくとも一つの管腔又は中空サンプルに関して、プルバックスキャニング方向に沿った軸方向の動きを提供するために、前記軸の周りに、且つ該軸に沿って回転し、
前記コンピュータ構成部は、前記軸方向の動きの間に、センタリングされた前記第1の構成部のイメージング範囲の調節のために、前記バルーンの表面の位置を決定することを含む位置データを含む前記データを取得し、
前記位置データは、前記少なくとも一つの管腔または中空サンプルに関して、前記第1の構成部の位置または向きの少なくとも一つを含む、装置。 - 患者の口または鼻の少なくとも一つを介して挿入可能に小型化されて構成された、請求項20記載の装置。
- 少なくとも一つの管腔又は中空サンプルの内部の少なくとも一つの部分のデータを取得する装置であって、
前記少なくとも一つの部分に少なくとも一つの可視の電磁放射を送受するように構成された光学的第1の構成部と、
前記第1の構成部が前記少なくとも一つの管腔又は中空サンプルの内部にセンタリングされるように作動するように構成された第2の構成部と、
前記データを取得するように構成されたコンピュータ構成部と、を備え、
前記第2の構成部は、バルーンを含み、
前記第2の構成部が作動したときに、少なくとも前記第1の構成部は、前記少なくとも一つの管腔又は中空サンプルに関して、プルバックスキャニング方向に沿った軸方向の動きを提供するために、前記軸の周りに、且つ該軸に沿って回転し、
前記コンピュータ構成部は、前記軸方向の動きの間に、センタリングされた前記第1の構成部のイメージング範囲の調節のために、前記バルーンの表面の位置を決定することを含む位置データを含む前記データを取得し、
前記第1の構成部は、前記バルーンを通して少なくとも一つの電磁放射を送受するように構成された、装置。 - 少なくとも一つの管腔又は中空サンプルの内部の少なくとも一つの部分のデータを取得する装置であって、
前記少なくとも一つの部分に少なくとも一つの第1の電磁放射を送受し、前記少なくとも一つの部分の構造的変化を生成するために少なくとも一つの第2の電磁放射を送信する光学的第1の構成部と、
前記第1の構成部が前記少なくとも一つの管腔又は中空サンプルの内部においてセンタリングされるように作動するように構成された第2の構成部と、
前記少なくとも一つの部分のデータを取得するように構成されたコンピュータ構成部と、を備え、
前記第2の構成部は、バルーンを含み、
前記第2の構成部が作動したときに、少なくとも前記第1の構成部は、前記少なくとも一つの管腔又は中空サンプルに関して、プルバックスキャニング方向に沿った軸方向の動きを提供するために、前記軸の周りに、且つ該軸に沿って回転し、
前記コンピュータ構成部は、前記軸方向の動きの間に、センタリングされた前記第1の構成部のイメージング範囲の調節のために、前記バルーンの表面の位置を決定することを含む位置データを含む前記データを取得する、
装置。 - 少なくとも一つの管腔又は中空サンプルの内部の少なくとも一つの部分のデータを取得する装置であって、
前記少なくとも一つの電磁放射を前記少なくとも一つの部分に向ける部位を含み、前記少なくとも一つの部分に少なくとも一つの電磁放射を送受するように構成され、前記データを取得するように構成された光学的第1の構成部と、
前記第1の構成部を少なくとも部分的に囲繞する第2の構成部と、
前記第2の構成部を少なくとも部分的に囲繞し、前記第1の構成部の前記部位の周辺の空間的に外側の位置まで延伸することができる、第3の構成部と、
前記第1の構成部が前記少なくとも一つの管腔又は中空サンプルの内部においてセンタリングするように作動するように構成された第4の構成部と、
前記データを取得するように構成されたコンピュータ構成部と、を備え、
前記第4の構成部は、バルーンを含み、
前記第4の構成部が作動したときに、前記第1の構成部の少なくとも一つの部分は、前記少なくとも一つの管腔又は中空サンプルに関して、プルバックスキャニング方向に沿った軸方向の動きを提供するために、前記第2の構成部を通る前記軸の周りに、且つ該軸に沿って回転し、
前記コンピュータ構成部は、前記軸方向の動きの間に、センタリングされた前記第1の構成部のイメージング範囲の調節のために、前記バルーンの表面の位置を含む位置データを含む前記データを取得する、
装置。 - 第4の構成部が、前記第2の構成部および前記第3の構成部の間を延伸する経路(channel)を介して膨張するように構成されたバルーンを含む、請求項24記載の装置。
- 少なくとも一つの管腔又は中空サンプルの内部の少なくとも一つの部分のデータを取得する装置であって、
前記少なくとも一つの部分に少なくとも一つの電磁放射を送受するように構成された光学的第1の構成部であって、前記少なくとも一つの電磁放射を前記少なくとも一つの部分に向け、且つ、前記データを取得する部位を含む光学的第1の構成部と、
前記光学的第1の構成部内の前記部位の長手方向の並進を制御するように構成された作動構成部と、
前記光学的第1の構成部を少なくとも部分的に囲繞する第2の構成部と、
前記光学的第1の構成部を前記少なくとも一つの管腔又は中空サンプルの内部の前記センタリング可能な所定の部位に配置するように作動するように構成された第3の構成部と、
前記データを取得するように構成されたコンピュータ構成部と、を備え、
前記第3の構成部は、バルーンを含み、
前記作動構成部は、前記部位の近傍に配設され、前記少なくとも一つの管腔または中空サンプルの内部に位置し、
前記作動構成部は、前記少なくとも一つの管腔又は中空サンプルに関して、プルバックスキャニング方向に沿った軸方向の動きを提供するために、前記光学的第1の構成部の少なくとも一つの部分を前記軸の周りに、且つ該軸に沿って回転し、
前記コンピュータ構成部は、前記軸方向の動きの間に、センタリングされた前記第1の構成部のイメージング範囲の調節のために、前記バルーンの表面の位置を決定することを含む位置データを含む前記データを取得する、
装置。 - 前記少なくとも一つの部分の方向に向けられた前記少なくとも一つの電磁放射の、前記少なくとも一つの部分に関して、回転角度または位置の少なくとも一つを決定するように構成された少なくとも一つの第4の構成部をさらに備える、請求項26記載の装置。
- 前記作動構成部がモータである、請求項26記載の装置。
- 前記少なくとも一つの部分は、解剖学的部分である、請求項26に記載の装置。
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