JP5457834B2 - 検出器ヘッドとの近接を検知して衝突を回避する装置及び方法 - Google Patents
検出器ヘッドとの近接を検知して衝突を回避する装置及び方法 Download PDFInfo
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Description
Claims (13)
- 放射線を検出するよう構成される放射線検知部分を有する放射線検知面;及び
前記放射線検知部分に配置され、前記放射線検知面と被験対象との衝突とともに前記放射線検知面と前記被験対象との近さを検出するよう構成される、複数の容量性要素;
を有する放射線検出器ヘッドであって、
前記放射線検知面は:
放射線コリメータ;及び
放射線が前記放射線コリメータを通過した後に該放射線を検出するよう配置される放射線検出器の配列;
を有し、
前記複数の容量性要素は相隔たった平行導電板を有し、近接センサ及び衝突センサとして利用される、ことを特徴とする放射線検出器ヘッド。 - 前記放射線検出器の配列は:
(i)当該1又はそれ以上のシンチレータを見るよう配置される複数の光センサと光学的に結合される1又はそれ以上のシンチレータ,及び
(ii)放射線を吸収し、それに応答して電気信号を出力するよう構成される複数の放射線検知要素
のうち一方を有する、請求項1記載の放射線検出器ヘッド。 - 前記放射線検知面は、平面であり、
前記複数の容量性要素は、前記放射線検知面にわたって分布し且つ該放射線検知面と平行に整列する導電板の配列を有し、
前記複数の容量性要素は、前記平行導電板の1つに交流電気信号を適用して、前記近さに応答して引き起こされる前記容量性要素の夫々のキャパシタンスの変化を検出することによって、前記近接センサとして利用され、
前記複数の容量性要素は、前記衝突による前記平行導電板の間の空間の機械的な変形に応答して前記平行導電板の間を流れる伝導性電流を検出することによって、前記衝突センサとして利用される、請求項1記載の放射線検出器ヘッド。 - 前記放射線検知面は:
平面である当該放射線検知面に直角な方向に沿って放射線を平行にするよう配置される放射線コリメータ;及び
放射線が前記放射線コリメータを通過した後に該放射線を検出するよう配置される放射線検出器の配列;
を有する、請求項3記載の放射線検出器ヘッド。 - 前記導電板の配列は、夫々の容量板に関連する電気特性のサンプリングをサポートするよう電気的に相互接続される、請求項3記載の放射線検出器ヘッド。
- 前記導電板の配列は、当該導電板の配列を定めるようパターン化されている導電性フィルムを有する、請求項3記載の放射線検出器ヘッド。
- 当該放射線検出器ヘッドの側部に配置され、当該放射線検出器ヘッドの前記側部との近さを検出するよう構成される1又はそれ以上の容量性要素を更に有する、請求項1記載の放射線検出器ヘッド。
- 放射線を検出するよう構成される放射線検知部分を有する放射線検知面;及び
前記放射線検知部分に配置され、前記放射線検知面と被験対象との衝突とともに前記放射線検知面と前記被験対象との近さを検出するよう構成される、複数の容量性要素;を有する放射線検出器ヘッドであって、
前記放射線検知面は:
放射線コリメータ;及び
放射線が前記放射線コリメータを通過した後に該放射線を検出するよう配置される放射線検出器の配列;
を有し、
前記複数の容量性要素は相隔たった平行な導電板を有し、近接センサ及び衝突センサとして利用される、ことを特徴とする放射線検出器ヘッドを用いて実行される画像データ取得方法であって:
前記被験対象に対して前記放射線検出器ヘッドを移動させる工程;
前記移動の間に又は前記移動の間の固定の間隔の間に前記放射線検出器ヘッドにより前記被験対象から放射線データを取得する工程;
前記移動の間に、前記容量性要素の電気特性を測定する工程;及び
測定された前記電気特性に基づいて前記放射線検出器ヘッドと前記被験対象との間の距離を制御する工程;
を有する画像データ取得方法。 - 前記制御する工程は、前記移動させる工程及び前記取得する工程の全体を通して前記放射線検出器ヘッドと前記被験対象との間の距離を一定値に保つ、請求項8記載の画像データ取得方法。
- ロボティックコントローラは、前記移動の間、隣接した解剖学的範囲に依存して、前記放射線検出器ヘッドと前記被験対象との間の距離を変化させる、請求項8記載の画像データ取得方法。
- 前記制御する工程は、前記放射線検出器ヘッドと前記被験対象との間の距離を設定点距離に保つ、請求項8記載の画像データ取得方法。
- 前記制御する工程は、前記放射線検出器ヘッドの先端に配置されている容量性要素により測定される前記被験対象の近づきつつある部分を示す測定された電気特性に部分的に基づく、請求項8記載の画像データ取得方法。
- 放射線を検出するよう構成される放射線検知部分を有する放射線検知面と、
前記放射線検知部分に配置され、前記放射線検知面と被験対象との衝突とともに前記放射線検知面と前記被験対象との近さを検出するよう構成される、相隔たった平行な導電板を有する複数の容量性要素と、を有する可動式の放射線検出器ヘッド;及び
前記平行な導電板の間の間隔の機械的変形に応答して前記平行な導電板の間を流れる伝導性電流を検出するよう構成される衝突センサモニタ;
を有するガンマカメラであって、
前記放射線検知面は:
放射線コリメータ;及び
放射線が前記放射線コリメータを通過した後に該放射線を検出するよう配置される放射線検出器の配列;
を有し、
前記複数の容量性要素は相隔たった平行な導電板を有し、近接センサ及び衝突センサとして利用される、ことを特徴とするガンマカメラ。
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US86643906P | 2006-11-20 | 2006-11-20 | |
US60/866,439 | 2006-11-20 | ||
PCT/US2007/083082 WO2008063835A2 (en) | 2006-11-20 | 2007-10-31 | Detector head proximity sensing and collision avoidance apparatuses and methods |
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JP2010510490A JP2010510490A (ja) | 2010-04-02 |
JP5457834B2 true JP5457834B2 (ja) | 2014-04-02 |
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US (1) | US8269176B2 (ja) |
EP (1) | EP2087373B1 (ja) |
JP (1) | JP5457834B2 (ja) |
CN (2) | CN101627320A (ja) |
WO (1) | WO2008063835A2 (ja) |
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