IMAGING SYSTEM

To reduce undesired rotational variances of a rotatable optical core of an imaging probe while avoiding excessive loads on the rotatable optical core.SOLUTION: An imaging system for a patient comprises an imaging probe. The imaging probe comprises: an elongate shaft for insertion into the patient an...

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Bibliographische Detailangaben
Hauptverfasser: MICHAEL ATLAS, PERTERSEN CHRISTOPHER L, J CHRISTOPHER FLAHERTY, DAVID KOLSTAD, CHRISTOPHER PETROFF, NAREAK DOUK
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To reduce undesired rotational variances of a rotatable optical core of an imaging probe while avoiding excessive loads on the rotatable optical core.SOLUTION: An imaging system for a patient comprises an imaging probe. The imaging probe comprises: an elongate shaft for insertion into the patient and comprising a proximal end, a distal portion, and a lumen extending between the proximal end and the distal portion; a rotatable optical core comprising a proximal end and a distal end, the rotatable optical core configured to optically and mechanically connect with an interface unit; a probe connector positioned on the elongate shaft proximal end and surrounding at least a portion of the rotatable optical core; and an optical assembly which is positioned in the elongate shaft distal portion, proximate to the rotatable optical core distal end, and configured to direct light to tissue and collect reflected light from the tissue. A shear-thinning viscous fluid can be provided between the elongate shaft and the rotatable optical core, e.g., to reduce undesired rotational variances of the rotatable optical core.SELECTED DRAWING: Figure 1 【課題】撮像プローブの回転式光学コアに過度の負荷が掛かるのを回避し、望ましくない回転変動を低減する。【解決手段】患者用の撮像システムは、撮像プローブを備えている。撮像プローブは、近位端、遠位部、および、近位端と遠位部との間に延びるルーメンを含み、患者の体内に挿入される細長いシャフトと、近位端および遠位端を有し、インタフェースユニットに対する光学的かつ機械的な接続を行うように構成された回転式光学コアと、細長いシャフトの近位端の上に配置され、回転式光学コアの少なくとも一部を取り囲むプローブコネクタと、細長いシャフトの遠位部の中に配置され、回転式光学コアの遠位端に近接し、光を組織に指向させかつ該組織からの反射光を集光するように構成された光学アセンブリとを含んでいる。細長いシャフトと回転式光学コアとの間には、例えば回転式光学コアの不要な回転変動を低減するために、剪断減粘性流体が配置されてよい。【選択図】図1