发明名称 Multifunction intraluminal ultrasound catheter having a removable core with maximized transducer aperture
摘要 A multi-function intraluminal ultrasound catheter assembly includes an axially disposed lumen having at least a first portion with a flat inner wall forming a "D-shaped" cross-section. An acoustic imaging window having a circular cross-section is connected to a distal end of the catheter assembly, wherein the cross-sectional dimension of the D-shaped portion of the lumen that extends from the flat inner wall is less that the available inner diameter of the imaging window. A flexible drive-shaft extends through the lumen and is connected to a transducer housing disposed in the acoustic imaging window area, the transducer housing having a substantially "D-shaped" outer perimeter, wherein the drive-shaft and connected transducer housing may thereby be retracted from the catheter assembly by first rotating the transducer housing until its D-shaped outer perimeter is substantially oriented with the D-shaped cross-section of the lumen. In a preferred embodiment, the transducer housing also includes a longitudinally disposed transducer mounting section configured such that the active surface of a transducer mounted therein is generally aligned across the maximal inner diameter of the acoustic imaging window.
申请公布号 US5842994(A) 申请公布日期 1998.12.01
申请号 US19970886882 申请日期 1997.07.02
申请人 BOSTON SCIENTIFIC TECHNOLOGY, INC. 发明人 TENHOFF, HARM;OSTROVSKY, ISAAC;KOGER, JAMES D.
分类号 A61B8/12;(IPC1-7):A61B8/00 主分类号 A61B8/12
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