Multifunction intraluminal ultrasound catheter having a removabl

Details Multifunction intraluminal ultrasound catheter having a removabl Multifunction intraluminal ultrasound catheter having a removabl

1997-07-02

1998-12-01

Lateef, Marvin M.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

600468, A61B 800

Patent

active

058429948

ABSTRACT:
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.

REFERENCES:
patent: 5190045 (1993-03-01), Frazin
patent: 5219335 (1993-06-01), Willard et al.
patent: 5240003 (1993-08-01), Lancee et al.
patent: 5240437 (1993-08-01), Christain
patent: 5435314 (1995-07-01), Dias
patent: 5454373 (1995-10-01), Koger et al.
patent: 5485854 (1996-01-01), Verdonk et al.

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