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In Vitro Effectiveness Study of Three Hydrodynamic Thrombectomy Devices1

Stefan Müller-Hülsbeck, MD, Christopher Bangard, MD, Helmut Schwarzenberg, MD, Claus C. Glüer, PhD and Martin Heller, MD

1 From the Department of Radiology, University Hospital, Arnold-Heller-Strasse 9, 24105 Kiel, Germany. Received August 5, 1997; revision requested November 13; final revision received September 28, 1998; accepted December 11. Address reprint requests to S.M.H.



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  		Figure 1a. Magnification of the (a) 5-F tip of the AJ, (b) 7-F tip of the HL, and (c) 8-F tip of the SET catheter. Arrowheads indicate the exhaust lumina. The arrow in c indicates the separate guide-wire lumen of the SET catheter.

 


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  		Figure 1c. Magnification of the (a) 5-F tip of the AJ, (b) 7-F tip of the HL, and (c) 8-F tip of the SET catheter. Arrowheads indicate the exhaust lumina. The arrow in c indicates the separate guide-wire lumen of the SET catheter.

 


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  		Figure 1b. Magnification of the (a) 5-F tip of the AJ, (b) 7-F tip of the HL, and (c) 8-F tip of the SET catheter. Arrowheads indicate the exhaust lumina. The arrow in c indicates the separate guide-wire lumen of the SET catheter.

 


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  		Figure 2. Schematic of the flow model for in vitro testing of the hydrodynamic thrombectomy catheters. The devices were introduced via a 9-F sheath (SH). Thin arrows indicate the flow direction, thick arrows mark the positions of pressure measurement (1) and the severe 87% stenosis (S).

 




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