专利名称：Angiographic catheter with balanced dye
injection openings
发明人：Raymond O. Bodicky,Ronald Crouther,LeRoy
S. Forney,Andrew Serowski
申请号：US07/204497申请日：19880609公开号：US04961731A公开日：19901009
摘要：An improved non-whip angiographic catheter has a preselected number ofopenings of preselected size, location and orientation along the straight portion of thecatheter near the distal tip so as to distribute the force of the high-pressure dye injectionjets while maintaining the non-whip characteristic. At least one opening in the catheterlong portion is provided facing the open end of the tip portion so that the dyetrajectories from the catheter tip opening and the catheter long portion opening aregenerally coplanar and perpendicular so as to interfere with each other for improved dyedispersion. At least two reaction openings of predetermined size are provided on theopposite side of the catheter long portion at preselected locations, the dye trajectoriesof these three reaction openings also being generally coplanar with the trajectories ofthe first opening and the open end of the catheter tip. The special openings havesufficiently small diameters and are specially staggered so as to reduce the possibility ofkinking the catheter during placement of the catheter into position for diagnosticangiography.
申请人：SHERWOOD MEDICAL COMPANY
代理人：Andrew J. Beck,Montgomery W. Smith,Richard D. Allison
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