作者: Richard T. Choh , Stephen J. Forcucci , Robert Cafferata , Richard A. Gambale
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摘要: The present invention provides a transthoracic drug delivery device (10) that utilizes pressure to determine the precise location of distal tip (18) tube (14) insure therapeutic substances are ejected into myocardium (4) and not dissipated in unintended tissue locations. In one embodiment comprises sensing (12) mounted parallel wherein tubes staggered so extends beyond (14). another embodiment, steerable syringe is provided multiple sites can be treated with substance only penetration heart. Once (28) penetrates left ventricle, its (32) deflected back toward endocardial surface (6) withdrawn proximally cause (4). deflectable adjusted different deflection angle rotated make available circular array points may accessed by syringe.