A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/22 (2006.01) A61M 25/00 (2006.01) A61B 17/00 (2006.01) A61M 5/30 (2006.01) A61M 5/32 (2006.01)
Patent
CA 2396357
A device and method for delivering and injecting fluid into heart tissue utilizing laterally directed injection ports to increase injectate (fluid) retention in the heart tissue. The catheter includes a shaft having an infusion lumen extending therethrough, wherein the distal end of the shaft includes a penetrating member having one or more injection ports. The penetrating member penetrates the heart tissue in a first direction, and the injection port or ports direct fluid in a second direction different from the first direction. By injecting the fluid or fluid in a direction different than the penetration direction, fluid leakage from the injection site is reduced and a greater volume of tissue is treated for a single primary injection.
L'invention concerne un dispositif et un procédé permettant d'administrer et d'injecter un fluide dans un tissu cardiaque au moyen d'orifices d'injection latéraux de manière à augmenter la rétention de l'injectat (fluide) dans le tissu cardiaque. Le cathéter comprend une tige, une lumière de perfusion s'étendant dans cette tige. L'extrémité distale de la tige comprend un élément de pénétration comprenant un ou plusieurs orifices d'injection. L'élément de pénétration pénètre dans le tissu cardiaque dans un premier sens et les orifices d'injection dirigeant le fluide dans un second sens, différent du premier sens. En injectant les fluides dans un sens différent de celui de la pénétration, la fuite de fluide depuis le site d'injection est réduite et un volume plus important de tissu est traité par une seule première injection.
Palasis Maria
Rosenthal Arthur
Boston Scientific Limited
Mccarthy Tetrault Llp
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