| 摘要 |
Featured is a system for delivering a fluid or therapeutic agent to target tissue of an organ, such as a heart. Such a delivery system includes a catheter having a distal end portion, a proximal end portion and a lumen extending therebetween and a delivery device movably disposed within the catheter at the distal end portion thereof, the delivery device having a first end portion that is configured and arranged for penetrating the target tissue. The distal end portion of the catheter is also configured and arranged such that when the delivery device is extended beyond the distal end portion of the catheter, a portion of the delivery device that is disposed within the distal end portion of the catheter is put into fluid communication with the lumen, whereby fluid or therapeutic agent being communicated via the lumen is fluidly coupled to the first end portion of the delivery device and thence for delivery to the target tissue.
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