초록 ▼

A device and method for delivering and injecting fluid into heart tissue utilizing high pressure injection to increase injectate (fluid) retention in the heart tissue. The catheter includes a shaft having an infusion lumen extending therethrough, wherein the proximal end of the shaft connected to a

A device and method for delivering and injecting fluid into heart tissue utilizing high pressure injection to increase injectate (fluid) retention in the heart tissue. The catheter includes a shaft having an infusion lumen extending therethrough, wherein the proximal end of the shaft connected to a pressurized fluid source capable of generating a transient pressure of more than 1000 psi. The distal end of the shaft includes a nozzle having an injection port in fluid communication with the infusion lumen such that fluid from the pressurized fluid source may be delivered to the heart tissue at a sufficiently high exit velocity to partially penetrate the heart tissue.

대표청구항 ▼

1. A catheter system for delivering a fluid to heart tissue, comprising:a pressurized fluid source containing a fluid therein, the pressurized fluid source generating a high transient pressure sufficient to pierce bodily tissue; and an injection catheter including an elongate shaft having a proximal

1. A catheter system for delivering a fluid to heart tissue, comprising:a pressurized fluid source containing a fluid therein, the pressurized fluid source generating a high transient pressure sufficient to pierce bodily tissue; and an injection catheter including an elongate shaft having a proximal end, a distal end and an infusion lumen extending therein, the proximal end of the shaft connected to the pressurized fluid source, the infusion lumen in fluid communication with the fluid contained in the pressurized fluid source, the distal end of the shaft including a nozzle having an injection port in fluid communication with the infusion lumen such that fluid from the pressurized fluid source may be delivered to the heart tissue via the infusion lumen of the shaft and the injection port at a sufficient exit velocity to partially penetrate the heart tissue.