Patent ID: 9402974
Filing Date: 2016-08-02
CPC Classification: A61M

Claim Text:
1. A primable catheter assembly for use in targeted drug delivery applications, the assembly comprising: a catheter having a lumen, a base end, a tip end, an inner diameter, and an outer diameter, a portion of the outer diameter having a first chamfered surface corresponding to the tip end of the catheter, and the inner diameter having a narrowed portion also corresponding to the tip end of the catheter; and a trocar slidably positioned within the catheter and including a shaft having a first end, a second end, and an outer diameter, the trocar further including a tip that extends from the first end of the shaft, the shaft having a length that causes the tip to extend beyond the tip end of the catheter and the second end to extend beyond the base end of the catheter, the outer diameter of the shaft being smaller than the narrowed portion of the inner diameter of the catheter such that a primable gap exists between an outer surface of the shaft and an inner surface of the catheter while the tip of the trocar extends beyond the tip end of the catheter; the catheter including an interface for coupling a fluid source to the catheter while the trocar is positioned within the catheter, the interface being in fluid communication with the primable gap such that priming fluid provided by the fluid source flows through the primable gap and out through the tip end of the catheter when the trocar is positioned within the catheter with the tip of the trocar extending beyond the tip end of the catheter.