Apparatus for selectively establishing a needleless injection port on IV tubing, and associated methods

摘要

Apparatus enables one or more needleless injection ports to be established on IV tubing as needed. An IV tubing-engaging portion secures the apparatus about the tubing. A puncturing member establishes fluid communication between the IV line and a sealing member on the apparatus. Connecting a syringe to the sealing member establishes fluid communication between the IV line and the syringe, enabling an injection to be made. When the syringe is withdrawn, the sealing member reseals to prevent fluid leakage from the IV line.

主权项

1. Apparatus configured to be secured to intravenous (IV) tubing to establish a needleless injection/aspiration port on the IV tubing, the apparatus comprising:
an IV tubing-engaging portion having an internal surface configured to snugly engage an external surface of the IV tubing; a tubular branch portion extending from the IV tubing-engaging portion, the branch portion including a lumen; a first elastomeric sealing member located at a junction of the IV tubing-engaging portion and the branch portion, the sealing member fluidly isolating the lumen of the branch portion from an interior of the IV tubing-engaging portion; a compressible piston portion engaging the branch portion, a central shaft of the piston portion disposed at least partially within the lumen of the branch portion, the central shaft including a lumen; a puncturing member extending distally from the central shaft and including a lumen and a pointed distal tip; a valve member engaging a proximal end of the piston portion, the piston portion including a second elastomeric sealing member that provides selective sealing of a proximal end of the piston portion; a stabilizer extending proximally from an exterior surface of the IV tubing-engaging portion, the stabilizer engaging an exterior of the piston portion to support the piston portion during rotation relative to the branch portion; and wherein relative translation of the piston portion with respect to the branch portion in a first direction drives the pointed tip of the puncturing member through the first elastomeric sealing member and through a sidewall of the IV tubing to establish fluid communication between an interior of the IV tubing and the lumen in the puncturing member.