UNIVERSAL PIERCING PIN

摘要

UNIVERSAL PIERCING PIN A universal piercing pin for vented and unvented I.V. administration sets has a hollow spike member with fluid passages spaced apart around the external surface of the spike member. In vented sets, the tip of the spike member and an entry port to a fluid passage are inserted sufficiently through the seal of a rigid solution container to allow fluid to pass out of the container through the spike member and air to pass into the container through the fluid passage. A hydrophobic filter, positioned in a fluid passage, prevents the passage of liquid but allows the passage of air into the container. In unvented sets, only a portion of the spike member is inserted through the seal of a flexible I.V. container which allows fluid to pass out of the flexible container through the spike member without allowing air to flow into the flexible container through the fluid passages.