AUTO-STOP VENT PLUG

摘要

An intravenous delivery system may have a liquid source containing a liquid, tubing, and a vent cap. The tubing may be connected to the liquid source and the vent cap to convey liquid from the liquid source to the vent cap. The vent cap may have a vent that is substantially impermeable to the liquid and permeable to air, and therefore releases air from the liquid from the vent cap. The vent cap may also have a chamber in communication with the vent. The chamber may have a volume selected to enable the chamber to receive a quantity of liquid from the tubing in which the air, if entrained in the liquid, is likely to reside after the tubing has been primed with the liquid.

主权项

1. An intravenous delivery system comprising:
a liquid source containing a liquid; tubing comprising:
a first end connectable to the liquid source to receive the liquid from the liquid source; anda second end; and a vent cap comprising:
a proximal end connectable to the second end of the tubing to receive the liquid from the tubing;a distal end comprising a vent that is substantially impermeable to the liquid and substantially permeable to air; anda chamber wall that defines a chamber that receives the liquid from the proximal end, wherein the chamber is in communication with the vent to facilitate passage of air from the liquid out of the vent cap through the vent, wherein the chamber comprises a volume selected to enable the chamber to receive a quantity of the liquid from the tubing in which the air, if entrained in the liquid, is likely to reside after the tubing has been primed sufficiently to advance the liquid through the second end of the tubing.