Bubble free - self primed IV set
AssigneeBecton, Dickinson and Company
InventorTom Miner
Life of this patent
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Abstract
A bubble free, self-priming IV set for use in the administration of liquids that includes a drip chamber comprising a chamber inlet and a chamber outlet, a bubble isolation device disposed within the drip chamber that prevents air bubbles from exiting the chamber outlet, a tube having an inlet end coupled to the chamber outlet of the drip chamber and an outlet end, and an end plug that includes an air vent. The end plug may be coupled to the outlet end of the tube and is a flow restrictor so that when a liquid is moving through the tube, the velocity of the liquid flow is controlled such that the front of the liquid does not trap bubbles in the tube.
Claims30
An IV set for use in the administration of liquid, the IV set comprising:
- a drip chamber comprising a chamber inlet and a chamber outlet;
- a bubble isolation device disposed within the drip chamber that substantially prevents air bubbles from exiting the chamber outlet;
- a tube having an inlet end and an outlet end, wherein the inlet end of the tube is coupled to the chamber outlet of the drip chamber;
- and
- an end plug comprising an air vent, wherein the end plug is coupled to the outlet end of the tube, wherein the end plug comprises a flow restrictor so that when a liquid moves through the tube during priming of the IV set, the velocity of the liquid flow is controlled.
An IV set for use in the administration of liquid, the IV set comprising:
- a drip chamber comprising a chamber inlet and a chamber outlet;
- a means for preventing bubbles from exiting the chamber outlet;
- a tube having an inlet end and an outlet end, wherein the inlet end of the tube is coupled to the chamber outlet of the drip chamber;
- and
- a means for venting air from the tube, wherein the venting means restricts the flow of air venting from the tube so that when a liquid moves through the tube during priming of the IV set, the velocity of the liquid flow is controlled.
A method for priming an IV set for use in the administration of liquid, the method comprising:
- coupling a chamber inlet of a drip chamber to a source of the liquid;
- wetting a bubble isolation device with liquid, wherein the bubble isolation device is disposed within the drip chamber;
- substantially preventing air bubbles from reaching a chamber outlet of the drip chamber;
- opening a clamp to permit liquid to flow from the chamber outlet of the drip chamber through a tube having an inlet end coupled to the chamber outlet;
- restricting the venting of air from an end plug coupled to an outlet end of the tube as liquid flows through the tube so that the front of the liquid flow through the tube does not create bubbles;
- and
- preventing the liquid from exiting the outlet end of the tube with an air vent of the end plug.
Dependencies are inferred from the claim text.