Perfusion device and method
View Patent ↗A perfusion device and method is provided in various examples. In an example, the device includes a container having a first internal chamber configured to hold the material; a port for introducing the liquid into the chamber; a vent for releasing gas and liquid from the chamber; and a flow control device for sealing the vent to allow a vacuum to be drawn on the first chamber. In an example, the container includes a syringe that defines the internal material chamber and includes an end cap and a plunger. The vent may be formed by a venting passageway in the plunger and/or the cap. In various examples, the vacuum may be created by a medical syringe coupled to the container. In some examples, the medical syringe may also be used to deliver the liquid into the container.
1. A device for perfusing a material with a liquid comprising:
a container including:
an internal chamber configured to hold the material; and
a port disposed at a distal end of the container configured to introduce a liquid from outside of the device into the internal chamber; and
a plunger movable within the internal chamber, the plunger including:
at least two venting passageways proximate a distal end of the plunger configured to release gas from the internal chamber;
a transverse vent opening in fluid communication with of each of the at least two venting passageways; and
a flow control device disposed within the transverse vent opening configured to inhibit the liquid from being released from the internal chamber when the liquid and the material are in the internal chamber.
2. The device of claim 1 , wherein each of the at least two venting passageways are in fluid communication with the internal chamber.
3. The device of claim 1 , wherein the flow control device includes a hydrophobic filter.
4. The device of claim 1 , wherein the flow control device is configured and dimensioned to prevent the flow of liquid from the container and permit the flow of gas from the container.
5. The device of claim 1 , wherein the plunger includes, proximate the distal end of the plunger, a sealing plate that is sized and configured to provide a generally leak-proof, yet slidable seal between the plunger and the container.
6. The device of claim 1 , wherein the port comprises a cap threadably connected to the container, the cap further comprising a nipple configured with a fitting to receive a complementary fitting of a syringe.
7. The device of claim 1 , wherein the plunger further includes, at the distal end of the plunger, an aperture that is aligned with one of the at least two venting passageways and wherein the flow control device is positioned between the aperture and a proximal end of the plunger whereby gas migrating through the aperture and into the one of the at least two venting passageways passes the flow control device before being released to the atmosphere.
8. The device of claim 1 , wherein the plunger further comprises a distal plate wherein the at least two venting passageways extend axially from an outer face of the distal plate along a central axis of the plunger to the flow control device.
9. The device of claim 1 , wherein the at least two vents are positioned on diametrically opposite sides of the plunger relative to a central axis of the plunger.