Apparatus and methods for making, storing, and administering freeze-dried materials such as freeze-dried plasma
View Patent ↗A freeze-dried material is stored in a first chamber of a container along with a reconstituting liquid for the freeze-dried material, which is stored in a second chamber of the container. A sealing wall within the container forms a barrier between the first chamber and the second chamber preventing contact between the freeze-dried material and the reconstituting liquid. At least one valve assembly in the sealing wall selectively opens a region of the sealing wall to establish fluid flow communication between the first and second chambers, allowing the freeze dried material to be reconstituted. The reconstituted freeze-dried material can be administered from the same container to a recipient.
1. Apparatus comprising:
a dry freeze-dried material,
a reconstituting liquid for the freeze-dried material, and
a flexible container including first chamber sized and configured to hold the freeze-dried material in a dry state, a second chamber sized and configured to hold the reconstituting liquid in a wet state, a sealing wall within the flexible container sized and configured to form a barrier between the first chamber and the second chamber preventing contact between the freeze-dried material and the reconstituting liquid, and at least one valve assembly in the sealing wall operative to open a region of the sealing wall to establish fluid flow communication between the first and second chambers,
wherein the valve assembly includes a normally closed septum operative in a normally closed condition maintaining closure between the first and second chambers and an opened condition establishing fluid flow communication between the first and second chambers in response to at least a partially tearing of the septum,
wherein the septum includes a tear member coupled to a pulling member to at least partially tear the septum.
2. Apparatus according to claim 1
further including an outer skirt overlaying an exterior wall of the container in a region of the sealing wall.
3. Apparatus according to claim 2
wherein the outer skirt includes a tear member coupled to a pulling member to tear the outer skirt for removal.
4. Apparatus according to claim 2
wherein the flexible container includes an integral administration port for administering material from the container.
5. Apparatus according to claim 1
wherein the freeze-dried material includes freeze-dried human plasma.
6. Apparatus comprising:
a dry freeze-dried material,
a reconstituting liquid for the freeze-dried material, and
a flexible container including first chamber sized and configured to hold the freeze-dried material in a dry state, a second chamber sized and configured to hold the reconstituting liquid in a wet state, a sealing wall within the flexible container sized and configured to form a barrier between the first chamber and the second chamber preventing contact between the freeze-dried material and the reconstituting liquid, and at least one valve assembly in the sealing wall operative to open a region of the sealing wall to establish fluid flow communication between the first and second chambers,
wherein the valve assembly includes a normally closed septum operative in a normally closed condition maintaining closure between the first and second chambers and an opened condition establishing fluid flow communication between the first and second chambers in response to at least a partially tearing of the septum,
wherein the valve assembly includes a pressure sensitive valve operative between a normally closed condition normally resisting fluid flow communication between the first and second chambers and an opened condition establishing fluid flow condition communication between the first and second chambers in response to a pressure differential applied across the valve, and a normally closed septum associated with the valve operative in a normally closed condition maintaining closure between the first and second chambers independent of the valve and an opened condition establishing fluid flow communication between the first and second chambers in response to at least a partially tearing of the septum and a pressure differential applied across the valve.
7. Apparatus according to claim 6 wherein the pressure sensitive valve comprises a flap valve.
8. Apparatus according to claim 6 wherein the septum includes a tear member coupled to a pulling member to at least partially tear the septum.
9. Apparatus comprising:
a dry freeze-dried material,
a reconstituting liquid for the freeze-dried material, and
a flexible container including first chamber sized and configured to hold the freeze-dried material in a dry state, a second chamber sized and configured to hold the reconstituting liquid in a wet state, a sealing wall within the flexible container sized and configured to form a barrier between the first chamber and the second chamber preventing contact between the freeze-dried material and the reconstituting liquid, and at least one valve assembly in the sealing wall operative to open a region of the sealing wall to establish fluid flow communication between the first and second chambers,
wherein the valve assembly includes a normally closed septum operative in a normally closed condition maintaining closure between the first and second chambers and an opened condition establishing fluid flow communication between the first and second chambers in response to at least a partially tearing of the septum,
further including an outer skirt overlaying an exterior wall of the container in a region of the sealing wall,
wherein at least a portion of the exterior wall of the container overlaid by the outer skirt includes placations.