System for hypothermic transport of samples
View Patent ↗A system for the hypothermic transport of biological samples, such as tissues, organs, or body fluids. The system includes a self-purging preservation apparatus to suspend the sample in preservation fluid, and perfuse a tissue with preservation fluid. The self-purging preservation apparatus is placed in an insulated transport container having a cooling medium. When assembled, the system allows for transport of biological samples for extended periods of time at a stable temperature, while self-purging trapped gases.
1. A system for hypothermic transport of a biological sample, comprising:
a self-purging preservation apparatus comprising an organ chamber and a lid assembly configured to seal against the organ chamber,
the lid assembly comprising pumping chamber, a fill port, a valve, and a purge port,
the pumping chamber comprising a semi-permeable membrane that is disposed in the lid assembly at an inclined angle with respect to a horizontal axis and capable of exerting a force against a preservation fluid contacting a first side of the semi-permeable membrane when a pressure is applied against a second side of the semi-permeable membrane,
the fill port coupled to a first lumen and providing a direct fluidic path between the organ chamber and an exterior of the system,
the valve providing a fluidic path between a highest point of the organ chamber and the first side of the semi-permeable membrane, and
the purge port providing a fluidic path from a highest point of the first side of the semi-permeable membrane to an exterior of the apparatus,
wherein the apparatus is adapted to expel a rising fluid from the apparatus via the purge port when the organ chamber is sealed to the lid assembly and filled with liquid via the fill port; and
an insulated transport container for receiving the self-purging preservation apparatus and cooling media.
2. The system of claim 1 , wherein the self-purging preservation apparatus comprises a temperature sensor.
3. The system of claim 1 , further comprising an oxygen source operably coupled to the self-purging preservation apparatus.
4. The system of claim 3 , wherein the oxygen source is a compressed gas cylinder.
5. The system of claim 1 , wherein the cooling media comprises eutectic cooling packs.
6. The system of claim 1 , wherein the biological sample comprises tissues or organs.
7. The system of claim 1 , wherein the biological sample is a container holding body fluids.
8. The system of claim 2 , wherein the system comprises a temperature display.
9. The system of claim 8 , wherein the temperature display communicates with the temperature sensor wirelessly.
10. The system of claim 1 , wherein the self-purging preservation apparatus additionally comprises a pressure sensor.
11. The system of claim 10 , wherein the system comprises a pressure display.
12. The system of claim 1 , wherein the self-purging preservation apparatus additionally comprises an oxygen sensor capable of measuring a partial pressure of oxygen in a fluid within the self-purging preservation apparatus.
13. The system of claim 12 , wherein the system comprises an oxygen display.
14. The system of claim 1 , wherein the inclined angle is 1°-10° with respect to the horizontal axis.
15. The system of claim 1 , wherein the valve is a check valve.
16. The system of claim 1 , further comprising an organ adapter comprising a second lumen, coupled to the lid assembly, and in fluid communication with the first side of the semi-permeable membrane.
17. The system of claim 16 , wherein when an organ is coupled to the organ adapter coupled to the lid assembly, and a fluid is delivered to the fill port, the fluid can pass from the fill port to the organ chamber without passing through the organ.
18. The system of claim 1 , further comprising a pneumatic control system in fluid communication with the second side of the semi-permeable membrane.
19. The system of claim 18 , further comprising a supply line configured to deliver a compressed gas to the pneumatic control system, thereby allowing the pneumatic control system to deliver a compressed gas to the second side of the semi-permeable membrane.
20. The system of claim 18 , further comprising a vent line configured to allow the pneumatic control system to release a vent gas from the second side of the semi-permeable membrane.
21. The system of claim 1 , wherein the first lumen does not contact or traverse the semi-permeable membrane.