Biological collection system
The disclosure relates to devices, solutions and methods for collecting and processing samples of bodily fluids containing cells (as well as embodiments for the collection, and processing and/or analysis of other fluids including toxic and/or hazardous substances/fluids). In addition, the disclosure relates generally to function genomic studies and to the isolation and preservation of cells from saliva and other bodily fluids (e.g., urine), for cellular analysis. With respect to devices for collection of bodily fluids, some embodiments include two mating bodies, a cap and a tube (for example), where, in some embodiments, the cap includes a closed interior space for holding a sample preservative solution and mates with the tube to constitute the (closed) sample collection device. Upon mating, the preservation solution flows into the closed interior space to preserve cells in the bodily fluid. The tube is configured to receive a donor sample of bodily fluid (e.g., saliva, urine), which can then be subjected to processing to extract a plurality of cells. The plurality of cells can be further processed to isolate one and/or another cell type therefrom. The plurality of cells, as well as the isolated cell type(s), can be analyzed for functional genomic and epigenetic studies, as well as biomarker discovery.
1. A biological sample collection system, the system comprising:
a sample collection vessel comprising
a sample collection reservoir,
a first connection member, and
a first aperture for receiving a biological sample;
a cap comprising
a second aperture,
a reagent chamber storing a reagent therein, and
a second connection member complementary to the first connection member; and
a moveable annular valve in the second aperture, the movable annular valve
comprising
a vent,
a first cylinder comprising a third aperture,
a second cylinder comprising the vent, the second cylinder positioned in the third aperture,
a closed configuration, and
an open configuration, wherein
in the annular valve's closed configuration, the first and second cylinders create a fluid-tight seal with the cap and the first cylinder obstructs the vent to retain the reagent in the reagent chamber,
the first cylinder and second cylinder are relatively moveable to thereby change the annular valve from the closed configuration to the open configuration, and
in the annular valve's open configuration, the first cylinder does not obstruct the vent to thereby allow flow of the reagent from the reagent chamber, through the vent, and into the sample collection reservoir.
2. The biological sample collection system of claim 1 , wherein the second cylinder comprises a sidewall and the sidewall comprises the vent, wherein the annular valve's closed configuration comprises a sidewall of the first cylinder obstructing the vent and the annular valve's open configuration comprises the sidewall of the first cylinder not obstructing the vent.
3. The biological sample collection system of claim 1 , wherein the first and second cylinder's relative movement, from the annular valve's closed configuration to the open configuration, is translational along a longitudinal axis of the cap.
4. The biological sample collection system of claim 1 , wherein the first and second cylinder's relative movement, from the annular valve's closed configuration to the open configuration, comprises the second cylinder moving in the third aperture.
5. The biological sample collection system of claim 1 , wherein the first cylinder comprises a press-fit connection with the cap.
6. The biological sample collection system of claim 1 , wherein the second cylinder comprises a plurality of vents and the first cylinder obstructs the plurality of vents in the annular valve's closed configuration.
7. The biological sample collection system of claim 1 , wherein the first cylinder of the annular valve comprises a flange and the annular valve with flange comprises a width larger than a width of the first aperture.
8. The biological sample collection system of claim 7 , wherein interaction between the flange and a wall of the sample collection vessel causes the first and second cylinders to move relatively and change the annular valve from the closed configuration to the open configuration.
9. The biological sample collection system of claim 1 , further comprising a funnel attachable to the sample collection vessel.
10. The biological sample collection system of claim 1 , wherein the vent is at least partially unobstructed in the annular valve's open configuration.
11. The biological sample collection system of claim 1 , wherein the vent is fully unobstructed in the annular valve's open configuration.
12. The biological sample collection system of claim 1 , wherein the first and second cylinders comprise generally constant exterior diameters.
13. The biological sample collection system of claim 12 , wherein the annular valve comprises a flange extending from at least one of the first and second cylinders.
14. The biological sample collection system of claim 1 , wherein the first and second connection members comprise a threaded connection.
15. The biological sample collection system of claim 1 , wherein the annular valve comprises a sliding connection between the first and second cylinders.
16. The biological sample collection system of claim 1 , wherein the sample collection system comprises a separable two-piece sample collection system, the sample collection vessel comprising a first piece of the separable two-piece sample collection system, and the cap with movable annular valve comprising a second piece of the separable two-piece sample collection system.
17. The biological sample collection system of claim 1 , wherein the first cylinder comprises threads on an interior sidewall configured to mate with threads on an exterior sidewall of the second cylinder.
18. The biological sample collection system of claim 1 , wherein a diameter of an inner wall of the first cylinder is sufficiently equal to a diameter of an outer wall of the second cylinder to create a fluid-tight connection therebetween and allow relative movement.
19. The biological sample collection system of claim 1 , wherein the system is configured such that connecting the cap to the sample collection vessel causes the annular valve to move from the closed configuration to the open configuration.
20. The biological sample collection system of claim 1 , wherein
the system is configured such that connecting the cap to the sample collection vessel causes the annular valve to move from the closed configuration to the open configuration, wherein
the second cylinder comprises a sidewall and the sidewall comprises the vent, wherein
the annular valve's closed configuration comprises a sidewall of the first cylinder obstructing the vent and the annular valve's open configuration comprises the sidewall of the first cylinder not obstructing the vent, and wherein
the first and second cylinder's relative movement, from the annular valve's closed configuration to the open configuration, is translational along a longitudinal axis of the cap.