Device for sample collection
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 bodily fluid sample collection device for the collection of naturally expressed bodily fluids, the device comprising:
a cap comprising:
an outer wall having an engagement member,
an interior chamber for holding a fluid, the chamber comprising an inner wall defining an interior space and an aperture;
a threadedly removable blocking member attached to and configured for sealing the aperture, wherein:
the blocking member includes a first coupling member for engaging a corresponding second coupling member in a tube when coupled thereto,
and
upon the action of coupling the cap to the tube, the blocking member is threadedly removed from the aperture;
and
the tube, comprising:
a containment wall defining a reservoir for bodily fluid sample collection, an engagement member complementary to the engagement member of the cap, and the second coupling member.
2. The sample collection device according to claim 1 , wherein the removable blocking member is a disk-shaped member which threadably engages the aperture.
3. The sample collection device according to claim 2 , wherein the first coupling member comprises an indentation disposed centrally in the bottom of the blocking member and the second coupling member is disposed centrally within the tube.
4. The sample collection device according to claim 2 , wherein the first coupling member comprises a recess disposed eccentrically in the bottom of the blocking member and the second coupling member is disposed eccentrically within the tube.
5. The sample collection device according to claim 1 , wherein the device further comprises a locking mechanism.
6. The sample collection device according to claim 5 , wherein the locking mechanism comprises a wedge and a complementary flange.
7. The sample collection device according to claim 1 , wherein the device further comprises a sealing mechanism.
8. The sample collection device according to claim 7 , wherein the sealing mechanism comprises a sealing substance associated with the engagement member of the cap, wherein upon coupling the cap to the tube, the sealing substance flows into at least the engagement member of the cap.
9. The sample collection device according to claim 1 , further comprising tamper-evident means for determining whether the cap has been opened.
10. The sample collection device according to claim 9 , wherein the tamper-evident means comprises a ring having a first portion thereof integral with an open end of the cap, wherein upon the cap being coupled to the tube, the ring is positioned adjacent the tube.
11. The sample collection device according to claim 10 , wherein upon the cap being de-coupled from the tube, the first portion is broken and the ring remains substantially adjacent the tube.
12. The sample collection device according to claim 1 , wherein the fluid comprises a solution for preserving cells.
13. The sample collection device according to claim 1 , wherein the inner wall of the interior chamber is threaded for corresponding engagement with the threadedly removable blocking member.
14. The sample collection device according to claim 1 , wherein the aperture of the interior chamber is threaded for corresponding engagement with the threadedly removable blocking member.