Ergonomic stool specimen container and enclosing holder systems, methods, and kits
Provided herein is technology relating to collecting and containing samples and particularly, but not exclusively, to technology for collecting and containing a stool specimen. The technology provides a device for collecting and containing a stool specimen, the device comprising ergonomic features optimized for a geriatric user. The technology also provides an enclosing holder for securing the ergonomic stool specimen container in a leak-proof manner e.g., during mechanical shaking.
1. A kit for collecting a stool specimen during use of a toilet or commode, and for containing the collected stool specimen, the kit comprising:
a) a stool specimen collecting device having an internal volume of at least 300 ml and comprising a sample container comprising:
a) a bucket mountable on or under a seat of a commode or toilet, the bucket comprising:
i) a bucket bottom wall joined around a circumference to a bottom edge of a bucket side wall, a top edge of the bucket side wall circumferentially defining a top opening of the bucket having an internal diameter, and the bottom edge and top edge of the bucket side wall defining a bucket height and a vertical direction therebetween,
wherein an interior surface of the bucket side wall defines an interior circumferential surface and an exterior surface of the bucket side wall defines an exterior circumferential surface, and
wherein the bucket bottom wall comprises an interior surface disposed toward the top opening of the bucket;
ii) a plurality of ridges on the exterior circumferential surface and having a length in the vertical direction, the plurality of ridges distributed radially with respect to a bucket central axis and defining grooves between adjacent ridges; and
iii) a first threaded engagement portion; and
b) a lid having a lid central axis, the lid comprising:
i) a lid top wall joined around a circumference to a top edge of a lid side wall, a bottom edge of the lid side wall defining a bottom opening of the lid,
the lid top wall comprising an interior surface disposed to the bottom opening of the lid, and an exterior surface comprising at least one raised gripping feature;
ii) a mated threaded engagement portion removably engageable with the first threaded engagement portion of the bucket; and
iii) a sealing plate movably retained in the lid, the sealing plate having a top surface disposed to the interior surface of the lid top wall, a bottom surface disposed toward the bottom opening of the lid, and a central axis collinear with the lid central axis, wherein the sealing plate completely covers the interior surface of the lid top wall and is rotatable with respect to the lid around the sealing plate central axis,
wherein, when threads of the first threaded engagement portion and the mated threaded engagement portion are engaged with each other, the bucket central axis and the lid central axis are collinear, and the sealing plate seals a junction between the lid and the bucket to form a sealed sample container;
and
b) one or more of:
a bracket for mounting the bucket on or under a seat of a commode or toilet to receive a stool sample deposited by a subject during use of the commode or toilet;
a buffer solution; or
a stool sampling device.
2. The kit of claim 1 , further comprising an instruction for use.
3. The kit of claim 1 , further comprising storage, shipping, or protective packaging configured to enclose a sealed sample container.
4. The kit of claim 1 , wherein the buffer solution comprises a salt and a preservative or a stabilizing agent.
5. The kit of claim 4 , wherein the stabilizing agent comprises a nucleic acid stabilizing agent.
6. The kit of claim 1 , wherein the stool specimen collecting device has an internal volume between 300 and 1400 ml.
7. The kit of claim 1 , wherein the first threaded engagement portion and the mated threaded engagement portion have threads dimensioned such that engaging the first and mated threaded engagement portions by rotation of the lid with respect to the bucket around a lid central axis to form the sealed sample container requires rotation of the lid with respect to the bucket of no more than 180 degrees.
8. The kit of claim 1 , wherein the first threaded engagement portion and the mated threaded engagement portion have threads dimensioned such that engaging the first and mated threaded engagement portions by rotation of the lid with respect to the bucket around a lid central axis to form the sealed sample container requires rotation of the lid with respect to the bucket of no more than 90 degrees.
9. The kit of claim 1 , wherein the stool specimen collection device further comprises a raised sample disruption feature on an interior surface of at least one of the bucket or the lid.
10. The kit of claim 9 , wherein the sample disruption feature comprises one or more of a ridge or a bump.
11. The kit of claim 1 , wherein the bottom surface of the sealing plate comprises a resilient compressible seating surface that is compressed around the circumference of the top opening of the bucket when the first threaded engagement portion and the mated threaded engagement portion are engaged with each other.