Body fluid sample collection tube composite

• US 4,827,944 A
• Filed: 07/22/1987
• Issued: 05/09/1989
• Est. Priority Date: 07/22/1987
• Status: Expired due to Term

• Current Assignee: Becton, Dickinson & Co
• Original Assignee: Becton, Dickinson & Co
• Inventors: Nugent, Edward L.
• Primary Examiner(s): Hindenburg, Max
• Application Number:
  US07/076,446
• Time in Patent Office: 657 Days
• Field of Search: 128/760-764, 128/770, 128/771, 604/51, 604/52, 604/187, 604/236, 604/238, 604/403, 604/404, 604/318, 604/411-416, 428/35, 215/256, 215/246
• US Class Current: 600/584
• CPC Class Codes: B01L 3/5082 Test tubes per se
• CPC Class Codes: G01N 2001/007 Devices specially adapted for forensic samples, e.g. tamper-proofing, sample tracking
• CPC Class Codes: G01N 33/521 Single-layer analytical elements

Abstract

A composite body fluid sample container is provided which incorporates at least one dry chemistry test strip into the structure with a shrink-wrap film whereby a plurality of chemically impregnated patches are exposed simultaneously in a self-contained device to provide instant response to a specimen introduced into the container. Moreover, the device separates the test strip from the remainder of the specimen so as to provide for additional testing if required. In addition, the device maintains the specimen, and the impregnated test strip isolated from exposure to contamination while at the same time keeping the specimen, if diseased, from contaminating handlers of the device. Finally, the device protects against breakage and any resulting leakage or contamination.

Claims

1. A composite sample container assembly for receiving and containing body fluid samples for testing in which a plurality of tests are carried out simultaneously upon introduction of a fluid sample into the container, but which sample remains segregated in the container for subsequent further testing, characterized by

(a) an evacuated substantially rigid tube-shaped thermoplastic container defining a sample containing chamber;

(b) said container having a closed end and an open end;

(c) an elastomeric stopper for said open end to maintain a vacuum in said sample containing chamber;

(d) a plurality of spaced apart bores in the wall of said container, and positioned between said open end and said closed end;

(e) a plurality of dry chemistry impregnated patches, with each patch positioned adjacent one of said bores and in communication with but outside said chamber;

(f) each said patch containing a different reagent for reacting with a body fluid sample introduced into said chamber and passing through said bores;

(g) a transparent thermoplastic film shrunk down upon said patches and at least a major portion of the outer surface of said container by the application of heat; and

(h) said transparent thermoplastic film allowing observation of the response of the reagents in each said patch upon a sample being drawn into said chamber by a vacuum applied thereto;

while the sample remains in said chamber for further examination.

2. The assembly of claim 1, further characterized by

(a) said film includes registered tamper serrations adjacent said stopper/container interface.

3. The assembly of claim 1, further characterized by

(a) the surface of said film facing said outer surface of said container being coated with a heat-activated adhesive.

4. The assembly of claim 1, further characterized by

(a) said shrunk-down thermoplastic film is a member selected from the group consisting of polyvinyl chloride, a polyester, and polystyrene.

5. The assembly of claim 4, further characterized by

(a) said film is comprised of prestressed polyvinyl chloride film.

6. The assembly of claim 1, further characterized by

(a) said transparent thermoplastic film is shrunk down over a portion of said elastomeric stopper.