Apparatus for performing diagnostic testing

• US 6,641,782 B1
• Filed: 11/15/2000
• Issued: 11/04/2003
• Est. Priority Date: 11/15/2000
• Status: Expired due to Fees

• Current Assignee: Intellectual Ventures I LLC (Intellectual Ventures LLC)
• Original Assignee: Polaroid Corporation (PLR IP Holdings LLC)
• Inventors: Achyuthan, Komandoor E., Appleman, James R., Mauchan, Donald E.
• Primary Examiner(s): SNAY, JEFFREY R
• Application Number:
  US09/713,705
• Time in Patent Office: 1,084 Days
• Field of Search: 422/52, 422/102, 436/172, 436/165, 250/361.C
• US Class Current: 422/52
• CPC Class Codes: G01N 21/76 Chemiluminescence; Bioluminescence

Abstract

The present invention relates generally to diagnostic assay systems and methods thereof that are capable of conducting and recording assays in a simple and reliable manner.

Claims

1. A chemiluminescent reaction implementation device comprising:

a housing assembly including at least a pair of containers each of which is adapted to contain a different fluid, said different fluids being of the types which may produce a chemiluminescent reaction when mixed together;

a fluid impervious membrane sealing one of the pair of containers from the other of the pair of containers, thereby keeping said different fluids in each of the containers separate; and

, a penetrating assembly mounted for movement in the housing assembly and being adapted to engage and penetrate the sealing membrane upon movement in response to a force being applied thereto for forcing fluid in the one container to mix with fluid in the other container under pressure while creating a vortex-like mixing action to enhance generation of a chemiluminescent reaction;

the housing assembly including at least a segment thereof that is transparent to a light-emitting read-out signal generated in response to a chemiluminescent reaction of the mixing fluids; and

the pair of containers are removably coupled to each other to allow separation and rejoining thereof by an operator and wherein said sealing membrane has a plurality of integrally formed and radially inwardly directed flap portions generally extending about the periphery of said membrane as well as a larger central flap, said membrane further including frangible grooves defining weakened areas substantially about the periphery of each of said flaps whereby the penetrating assembly causes the membrane to be torn along the grooves and bends the flaps at proximal ends thereof so that the flaps move independently of each other and the remainder of the membrane for further improving fluid flow and mixing of the different fluids.

2. The device of claim 1 wherein each of the flaps bend about a proximal end thereof and remain attached to the membrane after the membrane is penetrated, thereby preventing the flaps from possibly occluding the transparent segment whereby signals from a chemiluminescent reaction would be diminished.

3. The device of claim 1 wherein the penetrating assembly includes a piston portion that is in sliding engagement with an internal wall of one of the containers is movable with the penetrating element for forcing fluid in one container to the other container wherein the piston portion has a frictional fit with the internal wall which is sufficient in magnitude to resist movement thereof until application of a preselected force thereto, and wherein said preselected force is greater than ordinary manual forces applied to the piston potion when a users routinely handles the implementation device.