DEVICE FOR USE IN THE STUDY OF CHEMICAL AND BIOLOGICAL REACTIONS AND METHOD OF MAKING SAME

• US 3,690,836 A
• Filed: 11/12/1970
• Issued: 09/12/1972
• Est. Priority Date: 03/01/1966
• Status: Expired due to Term

• Current Assignee: Buissiere Jean, Colobert Louis, Montagnon Paul A F
• Original Assignee: Buissiere Jean, Colobert Louis, Montagnon Paul A F
• Inventors: BUISSIERE JEAN, COLOBERT LOUIS, MONTAGNON PAUL A F
• Application Number:
  US05/089,032
• Time in Patent Office: 670 Days
• US Class Current: 422/421
• CPC Class Codes: B01L 2200/12 Specific details about manufacturing devices
• CPC Class Codes: B01L 2300/0825 Test strips
• CPC Class Codes: B01L 2300/0887 Laminated structure
• CPC Class Codes: B01L 2400/0406 capillary forces
• CPC Class Codes: B01L 3/5023 with a sample being transported to, and subsequently stored in an absorbent for analysis
• CPC Class Codes: C12Q 1/04 Determining presence or kind of microorganism; Use of selective media for testing antibiotics or bacteriocides; Compositions containing a chemical indicator therefor C12Q1/6897 takes precedence

Abstract

DEVICES FOR THE STUDY OF CHEMICAL OR BIOLOGICAL REACTIONS ARE PROVIDED BY FORMING A SANDWHICH OF TWO PLASTIC SHEETS HAVING AT LEAST ONE SHEET OF POROUS WATER-ABSORBENT MATERIAL SUCH AS FILTER PAPER INTERPOSED THEREBETWEEN. UPON COMPRESSION OF THE SANDWICH, AS BETWEEN SUITABLY DESIGNED HEATER ELECTRODES, ONE OR MORE CHAMBERS ARE FORMED, EACH CHAMBER HAVING A PORTION OF THE WATERABSORBENT SHEET POSITIONED THEREIN AND HAVING SUITABLE APERTURES PROVIDED THROUGH WHICH APERTURES CHEMICALS ENZYMES, AND CELL SUSPENSIONS MAY BE INTRODUCED FOR TESTING OF THE METABOLIC UTILIZATION OF SUCH CHEMICALS BY SUCH ENZYMES OR CELLS AND OBSERVATION OF CONCIMITANT COLOR REACTION WITHIN SAID CHAMBERS.

Claims