Multi-well test plate

• US 5,110,556 A
• Filed: 08/22/1991
• Issued: 05/05/1992
• Est. Priority Date: 10/28/1986
• Status: Expired due to Term

• Current Assignee: Corning Incorporated
• Original Assignee: CoStar Group Inc.
• Inventors: Lyman, George, Labriola, Anthony
• Primary Examiner(s): KRYZA, LYNN M
• Application Number:
  US07/749,166
• Time in Patent Office: 257 Days
• Field of Search: 422/101, 422/102, 422/99, 422/58, 436/809, 436/810, 436/165, 436/177, 436/180, 356/244, 356/246, 435/300, 435/301, 435/311, 435/809
• US Class Current: 422/552
• CPC Class Codes: B01L 3/50255 Multi-well filtration
• CPC Class Codes: B01L 3/5085 for multiple samples, e.g. microtitration plates
• CPC Class Codes: B01L 3/50855 using modular assemblies of strips or of individual wells
• CPC Class Codes: G01N 2021/0357 Sets of cuvettes
• CPC Class Codes: G01N 21/03 Cuvette constructions
• CPC Class Codes: G01N 2201/0446 Multicell plate, sequential
• CPC Class Codes: Y10S 435/809 Incubators or racks or holders for culture plates or containers
• CPC Class Codes: Y10S 436/809 Multifield plates or multicontainer arrays
• CPC Class Codes: Y10T 436/25375 Liberation or purification of sample or separation of material from a sample [e.g., filtering, centrifuging, etc.]

Abstract

A multi-well test plate which includes a base and a plurality of well strips. The well strips are removable from the base and the individual wells of each strip are separable. The wells in each strip are joined by T-shaped connecting members which hold the wells in a flat linear array when the well strips are either held in or removed from the base and the T-shaped members are readily severable to permit easy separation of individual wells. The bottom wall of each well is a microporous membrane.

Claims

1. A multi-well strip constructed and arranged to be removably mounted in a test plate comprising:

a multi-well strip comprising a plurality of spaced-apart wells arranged in a linear array and molded together as a strip of wells, each of said plurality of wells having side and bottom walls, wherein the bottom wall of each well is a microporous membrane,

frangible connecting means joining pairs of adjacent wells and enabling each well to be readily separated from the other wells in the strip, and

flanges attached to end wells of the strip and extending in opposite directions to permit releasable mounting of the strip on a test plate.

2. The multi-well strip of claim 1, wherein the strip is made of molded plastic.

3. The multi-well strip of claim 1, wherein the flanges on the end wells of the strip are dissimilar to facilitate orientation of the strip in a prescribed direction when mounted in a test plate.