초록 ▼

An improved device for the study of biochemical or enzymatic reactions produced by living organisms is disclosed. The device comprises a sandwich of two plastic sheets sealed to each other, the said sandwich having a central open area with upstanding walls which define a central receptacle which is

An improved device for the study of biochemical or enzymatic reactions produced by living organisms is disclosed. The device comprises a sandwich of two plastic sheets sealed to each other, the said sandwich having a central open area with upstanding walls which define a central receptacle which is closed at its bottom by one of said plastic sheets. Internal of the sandwich are a plurality of radially-extending cavities providing individual reaction chambers, which are in communication with the central receptacle internal of the sandwich, as by means of capillaries of reduced cross-section with respect to the reaction chambers themselves. The reaction chambers have apertures therein at their radially-outwardly extending portions to enable aerobic growth therein. The reaction chambers may be provided with sheets of absorbent material and/or color-producing reagents, which are preferably in said absorbent material. The device is also provided with means for positioning of the device on the axis of a horizontal centrifuge, so that samples may be placed therein through the central receptacle portion and readily distributed into the individual reaction chambers thereof by means of rotation on a standard centrifuge. The device also preferably comprises a central cap which fits down snugly internal of the central receptacle and the walls of which correspond to the inside of the walls of the central receptacle and are of a height which enables the cap to extend to the bottom thereof, thereby isolating whatever is in the reaction chambers from the central receptacle. The entire device, after centrifugation to distribute the sample into the individual reaction chambers, may have the central cap placed therein and in turn be placed into a Petri dish, preferably provided with a layer of absorbent material therein to provide necessary moisture, and incubated in usual manner to produce reactions and/or color reactions in the various reaction chambers for purposes of characterizing or identifying the specimen placed in the central receptacle for testing.

대표청구항 ▼

A device for the study of biochemical or enzymatic reactions produced by living organisms, comprising a sandwich of two plastic sheets sealed to each other, the first sheet of said sandwich being dimensioned and contoured so as to provide a central open area having upstanding walls, defining a centr

A device for the study of biochemical or enzymatic reactions produced by living organisms, comprising a sandwich of two plastic sheets sealed to each other, the first sheet of said sandwich being dimensioned and contoured so as to provide a central open area having upstanding walls, defining a central receptacle, said central receptacle being closed at its bottom by the substantially planar second of said sheets, the said sandwich having internal thereof a plurality of radially-extending cavities providing individual reaction chambers, said reaction chambers having apertures therein at their radially outwardly-extending portions, wherein said apertures are so formed in said reaction chambers as to have upwardly-extended walls to prevent escape of the contents from said reaction chambers, said reaction chambers being in communication with said central receptacle internal of said sandwich, and wherein said chambers are in communication with said central receptacle by means of further cavities providing capillaries of reduced cross-section with respect to said reaction chambers arranged between said reaction chambers and said central receptacle and providing communication between the bottom of said central receptacle and said radially-extending reaction chambers.