초록 ▼

A pipetting system for dispensing multiple liquids into a single receptacle includes a plurality of liquid reservoirs, a plurality of syringes for aspirating preselected quantities of liquids from the reservoirs, and a common dispensing head connected to all the syringes for simultaneously receiving

A pipetting system for dispensing multiple liquids into a single receptacle includes a plurality of liquid reservoirs, a plurality of syringes for aspirating preselected quantities of liquids from the reservoirs, and a common dispensing head connected to all the syringes for simultaneously receiving the preselected quantities of liquids from a plurality of the syringes and simultaneously dispensing the liquids into the reservoir. The system also includes means for simultaneously aspirating the preselected quantities of liquids from the reservoirs into the syringes. In addition, the system includes aspirating means for withdrawing a liquid sample from a container into the dispensing head at an aspirating position, means for storing the aspirated sample while the dispensing head is moved from the aspirating position to a dispensing position, and means for dispensing the aspirated sample to the dispensing head simultaneously with the dispensing of the preselected quantities of other liquids. The dispensing/aspirating head is mounted for vertical movement in both the dispensing and aspirating positions to permit the lower end of the head to be lowered into both the aspirating container and the dispensing receptacle, and means are provided for automatically stopping the downward movement of the head at different preselected elevations in the dispensing and aspirating positions, and means for adjusting those preselected elevations.

대표청구항 ▼

A pipetting system for dispensing multiple liquids into a single receptacle, said system comprising the combination of a plurality of internal liquid reservoirs holding a plurality of different reagents, an internal reservoir of buffer liquid, a plurality of syringes each of which is connected to on

A pipetting system for dispensing multiple liquids into a single receptacle, said system comprising the combination of a plurality of internal liquid reservoirs holding a plurality of different reagents, an internal reservoir of buffer liquid, a plurality of syringes each of which is connected to one of said internal reservoirs for aspirating and dispensing preselected volumes of said reagents and said buffer liquid, a sampling syringe for aspirating a preselected volume of an external liquid sample, a common dispensing/aspirating head connected to all of said syringes for receiving the aspirated sample from an external source and for simultaneously dispensing said sample and said plurality of reagents, a plurality of switchable valves each of which is connected to one of said syringes for selectively connecting said syringes to the respective reservoirs or to said dispensing/aspirating head, and means for switching said valves at preselected positions of the syringes, and means for operating said syringes in unison for simultaneously aspirating said reagents and sample and then simultaneously dispensing said preselected volumes of the reagents and sample.