Sample manager, system and method
AssigneeWaters Technologies Corporation
InventorDavid Zielinski
Life of this patent
Estimating the term…
Abstract
A method of aspirating a sample includes moving a sample needle downward to a first position so a tip of the sample needle touches a bottom of the sample container, determining that the tip of the sample needle is in the first position where the sample needle is in contact with the bottom of the sample container, after the determining that the tip of the sample needle is in contact with the bottom of the sample container, incrementally moving the sample needle upward from the first position, determining the sample needle has moved a predetermined distance upward from the first position and then aspirating a sample in the sample container.
Claims19
A method of aspirating a sample, the method comprising:
- moving a sample needle downward to a first position so a tip of the sample needle touches a bottom of a sample container;
- reducing current in a motor controlling movement of the sample needle during the moving the sample needle downward toward the bottom of the sample container;
- determining that the tip of the sample needle is in the first position where the sample needle is in contact with the bottom of the sample container;
- after the determining that the tip of the sample needle is in contact with the bottom of the sample container, incrementally moving the sample needle upward from the first position;
- determining the sample needle has moved a predetermined distance upward from the first position;
- and
- after the determining the sample needle has moved the predetermined distance upward from the first position, aspirating a sample in the sample container.
Dependencies are inferred from the claim text.