公开(公告)号：US20240066518A1

公开(公告)日：2024-02-29

申请号：US18239609

申请日：2023-08-29

Applicant: DeNovix Inc.

Inventor： Benayah Ben-Avraham ,  Daniel Schieffer ,  David L. Ash ,  Fernando Frederick Kielhorn ,  David B. Ward

IPC: B01L3/02

CPC classification number: B01L3/0227 ,  B01L3/0237

Abstract: Broad volumetric range pipettes with multi-tiered pipette tip holder and ejection assemblies and methods of using such pipettes are disclosed herein. These pipettes typically include a concentric cylinder arrangement with each outer cylinder configured for contacting and dislodging a pipette tip attached to the tip holder portion of the immediately adjacent inner cylinder. In this manner, different sized pipette tips can be used on a single device. In addition, a locking mechanism is described for locking the large tip holder into a downward position to minimize the extension of the small tip holder and thereby enabling attachment of large, filtered pipette tips and reducing/eliminating the risk that the liquid being transferred will contaminate the pipetting device.