Pipetting device, pipette tip coupler, and pipette tip: devices and methods

Abstract

Pipette assembly comprising a pipette device, a pipette tip, and an expanding mandrel collet coupling device coupling the tip to the pipette device, the coupling device comprising: circumferentially spaced apart segments, an annular base disposed below the segments and comprising a distal portion, an elastomeric element circumscribing the distal portion, and upwardly extending circumferentially spaced apart arms attached at first ends to the annular base and having upper free ends each supporting a different one of the segments configured to expand between a first and a second greater circumference for engaging a first interior working surface of the tip in concurrence with the elastomeric element sealing against a second interior working surface below the first surface and in concurrencewith an abutment between a disk exteriorly disposed about a medial portion of the arms and a stepped interior shoulder of the tip disposed between the first and second working surfaces.

Description

[0001] Cross References to Related Applications [0002] This application claims priority under 35 USC Part 119(e) to co-pending U.S. Provisional Patent Application No. 62 / 350,302, filed June 15, 2016, the entire disclosure of which is incorporated herein by reference middle. This application also claims priority under 35 USC Section 119(e) to co-pending U.S. Provisional Patent Application No. 62 / 350,291, filed June 15, 2016, the entire disclosure of which is hereby incorporated by reference into this article. technical field [0003] The present disclosure relates generally to pipetting devices, and more particularly to pipette tip couplers, disposable pipette tips, combinations of pipette tips and couplers, and coupling at least one disposable pipette tip A method of disengaging to or from at least one pipette tip coupling operably carried by a pipetting device. Background technique [0004] Pipetting devices are used in various industries to transfer liquids for exper...

AI Technical Summary

Problems solved by technology

As a result, microcracks can form in the pipette tip, which can cause leaks

Furthermore, the high pressure placed on the pipette tip has the disadvantage that a high force must be applied in order to release the pipette tip

[0007] Nonetheless, current systems using stepped coupling studs and separate O-ring configurations are problematic when the O-ring becomes compromised, as the result is a compromised airtight seal and performance of the pipette device

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