Automated ultra-filtration apparatus
US9658242B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 2015 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Aug 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/1053
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a disposable ultra-filtration system comprising a disposable pipetting tip and a disposable ultra-filtration cartridge, wherein the cartridge includes a membrane filtration chamber and a dead-end channel. In use, a piston in the pipette pressurizes air within the channel; the pressurized air can subsequently move the piston and cause a reverse flow back through the membrane of the cartridge, unplugging the pores thereof. Also disclosed is an automated workstation incorporating the disposable ultra-filtration system, and a system comprising the automated workstation, useful for measuring the free therapeutic drug concentration and free hormone concentration in a sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.