Browse Prior Art Database

Particle Separator

IP.com Disclosure Number: IPCOM000094331D
Original Publication Date: 1966-Sep-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Hahs, TS: AUTHOR [+2]

Abstract

This particle separator is utilized to separate biological cells and the like from a fluid by electrostatic devices.

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Particle Separator

This particle separator is utilized to separate biological cells and the like from a fluid by electrostatic devices.

Capillary tube I is an open-ended tube carrying particles or cells. Two steel tubes 2 and 3 are shown in close spaced relationship to tube 1. Tubes 2 and 3 are slightly offset from the centerline of capillary tube I. Tube 2 is spaced from tube I in such a way that under normal circumstances cells pass into tube 2 by virtue of suction applied from pump 4 through valve 5 which is normally open. The spacing can be varied depending on the amount of suction applied by pump
4.

Tube 3 is adapted to collect desired cells which have been previously sensed by sensing devices, not shown, according to a desired characteristic which, in response to the sensing of an abnormal cell, generates a signal. The signal, after an appropriate delay, is amplified and applied to tube 3 over conductor 6. Tube 3 normally has suction applied to it through normally open valve 7 of insufficient force to have any effect on cells passing into tube 2.

When a cell to be separated has been sensed, an amplified and delayed pulse of between 600 and 1000 volts is applied via conductor 6 to tube 3. The electrostatic field generated by the pulse in conjunction with the normally applied suction to tube 3 is sufficient to overcome the suction applied to tube 2 and the desired cell passes to container 8 where it is collected on slide 9. The carrier fluid for the cells is...