Embrex, Inc.

Brantley Angell

John Hilbert Hebrank

Stephen P Wolfe

Edward W Gross

Sean Bryan

Phillip L Rybarczyk, Jr

Mike Schnupper

Dan Rees

Jamie Sprenkel

Sean M Bryan

An injection apparatus for injecting and/or removing substances from subjects, such as avian eggs, includes an injection needle having a body portion and a tapered portion that terminates at a tip. A tube is attached to and extends around the injection needle in substantially concentric relationship therewith. The tube has an end portion positioned a predetermined distance from the needle tip. The tube end portion acts as a stop to limit the distance the needle tip can be inserted into a subject, such as an egg, through a membrane of the subject. A detector may be utilized to measure force exerted on a membrane of an egg by a stop attached to a needle. Force exerted on a membrane by a needle and/or by a needle and a stop attached to the needle may also be measured.

Methods and apparatus for injecting and sampling material through avian egg membranes

Methods for injecting and sampling material through avian egg membranes

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Garner, NC, United States of America

Brantley Angell