Skip to Content
Find More Like This
Return to Search

Microinjector for blasocysts

United States Patent

5,877,008
March 2, 1999
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
An electromechanical device for driving the tip of a microinjection cannula, or needle, through the outer barrier of a blastocyst, cell, or cell nucleus for the injection of cells or other bioactive materials. Either a flexible frame or a ram moving within a base member is employed. Cannula motion is achieved by means of a piezoelectric stack and spring return system. The thrust motion over a predetermined microscopic distance is achieved without cannula setback prior to the thrust movement. Instead of specially prepared beveled and tipped needles, standard unimproved cannulas or needles can be used.
Remenyik; Carl J. (Knoxville, TN), Woychik; Richard P. (Beechwood, OH), Patek; David R. (Loudon, TN), Hawk; James A. (Oak Ridge, TN), Turner; John C. (Clinton, TN)
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
08/ 898,232
July 22, 1997
The United States Government has rights in this invention pursuant to contract no. DE-AC05-96OR22464 between the United States Department of Energy and Lockheed Martin Energy Research Corporation.