device for the contactless mikroinjektion and for sorting and for the extraction of planar animal biological objects with laser beams

摘要

PCT No. PCT/EP97/00429 Sec. 371 Date Aug. 5, 1998 Sec. 102(e) Date Aug. 5, 1998 PCT Filed Jan. 31, 1997 PCT Pub. No. WO97/29355 PCT Pub. Date Aug. 14, 1997The invention discloses a process for sorting and harvesting biological objects on a planar carrier (2). On a planar carrier (2) an object field or the object itself, located on the carrier (2), is cut out with a laser beam (6) and transferred by means of a laser-induced transport process to a collector substrate (5) which is disposed directly above or below the carrier. During the cutting-out process, either the laser beam (6) moves in a closed curve about the object or the object itself is cut directly out of the carrier (2) in a computerized manner. This method enables individually selected objects to be spatially separated and sorted from a very large number of objects. The method can also be used to separate specific cells from tissue sections.