Thermocycler and lifting element
AssigneeTecan Trading AG
InventorsDonat Elsener, Daniel Ryser
Life of this patent
Estimating the term…
Abstract
Some of the blind holes (6) between indentations (4) of a heating surface (3) contain lifting elements (7) which, after opening of a cover, release a microtitre plate (13) from the heating surface (3) and raise said microtitre plate about 2 to 3 mm, so that it can be removed without application of force. Each lifting element (7) consists of a coil spring (8) and a contact pin (9) made of, for example, PEEK which is inserted into said coil spring and presses with a round flat abutting surface (12) against the lower surface of the microtitre plate (13). The spring constant of the lifting element (7) is about 6 N/mm.
Claims14
A thermocycler having a heating plate which forms a heating surface for holding a microtitre plate whose wells are held in indentations provided in the heating surface, and have a cover which can be lowered and raised relative to the heating surface, said cover serving for pressing the microtitre plate against the heating surface, wherein a plurality of elastically compressible lifting elements for rising and detaching of the microtitre plate from the heating surface are distributed over the heating surface, said lifting elements projecting beyond the edges of the indentations at least when the cover is raised.
Dependencies are inferred from the claim text.