07238534 is referenced by 112 patents and cites 68 patents.

The invention concerns a device for withdrawing samples of liquid samples for analytical elements. The capillary-device channel is essentially formed by a carrier, a cover and optionally an intermediate layer between the cover and carrier. A notch is located in one of the surfaces forming the channel capable of capillary liquid transport at the edge of the test element forming the sample application opening so that one side of the edge of the test element forming the sample application opening is at least partially discontinuous and the surface opposite to the notch is exposed. It also concerns a method for withdrawing a liquid sample into an analytical element with the aid of a device according to the invention.

Title
Capillary active test element having an intermediate layer situated between the support and the covering
Application Number
9/554793
Publication Number
7238534 (B1)
Application Date
December 3, 1998
Publication Date
July 3, 2007
Inventor
Volker Zimmer
Dossenheim
DE
Agent
Justin Sage
Jill L Woodburn
Assignee
Roche Diagnostics
DE
IPC
G01N 21/00
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