Title:
METHOD FOR THE MASK-ETCHING OF A PIERCING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/041557
Kind Code:
A9
Abstract:
The application relates to a method for the mask-etching of a piercing element (14) which has an elongate shaft (16), a distally protruding tip (18), a proximal holding part (20), and a laterally open collecting channel (22) that collects bodily fluid and extends along the shaft (16) as far as the area of the tip (18). For this purpose, a double-sided etching mask (10) is applied to the two sides of a substrate (12) and, under the action of an etching agent, the piercing element (14) is formed as a part made by chemical blanking, wherein a channel side (28) of the etching mask (10) is provided with a channel etching slit (38) for unilateral etching of the collecting channel (22). It is proposed that a proximal and/or distal end portion (40, 60) of the channel etching slit (38) is designed tapering towards the end of the slit.
Inventors:
ZIPFEL MARZELLINUS (DE)
LOPEZ MRAS ANGEL (DE)
LOPEZ MRAS ANGEL (DE)
Application Number:
PCT/EP2012/068426
Publication Date:
September 26, 2013
Filing Date:
September 19, 2012
Export Citation:
Assignee:
ROCHE DIAGNOSTICS GMBH (DE)
HOFFMANN LA ROCHE (CH)
ZIPFEL MARZELLINUS (DE)
LOPEZ MRAS ANGEL (DE)
HOFFMANN LA ROCHE (CH)
ZIPFEL MARZELLINUS (DE)
LOPEZ MRAS ANGEL (DE)
International Classes:
A61B5/15; A61B5/151; B01L3/00; A61B5/157
Attorney, Agent or Firm:
PFIZ, Thomas et al. (Hauptmannsreute 93, Stuttgart, DE)
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