Philipp Bauer,Sascha Kuner,Werner Saule,Frank Schienle,Martin Weber,Robert Zschaler
申请号：
US15525003
公开号：
US20180317959A1
申请日:
2015.11.05
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention relates to a method for the manufacture of cannulae, as well as cannulae that have been manufactured using the method. The invention further relates to a device that is suitable for the manufacture of cannulae using the method.The method involves the manufacture of a cannula from a hollow tubular segment (1), with a penetrating entity that has a leading penetrating section and a trailing aperture section, wherein the leading penetrating section has a beveled surface that extends rearward from a penetrating tip and has inner lateral edges, and wherein the trailing aperture section has a beveled surface that extends rearward from the beveled surface of the leading section and has inner lateral edges as well as a rounded trailing edge (10, 12), wherein the rounding of trailing edge (10, 12) is produced by means of electrochemical machining (ECM) in the presence of an electrolyte.
