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    • 5. 发明公开
    • VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON KANÜLEN
    • VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VONKANÜLEN
    • EP3215294A1
    • 2017-09-13
    • EP15801342.5
    • 2015-11-05
    • RENA GmbH
    • BAUER, PhilippKUNER, SaschaSAULE, WernerSCHIENLE, FrankWEBER, MartinZSCHALER, Robert
    • B23H9/08A61M5/32B23H3/00
    • B23H9/08A61M5/3286B23H3/00
    • The present invention relates to a method for producing cannulas as well as cannulas that have been produced by applying the method. Furthermore, the invention relates to a device which is suitable for producing cannulas by applying the method. The method relates to the production of a cannula from a hollow tube segment (1), comprising an oblique penetrating end which has a front penetrating part and a rear opening part, wherein the front penetrating part has a beveled surface, which extends rearward from a penetrating tip and has internal lateral edges, and wherein the rear opening part has a beveled surface, which extends rearward from the beveled surface of the front part and has internal lateral edges as well as a rounded rear edge (10, 12), wherein the rounding of the rear edge (10, 12) is made by electrochemical machining (ECM) in the presence of an electrolyte.
    • 本发明涉及一种生产套管的方法以及通过应用该方法生产的套管。 此外,本发明涉及适用于通过应用该方法制造套管的装置。 该方法涉及由中空管段(1)制造套管,该套管包括具有前穿透部分和后开口部分的倾斜穿透端,其中前穿透部分具有倾斜表面,该倾斜表面从 并且其中后部开口部分具有斜面,该斜面从前部的倾斜表面向后延伸并且具有内部侧向边缘以及圆形后部边缘(10,12),其中, 在电解质存在下通过电化学加工(ECM)制造后缘(10,12)的倒圆。
    • 7. 发明授权
    • METHOD OF MANUFACTURING A CUTTING MEMBER HAVING AN AUXILIARY LAYER
    • 方法制造具有涂一层切削元件的盖子。
    • EP1058592B1
    • 2003-10-01
    • EP99964592.2
    • 1999-12-14
    • Koninklijke Philips Electronics N.V.
    • ALTENA, Hermanus, S., J.BRUSSEE, MaartenKRAMER, FoppePRAGT, Johan
    • B23H9/08B26B21/60B26B21/56
    • B26B21/60B23H9/08
    • The invention relates to a method of manufacturing a cutting member (3). According to the method, a single side (9) of a carrier (1) of the cutting member is provided with an auxiliary layer (11). The carrier is provided with a cutting edge (7) by means of an electrochemical machining device (19), an electrode (21) of the electrochemical machining device being arranged on a side (15) of the carrier remote from the auxiliary layer. According to the invention, the auxiliary layer is provided as far as the cutting edge to be provided on the carrier, and, after the cutting edge has been provided on the carrier, the auxiliary layer is maintained on the carrier as a layer which is functional for the cutting member. In this manner, the auxiliary layer has a double function and is thus utilized in a better way. In a preferred embodiment, the auxiliary layer mainly comprises SiO2 and has a thickness of below 200 nm, preferably below 100 nm. In this embodiment, an edge (33) of the auxiliary layer, which is present at the location of the cutting edge of the carrier, constitutes an auxiliary cutting edge or even a main cutting edge of the cutting member, so that the cutting member has improved cutting properties and an improved service life. The cutting member is used in a shaving head (37) according to the invention and in a shaving device (35) according to the invention, which shaving device comprises a shaving head. The shaving head further comprises a manipulator (51) which is arranged near the cutting edge of the cutting member for moving hairs (75) along the cutting edge during cutting. In this manner, the auxiliary layer of the cutting member also is a protective layer protecting against wear, corrosion and providing mechanical resistance.