公开(公告)号：US10470851B2

公开(公告)日：2019-11-12

申请号：US15104270

申请日：2014-12-22

Applicant: STRAUMANN HOLDING AG

Inventor： Stéphane Courvoisier ,  Silvio Blumenthal

IPC: A61C8/00 ,  A61C13/225

Abstract: A self-retaining screw assembly comprising a dental secondary component and a screw. The secondary component comprises a through passage having an apical and a coronal open end, and a screw seat located between said apical and coronal ends. The screw comprises a screw rod and a screw head, the screw head being dimensioned to abut against the screw seat and the screw rod being dimensioned to pass unhindered through the through passage such that the apical end of the rod can protrude from the apical end of the through passage. The through passage further comprises, coronal of the screw seat, a first section and, directly coronal of the first section a second section having a narrower diameter than the first section, such that the second section forms a restriction in the through passage. The screw head comprises a radially outwardly extending retaining element.

公开(公告)号：US10575933B2

公开(公告)日：2020-03-03

申请号：US15557416

申请日：2016-03-07

Applicant: STRAUMANN HOLDING AG

Inventor： Marianne Berg ,  Friedhelm Kraft ,  Silvio Blumenthal

IPC: A61C19/02 ,  A61C3/04 ,  A61B50/33 ,  A61B50/34 ,  A61B50/20 ,  A61B50/30 ,  A61L2/26

Abstract: A cassette for storage of at least one medical instrument, the cassette including at least one spring sheet, the spring sheet including at least one holding means for retaining the medical instrument therein, the holding means including an aperture forming a passage through the spring sheet for receiving the medical instrument and at least one spring element provided adjacent to the passage for exerting a biasing spring force to retain the medical instrument within the passage, and wherein the spring sheet, including the holding means, is made of a metal or a metal alloy.