US 12,127,908 B2
Self-ligating bracket for orthodontics
Carsten Wagner, Bretten (DE)
Assigned to Bernhard Foerster GmbH, Pforzheim (DE)
Filed by Bernhard Foerster GmbH, Pforzheim (DE)
Filed on Dec. 9, 2020, as Appl. No. 17/247,396.
Claims priority of application No. 10 2019 134 575.8 (DE), filed on Dec. 16, 2019.
Prior Publication US 2021/0177550 A1, Jun. 17, 2021
Int. Cl. A61C 7/14 (2006.01); A61C 7/28 (2006.01)
CPC A61C 7/145 (2013.01) [A61C 7/287 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A self-ligating bracket for orthodontics, comprising:
a base having a socket disposed on a fastening side;
an occlusal wall that extends from the base;
a gingival wall that extends from the base;
a groove disposed in the base, the groove separating the occlusal wall and the gingival wall from each other, and extending continuously in the mesial to distal direction;
the fastening side facing away from the groove, the fastening side configured for adhesively bonding the socket of the base to a lingual or vestibular surface of a tooth;
a slit disposed in the base, the slit extending in the gingival to occlusal direction, and the slit having a lingually situated surface opposite a labially situated surface; and
a resilient clamp, which has a first clamp leg and a second clamp leg that are connected with each other by an occlusally or gingivally arranged clamp bend;
wherein the first clamp leg is inserted in the slit between the lingually situated surface and the labially situated surface, and can be moved therein in a gingival-occlusal direction between a closed position and an open position of the clamp;
wherein the first clamp leg is set up in such a way as to prevent an unintended loss of the clamp;
wherein the first clamp leg has a recess, into which protrudes a projection that extends from the lingually or labially situated surface of the slit;
wherein the recess is bordered on its end facing away from the clamp bend by a stop, which abuts the projection in the open position of the clamp and limits a further movement of the clamp; and
wherein the lingually or labially situated surface situated opposite the projection has a first and a second flat guiding surface between which a channel is arranged, where the channel forms an escape space inside of the slit, into which the first clamp leg escapes with the stop under a resilient deformation when the stop slides over the projection during insertion of the clamp into the slit.