The present invention relates to holding equipment at an operating table. In order to removably provide equipment at a patient support, a holding device (10) is provided that comprises an accessory rail (12) and at least a first portion (14) of a coupling is provided. The accessory rail is configured as an attachment interface (16) for temporal attachment of equipment (18) at a patient support (20) during intervention. The accessory rail is rigidly connected to the first portion of the coupling. The first portion of the coupling is configured to provide, in interaction with a second portion (22) of the coupling, a movable connection for connecting the accessory rail to a patient support, wherein the movable connection provides a shifting movement of the accessory rail in relation to a patient support. The provision of a movable connection allows, for example, to temporarily move or even remove the accessory rail together with mounted equipment. For example, during an intervention procedure, for certain phases, the equipment is not needed, or a different configuration is needed, and wider access to the patient is required. The equipment can then easily be removed and put back in place.La présente invention concerne un équipement de maintien au niveau d'une table d'opération. Afin de fournir de manière amovible un équipement au niveau d'un support de patient, l'invention concerne un dispositif de maintien (10) qui comprend un rail d'accessoire (12) et au moins une première partie (14) d'un couplage. Le rail d'accessoire est configuré sous la forme d'une interface de fixation (16) pour la fixation temporelle d'un équipement (18) sur un support de patient (20). Le rail d'accessoire est relié de manière rigide à la première partie du couplage. La première partie du couplage est configurée pour fournir, en interaction avec une seconde partie (22) du couplage, une connexion mobile pour relier le rail d'accessoire à un support de patient, la connexion mobile étant configuré
