A holding fixture for an injection device for the injection of a medium into a combustion chamber of an internal combustion engine is provided, the injection device including an injector provided with at least one spray-discharge orifice, from which the medium is spray-discharged; the holding fixture has a first region disposed near the spray-discharge orifice of the injector, and a second region which faces away from the spray-discharge orifice of the injector, the holding fixture having at least one tubular heat conduction device, which extends at least between the first region and the second region.