A multi-axial spinal cross-connector is configured for connection between spinal fixation devices such as spinal fixation rods. The biasing member biases backward in the extending direction the housing body that is in a state where the housing body has relatively moved forward in the extending direction of the extension section, and a position in a front-and-back direction of the biasing member is close to the front compared to positions in a front-and-back direction of the supply reel and the winding reel. The intermediate transaction manager multiplexes and intercepts calls and notifications between the one or more resource managers and the plurality of transaction managers.