Provided is a heat-curable silicone resin sheet that is able to easily uniformly disperse phosphors on an LED element surface, a method of producing a light emitting device utilizing the same and an encapsulated light emitting semiconductor device obtained by the method utilizing the same. The catheter includes a shaft with a heat exchange region disposed at its distal end. To do this, the cannula and stylet are locked in combination and inserted through an operating corridor to the pedicle target site, using the T-handle to facilitate easy movement and positioning of the cannulastylet combination. The surface of the delimiting member can be subjected to surface treatment to decrease the repellency to the liquid material constituting the protective layer.