A medical device may comprise a handle having a fluid source, a conduit coupled to the handle, and a distal portion coupled to a distal end of the conduit. The distal portion may comprise an outer portion defining a lumen and an inner portion. The inner portion may be disposed within the lumen if the outer portion. The inner portion may define a cavity having a distal opening. The cavity may be configured to contain a material. In a first configuration of the distal portion, the material is disposed within the inner portion. Delivery of a fluid from the fluid source into the lumen of the outer portion transitions the distal portion from the first configuration to a second configuration and causes the inner portion to move distally relative to the outer portion and deliver at least a portion of the material.