Patent ID: 7998060

Claim:
A lumen-traveling delivery device comprising: a propelling mechanism; a material release portion configured to release a deliverable material; a capture portion distinct from the material release portion and capable of capturing the deliverable material released from the material release portion; an expanding or extending portion positioned downstream of the material release portion and the capture portion and configured to at least temporarily seal with a wall of a body lumen in the vicinity of a treatment target to completely block a flow of fluid through the body lumen to keep the deliverable material released from the material release portion in the vicinity of the delivery device to be captured by the capture portion; and control circuitry located at least in part on the delivery device, the control circuitry capable of controlling the operation of the propelling mechanism to move the delivery device through the body lumen to the treatment target, controlling the material release portion to release a deliverable material and controlling the capture portion.