Patent ID: 7470252

Claim:
A therapeutic delivery device for delivery of therapeutic to a target site within the body of a patient comprising: a first catheter having an internal lumen; an expandable multi-port housing forming a first chamber fluidly coupled to an end of the first catheter, the multi-port housing sized to travel within a lumen of the patient, the multi-port housing adapted to expand from a first configuration to a second configuration, the second configuration being larger than the first configuration, the multi-port housing containing at least two ejection ports, at least one of the ejection ports fluidly coupled to an internal lumen of the multi-port housing; a shunt forming a second chamber within the multi-port housing, the shunt configured to allow fluid to flow through an outer wall of the multi-port housing when the multi-port housing is deployed in the body of a patient, the second chamber being isolated from the first chamber to prevent fluid communication between the first and second chambers; and a second catheter, the second catheter slidable within the first catheter.