Device and method for delivery of topically applied local anesthetic to wall forming a passage in tissue
AssigneeVidamed, Inc.
InventorThomas H. McGaffigan
Life of this patent
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Abstract
A device for delivering a topically applied anesthetic agent gel to a wall forming a passage in tissue comprising a flexible elongate cylindrical member having proximal and distal extremities. The member is sized so that it can be inserted into the passage. An anesthetic agent is carried by the member for supplying the anesthetic agent along at least the distal extremity of the member for a sufficient period of time to anesthesize the wall and the tissue surrounding the wall whereby other medical devices can be inserted into the passage without substantial pain to the patient.
Claims21
A device for delivering a topically applied anesthetic agent to a wall forming a passage in tissue comprising a flexible elongate cylindrical member having proximal and distal extremities, said member being sized so that it can be inserted into the passage, a balloon mounted in the distal extremity of the flexible elongate cylindrical member, said member having a lumen extending from the proximal extremity to the distal extremity and a balloon inflation port in the member in communication with the balloon and the lumen in the member for inflating and deflating the balloon and means including at least one port proximal of the balloon for supplying an anesthetic agent through the port to the wall along at least the distal extremity of the member for a sufficient period of time to anesthesize the wall and the tissue surrounding the wall wherein other medical devices can be inserted thereafter into the passage without substantial pain to the patient.
A method for delivering an anesthetic agent to be topically applied to the wall forming a passage in tissue with the use of a device comprising a flexible elongate cylindrical member having a predetermined length and size to be able to be introduced into the passage, the device carrying means for delivering an anesthetic agent for uniform distribution over the outer surface of the member, comprising inserting the device into the passage, controlling the anesthetic agent so that it does not leak from the passage, retaining the member within the passage for a predetermined period of time to anesthesize the wall and the tissue surrounding the wall, removing the member from the passage and thereafter performing an additional medical procedure utilizing a device which must be inserted into the passage.
Dependencies are inferred from the claim text.