300 Longwood Ave, Boston, MA 02115 2525 Chicago Ave, Minneapolis, MN 55404
Education:
Doctor of Medicine
Board certifications:
American Board of Surgery Certification in Surgery, American Board of Surgery Sub-certificate in Pediatric Surgery (Surgery)
Intra-Extravascular Drug Delivery Catheter And Method
US Patent:
5538504, Jul 23, 1996
Filed:
Jul 1, 1994
Appl. No.:
8/269936
Inventors:
Bradley C. Linden - Minneapolis MN Donald F. Palme - Dayton MN Peter T. Keith - Fridley MN Robert E. Atkinson - New Brighton MN
Assignee:
SciMed Life Systems, Inc. - Maple Grove MN
International Classification:
A61M 3100
US Classification:
604 53
Abstract:
A drug delivery catheter is provided which includes a catheter comprised of an elongated tubular shaft with an inner lumen and a vessel puncturing element which is housed in the lumen. The puncturing element has a retracted position such that it will not be in contact with the vessel wall as the catheter is guided through the vasculature. The puncturing element also has a puncturing position where it protrudes radially outward of the catheter shaft and engages and punctures the vessel wall. The catheter is first inserted into the vessel to be treated and the puncturing element is positioned at the site in the vessel to be treated. The puncturing element is then moved to its puncturing position and the inner surface of the vessel wall is punctured. A drug is then delivered through the puncture. The drug may be delivered into either the vessel wall itself or to the outside of the vessel wall.