Method and apparatus for intra-aortic substance delivery to a branch vessel

US9956377B2 · kind B2 · utility

Inventors

• Jeffrey M. Elkins · Woodside, US
• Aurelio Valencia · East Palo Alto, US
• Samir Patel · Mountain View, US
• Ricardo Aboytes · East Palo Alto, US
• Harry Goodson · Fremont, US
• Craig A. Ball · Redwood City, US

Key dates

• Filing date: Sep 23, 2013
• Grant date: May 1, 2018
• Expiry date: Sep 4, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2025/105
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A renal flow system injects a volume of fluid agent into a location within an abdominal aorta in a manner that flows bilaterally into each of two renal arteries via their respectively spaced ostia along the abdominal aorta wall. A local injection assembly includes two injection members, each having an injection port that couples to a source of fluid agent externally of the patient. The injection ports may be positioned with an outer region of blood flow along the abdominal aorta wall perfusing the two renal arteries. A flow isolation assembly may isolate flow of the injected agent within the outer region and into the renals. The injection members are delivered to the location in a first radially collapsed condition, and bifurcate across the aorta to inject into the spaced renal ostia. A delivery catheter for upstream interventions is used as a chassis to deliver a bilateral local renal injection assembly to the location within the abdominal aorta.