Apparatus and method for dispensing foam

US7814943B2 · kind B2 · utility

Assignee

• BTG INTERNATIONAL INC. · GB

Inventors

• Anthony David Harman · London, GB
• David D. Wright · Paragon Road, GB
• Jam Willem Marinus Mijers · Heemstede, NL
• Stuart Brian William Kay · Cambridge, GB
• Christopher John Hurlstone · Witham, GB
• Julian Richard Dixon · Ickleton, GB
• Andrew Gordon Pocock · Cambridge, GB
• Brendan Hogan · Gort, IE

Key dates

• Filing date: Sep 9, 2004
• Grant date: Oct 19, 2010
• Expiry date: Nov 19, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D83/756
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Apparatus for dispensing foam for the treatment of, inter alia, varicose veins. The apparatus includes a source of foam and a dispensing device which has an inlet in communication with the source of foam, a usable foam outlet, and a waste bleed outlet. The waste bleed outlet communicates with the inlet and with the useable foam outlet, and has a higher resistance to flow of foam than that of the usable foam outlet. The useable foam outlet may be blocked off such that foam may flow through the high resistance waste bleed outlet, and the usable foam outlet may be opened such that foam may flow through the usable foam outlet.