Linear eversion catheter with reinforced inner body extension

US5171305A · kind A · utility

Assignee

• Imagyn Medical, Inc. · US

Inventors

• David P. Schickling · Laguna Hills, US
• Guy Russell Lowery · Mission Viejo, US
• Steven Bacich · Laguna Niguel, US
• David M. Ciulei · Tecate Mission Road, US
• Gary Woker · Escondido, US

Key dates

• Filing date: Oct 17, 1991
• Grant date: Dec 15, 1992
• Expiry date: Oct 17, 2011

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M25/0119
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A catheter comprising an elongated catheter body having a lumen with a distal opening, an elongated inner tube having a flexible distal end portion and a flexible everting element coupled to the catheter body and the inner tube so that the everting element can be inverted and everted to the distal opening. The inner tube has an inner tube lumen which extends through the distal end portion of the inner tube. The distal end portion of the inner tube includes a flexible tubular layer and a flexible reinforcing layer which reinforces the tubular layer and inhibits radial collapse of the inner tube lumen in the distal end portion of the inner tube.