Covidien LP

James Q Dinh

Brian M Strauss

Jeffrey J Valko

Adriana X Peralta

Lynn M Shimada

Ujwal Jalgaonkar

Maricruz Castaneda

Seferino Torres

Eric Rowson

Seferino Enrique Torres

Maricruz Castenada

Brian Michael Strauss

Lynn Miyeko Shimada

A microcatheter with an enhanced inner liner that has low of friction and improved toughness which facilitates delivery of expandable vascular reconstruction devices.

Microcatheter with modified PTFE liner

A catheter includes an elongated body and an expandable member configured to expand radially outward away from the elongated body from a collapsed configuration to an expanded configuration. The catheter further includes a retainer configured to overlap an end of the expandable member to hold the expandable member in the collapsed configuration. The expandable member may be configured to engage with a vessel wall when the expandable member is in the expanded configuration. The vessel may curve and the expandable member may be configured to deflect a portion of the elongated body distal to the expandable member when the expandable member is engaged with the vessel wall to better conform the shape of the elongated body to the curved portion of the vessel.

Catheter including expandable member

In examples, a microcatheter includes an enhanced inner liner that has a low coefficient of friction and improved toughness, which facilitates delivery of expandable vascular reconstruction devices. The microcatheter may include a stretched polytetrafluoroethylene (PTFE) liner, which may be stretched longitudinally and not circumferentially or radially over at least a portion of a length of the microcatheter. The stretched PTFE inner liner may result in the reduction of a delivery friction and improved toughness and resistance to scraping.

Distal access balloon guide catheter system and methods for delivering implantable devices, catheters, or substances in or near and/or restoring flow through body lumens, such as blood vessel lumens, or inflating balloons affixed to the distal end of the guide catheter system are described. A Distal access balloon guide catheter having a proximal region, an optional medial region of intermediate flexibility, and distal region possessing high flexibility, high resistance to kinking and a large lumen to wall thickness ratio. The balloon is inflated by means of a kink-resistant secondary lumen embedded within the walls of the balloon guide catheter system tubing.

Distal access balloon guide catheter

Growing community of inventors

Irvine, CA, United States of America

James Q Dinh