Abbott Cardiovascular Systems, Inc.

Advanced Cardiovascular Systems, Inc.

Rommel Lumauig

Chad Joseph Abunassar

Joel Harrington

Jill A McCoy

Yunbing Wang

James Oberhauser

Xiao Ma

David Douglas Hart

Cornel I Ciurea

Mark A Ritchie

Jay A King

Randolf Von Oepen

Kevin Joe Ehrenreich

Travis Richard Yribarren

Binh T Nguyen

Sung Woo Min

Stephen D Pacetti

Ni Ding

Diem Uyen Ta

Jesus Magana

Boyd V Knott

Lorcan James Coffey

Kathleen Yan

William E Webler, Jr

Senthil Kumar Eswaran

Gregory Waimong Chan

Karim Said Osman

Chicheng Wang

Mark C Johnson

Joseph R Callol

Grayson Morris

Dorrie M Happ

Jeremy B Beer

Napoleon L Caliguiran

Lily Ayo Roberts

Jessica Liang

Renee E Garcia

Jill McCoy

Sean A Mcniven

A scaffold includes a radiopaque marker connected to a strut. The marker is retained within the strut by a head at one or both ends. The marker is attached to the strut by a process that includes forming a rivet from a radiopaque bead and attaching the rivet to the marker including deforming the rivet to enhance resistance to dislodgement during crimping or balloon expansion. The strut has a thickness of about 100 microns.

Scaffolds having a radiopaque marker and methods for attaching a marker to a scaffold

A medical device includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of the stent when later deployed to support a body lumen. A variable diameter sheath with a central portion that prevents expansion of the stent when the balloon is pressurized and larger diameter ends is disposed over the crimped stent-balloon assembly. The balloon is pressurized and the larger diameter ends of the sheath allow the balloon beyond the ends of the stent to expand. The balloon is then depressurized.

Method of increasing stent retention of bioabsorbable scaffolding with a sheath

Methods are disclosed including thermally processing a scaffold to increase the radial strength of the scaffold when the scaffold is deployed from a crimped state to a deployed state such as a nominal deployment diameter. The thermal processing may further maintain or increase the expansion capability of the scaffold when expanded beyond the nominal diameter.

Thermal processing of polymer scaffolds

A radiopaque marker bead can be attached to an endoprosthesis by pressing an end of bead into a through hole formed into the endoprosthesis and allowing the opposite end of the bead to pass through the hole and protrude out of the other end of the hole. Both ends of the bead can then be pressed and flattened so as to frictionally engage both ends of the hole. A support tool having a curved outer surface can be inserted into the endoprosthesis to support the endoprosthesis luminal surface while the bead is being pushed into the hole. The support tool has a depression which allows the opposite end of the bead to protrude out of the hole.

System and method for attaching a radiopaque marker bead to an endoprosthesis

Methods for attaching a radiopaque marker to a scaffold

A medical device-includes a scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes one or more balloon pressurization steps. The balloon pressurization steps are selected to enhance scaffold retention to the balloon and maintain a relatively uniform arrangement of balloon folds about the inner surface of the crimped scaffold so that the scaffold expands in a uniform manner when the balloon is inflated.

Uniform crimping and deployment methods for polymer scaffold

A catheter for delivering an agent to an injection site in a wall of a patient's body lumen, with an elongated shaft having a needle-through lumen slidably containing a needle therein, and an expandable member on the distal shaft section which has a collapsed configuration and a radially expanded configuration. In the radially expanded configuration, the expandable member supports the shaft in a position spaced away from the body lumen wall, and the needle slidably exits the needle-through lumen in the extended configuration through the port spaced away from the body lumen wall as a portion of the expandable member maintains the position of the port section of the shaft in the body lumen. The expandable member typically has an open-walled, helical, or lobed configuration providing a perfusion path along the expandable member.

Agent delivery catheter having a radially expandable centering support member

Agent delivery catheter having a radially expandable centering support members

An agent delivery catheter having two or more axially spaced balloons and an inflation bridge providing fluid communication between the two balloons. The catheter generally has a proximal balloon, a distal balloon, and a tube defining an inflation bridge lumen which is located in part within the inflatable interiors of the balloons, and which extends therebetween, and which has a proximal port within the proximal balloon interior and a distal port within the distal balloon interior to thereby provide for inflation of the distal balloon by placing the distal balloon interior in fluid communication with the proximal balloon interior of the shaft.

Agent delivery catheter having an inflation bridge between two axially spaced balloons

An apparatus and process is disclosed for the electrolytic removal of metal from a device, such as a medical device. More particularly, the apparatus of the invention includes a mandrel having slots or openings therein to expose portions of a metallic device, such as a stent, to an electrolytic solution to remove metal from the exposed portion.

Apparatus and process for electrolytic removal of material from a medical device

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San Jose, CA, United States of America

Rommel Lumauig