Covidien LP

Other

Andyanhdzung Huynh

Mark Philip Ashby

Richard S Rhee

Hoai Nguyen

Gaurav Girdhar

Ashok Nageswaran

John Wainwright

Vincent Divino

Junwei Li

Ujwal Jalgaonkar

Christopher C Andrews

James A Davidson

Syamala Rani Pulugurtha

Eric Mintz

Kenneth Brown

Stephen Sosnowski

Erik Skillrud

Hoai (Kevin) Nguyen

Kevin Nguyen

Gopan Patel

Occlusive devices and associated methods of manufacturing are disclosed herein. Manufacturing an occlusive device can include conforming a mesh to a forming assembly and setting a shape of the mesh based on the forming assembly. In some embodiments, the forming assembly comprises multiple forming members, a mandrel, and/or one or more coupling elements. The method may include everting the mesh over the forming assembly such that the mesh encloses an open volume with a shape based, at least in part, on the shape of the forming assembly. According to some embodiments, setting a shape of the mesh comprises heat-treating the mesh and forming assembly.

Devices, systems, and methods for treating aneurysms

Treatment of aneurysms can be improved by delivering an occlusive member (e.g., an expandable braid) to an aneurysm sac in conjunction with an embolic element (e.g., coils, embolic material). A treatment system for such treatment can include an electrolytically corrodible conduit having a proximal portion, a distal portion, and a detachment zone between the proximal portion and the distal portion. An occlusive member having a proximal hub is coupled to the conduit distal portion. The conduit has a lumen configured to pass an embolic element therethrough.

Systems and methods for treating aneurysms

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can include a catheter having a distal portion configured to be positioned adjacent to a thrombus in a blood vessel, an electrode disposed at the distal portion of the catheter, and an interventional element configured to be delivered through a lumen of the catheter. The electrode and the interventional element are each configured to be electrically coupled to an extracorporeal power supply.

Electrically enhanced retrieval of material from vessel lumens

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the removal device. The removal device can have a core assembly that includes a hypotube coupled to a first electrical terminal and a pushwire coupled to a second electrical terminal, the pushwire extending through the hypotube lumen. An insulating layer separates the hypotube and the pushwire, and an interventional element is coupled to a distal end of the pushwire. The interventional element can be disposed adjacent to a thrombus. An electrical signal is delivered to the interventional element to promote adhesion of the thrombus to the interventional element. The electrical signal can optionally be a periodic waveform, and the total energy delivered can be between 0.75-24,000 mJ and the peak current delivered via the electrical signal can be between 0.5-5 mA.

Systems and methods for removal of clot material from vessel lumens are disclosed. A medical device assembly can include a catheter having a lumen and a distal portion configured to be positioned at or adjacent a treatment site within a vessel. An expandable member has a first portion coupled to the distal portion of the catheter, and a second portion extending away from the catheter distal portion. An elongate shaft extends through the lumen of the catheter, and the second portion of the expandable member is releasably coupled to the shaft. When the shaft is slidably moved relative to the surrounding catheter, the second portion of the expandable member can be released from the shaft, and the shaft can be withdrawn or removed.

Catheter with distal interventional element

Retrieval of material from vessel lumens can be improved by use of a distal element comprising an expandable mesh. a treatment device includes an elongated member having a proximal portion and a distal portion configured to be positioned within a blood vessel at a treatment site at or near a thrombus. A distal element comprising an expandable mesh is coupled to the distal portion of the elongated member via a connection assembly. In an expanded state, at least a portion of the mesh is configured to be in apposition with the blood vessel wall at the treatment site to anchor or stabilize the elongated member with respect to the blood vessel. The distal element can be electrically coupled to an extracorporeal current generator.

Retrieval of material from corporeal lumens

Retrieval of material from vessel lumens can be improved by electrically enhancing attachment of the material to the thrombectomy system. The system can include a catheter having a distal portion configured to be positioned adjacent to a thrombus in a blood vessel, an electrode disposed at the distal portion of the catheter, and an interventional element configured to be delivered through a lumen of the catheter. The electrode and the interventional element are each configured to be electrically coupled to an extracorporeal power supply. The interventional element may be configured to evert over and around the clot material while current is delivered to the interventional element.

Retrieval of material from vessel lumens

Systems and methods for treating an aneurysm in accordance with embodiments of the present technology include intravascularly delivering an occlusive member to an aneurysm cavity and deforming a shape of the occlusive member via introduction of an embolic element to a space between the occlusive member and an inner surface of the aneurysm wall.

Devices, systems, and methods for treatment of intracranial aneurysms

Treatment of aneurysms can be improved by use of a treatment system including a conduit have a distal portion, a coupler slidably coupled to the distal portion, an occlusive member coupled to the coupler, and a securing member coupled to the conduit proximal to the coupler. The securing member can include a distal end portion that is removably coupled to the coupler. In some embodiments, the securing member can have a shape and/or be treated such that the securing member self-expands to decouple itself from the coupler during deployment of the occlusive member. In some embodiments, movement of the conduit relative to the coupler causes the securing member to decouple from the coupler.

Growing community of inventors

Westminster, CA, United States of America

Andyanhdzung Huynh