Neuravi Limited

Novate Medical Limited

Jacqueline O'Gorman

David Vale

Brendan Casey

Michael Gilvarry

Steven Horan

Paul Gilson

Karl Keating

Kevin McArdle

Daniel King

Aidan Dominic Goggin

Jerome A Henry

Damien Ryan

Brian Fahy

Paul Bateman

Shane Molloy

Eamon Brady

Maeve Holian

Martin Keegan

Dara Finneran

Megan MacDonagh

Declan Broderick

David Hardiman

Alan Keane

Ronan O'Connor

Kevin Mcardle

A vascular filter device () has a support frame () and filter elements (). The filter elements () extend from the support frame towards filter element ends forming an on-axis apex () at which they are interconnected by a holder (). The filter elements () are biased such that if unconnected the filter element ends are located between the support frame and said central axis when the vascular filter device is unconstrained. The filter element unconnected positions are provided by the filter element shapes and the angles at which they extend from the support frame, and in one example this is achieved by laser cutting tubing and heat setting the material.

Vascular filter device

A clot retrieval device for removing occlusive clot from a blood vessel. The device comprises an inner elongate body having a collapsed delivery configuration and an expanded deployed configuration. An outer elongate body is at least partially overlying the inner elongate body. The outer elongate body is expandable to a radial extent which is greater than the radial extent of the inner body in the deployed configuration to define a clot reception space. The outer elongate body has a plurality of clot receiving openings and a plurality of clot engaging regions. The clot engaging regions are adapted, on engagement with clot, to urge clot towards the clot receiving openings and into the reception space between the outer elongate body and the inner elongate body, wherein the radial force profile of the device varies along the length of the device.

Clot retrieval device for removing occlusive clot from a blood vessel

A clot removal device for removing clot from a body vessel includes an expandable structure having a constrained delivery configuration, an expanded clot engaging deployed configuration, and an at least partially constrained clot pinching configuration, the expandable structure including a proximal section comprising a plurality of struts with opening angles; a mid-section distal of the proximal section and comprising a plurality of struts with opening angles and cells larger than cells of the proximal section, the mid-section being configured to expand a larger radial extent in the deployed configuration than the proximal section to provide clot grip and retention during retraction of the clot; wherein the proximal section is configured to pinch the clot from the body vessel when partially resheathed by a microcatheter.

Clot retrieval device for removing clot from a blood vessel

A clot retrieval device for removing an occlusive clot from a blood vessel. The device includes a clot engagement section having a constrained delivery configuration and an expanded deployed configuration, wherein in the expanded deployed configuration. The clot engagement section can include a plurality of peak sections configured to vary contact pressure between the clot and the device along a length of the device; and a plurality of troughs between respective peak sections comprising a clot reception space. Each peak is configured to exert a relatively high compressive force on the clot whereas each trough is configured to exert little or no compressive force on the clot.

A vascular filter device () has a support () for engaging the wall of a blood vessel. A filter has filter elements () having proximal segments () connected to the support () and distal segments at least temporarily restrained at a distal apex () by a holder when in a filtering closed position. At least one filter element () extends radially outwardly with respect to a device longitudinal axis when unconstrained. The filter element may extend in a curve with a concave portion facing radially outwardly in an unconstrained configuration.

Vascular filter system

A clot retrieval device comprising an elongate shaft having a proximal end and a distal end and a clot retrieval element at the distal end of the elongate shaft. A proximal end of the elongate shaft of the clot retrieval device is adapted for retraction of a first catheter over the clot retrieval device elongate shaft. A second catheter is advanced to or adjacent to the distal end of the clot retrieval device shaft to enable enhanced aspiration adjacent to the clot retrieval element.

Clot retrieval system for removing occlusive clot from a blood vessel

A vascular filter device () comprises a plurality of filter elements () which are movable from a capturing position to an open position upon elapse of a predetermined period of time. In the capturing position the filter elements () are configured to capture thrombus passing through the inferior vena cava. In the open position the filter elements () are configured to facilitate unrestricted blood flow. The filter elements () are biased towards the open position. The filter () comprises a holder member () to temporarily hold the filter elements () in the capturing position until elapse of the predetermined period of time. The holder member () comprises a biostable wire element () which extends through an opening () in each filter element (), and a biodegradable/bioabsorbable stop element (). Upon biodegrading/bioabsorbing of the stop element (), the filter elements () are free to move from the capturing position to the open position.

An expandable mechanical device for use during a thrombectomy medical procedure having enhanced visibility during imaging. Furthermore, the configuration of the eyelet and/or strut optimizes retention of the marker in the eyelet during the medical procedure without increasing overall profile of strut.

Visibility of mechanical thrombectomy device during diagnostic imaging

A vascular filter comprises includes a proximal support hoop, a plurality of support struts, and a plurality of capture arms. The proximal support hoop extends around the internal wall of the inferior vena cava in a wave pattern having six distal peaks and six proximal peaks. The proximal support hoop includes an enlarged end element at each peak. The support struts extend longitudinally along the internal wall of the inferior vena cava in a curve. Two capture arms are connected to the proximal support hoop at each distal peak. Each capture arm extends from the distal peak to an apex in a curve. The concave portion of the first curve faces inwardly towards the concave portion of the second curve.

Vascular filter

A catheter has an expansile tip that can be delivered in a constricted form. The increased tip diameter facilitates the aspiration and removal of large clot volumes by increasing the area of the catheter tip that applies aspiration to the clot. The tip comprises a support frame which can be cut from a metal or polymer tube, covered with a thin polymer sleevecontaining highly elastic properties. This construction provides good pushability and high compressive resistance. The cut pattern can contain axial connections of the support frame and ring members, which will provide a large level of axial support, lateral flexibility and hoop strength to withstand aspiration. The tip of the device can contain a section proximal of the highly flexible area that can expand to except clot. This potential to increase body diameter facilitates the retrieval of large volume clots while the construction of the catheter provides good column stiffness to avoid axial collapse and still maintain good flexibility.

Devices and methods for removal of acute blockages from blood vessels

A clot removal device for removing clot from a body vessel comprises an expandable structure and an elongate member. The expandable structure has a constrained delivery configuration, an expanded clot engaging deployed configuration, and an at least partially constrained clot pinching configuration. At least a portion of the expandable structure is configured to engage clot in the expanded deployed configuration and to pinch clot on movement from the deployed configuration to the clot capture configuration. The expandable structure may comprise a main body portion and a clot pinching structure and a diameter of the clot pinching structure is less than a diameter of the main body portion. The clot pinching structure may be substantially tubular and of spiral form.

Growing community of inventors

County Clare, Ireland

Jacqueline O'Gorman